leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm-misc-next for 5.2:

Browse Source 
UAPI Changes:
 -syncobj: Add TIMELINE_WAIT|QUERY|TRANSFER|TIMELINE_SIGNAL ioctls (Chunming)
 -Clarify that 1.0 can be represented by drm_color_lut (Daniel)
 
 Cross-subsystem Changes:
 -dt-bindings: Add binding for rk3066 hdmi (Johan)
 -dt-bindings: Add binding for Feiyang FY07024DI26A30-D panel (Jagan)
 -dt-bindings: Add Rocktech vendor prefix and jh057n00900 panel bindings (Guido)
 -MAINTAINERS: Add lima and ASPEED entries (Joel & Qiang)
 
 Core Changes:
 -memory: use dma_alloc_coherent when mem encryption is active (Christian)
 -dma_buf: add support for a dma_fence chain (Christian)
 -shmem_gem: fix off-by-one bug in new shmem gem helpers (Dan)
 
 Driver Changes:
 -rockchip: Add support for rk3066 hdmi (Johan)
 -ASPEED: Add driver supporting ASPEED BMC display controller to drm (Joel)
 -lima: Add driver supporting Arm Mali4xx gpus to drm (Qiang)
 -vc4/v3d: Various cleanups and improved error handling (Eric)
 -panel: Add support for Feiyang FY07024DI26A30-D MIPI-DSI panel (Jagan)
 -panel: Add support for Rocktech jh057n00900 MIPI-DSI panel (Guido)
 
 Cc: Johan Jonker <jbx6244@gmail.com>
 Cc: Christian König <christian.koenig@amd.com>
 Cc: Chunming Zhou <david1.zhou@amd.com>
 Cc: Dan Carpenter <dan.carpenter@oracle.com>
 Cc: Eric Anholt <eric@anholt.net>
 Cc: Qiang Yu <yuq825@gmail.com>
 Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
 Cc: Jagan Teki <jagan@amarulasolutions.com>
 Cc: Guido Günther <agx@sigxcpu.org>
 Cc: Joel Stanley <joel@jms.id.au>
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEfxcpfMSgdnQMs+QqlvcN/ahKBwoFAlymY/4ACgkQlvcN/ahK
 BwpQ7Qf/UPIpxGVNbNZaftKgxO4Po4D+2lvXmABlmZK1fhF0YCJeL9dZSnbeaXt+
 7BhvvL5pskw+DFLCsWwQ0l51vSIA2AQMIfeplnmdMZS6zgp8Ky9sxB0F0s/ZyRhk
 Acxw3pb2n8UkpHw31IcqRhGXK+lYjNKd139p+FPzuTZzeUVBg62NKwxsamME7UjX
 BC+w3y1oNM2mlTHtJX+9XX2JK4IqXGiNq+rWJVWAtz7hnidb6OivnA8W6xKTw5LZ
 PPANpCc4JURLvjt/kPDQ9X+tJEEAYEiAbeBIdpF+xrVtVdBHUIfo3KKUFB6OmvKI
 ZkHj20K51j25TyDZof4EM/N7T2XOYg==
 =gk9i
 -----END PGP SIGNATURE-----

Merge tag 'drm-misc-next-2019-04-04' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.2:

UAPI Changes:
-syncobj: Add TIMELINE_WAIT|QUERY|TRANSFER|TIMELINE_SIGNAL ioctls (Chunming)
-Clarify that 1.0 can be represented by drm_color_lut (Daniel)

Cross-subsystem Changes:
-dt-bindings: Add binding for rk3066 hdmi (Johan)
-dt-bindings: Add binding for Feiyang FY07024DI26A30-D panel (Jagan)
-dt-bindings: Add Rocktech vendor prefix and jh057n00900 panel bindings (Guido)
-MAINTAINERS: Add lima and ASPEED entries (Joel & Qiang)

Core Changes:
-memory: use dma_alloc_coherent when mem encryption is active (Christian)
-dma_buf: add support for a dma_fence chain (Christian)
-shmem_gem: fix off-by-one bug in new shmem gem helpers (Dan)

Driver Changes:
-rockchip: Add support for rk3066 hdmi (Johan)
-ASPEED: Add driver supporting ASPEED BMC display controller to drm (Joel)
-lima: Add driver supporting Arm Mali4xx gpus to drm (Qiang)
-vc4/v3d: Various cleanups and improved error handling (Eric)
-panel: Add support for Feiyang FY07024DI26A30-D MIPI-DSI panel (Jagan)
-panel: Add support for Rocktech jh057n00900 MIPI-DSI panel (Guido)

Cc: Johan Jonker <jbx6244@gmail.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Chunming Zhou <david1.zhou@amd.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Qiang Yu <yuq825@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Guido Günther <agx@sigxcpu.org>
Cc: Joel Stanley <joel@jms.id.au>
[airlied: fixed XA limit build breakage, Rodrigo also submitted the same patch, but
I squashed it in the merge.]
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20190404201016.GA139524@art_vandelay
This commit is contained in:
Dave Airlie 2019-04-05 11:21:47 +10:00
commit 14d2bd53a4
114 changed files with 8558 additions and 739 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
Documentation/devicetree/bindings/display/panel/feiyang,fy07024di26a30d.txt Normal file
View File

@ -0,0 +1,20 @@
Feiyang FY07024DI26A30-D 7" MIPI-DSI LCD Panel
Required properties:
- compatible: must be "feiyang,fy07024di26a30d"
- reg: DSI virtual channel used by that screen
- avdd-supply: analog regulator dc1 switch
- dvdd-supply: 3v3 digital regulator
- reset-gpios: a GPIO phandle for the reset pin
Optional properties:
- backlight: phandle for the backlight control.
panel@0 {
compatible = "feiyang,fy07024di26a30d";
reg = <0>;
avdd-supply = <&reg_dc1sw>;
dvdd-supply = <&reg_dldo2>;
reset-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* LCD-RST: PD24 */
backlight = <&backlight>;
};

2
Documentation/devicetree/bindings/display/panel/innolux,p079zca.txt
View File

@ -12,7 +12,7 @@ Optional properties:
Example:
&mipi_dsi {
panel {
panel@0 {
compatible = "innolux,p079zca";
reg = <0>;
power-supply = <...>;

2
Documentation/devicetree/bindings/display/panel/innolux,p097pfg.txt
View File

@ -13,7 +13,7 @@ Optional properties:
Example:
&mipi_dsi {
panel {
panel@0 {
compatible = "innolux,p079zca";
reg = <0>;
avdd-supply = <...>;

2
Documentation/devicetree/bindings/display/panel/kingdisplay,kd097d04.txt
View File

@ -12,7 +12,7 @@ Optional properties:
Example:
&mipi_dsi {
panel {
panel@0 {
compatible = "kingdisplay,kd097d04";
reg = <0>;
power-supply = <...>;

18
Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.txt Normal file
View File

@ -0,0 +1,18 @@
Rocktech jh057n00900 5.5" 720x1440 TFT LCD panel
Required properties:
- compatible: should be "rocktech,jh057n00900"
- reg: DSI virtual channel of the peripheral
- reset-gpios: panel reset gpio
- backlight: phandle of the backlight device attached to the panel
Example:
&mipi_dsi {
panel@0 {
compatible = "rocktech,jh057n00900";
reg = <0>;
backlight = <&backlight>;
reset-gpios = <&gpio3 13 GPIO_ACTIVE_LOW>;
};
};

72
Documentation/devicetree/bindings/display/rockchip/rockchip,rk3066-hdmi.txt Normal file
View File

@ -0,0 +1,72 @@
Rockchip specific extensions for rk3066 HDMI
============================================
Required properties:
- compatible:
"rockchip,rk3066-hdmi";
- reg:
Physical base address and length of the controller's registers.
- clocks, clock-names:
Phandle to HDMI controller clock, name should be "hclk".
- interrupts:
HDMI interrupt number.
- power-domains:
Phandle to the RK3066_PD_VIO power domain.
- rockchip,grf:
This soc uses GRF regs to switch the HDMI TX input between vop0 and vop1.
- ports:
Contains one port node with two endpoints, numbered 0 and 1,
connected respectively to vop0 and vop1.
Contains one port node with one endpoint
connected to a hdmi-connector node.
- pinctrl-0, pinctrl-name:
Switch the iomux for the HPD/I2C pins to HDMI function.
Example:
hdmi: hdmi@10116000 {
compatible = "rockchip,rk3066-hdmi";
reg = <0x10116000 0x2000>;
interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru HCLK_HDMI>;
clock-names = "hclk";
power-domains = <&power RK3066_PD_VIO>;
rockchip,grf = <&grf>;
pinctrl-names = "default";
pinctrl-0 = <&hdmii2c_xfer>, <&hdmi_hpd>;
ports {
#address-cells = <1>;
#size-cells = <0>;
hdmi_in: port@0 {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
hdmi_in_vop0: endpoint@0 {
reg = <0>;
remote-endpoint = <&vop0_out_hdmi>;
};
hdmi_in_vop1: endpoint@1 {
reg = <1>;
remote-endpoint = <&vop1_out_hdmi>;
};
};
hdmi_out: port@1 {
reg = <1>;
hdmi_out_con: endpoint {
remote-endpoint = <&hdmi_con_in>;
};
};
};
};
&pinctrl {
hdmi {
hdmi_hpd: hdmi-hpd {
rockchip,pins = <0 RK_PA0 1 &pcfg_pull_default>;
};
hdmii2c_xfer: hdmii2c-xfer {
rockchip,pins = <0 RK_PA1 1 &pcfg_pull_none>,
<0 RK_PA2 1 &pcfg_pull_none>;
};
};
};

41
Documentation/devicetree/bindings/gpu/aspeed-gfx.txt Normal file
View File

@ -0,0 +1,41 @@
Device tree configuration for the GFX display device on the ASPEED SoCs
Required properties:
- compatible
* Must be one of the following:
+ aspeed,ast2500-gfx
+ aspeed,ast2400-gfx
* In addition, the ASPEED pinctrl bindings require the 'syscon' property to
be present
- reg: Physical base address and length of the GFX registers
- interrupts: interrupt number for the GFX device
- clocks: clock number used to generate the pixel clock
- resets: reset line that must be released to use the GFX device
- memory-region:
Phandle to a memory region to allocate from, as defined in
Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
Example:
gfx: display@1e6e6000 {
compatible = "aspeed,ast2500-gfx", "syscon";
reg = <0x1e6e6000 0x1000>;
reg-io-width = <4>;
clocks = <&syscon ASPEED_CLK_GATE_D1CLK>;
resets = <&syscon ASPEED_RESET_CRT1>;
interrupts = <0x19>;
memory-region = <&gfx_memory>;
};
gfx_memory: framebuffer {
size = <0x01000000>;
alignment = <0x01000000>;
compatible = "shared-dma-pool";
reusable;
};

1
Documentation/devicetree/bindings/vendor-prefixes.txt
View File

@ -345,6 +345,7 @@ ricoh Ricoh Co. Ltd.
rikomagic Rikomagic Tech Corp. Ltd
riscv RISC-V Foundation
rockchip Fuzhou Rockchip Electronics Co., Ltd
rocktech ROCKTECH DISPLAYS LIMITED
rohm ROHM Semiconductor Co., Ltd
ronbo Ronbo Electronics
roofull Shenzhen Roofull Technology Co, Ltd

29
MAINTAINERS
View File

@ -4894,6 +4894,14 @@ M: Dave Airlie <airlied@redhat.com>
S: Odd Fixes
F: drivers/gpu/drm/ast/
DRM DRIVER FOR ASPEED BMC GFX
M: Joel Stanley <joel@jms.id.au>
L: linux-aspeed@lists.ozlabs.org
T: git git://anongit.freedesktop.org/drm/drm-misc
S: Supported
F: drivers/gpu/drm/aspeed/
F: Documentation/devicetree/bindings/gpu/aspeed-gfx.txt
DRM DRIVER FOR BOCHS VIRTUAL GPU
M: Gerd Hoffmann <kraxel@redhat.com>
L: virtualization@lists.linux-foundation.org
@ -4907,6 +4915,12 @@ T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
F: drivers/gpu/drm/tve200/
DRM DRIVER FOR FEIYANG FY07024DI26A30-D MIPI-DSI LCD PANELS
M: Jagan Teki <jagan@amarulasolutions.com>
S: Maintained
F: drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c
F: Documentation/devicetree/bindings/display/panel/feiyang,fy07024di26a30d.txt
DRM DRIVER FOR ILITEK ILI9225 PANELS
M: David Lechner <david@lechnology.com>
S: Maintained
@ -4998,6 +5012,12 @@ S: Orphan / Obsolete
F: drivers/gpu/drm/r128/
F: include/uapi/drm/r128_drm.h
DRM DRIVER FOR ROCKTECH JH057N00900 PANELS
M: Guido Günther <agx@sigxcpu.org>
S: Maintained
F: drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
F: Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.txt
DRM DRIVER FOR SAVAGE VIDEO CARDS
S: Orphan / Obsolete
F: drivers/gpu/drm/savage/
@ -5186,6 +5206,15 @@ S: Maintained
F: drivers/gpu/drm/hisilicon/
F: Documentation/devicetree/bindings/display/hisilicon/
DRM DRIVERS FOR LIMA
M: Qiang Yu <yuq825@gmail.com>
L: dri-devel@lists.freedesktop.org
L: lima@lists.freedesktop.org
S: Maintained
F: drivers/gpu/drm/lima/
F: include/uapi/drm/lima_drm.h
T: git git://anongit.freedesktop.org/drm/drm-misc
DRM DRIVERS FOR MEDIATEK
M: CK Hu <ck.hu@mediatek.com>
M: Philipp Zabel <p.zabel@pengutronix.de>

3
drivers/dma-buf/Makefile
View File

@ -1,4 +1,5 @@
obj-y := dma-buf.o dma-fence.o dma-fence-array.o reservation.o seqno-fence.o
obj-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
reservation.o seqno-fence.o
obj-$(CONFIG_SYNC_FILE) += sync_file.o
obj-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o
obj-$(CONFIG_UDMABUF) += udmabuf.o

241
drivers/dma-buf/dma-fence-chain.c Normal file
View File

@ -0,0 +1,241 @@
/*
* fence-chain: chain fences together in a timeline
*
* Copyright (C) 2018 Advanced Micro Devices, Inc.
* Authors:
* Christian König <christian.koenig@amd.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#include <linux/dma-fence-chain.h>
static bool dma_fence_chain_enable_signaling(struct dma_fence *fence);
/**
* dma_fence_chain_get_prev - use RCU to get a reference to the previous fence
* @chain: chain node to get the previous node from
*
* Use dma_fence_get_rcu_safe to get a reference to the previous fence of the
* chain node.
*/
static struct dma_fence *dma_fence_chain_get_prev(struct dma_fence_chain *chain)
{
struct dma_fence *prev;
rcu_read_lock();
prev = dma_fence_get_rcu_safe(&chain->prev);
rcu_read_unlock();
return prev;
}
/**
* dma_fence_chain_walk - chain walking function
* @fence: current chain node
*
* Walk the chain to the next node. Returns the next fence or NULL if we are at
* the end of the chain. Garbage collects chain nodes which are already
* signaled.
*/
struct dma_fence *dma_fence_chain_walk(struct dma_fence *fence)
{
struct dma_fence_chain *chain, *prev_chain;
struct dma_fence *prev, *replacement, *tmp;
chain = to_dma_fence_chain(fence);
if (!chain) {
dma_fence_put(fence);
return NULL;
}
while ((prev = dma_fence_chain_get_prev(chain))) {
prev_chain = to_dma_fence_chain(prev);
if (prev_chain) {
if (!dma_fence_is_signaled(prev_chain->fence))
break;
replacement = dma_fence_chain_get_prev(prev_chain);
} else {
if (!dma_fence_is_signaled(prev))
break;
replacement = NULL;
}
tmp = cmpxchg((void **)&chain->prev, (void *)prev, (void *)replacement);
if (tmp == prev)
dma_fence_put(tmp);
else
dma_fence_put(replacement);
dma_fence_put(prev);
}
dma_fence_put(fence);
return prev;
}
EXPORT_SYMBOL(dma_fence_chain_walk);
/**
* dma_fence_chain_find_seqno - find fence chain node by seqno
* @pfence: pointer to the chain node where to start
* @seqno: the sequence number to search for
*
* Advance the fence pointer to the chain node which will signal this sequence
* number. If no sequence number is provided then this is a no-op.
*
* Returns EINVAL if the fence is not a chain node or the sequence number has
* not yet advanced far enough.
*/
int dma_fence_chain_find_seqno(struct dma_fence **pfence, uint64_t seqno)
{
struct dma_fence_chain *chain;
if (!seqno)
return 0;
chain = to_dma_fence_chain(*pfence);
if (!chain || chain->base.seqno < seqno)
return -EINVAL;
dma_fence_chain_for_each(*pfence, &chain->base) {
if ((*pfence)->context != chain->base.context ||
to_dma_fence_chain(*pfence)->prev_seqno < seqno)
break;
}
dma_fence_put(&chain->base);
return 0;
}
EXPORT_SYMBOL(dma_fence_chain_find_seqno);
static const char *dma_fence_chain_get_driver_name(struct dma_fence *fence)
{
return "dma_fence_chain";
}
static const char *dma_fence_chain_get_timeline_name(struct dma_fence *fence)
{
return "unbound";
}
static void dma_fence_chain_irq_work(struct irq_work *work)
{
struct dma_fence_chain *chain;
chain = container_of(work, typeof(*chain), work);
/* Try to rearm the callback */
if (!dma_fence_chain_enable_signaling(&chain->base))
/* Ok, we are done. No more unsignaled fences left */
dma_fence_signal(&chain->base);
dma_fence_put(&chain->base);
}
static void dma_fence_chain_cb(struct dma_fence *f, struct dma_fence_cb *cb)
{
struct dma_fence_chain *chain;
chain = container_of(cb, typeof(*chain), cb);
irq_work_queue(&chain->work);
dma_fence_put(f);
}
static bool dma_fence_chain_enable_signaling(struct dma_fence *fence)
{
struct dma_fence_chain *head = to_dma_fence_chain(fence);
dma_fence_get(&head->base);
dma_fence_chain_for_each(fence, &head->base) {
struct dma_fence_chain *chain = to_dma_fence_chain(fence);
struct dma_fence *f = chain ? chain->fence : fence;
dma_fence_get(f);
if (!dma_fence_add_callback(f, &head->cb, dma_fence_chain_cb)) {
dma_fence_put(fence);
return true;
}
dma_fence_put(f);
}
dma_fence_put(&head->base);
return false;
}
static bool dma_fence_chain_signaled(struct dma_fence *fence)
{
dma_fence_chain_for_each(fence, fence) {
struct dma_fence_chain *chain = to_dma_fence_chain(fence);
struct dma_fence *f = chain ? chain->fence : fence;
if (!dma_fence_is_signaled(f)) {
dma_fence_put(fence);
return false;
}
}
return true;
}
static void dma_fence_chain_release(struct dma_fence *fence)
{
struct dma_fence_chain *chain = to_dma_fence_chain(fence);
dma_fence_put(rcu_dereference_protected(chain->prev, true));
dma_fence_put(chain->fence);
dma_fence_free(fence);
}
const struct dma_fence_ops dma_fence_chain_ops = {
.get_driver_name = dma_fence_chain_get_driver_name,
.get_timeline_name = dma_fence_chain_get_timeline_name,
.enable_signaling = dma_fence_chain_enable_signaling,
.signaled = dma_fence_chain_signaled,
.release = dma_fence_chain_release,
};
EXPORT_SYMBOL(dma_fence_chain_ops);
/**
* dma_fence_chain_init - initialize a fence chain
* @chain: the chain node to initialize
* @prev: the previous fence
* @fence: the current fence
*
* Initialize a new chain node and either start a new chain or add the node to
* the existing chain of the previous fence.
*/
void dma_fence_chain_init(struct dma_fence_chain *chain,
struct dma_fence *prev,
struct dma_fence *fence,
uint64_t seqno)
{
struct dma_fence_chain *prev_chain = to_dma_fence_chain(prev);
uint64_t context;
spin_lock_init(&chain->lock);
rcu_assign_pointer(chain->prev, prev);
chain->fence = fence;
chain->prev_seqno = 0;
init_irq_work(&chain->work, dma_fence_chain_irq_work);
/* Try to reuse the context of the previous chain node. */
if (prev_chain && __dma_fence_is_later(seqno, prev->seqno)) {
context = prev->context;
chain->prev_seqno = prev->seqno;
} else {
context = dma_fence_context_alloc(1);
/* Make sure that we always have a valid sequence number. */
if (prev_chain)
seqno = max(prev->seqno, seqno);
}
dma_fence_init(&chain->base, &dma_fence_chain_ops,
&chain->lock, context, seqno);
}
EXPORT_SYMBOL(dma_fence_chain_init);

4
drivers/gpu/drm/Kconfig
View File

@ -335,6 +335,10 @@ source "drivers/gpu/drm/xen/Kconfig"
source "drivers/gpu/drm/vboxvideo/Kconfig"
source "drivers/gpu/drm/lima/Kconfig"
source "drivers/gpu/drm/aspeed/Kconfig"
# Keep legacy drivers last
menuconfig DRM_LEGACY

2
drivers/gpu/drm/Makefile
View File

@ -110,3 +110,5 @@ obj-$(CONFIG_DRM_PL111) += pl111/
obj-$(CONFIG_DRM_TVE200) += tve200/
obj-$(CONFIG_DRM_XEN) += xen/
obj-$(CONFIG_DRM_VBOXVIDEO) += vboxvideo/
obj-$(CONFIG_DRM_LIMA) += lima/
obj-$(CONFIG_DRM_ASPEED_GFX) += aspeed/

14
drivers/gpu/drm/aspeed/Kconfig Normal file
View File

@ -0,0 +1,14 @@
config DRM_ASPEED_GFX
tristate "ASPEED BMC Display Controller"
depends on DRM && OF
select DRM_KMS_HELPER
select DRM_KMS_CMA_HELPER
select DRM_PANEL
select DMA_CMA
select CMA
select MFD_SYSCON
help
Chose this option if you have an ASPEED AST2500 SOC Display
Controller (aka GFX).
If M is selected this module will be called aspeed_gfx.

3
drivers/gpu/drm/aspeed/Makefile Normal file
View File

@ -0,0 +1,3 @@
aspeed_gfx-y := aspeed_gfx_drv.o aspeed_gfx_crtc.o aspeed_gfx_out.o
obj-$(CONFIG_DRM_ASPEED_GFX) += aspeed_gfx.o

104
drivers/gpu/drm/aspeed/aspeed_gfx.h Normal file
View File

@ -0,0 +1,104 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/* Copyright 2018 IBM Corporation */
#include <drm/drm_device.h>
#include <drm/drm_simple_kms_helper.h>
struct aspeed_gfx {
void __iomem *base;
struct clk *clk;
struct reset_control *rst;
struct regmap *scu;
struct drm_simple_display_pipe pipe;
struct drm_connector connector;
struct drm_fbdev_cma *fbdev;
};
int aspeed_gfx_create_pipe(struct drm_device *drm);
int aspeed_gfx_create_output(struct drm_device *drm);
#define CRT_CTRL1 0x60 /* CRT Control I */
#define CRT_CTRL2 0x64 /* CRT Control II */
#define CRT_STATUS 0x68 /* CRT Status */
#define CRT_MISC 0x6c /* CRT Misc Setting */
#define CRT_HORIZ0 0x70 /* CRT Horizontal Total & Display Enable End */
#define CRT_HORIZ1 0x74 /* CRT Horizontal Retrace Start & End */
#define CRT_VERT0 0x78 /* CRT Vertical Total & Display Enable End */
#define CRT_VERT1 0x7C /* CRT Vertical Retrace Start & End */
#define CRT_ADDR 0x80 /* CRT Display Starting Address */
#define CRT_OFFSET 0x84 /* CRT Display Offset & Terminal Count */
#define CRT_THROD 0x88 /* CRT Threshold */
#define CRT_XSCALE 0x8C /* CRT Scaling-Up Factor */
#define CRT_CURSOR0 0x90 /* CRT Hardware Cursor X & Y Offset */
#define CRT_CURSOR1 0x94 /* CRT Hardware Cursor X & Y Position */
#define CRT_CURSOR2 0x98 /* CRT Hardware Cursor Pattern Address */
#define CRT_9C 0x9C
#define CRT_OSD_H 0xA0 /* CRT OSD Horizontal Start/End */
#define CRT_OSD_V 0xA4 /* CRT OSD Vertical Start/End */
#define CRT_OSD_ADDR 0xA8 /* CRT OSD Pattern Address */
#define CRT_OSD_DISP 0xAC /* CRT OSD Offset */
#define CRT_OSD_THRESH 0xB0 /* CRT OSD Threshold & Alpha */
#define CRT_B4 0xB4
#define CRT_STS_V 0xB8 /* CRT Status V */
#define CRT_SCRATCH 0xBC /* Scratchpad */
#define CRT_BB0_ADDR 0xD0 /* CRT Display BB0 Starting Address */
#define CRT_BB1_ADDR 0xD4 /* CRT Display BB1 Starting Address */
#define CRT_BB_COUNT 0xD8 /* CRT Display BB Terminal Count */
#define OSD_COLOR1 0xE0 /* OSD Color Palette Index 1 & 0 */
#define OSD_COLOR2 0xE4 /* OSD Color Palette Index 3 & 2 */
#define OSD_COLOR3 0xE8 /* OSD Color Palette Index 5 & 4 */
#define OSD_COLOR4 0xEC /* OSD Color Palette Index 7 & 6 */
#define OSD_COLOR5 0xF0 /* OSD Color Palette Index 9 & 8 */
#define OSD_COLOR6 0xF4 /* OSD Color Palette Index 11 & 10 */
#define OSD_COLOR7 0xF8 /* OSD Color Palette Index 13 & 12 */
#define OSD_COLOR8 0xFC /* OSD Color Palette Index 15 & 14 */
/* CTRL1 */
#define CRT_CTRL_EN BIT(0)
#define CRT_CTRL_HW_CURSOR_EN BIT(1)
#define CRT_CTRL_OSD_EN BIT(2)
#define CRT_CTRL_INTERLACED BIT(3)
#define CRT_CTRL_COLOR_RGB565 (0 << 7)
#define CRT_CTRL_COLOR_YUV444 (1 << 7)
#define CRT_CTRL_COLOR_XRGB8888 (2 << 7)
#define CRT_CTRL_COLOR_RGB888 (3 << 7)
#define CRT_CTRL_COLOR_YUV444_2RGB (5 << 7)
#define CRT_CTRL_COLOR_YUV422 (7 << 7)
#define CRT_CTRL_COLOR_MASK GENMASK(9, 7)
#define CRT_CTRL_HSYNC_NEGATIVE BIT(16)
#define CRT_CTRL_VSYNC_NEGATIVE BIT(17)
#define CRT_CTRL_VERTICAL_INTR_EN BIT(30)
#define CRT_CTRL_VERTICAL_INTR_STS BIT(31)
/* CTRL2 */
#define CRT_CTRL_DAC_EN BIT(0)
#define CRT_CTRL_VBLANK_LINE(x) (((x) << 20) & CRT_CTRL_VBLANK_LINE_MASK)
#define CRT_CTRL_VBLANK_LINE_MASK GENMASK(20, 31)
/* CRT_HORIZ0 */
#define CRT_H_TOTAL(x) (x)
#define CRT_H_DE(x) ((x) << 16)
/* CRT_HORIZ1 */
#define CRT_H_RS_START(x) (x)
#define CRT_H_RS_END(x) ((x) << 16)
/* CRT_VIRT0 */
#define CRT_V_TOTAL(x) (x)
#define CRT_V_DE(x) ((x) << 16)
/* CRT_VIRT1 */
#define CRT_V_RS_START(x) (x)
#define CRT_V_RS_END(x) ((x) << 16)
/* CRT_OFFSET */
#define CRT_DISP_OFFSET(x) (x)
#define CRT_TERM_COUNT(x) ((x) << 16)
/* CRT_THROD */
#define CRT_THROD_LOW(x) (x)
#define CRT_THROD_HIGH(x) ((x) << 8)
/* Default Threshold Seting */
#define G5_CRT_THROD_VAL (CRT_THROD_LOW(0x24) | CRT_THROD_HIGH(0x3C))

241
drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c Normal file
View File

@ -0,0 +1,241 @@
// SPDX-License-Identifier: GPL-2.0+
// Copyright 2018 IBM Corporation
#include <linux/clk.h>
#include <linux/reset.h>
#include <linux/regmap.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_device.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_panel.h>
#include <drm/drm_simple_kms_helper.h>
#include <drm/drm_vblank.h>
#include "aspeed_gfx.h"
static struct aspeed_gfx *
drm_pipe_to_aspeed_gfx(struct drm_simple_display_pipe *pipe)
{
return container_of(pipe, struct aspeed_gfx, pipe);
}
static int aspeed_gfx_set_pixel_fmt(struct aspeed_gfx *priv, u32 *bpp)
{
struct drm_crtc *crtc = &priv->pipe.crtc;
struct drm_device *drm = crtc->dev;
const u32 format = crtc->primary->state->fb->format->format;
u32 ctrl1;
ctrl1 = readl(priv->base + CRT_CTRL1);
ctrl1 &= ~CRT_CTRL_COLOR_MASK;
switch (format) {
case DRM_FORMAT_RGB565:
dev_dbg(drm->dev, "Setting up RGB565 mode\n");
ctrl1 |= CRT_CTRL_COLOR_RGB565;
*bpp = 16;
break;
case DRM_FORMAT_XRGB8888:
dev_dbg(drm->dev, "Setting up XRGB8888 mode\n");
ctrl1 |= CRT_CTRL_COLOR_XRGB8888;
*bpp = 32;
break;
default:
dev_err(drm->dev, "Unhandled pixel format %08x\n", format);
return -EINVAL;
}
writel(ctrl1, priv->base + CRT_CTRL1);
return 0;
}
static void aspeed_gfx_enable_controller(struct aspeed_gfx *priv)
{
u32 ctrl1 = readl(priv->base + CRT_CTRL1);
u32 ctrl2 = readl(priv->base + CRT_CTRL2);
/* SCU2C: set DAC source for display output to Graphics CRT (GFX) */
regmap_update_bits(priv->scu, 0x2c, BIT(16), BIT(16));
writel(ctrl1 | CRT_CTRL_EN, priv->base + CRT_CTRL1);
writel(ctrl2 | CRT_CTRL_DAC_EN, priv->base + CRT_CTRL2);
}
static void aspeed_gfx_disable_controller(struct aspeed_gfx *priv)
{
u32 ctrl1 = readl(priv->base + CRT_CTRL1);
u32 ctrl2 = readl(priv->base + CRT_CTRL2);
writel(ctrl1 & ~CRT_CTRL_EN, priv->base + CRT_CTRL1);
writel(ctrl2 & ~CRT_CTRL_DAC_EN, priv->base + CRT_CTRL2);
regmap_update_bits(priv->scu, 0x2c, BIT(16), 0);
}
static void aspeed_gfx_crtc_mode_set_nofb(struct aspeed_gfx *priv)
{
struct drm_display_mode *m = &priv->pipe.crtc.state->adjusted_mode;
u32 ctrl1, d_offset, t_count, bpp;
int err;
err = aspeed_gfx_set_pixel_fmt(priv, &bpp);
if (err)
return;
#if 0
/* TODO: we have only been able to test with the 40MHz USB clock. The
* clock is fixed, so we cannot adjust it here. */
clk_set_rate(priv->pixel_clk, m->crtc_clock * 1000);
#endif
ctrl1 = readl(priv->base + CRT_CTRL1);
ctrl1 &= ~(CRT_CTRL_INTERLACED |
CRT_CTRL_HSYNC_NEGATIVE |
CRT_CTRL_VSYNC_NEGATIVE);
if (m->flags & DRM_MODE_FLAG_INTERLACE)
ctrl1 |= CRT_CTRL_INTERLACED;
if (!(m->flags & DRM_MODE_FLAG_PHSYNC))
ctrl1 |= CRT_CTRL_HSYNC_NEGATIVE;
if (!(m->flags & DRM_MODE_FLAG_PVSYNC))
ctrl1 |= CRT_CTRL_VSYNC_NEGATIVE;
writel(ctrl1, priv->base + CRT_CTRL1);
/* Horizontal timing */
writel(CRT_H_TOTAL(m->htotal - 1) | CRT_H_DE(m->hdisplay - 1),
priv->base + CRT_HORIZ0);
writel(CRT_H_RS_START(m->hsync_start - 1) | CRT_H_RS_END(m->hsync_end),
priv->base + CRT_HORIZ1);
/* Vertical timing */
writel(CRT_V_TOTAL(m->vtotal - 1) | CRT_V_DE(m->vdisplay - 1),
priv->base + CRT_VERT0);
writel(CRT_V_RS_START(m->vsync_start) | CRT_V_RS_END(m->vsync_end),
priv->base + CRT_VERT1);
/*
* Display Offset: address difference between consecutive scan lines
* Terminal Count: memory size of one scan line
*/
d_offset = m->hdisplay * bpp / 8;
t_count = (m->hdisplay * bpp + 127) / 128;
writel(CRT_DISP_OFFSET(d_offset) | CRT_TERM_COUNT(t_count),
priv->base + CRT_OFFSET);
/*
* Threshold: FIFO thresholds of refill and stop (16 byte chunks
* per line, rounded up)
*/
writel(G5_CRT_THROD_VAL, priv->base + CRT_THROD);
}
static void aspeed_gfx_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_crtc_state *crtc_state,
struct drm_plane_state *plane_state)
{
struct aspeed_gfx *priv = drm_pipe_to_aspeed_gfx(pipe);
struct drm_crtc *crtc = &pipe->crtc;
aspeed_gfx_crtc_mode_set_nofb(priv);
aspeed_gfx_enable_controller(priv);
drm_crtc_vblank_on(crtc);
}
static void aspeed_gfx_pipe_disable(struct drm_simple_display_pipe *pipe)
{
struct aspeed_gfx *priv = drm_pipe_to_aspeed_gfx(pipe);
struct drm_crtc *crtc = &pipe->crtc;
drm_crtc_vblank_off(crtc);
aspeed_gfx_disable_controller(priv);
}
static void aspeed_gfx_pipe_update(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *plane_state)
{
struct aspeed_gfx *priv = drm_pipe_to_aspeed_gfx(pipe);
struct drm_crtc *crtc = &pipe->crtc;
struct drm_framebuffer *fb = pipe->plane.state->fb;
struct drm_pending_vblank_event *event;
struct drm_gem_cma_object *gem;
spin_lock_irq(&crtc->dev->event_lock);
event = crtc->state->event;
if (event) {
crtc->state->event = NULL;
if (drm_crtc_vblank_get(crtc) == 0)
drm_crtc_arm_vblank_event(crtc, event);
else
drm_crtc_send_vblank_event(crtc, event);
}
spin_unlock_irq(&crtc->dev->event_lock);
if (!fb)
return;
gem = drm_fb_cma_get_gem_obj(fb, 0);
if (!gem)
return;
writel(gem->paddr, priv->base + CRT_ADDR);
}
static int aspeed_gfx_enable_vblank(struct drm_simple_display_pipe *pipe)
{
struct aspeed_gfx *priv = drm_pipe_to_aspeed_gfx(pipe);
u32 reg = readl(priv->base + CRT_CTRL1);
/* Clear pending VBLANK IRQ */
writel(reg | CRT_CTRL_VERTICAL_INTR_STS, priv->base + CRT_CTRL1);
reg |= CRT_CTRL_VERTICAL_INTR_EN;
writel(reg, priv->base + CRT_CTRL1);
return 0;
}
static void aspeed_gfx_disable_vblank(struct drm_simple_display_pipe *pipe)
{
struct aspeed_gfx *priv = drm_pipe_to_aspeed_gfx(pipe);
u32 reg = readl(priv->base + CRT_CTRL1);
reg &= ~CRT_CTRL_VERTICAL_INTR_EN;
writel(reg, priv->base + CRT_CTRL1);
/* Clear pending VBLANK IRQ */
writel(reg | CRT_CTRL_VERTICAL_INTR_STS, priv->base + CRT_CTRL1);
}
static struct drm_simple_display_pipe_funcs aspeed_gfx_funcs = {
.enable = aspeed_gfx_pipe_enable,
.disable = aspeed_gfx_pipe_disable,
.update = aspeed_gfx_pipe_update,
.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
.enable_vblank = aspeed_gfx_enable_vblank,
.disable_vblank = aspeed_gfx_disable_vblank,
};
static const uint32_t aspeed_gfx_formats[] = {
DRM_FORMAT_XRGB8888,
DRM_FORMAT_RGB565,
};
int aspeed_gfx_create_pipe(struct drm_device *drm)
{
struct aspeed_gfx *priv = drm->dev_private;
return drm_simple_display_pipe_init(drm, &priv->pipe, &aspeed_gfx_funcs,
aspeed_gfx_formats,
ARRAY_SIZE(aspeed_gfx_formats),
NULL,
&priv->connector);
}

269
drivers/gpu/drm/aspeed/aspeed_gfx_drv.c Normal file
View File

@ -0,0 +1,269 @@
// SPDX-License-Identifier: GPL-2.0+
// Copyright 2018 IBM Corporation
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/irq.h>
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_reserved_mem.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/reset.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_device.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_simple_kms_helper.h>
#include <drm/drm_vblank.h>
#include <drm/drm_drv.h>
#include "aspeed_gfx.h"
/**
* DOC: ASPEED GFX Driver
*
* This driver is for the ASPEED BMC SoC's 'GFX' display hardware, also called
* the 'SOC Display Controller' in the datasheet. This driver runs on the ARM
* based BMC systems, unlike the ast driver which runs on a host CPU and is for
* a PCIe graphics device.
*
* The AST2500 supports a total of 3 output paths:
*
* 1. VGA output, the output target can choose either or both to the DAC
* or DVO interface.
*
* 2. Graphics CRT output, the output target can choose either or both to
* the DAC or DVO interface.
*
* 3. Video input from DVO, the video input can be used for video engine
* capture or DAC display output.
*
* Output options are selected in SCU2C.
*
* The "VGA mode" device is the PCI attached controller. The "Graphics CRT"
* is the ARM's internal display controller.
*
* The driver only supports a simple configuration consisting of a 40MHz
* pixel clock, fixed by hardware limitations, and the VGA output path.
*
* The driver was written with the 'AST2500 Software Programming Guide' v17,
* which is available under NDA from ASPEED.
*/
static const struct drm_mode_config_funcs aspeed_gfx_mode_config_funcs = {
.fb_create = drm_gem_fb_create,
.atomic_check = drm_atomic_helper_check,
.atomic_commit = drm_atomic_helper_commit,
};
static void aspeed_gfx_setup_mode_config(struct drm_device *drm)
{
drm_mode_config_init(drm);
drm->mode_config.min_width = 0;
drm->mode_config.min_height = 0;
drm->mode_config.max_width = 800;
drm->mode_config.max_height = 600;
drm->mode_config.funcs = &aspeed_gfx_mode_config_funcs;
}
static irqreturn_t aspeed_gfx_irq_handler(int irq, void *data)
{
struct drm_device *drm = data;
struct aspeed_gfx *priv = drm->dev_private;
u32 reg;
reg = readl(priv->base + CRT_CTRL1);
if (reg & CRT_CTRL_VERTICAL_INTR_STS) {
drm_crtc_handle_vblank(&priv->pipe.crtc);
writel(reg, priv->base + CRT_CTRL1);
return IRQ_HANDLED;
}
return IRQ_NONE;
}
static int aspeed_gfx_load(struct drm_device *drm)
{
struct platform_device *pdev = to_platform_device(drm->dev);
struct aspeed_gfx *priv;
struct resource *res;
int ret;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
drm->dev_private = priv;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
priv->base = devm_ioremap_resource(drm->dev, res);
if (IS_ERR(priv->base))
return PTR_ERR(priv->base);
priv->scu = syscon_regmap_lookup_by_compatible("aspeed,ast2500-scu");
if (IS_ERR(priv->scu)) {
dev_err(&pdev->dev, "failed to find SCU regmap\n");
return PTR_ERR(priv->scu);
}
ret = of_reserved_mem_device_init(drm->dev);
if (ret) {
dev_err(&pdev->dev,
"failed to initialize reserved mem: %d\n", ret);
return ret;
}
ret = dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32));
if (ret) {
dev_err(&pdev->dev, "failed to set DMA mask: %d\n", ret);
return ret;
}
priv->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL);
if (IS_ERR(priv->rst)) {
dev_err(&pdev->dev,
"missing or invalid reset controller device tree entry");
return PTR_ERR(priv->rst);
}
reset_control_deassert(priv->rst);
priv->clk = devm_clk_get(drm->dev, NULL);
if (IS_ERR(priv->clk)) {
dev_err(&pdev->dev,
"missing or invalid clk device tree entry");
return PTR_ERR(priv->clk);
}
clk_prepare_enable(priv->clk);
/* Sanitize control registers */
writel(0, priv->base + CRT_CTRL1);
writel(0, priv->base + CRT_CTRL2);
aspeed_gfx_setup_mode_config(drm);
ret = drm_vblank_init(drm, 1);
if (ret < 0) {
dev_err(drm->dev, "Failed to initialise vblank\n");
return ret;
}
ret = aspeed_gfx_create_output(drm);
if (ret < 0) {
dev_err(drm->dev, "Failed to create outputs\n");
return ret;
}
ret = aspeed_gfx_create_pipe(drm);
if (ret < 0) {
dev_err(drm->dev, "Cannot setup simple display pipe\n");
return ret;
}
ret = devm_request_irq(drm->dev, platform_get_irq(pdev, 0),
aspeed_gfx_irq_handler, 0, "aspeed gfx", drm);
if (ret < 0) {
dev_err(drm->dev, "Failed to install IRQ handler\n");
return ret;
}
drm_mode_config_reset(drm);
drm_fbdev_generic_setup(drm, 32);
return 0;
}
static void aspeed_gfx_unload(struct drm_device *drm)
{
drm_kms_helper_poll_fini(drm);
drm_mode_config_cleanup(drm);
drm->dev_private = NULL;
}
DEFINE_DRM_GEM_CMA_FOPS(fops);
static struct drm_driver aspeed_gfx_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET |
DRIVER_PRIME | DRIVER_ATOMIC,
.gem_create_object = drm_cma_gem_create_object_default_funcs,
.dumb_create = drm_gem_cma_dumb_create,
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
.gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
.gem_prime_mmap = drm_gem_prime_mmap,
.fops = &fops,
.name = "aspeed-gfx-drm",
.desc = "ASPEED GFX DRM",
.date = "20180319",
.major = 1,
.minor = 0,
};
static const struct of_device_id aspeed_gfx_match[] = {
{ .compatible = "aspeed,ast2500-gfx" },
{ }
};
static int aspeed_gfx_probe(struct platform_device *pdev)
{
struct drm_device *drm;
int ret;
drm = drm_dev_alloc(&aspeed_gfx_driver, &pdev->dev);
if (IS_ERR(drm))
return PTR_ERR(drm);
ret = aspeed_gfx_load(drm);
if (ret)
goto err_free;
ret = drm_dev_register(drm, 0);
if (ret)
goto err_unload;
return 0;
err_unload:
aspeed_gfx_unload(drm);
err_free:
drm_dev_put(drm);
return ret;
}
static int aspeed_gfx_remove(struct platform_device *pdev)
{
struct drm_device *drm = platform_get_drvdata(pdev);
drm_dev_unregister(drm);
aspeed_gfx_unload(drm);
drm_dev_put(drm);
return 0;
}
static struct platform_driver aspeed_gfx_platform_driver = {
.probe = aspeed_gfx_probe,
.remove = aspeed_gfx_remove,
.driver = {
.name = "aspeed_gfx",
.of_match_table = aspeed_gfx_match,
},
};
module_platform_driver(aspeed_gfx_platform_driver);
MODULE_AUTHOR("Joel Stanley <joel@jms.id.au>");
MODULE_DESCRIPTION("ASPEED BMC DRM/KMS driver");
MODULE_LICENSE("GPL");

42
drivers/gpu/drm/aspeed/aspeed_gfx_out.c Normal file
View File

@ -0,0 +1,42 @@
// SPDX-License-Identifier: GPL-2.0+
// Copyright 2018 IBM Corporation
#include <drm/drm_atomic_helper.h>
#include <drm/drm_connector.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_probe_helper.h>
#include "aspeed_gfx.h"
static int aspeed_gfx_get_modes(struct drm_connector *connector)
{
return drm_add_modes_noedid(connector, 800, 600);
}
static const struct
drm_connector_helper_funcs aspeed_gfx_connector_helper_funcs = {
.get_modes = aspeed_gfx_get_modes,
};
static const struct drm_connector_funcs aspeed_gfx_connector_funcs = {
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = drm_connector_cleanup,
.reset = drm_atomic_helper_connector_reset,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
int aspeed_gfx_create_output(struct drm_device *drm)
{
struct aspeed_gfx *priv = drm->dev_private;
int ret;
priv->connector.dpms = DRM_MODE_DPMS_OFF;
priv->connector.polled = 0;
drm_connector_helper_add(&priv->connector,
&aspeed_gfx_connector_helper_funcs);
ret = drm_connector_init(drm, &priv->connector,
&aspeed_gfx_connector_funcs,
DRM_MODE_CONNECTOR_Unknown);
return ret;
}

1
drivers/gpu/drm/bochs/bochs.h
View File

@ -73,7 +73,6 @@ struct bochs_device {
struct drm_crtc crtc;
struct drm_encoder encoder;
struct drm_connector connector;
bool mode_config_initialized;
/* ttm */
struct {

7
drivers/gpu/drm/bochs/bochs_kms.c
View File

@ -267,7 +267,6 @@ const struct drm_mode_config_funcs bochs_mode_funcs = {
int bochs_kms_init(struct bochs_device *bochs)
{
drm_mode_config_init(bochs->dev);
bochs->mode_config_initialized = true;
bochs->dev->mode_config.max_width = 8192;
bochs->dev->mode_config.max_height = 8192;
@ -292,8 +291,6 @@ int bochs_kms_init(struct bochs_device *bochs)
void bochs_kms_fini(struct bochs_device *bochs)
{
if (bochs->mode_config_initialized) {
drm_mode_config_cleanup(bochs->dev);
bochs->mode_config_initialized = false;
}
drm_atomic_helper_shutdown(bochs->dev);
drm_mode_config_cleanup(bochs->dev);
}

1
drivers/gpu/drm/cirrus/cirrus_drv.h
View File

@ -101,7 +101,6 @@ struct cirrus_crtc {
struct cirrus_fbdev;
struct cirrus_mode_info {
bool mode_config_initialized;
struct cirrus_crtc *crtc;
/* pointer to fbdev info structure */
struct cirrus_fbdev *gfbdev;

8
drivers/gpu/drm/cirrus/cirrus_mode.c
View File

@ -575,7 +575,6 @@ int cirrus_modeset_init(struct cirrus_device *cdev)
int ret;
drm_mode_config_init(cdev->dev);
cdev->mode_info.mode_config_initialized = true;
cdev->dev->mode_config.max_width = CIRRUS_MAX_FB_WIDTH;
cdev->dev->mode_config.max_height = CIRRUS_MAX_FB_HEIGHT;
@ -613,9 +612,6 @@ int cirrus_modeset_init(struct cirrus_device *cdev)
void cirrus_modeset_fini(struct cirrus_device *cdev)
{
cirrus_fbdev_fini(cdev);
if (cdev->mode_info.mode_config_initialized) {
drm_mode_config_cleanup(cdev->dev);
cdev->mode_info.mode_config_initialized = false;
}
drm_helper_force_disable_all(cdev->dev);
drm_mode_config_cleanup(cdev->dev);
}

21
drivers/gpu/drm/drm_fb_helper.c
View File

@ -639,20 +639,19 @@ static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { };
static void dpms_legacy(struct drm_fb_helper *fb_helper, int dpms_mode)
{
struct drm_device *dev = fb_helper->dev;
struct drm_crtc *crtc;
struct drm_connector *connector;
struct drm_mode_set *modeset;
int i, j;
drm_modeset_lock_all(dev);
for (i = 0; i < fb_helper->crtc_count; i++) {
crtc = fb_helper->crtc_info[i].mode_set.crtc;
modeset = &fb_helper->crtc_info[i].mode_set;
if (!crtc->enabled)
if (!modeset->crtc->enabled)
continue;
/* Walk the connectors & encoders on this fb turning them on/off */
drm_fb_helper_for_each_connector(fb_helper, j) {
connector = fb_helper->connector_info[j]->connector;
for (j = 0; j < modeset->num_connectors; j++) {
connector = modeset->connectors[j];
connector->funcs->dpms(connector, dpms_mode);
drm_object_property_set_value(&connector->base,
dev->mode_config.dpms_property, dpms_mode);
@ -1874,7 +1873,6 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
int crtc_count = 0;
int i;
struct drm_fb_helper_surface_size sizes;
int gamma_size = 0;
int best_depth = 0;
memset(&sizes, 0, sizeof(struct drm_fb_helper_surface_size));
@ -1890,7 +1888,6 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
if (preferred_bpp != sizes.surface_bpp)
sizes.surface_depth = sizes.surface_bpp = preferred_bpp;
/* first up get a count of crtcs now in use and new min/maxes width/heights */
drm_fb_helper_for_each_connector(fb_helper, i) {
struct drm_fb_helper_connector *fb_helper_conn = fb_helper->connector_info[i];
struct drm_cmdline_mode *cmdline_mode;
@ -1970,6 +1967,7 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
sizes.surface_depth = best_depth;
}
/* first up get a count of crtcs now in use and new min/maxes width/heights */
crtc_count = 0;
for (i = 0; i < fb_helper->crtc_count; i++) {
struct drm_display_mode *desired_mode;
@ -1992,9 +1990,6 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
x = fb_helper->crtc_info[i].x;
y = fb_helper->crtc_info[i].y;
if (gamma_size == 0)
gamma_size = fb_helper->crtc_info[i].mode_set.crtc->gamma_size;
sizes.surface_width = max_t(u32, desired_mode->hdisplay + x, sizes.surface_width);
sizes.surface_height = max_t(u32, desired_mode->vdisplay + y, sizes.surface_height);
@ -3317,8 +3312,6 @@ int drm_fbdev_generic_setup(struct drm_device *dev, unsigned int preferred_bpp)
return ret;
}
drm_client_add(&fb_helper->client);
if (!preferred_bpp)
preferred_bpp = dev->mode_config.preferred_depth;
if (!preferred_bpp)
@ -3329,6 +3322,8 @@ int drm_fbdev_generic_setup(struct drm_device *dev, unsigned int preferred_bpp)
if (ret)
DRM_DEV_DEBUG(dev->dev, "client hotplug ret=%d\n", ret);
drm_client_add(&fb_helper->client);
return 0;
}
EXPORT_SYMBOL(drm_fbdev_generic_setup);

2
drivers/gpu/drm/drm_gem_shmem_helper.c
View File

@ -408,7 +408,7 @@ static vm_fault_t drm_gem_shmem_fault(struct vm_fault *vmf)
loff_t num_pages = obj->size >> PAGE_SHIFT;
struct page *page;
if (vmf->pgoff > num_pages || WARN_ON_ONCE(!shmem->pages))
if (vmf->pgoff >= num_pages || WARN_ON_ONCE(!shmem->pages))
return VM_FAULT_SIGBUS;
page = shmem->pages[vmf->pgoff];

8
drivers/gpu/drm/drm_internal.h
View File

@ -180,12 +180,20 @@ int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private);
int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private);
int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private);
int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private);
int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private);
int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private);
int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private);
int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private);
int drm_syncobj_query_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private);
/* drm_framebuffer.c */
void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent,

8
drivers/gpu/drm/drm_ioctl.c
View File

@ -686,12 +686,20 @@ static const struct drm_ioctl_desc drm_ioctls[] = {
DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE, drm_syncobj_fd_to_handle_ioctl,
DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_TRANSFER, drm_syncobj_transfer_ioctl,
DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_WAIT, drm_syncobj_wait_ioctl,
DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_TIMELINE_WAIT, drm_syncobj_timeline_wait_ioctl,
DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_RESET, drm_syncobj_reset_ioctl,
DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_SIGNAL, drm_syncobj_signal_ioctl,
DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_TIMELINE_SIGNAL, drm_syncobj_timeline_signal_ioctl,
DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_QUERY, drm_syncobj_query_ioctl,
DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_CRTC_GET_SEQUENCE, drm_crtc_get_sequence_ioctl, DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_CRTC_QUEUE_SEQUENCE, drm_crtc_queue_sequence_ioctl, DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_LEASE, drm_mode_create_lease_ioctl, DRM_MASTER|DRM_UNLOCKED),

7
drivers/gpu/drm/drm_memory.c
View File

@ -168,6 +168,13 @@ bool drm_need_swiotlb(int dma_bits)
if (xen_pv_domain())
return true;
/*
* Enforce dma_alloc_coherent when memory encryption is active as well
* for the same reasons as for Xen paravirtual hosts.
*/
if (mem_encrypt_active())
return true;
for (tmp = iomem_resource.child; tmp; tmp = tmp->sibling) {
max_iomem = max(max_iomem, tmp->end);
}

28
drivers/gpu/drm/drm_print.c
View File

@ -253,3 +253,31 @@ void drm_err(const char *format, ...)
va_end(args);
}
EXPORT_SYMBOL(drm_err);
/**
* drm_print_regset32 - print the contents of registers to a
* &drm_printer stream.
*
* @p: the &drm printer
* @regset: the list of registers to print.
*
* Often in driver debug, it's useful to be able to either capture the
* contents of registers in the steady state using debugfs or at
* specific points during operation. This lets the driver have a
* single list of registers for both.
*/
void drm_print_regset32(struct drm_printer *p, struct debugfs_regset32 *regset)
{
int namelen = 0;
int i;
for (i = 0; i < regset->nregs; i++)
namelen = max(namelen, (int)strlen(regset->regs[i].name));
for (i = 0; i < regset->nregs; i++) {
drm_printf(p, "%*s = 0x%08x\n",
namelen, regset->regs[i].name,
readl(regset->base + regset->regs[i].offset));
}
}
EXPORT_SYMBOL(drm_print_regset32);

446
drivers/gpu/drm/drm_syncobj.c
View File

@ -61,6 +61,7 @@ struct syncobj_wait_entry {
struct task_struct *task;
struct dma_fence *fence;
struct dma_fence_cb fence_cb;
u64 point;
};
static void syncobj_wait_syncobj_func(struct drm_syncobj *syncobj,
@ -95,6 +96,8 @@ EXPORT_SYMBOL(drm_syncobj_find);
static void drm_syncobj_fence_add_wait(struct drm_syncobj *syncobj,
struct syncobj_wait_entry *wait)
{
struct dma_fence *fence;
if (wait->fence)
return;
@ -103,11 +106,15 @@ static void drm_syncobj_fence_add_wait(struct drm_syncobj *syncobj,
* have the lock, try one more time just to be sure we don't add a
* callback when a fence has already been set.
*/
if (syncobj->fence)
wait->fence = dma_fence_get(
rcu_dereference_protected(syncobj->fence, 1));
else
fence = dma_fence_get(rcu_dereference_protected(syncobj->fence, 1));
if (!fence || dma_fence_chain_find_seqno(&fence, wait->point)) {
dma_fence_put(fence);
list_add_tail(&wait->node, &syncobj->cb_list);
} else if (!fence) {
wait->fence = dma_fence_get_stub();
} else {
wait->fence = fence;
}
spin_unlock(&syncobj->lock);
}
@ -122,6 +129,44 @@ static void drm_syncobj_remove_wait(struct drm_syncobj *syncobj,
spin_unlock(&syncobj->lock);
}
/**
* drm_syncobj_add_point - add new timeline point to the syncobj
* @syncobj: sync object to add timeline point do
* @chain: chain node to use to add the point
* @fence: fence to encapsulate in the chain node
* @point: sequence number to use for the point
*
* Add the chain node as new timeline point to the syncobj.
*/
void drm_syncobj_add_point(struct drm_syncobj *syncobj,
struct dma_fence_chain *chain,
struct dma_fence *fence,
uint64_t point)
{
struct syncobj_wait_entry *cur, *tmp;
struct dma_fence *prev;
dma_fence_get(fence);
spin_lock(&syncobj->lock);
prev = drm_syncobj_fence_get(syncobj);
/* You are adding an unorder point to timeline, which could cause payload returned from query_ioctl is 0! */
if (prev && prev->seqno >= point)
DRM_ERROR("You are adding an unorder point to timeline!\n");
dma_fence_chain_init(chain, prev, fence, point);
rcu_assign_pointer(syncobj->fence, &chain->base);
list_for_each_entry_safe(cur, tmp, &syncobj->cb_list, node)
syncobj_wait_syncobj_func(syncobj, cur);
spin_unlock(&syncobj->lock);
/* Walk the chain once to trigger garbage collection */
dma_fence_chain_for_each(fence, prev);
dma_fence_put(prev);
}
EXPORT_SYMBOL(drm_syncobj_add_point);
/**
* drm_syncobj_replace_fence - replace fence in a sync object.
* @syncobj: Sync object to replace fence in
@ -145,10 +190,8 @@ void drm_syncobj_replace_fence(struct drm_syncobj *syncobj,
rcu_assign_pointer(syncobj->fence, fence);
if (fence != old_fence) {
list_for_each_entry_safe(cur, tmp, &syncobj->cb_list, node) {
list_del_init(&cur->node);
list_for_each_entry_safe(cur, tmp, &syncobj->cb_list, node)
syncobj_wait_syncobj_func(syncobj, cur);
}
}
spin_unlock(&syncobj->lock);
@ -171,6 +214,8 @@ static void drm_syncobj_assign_null_handle(struct drm_syncobj *syncobj)
dma_fence_put(fence);
}
/* 5s default for wait submission */
#define DRM_SYNCOBJ_WAIT_FOR_SUBMIT_TIMEOUT 5000000000ULL
/**
* drm_syncobj_find_fence - lookup and reference the fence in a sync object
* @file_private: drm file private pointer
@ -191,16 +236,58 @@ int drm_syncobj_find_fence(struct drm_file *file_private,
struct dma_fence **fence)
{
struct drm_syncobj *syncobj = drm_syncobj_find(file_private, handle);
int ret = 0;
struct syncobj_wait_entry wait;
u64 timeout = nsecs_to_jiffies64(DRM_SYNCOBJ_WAIT_FOR_SUBMIT_TIMEOUT);
int ret;
if (!syncobj)
return -ENOENT;
*fence = drm_syncobj_fence_get(syncobj);
if (!*fence) {
drm_syncobj_put(syncobj);
if (*fence) {
ret = dma_fence_chain_find_seqno(fence, point);
if (!ret)
return 0;
dma_fence_put(*fence);
} else {
ret = -EINVAL;
}
drm_syncobj_put(syncobj);
if (!(flags & DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT))
return ret;
memset(&wait, 0, sizeof(wait));
wait.task = current;
wait.point = point;
drm_syncobj_fence_add_wait(syncobj, &wait);
do {
set_current_state(TASK_INTERRUPTIBLE);
if (wait.fence) {
ret = 0;
break;
}
if (timeout == 0) {
ret = -ETIME;
break;
}
if (signal_pending(current)) {
ret = -ERESTARTSYS;
break;
}
timeout = schedule_timeout(timeout);
} while (1);
__set_current_state(TASK_RUNNING);
*fence = wait.fence;
if (wait.node.next)
drm_syncobj_remove_wait(syncobj, &wait);
return ret;
}
EXPORT_SYMBOL(drm_syncobj_find_fence);
@ -593,6 +680,80 @@ drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data,
&args->handle);
}
static int drm_syncobj_transfer_to_timeline(struct drm_file *file_private,
struct drm_syncobj_transfer *args)
{
struct drm_syncobj *timeline_syncobj = NULL;
struct dma_fence *fence;
struct dma_fence_chain *chain;
int ret;
timeline_syncobj = drm_syncobj_find(file_private, args->dst_handle);
if (!timeline_syncobj) {
return -ENOENT;
}
ret = drm_syncobj_find_fence(file_private, args->src_handle,
args->src_point, args->flags,
&fence);
if (ret)
goto err;
chain = kzalloc(sizeof(struct dma_fence_chain), GFP_KERNEL);
if (!chain) {
ret = -ENOMEM;
goto err1;
}
drm_syncobj_add_point(timeline_syncobj, chain, fence, args->dst_point);
err1:
dma_fence_put(fence);
err:
drm_syncobj_put(timeline_syncobj);
return ret;
}
static int
drm_syncobj_transfer_to_binary(struct drm_file *file_private,
struct drm_syncobj_transfer *args)
{
struct drm_syncobj *binary_syncobj = NULL;
struct dma_fence *fence;
int ret;
binary_syncobj = drm_syncobj_find(file_private, args->dst_handle);
if (!binary_syncobj)
return -ENOENT;
ret = drm_syncobj_find_fence(file_private, args->src_handle,
args->src_point, args->flags, &fence);
if (ret)
goto err;
drm_syncobj_replace_fence(binary_syncobj, fence);
dma_fence_put(fence);
err:
drm_syncobj_put(binary_syncobj);
return ret;
}
int
drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private)
{
struct drm_syncobj_transfer *args = data;
int ret;
if (!drm_core_check_feature(dev, DRIVER_SYNCOBJ))
return -ENODEV;
if (args->pad)
return -EINVAL;
if (args->dst_point)
ret = drm_syncobj_transfer_to_timeline(file_private, args);
else
ret = drm_syncobj_transfer_to_binary(file_private, args);
return ret;
}
static void syncobj_wait_fence_func(struct dma_fence *fence,
struct dma_fence_cb *cb)
{
@ -605,13 +766,27 @@ static void syncobj_wait_fence_func(struct dma_fence *fence,
static void syncobj_wait_syncobj_func(struct drm_syncobj *syncobj,
struct syncobj_wait_entry *wait)
{
struct dma_fence *fence;
/* This happens inside the syncobj lock */
wait->fence = dma_fence_get(rcu_dereference_protected(syncobj->fence,
lockdep_is_held(&syncobj->lock)));
fence = rcu_dereference_protected(syncobj->fence,
lockdep_is_held(&syncobj->lock));
dma_fence_get(fence);
if (!fence || dma_fence_chain_find_seqno(&fence, wait->point)) {
dma_fence_put(fence);
return;
} else if (!fence) {
wait->fence = dma_fence_get_stub();
} else {
wait->fence = fence;
}
wake_up_process(wait->task);
list_del_init(&wait->node);
}
static signed long drm_syncobj_array_wait_timeout(struct drm_syncobj **syncobjs,
void __user *user_points,
uint32_t count,
uint32_t flags,
signed long timeout,
@ -619,12 +794,27 @@ static signed long drm_syncobj_array_wait_timeout(struct drm_syncobj **syncobjs,
{
struct syncobj_wait_entry *entries;
struct dma_fence *fence;
uint64_t *points;
uint32_t signaled_count, i;
entries = kcalloc(count, sizeof(*entries), GFP_KERNEL);
if (!entries)
points = kmalloc_array(count, sizeof(*points), GFP_KERNEL);
if (points == NULL)
return -ENOMEM;
if (!user_points) {
memset(points, 0, count * sizeof(uint64_t));
} else if (copy_from_user(points, user_points,
sizeof(uint64_t) * count)) {
timeout = -EFAULT;
goto err_free_points;
}
entries = kcalloc(count, sizeof(*entries), GFP_KERNEL);
if (!entries) {
timeout = -ENOMEM;
goto err_free_points;
}
/* Walk the list of sync objects and initialize entries. We do
* this up-front so that we can properly return -EINVAL if there is
* a syncobj with a missing fence and then never have the chance of
@ -632,9 +822,13 @@ static signed long drm_syncobj_array_wait_timeout(struct drm_syncobj **syncobjs,
*/
signaled_count = 0;
for (i = 0; i < count; ++i) {
struct dma_fence *fence;
entries[i].task = current;
entries[i].fence = drm_syncobj_fence_get(syncobjs[i]);
if (!entries[i].fence) {
entries[i].point = points[i];
fence = drm_syncobj_fence_get(syncobjs[i]);
if (!fence || dma_fence_chain_find_seqno(&fence, points[i])) {
dma_fence_put(fence);
if (flags & DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT) {
continue;
} else {
@ -643,7 +837,13 @@ static signed long drm_syncobj_array_wait_timeout(struct drm_syncobj **syncobjs,
}
}
if (dma_fence_is_signaled(entries[i].fence)) {
if (fence)
entries[i].fence = fence;
else
entries[i].fence = dma_fence_get_stub();
if ((flags & DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE) ||
dma_fence_is_signaled(entries[i].fence)) {
if (signaled_count == 0 && idx)
*idx = i;
signaled_count++;
@ -676,7 +876,8 @@ static signed long drm_syncobj_array_wait_timeout(struct drm_syncobj **syncobjs,
if (!fence)
continue;
if (dma_fence_is_signaled(fence) ||
if ((flags & DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE) ||
dma_fence_is_signaled(fence) ||
(!entries[i].fence_cb.func &&
dma_fence_add_callback(fence,
&entries[i].fence_cb,
@ -721,6 +922,9 @@ cleanup_entries:
}
kfree(entries);
err_free_points:
kfree(points);
return timeout;
}
@ -760,19 +964,33 @@ EXPORT_SYMBOL(drm_timeout_abs_to_jiffies);
static int drm_syncobj_array_wait(struct drm_device *dev,
struct drm_file *file_private,
struct drm_syncobj_wait *wait,
struct drm_syncobj **syncobjs)
struct drm_syncobj_timeline_wait *timeline_wait,
struct drm_syncobj **syncobjs, bool timeline)
{
signed long timeout = drm_timeout_abs_to_jiffies(wait->timeout_nsec);
signed long timeout = 0;
uint32_t first = ~0;
timeout = drm_syncobj_array_wait_timeout(syncobjs,
wait->count_handles,
wait->flags,
timeout, &first);
if (timeout < 0)
return timeout;
wait->first_signaled = first;
if (!timeline) {
timeout = drm_timeout_abs_to_jiffies(wait->timeout_nsec);
timeout = drm_syncobj_array_wait_timeout(syncobjs,
NULL,
wait->count_handles,
wait->flags,
timeout, &first);
if (timeout < 0)
return timeout;
wait->first_signaled = first;
} else {
timeout = drm_timeout_abs_to_jiffies(timeline_wait->timeout_nsec);
timeout = drm_syncobj_array_wait_timeout(syncobjs,
u64_to_user_ptr(timeline_wait->points),
timeline_wait->count_handles,
timeline_wait->flags,
timeout, &first);
if (timeout < 0)
return timeout;
timeline_wait->first_signaled = first;
}
return 0;
}
@ -858,13 +1076,48 @@ drm_syncobj_wait_ioctl(struct drm_device *dev, void *data,
return ret;
ret = drm_syncobj_array_wait(dev, file_private,
args, syncobjs);
args, NULL, syncobjs, false);
drm_syncobj_array_free(syncobjs, args->count_handles);
return ret;
}
int
drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private)
{
struct drm_syncobj_timeline_wait *args = data;
struct drm_syncobj **syncobjs;
int ret = 0;
if (!drm_core_check_feature(dev, DRIVER_SYNCOBJ))
return -ENODEV;
if (args->flags & ~(DRM_SYNCOBJ_WAIT_FLAGS_WAIT_ALL |
DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT |
DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE))
return -EINVAL;
if (args->count_handles == 0)
return -EINVAL;
ret = drm_syncobj_array_find(file_private,
u64_to_user_ptr(args->handles),
args->count_handles,
&syncobjs);
if (ret < 0)
return ret;
ret = drm_syncobj_array_wait(dev, file_private,
NULL, args, syncobjs, true);
drm_syncobj_array_free(syncobjs, args->count_handles);
return ret;
}
int
drm_syncobj_reset_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private)
@ -930,3 +1183,138 @@ drm_syncobj_signal_ioctl(struct drm_device *dev, void *data,
return ret;
}
int
drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private)
{
struct drm_syncobj_timeline_array *args = data;
struct drm_syncobj **syncobjs;
struct dma_fence_chain **chains;
uint64_t *points;
uint32_t i, j;
int ret;
if (!drm_core_check_feature(dev, DRIVER_SYNCOBJ))
return -EOPNOTSUPP;
if (args->pad != 0)
return -EINVAL;
if (args->count_handles == 0)
return -EINVAL;
ret = drm_syncobj_array_find(file_private,
u64_to_user_ptr(args->handles),
args->count_handles,
&syncobjs);
if (ret < 0)
return ret;
points = kmalloc_array(args->count_handles, sizeof(*points),
GFP_KERNEL);
if (!points) {
ret = -ENOMEM;
goto out;
}
if (!u64_to_user_ptr(args->points)) {
memset(points, 0, args->count_handles * sizeof(uint64_t));
} else if (copy_from_user(points, u64_to_user_ptr(args->points),
sizeof(uint64_t) * args->count_handles)) {
ret = -EFAULT;
goto err_points;
}
chains = kmalloc_array(args->count_handles, sizeof(void *), GFP_KERNEL);
if (!chains) {
ret = -ENOMEM;
goto err_points;
}
for (i = 0; i < args->count_handles; i++) {
chains[i] = kzalloc(sizeof(struct dma_fence_chain), GFP_KERNEL);
if (!chains[i]) {
for (j = 0; j < i; j++)
kfree(chains[j]);
ret = -ENOMEM;
goto err_chains;
}
}
for (i = 0; i < args->count_handles; i++) {
struct dma_fence *fence = dma_fence_get_stub();
drm_syncobj_add_point(syncobjs[i], chains[i],
fence, points[i]);
dma_fence_put(fence);
}
err_chains:
kfree(chains);
err_points:
kfree(points);
out:
drm_syncobj_array_free(syncobjs, args->count_handles);
return ret;
}
int drm_syncobj_query_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private)
{
struct drm_syncobj_timeline_array *args = data;
struct drm_syncobj **syncobjs;
uint64_t __user *points = u64_to_user_ptr(args->points);
uint32_t i;
int ret;
if (!drm_core_check_feature(dev, DRIVER_SYNCOBJ))
return -ENODEV;
if (args->pad != 0)
return -EINVAL;
if (args->count_handles == 0)
return -EINVAL;
ret = drm_syncobj_array_find(file_private,
u64_to_user_ptr(args->handles),
args->count_handles,
&syncobjs);
if (ret < 0)
return ret;
for (i = 0; i < args->count_handles; i++) {
struct dma_fence_chain *chain;
struct dma_fence *fence;
uint64_t point;
fence = drm_syncobj_fence_get(syncobjs[i]);
chain = to_dma_fence_chain(fence);
if (chain) {
struct dma_fence *iter, *last_signaled = NULL;
dma_fence_chain_for_each(iter, fence) {
if (!iter)
break;
dma_fence_put(last_signaled);
last_signaled = dma_fence_get(iter);
if (!to_dma_fence_chain(last_signaled)->prev_seqno)
/* It is most likely that timeline has
* unorder points. */
break;
}
point = dma_fence_is_signaled(last_signaled) ?
last_signaled->seqno :
to_dma_fence_chain(last_signaled)->prev_seqno;
dma_fence_put(last_signaled);
} else {
point = 0;
}
ret = copy_to_user(&points[i], &point, sizeof(uint64_t));
ret = ret ? -EFAULT : 0;
if (ret)
break;
}
drm_syncobj_array_free(syncobjs, args->count_handles);
return ret;
}

10
drivers/gpu/drm/lima/Kconfig Normal file
View File

@ -0,0 +1,10 @@
# SPDX-License-Identifier: GPL-2.0 OR MIT
# Copyright 2017-2019 Qiang Yu <yuq825@gmail.com>
config DRM_LIMA
tristate "LIMA (DRM support for ARM Mali 400/450 GPU)"
depends on DRM
depends on ARM || ARM64 || COMPILE_TEST
select DRM_SCHED
help
DRM driver for ARM Mali 400/450 GPUs.

21
drivers/gpu/drm/lima/Makefile Normal file
View File

@ -0,0 +1,21 @@
# SPDX-License-Identifier: GPL-2.0 OR MIT
# Copyright 2017-2019 Qiang Yu <yuq825@gmail.com>
lima-y := \
lima_drv.o \
lima_device.o \
lima_pmu.o \
lima_l2_cache.o \
lima_mmu.o \
lima_gp.o \
lima_pp.o \
lima_gem.o \
lima_vm.o \
lima_sched.o \
lima_ctx.o \
lima_gem_prime.o \
lima_dlbu.o \
lima_bcast.o \
lima_object.o
obj-$(CONFIG_DRM_LIMA) += lima.o

47
drivers/gpu/drm/lima/lima_bcast.c Normal file
View File

@ -0,0 +1,47 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/io.h>
#include <linux/device.h>
#include "lima_device.h"
#include "lima_bcast.h"
#include "lima_regs.h"
#define bcast_write(reg, data) writel(data, ip->iomem + reg)
#define bcast_read(reg) readl(ip->iomem + reg)
void lima_bcast_enable(struct lima_device *dev, int num_pp)
{
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
struct lima_ip *ip = dev->ip + lima_ip_bcast;
int i, mask = bcast_read(LIMA_BCAST_BROADCAST_MASK) & 0xffff0000;
for (i = 0; i < num_pp; i++) {
struct lima_ip *pp = pipe->processor[i];
mask |= 1 << (pp->id - lima_ip_pp0);
}
bcast_write(LIMA_BCAST_BROADCAST_MASK, mask);
}
int lima_bcast_init(struct lima_ip *ip)
{
int i, mask = 0;
for (i = lima_ip_pp0; i <= lima_ip_pp7; i++) {
if (ip->dev->ip[i].present)
mask |= 1 << (i - lima_ip_pp0);
}
bcast_write(LIMA_BCAST_BROADCAST_MASK, mask << 16);
bcast_write(LIMA_BCAST_INTERRUPT_MASK, mask);
return 0;
}
void lima_bcast_fini(struct lima_ip *ip)
{
}

14
drivers/gpu/drm/lima/lima_bcast.h Normal file
View File

@ -0,0 +1,14 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_BCAST_H__
#define __LIMA_BCAST_H__
struct lima_ip;
int lima_bcast_init(struct lima_ip *ip);
void lima_bcast_fini(struct lima_ip *ip);
void lima_bcast_enable(struct lima_device *dev, int num_pp);
#endif

98
drivers/gpu/drm/lima/lima_ctx.c Normal file
View File

@ -0,0 +1,98 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/slab.h>
#include "lima_device.h"
#include "lima_ctx.h"
int lima_ctx_create(struct lima_device *dev, struct lima_ctx_mgr *mgr, u32 *id)
{
struct lima_ctx *ctx;
int i, err;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
ctx->dev = dev;
kref_init(&ctx->refcnt);
for (i = 0; i < lima_pipe_num; i++) {
err = lima_sched_context_init(dev->pipe + i, ctx->context + i, &ctx->guilty);
if (err)
goto err_out0;
}
err = xa_alloc(&mgr->handles, id, ctx, xa_limit_32b, GFP_KERNEL);
if (err < 0)
goto err_out0;
return 0;
err_out0:
for (i--; i >= 0; i--)
lima_sched_context_fini(dev->pipe + i, ctx->context + i);
kfree(ctx);
return err;
}
static void lima_ctx_do_release(struct kref *ref)
{
struct lima_ctx *ctx = container_of(ref, struct lima_ctx, refcnt);
int i;
for (i = 0; i < lima_pipe_num; i++)
lima_sched_context_fini(ctx->dev->pipe + i, ctx->context + i);
kfree(ctx);
}
int lima_ctx_free(struct lima_ctx_mgr *mgr, u32 id)
{
struct lima_ctx *ctx;
int ret = 0;
mutex_lock(&mgr->lock);
ctx = xa_erase(&mgr->handles, id);
if (ctx)
kref_put(&ctx->refcnt, lima_ctx_do_release);
else
ret = -EINVAL;
mutex_unlock(&mgr->lock);
return ret;
}
struct lima_ctx *lima_ctx_get(struct lima_ctx_mgr *mgr, u32 id)
{
struct lima_ctx *ctx;
mutex_lock(&mgr->lock);
ctx = xa_load(&mgr->handles, id);
if (ctx)
kref_get(&ctx->refcnt);
mutex_unlock(&mgr->lock);
return ctx;
}
void lima_ctx_put(struct lima_ctx *ctx)
{
kref_put(&ctx->refcnt, lima_ctx_do_release);
}
void lima_ctx_mgr_init(struct lima_ctx_mgr *mgr)
{
mutex_init(&mgr->lock);
xa_init_flags(&mgr->handles, XA_FLAGS_ALLOC);
}
void lima_ctx_mgr_fini(struct lima_ctx_mgr *mgr)
{
struct lima_ctx *ctx;
unsigned long id;
xa_for_each(&mgr->handles, id, ctx) {
kref_put(&ctx->refcnt, lima_ctx_do_release);
}
xa_destroy(&mgr->handles);
mutex_destroy(&mgr->lock);
}

30
drivers/gpu/drm/lima/lima_ctx.h Normal file
View File

@ -0,0 +1,30 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_CTX_H__
#define __LIMA_CTX_H__
#include <linux/xarray.h>
#include "lima_device.h"
struct lima_ctx {
struct kref refcnt;
struct lima_device *dev;
struct lima_sched_context context[lima_pipe_num];
atomic_t guilty;
};
struct lima_ctx_mgr {
struct mutex lock;
struct xarray handles;
};
int lima_ctx_create(struct lima_device *dev, struct lima_ctx_mgr *mgr, u32 *id);
int lima_ctx_free(struct lima_ctx_mgr *mgr, u32 id);
struct lima_ctx *lima_ctx_get(struct lima_ctx_mgr *mgr, u32 id);
void lima_ctx_put(struct lima_ctx *ctx);
void lima_ctx_mgr_init(struct lima_ctx_mgr *mgr);
void lima_ctx_mgr_fini(struct lima_ctx_mgr *mgr);
#endif

385
drivers/gpu/drm/lima/lima_device.c Normal file
View File

@ -0,0 +1,385 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/regulator/consumer.h>
#include <linux/reset.h>
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include "lima_device.h"
#include "lima_gp.h"
#include "lima_pp.h"
#include "lima_mmu.h"
#include "lima_pmu.h"
#include "lima_l2_cache.h"
#include "lima_dlbu.h"
#include "lima_bcast.h"
#include "lima_vm.h"
struct lima_ip_desc {
char *name;
char *irq_name;
bool must_have[lima_gpu_num];
int offset[lima_gpu_num];
int (*init)(struct lima_ip *ip);
void (*fini)(struct lima_ip *ip);
};
#define LIMA_IP_DESC(ipname, mst0, mst1, off0, off1, func, irq) \
[lima_ip_##ipname] = { \
.name = #ipname, \
.irq_name = irq, \
.must_have = { \
[lima_gpu_mali400] = mst0, \
[lima_gpu_mali450] = mst1, \
}, \
.offset = { \
[lima_gpu_mali400] = off0, \
[lima_gpu_mali450] = off1, \
}, \
.init = lima_##func##_init, \
.fini = lima_##func##_fini, \
}
static struct lima_ip_desc lima_ip_desc[lima_ip_num] = {
LIMA_IP_DESC(pmu, false, false, 0x02000, 0x02000, pmu, "pmu"),
LIMA_IP_DESC(l2_cache0, true, true, 0x01000, 0x10000, l2_cache, NULL),
LIMA_IP_DESC(l2_cache1, false, true, -1, 0x01000, l2_cache, NULL),
LIMA_IP_DESC(l2_cache2, false, false, -1, 0x11000, l2_cache, NULL),
LIMA_IP_DESC(gp, true, true, 0x00000, 0x00000, gp, "gp"),
LIMA_IP_DESC(pp0, true, true, 0x08000, 0x08000, pp, "pp0"),
LIMA_IP_DESC(pp1, false, false, 0x0A000, 0x0A000, pp, "pp1"),
LIMA_IP_DESC(pp2, false, false, 0x0C000, 0x0C000, pp, "pp2"),
LIMA_IP_DESC(pp3, false, false, 0x0E000, 0x0E000, pp, "pp3"),
LIMA_IP_DESC(pp4, false, false, -1, 0x28000, pp, "pp4"),
LIMA_IP_DESC(pp5, false, false, -1, 0x2A000, pp, "pp5"),
LIMA_IP_DESC(pp6, false, false, -1, 0x2C000, pp, "pp6"),
LIMA_IP_DESC(pp7, false, false, -1, 0x2E000, pp, "pp7"),
LIMA_IP_DESC(gpmmu, true, true, 0x03000, 0x03000, mmu, "gpmmu"),
LIMA_IP_DESC(ppmmu0, true, true, 0x04000, 0x04000, mmu, "ppmmu0"),
LIMA_IP_DESC(ppmmu1, false, false, 0x05000, 0x05000, mmu, "ppmmu1"),
LIMA_IP_DESC(ppmmu2, false, false, 0x06000, 0x06000, mmu, "ppmmu2"),
LIMA_IP_DESC(ppmmu3, false, false, 0x07000, 0x07000, mmu, "ppmmu3"),
LIMA_IP_DESC(ppmmu4, false, false, -1, 0x1C000, mmu, "ppmmu4"),
LIMA_IP_DESC(ppmmu5, false, false, -1, 0x1D000, mmu, "ppmmu5"),
LIMA_IP_DESC(ppmmu6, false, false, -1, 0x1E000, mmu, "ppmmu6"),
LIMA_IP_DESC(ppmmu7, false, false, -1, 0x1F000, mmu, "ppmmu7"),
LIMA_IP_DESC(dlbu, false, true, -1, 0x14000, dlbu, NULL),
LIMA_IP_DESC(bcast, false, true, -1, 0x13000, bcast, NULL),
LIMA_IP_DESC(pp_bcast, false, true, -1, 0x16000, pp_bcast, "pp"),
LIMA_IP_DESC(ppmmu_bcast, false, true, -1, 0x15000, mmu, NULL),
};
const char *lima_ip_name(struct lima_ip *ip)
{
return lima_ip_desc[ip->id].name;
}
static int lima_clk_init(struct lima_device *dev)
{
int err;
unsigned long bus_rate, gpu_rate;
dev->clk_bus = devm_clk_get(dev->dev, "bus");
if (IS_ERR(dev->clk_bus)) {
dev_err(dev->dev, "get bus clk failed %ld\n", PTR_ERR(dev->clk_bus));
return PTR_ERR(dev->clk_bus);
}
dev->clk_gpu = devm_clk_get(dev->dev, "core");
if (IS_ERR(dev->clk_gpu)) {
dev_err(dev->dev, "get core clk failed %ld\n", PTR_ERR(dev->clk_gpu));
return PTR_ERR(dev->clk_gpu);
}
bus_rate = clk_get_rate(dev->clk_bus);
dev_info(dev->dev, "bus rate = %lu\n", bus_rate);
gpu_rate = clk_get_rate(dev->clk_gpu);
dev_info(dev->dev, "mod rate = %lu", gpu_rate);
err = clk_prepare_enable(dev->clk_bus);
if (err)
return err;
err = clk_prepare_enable(dev->clk_gpu);
if (err)
goto error_out0;
dev->reset = devm_reset_control_get_optional(dev->dev, NULL);
if (IS_ERR(dev->reset)) {
err = PTR_ERR(dev->reset);
goto error_out1;
} else if (dev->reset != NULL) {
err = reset_control_deassert(dev->reset);
if (err)
goto error_out1;
}
return 0;
error_out1:
clk_disable_unprepare(dev->clk_gpu);
error_out0:
clk_disable_unprepare(dev->clk_bus);
return err;
}
static void lima_clk_fini(struct lima_device *dev)
{
if (dev->reset != NULL)
reset_control_assert(dev->reset);
clk_disable_unprepare(dev->clk_gpu);
clk_disable_unprepare(dev->clk_bus);
}
static int lima_regulator_init(struct lima_device *dev)
{
int ret;
dev->regulator = devm_regulator_get_optional(dev->dev, "mali");
if (IS_ERR(dev->regulator)) {
ret = PTR_ERR(dev->regulator);
dev->regulator = NULL;
if (ret == -ENODEV)
return 0;
dev_err(dev->dev, "failed to get regulator: %d\n", ret);
return ret;
}
ret = regulator_enable(dev->regulator);
if (ret < 0) {
dev_err(dev->dev, "failed to enable regulator: %d\n", ret);
return ret;
}
return 0;
}
static void lima_regulator_fini(struct lima_device *dev)
{
if (dev->regulator)
regulator_disable(dev->regulator);
}
static int lima_init_ip(struct lima_device *dev, int index)
{
struct lima_ip_desc *desc = lima_ip_desc + index;
struct lima_ip *ip = dev->ip + index;
int offset = desc->offset[dev->id];
bool must = desc->must_have[dev->id];
int err;
if (offset < 0)
return 0;
ip->dev = dev;
ip->id = index;
ip->iomem = dev->iomem + offset;
if (desc->irq_name) {
err = platform_get_irq_byname(dev->pdev, desc->irq_name);
if (err < 0)
goto out;
ip->irq = err;
}
err = desc->init(ip);
if (!err) {
ip->present = true;
return 0;
}
out:
return must ? err : 0;
}
static void lima_fini_ip(struct lima_device *ldev, int index)
{
struct lima_ip_desc *desc = lima_ip_desc + index;
struct lima_ip *ip = ldev->ip + index;
if (ip->present)
desc->fini(ip);
}
static int lima_init_gp_pipe(struct lima_device *dev)
{
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_gp;
int err;
err = lima_sched_pipe_init(pipe, "gp");
if (err)
return err;
pipe->l2_cache[pipe->num_l2_cache++] = dev->ip + lima_ip_l2_cache0;
pipe->mmu[pipe->num_mmu++] = dev->ip + lima_ip_gpmmu;
pipe->processor[pipe->num_processor++] = dev->ip + lima_ip_gp;
err = lima_gp_pipe_init(dev);
if (err) {
lima_sched_pipe_fini(pipe);
return err;
}
return 0;
}
static void lima_fini_gp_pipe(struct lima_device *dev)
{
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_gp;
lima_gp_pipe_fini(dev);
lima_sched_pipe_fini(pipe);
}
static int lima_init_pp_pipe(struct lima_device *dev)
{
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
int err, i;
err = lima_sched_pipe_init(pipe, "pp");
if (err)
return err;
for (i = 0; i < LIMA_SCHED_PIPE_MAX_PROCESSOR; i++) {
struct lima_ip *pp = dev->ip + lima_ip_pp0 + i;
struct lima_ip *ppmmu = dev->ip + lima_ip_ppmmu0 + i;
struct lima_ip *l2_cache;
if (dev->id == lima_gpu_mali400)
l2_cache = dev->ip + lima_ip_l2_cache0;
else
l2_cache = dev->ip + lima_ip_l2_cache1 + (i >> 2);
if (pp->present && ppmmu->present && l2_cache->present) {
pipe->mmu[pipe->num_mmu++] = ppmmu;
pipe->processor[pipe->num_processor++] = pp;
if (!pipe->l2_cache[i >> 2])
pipe->l2_cache[pipe->num_l2_cache++] = l2_cache;
}
}
if (dev->ip[lima_ip_bcast].present) {
pipe->bcast_processor = dev->ip + lima_ip_pp_bcast;
pipe->bcast_mmu = dev->ip + lima_ip_ppmmu_bcast;
}
err = lima_pp_pipe_init(dev);
if (err) {
lima_sched_pipe_fini(pipe);
return err;
}
return 0;
}
static void lima_fini_pp_pipe(struct lima_device *dev)
{
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
lima_pp_pipe_fini(dev);
lima_sched_pipe_fini(pipe);
}
int lima_device_init(struct lima_device *ldev)
{
int err, i;
struct resource *res;
dma_set_coherent_mask(ldev->dev, DMA_BIT_MASK(32));
err = lima_clk_init(ldev);
if (err) {
dev_err(ldev->dev, "clk init fail %d\n", err);
return err;
}
err = lima_regulator_init(ldev);
if (err) {
dev_err(ldev->dev, "regulator init fail %d\n", err);
goto err_out0;
}
ldev->empty_vm = lima_vm_create(ldev);
if (!ldev->empty_vm) {
err = -ENOMEM;
goto err_out1;
}
ldev->va_start = 0;
if (ldev->id == lima_gpu_mali450) {
ldev->va_end = LIMA_VA_RESERVE_START;
ldev->dlbu_cpu = dma_alloc_wc(
ldev->dev, LIMA_PAGE_SIZE,
&ldev->dlbu_dma, GFP_KERNEL);
if (!ldev->dlbu_cpu) {
err = -ENOMEM;
goto err_out2;
}
} else
ldev->va_end = LIMA_VA_RESERVE_END;
res = platform_get_resource(ldev->pdev, IORESOURCE_MEM, 0);
ldev->iomem = devm_ioremap_resource(ldev->dev, res);
if (IS_ERR(ldev->iomem)) {
dev_err(ldev->dev, "fail to ioremap iomem\n");
err = PTR_ERR(ldev->iomem);
goto err_out3;
}
for (i = 0; i < lima_ip_num; i++) {
err = lima_init_ip(ldev, i);
if (err)
goto err_out4;
}
err = lima_init_gp_pipe(ldev);
if (err)
goto err_out4;
err = lima_init_pp_pipe(ldev);
if (err)
goto err_out5;
return 0;
err_out5:
lima_fini_gp_pipe(ldev);
err_out4:
while (--i >= 0)
lima_fini_ip(ldev, i);
err_out3:
if (ldev->dlbu_cpu)
dma_free_wc(ldev->dev, LIMA_PAGE_SIZE,
ldev->dlbu_cpu, ldev->dlbu_dma);
err_out2:
lima_vm_put(ldev->empty_vm);
err_out1:
lima_regulator_fini(ldev);
err_out0:
lima_clk_fini(ldev);
return err;
}
void lima_device_fini(struct lima_device *ldev)
{
int i;
lima_fini_pp_pipe(ldev);
lima_fini_gp_pipe(ldev);
for (i = lima_ip_num - 1; i >= 0; i--)
lima_fini_ip(ldev, i);
if (ldev->dlbu_cpu)
dma_free_wc(ldev->dev, LIMA_PAGE_SIZE,
ldev->dlbu_cpu, ldev->dlbu_dma);
lima_vm_put(ldev->empty_vm);
lima_regulator_fini(ldev);
lima_clk_fini(ldev);
}

131
drivers/gpu/drm/lima/lima_device.h Normal file
View File

@ -0,0 +1,131 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_DEVICE_H__
#define __LIMA_DEVICE_H__
#include <drm/drm_device.h>
#include <linux/delay.h>
#include "lima_sched.h"
enum lima_gpu_id {
lima_gpu_mali400 = 0,
lima_gpu_mali450,
lima_gpu_num,
};
enum lima_ip_id {
lima_ip_pmu,
lima_ip_gpmmu,
lima_ip_ppmmu0,
lima_ip_ppmmu1,
lima_ip_ppmmu2,
lima_ip_ppmmu3,
lima_ip_ppmmu4,
lima_ip_ppmmu5,
lima_ip_ppmmu6,
lima_ip_ppmmu7,
lima_ip_gp,
lima_ip_pp0,
lima_ip_pp1,
lima_ip_pp2,
lima_ip_pp3,
lima_ip_pp4,
lima_ip_pp5,
lima_ip_pp6,
lima_ip_pp7,
lima_ip_l2_cache0,
lima_ip_l2_cache1,
lima_ip_l2_cache2,
lima_ip_dlbu,
lima_ip_bcast,
lima_ip_pp_bcast,
lima_ip_ppmmu_bcast,
lima_ip_num,
};
struct lima_device;
struct lima_ip {
struct lima_device *dev;
enum lima_ip_id id;
bool present;
void __iomem *iomem;
int irq;
union {
/* gp/pp */
bool async_reset;
/* l2 cache */
spinlock_t lock;
} data;
};
enum lima_pipe_id {
lima_pipe_gp,
lima_pipe_pp,
lima_pipe_num,
};
struct lima_device {
struct device *dev;
struct drm_device *ddev;
struct platform_device *pdev;
enum lima_gpu_id id;
u32 gp_version;
u32 pp_version;
int num_pp;
void __iomem *iomem;
struct clk *clk_bus;
struct clk *clk_gpu;
struct reset_control *reset;
struct regulator *regulator;
struct lima_ip ip[lima_ip_num];
struct lima_sched_pipe pipe[lima_pipe_num];
struct lima_vm *empty_vm;
uint64_t va_start;
uint64_t va_end;
u32 *dlbu_cpu;
dma_addr_t dlbu_dma;
};
static inline struct lima_device *
to_lima_dev(struct drm_device *dev)
{
return dev->dev_private;
}
int lima_device_init(struct lima_device *ldev);
void lima_device_fini(struct lima_device *ldev);
const char *lima_ip_name(struct lima_ip *ip);
typedef int (*lima_poll_func_t)(struct lima_ip *);
static inline int lima_poll_timeout(struct lima_ip *ip, lima_poll_func_t func,
int sleep_us, int timeout_us)
{
ktime_t timeout = ktime_add_us(ktime_get(), timeout_us);
might_sleep_if(sleep_us);
while (1) {
if (func(ip))
return 0;
if (timeout_us && ktime_compare(ktime_get(), timeout) > 0)
return -ETIMEDOUT;
if (sleep_us)
usleep_range((sleep_us >> 2) + 1, sleep_us);
}
return 0;
}
#endif

58
drivers/gpu/drm/lima/lima_dlbu.c Normal file
View File

@ -0,0 +1,58 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/io.h>
#include <linux/device.h>
#include "lima_device.h"
#include "lima_dlbu.h"
#include "lima_vm.h"
#include "lima_regs.h"
#define dlbu_write(reg, data) writel(data, ip->iomem + reg)
#define dlbu_read(reg) readl(ip->iomem + reg)
void lima_dlbu_enable(struct lima_device *dev, int num_pp)
{
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
struct lima_ip *ip = dev->ip + lima_ip_dlbu;
int i, mask = 0;
for (i = 0; i < num_pp; i++) {
struct lima_ip *pp = pipe->processor[i];
mask |= 1 << (pp->id - lima_ip_pp0);
}
dlbu_write(LIMA_DLBU_PP_ENABLE_MASK, mask);
}
void lima_dlbu_disable(struct lima_device *dev)
{
struct lima_ip *ip = dev->ip + lima_ip_dlbu;
dlbu_write(LIMA_DLBU_PP_ENABLE_MASK, 0);
}
void lima_dlbu_set_reg(struct lima_ip *ip, u32 *reg)
{
dlbu_write(LIMA_DLBU_TLLIST_VBASEADDR, reg[0]);
dlbu_write(LIMA_DLBU_FB_DIM, reg[1]);
dlbu_write(LIMA_DLBU_TLLIST_CONF, reg[2]);
dlbu_write(LIMA_DLBU_START_TILE_POS, reg[3]);
}
int lima_dlbu_init(struct lima_ip *ip)
{
struct lima_device *dev = ip->dev;
dlbu_write(LIMA_DLBU_MASTER_TLLIST_PHYS_ADDR, dev->dlbu_dma | 1);
dlbu_write(LIMA_DLBU_MASTER_TLLIST_VADDR, LIMA_VA_RESERVE_DLBU);
return 0;
}
void lima_dlbu_fini(struct lima_ip *ip)
{
}

18
drivers/gpu/drm/lima/lima_dlbu.h Normal file
View File

@ -0,0 +1,18 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_DLBU_H__
#define __LIMA_DLBU_H__
struct lima_ip;
struct lima_device;
void lima_dlbu_enable(struct lima_device *dev, int num_pp);
void lima_dlbu_disable(struct lima_device *dev);
void lima_dlbu_set_reg(struct lima_ip *ip, u32 *reg);
int lima_dlbu_init(struct lima_ip *ip);
void lima_dlbu_fini(struct lima_ip *ip);
#endif

376
drivers/gpu/drm/lima/lima_drv.c Normal file
View File

@ -0,0 +1,376 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/uaccess.h>
#include <linux/slab.h>
#include <drm/drm_ioctl.h>
#include <drm/drm_drv.h>
#include <drm/drm_prime.h>
#include <drm/lima_drm.h>
#include "lima_drv.h"
#include "lima_gem.h"
#include "lima_gem_prime.h"
#include "lima_vm.h"
int lima_sched_timeout_ms;
MODULE_PARM_DESC(sched_timeout_ms, "task run timeout in ms (0 = no timeout (default))");
module_param_named(sched_timeout_ms, lima_sched_timeout_ms, int, 0444);
static int lima_ioctl_get_param(struct drm_device *dev, void *data, struct drm_file *file)
{
struct drm_lima_get_param *args = data;
struct lima_device *ldev = to_lima_dev(dev);
if (args->pad)
return -EINVAL;
switch (args->param) {
case DRM_LIMA_PARAM_GPU_ID:
switch (ldev->id) {
case lima_gpu_mali400:
args->value = DRM_LIMA_PARAM_GPU_ID_MALI400;
break;
case lima_gpu_mali450:
args->value = DRM_LIMA_PARAM_GPU_ID_MALI450;
break;
default:
args->value = DRM_LIMA_PARAM_GPU_ID_UNKNOWN;
break;
}
break;
case DRM_LIMA_PARAM_NUM_PP:
args->value = ldev->pipe[lima_pipe_pp].num_processor;
break;
case DRM_LIMA_PARAM_GP_VERSION:
args->value = ldev->gp_version;
break;
case DRM_LIMA_PARAM_PP_VERSION:
args->value = ldev->pp_version;
break;
default:
return -EINVAL;
}
return 0;
}
static int lima_ioctl_gem_create(struct drm_device *dev, void *data, struct drm_file *file)
{
struct drm_lima_gem_create *args = data;
if (args->pad)
return -EINVAL;
if (args->flags)
return -EINVAL;
if (args->size == 0)
return -EINVAL;
return lima_gem_create_handle(dev, file, args->size, args->flags, &args->handle);
}
static int lima_ioctl_gem_info(struct drm_device *dev, void *data, struct drm_file *file)
{
struct drm_lima_gem_info *args = data;
return lima_gem_get_info(file, args->handle, &args->va, &args->offset);
}
static int lima_ioctl_gem_submit(struct drm_device *dev, void *data, struct drm_file *file)
{
struct drm_lima_gem_submit *args = data;
struct lima_device *ldev = to_lima_dev(dev);
struct lima_drm_priv *priv = file->driver_priv;
struct drm_lima_gem_submit_bo *bos;
struct lima_sched_pipe *pipe;
struct lima_sched_task *task;
struct lima_ctx *ctx;
struct lima_submit submit = {0};
size_t size;
int err = 0;
if (args->pipe >= lima_pipe_num || args->nr_bos == 0)
return -EINVAL;
if (args->flags & ~(LIMA_SUBMIT_FLAG_EXPLICIT_FENCE))
return -EINVAL;
pipe = ldev->pipe + args->pipe;
if (args->frame_size != pipe->frame_size)
return -EINVAL;
bos = kvcalloc(args->nr_bos, sizeof(*submit.bos) + sizeof(*submit.lbos), GFP_KERNEL);
if (!bos)
return -ENOMEM;
size = args->nr_bos * sizeof(*submit.bos);
if (copy_from_user(bos, u64_to_user_ptr(args->bos), size)) {
err = -EFAULT;
goto out0;
}
task = kmem_cache_zalloc(pipe->task_slab, GFP_KERNEL);
if (!task) {
err = -ENOMEM;
goto out0;
}
task->frame = task + 1;
if (copy_from_user(task->frame, u64_to_user_ptr(args->frame), args->frame_size)) {
err = -EFAULT;
goto out1;
}
err = pipe->task_validate(pipe, task);
if (err)
goto out1;
ctx = lima_ctx_get(&priv->ctx_mgr, args->ctx);
if (!ctx) {
err = -ENOENT;
goto out1;
}
submit.pipe = args->pipe;
submit.bos = bos;
submit.lbos = (void *)bos + size;
submit.nr_bos = args->nr_bos;
submit.task = task;
submit.ctx = ctx;
submit.flags = args->flags;
submit.in_sync[0] = args->in_sync[0];
submit.in_sync[1] = args->in_sync[1];
submit.out_sync = args->out_sync;
err = lima_gem_submit(file, &submit);
lima_ctx_put(ctx);
out1:
if (err)
kmem_cache_free(pipe->task_slab, task);
out0:
kvfree(bos);
return err;
}
static int lima_ioctl_gem_wait(struct drm_device *dev, void *data, struct drm_file *file)
{
struct drm_lima_gem_wait *args = data;
if (args->op & ~(LIMA_GEM_WAIT_READ|LIMA_GEM_WAIT_WRITE))
return -EINVAL;
return lima_gem_wait(file, args->handle, args->op, args->timeout_ns);
}
static int lima_ioctl_ctx_create(struct drm_device *dev, void *data, struct drm_file *file)
{
struct drm_lima_ctx_create *args = data;
struct lima_drm_priv *priv = file->driver_priv;
struct lima_device *ldev = to_lima_dev(dev);
if (args->_pad)
return -EINVAL;
return lima_ctx_create(ldev, &priv->ctx_mgr, &args->id);
}
static int lima_ioctl_ctx_free(struct drm_device *dev, void *data, struct drm_file *file)
{
struct drm_lima_ctx_create *args = data;
struct lima_drm_priv *priv = file->driver_priv;
if (args->_pad)
return -EINVAL;
return lima_ctx_free(&priv->ctx_mgr, args->id);
}
static int lima_drm_driver_open(struct drm_device *dev, struct drm_file *file)
{
int err;
struct lima_drm_priv *priv;
struct lima_device *ldev = to_lima_dev(dev);
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->vm = lima_vm_create(ldev);
if (!priv->vm) {
err = -ENOMEM;
goto err_out0;
}
lima_ctx_mgr_init(&priv->ctx_mgr);
file->driver_priv = priv;
return 0;
err_out0:
kfree(priv);
return err;
}
static void lima_drm_driver_postclose(struct drm_device *dev, struct drm_file *file)
{
struct lima_drm_priv *priv = file->driver_priv;
lima_ctx_mgr_fini(&priv->ctx_mgr);
lima_vm_put(priv->vm);
kfree(priv);
}
static const struct drm_ioctl_desc lima_drm_driver_ioctls[] = {
DRM_IOCTL_DEF_DRV(LIMA_GET_PARAM, lima_ioctl_get_param, DRM_AUTH|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(LIMA_GEM_CREATE, lima_ioctl_gem_create, DRM_AUTH|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(LIMA_GEM_INFO, lima_ioctl_gem_info, DRM_AUTH|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(LIMA_GEM_SUBMIT, lima_ioctl_gem_submit, DRM_AUTH|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(LIMA_GEM_WAIT, lima_ioctl_gem_wait, DRM_AUTH|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(LIMA_CTX_CREATE, lima_ioctl_ctx_create, DRM_AUTH|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(LIMA_CTX_FREE, lima_ioctl_ctx_free, DRM_AUTH|DRM_RENDER_ALLOW),
};
static const struct file_operations lima_drm_driver_fops = {
.owner = THIS_MODULE,
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
#endif
.mmap = lima_gem_mmap,
};
static struct drm_driver lima_drm_driver = {
.driver_features = DRIVER_RENDER | DRIVER_GEM | DRIVER_PRIME | DRIVER_SYNCOBJ,
.open = lima_drm_driver_open,
.postclose = lima_drm_driver_postclose,
.ioctls = lima_drm_driver_ioctls,
.num_ioctls = ARRAY_SIZE(lima_drm_driver_ioctls),
.fops = &lima_drm_driver_fops,
.gem_free_object_unlocked = lima_gem_free_object,
.gem_open_object = lima_gem_object_open,
.gem_close_object = lima_gem_object_close,
.gem_vm_ops = &lima_gem_vm_ops,
.name = "lima",
.desc = "lima DRM",
.date = "20190217",
.major = 1,
.minor = 0,
.patchlevel = 0,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
.gem_prime_import_sg_table = lima_gem_prime_import_sg_table,
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.gem_prime_get_sg_table = lima_gem_prime_get_sg_table,
.gem_prime_mmap = lima_gem_prime_mmap,
};
static int lima_pdev_probe(struct platform_device *pdev)
{
struct lima_device *ldev;
struct drm_device *ddev;
int err;
err = lima_sched_slab_init();
if (err)
return err;
ldev = devm_kzalloc(&pdev->dev, sizeof(*ldev), GFP_KERNEL);
if (!ldev) {
err = -ENOMEM;
goto err_out0;
}
ldev->pdev = pdev;
ldev->dev = &pdev->dev;
ldev->id = (enum lima_gpu_id)of_device_get_match_data(&pdev->dev);
platform_set_drvdata(pdev, ldev);
/* Allocate and initialize the DRM device. */
ddev = drm_dev_alloc(&lima_drm_driver, &pdev->dev);
if (IS_ERR(ddev))
return PTR_ERR(ddev);
ddev->dev_private = ldev;
ldev->ddev = ddev;
err = lima_device_init(ldev);
if (err) {
dev_err(&pdev->dev, "Fatal error during GPU init\n");
goto err_out1;
}
/*
* Register the DRM device with the core and the connectors with
* sysfs.
*/
err = drm_dev_register(ddev, 0);
if (err < 0)
goto err_out2;
return 0;
err_out2:
lima_device_fini(ldev);
err_out1:
drm_dev_put(ddev);
err_out0:
lima_sched_slab_fini();
return err;
}
static int lima_pdev_remove(struct platform_device *pdev)
{
struct lima_device *ldev = platform_get_drvdata(pdev);
struct drm_device *ddev = ldev->ddev;
drm_dev_unregister(ddev);
lima_device_fini(ldev);
drm_dev_put(ddev);
lima_sched_slab_fini();
return 0;
}
static const struct of_device_id dt_match[] = {
{ .compatible = "arm,mali-400", .data = (void *)lima_gpu_mali400 },
{ .compatible = "arm,mali-450", .data = (void *)lima_gpu_mali450 },
{}
};
MODULE_DEVICE_TABLE(of, dt_match);
static struct platform_driver lima_platform_driver = {
.probe = lima_pdev_probe,
.remove = lima_pdev_remove,
.driver = {
.name = "lima",
.of_match_table = dt_match,
},
};
static int __init lima_init(void)
{
return platform_driver_register(&lima_platform_driver);
}
module_init(lima_init);
static void __exit lima_exit(void)
{
platform_driver_unregister(&lima_platform_driver);
}
module_exit(lima_exit);
MODULE_AUTHOR("Lima Project Developers");
MODULE_DESCRIPTION("Lima DRM Driver");
MODULE_LICENSE("GPL v2");

45
drivers/gpu/drm/lima/lima_drv.h Normal file
View File

@ -0,0 +1,45 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_DRV_H__
#define __LIMA_DRV_H__
#include <drm/drm_file.h>
#include "lima_ctx.h"
extern int lima_sched_timeout_ms;
struct lima_vm;
struct lima_bo;
struct lima_sched_task;
struct drm_lima_gem_submit_bo;
struct lima_drm_priv {
struct lima_vm *vm;
struct lima_ctx_mgr ctx_mgr;
};
struct lima_submit {
struct lima_ctx *ctx;
int pipe;
u32 flags;
struct drm_lima_gem_submit_bo *bos;
struct lima_bo **lbos;
u32 nr_bos;
u32 in_sync[2];
u32 out_sync;
struct lima_sched_task *task;
};
static inline struct lima_drm_priv *
to_lima_drm_priv(struct drm_file *file)
{
return file->driver_priv;
}
#endif

381
drivers/gpu/drm/lima/lima_gem.c Normal file
View File

@ -0,0 +1,381 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/sync_file.h>
#include <linux/pfn_t.h>
#include <drm/drm_file.h>
#include <drm/drm_syncobj.h>
#include <drm/drm_utils.h>
#include <drm/lima_drm.h>
#include "lima_drv.h"
#include "lima_gem.h"
#include "lima_gem_prime.h"
#include "lima_vm.h"
#include "lima_object.h"
int lima_gem_create_handle(struct drm_device *dev, struct drm_file *file,
u32 size, u32 flags, u32 *handle)
{
int err;
struct lima_bo *bo;
struct lima_device *ldev = to_lima_dev(dev);
bo = lima_bo_create(ldev, size, flags, NULL, NULL);
if (IS_ERR(bo))
return PTR_ERR(bo);
err = drm_gem_handle_create(file, &bo->gem, handle);
/* drop reference from allocate - handle holds it now */
drm_gem_object_put_unlocked(&bo->gem);
return err;
}
void lima_gem_free_object(struct drm_gem_object *obj)
{
struct lima_bo *bo = to_lima_bo(obj);
if (!list_empty(&bo->va))
dev_err(obj->dev->dev, "lima gem free bo still has va\n");
lima_bo_destroy(bo);
}
int lima_gem_object_open(struct drm_gem_object *obj, struct drm_file *file)
{
struct lima_bo *bo = to_lima_bo(obj);
struct lima_drm_priv *priv = to_lima_drm_priv(file);
struct lima_vm *vm = priv->vm;
return lima_vm_bo_add(vm, bo, true);
}
void lima_gem_object_close(struct drm_gem_object *obj, struct drm_file *file)
{
struct lima_bo *bo = to_lima_bo(obj);
struct lima_drm_priv *priv = to_lima_drm_priv(file);
struct lima_vm *vm = priv->vm;
lima_vm_bo_del(vm, bo);
}
int lima_gem_get_info(struct drm_file *file, u32 handle, u32 *va, u64 *offset)
{
struct drm_gem_object *obj;
struct lima_bo *bo;
struct lima_drm_priv *priv = to_lima_drm_priv(file);
struct lima_vm *vm = priv->vm;
int err;
obj = drm_gem_object_lookup(file, handle);
if (!obj)
return -ENOENT;
bo = to_lima_bo(obj);
*va = lima_vm_get_va(vm, bo);
err = drm_gem_create_mmap_offset(obj);
if (!err)
*offset = drm_vma_node_offset_addr(&obj->vma_node);
drm_gem_object_put_unlocked(obj);
return err;
}
static vm_fault_t lima_gem_fault(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
struct drm_gem_object *obj = vma->vm_private_data;
struct lima_bo *bo = to_lima_bo(obj);
pfn_t pfn;
pgoff_t pgoff;
/* We don't use vmf->pgoff since that has the fake offset: */
pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT;
pfn = __pfn_to_pfn_t(page_to_pfn(bo->pages[pgoff]), PFN_DEV);
return vmf_insert_mixed(vma, vmf->address, pfn);
}
const struct vm_operations_struct lima_gem_vm_ops = {
.fault = lima_gem_fault,
.open = drm_gem_vm_open,
.close = drm_gem_vm_close,
};
void lima_set_vma_flags(struct vm_area_struct *vma)
{
pgprot_t prot = vm_get_page_prot(vma->vm_flags);
vma->vm_flags |= VM_MIXEDMAP;
vma->vm_flags &= ~VM_PFNMAP;
vma->vm_page_prot = pgprot_writecombine(prot);
}
int lima_gem_mmap(struct file *filp, struct vm_area_struct *vma)
{
int ret;
ret = drm_gem_mmap(filp, vma);
if (ret)
return ret;
lima_set_vma_flags(vma);
return 0;
}
static int lima_gem_sync_bo(struct lima_sched_task *task, struct lima_bo *bo,
bool write, bool explicit)
{
int err = 0;
if (!write) {
err = reservation_object_reserve_shared(bo->gem.resv, 1);
if (err)
return err;
}
/* explicit sync use user passed dep fence */
if (explicit)
return 0;
/* implicit sync use bo fence in resv obj */
if (write) {
unsigned nr_fences;
struct dma_fence **fences;
int i;
err = reservation_object_get_fences_rcu(
bo->gem.resv, NULL, &nr_fences, &fences);
if (err || !nr_fences)
return err;
for (i = 0; i < nr_fences; i++) {
err = lima_sched_task_add_dep(task, fences[i]);
if (err)
break;
}
/* for error case free remaining fences */
for ( ; i < nr_fences; i++)
dma_fence_put(fences[i]);
kfree(fences);
} else {
struct dma_fence *fence;
fence = reservation_object_get_excl_rcu(bo->gem.resv);
if (fence) {
err = lima_sched_task_add_dep(task, fence);
if (err)
dma_fence_put(fence);
}
}
return err;
}
static int lima_gem_lock_bos(struct lima_bo **bos, u32 nr_bos,
struct ww_acquire_ctx *ctx)
{
int i, ret = 0, contended, slow_locked = -1;
ww_acquire_init(ctx, &reservation_ww_class);
retry:
for (i = 0; i < nr_bos; i++) {
if (i == slow_locked) {
slow_locked = -1;
continue;
}
ret = ww_mutex_lock_interruptible(&bos[i]->gem.resv->lock, ctx);
if (ret < 0) {
contended = i;
goto err;
}
}
ww_acquire_done(ctx);
return 0;
err:
for (i--; i >= 0; i--)
ww_mutex_unlock(&bos[i]->gem.resv->lock);
if (slow_locked >= 0)
ww_mutex_unlock(&bos[slow_locked]->gem.resv->lock);
if (ret == -EDEADLK) {
/* we lost out in a seqno race, lock and retry.. */
ret = ww_mutex_lock_slow_interruptible(
&bos[contended]->gem.resv->lock, ctx);
if (!ret) {
slow_locked = contended;
goto retry;
}
}
ww_acquire_fini(ctx);
return ret;
}
static void lima_gem_unlock_bos(struct lima_bo **bos, u32 nr_bos,
struct ww_acquire_ctx *ctx)
{
int i;
for (i = 0; i < nr_bos; i++)
ww_mutex_unlock(&bos[i]->gem.resv->lock);
ww_acquire_fini(ctx);
}
static int lima_gem_add_deps(struct drm_file *file, struct lima_submit *submit)
{
int i, err;
for (i = 0; i < ARRAY_SIZE(submit->in_sync); i++) {
struct dma_fence *fence = NULL;
if (!submit->in_sync[i])
continue;
err = drm_syncobj_find_fence(file, submit->in_sync[i],
0, 0, &fence);
if (err)
return err;
err = lima_sched_task_add_dep(submit->task, fence);
if (err) {
dma_fence_put(fence);
return err;
}
}
return 0;
}
int lima_gem_submit(struct drm_file *file, struct lima_submit *submit)
{
int i, err = 0;
struct ww_acquire_ctx ctx;
struct lima_drm_priv *priv = to_lima_drm_priv(file);
struct lima_vm *vm = priv->vm;
struct drm_syncobj *out_sync = NULL;
struct dma_fence *fence;
struct lima_bo **bos = submit->lbos;
if (submit->out_sync) {
out_sync = drm_syncobj_find(file, submit->out_sync);
if (!out_sync)
return -ENOENT;
}
for (i = 0; i < submit->nr_bos; i++) {
struct drm_gem_object *obj;
struct lima_bo *bo;
obj = drm_gem_object_lookup(file, submit->bos[i].handle);
if (!obj) {
err = -ENOENT;
goto err_out0;
}
bo = to_lima_bo(obj);
/* increase refcnt of gpu va map to prevent unmapped when executing,
* will be decreased when task done
*/
err = lima_vm_bo_add(vm, bo, false);
if (err) {
drm_gem_object_put_unlocked(obj);
goto err_out0;
}
bos[i] = bo;
}
err = lima_gem_lock_bos(bos, submit->nr_bos, &ctx);
if (err)
goto err_out0;
err = lima_sched_task_init(
submit->task, submit->ctx->context + submit->pipe,
bos, submit->nr_bos, vm);
if (err)
goto err_out1;
err = lima_gem_add_deps(file, submit);
if (err)
goto err_out2;
for (i = 0; i < submit->nr_bos; i++) {
err = lima_gem_sync_bo(
submit->task, bos[i],
submit->bos[i].flags & LIMA_SUBMIT_BO_WRITE,
submit->flags & LIMA_SUBMIT_FLAG_EXPLICIT_FENCE);
if (err)
goto err_out2;
}
fence = lima_sched_context_queue_task(
submit->ctx->context + submit->pipe, submit->task);
for (i = 0; i < submit->nr_bos; i++) {
if (submit->bos[i].flags & LIMA_SUBMIT_BO_WRITE)
reservation_object_add_excl_fence(bos[i]->gem.resv, fence);
else
reservation_object_add_shared_fence(bos[i]->gem.resv, fence);
}
lima_gem_unlock_bos(bos, submit->nr_bos, &ctx);
for (i = 0; i < submit->nr_bos; i++)
drm_gem_object_put_unlocked(&bos[i]->gem);
if (out_sync) {
drm_syncobj_replace_fence(out_sync, fence);
drm_syncobj_put(out_sync);
}
dma_fence_put(fence);
return 0;
err_out2:
lima_sched_task_fini(submit->task);
err_out1:
lima_gem_unlock_bos(bos, submit->nr_bos, &ctx);
err_out0:
for (i = 0; i < submit->nr_bos; i++) {
if (!bos[i])
break;
lima_vm_bo_del(vm, bos[i]);
drm_gem_object_put_unlocked(&bos[i]->gem);
}
if (out_sync)
drm_syncobj_put(out_sync);
return err;
}
int lima_gem_wait(struct drm_file *file, u32 handle, u32 op, s64 timeout_ns)
{
bool write = op & LIMA_GEM_WAIT_WRITE;
long ret, timeout;
if (!op)
return 0;
timeout = drm_timeout_abs_to_jiffies(timeout_ns);
ret = drm_gem_reservation_object_wait(file, handle, write, timeout);
if (ret == 0)
ret = timeout ? -ETIMEDOUT : -EBUSY;
return ret;
}

25
drivers/gpu/drm/lima/lima_gem.h Normal file
View File

@ -0,0 +1,25 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_GEM_H__
#define __LIMA_GEM_H__
struct lima_bo;
struct lima_submit;
extern const struct vm_operations_struct lima_gem_vm_ops;
struct lima_bo *lima_gem_create_bo(struct drm_device *dev, u32 size, u32 flags);
int lima_gem_create_handle(struct drm_device *dev, struct drm_file *file,
u32 size, u32 flags, u32 *handle);
void lima_gem_free_object(struct drm_gem_object *obj);
int lima_gem_object_open(struct drm_gem_object *obj, struct drm_file *file);
void lima_gem_object_close(struct drm_gem_object *obj, struct drm_file *file);
int lima_gem_get_info(struct drm_file *file, u32 handle, u32 *va, u64 *offset);
int lima_gem_mmap(struct file *filp, struct vm_area_struct *vma);
int lima_gem_submit(struct drm_file *file, struct lima_submit *submit);
int lima_gem_wait(struct drm_file *file, u32 handle, u32 op, s64 timeout_ns);
void lima_set_vma_flags(struct vm_area_struct *vma);
#endif

47
drivers/gpu/drm/lima/lima_gem_prime.c Normal file
View File

@ -0,0 +1,47 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/dma-buf.h>
#include <drm/drm_prime.h>
#include <drm/drm_drv.h>
#include <drm/drm_file.h>
#include "lima_device.h"
#include "lima_object.h"
#include "lima_gem.h"
#include "lima_gem_prime.h"
struct drm_gem_object *lima_gem_prime_import_sg_table(
struct drm_device *dev, struct dma_buf_attachment *attach,
struct sg_table *sgt)
{
struct lima_device *ldev = to_lima_dev(dev);
struct lima_bo *bo;
bo = lima_bo_create(ldev, attach->dmabuf->size, 0, sgt,
attach->dmabuf->resv);
if (IS_ERR(bo))
return ERR_CAST(bo);
return &bo->gem;
}
struct sg_table *lima_gem_prime_get_sg_table(struct drm_gem_object *obj)
{
struct lima_bo *bo = to_lima_bo(obj);
int npages = obj->size >> PAGE_SHIFT;
return drm_prime_pages_to_sg(bo->pages, npages);
}
int lima_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
{
int ret;
ret = drm_gem_mmap_obj(obj, obj->size, vma);
if (ret)
return ret;
lima_set_vma_flags(vma);
return 0;
}

13
drivers/gpu/drm/lima/lima_gem_prime.h Normal file
View File

@ -0,0 +1,13 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_GEM_PRIME_H__
#define __LIMA_GEM_PRIME_H__
struct drm_gem_object *lima_gem_prime_import_sg_table(
struct drm_device *dev, struct dma_buf_attachment *attach,
struct sg_table *sgt);
struct sg_table *lima_gem_prime_get_sg_table(struct drm_gem_object *obj);
int lima_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
#endif

283
drivers/gpu/drm/lima/lima_gp.c Normal file
View File

@ -0,0 +1,283 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/interrupt.h>
#include <linux/iopoll.h>
#include <linux/device.h>
#include <linux/slab.h>
#include <drm/lima_drm.h>
#include "lima_device.h"
#include "lima_gp.h"
#include "lima_regs.h"
#define gp_write(reg, data) writel(data, ip->iomem + reg)
#define gp_read(reg) readl(ip->iomem + reg)
static irqreturn_t lima_gp_irq_handler(int irq, void *data)
{
struct lima_ip *ip = data;
struct lima_device *dev = ip->dev;
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_gp;
u32 state = gp_read(LIMA_GP_INT_STAT);
u32 status = gp_read(LIMA_GP_STATUS);
bool done = false;
/* for shared irq case */
if (!state)
return IRQ_NONE;
if (state & LIMA_GP_IRQ_MASK_ERROR) {
dev_err(dev->dev, "gp error irq state=%x status=%x\n",
state, status);
/* mask all interrupts before hard reset */
gp_write(LIMA_GP_INT_MASK, 0);
pipe->error = true;
done = true;
} else {
bool valid = state & (LIMA_GP_IRQ_VS_END_CMD_LST |
LIMA_GP_IRQ_PLBU_END_CMD_LST);
bool active = status & (LIMA_GP_STATUS_VS_ACTIVE |
LIMA_GP_STATUS_PLBU_ACTIVE);
done = valid && !active;
}
gp_write(LIMA_GP_INT_CLEAR, state);
if (done)
lima_sched_pipe_task_done(pipe);
return IRQ_HANDLED;
}
static void lima_gp_soft_reset_async(struct lima_ip *ip)
{
if (ip->data.async_reset)
return;
gp_write(LIMA_GP_INT_MASK, 0);
gp_write(LIMA_GP_INT_CLEAR, LIMA_GP_IRQ_RESET_COMPLETED);
gp_write(LIMA_GP_CMD, LIMA_GP_CMD_SOFT_RESET);
ip->data.async_reset = true;
}
static int lima_gp_soft_reset_async_wait(struct lima_ip *ip)
{
struct lima_device *dev = ip->dev;
int err;
u32 v;
if (!ip->data.async_reset)
return 0;
err = readl_poll_timeout(ip->iomem + LIMA_GP_INT_RAWSTAT, v,
v & LIMA_GP_IRQ_RESET_COMPLETED,
0, 100);
if (err) {
dev_err(dev->dev, "gp soft reset time out\n");
return err;
}
gp_write(LIMA_GP_INT_CLEAR, LIMA_GP_IRQ_MASK_ALL);
gp_write(LIMA_GP_INT_MASK, LIMA_GP_IRQ_MASK_USED);
ip->data.async_reset = false;
return 0;
}
static int lima_gp_task_validate(struct lima_sched_pipe *pipe,
struct lima_sched_task *task)
{
struct drm_lima_gp_frame *frame = task->frame;
u32 *f = frame->frame;
(void)pipe;
if (f[LIMA_GP_VSCL_START_ADDR >> 2] >
f[LIMA_GP_VSCL_END_ADDR >> 2] ||
f[LIMA_GP_PLBUCL_START_ADDR >> 2] >
f[LIMA_GP_PLBUCL_END_ADDR >> 2] ||
f[LIMA_GP_PLBU_ALLOC_START_ADDR >> 2] >
f[LIMA_GP_PLBU_ALLOC_END_ADDR >> 2])
return -EINVAL;
if (f[LIMA_GP_VSCL_START_ADDR >> 2] ==
f[LIMA_GP_VSCL_END_ADDR >> 2] &&
f[LIMA_GP_PLBUCL_START_ADDR >> 2] ==
f[LIMA_GP_PLBUCL_END_ADDR >> 2])
return -EINVAL;
return 0;
}
static void lima_gp_task_run(struct lima_sched_pipe *pipe,
struct lima_sched_task *task)
{
struct lima_ip *ip = pipe->processor[0];
struct drm_lima_gp_frame *frame = task->frame;
u32 *f = frame->frame;
u32 cmd = 0;
int i;
if (f[LIMA_GP_VSCL_START_ADDR >> 2] !=
f[LIMA_GP_VSCL_END_ADDR >> 2])
cmd |= LIMA_GP_CMD_START_VS;
if (f[LIMA_GP_PLBUCL_START_ADDR >> 2] !=
f[LIMA_GP_PLBUCL_END_ADDR >> 2])
cmd |= LIMA_GP_CMD_START_PLBU;
/* before any hw ops, wait last success task async soft reset */
lima_gp_soft_reset_async_wait(ip);
for (i = 0; i < LIMA_GP_FRAME_REG_NUM; i++)
writel(f[i], ip->iomem + LIMA_GP_VSCL_START_ADDR + i * 4);
gp_write(LIMA_GP_CMD, LIMA_GP_CMD_UPDATE_PLBU_ALLOC);
gp_write(LIMA_GP_CMD, cmd);
}
static int lima_gp_hard_reset_poll(struct lima_ip *ip)
{
gp_write(LIMA_GP_PERF_CNT_0_LIMIT, 0xC01A0000);
return gp_read(LIMA_GP_PERF_CNT_0_LIMIT) == 0xC01A0000;
}
static int lima_gp_hard_reset(struct lima_ip *ip)
{
struct lima_device *dev = ip->dev;
int ret;
gp_write(LIMA_GP_PERF_CNT_0_LIMIT, 0xC0FFE000);
gp_write(LIMA_GP_INT_MASK, 0);
gp_write(LIMA_GP_CMD, LIMA_GP_CMD_RESET);
ret = lima_poll_timeout(ip, lima_gp_hard_reset_poll, 10, 100);
if (ret) {
dev_err(dev->dev, "gp hard reset timeout\n");
return ret;
}
gp_write(LIMA_GP_PERF_CNT_0_LIMIT, 0);
gp_write(LIMA_GP_INT_CLEAR, LIMA_GP_IRQ_MASK_ALL);
gp_write(LIMA_GP_INT_MASK, LIMA_GP_IRQ_MASK_USED);
return 0;
}
static void lima_gp_task_fini(struct lima_sched_pipe *pipe)
{
lima_gp_soft_reset_async(pipe->processor[0]);
}
static void lima_gp_task_error(struct lima_sched_pipe *pipe)
{
struct lima_ip *ip = pipe->processor[0];
dev_err(ip->dev->dev, "gp task error int_state=%x status=%x\n",
gp_read(LIMA_GP_INT_STAT), gp_read(LIMA_GP_STATUS));
lima_gp_hard_reset(ip);
}
static void lima_gp_task_mmu_error(struct lima_sched_pipe *pipe)
{
lima_sched_pipe_task_done(pipe);
}
static void lima_gp_print_version(struct lima_ip *ip)
{
u32 version, major, minor;
char *name;
version = gp_read(LIMA_GP_VERSION);
major = (version >> 8) & 0xFF;
minor = version & 0xFF;
switch (version >> 16) {
case 0xA07:
name = "mali200";
break;
case 0xC07:
name = "mali300";
break;
case 0xB07:
name = "mali400";
break;
case 0xD07:
name = "mali450";
break;
default:
name = "unknown";
break;
}
dev_info(ip->dev->dev, "%s - %s version major %d minor %d\n",
lima_ip_name(ip), name, major, minor);
}
static struct kmem_cache *lima_gp_task_slab;
static int lima_gp_task_slab_refcnt;
int lima_gp_init(struct lima_ip *ip)
{
struct lima_device *dev = ip->dev;
int err;
lima_gp_print_version(ip);
ip->data.async_reset = false;
lima_gp_soft_reset_async(ip);
err = lima_gp_soft_reset_async_wait(ip);
if (err)
return err;
err = devm_request_irq(dev->dev, ip->irq, lima_gp_irq_handler,
IRQF_SHARED, lima_ip_name(ip), ip);
if (err) {
dev_err(dev->dev, "gp %s fail to request irq\n",
lima_ip_name(ip));
return err;
}
dev->gp_version = gp_read(LIMA_GP_VERSION);
return 0;
}
void lima_gp_fini(struct lima_ip *ip)
{
}
int lima_gp_pipe_init(struct lima_device *dev)
{
int frame_size = sizeof(struct drm_lima_gp_frame);
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_gp;
if (!lima_gp_task_slab) {
lima_gp_task_slab = kmem_cache_create_usercopy(
"lima_gp_task", sizeof(struct lima_sched_task) + frame_size,
0, SLAB_HWCACHE_ALIGN, sizeof(struct lima_sched_task),
frame_size, NULL);
if (!lima_gp_task_slab)
return -ENOMEM;
}
lima_gp_task_slab_refcnt++;
pipe->frame_size = frame_size;
pipe->task_slab = lima_gp_task_slab;
pipe->task_validate = lima_gp_task_validate;
pipe->task_run = lima_gp_task_run;
pipe->task_fini = lima_gp_task_fini;
pipe->task_error = lima_gp_task_error;
pipe->task_mmu_error = lima_gp_task_mmu_error;
return 0;
}
void lima_gp_pipe_fini(struct lima_device *dev)
{
if (!--lima_gp_task_slab_refcnt) {
kmem_cache_destroy(lima_gp_task_slab);
lima_gp_task_slab = NULL;
}
}

16
drivers/gpu/drm/lima/lima_gp.h Normal file
View File

@ -0,0 +1,16 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_GP_H__
#define __LIMA_GP_H__
struct lima_ip;
struct lima_device;
int lima_gp_init(struct lima_ip *ip);
void lima_gp_fini(struct lima_ip *ip);
int lima_gp_pipe_init(struct lima_device *dev);
void lima_gp_pipe_fini(struct lima_device *dev);
#endif

80
drivers/gpu/drm/lima/lima_l2_cache.c Normal file
View File

@ -0,0 +1,80 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/iopoll.h>
#include <linux/device.h>
#include "lima_device.h"
#include "lima_l2_cache.h"
#include "lima_regs.h"
#define l2_cache_write(reg, data) writel(data, ip->iomem + reg)
#define l2_cache_read(reg) readl(ip->iomem + reg)
static int lima_l2_cache_wait_idle(struct lima_ip *ip)
{
struct lima_device *dev = ip->dev;
int err;
u32 v;
err = readl_poll_timeout(ip->iomem + LIMA_L2_CACHE_STATUS, v,
!(v & LIMA_L2_CACHE_STATUS_COMMAND_BUSY),
0, 1000);
if (err) {
dev_err(dev->dev, "l2 cache wait command timeout\n");
return err;
}
return 0;
}
int lima_l2_cache_flush(struct lima_ip *ip)
{
int ret;
spin_lock(&ip->data.lock);
l2_cache_write(LIMA_L2_CACHE_COMMAND, LIMA_L2_CACHE_COMMAND_CLEAR_ALL);
ret = lima_l2_cache_wait_idle(ip);
spin_unlock(&ip->data.lock);
return ret;
}
int lima_l2_cache_init(struct lima_ip *ip)
{
int i, err;
u32 size;
struct lima_device *dev = ip->dev;
/* l2_cache2 only exists when one of PP4-7 present */
if (ip->id == lima_ip_l2_cache2) {
for (i = lima_ip_pp4; i <= lima_ip_pp7; i++) {
if (dev->ip[i].present)
break;
}
if (i > lima_ip_pp7)
return -ENODEV;
}
spin_lock_init(&ip->data.lock);
size = l2_cache_read(LIMA_L2_CACHE_SIZE);
dev_info(dev->dev, "l2 cache %uK, %u-way, %ubyte cache line, %ubit external bus\n",
1 << (((size >> 16) & 0xff) - 10),
1 << ((size >> 8) & 0xff),
1 << (size & 0xff),
1 << ((size >> 24) & 0xff));
err = lima_l2_cache_flush(ip);
if (err)
return err;
l2_cache_write(LIMA_L2_CACHE_ENABLE,
LIMA_L2_CACHE_ENABLE_ACCESS|LIMA_L2_CACHE_ENABLE_READ_ALLOCATE);
l2_cache_write(LIMA_L2_CACHE_MAX_READS, 0x1c);
return 0;
}
void lima_l2_cache_fini(struct lima_ip *ip)
{
}

14
drivers/gpu/drm/lima/lima_l2_cache.h Normal file
View File

@ -0,0 +1,14 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_L2_CACHE_H__
#define __LIMA_L2_CACHE_H__
struct lima_ip;
int lima_l2_cache_init(struct lima_ip *ip);
void lima_l2_cache_fini(struct lima_ip *ip);
int lima_l2_cache_flush(struct lima_ip *ip);
#endif

142
drivers/gpu/drm/lima/lima_mmu.c Normal file
View File

@ -0,0 +1,142 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/interrupt.h>
#include <linux/iopoll.h>
#include <linux/device.h>
#include "lima_device.h"
#include "lima_mmu.h"
#include "lima_vm.h"
#include "lima_object.h"
#include "lima_regs.h"
#define mmu_write(reg, data) writel(data, ip->iomem + reg)
#define mmu_read(reg) readl(ip->iomem + reg)
#define lima_mmu_send_command(cmd, addr, val, cond) \
({ \
int __ret; \
\
mmu_write(LIMA_MMU_COMMAND, cmd); \
__ret = readl_poll_timeout(ip->iomem + (addr), val, \
cond, 0, 100); \
if (__ret) \
dev_err(dev->dev, \
"mmu command %x timeout\n", cmd); \
__ret; \
})
static irqreturn_t lima_mmu_irq_handler(int irq, void *data)
{
struct lima_ip *ip = data;
struct lima_device *dev = ip->dev;
u32 status = mmu_read(LIMA_MMU_INT_STATUS);
struct lima_sched_pipe *pipe;
/* for shared irq case */
if (!status)
return IRQ_NONE;
if (status & LIMA_MMU_INT_PAGE_FAULT) {
u32 fault = mmu_read(LIMA_MMU_PAGE_FAULT_ADDR);
dev_err(dev->dev, "mmu page fault at 0x%x from bus id %d of type %s on %s\n",
fault, LIMA_MMU_STATUS_BUS_ID(status),
status & LIMA_MMU_STATUS_PAGE_FAULT_IS_WRITE ? "write" : "read",
lima_ip_name(ip));
}
if (status & LIMA_MMU_INT_READ_BUS_ERROR)
dev_err(dev->dev, "mmu %s irq bus error\n", lima_ip_name(ip));
/* mask all interrupts before resume */
mmu_write(LIMA_MMU_INT_MASK, 0);
mmu_write(LIMA_MMU_INT_CLEAR, status);
pipe = dev->pipe + (ip->id == lima_ip_gpmmu ? lima_pipe_gp : lima_pipe_pp);
lima_sched_pipe_mmu_error(pipe);
return IRQ_HANDLED;
}
int lima_mmu_init(struct lima_ip *ip)
{
struct lima_device *dev = ip->dev;
int err;
u32 v;
if (ip->id == lima_ip_ppmmu_bcast)
return 0;
mmu_write(LIMA_MMU_DTE_ADDR, 0xCAFEBABE);
if (mmu_read(LIMA_MMU_DTE_ADDR) != 0xCAFEB000) {
dev_err(dev->dev, "mmu %s dte write test fail\n", lima_ip_name(ip));
return -EIO;
}
mmu_write(LIMA_MMU_COMMAND, LIMA_MMU_COMMAND_HARD_RESET);
err = lima_mmu_send_command(LIMA_MMU_COMMAND_HARD_RESET,
LIMA_MMU_DTE_ADDR, v, v == 0);
if (err)
return err;
err = devm_request_irq(dev->dev, ip->irq, lima_mmu_irq_handler,
IRQF_SHARED, lima_ip_name(ip), ip);
if (err) {
dev_err(dev->dev, "mmu %s fail to request irq\n", lima_ip_name(ip));
return err;
}
mmu_write(LIMA_MMU_INT_MASK, LIMA_MMU_INT_PAGE_FAULT | LIMA_MMU_INT_READ_BUS_ERROR);
mmu_write(LIMA_MMU_DTE_ADDR, dev->empty_vm->pd.dma);
return lima_mmu_send_command(LIMA_MMU_COMMAND_ENABLE_PAGING,
LIMA_MMU_STATUS, v,
v & LIMA_MMU_STATUS_PAGING_ENABLED);
}
void lima_mmu_fini(struct lima_ip *ip)
{
}
void lima_mmu_switch_vm(struct lima_ip *ip, struct lima_vm *vm)
{
struct lima_device *dev = ip->dev;
u32 v;
lima_mmu_send_command(LIMA_MMU_COMMAND_ENABLE_STALL,
LIMA_MMU_STATUS, v,
v & LIMA_MMU_STATUS_STALL_ACTIVE);
if (vm)
mmu_write(LIMA_MMU_DTE_ADDR, vm->pd.dma);
/* flush the TLB */
mmu_write(LIMA_MMU_COMMAND, LIMA_MMU_COMMAND_ZAP_CACHE);
lima_mmu_send_command(LIMA_MMU_COMMAND_DISABLE_STALL,
LIMA_MMU_STATUS, v,
!(v & LIMA_MMU_STATUS_STALL_ACTIVE));
}
void lima_mmu_page_fault_resume(struct lima_ip *ip)
{
struct lima_device *dev = ip->dev;
u32 status = mmu_read(LIMA_MMU_STATUS);
u32 v;
if (status & LIMA_MMU_STATUS_PAGE_FAULT_ACTIVE) {
dev_info(dev->dev, "mmu resume\n");
mmu_write(LIMA_MMU_INT_MASK, 0);
mmu_write(LIMA_MMU_DTE_ADDR, 0xCAFEBABE);
lima_mmu_send_command(LIMA_MMU_COMMAND_HARD_RESET,
LIMA_MMU_DTE_ADDR, v, v == 0);
mmu_write(LIMA_MMU_INT_MASK, LIMA_MMU_INT_PAGE_FAULT | LIMA_MMU_INT_READ_BUS_ERROR);
mmu_write(LIMA_MMU_DTE_ADDR, dev->empty_vm->pd.dma);
lima_mmu_send_command(LIMA_MMU_COMMAND_ENABLE_PAGING,
LIMA_MMU_STATUS, v,
v & LIMA_MMU_STATUS_PAGING_ENABLED);
}
}

16
drivers/gpu/drm/lima/lima_mmu.h Normal file
View File

@ -0,0 +1,16 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_MMU_H__
#define __LIMA_MMU_H__
struct lima_ip;
struct lima_vm;
int lima_mmu_init(struct lima_ip *ip);
void lima_mmu_fini(struct lima_ip *ip);
void lima_mmu_switch_vm(struct lima_ip *ip, struct lima_vm *vm);
void lima_mmu_page_fault_resume(struct lima_ip *ip);
#endif

122
drivers/gpu/drm/lima/lima_object.c Normal file
View File

@ -0,0 +1,122 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
#include <drm/drm_prime.h>
#include <linux/pagemap.h>
#include <linux/dma-mapping.h>
#include "lima_object.h"
void lima_bo_destroy(struct lima_bo *bo)
{
if (bo->sgt) {
kfree(bo->pages);
drm_prime_gem_destroy(&bo->gem, bo->sgt);
} else {
if (bo->pages_dma_addr) {
int i, npages = bo->gem.size >> PAGE_SHIFT;
for (i = 0; i < npages; i++) {
if (bo->pages_dma_addr[i])
dma_unmap_page(bo->gem.dev->dev,
bo->pages_dma_addr[i],
PAGE_SIZE, DMA_BIDIRECTIONAL);
}
}
if (bo->pages)
drm_gem_put_pages(&bo->gem, bo->pages, true, true);
}
kfree(bo->pages_dma_addr);
drm_gem_object_release(&bo->gem);
kfree(bo);
}
static struct lima_bo *lima_bo_create_struct(struct lima_device *dev, u32 size, u32 flags,
struct reservation_object *resv)
{
struct lima_bo *bo;
int err;
size = PAGE_ALIGN(size);
bo = kzalloc(sizeof(*bo), GFP_KERNEL);
if (!bo)
return ERR_PTR(-ENOMEM);
mutex_init(&bo->lock);
INIT_LIST_HEAD(&bo->va);
bo->gem.resv = resv;
err = drm_gem_object_init(dev->ddev, &bo->gem, size);
if (err) {
kfree(bo);
return ERR_PTR(err);
}
return bo;
}
struct lima_bo *lima_bo_create(struct lima_device *dev, u32 size,
u32 flags, struct sg_table *sgt,
struct reservation_object *resv)
{
int i, err;
size_t npages;
struct lima_bo *bo, *ret;
bo = lima_bo_create_struct(dev, size, flags, resv);
if (IS_ERR(bo))
return bo;
npages = bo->gem.size >> PAGE_SHIFT;
bo->pages_dma_addr = kcalloc(npages, sizeof(dma_addr_t), GFP_KERNEL);
if (!bo->pages_dma_addr) {
ret = ERR_PTR(-ENOMEM);
goto err_out;
}
if (sgt) {
bo->sgt = sgt;
bo->pages = kcalloc(npages, sizeof(*bo->pages), GFP_KERNEL);
if (!bo->pages) {
ret = ERR_PTR(-ENOMEM);
goto err_out;
}
err = drm_prime_sg_to_page_addr_arrays(
sgt, bo->pages, bo->pages_dma_addr, npages);
if (err) {
ret = ERR_PTR(err);
goto err_out;
}
} else {
mapping_set_gfp_mask(bo->gem.filp->f_mapping, GFP_DMA32);
bo->pages = drm_gem_get_pages(&bo->gem);
if (IS_ERR(bo->pages)) {
ret = ERR_CAST(bo->pages);
bo->pages = NULL;
goto err_out;
}
for (i = 0; i < npages; i++) {
dma_addr_t addr = dma_map_page(dev->dev, bo->pages[i], 0,
PAGE_SIZE, DMA_BIDIRECTIONAL);
if (dma_mapping_error(dev->dev, addr)) {
ret = ERR_PTR(-EFAULT);
goto err_out;
}
bo->pages_dma_addr[i] = addr;
}
}
return bo;
err_out:
lima_bo_destroy(bo);
return ret;
}

36
drivers/gpu/drm/lima/lima_object.h Normal file
View File

@ -0,0 +1,36 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_OBJECT_H__
#define __LIMA_OBJECT_H__
#include <drm/drm_gem.h>
#include "lima_device.h"
struct lima_bo {
struct drm_gem_object gem;
struct page **pages;
dma_addr_t *pages_dma_addr;
struct sg_table *sgt;
void *vaddr;
struct mutex lock;
struct list_head va;
};
static inline struct lima_bo *
to_lima_bo(struct drm_gem_object *obj)
{
return container_of(obj, struct lima_bo, gem);
}
struct lima_bo *lima_bo_create(struct lima_device *dev, u32 size,
u32 flags, struct sg_table *sgt,
struct reservation_object *resv);
void lima_bo_destroy(struct lima_bo *bo);
void *lima_bo_vmap(struct lima_bo *bo);
void lima_bo_vunmap(struct lima_bo *bo);
#endif

60
drivers/gpu/drm/lima/lima_pmu.c Normal file
View File

@ -0,0 +1,60 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/iopoll.h>
#include <linux/device.h>
#include "lima_device.h"
#include "lima_pmu.h"
#include "lima_regs.h"
#define pmu_write(reg, data) writel(data, ip->iomem + reg)
#define pmu_read(reg) readl(ip->iomem + reg)
static int lima_pmu_wait_cmd(struct lima_ip *ip)
{
struct lima_device *dev = ip->dev;
int err;
u32 v;
err = readl_poll_timeout(ip->iomem + LIMA_PMU_INT_RAWSTAT,
v, v & LIMA_PMU_INT_CMD_MASK,
100, 100000);
if (err) {
dev_err(dev->dev, "timeout wait pmd cmd\n");
return err;
}
pmu_write(LIMA_PMU_INT_CLEAR, LIMA_PMU_INT_CMD_MASK);
return 0;
}
int lima_pmu_init(struct lima_ip *ip)
{
int err;
u32 stat;
pmu_write(LIMA_PMU_INT_MASK, 0);
/* If this value is too low, when in high GPU clk freq,
* GPU will be in unstable state.
*/
pmu_write(LIMA_PMU_SW_DELAY, 0xffff);
/* status reg 1=off 0=on */
stat = pmu_read(LIMA_PMU_STATUS);
/* power up all ip */
if (stat) {
pmu_write(LIMA_PMU_POWER_UP, stat);
err = lima_pmu_wait_cmd(ip);
if (err)
return err;
}
return 0;
}
void lima_pmu_fini(struct lima_ip *ip)
{
}

12
drivers/gpu/drm/lima/lima_pmu.h Normal file
View File

@ -0,0 +1,12 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_PMU_H__
#define __LIMA_PMU_H__
struct lima_ip;
int lima_pmu_init(struct lima_ip *ip);
void lima_pmu_fini(struct lima_ip *ip);
#endif

427
drivers/gpu/drm/lima/lima_pp.c Normal file
View File

@ -0,0 +1,427 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/device.h>
#include <linux/slab.h>
#include <drm/lima_drm.h>
#include "lima_device.h"
#include "lima_pp.h"
#include "lima_dlbu.h"
#include "lima_bcast.h"
#include "lima_vm.h"
#include "lima_regs.h"
#define pp_write(reg, data) writel(data, ip->iomem + reg)
#define pp_read(reg) readl(ip->iomem + reg)
static void lima_pp_handle_irq(struct lima_ip *ip, u32 state)
{
struct lima_device *dev = ip->dev;
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
if (state & LIMA_PP_IRQ_MASK_ERROR) {
u32 status = pp_read(LIMA_PP_STATUS);
dev_err(dev->dev, "pp error irq state=%x status=%x\n",
state, status);
pipe->error = true;
/* mask all interrupts before hard reset */
pp_write(LIMA_PP_INT_MASK, 0);
}
pp_write(LIMA_PP_INT_CLEAR, state);
}
static irqreturn_t lima_pp_irq_handler(int irq, void *data)
{
struct lima_ip *ip = data;
struct lima_device *dev = ip->dev;
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
u32 state = pp_read(LIMA_PP_INT_STATUS);
/* for shared irq case */
if (!state)
return IRQ_NONE;
lima_pp_handle_irq(ip, state);
if (atomic_dec_and_test(&pipe->task))
lima_sched_pipe_task_done(pipe);
return IRQ_HANDLED;
}
static irqreturn_t lima_pp_bcast_irq_handler(int irq, void *data)
{
int i;
irqreturn_t ret = IRQ_NONE;
struct lima_ip *pp_bcast = data;
struct lima_device *dev = pp_bcast->dev;
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
struct drm_lima_m450_pp_frame *frame = pipe->current_task->frame;
for (i = 0; i < frame->num_pp; i++) {
struct lima_ip *ip = pipe->processor[i];
u32 status, state;
if (pipe->done & (1 << i))
continue;
/* status read first in case int state change in the middle
* which may miss the interrupt handling
*/
status = pp_read(LIMA_PP_STATUS);
state = pp_read(LIMA_PP_INT_STATUS);
if (state) {
lima_pp_handle_irq(ip, state);
ret = IRQ_HANDLED;
} else {
if (status & LIMA_PP_STATUS_RENDERING_ACTIVE)
continue;
}
pipe->done |= (1 << i);
if (atomic_dec_and_test(&pipe->task))
lima_sched_pipe_task_done(pipe);
}
return ret;
}
static void lima_pp_soft_reset_async(struct lima_ip *ip)
{
if (ip->data.async_reset)
return;
pp_write(LIMA_PP_INT_MASK, 0);
pp_write(LIMA_PP_INT_RAWSTAT, LIMA_PP_IRQ_MASK_ALL);
pp_write(LIMA_PP_CTRL, LIMA_PP_CTRL_SOFT_RESET);
ip->data.async_reset = true;
}
static int lima_pp_soft_reset_poll(struct lima_ip *ip)
{
return !(pp_read(LIMA_PP_STATUS) & LIMA_PP_STATUS_RENDERING_ACTIVE) &&
pp_read(LIMA_PP_INT_RAWSTAT) == LIMA_PP_IRQ_RESET_COMPLETED;
}
static int lima_pp_soft_reset_async_wait_one(struct lima_ip *ip)
{
struct lima_device *dev = ip->dev;
int ret;
ret = lima_poll_timeout(ip, lima_pp_soft_reset_poll, 0, 100);
if (ret) {
dev_err(dev->dev, "pp %s reset time out\n", lima_ip_name(ip));
return ret;
}
pp_write(LIMA_PP_INT_CLEAR, LIMA_PP_IRQ_MASK_ALL);
pp_write(LIMA_PP_INT_MASK, LIMA_PP_IRQ_MASK_USED);
return 0;
}
static int lima_pp_soft_reset_async_wait(struct lima_ip *ip)
{
int i, err = 0;
if (!ip->data.async_reset)
return 0;
if (ip->id == lima_ip_pp_bcast) {
struct lima_device *dev = ip->dev;
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
struct drm_lima_m450_pp_frame *frame = pipe->current_task->frame;
for (i = 0; i < frame->num_pp; i++)
err |= lima_pp_soft_reset_async_wait_one(pipe->processor[i]);
} else
err = lima_pp_soft_reset_async_wait_one(ip);
ip->data.async_reset = false;
return err;
}
static void lima_pp_write_frame(struct lima_ip *ip, u32 *frame, u32 *wb)
{
int i, j, n = 0;
for (i = 0; i < LIMA_PP_FRAME_REG_NUM; i++)
writel(frame[i], ip->iomem + LIMA_PP_FRAME + i * 4);
for (i = 0; i < 3; i++) {
for (j = 0; j < LIMA_PP_WB_REG_NUM; j++)
writel(wb[n++], ip->iomem + LIMA_PP_WB(i) + j * 4);
}
}
static int lima_pp_hard_reset_poll(struct lima_ip *ip)
{
pp_write(LIMA_PP_PERF_CNT_0_LIMIT, 0xC01A0000);
return pp_read(LIMA_PP_PERF_CNT_0_LIMIT) == 0xC01A0000;
}
static int lima_pp_hard_reset(struct lima_ip *ip)
{
struct lima_device *dev = ip->dev;
int ret;
pp_write(LIMA_PP_PERF_CNT_0_LIMIT, 0xC0FFE000);
pp_write(LIMA_PP_INT_MASK, 0);
pp_write(LIMA_PP_CTRL, LIMA_PP_CTRL_FORCE_RESET);
ret = lima_poll_timeout(ip, lima_pp_hard_reset_poll, 10, 100);
if (ret) {
dev_err(dev->dev, "pp hard reset timeout\n");
return ret;
}
pp_write(LIMA_PP_PERF_CNT_0_LIMIT, 0);
pp_write(LIMA_PP_INT_CLEAR, LIMA_PP_IRQ_MASK_ALL);
pp_write(LIMA_PP_INT_MASK, LIMA_PP_IRQ_MASK_USED);
return 0;
}
static void lima_pp_print_version(struct lima_ip *ip)
{
u32 version, major, minor;
char *name;
version = pp_read(LIMA_PP_VERSION);
major = (version >> 8) & 0xFF;
minor = version & 0xFF;
switch (version >> 16) {
case 0xC807:
name = "mali200";
break;
case 0xCE07:
name = "mali300";
break;
case 0xCD07:
name = "mali400";
break;
case 0xCF07:
name = "mali450";
break;
default:
name = "unknown";
break;
}
dev_info(ip->dev->dev, "%s - %s version major %d minor %d\n",
lima_ip_name(ip), name, major, minor);
}
int lima_pp_init(struct lima_ip *ip)
{
struct lima_device *dev = ip->dev;
int err;
lima_pp_print_version(ip);
ip->data.async_reset = false;
lima_pp_soft_reset_async(ip);
err = lima_pp_soft_reset_async_wait(ip);
if (err)
return err;
err = devm_request_irq(dev->dev, ip->irq, lima_pp_irq_handler,
IRQF_SHARED, lima_ip_name(ip), ip);
if (err) {
dev_err(dev->dev, "pp %s fail to request irq\n",
lima_ip_name(ip));
return err;
}
dev->pp_version = pp_read(LIMA_PP_VERSION);
return 0;
}
void lima_pp_fini(struct lima_ip *ip)
{
}
int lima_pp_bcast_init(struct lima_ip *ip)
{
struct lima_device *dev = ip->dev;
int err;
err = devm_request_irq(dev->dev, ip->irq, lima_pp_bcast_irq_handler,
IRQF_SHARED, lima_ip_name(ip), ip);
if (err) {
dev_err(dev->dev, "pp %s fail to request irq\n",
lima_ip_name(ip));
return err;
}
return 0;
}
void lima_pp_bcast_fini(struct lima_ip *ip)
{
}
static int lima_pp_task_validate(struct lima_sched_pipe *pipe,
struct lima_sched_task *task)
{
u32 num_pp;
if (pipe->bcast_processor) {
struct drm_lima_m450_pp_frame *f = task->frame;
num_pp = f->num_pp;
if (f->_pad)
return -EINVAL;
} else {
struct drm_lima_m400_pp_frame *f = task->frame;
num_pp = f->num_pp;
}
if (num_pp == 0 || num_pp > pipe->num_processor)
return -EINVAL;
return 0;
}
static void lima_pp_task_run(struct lima_sched_pipe *pipe,
struct lima_sched_task *task)
{
if (pipe->bcast_processor) {
struct drm_lima_m450_pp_frame *frame = task->frame;
struct lima_device *dev = pipe->bcast_processor->dev;
struct lima_ip *ip = pipe->bcast_processor;
int i;
pipe->done = 0;
atomic_set(&pipe->task, frame->num_pp);
if (frame->use_dlbu) {
lima_dlbu_enable(dev, frame->num_pp);
frame->frame[LIMA_PP_FRAME >> 2] = LIMA_VA_RESERVE_DLBU;
lima_dlbu_set_reg(dev->ip + lima_ip_dlbu, frame->dlbu_regs);
} else
lima_dlbu_disable(dev);
lima_bcast_enable(dev, frame->num_pp);
lima_pp_soft_reset_async_wait(ip);
lima_pp_write_frame(ip, frame->frame, frame->wb);
for (i = 0; i < frame->num_pp; i++) {
struct lima_ip *ip = pipe->processor[i];
pp_write(LIMA_PP_STACK, frame->fragment_stack_address[i]);
if (!frame->use_dlbu)
pp_write(LIMA_PP_FRAME, frame->plbu_array_address[i]);
}
pp_write(LIMA_PP_CTRL, LIMA_PP_CTRL_START_RENDERING);
} else {
struct drm_lima_m400_pp_frame *frame = task->frame;
int i;
atomic_set(&pipe->task, frame->num_pp);
for (i = 0; i < frame->num_pp; i++) {
struct lima_ip *ip = pipe->processor[i];
frame->frame[LIMA_PP_FRAME >> 2] =
frame->plbu_array_address[i];
frame->frame[LIMA_PP_STACK >> 2] =
frame->fragment_stack_address[i];
lima_pp_soft_reset_async_wait(ip);
lima_pp_write_frame(ip, frame->frame, frame->wb);
pp_write(LIMA_PP_CTRL, LIMA_PP_CTRL_START_RENDERING);
}
}
}
static void lima_pp_task_fini(struct lima_sched_pipe *pipe)
{
if (pipe->bcast_processor)
lima_pp_soft_reset_async(pipe->bcast_processor);
else {
int i;
for (i = 0; i < pipe->num_processor; i++)
lima_pp_soft_reset_async(pipe->processor[i]);
}
}
static void lima_pp_task_error(struct lima_sched_pipe *pipe)
{
int i;
for (i = 0; i < pipe->num_processor; i++) {
struct lima_ip *ip = pipe->processor[i];
dev_err(ip->dev->dev, "pp task error %d int_state=%x status=%x\n",
i, pp_read(LIMA_PP_INT_STATUS), pp_read(LIMA_PP_STATUS));
lima_pp_hard_reset(ip);
}
}
static void lima_pp_task_mmu_error(struct lima_sched_pipe *pipe)
{
if (atomic_dec_and_test(&pipe->task))
lima_sched_pipe_task_done(pipe);
}
static struct kmem_cache *lima_pp_task_slab;
static int lima_pp_task_slab_refcnt;
int lima_pp_pipe_init(struct lima_device *dev)
{
int frame_size;
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
if (dev->id == lima_gpu_mali400)
frame_size = sizeof(struct drm_lima_m400_pp_frame);
else
frame_size = sizeof(struct drm_lima_m450_pp_frame);
if (!lima_pp_task_slab) {
lima_pp_task_slab = kmem_cache_create_usercopy(
"lima_pp_task", sizeof(struct lima_sched_task) + frame_size,
0, SLAB_HWCACHE_ALIGN, sizeof(struct lima_sched_task),
frame_size, NULL);
if (!lima_pp_task_slab)
return -ENOMEM;
}
lima_pp_task_slab_refcnt++;
pipe->frame_size = frame_size;
pipe->task_slab = lima_pp_task_slab;
pipe->task_validate = lima_pp_task_validate;
pipe->task_run = lima_pp_task_run;
pipe->task_fini = lima_pp_task_fini;
pipe->task_error = lima_pp_task_error;
pipe->task_mmu_error = lima_pp_task_mmu_error;
return 0;
}
void lima_pp_pipe_fini(struct lima_device *dev)
{
if (!--lima_pp_task_slab_refcnt) {
kmem_cache_destroy(lima_pp_task_slab);
lima_pp_task_slab = NULL;
}
}

19
drivers/gpu/drm/lima/lima_pp.h Normal file
View File

@ -0,0 +1,19 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_PP_H__
#define __LIMA_PP_H__
struct lima_ip;
struct lima_device;
int lima_pp_init(struct lima_ip *ip);
void lima_pp_fini(struct lima_ip *ip);
int lima_pp_bcast_init(struct lima_ip *ip);
void lima_pp_bcast_fini(struct lima_ip *ip);
int lima_pp_pipe_init(struct lima_device *dev);
void lima_pp_pipe_fini(struct lima_device *dev);
#endif

298
drivers/gpu/drm/lima/lima_regs.h Normal file
View File

@ -0,0 +1,298 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright 2010-2017 ARM Limited. All rights reserved.
* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com>
*/
#ifndef __LIMA_REGS_H__
#define __LIMA_REGS_H__
/* This file's register definition is collected from the
* official ARM Mali Utgard GPU kernel driver source code
*/
/* PMU regs */
#define LIMA_PMU_POWER_UP 0x00
#define LIMA_PMU_POWER_DOWN 0x04
#define LIMA_PMU_POWER_GP0_MASK BIT(0)
#define LIMA_PMU_POWER_L2_MASK BIT(1)
#define LIMA_PMU_POWER_PP_MASK(i) BIT(2 + i)
/*
* On Mali450 each block automatically starts up its corresponding L2
* and the PPs are not fully independent controllable.
* Instead PP0, PP1-3 and PP4-7 can be turned on or off.
*/
#define LIMA450_PMU_POWER_PP0_MASK BIT(1)
#define LIMA450_PMU_POWER_PP13_MASK BIT(2)
#define LIMA450_PMU_POWER_PP47_MASK BIT(3)
#define LIMA_PMU_STATUS 0x08
#define LIMA_PMU_INT_MASK 0x0C
#define LIMA_PMU_INT_RAWSTAT 0x10
#define LIMA_PMU_INT_CLEAR 0x18
#define LIMA_PMU_INT_CMD_MASK BIT(0)
#define LIMA_PMU_SW_DELAY 0x1C
/* L2 cache regs */
#define LIMA_L2_CACHE_SIZE 0x0004
#define LIMA_L2_CACHE_STATUS 0x0008
#define LIMA_L2_CACHE_STATUS_COMMAND_BUSY BIT(0)
#define LIMA_L2_CACHE_STATUS_DATA_BUSY BIT(1)
#define LIMA_L2_CACHE_COMMAND 0x0010
#define LIMA_L2_CACHE_COMMAND_CLEAR_ALL BIT(0)
#define LIMA_L2_CACHE_CLEAR_PAGE 0x0014
#define LIMA_L2_CACHE_MAX_READS 0x0018
#define LIMA_L2_CACHE_ENABLE 0x001C
#define LIMA_L2_CACHE_ENABLE_ACCESS BIT(0)
#define LIMA_L2_CACHE_ENABLE_READ_ALLOCATE BIT(1)
#define LIMA_L2_CACHE_PERFCNT_SRC0 0x0020
#define LIMA_L2_CACHE_PERFCNT_VAL0 0x0024
#define LIMA_L2_CACHE_PERFCNT_SRC1 0x0028
#define LIMA_L2_CACHE_ERFCNT_VAL1 0x002C
/* GP regs */
#define LIMA_GP_VSCL_START_ADDR 0x00
#define LIMA_GP_VSCL_END_ADDR 0x04
#define LIMA_GP_PLBUCL_START_ADDR 0x08
#define LIMA_GP_PLBUCL_END_ADDR 0x0c
#define LIMA_GP_PLBU_ALLOC_START_ADDR 0x10
#define LIMA_GP_PLBU_ALLOC_END_ADDR 0x14
#define LIMA_GP_CMD 0x20
#define LIMA_GP_CMD_START_VS BIT(0)
#define LIMA_GP_CMD_START_PLBU BIT(1)
#define LIMA_GP_CMD_UPDATE_PLBU_ALLOC BIT(4)
#define LIMA_GP_CMD_RESET BIT(5)
#define LIMA_GP_CMD_FORCE_HANG BIT(6)
#define LIMA_GP_CMD_STOP_BUS BIT(9)
#define LIMA_GP_CMD_SOFT_RESET BIT(10)
#define LIMA_GP_INT_RAWSTAT 0x24
#define LIMA_GP_INT_CLEAR 0x28
#define LIMA_GP_INT_MASK 0x2C
#define LIMA_GP_INT_STAT 0x30
#define LIMA_GP_IRQ_VS_END_CMD_LST BIT(0)
#define LIMA_GP_IRQ_PLBU_END_CMD_LST BIT(1)
#define LIMA_GP_IRQ_PLBU_OUT_OF_MEM BIT(2)
#define LIMA_GP_IRQ_VS_SEM_IRQ BIT(3)
#define LIMA_GP_IRQ_PLBU_SEM_IRQ BIT(4)
#define LIMA_GP_IRQ_HANG BIT(5)
#define LIMA_GP_IRQ_FORCE_HANG BIT(6)
#define LIMA_GP_IRQ_PERF_CNT_0_LIMIT BIT(7)
#define LIMA_GP_IRQ_PERF_CNT_1_LIMIT BIT(8)
#define LIMA_GP_IRQ_WRITE_BOUND_ERR BIT(9)
#define LIMA_GP_IRQ_SYNC_ERROR BIT(10)
#define LIMA_GP_IRQ_AXI_BUS_ERROR BIT(11)
#define LIMA_GP_IRQ_AXI_BUS_STOPPED BIT(12)
#define LIMA_GP_IRQ_VS_INVALID_CMD BIT(13)
#define LIMA_GP_IRQ_PLB_INVALID_CMD BIT(14)
#define LIMA_GP_IRQ_RESET_COMPLETED BIT(19)
#define LIMA_GP_IRQ_SEMAPHORE_UNDERFLOW BIT(20)
#define LIMA_GP_IRQ_SEMAPHORE_OVERFLOW BIT(21)
#define LIMA_GP_IRQ_PTR_ARRAY_OUT_OF_BOUNDS BIT(22)
#define LIMA_GP_WRITE_BOUND_LOW 0x34
#define LIMA_GP_PERF_CNT_0_ENABLE 0x3C
#define LIMA_GP_PERF_CNT_1_ENABLE 0x40
#define LIMA_GP_PERF_CNT_0_SRC 0x44
#define LIMA_GP_PERF_CNT_1_SRC 0x48
#define LIMA_GP_PERF_CNT_0_VALUE 0x4C
#define LIMA_GP_PERF_CNT_1_VALUE 0x50
#define LIMA_GP_PERF_CNT_0_LIMIT 0x54
#define LIMA_GP_STATUS 0x68
#define LIMA_GP_STATUS_VS_ACTIVE BIT(1)
#define LIMA_GP_STATUS_BUS_STOPPED BIT(2)
#define LIMA_GP_STATUS_PLBU_ACTIVE BIT(3)
#define LIMA_GP_STATUS_BUS_ERROR BIT(6)
#define LIMA_GP_STATUS_WRITE_BOUND_ERR BIT(8)
#define LIMA_GP_VERSION 0x6C
#define LIMA_GP_VSCL_START_ADDR_READ 0x80
#define LIMA_GP_PLBCL_START_ADDR_READ 0x84
#define LIMA_GP_CONTR_AXI_BUS_ERROR_STAT 0x94
#define LIMA_GP_IRQ_MASK_ALL \
( \
LIMA_GP_IRQ_VS_END_CMD_LST | \
LIMA_GP_IRQ_PLBU_END_CMD_LST | \
LIMA_GP_IRQ_PLBU_OUT_OF_MEM | \
LIMA_GP_IRQ_VS_SEM_IRQ | \
LIMA_GP_IRQ_PLBU_SEM_IRQ | \
LIMA_GP_IRQ_HANG | \
LIMA_GP_IRQ_FORCE_HANG | \
LIMA_GP_IRQ_PERF_CNT_0_LIMIT | \
LIMA_GP_IRQ_PERF_CNT_1_LIMIT | \
LIMA_GP_IRQ_WRITE_BOUND_ERR | \
LIMA_GP_IRQ_SYNC_ERROR | \
LIMA_GP_IRQ_AXI_BUS_ERROR | \
LIMA_GP_IRQ_AXI_BUS_STOPPED | \
LIMA_GP_IRQ_VS_INVALID_CMD | \
LIMA_GP_IRQ_PLB_INVALID_CMD | \
LIMA_GP_IRQ_RESET_COMPLETED | \
LIMA_GP_IRQ_SEMAPHORE_UNDERFLOW | \
LIMA_GP_IRQ_SEMAPHORE_OVERFLOW | \
LIMA_GP_IRQ_PTR_ARRAY_OUT_OF_BOUNDS)
#define LIMA_GP_IRQ_MASK_ERROR \
( \
LIMA_GP_IRQ_PLBU_OUT_OF_MEM | \
LIMA_GP_IRQ_FORCE_HANG | \
LIMA_GP_IRQ_WRITE_BOUND_ERR | \
LIMA_GP_IRQ_SYNC_ERROR | \
LIMA_GP_IRQ_AXI_BUS_ERROR | \
LIMA_GP_IRQ_VS_INVALID_CMD | \
LIMA_GP_IRQ_PLB_INVALID_CMD | \
LIMA_GP_IRQ_SEMAPHORE_UNDERFLOW | \
LIMA_GP_IRQ_SEMAPHORE_OVERFLOW | \
LIMA_GP_IRQ_PTR_ARRAY_OUT_OF_BOUNDS)
#define LIMA_GP_IRQ_MASK_USED \
( \
LIMA_GP_IRQ_VS_END_CMD_LST | \
LIMA_GP_IRQ_PLBU_END_CMD_LST | \
LIMA_GP_IRQ_MASK_ERROR)
/* PP regs */
#define LIMA_PP_FRAME 0x0000
#define LIMA_PP_RSW 0x0004
#define LIMA_PP_STACK 0x0030
#define LIMA_PP_STACK_SIZE 0x0034
#define LIMA_PP_ORIGIN_OFFSET_X 0x0040
#define LIMA_PP_WB(i) (0x0100 * (i + 1))
#define LIMA_PP_WB_SOURCE_SELECT 0x0000
#define LIMA_PP_WB_SOURCE_ADDR 0x0004
#define LIMA_PP_VERSION 0x1000
#define LIMA_PP_CURRENT_REND_LIST_ADDR 0x1004
#define LIMA_PP_STATUS 0x1008
#define LIMA_PP_STATUS_RENDERING_ACTIVE BIT(0)
#define LIMA_PP_STATUS_BUS_STOPPED BIT(4)
#define LIMA_PP_CTRL 0x100c
#define LIMA_PP_CTRL_STOP_BUS BIT(0)
#define LIMA_PP_CTRL_FLUSH_CACHES BIT(3)
#define LIMA_PP_CTRL_FORCE_RESET BIT(5)
#define LIMA_PP_CTRL_START_RENDERING BIT(6)
#define LIMA_PP_CTRL_SOFT_RESET BIT(7)
#define LIMA_PP_INT_RAWSTAT 0x1020
#define LIMA_PP_INT_CLEAR 0x1024
#define LIMA_PP_INT_MASK 0x1028
#define LIMA_PP_INT_STATUS 0x102c
#define LIMA_PP_IRQ_END_OF_FRAME BIT(0)
#define LIMA_PP_IRQ_END_OF_TILE BIT(1)
#define LIMA_PP_IRQ_HANG BIT(2)
#define LIMA_PP_IRQ_FORCE_HANG BIT(3)
#define LIMA_PP_IRQ_BUS_ERROR BIT(4)
#define LIMA_PP_IRQ_BUS_STOP BIT(5)
#define LIMA_PP_IRQ_CNT_0_LIMIT BIT(6)
#define LIMA_PP_IRQ_CNT_1_LIMIT BIT(7)
#define LIMA_PP_IRQ_WRITE_BOUNDARY_ERROR BIT(8)
#define LIMA_PP_IRQ_INVALID_PLIST_COMMAND BIT(9)
#define LIMA_PP_IRQ_CALL_STACK_UNDERFLOW BIT(10)
#define LIMA_PP_IRQ_CALL_STACK_OVERFLOW BIT(11)
#define LIMA_PP_IRQ_RESET_COMPLETED BIT(12)
#define LIMA_PP_WRITE_BOUNDARY_LOW 0x1044
#define LIMA_PP_BUS_ERROR_STATUS 0x1050
#define LIMA_PP_PERF_CNT_0_ENABLE 0x1080
#define LIMA_PP_PERF_CNT_0_SRC 0x1084
#define LIMA_PP_PERF_CNT_0_LIMIT 0x1088
#define LIMA_PP_PERF_CNT_0_VALUE 0x108c
#define LIMA_PP_PERF_CNT_1_ENABLE 0x10a0
#define LIMA_PP_PERF_CNT_1_SRC 0x10a4
#define LIMA_PP_PERF_CNT_1_LIMIT 0x10a8
#define LIMA_PP_PERF_CNT_1_VALUE 0x10ac
#define LIMA_PP_PERFMON_CONTR 0x10b0
#define LIMA_PP_PERFMON_BASE 0x10b4
#define LIMA_PP_IRQ_MASK_ALL \
( \
LIMA_PP_IRQ_END_OF_FRAME | \
LIMA_PP_IRQ_END_OF_TILE | \
LIMA_PP_IRQ_HANG | \
LIMA_PP_IRQ_FORCE_HANG | \
LIMA_PP_IRQ_BUS_ERROR | \
LIMA_PP_IRQ_BUS_STOP | \
LIMA_PP_IRQ_CNT_0_LIMIT | \
LIMA_PP_IRQ_CNT_1_LIMIT | \
LIMA_PP_IRQ_WRITE_BOUNDARY_ERROR | \
LIMA_PP_IRQ_INVALID_PLIST_COMMAND | \
LIMA_PP_IRQ_CALL_STACK_UNDERFLOW | \
LIMA_PP_IRQ_CALL_STACK_OVERFLOW | \
LIMA_PP_IRQ_RESET_COMPLETED)
#define LIMA_PP_IRQ_MASK_ERROR \
( \
LIMA_PP_IRQ_FORCE_HANG | \
LIMA_PP_IRQ_BUS_ERROR | \
LIMA_PP_IRQ_WRITE_BOUNDARY_ERROR | \
LIMA_PP_IRQ_INVALID_PLIST_COMMAND | \
LIMA_PP_IRQ_CALL_STACK_UNDERFLOW | \
LIMA_PP_IRQ_CALL_STACK_OVERFLOW)
#define LIMA_PP_IRQ_MASK_USED \
( \
LIMA_PP_IRQ_END_OF_FRAME | \
LIMA_PP_IRQ_MASK_ERROR)
/* MMU regs */
#define LIMA_MMU_DTE_ADDR 0x0000
#define LIMA_MMU_STATUS 0x0004
#define LIMA_MMU_STATUS_PAGING_ENABLED BIT(0)
#define LIMA_MMU_STATUS_PAGE_FAULT_ACTIVE BIT(1)
#define LIMA_MMU_STATUS_STALL_ACTIVE BIT(2)
#define LIMA_MMU_STATUS_IDLE BIT(3)
#define LIMA_MMU_STATUS_REPLAY_BUFFER_EMPTY BIT(4)
#define LIMA_MMU_STATUS_PAGE_FAULT_IS_WRITE BIT(5)
#define LIMA_MMU_STATUS_BUS_ID(x) ((x >> 6) & 0x1F)
#define LIMA_MMU_COMMAND 0x0008
#define LIMA_MMU_COMMAND_ENABLE_PAGING 0x00
#define LIMA_MMU_COMMAND_DISABLE_PAGING 0x01
#define LIMA_MMU_COMMAND_ENABLE_STALL 0x02
#define LIMA_MMU_COMMAND_DISABLE_STALL 0x03
#define LIMA_MMU_COMMAND_ZAP_CACHE 0x04
#define LIMA_MMU_COMMAND_PAGE_FAULT_DONE 0x05
#define LIMA_MMU_COMMAND_HARD_RESET 0x06
#define LIMA_MMU_PAGE_FAULT_ADDR 0x000C
#define LIMA_MMU_ZAP_ONE_LINE 0x0010
#define LIMA_MMU_INT_RAWSTAT 0x0014
#define LIMA_MMU_INT_CLEAR 0x0018
#define LIMA_MMU_INT_MASK 0x001C
#define LIMA_MMU_INT_PAGE_FAULT BIT(0)
#define LIMA_MMU_INT_READ_BUS_ERROR BIT(1)
#define LIMA_MMU_INT_STATUS 0x0020
#define LIMA_VM_FLAG_PRESENT BIT(0)
#define LIMA_VM_FLAG_READ_PERMISSION BIT(1)
#define LIMA_VM_FLAG_WRITE_PERMISSION BIT(2)
#define LIMA_VM_FLAG_OVERRIDE_CACHE BIT(3)
#define LIMA_VM_FLAG_WRITE_CACHEABLE BIT(4)
#define LIMA_VM_FLAG_WRITE_ALLOCATE BIT(5)
#define LIMA_VM_FLAG_WRITE_BUFFERABLE BIT(6)
#define LIMA_VM_FLAG_READ_CACHEABLE BIT(7)
#define LIMA_VM_FLAG_READ_ALLOCATE BIT(8)
#define LIMA_VM_FLAG_MASK 0x1FF
#define LIMA_VM_FLAGS_CACHE ( \
LIMA_VM_FLAG_PRESENT | \
LIMA_VM_FLAG_READ_PERMISSION | \
LIMA_VM_FLAG_WRITE_PERMISSION | \
LIMA_VM_FLAG_OVERRIDE_CACHE | \
LIMA_VM_FLAG_WRITE_CACHEABLE | \
LIMA_VM_FLAG_WRITE_BUFFERABLE | \
LIMA_VM_FLAG_READ_CACHEABLE | \
LIMA_VM_FLAG_READ_ALLOCATE)
#define LIMA_VM_FLAGS_UNCACHE ( \
LIMA_VM_FLAG_PRESENT | \
LIMA_VM_FLAG_READ_PERMISSION | \
LIMA_VM_FLAG_WRITE_PERMISSION)
/* DLBU regs */
#define LIMA_DLBU_MASTER_TLLIST_PHYS_ADDR 0x0000
#define LIMA_DLBU_MASTER_TLLIST_VADDR 0x0004
#define LIMA_DLBU_TLLIST_VBASEADDR 0x0008
#define LIMA_DLBU_FB_DIM 0x000C
#define LIMA_DLBU_TLLIST_CONF 0x0010
#define LIMA_DLBU_START_TILE_POS 0x0014
#define LIMA_DLBU_PP_ENABLE_MASK 0x0018
/* BCAST regs */
#define LIMA_BCAST_BROADCAST_MASK 0x0
#define LIMA_BCAST_INTERRUPT_MASK 0x4
#endif

404
drivers/gpu/drm/lima/lima_sched.c Normal file
View File

@ -0,0 +1,404 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/kthread.h>
#include <linux/slab.h>
#include "lima_drv.h"
#include "lima_sched.h"
#include "lima_vm.h"
#include "lima_mmu.h"
#include "lima_l2_cache.h"
#include "lima_object.h"
struct lima_fence {
struct dma_fence base;
struct lima_sched_pipe *pipe;
};
static struct kmem_cache *lima_fence_slab;
static int lima_fence_slab_refcnt;
int lima_sched_slab_init(void)
{
if (!lima_fence_slab) {
lima_fence_slab = kmem_cache_create(
"lima_fence", sizeof(struct lima_fence), 0,
SLAB_HWCACHE_ALIGN, NULL);
if (!lima_fence_slab)
return -ENOMEM;
}
lima_fence_slab_refcnt++;
return 0;
}
void lima_sched_slab_fini(void)
{
if (!--lima_fence_slab_refcnt) {
kmem_cache_destroy(lima_fence_slab);
lima_fence_slab = NULL;
}
}
static inline struct lima_fence *to_lima_fence(struct dma_fence *fence)
{
return container_of(fence, struct lima_fence, base);
}
static const char *lima_fence_get_driver_name(struct dma_fence *fence)
{
return "lima";
}
static const char *lima_fence_get_timeline_name(struct dma_fence *fence)
{
struct lima_fence *f = to_lima_fence(fence);
return f->pipe->base.name;
}
static void lima_fence_release_rcu(struct rcu_head *rcu)
{
struct dma_fence *f = container_of(rcu, struct dma_fence, rcu);
struct lima_fence *fence = to_lima_fence(f);
kmem_cache_free(lima_fence_slab, fence);
}
static void lima_fence_release(struct dma_fence *fence)
{
struct lima_fence *f = to_lima_fence(fence);
call_rcu(&f->base.rcu, lima_fence_release_rcu);
}
static const struct dma_fence_ops lima_fence_ops = {
.get_driver_name = lima_fence_get_driver_name,
.get_timeline_name = lima_fence_get_timeline_name,
.release = lima_fence_release,
};
static struct lima_fence *lima_fence_create(struct lima_sched_pipe *pipe)
{
struct lima_fence *fence;
fence = kmem_cache_zalloc(lima_fence_slab, GFP_KERNEL);
if (!fence)
return NULL;
fence->pipe = pipe;
dma_fence_init(&fence->base, &lima_fence_ops, &pipe->fence_lock,
pipe->fence_context, ++pipe->fence_seqno);
return fence;
}
static inline struct lima_sched_task *to_lima_task(struct drm_sched_job *job)
{
return container_of(job, struct lima_sched_task, base);
}
static inline struct lima_sched_pipe *to_lima_pipe(struct drm_gpu_scheduler *sched)
{
return container_of(sched, struct lima_sched_pipe, base);
}
int lima_sched_task_init(struct lima_sched_task *task,
struct lima_sched_context *context,
struct lima_bo **bos, int num_bos,
struct lima_vm *vm)
{
int err, i;
task->bos = kmemdup(bos, sizeof(*bos) * num_bos, GFP_KERNEL);
if (!task->bos)
return -ENOMEM;
for (i = 0; i < num_bos; i++)
drm_gem_object_get(&bos[i]->gem);
err = drm_sched_job_init(&task->base, &context->base, vm);
if (err) {
kfree(task->bos);
return err;
}
task->num_bos = num_bos;
task->vm = lima_vm_get(vm);
return 0;
}
void lima_sched_task_fini(struct lima_sched_task *task)
{
int i;
drm_sched_job_cleanup(&task->base);
for (i = 0; i < task->num_dep; i++)
dma_fence_put(task->dep[i]);
kfree(task->dep);
if (task->bos) {
for (i = 0; i < task->num_bos; i++)
drm_gem_object_put_unlocked(&task->bos[i]->gem);
kfree(task->bos);
}
lima_vm_put(task->vm);
}
int lima_sched_task_add_dep(struct lima_sched_task *task, struct dma_fence *fence)
{
int i, new_dep = 4;
/* same context's fence is definitly earlier then this task */
if (fence->context == task->base.s_fence->finished.context) {
dma_fence_put(fence);
return 0;
}
if (task->dep && task->num_dep == task->max_dep)
new_dep = task->max_dep * 2;
if (task->max_dep < new_dep) {
void *dep = krealloc(task->dep, sizeof(*task->dep) * new_dep, GFP_KERNEL);
if (!dep)
return -ENOMEM;
task->max_dep = new_dep;
task->dep = dep;
}
for (i = 0; i < task->num_dep; i++) {
if (task->dep[i]->context == fence->context &&
dma_fence_is_later(fence, task->dep[i])) {
dma_fence_put(task->dep[i]);
task->dep[i] = fence;
return 0;
}
}
task->dep[task->num_dep++] = fence;
return 0;
}
int lima_sched_context_init(struct lima_sched_pipe *pipe,
struct lima_sched_context *context,
atomic_t *guilty)
{
struct drm_sched_rq *rq = pipe->base.sched_rq + DRM_SCHED_PRIORITY_NORMAL;
return drm_sched_entity_init(&context->base, &rq, 1, guilty);
}
void lima_sched_context_fini(struct lima_sched_pipe *pipe,
struct lima_sched_context *context)
{
drm_sched_entity_fini(&context->base);
}
struct dma_fence *lima_sched_context_queue_task(struct lima_sched_context *context,
struct lima_sched_task *task)
{
struct dma_fence *fence = dma_fence_get(&task->base.s_fence->finished);
drm_sched_entity_push_job(&task->base, &context->base);
return fence;
}
static struct dma_fence *lima_sched_dependency(struct drm_sched_job *job,
struct drm_sched_entity *entity)
{
struct lima_sched_task *task = to_lima_task(job);
int i;
for (i = 0; i < task->num_dep; i++) {
struct dma_fence *fence = task->dep[i];
if (!task->dep[i])
continue;
task->dep[i] = NULL;
if (!dma_fence_is_signaled(fence))
return fence;
dma_fence_put(fence);
}
return NULL;
}
static struct dma_fence *lima_sched_run_job(struct drm_sched_job *job)
{
struct lima_sched_task *task = to_lima_task(job);
struct lima_sched_pipe *pipe = to_lima_pipe(job->sched);
struct lima_fence *fence;
struct dma_fence *ret;
struct lima_vm *vm = NULL, *last_vm = NULL;
int i;
/* after GPU reset */
if (job->s_fence->finished.error < 0)
return NULL;
fence = lima_fence_create(pipe);
if (!fence)
return NULL;
task->fence = &fence->base;
/* for caller usage of the fence, otherwise irq handler
* may consume the fence before caller use it
*/
ret = dma_fence_get(task->fence);
pipe->current_task = task;
/* this is needed for MMU to work correctly, otherwise GP/PP
* will hang or page fault for unknown reason after running for
* a while.
*
* Need to investigate:
* 1. is it related to TLB
* 2. how much performance will be affected by L2 cache flush
* 3. can we reduce the calling of this function because all
* GP/PP use the same L2 cache on mali400
*
* TODO:
* 1. move this to task fini to save some wait time?
* 2. when GP/PP use different l2 cache, need PP wait GP l2
* cache flush?
*/
for (i = 0; i < pipe->num_l2_cache; i++)
lima_l2_cache_flush(pipe->l2_cache[i]);
if (task->vm != pipe->current_vm) {
vm = lima_vm_get(task->vm);
last_vm = pipe->current_vm;
pipe->current_vm = task->vm;
}
if (pipe->bcast_mmu)
lima_mmu_switch_vm(pipe->bcast_mmu, vm);
else {
for (i = 0; i < pipe->num_mmu; i++)
lima_mmu_switch_vm(pipe->mmu[i], vm);
}
if (last_vm)
lima_vm_put(last_vm);
pipe->error = false;
pipe->task_run(pipe, task);
return task->fence;
}
static void lima_sched_handle_error_task(struct lima_sched_pipe *pipe,
struct lima_sched_task *task)
{
drm_sched_stop(&pipe->base);
if (task)
drm_sched_increase_karma(&task->base);
pipe->task_error(pipe);
if (pipe->bcast_mmu)
lima_mmu_page_fault_resume(pipe->bcast_mmu);
else {
int i;
for (i = 0; i < pipe->num_mmu; i++)
lima_mmu_page_fault_resume(pipe->mmu[i]);
}
if (pipe->current_vm)
lima_vm_put(pipe->current_vm);
pipe->current_vm = NULL;
pipe->current_task = NULL;
drm_sched_resubmit_jobs(&pipe->base);
drm_sched_start(&pipe->base, true);
}
static void lima_sched_timedout_job(struct drm_sched_job *job)
{
struct lima_sched_pipe *pipe = to_lima_pipe(job->sched);
struct lima_sched_task *task = to_lima_task(job);
DRM_ERROR("lima job timeout\n");
lima_sched_handle_error_task(pipe, task);
}
static void lima_sched_free_job(struct drm_sched_job *job)
{
struct lima_sched_task *task = to_lima_task(job);
struct lima_sched_pipe *pipe = to_lima_pipe(job->sched);
struct lima_vm *vm = task->vm;
struct lima_bo **bos = task->bos;
int i;
dma_fence_put(task->fence);
for (i = 0; i < task->num_bos; i++)
lima_vm_bo_del(vm, bos[i]);
lima_sched_task_fini(task);
kmem_cache_free(pipe->task_slab, task);
}
const struct drm_sched_backend_ops lima_sched_ops = {
.dependency = lima_sched_dependency,
.run_job = lima_sched_run_job,
.timedout_job = lima_sched_timedout_job,
.free_job = lima_sched_free_job,
};
static void lima_sched_error_work(struct work_struct *work)
{
struct lima_sched_pipe *pipe =
container_of(work, struct lima_sched_pipe, error_work);
struct lima_sched_task *task = pipe->current_task;
lima_sched_handle_error_task(pipe, task);
}
int lima_sched_pipe_init(struct lima_sched_pipe *pipe, const char *name)
{
long timeout;
if (lima_sched_timeout_ms <= 0)
timeout = MAX_SCHEDULE_TIMEOUT;
else
timeout = msecs_to_jiffies(lima_sched_timeout_ms);
pipe->fence_context = dma_fence_context_alloc(1);
spin_lock_init(&pipe->fence_lock);
INIT_WORK(&pipe->error_work, lima_sched_error_work);
return drm_sched_init(&pipe->base, &lima_sched_ops, 1, 0, timeout, name);
}
void lima_sched_pipe_fini(struct lima_sched_pipe *pipe)
{
drm_sched_fini(&pipe->base);
}
void lima_sched_pipe_task_done(struct lima_sched_pipe *pipe)
{
if (pipe->error)
schedule_work(&pipe->error_work);
else {
struct lima_sched_task *task = pipe->current_task;
pipe->task_fini(pipe);
dma_fence_signal(task->fence);
}
}

104
drivers/gpu/drm/lima/lima_sched.h Normal file
View File

@ -0,0 +1,104 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_SCHED_H__
#define __LIMA_SCHED_H__
#include <drm/gpu_scheduler.h>
struct lima_vm;
struct lima_sched_task {
struct drm_sched_job base;
struct lima_vm *vm;
void *frame;
struct dma_fence **dep;
int num_dep;
int max_dep;
struct lima_bo **bos;
int num_bos;
/* pipe fence */
struct dma_fence *fence;
};
struct lima_sched_context {
struct drm_sched_entity base;
};
#define LIMA_SCHED_PIPE_MAX_MMU 8
#define LIMA_SCHED_PIPE_MAX_L2_CACHE 2
#define LIMA_SCHED_PIPE_MAX_PROCESSOR 8
struct lima_ip;
struct lima_sched_pipe {
struct drm_gpu_scheduler base;
u64 fence_context;
u32 fence_seqno;
spinlock_t fence_lock;
struct lima_sched_task *current_task;
struct lima_vm *current_vm;
struct lima_ip *mmu[LIMA_SCHED_PIPE_MAX_MMU];
int num_mmu;
struct lima_ip *l2_cache[LIMA_SCHED_PIPE_MAX_L2_CACHE];
int num_l2_cache;
struct lima_ip *processor[LIMA_SCHED_PIPE_MAX_PROCESSOR];
int num_processor;
struct lima_ip *bcast_processor;
struct lima_ip *bcast_mmu;
u32 done;
bool error;
atomic_t task;
int frame_size;
struct kmem_cache *task_slab;
int (*task_validate)(struct lima_sched_pipe *pipe, struct lima_sched_task *task);
void (*task_run)(struct lima_sched_pipe *pipe, struct lima_sched_task *task);
void (*task_fini)(struct lima_sched_pipe *pipe);
void (*task_error)(struct lima_sched_pipe *pipe);
void (*task_mmu_error)(struct lima_sched_pipe *pipe);
struct work_struct error_work;
};
int lima_sched_task_init(struct lima_sched_task *task,
struct lima_sched_context *context,
struct lima_bo **bos, int num_bos,
struct lima_vm *vm);
void lima_sched_task_fini(struct lima_sched_task *task);
int lima_sched_task_add_dep(struct lima_sched_task *task, struct dma_fence *fence);
int lima_sched_context_init(struct lima_sched_pipe *pipe,
struct lima_sched_context *context,
atomic_t *guilty);
void lima_sched_context_fini(struct lima_sched_pipe *pipe,
struct lima_sched_context *context);
struct dma_fence *lima_sched_context_queue_task(struct lima_sched_context *context,
struct lima_sched_task *task);
int lima_sched_pipe_init(struct lima_sched_pipe *pipe, const char *name);
void lima_sched_pipe_fini(struct lima_sched_pipe *pipe);
void lima_sched_pipe_task_done(struct lima_sched_pipe *pipe);
static inline void lima_sched_pipe_mmu_error(struct lima_sched_pipe *pipe)
{
pipe->error = true;
pipe->task_mmu_error(pipe);
}
int lima_sched_slab_init(void);
void lima_sched_slab_fini(void);
#endif

282
drivers/gpu/drm/lima/lima_vm.c Normal file
View File

@ -0,0 +1,282 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/slab.h>
#include <linux/dma-mapping.h>
#include "lima_device.h"
#include "lima_vm.h"
#include "lima_object.h"
#include "lima_regs.h"
struct lima_bo_va {
struct list_head list;
unsigned int ref_count;
struct drm_mm_node node;
struct lima_vm *vm;
};
#define LIMA_VM_PD_SHIFT 22
#define LIMA_VM_PT_SHIFT 12
#define LIMA_VM_PB_SHIFT (LIMA_VM_PD_SHIFT + LIMA_VM_NUM_PT_PER_BT_SHIFT)
#define LIMA_VM_BT_SHIFT LIMA_VM_PT_SHIFT
#define LIMA_VM_PT_MASK ((1 << LIMA_VM_PD_SHIFT) - 1)
#define LIMA_VM_BT_MASK ((1 << LIMA_VM_PB_SHIFT) - 1)
#define LIMA_PDE(va) (va >> LIMA_VM_PD_SHIFT)
#define LIMA_PTE(va) ((va & LIMA_VM_PT_MASK) >> LIMA_VM_PT_SHIFT)
#define LIMA_PBE(va) (va >> LIMA_VM_PB_SHIFT)
#define LIMA_BTE(va) ((va & LIMA_VM_BT_MASK) >> LIMA_VM_BT_SHIFT)
static void lima_vm_unmap_page_table(struct lima_vm *vm, u32 start, u32 end)
{
u32 addr;
for (addr = start; addr <= end; addr += LIMA_PAGE_SIZE) {
u32 pbe = LIMA_PBE(addr);
u32 bte = LIMA_BTE(addr);
vm->bts[pbe].cpu[bte] = 0;
}
}
static int lima_vm_map_page_table(struct lima_vm *vm, dma_addr_t *dma,
u32 start, u32 end)
{
u64 addr;
int i = 0;
for (addr = start; addr <= end; addr += LIMA_PAGE_SIZE) {
u32 pbe = LIMA_PBE(addr);
u32 bte = LIMA_BTE(addr);
if (!vm->bts[pbe].cpu) {
dma_addr_t pts;
u32 *pd;
int j;
vm->bts[pbe].cpu = dma_alloc_wc(
vm->dev->dev, LIMA_PAGE_SIZE << LIMA_VM_NUM_PT_PER_BT_SHIFT,
&vm->bts[pbe].dma, GFP_KERNEL | __GFP_ZERO);
if (!vm->bts[pbe].cpu) {
if (addr != start)
lima_vm_unmap_page_table(vm, start, addr - 1);
return -ENOMEM;
}
pts = vm->bts[pbe].dma;
pd = vm->pd.cpu + (pbe << LIMA_VM_NUM_PT_PER_BT_SHIFT);
for (j = 0; j < LIMA_VM_NUM_PT_PER_BT; j++) {
pd[j] = pts | LIMA_VM_FLAG_PRESENT;
pts += LIMA_PAGE_SIZE;
}
}
vm->bts[pbe].cpu[bte] = dma[i++] | LIMA_VM_FLAGS_CACHE;
}
return 0;
}
static struct lima_bo_va *
lima_vm_bo_find(struct lima_vm *vm, struct lima_bo *bo)
{
struct lima_bo_va *bo_va, *ret = NULL;
list_for_each_entry(bo_va, &bo->va, list) {
if (bo_va->vm == vm) {
ret = bo_va;
break;
}
}
return ret;
}
int lima_vm_bo_add(struct lima_vm *vm, struct lima_bo *bo, bool create)
{
struct lima_bo_va *bo_va;
int err;
mutex_lock(&bo->lock);
bo_va = lima_vm_bo_find(vm, bo);
if (bo_va) {
bo_va->ref_count++;
mutex_unlock(&bo->lock);
return 0;
}
/* should not create new bo_va if not asked by caller */
if (!create) {
mutex_unlock(&bo->lock);
return -ENOENT;
}
bo_va = kzalloc(sizeof(*bo_va), GFP_KERNEL);
if (!bo_va) {
err = -ENOMEM;
goto err_out0;
}
bo_va->vm = vm;
bo_va->ref_count = 1;
mutex_lock(&vm->lock);
err = drm_mm_insert_node(&vm->mm, &bo_va->node, bo->gem.size);
if (err)
goto err_out1;
err = lima_vm_map_page_table(vm, bo->pages_dma_addr, bo_va->node.start,
bo_va->node.start + bo_va->node.size - 1);
if (err)
goto err_out2;
mutex_unlock(&vm->lock);
list_add_tail(&bo_va->list, &bo->va);
mutex_unlock(&bo->lock);
return 0;
err_out2:
drm_mm_remove_node(&bo_va->node);
err_out1:
mutex_unlock(&vm->lock);
kfree(bo_va);
err_out0:
mutex_unlock(&bo->lock);
return err;
}
void lima_vm_bo_del(struct lima_vm *vm, struct lima_bo *bo)
{
struct lima_bo_va *bo_va;
mutex_lock(&bo->lock);
bo_va = lima_vm_bo_find(vm, bo);
if (--bo_va->ref_count > 0) {
mutex_unlock(&bo->lock);
return;
}
mutex_lock(&vm->lock);
lima_vm_unmap_page_table(vm, bo_va->node.start,
bo_va->node.start + bo_va->node.size - 1);
drm_mm_remove_node(&bo_va->node);
mutex_unlock(&vm->lock);
list_del(&bo_va->list);
mutex_unlock(&bo->lock);
kfree(bo_va);
}
u32 lima_vm_get_va(struct lima_vm *vm, struct lima_bo *bo)
{
struct lima_bo_va *bo_va;
u32 ret;
mutex_lock(&bo->lock);
bo_va = lima_vm_bo_find(vm, bo);
ret = bo_va->node.start;
mutex_unlock(&bo->lock);
return ret;
}
struct lima_vm *lima_vm_create(struct lima_device *dev)
{
struct lima_vm *vm;
vm = kzalloc(sizeof(*vm), GFP_KERNEL);
if (!vm)
return NULL;
vm->dev = dev;
mutex_init(&vm->lock);
kref_init(&vm->refcount);
vm->pd.cpu = dma_alloc_wc(dev->dev, LIMA_PAGE_SIZE, &vm->pd.dma,
GFP_KERNEL | __GFP_ZERO);
if (!vm->pd.cpu)
goto err_out0;
if (dev->dlbu_cpu) {
int err = lima_vm_map_page_table(
vm, &dev->dlbu_dma, LIMA_VA_RESERVE_DLBU,
LIMA_VA_RESERVE_DLBU + LIMA_PAGE_SIZE - 1);
if (err)
goto err_out1;
}
drm_mm_init(&vm->mm, dev->va_start, dev->va_end - dev->va_start);
return vm;
err_out1:
dma_free_wc(dev->dev, LIMA_PAGE_SIZE, vm->pd.cpu, vm->pd.dma);
err_out0:
kfree(vm);
return NULL;
}
void lima_vm_release(struct kref *kref)
{
struct lima_vm *vm = container_of(kref, struct lima_vm, refcount);
int i;
drm_mm_takedown(&vm->mm);
for (i = 0; i < LIMA_VM_NUM_BT; i++) {
if (vm->bts[i].cpu)
dma_free_wc(vm->dev->dev, LIMA_PAGE_SIZE << LIMA_VM_NUM_PT_PER_BT_SHIFT,
vm->bts[i].cpu, vm->bts[i].dma);
}
if (vm->pd.cpu)
dma_free_wc(vm->dev->dev, LIMA_PAGE_SIZE, vm->pd.cpu, vm->pd.dma);
kfree(vm);
}
void lima_vm_print(struct lima_vm *vm)
{
int i, j, k;
u32 *pd, *pt;
if (!vm->pd.cpu)
return;
pd = vm->pd.cpu;
for (i = 0; i < LIMA_VM_NUM_BT; i++) {
if (!vm->bts[i].cpu)
continue;
pt = vm->bts[i].cpu;
for (j = 0; j < LIMA_VM_NUM_PT_PER_BT; j++) {
int idx = (i << LIMA_VM_NUM_PT_PER_BT_SHIFT) + j;
printk(KERN_INFO "lima vm pd %03x:%08x\n", idx, pd[idx]);
for (k = 0; k < LIMA_PAGE_ENT_NUM; k++) {
u32 pte = *pt++;
if (pte)
printk(KERN_INFO " pt %03x:%08x\n", k, pte);
}
}
}
}

62
drivers/gpu/drm/lima/lima_vm.h Normal file
View File

@ -0,0 +1,62 @@
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_VM_H__
#define __LIMA_VM_H__
#include <drm/drm_mm.h>
#include <linux/kref.h>
#define LIMA_PAGE_SIZE 4096
#define LIMA_PAGE_MASK (LIMA_PAGE_SIZE - 1)
#define LIMA_PAGE_ENT_NUM (LIMA_PAGE_SIZE / sizeof(u32))
#define LIMA_VM_NUM_PT_PER_BT_SHIFT 3
#define LIMA_VM_NUM_PT_PER_BT (1 << LIMA_VM_NUM_PT_PER_BT_SHIFT)
#define LIMA_VM_NUM_BT (LIMA_PAGE_ENT_NUM >> LIMA_VM_NUM_PT_PER_BT_SHIFT)
#define LIMA_VA_RESERVE_START 0xFFF00000
#define LIMA_VA_RESERVE_DLBU LIMA_VA_RESERVE_START
#define LIMA_VA_RESERVE_END 0x100000000
struct lima_device;
struct lima_vm_page {
u32 *cpu;
dma_addr_t dma;
};
struct lima_vm {
struct mutex lock;
struct kref refcount;
struct drm_mm mm;
struct lima_device *dev;
struct lima_vm_page pd;
struct lima_vm_page bts[LIMA_VM_NUM_BT];
};
int lima_vm_bo_add(struct lima_vm *vm, struct lima_bo *bo, bool create);
void lima_vm_bo_del(struct lima_vm *vm, struct lima_bo *bo);
u32 lima_vm_get_va(struct lima_vm *vm, struct lima_bo *bo);
struct lima_vm *lima_vm_create(struct lima_device *dev);
void lima_vm_release(struct kref *kref);
static inline struct lima_vm *lima_vm_get(struct lima_vm *vm)
{
kref_get(&vm->refcount);
return vm;
}
static inline void lima_vm_put(struct lima_vm *vm)
{
kref_put(&vm->refcount, lima_vm_release);
}
void lima_vm_print(struct lima_vm *vm);
#endif

22
drivers/gpu/drm/panel/Kconfig
View File

@ -38,6 +38,15 @@ config DRM_PANEL_SIMPLE
that it can be automatically turned off when the panel goes into a
low power state.
config DRM_PANEL_FEIYANG_FY07024DI26A30D
tristate "Feiyang FY07024DI26A30-D MIPI-DSI LCD panel"
depends on OF
depends on DRM_MIPI_DSI
depends on BACKLIGHT_CLASS_DEVICE
help
Say Y if you want to enable support for panels based on the
Feiyang FY07024DI26A30-D MIPI-DSI interface.
config DRM_PANEL_ILITEK_IL9322
tristate "Ilitek ILI9322 320x240 QVGA panels"
depends on OF && SPI
@ -149,6 +158,19 @@ config DRM_PANEL_RAYDIUM_RM68200
Say Y here if you want to enable support for Raydium RM68200
720x1280 DSI video mode panel.
config DRM_PANEL_ROCKTECH_JH057N00900
tristate "Rocktech JH057N00900 MIPI touchscreen panel"
depends on OF
depends on DRM_MIPI_DSI
depends on BACKLIGHT_CLASS_DEVICE
help
Say Y here if you want to enable support for Rocktech JH057N00900
MIPI DSI panel as e.g. used in the Librem 5 devkit. It has a
resolution of 720x1440 pixels, a built in backlight and touch
controller.
Touch input support is provided by the goodix driver and needs to be
selected separately.
config DRM_PANEL_RONBO_RB070D30
tristate "Ronbo Electronics RB070D30 panel"
depends on OF

2
drivers/gpu/drm/panel/Makefile
View File

@ -2,6 +2,7 @@
obj-$(CONFIG_DRM_PANEL_ARM_VERSATILE) += panel-arm-versatile.o
obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o
obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o
obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) += panel-feiyang-fy07024di26a30d.o
obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) += panel-ilitek-ili9322.o
obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9881C) += panel-ilitek-ili9881c.o
obj-$(CONFIG_DRM_PANEL_INNOLUX_P079ZCA) += panel-innolux-p079zca.o
@ -13,6 +14,7 @@ obj-$(CONFIG_DRM_PANEL_ORISETECH_OTM8009A) += panel-orisetech-otm8009a.o
obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o
obj-$(CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN) += panel-raspberrypi-touchscreen.o
obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM68200) += panel-raydium-rm68200.o
obj-$(CONFIG_DRM_PANEL_ROCKTECH_JH057N00900) += panel-rocktech-jh057n00900.o
obj-$(CONFIG_DRM_PANEL_RONBO_RB070D30) += panel-ronbo-rb070d30.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6D16D0) += panel-samsung-s6d16d0.o

272
drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c Normal file
View File

@ -0,0 +1,272 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2018 Amarula Solutions
* Author: Jagan Teki <jagan@amarulasolutions.com>
*/
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
#include <drm/drm_print.h>
#include <linux/backlight.h>
#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/regulator/consumer.h>
#define FEIYANG_INIT_CMD_LEN 2
struct feiyang {
struct drm_panel panel;
struct mipi_dsi_device *dsi;
struct backlight_device *backlight;
struct regulator *dvdd;
struct regulator *avdd;
struct gpio_desc *reset;
};
static inline struct feiyang *panel_to_feiyang(struct drm_panel *panel)
{
return container_of(panel, struct feiyang, panel);
}
struct feiyang_init_cmd {
u8 data[FEIYANG_INIT_CMD_LEN];
};
static const struct feiyang_init_cmd feiyang_init_cmds[] = {
{ .data = { 0x80, 0x58 } },
{ .data = { 0x81, 0x47 } },
{ .data = { 0x82, 0xD4 } },
{ .data = { 0x83, 0x88 } },
{ .data = { 0x84, 0xA9 } },
{ .data = { 0x85, 0xC3 } },
{ .data = { 0x86, 0x82 } },
};
static int feiyang_prepare(struct drm_panel *panel)
{
struct feiyang *ctx = panel_to_feiyang(panel);
struct mipi_dsi_device *dsi = ctx->dsi;
unsigned int i;
int ret;
ret = regulator_enable(ctx->dvdd);
if (ret)
return ret;
/* T1 (dvdd start + dvdd rise) 0 < T1 <= 10ms */
msleep(10);
ret = regulator_enable(ctx->avdd);
if (ret)
return ret;
/* T3 (dvdd rise + avdd start + avdd rise) T3 >= 20ms */
msleep(20);
gpiod_set_value(ctx->reset, 0);
/*
* T5 + T6 (avdd rise + video & logic signal rise)
* T5 >= 10ms, 0 < T6 <= 10ms
*/
msleep(20);
gpiod_set_value(ctx->reset, 1);
/* T12 (video & logic signal rise + backlight rise) T12 >= 200ms */
msleep(200);
for (i = 0; i < ARRAY_SIZE(feiyang_init_cmds); i++) {
const struct feiyang_init_cmd *cmd =
&feiyang_init_cmds[i];
ret = mipi_dsi_dcs_write_buffer(dsi, cmd->data,
FEIYANG_INIT_CMD_LEN);
if (ret < 0)
return ret;
}
return 0;
}
static int feiyang_enable(struct drm_panel *panel)
{
struct feiyang *ctx = panel_to_feiyang(panel);
/* T12 (video & logic signal rise + backlight rise) T12 >= 200ms */
msleep(200);
mipi_dsi_dcs_set_display_on(ctx->dsi);
backlight_enable(ctx->backlight);
return 0;
}
static int feiyang_disable(struct drm_panel *panel)
{
struct feiyang *ctx = panel_to_feiyang(panel);
backlight_disable(ctx->backlight);
return mipi_dsi_dcs_set_display_off(ctx->dsi);
}
static int feiyang_unprepare(struct drm_panel *panel)
{
struct feiyang *ctx = panel_to_feiyang(panel);
int ret;
ret = mipi_dsi_dcs_set_display_off(ctx->dsi);
if (ret < 0)
DRM_DEV_ERROR(panel->dev, "failed to set display off: %d\n",
ret);
ret = mipi_dsi_dcs_enter_sleep_mode(ctx->dsi);
if (ret < 0)
DRM_DEV_ERROR(panel->dev, "failed to enter sleep mode: %d\n",
ret);
/* T13 (backlight fall + video & logic signal fall) T13 >= 200ms */
msleep(200);
gpiod_set_value(ctx->reset, 0);
regulator_disable(ctx->avdd);
/* T11 (dvdd rise to fall) 0 < T11 <= 10ms */
msleep(10);
regulator_disable(ctx->dvdd);
return 0;
}
static const struct drm_display_mode feiyang_default_mode = {
.clock = 55000,
.hdisplay = 1024,
.hsync_start = 1024 + 310,
.hsync_end = 1024 + 310 + 20,
.htotal = 1024 + 310 + 20 + 90,
.vdisplay = 600,
.vsync_start = 600 + 12,
.vsync_end = 600 + 12 + 2,
.vtotal = 600 + 12 + 2 + 21,
.vrefresh = 60,
.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
};
static int feiyang_get_modes(struct drm_panel *panel)
{
struct drm_connector *connector = panel->connector;
struct feiyang *ctx = panel_to_feiyang(panel);
struct drm_display_mode *mode;
mode = drm_mode_duplicate(panel->drm, &feiyang_default_mode);
if (!mode) {
DRM_DEV_ERROR(&ctx->dsi->dev, "failed to add mode %ux%ux@%u\n",
feiyang_default_mode.hdisplay,
feiyang_default_mode.vdisplay,
feiyang_default_mode.vrefresh);
return -ENOMEM;
}
drm_mode_set_name(mode);
drm_mode_probed_add(connector, mode);
return 1;
}
static const struct drm_panel_funcs feiyang_funcs = {
.disable = feiyang_disable,
.unprepare = feiyang_unprepare,
.prepare = feiyang_prepare,
.enable = feiyang_enable,
.get_modes = feiyang_get_modes,
};
static int feiyang_dsi_probe(struct mipi_dsi_device *dsi)
{
struct feiyang *ctx;
int ret;
ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
mipi_dsi_set_drvdata(dsi, ctx);
ctx->dsi = dsi;
drm_panel_init(&ctx->panel);
ctx->panel.dev = &dsi->dev;
ctx->panel.funcs = &feiyang_funcs;
ctx->dvdd = devm_regulator_get(&dsi->dev, "dvdd");
if (IS_ERR(ctx->dvdd)) {
DRM_DEV_ERROR(&dsi->dev, "Couldn't get dvdd regulator\n");
return PTR_ERR(ctx->dvdd);
}
ctx->avdd = devm_regulator_get(&dsi->dev, "avdd");
if (IS_ERR(ctx->avdd)) {
DRM_DEV_ERROR(&dsi->dev, "Couldn't get avdd regulator\n");
return PTR_ERR(ctx->avdd);
}
ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(ctx->reset)) {
DRM_DEV_ERROR(&dsi->dev, "Couldn't get our reset GPIO\n");
return PTR_ERR(ctx->reset);
}
ctx->backlight = devm_of_find_backlight(&dsi->dev);
if (IS_ERR(ctx->backlight))
return PTR_ERR(ctx->backlight);
ret = drm_panel_add(&ctx->panel);
if (ret < 0)
return ret;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO_BURST;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->lanes = 4;
return mipi_dsi_attach(dsi);
}
static int feiyang_dsi_remove(struct mipi_dsi_device *dsi)
{
struct feiyang *ctx = mipi_dsi_get_drvdata(dsi);
mipi_dsi_detach(dsi);
drm_panel_remove(&ctx->panel);
return 0;
}
static const struct of_device_id feiyang_of_match[] = {
{ .compatible = "feiyang,fy07024di26a30d", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, feiyang_of_match);
static struct mipi_dsi_driver feiyang_driver = {
.probe = feiyang_dsi_probe,
.remove = feiyang_dsi_remove,
.driver = {
.name = "feiyang-fy07024di26a30d",
.of_match_table = feiyang_of_match,
},
};
module_mipi_dsi_driver(feiyang_driver);
MODULE_AUTHOR("Jagan Teki <jagan@amarulasolutions.com>");
MODULE_DESCRIPTION("Feiyang FY07024DI26A30-D MIPI-DSI LCD panel");
MODULE_LICENSE("GPL");

20
drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
View File

@ -67,15 +67,15 @@ struct otm8009a {
};
static const struct drm_display_mode default_mode = {
.clock = 32729,
.clock = 29700,
.hdisplay = 480,
.hsync_start = 480 + 120,
.hsync_end = 480 + 120 + 63,
.htotal = 480 + 120 + 63 + 120,
.hsync_start = 480 + 98,
.hsync_end = 480 + 98 + 32,
.htotal = 480 + 98 + 32 + 98,
.vdisplay = 800,
.vsync_start = 800 + 12,
.vsync_end = 800 + 12 + 12,
.vtotal = 800 + 12 + 12 + 12,
.vsync_start = 800 + 15,
.vsync_end = 800 + 15 + 10,
.vtotal = 800 + 15 + 10 + 14,
.vrefresh = 50,
.flags = 0,
.width_mm = 52,
@ -248,6 +248,9 @@ static int otm8009a_init_sequence(struct otm8009a *ctx)
/* Send Command GRAM memory write (no parameters) */
dcs_write_seq(ctx, MIPI_DCS_WRITE_MEMORY_START);
/* Wait a short while to let the panel be ready before the 1st frame */
mdelay(10);
return 0;
}
@ -433,7 +436,8 @@ static int otm8009a_probe(struct mipi_dsi_device *dsi)
ctx->supply = devm_regulator_get(dev, "power");
if (IS_ERR(ctx->supply)) {
ret = PTR_ERR(ctx->supply);
dev_err(dev, "failed to request regulator: %d\n", ret);
if (ret != -EPROBE_DEFER)
dev_err(dev, "failed to request regulator: %d\n", ret);
return ret;
}

3
drivers/gpu/drm/panel/panel-raydium-rm68200.c
View File

@ -383,7 +383,8 @@ static int rm68200_probe(struct mipi_dsi_device *dsi)
ctx->supply = devm_regulator_get(dev, "power");
if (IS_ERR(ctx->supply)) {
ret = PTR_ERR(ctx->supply);
dev_err(dev, "cannot get regulator: %d\n", ret);
if (ret != -EPROBE_DEFER)
dev_err(dev, "cannot get regulator: %d\n", ret);
return ret;
}

386
drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c Normal file
View File

@ -0,0 +1,386 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Rockteck jh057n00900 5.5" MIPI-DSI panel driver
*
* Copyright (C) Purism SPC 2019
*/
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
#include <drm/drm_print.h>
#include <linux/backlight.h>
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/media-bus-format.h>
#include <linux/module.h>
#include <video/display_timing.h>
#include <video/mipi_display.h>
#define DRV_NAME "panel-rocktech-jh057n00900"
/* Manufacturer specific Commands send via DSI */
#define ST7703_CMD_ALL_PIXEL_OFF 0x22
#define ST7703_CMD_ALL_PIXEL_ON 0x23
#define ST7703_CMD_SETDISP 0xB2
#define ST7703_CMD_SETRGBIF 0xB3
#define ST7703_CMD_SETCYC 0xB4
#define ST7703_CMD_SETBGP 0xB5
#define ST7703_CMD_SETVCOM 0xB6
#define ST7703_CMD_SETOTP 0xB7
#define ST7703_CMD_SETPOWER_EXT 0xB8
#define ST7703_CMD_SETEXTC 0xB9
#define ST7703_CMD_SETMIPI 0xBA
#define ST7703_CMD_SETVDC 0xBC
#define ST7703_CMD_SETSCR 0xC0
#define ST7703_CMD_SETPOWER 0xC1
#define ST7703_CMD_SETPANEL 0xCC
#define ST7703_CMD_SETGAMMA 0xE0
#define ST7703_CMD_SETEQ 0xE3
#define ST7703_CMD_SETGIP1 0xE9
#define ST7703_CMD_SETGIP2 0xEA
struct jh057n {
struct device *dev;
struct drm_panel panel;
struct gpio_desc *reset_gpio;
struct backlight_device *backlight;
bool prepared;
struct dentry *debugfs;
};
static inline struct jh057n *panel_to_jh057n(struct drm_panel *panel)
{
return container_of(panel, struct jh057n, panel);
}
#define dsi_generic_write_seq(dsi, seq...) do { \
static const u8 d[] = { seq }; \
int ret; \
ret = mipi_dsi_generic_write(dsi, d, ARRAY_SIZE(d)); \
if (ret < 0) \
return ret; \
} while (0)
static int jh057n_init_sequence(struct jh057n *ctx)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
struct device *dev = ctx->dev;
int ret;
/*
* Init sequence was supplied by the panel vendor. Most of the commands
* resemble the ST7703 but the number of parameters often don't match
* so it's likely a clone.
*/
dsi_generic_write_seq(dsi, ST7703_CMD_SETEXTC,
0xF1, 0x12, 0x83);
dsi_generic_write_seq(dsi, ST7703_CMD_SETRGBIF,
0x10, 0x10, 0x05, 0x05, 0x03, 0xFF, 0x00, 0x00,
0x00, 0x00);
dsi_generic_write_seq(dsi, ST7703_CMD_SETSCR,
0x73, 0x73, 0x50, 0x50, 0x00, 0x00, 0x08, 0x70,
0x00);
dsi_generic_write_seq(dsi, ST7703_CMD_SETVDC, 0x4E);
dsi_generic_write_seq(dsi, ST7703_CMD_SETPANEL, 0x0B);
dsi_generic_write_seq(dsi, ST7703_CMD_SETCYC, 0x80);
dsi_generic_write_seq(dsi, ST7703_CMD_SETDISP, 0xF0, 0x12, 0x30);
dsi_generic_write_seq(dsi, ST7703_CMD_SETEQ,
0x07, 0x07, 0x0B, 0x0B, 0x03, 0x0B, 0x00, 0x00,
0x00, 0x00, 0xFF, 0x00, 0xC0, 0x10);
dsi_generic_write_seq(dsi, ST7703_CMD_SETBGP, 0x08, 0x08);
msleep(20);
dsi_generic_write_seq(dsi, ST7703_CMD_SETVCOM, 0x3F, 0x3F);
dsi_generic_write_seq(dsi, 0xBF, 0x02, 0x11, 0x00);
dsi_generic_write_seq(dsi, ST7703_CMD_SETGIP1,
0x82, 0x10, 0x06, 0x05, 0x9E, 0x0A, 0xA5, 0x12,
0x31, 0x23, 0x37, 0x83, 0x04, 0xBC, 0x27, 0x38,
0x0C, 0x00, 0x03, 0x00, 0x00, 0x00, 0x0C, 0x00,
0x03, 0x00, 0x00, 0x00, 0x75, 0x75, 0x31, 0x88,
0x88, 0x88, 0x88, 0x88, 0x88, 0x13, 0x88, 0x64,
0x64, 0x20, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88,
0x02, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
dsi_generic_write_seq(dsi, ST7703_CMD_SETGIP2,
0x02, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x02, 0x46, 0x02, 0x88,
0x88, 0x88, 0x88, 0x88, 0x88, 0x64, 0x88, 0x13,
0x57, 0x13, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88,
0x75, 0x88, 0x23, 0x14, 0x00, 0x00, 0x02, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0A,
0xA5, 0x00, 0x00, 0x00, 0x00);
dsi_generic_write_seq(dsi, ST7703_CMD_SETGAMMA,
0x00, 0x09, 0x0E, 0x29, 0x2D, 0x3C, 0x41, 0x37,
0x07, 0x0B, 0x0D, 0x10, 0x11, 0x0F, 0x10, 0x11,
0x18, 0x00, 0x09, 0x0E, 0x29, 0x2D, 0x3C, 0x41,
0x37, 0x07, 0x0B, 0x0D, 0x10, 0x11, 0x0F, 0x10,
0x11, 0x18);
msleep(20);
ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
if (ret < 0) {
DRM_DEV_ERROR(dev, "Failed to exit sleep mode");
return ret;
}
/* Panel is operational 120 msec after reset */
msleep(60);
ret = mipi_dsi_dcs_set_display_on(dsi);
if (ret)
return ret;
DRM_DEV_DEBUG_DRIVER(dev, "Panel init sequence done");
return 0;
}
static int jh057n_enable(struct drm_panel *panel)
{
struct jh057n *ctx = panel_to_jh057n(panel);
return backlight_enable(ctx->backlight);
}
static int jh057n_disable(struct drm_panel *panel)
{
struct jh057n *ctx = panel_to_jh057n(panel);
return backlight_disable(ctx->backlight);
}
static int jh057n_unprepare(struct drm_panel *panel)
{
struct jh057n *ctx = panel_to_jh057n(panel);
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
if (!ctx->prepared)
return 0;
mipi_dsi_dcs_set_display_off(dsi);
ctx->prepared = false;
return 0;
}
static int jh057n_prepare(struct drm_panel *panel)
{
struct jh057n *ctx = panel_to_jh057n(panel);
int ret;
if (ctx->prepared)
return 0;
DRM_DEV_DEBUG_DRIVER(ctx->dev, "Resetting the panel.");
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
usleep_range(20, 40);
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
msleep(20);
ret = jh057n_init_sequence(ctx);
if (ret < 0) {
DRM_DEV_ERROR(ctx->dev, "Panel init sequence failed: %d", ret);
return ret;
}
ctx->prepared = true;
return 0;
}
static const struct drm_display_mode default_mode = {
.hdisplay = 720,
.hsync_start = 720 + 90,
.hsync_end = 720 + 90 + 20,
.htotal = 720 + 90 + 20 + 20,
.vdisplay = 1440,
.vsync_start = 1440 + 20,
.vsync_end = 1440 + 20 + 4,
.vtotal = 1440 + 20 + 4 + 12,
.vrefresh = 60,
.clock = 75276,
.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
.width_mm = 65,
.height_mm = 130,
};
static int jh057n_get_modes(struct drm_panel *panel)
{
struct jh057n *ctx = panel_to_jh057n(panel);
struct drm_display_mode *mode;
mode = drm_mode_duplicate(panel->drm, &default_mode);
if (!mode) {
DRM_DEV_ERROR(ctx->dev, "Failed to add mode %ux%u@%u",
default_mode.hdisplay, default_mode.vdisplay,
default_mode.vrefresh);
return -ENOMEM;
}
drm_mode_set_name(mode);
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
panel->connector->display_info.width_mm = mode->width_mm;
panel->connector->display_info.height_mm = mode->height_mm;
drm_mode_probed_add(panel->connector, mode);
return 1;
}
static const struct drm_panel_funcs jh057n_drm_funcs = {
.disable = jh057n_disable,
.unprepare = jh057n_unprepare,
.prepare = jh057n_prepare,
.enable = jh057n_enable,
.get_modes = jh057n_get_modes,
};
static int allpixelson_set(void *data, u64 val)
{
struct jh057n *ctx = data;
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
DRM_DEV_DEBUG_DRIVER(ctx->dev, "Setting all pixels on");
dsi_generic_write_seq(dsi, ST7703_CMD_ALL_PIXEL_ON);
msleep(val * 1000);
/* Reset the panel to get video back */
drm_panel_disable(&ctx->panel);
drm_panel_unprepare(&ctx->panel);
drm_panel_prepare(&ctx->panel);
drm_panel_enable(&ctx->panel);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(allpixelson_fops, NULL,
allpixelson_set, "%llu\n");
static int jh057n_debugfs_init(struct jh057n *ctx)
{
struct dentry *f;
ctx->debugfs = debugfs_create_dir(DRV_NAME, NULL);
if (!ctx->debugfs)
return -ENOMEM;
f = debugfs_create_file("allpixelson", 0600,
ctx->debugfs, ctx, &allpixelson_fops);
if (!f)
return -ENOMEM;
return 0;
}
static void jh057n_debugfs_remove(struct jh057n *ctx)
{
debugfs_remove_recursive(ctx->debugfs);
ctx->debugfs = NULL;
}
static int jh057n_probe(struct mipi_dsi_device *dsi)
{
struct device *dev = &dsi->dev;
struct jh057n *ctx;
int ret;
ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(ctx->reset_gpio)) {
DRM_DEV_ERROR(dev, "cannot get reset gpio");
return PTR_ERR(ctx->reset_gpio);
}
mipi_dsi_set_drvdata(dsi, ctx);
ctx->dev = dev;
dsi->lanes = 4;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO |
MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_VIDEO_SYNC_PULSE;
ctx->backlight = devm_of_find_backlight(dev);
if (IS_ERR(ctx->backlight))
return PTR_ERR(ctx->backlight);
drm_panel_init(&ctx->panel);
ctx->panel.dev = dev;
ctx->panel.funcs = &jh057n_drm_funcs;
drm_panel_add(&ctx->panel);
ret = mipi_dsi_attach(dsi);
if (ret < 0) {
DRM_DEV_ERROR(dev, "mipi_dsi_attach failed. Is host ready?");
drm_panel_remove(&ctx->panel);
return ret;
}
DRM_DEV_INFO(dev, "%ux%u@%u %ubpp dsi %udl - ready",
default_mode.hdisplay, default_mode.vdisplay,
default_mode.vrefresh,
mipi_dsi_pixel_format_to_bpp(dsi->format), dsi->lanes);
jh057n_debugfs_init(ctx);
return 0;
}
static void jh057n_shutdown(struct mipi_dsi_device *dsi)
{
struct jh057n *ctx = mipi_dsi_get_drvdata(dsi);
int ret;
ret = jh057n_unprepare(&ctx->panel);
if (ret < 0)
DRM_DEV_ERROR(&dsi->dev, "Failed to unprepare panel: %d\n",
ret);
ret = jh057n_disable(&ctx->panel);
if (ret < 0)
DRM_DEV_ERROR(&dsi->dev, "Failed to disable panel: %d\n",
ret);
}
static int jh057n_remove(struct mipi_dsi_device *dsi)
{
struct jh057n *ctx = mipi_dsi_get_drvdata(dsi);
int ret;
jh057n_shutdown(dsi);
ret = mipi_dsi_detach(dsi);
if (ret < 0)
DRM_DEV_ERROR(&dsi->dev, "Failed to detach from DSI host: %d\n",
ret);
drm_panel_remove(&ctx->panel);
jh057n_debugfs_remove(ctx);
return 0;
}
static const struct of_device_id jh057n_of_match[] = {
{ .compatible = "rocktech,jh057n00900" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, jh057n_of_match);
static struct mipi_dsi_driver jh057n_driver = {
.probe = jh057n_probe,
.remove = jh057n_remove,
.shutdown = jh057n_shutdown,
.driver = {
.name = DRV_NAME,
.of_match_table = jh057n_of_match,
},
};
module_mipi_dsi_driver(jh057n_driver);
MODULE_AUTHOR("Guido Günther <agx@sigxcpu.org>");
MODULE_DESCRIPTION("DRM driver for Rocktech JH057N00900 MIPI DSI panel");
MODULE_LICENSE("GPL v2");

8
drivers/gpu/drm/rockchip/Kconfig
View File

@ -77,4 +77,12 @@ config ROCKCHIP_RGB
Some Rockchip CRTCs, like rv1108, can directly output parallel
and serial RGB format to panel or connect to a conversion chip.
say Y to enable its driver.
config ROCKCHIP_RK3066_HDMI
bool "Rockchip specific extensions for RK3066 HDMI"
depends on DRM_ROCKCHIP
help
This selects support for Rockchip SoC specific extensions
for the RK3066 HDMI driver. If you want to enable
HDMI on RK3066 based SoC, you should select this option.
endif

1
drivers/gpu/drm/rockchip/Makefile
View File

@ -15,5 +15,6 @@ rockchipdrm-$(CONFIG_ROCKCHIP_DW_MIPI_DSI) += dw-mipi-dsi-rockchip.o
rockchipdrm-$(CONFIG_ROCKCHIP_INNO_HDMI) += inno_hdmi.o
rockchipdrm-$(CONFIG_ROCKCHIP_LVDS) += rockchip_lvds.o
rockchipdrm-$(CONFIG_ROCKCHIP_RGB) += rockchip_rgb.o
rockchipdrm-$(CONFIG_ROCKCHIP_RK3066_HDMI) += rk3066_hdmi.o
obj-$(CONFIG_DRM_ROCKCHIP) += rockchipdrm.o

876
drivers/gpu/drm/rockchip/rk3066_hdmi.c Normal file
View File

@ -0,0 +1,876 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
* Zheng Yang <zhengyang@rock-chips.com>
*/
#include <drm/drm_of.h>
#include <drm/drm_probe_helper.h>
#include <linux/clk.h>
#include <linux/mfd/syscon.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include "rk3066_hdmi.h"
#include "rockchip_drm_drv.h"
#include "rockchip_drm_vop.h"
#define DEFAULT_PLLA_RATE 30000000
struct hdmi_data_info {
int vic; /* The CEA Video ID (VIC) of the current drm display mode. */
bool sink_is_hdmi;
unsigned int enc_out_format;
unsigned int colorimetry;
};
struct rk3066_hdmi_i2c {
struct i2c_adapter adap;
u8 ddc_addr;
u8 segment_addr;
u8 stat;
struct mutex i2c_lock; /* For i2c operation. */
struct completion cmpltn;
};
struct rk3066_hdmi {
struct device *dev;
struct drm_device *drm_dev;
struct regmap *grf_regmap;
int irq;
struct clk *hclk;
void __iomem *regs;
struct drm_connector connector;
struct drm_encoder encoder;
struct rk3066_hdmi_i2c *i2c;
struct i2c_adapter *ddc;
unsigned int tmdsclk;
struct hdmi_data_info hdmi_data;
struct drm_display_mode previous_mode;
};
#define to_rk3066_hdmi(x) container_of(x, struct rk3066_hdmi, x)
static inline u8 hdmi_readb(struct rk3066_hdmi *hdmi, u16 offset)
{
return readl_relaxed(hdmi->regs + offset);
}
static inline void hdmi_writeb(struct rk3066_hdmi *hdmi, u16 offset, u32 val)
{
writel_relaxed(val, hdmi->regs + offset);
}
static inline void hdmi_modb(struct rk3066_hdmi *hdmi, u16 offset,
u32 msk, u32 val)
{
u8 temp = hdmi_readb(hdmi, offset) & ~msk;
temp |= val & msk;
hdmi_writeb(hdmi, offset, temp);
}
static void rk3066_hdmi_i2c_init(struct rk3066_hdmi *hdmi)
{
int ddc_bus_freq;
ddc_bus_freq = (hdmi->tmdsclk >> 2) / HDMI_SCL_RATE;
hdmi_writeb(hdmi, HDMI_DDC_BUS_FREQ_L, ddc_bus_freq & 0xFF);
hdmi_writeb(hdmi, HDMI_DDC_BUS_FREQ_H, (ddc_bus_freq >> 8) & 0xFF);
/* Clear the EDID interrupt flag and mute the interrupt. */
hdmi_modb(hdmi, HDMI_INTR_MASK1, HDMI_INTR_EDID_MASK, 0);
hdmi_writeb(hdmi, HDMI_INTR_STATUS1, HDMI_INTR_EDID_MASK);
}
static inline u8 rk3066_hdmi_get_power_mode(struct rk3066_hdmi *hdmi)
{
return hdmi_readb(hdmi, HDMI_SYS_CTRL) & HDMI_SYS_POWER_MODE_MASK;
}
static void rk3066_hdmi_set_power_mode(struct rk3066_hdmi *hdmi, int mode)
{
u8 current_mode, next_mode;
u8 i = 0;
current_mode = rk3066_hdmi_get_power_mode(hdmi);
DRM_DEV_DEBUG(hdmi->dev, "mode :%d\n", mode);
DRM_DEV_DEBUG(hdmi->dev, "current_mode :%d\n", current_mode);
if (current_mode == mode)
return;
do {
if (current_mode > mode) {
next_mode = current_mode / 2;
} else {
if (current_mode < HDMI_SYS_POWER_MODE_A)
next_mode = HDMI_SYS_POWER_MODE_A;
else
next_mode = current_mode * 2;
}
DRM_DEV_DEBUG(hdmi->dev, "%d: next_mode :%d\n", i, next_mode);
if (next_mode != HDMI_SYS_POWER_MODE_D) {
hdmi_modb(hdmi, HDMI_SYS_CTRL,
HDMI_SYS_POWER_MODE_MASK, next_mode);
} else {
hdmi_writeb(hdmi, HDMI_SYS_CTRL,
HDMI_SYS_POWER_MODE_D |
HDMI_SYS_PLL_RESET_MASK);
usleep_range(90, 100);
hdmi_writeb(hdmi, HDMI_SYS_CTRL,
HDMI_SYS_POWER_MODE_D |
HDMI_SYS_PLLB_RESET);
usleep_range(90, 100);
hdmi_writeb(hdmi, HDMI_SYS_CTRL,
HDMI_SYS_POWER_MODE_D);
}
current_mode = next_mode;
i = i + 1;
} while ((next_mode != mode) && (i < 5));
/*
* When the IP controller isn't configured with accurate video timing,
* DDC_CLK should be equal to the PLLA frequency, which is 30MHz,
* so we need to init the TMDS rate to the PCLK rate and reconfigure
* the DDC clock.
*/
if (mode < HDMI_SYS_POWER_MODE_D)
hdmi->tmdsclk = DEFAULT_PLLA_RATE;
}
static int
rk3066_hdmi_upload_frame(struct rk3066_hdmi *hdmi, int setup_rc,
union hdmi_infoframe *frame, u32 frame_index,
u32 mask, u32 disable, u32 enable)
{
if (mask)
hdmi_modb(hdmi, HDMI_CP_AUTO_SEND_CTRL, mask, disable);
hdmi_writeb(hdmi, HDMI_CP_BUF_INDEX, frame_index);
if (setup_rc >= 0) {
u8 packed_frame[HDMI_MAXIMUM_INFO_FRAME_SIZE];
ssize_t rc, i;
rc = hdmi_infoframe_pack(frame, packed_frame,
sizeof(packed_frame));
if (rc < 0)
return rc;
for (i = 0; i < rc; i++)
hdmi_writeb(hdmi, HDMI_CP_BUF_ACC_HB0 + i * 4,
packed_frame[i]);
if (mask)
hdmi_modb(hdmi, HDMI_CP_AUTO_SEND_CTRL, mask, enable);
}
return setup_rc;
}
static int rk3066_hdmi_config_avi(struct rk3066_hdmi *hdmi,
struct drm_display_mode *mode)
{
union hdmi_infoframe frame;
int rc;
rc = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
&hdmi->connector, mode);
if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV444)
frame.avi.colorspace = HDMI_COLORSPACE_YUV444;
else if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV422)
frame.avi.colorspace = HDMI_COLORSPACE_YUV422;
else
frame.avi.colorspace = HDMI_COLORSPACE_RGB;
frame.avi.colorimetry = hdmi->hdmi_data.colorimetry;
frame.avi.scan_mode = HDMI_SCAN_MODE_NONE;
return rk3066_hdmi_upload_frame(hdmi, rc, &frame,
HDMI_INFOFRAME_AVI, 0, 0, 0);
}
static int rk3066_hdmi_config_video_timing(struct rk3066_hdmi *hdmi,
struct drm_display_mode *mode)
{
int value, vsync_offset;
/* Set the details for the external polarity and interlace mode. */
value = HDMI_EXT_VIDEO_SET_EN;
value |= mode->flags & DRM_MODE_FLAG_PHSYNC ?
HDMI_VIDEO_HSYNC_ACTIVE_HIGH : HDMI_VIDEO_HSYNC_ACTIVE_LOW;
value |= mode->flags & DRM_MODE_FLAG_PVSYNC ?
HDMI_VIDEO_VSYNC_ACTIVE_HIGH : HDMI_VIDEO_VSYNC_ACTIVE_LOW;
value |= mode->flags & DRM_MODE_FLAG_INTERLACE ?
HDMI_VIDEO_MODE_INTERLACE : HDMI_VIDEO_MODE_PROGRESSIVE;
if (hdmi->hdmi_data.vic == 2 || hdmi->hdmi_data.vic == 3)
vsync_offset = 6;
else
vsync_offset = 0;
value |= vsync_offset << HDMI_VIDEO_VSYNC_OFFSET_SHIFT;
hdmi_writeb(hdmi, HDMI_EXT_VIDEO_PARA, value);
/* Set the details for the external video timing. */
value = mode->htotal;
hdmi_writeb(hdmi, HDMI_EXT_HTOTAL_L, value & 0xFF);
hdmi_writeb(hdmi, HDMI_EXT_HTOTAL_H, (value >> 8) & 0xFF);
value = mode->htotal - mode->hdisplay;
hdmi_writeb(hdmi, HDMI_EXT_HBLANK_L, value & 0xFF);
hdmi_writeb(hdmi, HDMI_EXT_HBLANK_H, (value >> 8) & 0xFF);
value = mode->htotal - mode->hsync_start;
hdmi_writeb(hdmi, HDMI_EXT_HDELAY_L, value & 0xFF);
hdmi_writeb(hdmi, HDMI_EXT_HDELAY_H, (value >> 8) & 0xFF);
value = mode->hsync_end - mode->hsync_start;
hdmi_writeb(hdmi, HDMI_EXT_HDURATION_L, value & 0xFF);
hdmi_writeb(hdmi, HDMI_EXT_HDURATION_H, (value >> 8) & 0xFF);
value = mode->vtotal;
hdmi_writeb(hdmi, HDMI_EXT_VTOTAL_L, value & 0xFF);
hdmi_writeb(hdmi, HDMI_EXT_VTOTAL_H, (value >> 8) & 0xFF);
value = mode->vtotal - mode->vdisplay;
hdmi_writeb(hdmi, HDMI_EXT_VBLANK_L, value & 0xFF);
value = mode->vtotal - mode->vsync_start + vsync_offset;
hdmi_writeb(hdmi, HDMI_EXT_VDELAY, value & 0xFF);
value = mode->vsync_end - mode->vsync_start;
hdmi_writeb(hdmi, HDMI_EXT_VDURATION, value & 0xFF);
return 0;
}
static void
rk3066_hdmi_phy_write(struct rk3066_hdmi *hdmi, u16 offset, u8 value)
{
hdmi_writeb(hdmi, offset, value);
hdmi_modb(hdmi, HDMI_SYS_CTRL,
HDMI_SYS_PLL_RESET_MASK, HDMI_SYS_PLL_RESET);
usleep_range(90, 100);
hdmi_modb(hdmi, HDMI_SYS_CTRL, HDMI_SYS_PLL_RESET_MASK, 0);
usleep_range(900, 1000);
}
static void rk3066_hdmi_config_phy(struct rk3066_hdmi *hdmi)
{
/* TMDS uses the same frequency as dclk. */
hdmi_writeb(hdmi, HDMI_DEEP_COLOR_MODE, 0x22);
/*
* The semi-public documentation does not describe the hdmi registers
* used by the function rk3066_hdmi_phy_write(), so we keep using
* these magic values for now.
*/
if (hdmi->tmdsclk > 100000000) {
rk3066_hdmi_phy_write(hdmi, 0x158, 0x0E);
rk3066_hdmi_phy_write(hdmi, 0x15c, 0x00);
rk3066_hdmi_phy_write(hdmi, 0x160, 0x60);
rk3066_hdmi_phy_write(hdmi, 0x164, 0x00);
rk3066_hdmi_phy_write(hdmi, 0x168, 0xDA);
rk3066_hdmi_phy_write(hdmi, 0x16c, 0xA1);
rk3066_hdmi_phy_write(hdmi, 0x170, 0x0e);
rk3066_hdmi_phy_write(hdmi, 0x174, 0x22);
rk3066_hdmi_phy_write(hdmi, 0x178, 0x00);
} else if (hdmi->tmdsclk > 50000000) {
rk3066_hdmi_phy_write(hdmi, 0x158, 0x06);
rk3066_hdmi_phy_write(hdmi, 0x15c, 0x00);
rk3066_hdmi_phy_write(hdmi, 0x160, 0x60);
rk3066_hdmi_phy_write(hdmi, 0x164, 0x00);
rk3066_hdmi_phy_write(hdmi, 0x168, 0xCA);
rk3066_hdmi_phy_write(hdmi, 0x16c, 0xA3);
rk3066_hdmi_phy_write(hdmi, 0x170, 0x0e);
rk3066_hdmi_phy_write(hdmi, 0x174, 0x20);
rk3066_hdmi_phy_write(hdmi, 0x178, 0x00);
} else {
rk3066_hdmi_phy_write(hdmi, 0x158, 0x02);
rk3066_hdmi_phy_write(hdmi, 0x15c, 0x00);
rk3066_hdmi_phy_write(hdmi, 0x160, 0x60);
rk3066_hdmi_phy_write(hdmi, 0x164, 0x00);
rk3066_hdmi_phy_write(hdmi, 0x168, 0xC2);
rk3066_hdmi_phy_write(hdmi, 0x16c, 0xA2);
rk3066_hdmi_phy_write(hdmi, 0x170, 0x0e);
rk3066_hdmi_phy_write(hdmi, 0x174, 0x20);
rk3066_hdmi_phy_write(hdmi, 0x178, 0x00);
}
}
static int rk3066_hdmi_setup(struct rk3066_hdmi *hdmi,
struct drm_display_mode *mode)
{
hdmi->hdmi_data.vic = drm_match_cea_mode(mode);
hdmi->hdmi_data.enc_out_format = HDMI_COLORSPACE_RGB;
if (hdmi->hdmi_data.vic == 6 || hdmi->hdmi_data.vic == 7 ||
hdmi->hdmi_data.vic == 21 || hdmi->hdmi_data.vic == 22 ||
hdmi->hdmi_data.vic == 2 || hdmi->hdmi_data.vic == 3 ||
hdmi->hdmi_data.vic == 17 || hdmi->hdmi_data.vic == 18)
hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_601;
else
hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_709;
hdmi->tmdsclk = mode->clock * 1000;
/* Mute video and audio output. */
hdmi_modb(hdmi, HDMI_VIDEO_CTRL2, HDMI_VIDEO_AUDIO_DISABLE_MASK,
HDMI_AUDIO_DISABLE | HDMI_VIDEO_DISABLE);
/* Set power state to mode B. */
if (rk3066_hdmi_get_power_mode(hdmi) != HDMI_SYS_POWER_MODE_B)
rk3066_hdmi_set_power_mode(hdmi, HDMI_SYS_POWER_MODE_B);
/* Input video mode is RGB 24 bit. Use external data enable signal. */
hdmi_modb(hdmi, HDMI_AV_CTRL1,
HDMI_VIDEO_DE_MASK, HDMI_VIDEO_EXTERNAL_DE);
hdmi_writeb(hdmi, HDMI_VIDEO_CTRL1,
HDMI_VIDEO_OUTPUT_RGB444 |
HDMI_VIDEO_INPUT_DATA_DEPTH_8BIT |
HDMI_VIDEO_INPUT_COLOR_RGB);
hdmi_writeb(hdmi, HDMI_DEEP_COLOR_MODE, 0x20);
rk3066_hdmi_config_video_timing(hdmi, mode);
if (hdmi->hdmi_data.sink_is_hdmi) {
hdmi_modb(hdmi, HDMI_HDCP_CTRL, HDMI_VIDEO_MODE_MASK,
HDMI_VIDEO_MODE_HDMI);
rk3066_hdmi_config_avi(hdmi, mode);
} else {
hdmi_modb(hdmi, HDMI_HDCP_CTRL, HDMI_VIDEO_MODE_MASK, 0);
}
rk3066_hdmi_config_phy(hdmi);
rk3066_hdmi_set_power_mode(hdmi, HDMI_SYS_POWER_MODE_E);
/*
* When the IP controller is configured with accurate video
* timing, the TMDS clock source should be switched to
* DCLK_LCDC, so we need to init the TMDS rate to the pixel mode
* clock rate and reconfigure the DDC clock.
*/
rk3066_hdmi_i2c_init(hdmi);
/* Unmute video output. */
hdmi_modb(hdmi, HDMI_VIDEO_CTRL2,
HDMI_VIDEO_AUDIO_DISABLE_MASK, HDMI_AUDIO_DISABLE);
return 0;
}
static void
rk3066_hdmi_encoder_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adj_mode)
{
struct rk3066_hdmi *hdmi = to_rk3066_hdmi(encoder);
/* Store the display mode for plugin/DPMS poweron events. */
memcpy(&hdmi->previous_mode, adj_mode, sizeof(hdmi->previous_mode));
}
static void rk3066_hdmi_encoder_enable(struct drm_encoder *encoder)
{
struct rk3066_hdmi *hdmi = to_rk3066_hdmi(encoder);
int mux, val;
mux = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, encoder);
if (mux)
val = (HDMI_VIDEO_SEL << 16) | HDMI_VIDEO_SEL;
else
val = HDMI_VIDEO_SEL << 16;
regmap_write(hdmi->grf_regmap, GRF_SOC_CON0, val);
DRM_DEV_DEBUG(hdmi->dev, "hdmi encoder enable select: vop%s\n",
(mux) ? "1" : "0");
rk3066_hdmi_setup(hdmi, &hdmi->previous_mode);
}
static void rk3066_hdmi_encoder_disable(struct drm_encoder *encoder)
{
struct rk3066_hdmi *hdmi = to_rk3066_hdmi(encoder);
DRM_DEV_DEBUG(hdmi->dev, "hdmi encoder disable\n");
if (rk3066_hdmi_get_power_mode(hdmi) == HDMI_SYS_POWER_MODE_E) {
hdmi_writeb(hdmi, HDMI_VIDEO_CTRL2,
HDMI_VIDEO_AUDIO_DISABLE_MASK);
hdmi_modb(hdmi, HDMI_VIDEO_CTRL2,
HDMI_AUDIO_CP_LOGIC_RESET_MASK,
HDMI_AUDIO_CP_LOGIC_RESET);
usleep_range(500, 510);
}
rk3066_hdmi_set_power_mode(hdmi, HDMI_SYS_POWER_MODE_A);
}
static bool
rk3066_hdmi_encoder_mode_fixup(struct drm_encoder *encoder,
const struct drm_display_mode *mode,
struct drm_display_mode *adj_mode)
{
return true;
}
static int
rk3066_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
struct drm_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
{
struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state);
s->output_mode = ROCKCHIP_OUT_MODE_P888;
s->output_type = DRM_MODE_CONNECTOR_HDMIA;
return 0;
}
static const
struct drm_encoder_helper_funcs rk3066_hdmi_encoder_helper_funcs = {
.enable = rk3066_hdmi_encoder_enable,
.disable = rk3066_hdmi_encoder_disable,
.mode_fixup = rk3066_hdmi_encoder_mode_fixup,
.mode_set = rk3066_hdmi_encoder_mode_set,
.atomic_check = rk3066_hdmi_encoder_atomic_check,
};
static const struct drm_encoder_funcs rk3066_hdmi_encoder_funcs = {
.destroy = drm_encoder_cleanup,
};
static enum drm_connector_status
rk3066_hdmi_connector_detect(struct drm_connector *connector, bool force)
{
struct rk3066_hdmi *hdmi = to_rk3066_hdmi(connector);
return (hdmi_readb(hdmi, HDMI_HPG_MENS_STA) & HDMI_HPG_IN_STATUS_HIGH) ?
connector_status_connected : connector_status_disconnected;
}
static int rk3066_hdmi_connector_get_modes(struct drm_connector *connector)
{
struct rk3066_hdmi *hdmi = to_rk3066_hdmi(connector);
struct edid *edid;
int ret = 0;
if (!hdmi->ddc)
return 0;
edid = drm_get_edid(connector, hdmi->ddc);
if (edid) {
hdmi->hdmi_data.sink_is_hdmi = drm_detect_hdmi_monitor(edid);
drm_connector_update_edid_property(connector, edid);
ret = drm_add_edid_modes(connector, edid);
kfree(edid);
}
return ret;
}
static enum drm_mode_status
rk3066_hdmi_connector_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
u32 vic = drm_match_cea_mode(mode);
if (vic > 1)
return MODE_OK;
else
return MODE_BAD;
}
static struct drm_encoder *
rk3066_hdmi_connector_best_encoder(struct drm_connector *connector)
{
struct rk3066_hdmi *hdmi = to_rk3066_hdmi(connector);
return &hdmi->encoder;
}
static int
rk3066_hdmi_probe_single_connector_modes(struct drm_connector *connector,
uint32_t maxX, uint32_t maxY)
{
if (maxX > 1920)
maxX = 1920;
if (maxY > 1080)
maxY = 1080;
return drm_helper_probe_single_connector_modes(connector, maxX, maxY);
}
static void rk3066_hdmi_connector_destroy(struct drm_connector *connector)
{
drm_connector_unregister(connector);
drm_connector_cleanup(connector);
}
static const struct drm_connector_funcs rk3066_hdmi_connector_funcs = {
.fill_modes = rk3066_hdmi_probe_single_connector_modes,
.detect = rk3066_hdmi_connector_detect,
.destroy = rk3066_hdmi_connector_destroy,
.reset = drm_atomic_helper_connector_reset,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
static const
struct drm_connector_helper_funcs rk3066_hdmi_connector_helper_funcs = {
.get_modes = rk3066_hdmi_connector_get_modes,
.mode_valid = rk3066_hdmi_connector_mode_valid,
.best_encoder = rk3066_hdmi_connector_best_encoder,
};
static int
rk3066_hdmi_register(struct drm_device *drm, struct rk3066_hdmi *hdmi)
{
struct drm_encoder *encoder = &hdmi->encoder;
struct device *dev = hdmi->dev;
encoder->possible_crtcs =
drm_of_find_possible_crtcs(drm, dev->of_node);
/*
* If we failed to find the CRTC(s) which this encoder is
* supposed to be connected to, it's because the CRTC has
* not been registered yet. Defer probing, and hope that
* the required CRTC is added later.
*/
if (encoder->possible_crtcs == 0)
return -EPROBE_DEFER;
drm_encoder_helper_add(encoder, &rk3066_hdmi_encoder_helper_funcs);
drm_encoder_init(drm, encoder, &rk3066_hdmi_encoder_funcs,
DRM_MODE_ENCODER_TMDS, NULL);
hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD;
drm_connector_helper_add(&hdmi->connector,
&rk3066_hdmi_connector_helper_funcs);
drm_connector_init(drm, &hdmi->connector,
&rk3066_hdmi_connector_funcs,
DRM_MODE_CONNECTOR_HDMIA);
drm_connector_attach_encoder(&hdmi->connector, encoder);
return 0;
}
static irqreturn_t rk3066_hdmi_hardirq(int irq, void *dev_id)
{
struct rk3066_hdmi *hdmi = dev_id;
irqreturn_t ret = IRQ_NONE;
u8 interrupt;
if (rk3066_hdmi_get_power_mode(hdmi) == HDMI_SYS_POWER_MODE_A)
hdmi_writeb(hdmi, HDMI_SYS_CTRL, HDMI_SYS_POWER_MODE_B);
interrupt = hdmi_readb(hdmi, HDMI_INTR_STATUS1);
if (interrupt)
hdmi_writeb(hdmi, HDMI_INTR_STATUS1, interrupt);
if (interrupt & HDMI_INTR_EDID_MASK) {
hdmi->i2c->stat = interrupt;
complete(&hdmi->i2c->cmpltn);
}
if (interrupt & (HDMI_INTR_HOTPLUG | HDMI_INTR_MSENS))
ret = IRQ_WAKE_THREAD;
return ret;
}
static irqreturn_t rk3066_hdmi_irq(int irq, void *dev_id)
{
struct rk3066_hdmi *hdmi = dev_id;
drm_helper_hpd_irq_event(hdmi->connector.dev);
return IRQ_HANDLED;
}
static int rk3066_hdmi_i2c_read(struct rk3066_hdmi *hdmi, struct i2c_msg *msgs)
{
int length = msgs->len;
u8 *buf = msgs->buf;
int ret;
ret = wait_for_completion_timeout(&hdmi->i2c->cmpltn, HZ / 10);
if (!ret || hdmi->i2c->stat & HDMI_INTR_EDID_ERR)
return -EAGAIN;
while (length--)
*buf++ = hdmi_readb(hdmi, HDMI_DDC_READ_FIFO_ADDR);
return 0;
}
static int rk3066_hdmi_i2c_write(struct rk3066_hdmi *hdmi, struct i2c_msg *msgs)
{
/*
* The DDC module only supports read EDID message, so
* we assume that each word write to this i2c adapter
* should be the offset of the EDID word address.
*/
if (msgs->len != 1 ||
(msgs->addr != DDC_ADDR && msgs->addr != DDC_SEGMENT_ADDR))
return -EINVAL;
reinit_completion(&hdmi->i2c->cmpltn);
if (msgs->addr == DDC_SEGMENT_ADDR)
hdmi->i2c->segment_addr = msgs->buf[0];
if (msgs->addr == DDC_ADDR)
hdmi->i2c->ddc_addr = msgs->buf[0];
/* Set edid word address 0x00/0x80. */
hdmi_writeb(hdmi, HDMI_EDID_WORD_ADDR, hdmi->i2c->ddc_addr);
/* Set edid segment pointer. */
hdmi_writeb(hdmi, HDMI_EDID_SEGMENT_POINTER, hdmi->i2c->segment_addr);
return 0;
}
static int rk3066_hdmi_i2c_xfer(struct i2c_adapter *adap,
struct i2c_msg *msgs, int num)
{
struct rk3066_hdmi *hdmi = i2c_get_adapdata(adap);
struct rk3066_hdmi_i2c *i2c = hdmi->i2c;
int i, ret = 0;
mutex_lock(&i2c->i2c_lock);
rk3066_hdmi_i2c_init(hdmi);
/* Unmute HDMI EDID interrupt. */
hdmi_modb(hdmi, HDMI_INTR_MASK1,
HDMI_INTR_EDID_MASK, HDMI_INTR_EDID_MASK);
i2c->stat = 0;
for (i = 0; i < num; i++) {
DRM_DEV_DEBUG(hdmi->dev,
"xfer: num: %d/%d, len: %d, flags: %#x\n",
i + 1, num, msgs[i].len, msgs[i].flags);
if (msgs[i].flags & I2C_M_RD)
ret = rk3066_hdmi_i2c_read(hdmi, &msgs[i]);
else
ret = rk3066_hdmi_i2c_write(hdmi, &msgs[i]);
if (ret < 0)
break;
}
if (!ret)
ret = num;
/* Mute HDMI EDID interrupt. */
hdmi_modb(hdmi, HDMI_INTR_MASK1, HDMI_INTR_EDID_MASK, 0);
mutex_unlock(&i2c->i2c_lock);
return ret;
}
static u32 rk3066_hdmi_i2c_func(struct i2c_adapter *adapter)
{
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
}
static const struct i2c_algorithm rk3066_hdmi_algorithm = {
.master_xfer = rk3066_hdmi_i2c_xfer,
.functionality = rk3066_hdmi_i2c_func,
};
static struct i2c_adapter *rk3066_hdmi_i2c_adapter(struct rk3066_hdmi *hdmi)
{
struct i2c_adapter *adap;
struct rk3066_hdmi_i2c *i2c;
int ret;
i2c = devm_kzalloc(hdmi->dev, sizeof(*i2c), GFP_KERNEL);
if (!i2c)
return ERR_PTR(-ENOMEM);
mutex_init(&i2c->i2c_lock);
init_completion(&i2c->cmpltn);
adap = &i2c->adap;
adap->class = I2C_CLASS_DDC;
adap->owner = THIS_MODULE;
adap->dev.parent = hdmi->dev;
adap->dev.of_node = hdmi->dev->of_node;
adap->algo = &rk3066_hdmi_algorithm;
strlcpy(adap->name, "RK3066 HDMI", sizeof(adap->name));
i2c_set_adapdata(adap, hdmi);
ret = i2c_add_adapter(adap);
if (ret) {
DRM_DEV_ERROR(hdmi->dev, "cannot add %s I2C adapter\n",
adap->name);
devm_kfree(hdmi->dev, i2c);
return ERR_PTR(ret);
}
hdmi->i2c = i2c;
DRM_DEV_DEBUG(hdmi->dev, "registered %s I2C bus driver\n", adap->name);
return adap;
}
static int rk3066_hdmi_bind(struct device *dev, struct device *master,
void *data)
{
struct platform_device *pdev = to_platform_device(dev);
struct drm_device *drm = data;
struct rk3066_hdmi *hdmi;
struct resource *iores;
int irq;
int ret;
hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
if (!hdmi)
return -ENOMEM;
hdmi->dev = dev;
hdmi->drm_dev = drm;
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!iores)
return -ENXIO;
hdmi->regs = devm_ioremap_resource(dev, iores);
if (IS_ERR(hdmi->regs))
return PTR_ERR(hdmi->regs);
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
hdmi->hclk = devm_clk_get(dev, "hclk");
if (IS_ERR(hdmi->hclk)) {
DRM_DEV_ERROR(dev, "unable to get HDMI hclk clock\n");
return PTR_ERR(hdmi->hclk);
}
ret = clk_prepare_enable(hdmi->hclk);
if (ret) {
DRM_DEV_ERROR(dev, "cannot enable HDMI hclk clock: %d\n", ret);
return ret;
}
hdmi->grf_regmap = syscon_regmap_lookup_by_phandle(dev->of_node,
"rockchip,grf");
if (IS_ERR(hdmi->grf_regmap)) {
DRM_DEV_ERROR(dev, "unable to get rockchip,grf\n");
ret = PTR_ERR(hdmi->grf_regmap);
goto err_disable_hclk;
}
/* internal hclk = hdmi_hclk / 25 */
hdmi_writeb(hdmi, HDMI_INTERNAL_CLK_DIVIDER, 25);
hdmi->ddc = rk3066_hdmi_i2c_adapter(hdmi);
if (IS_ERR(hdmi->ddc)) {
ret = PTR_ERR(hdmi->ddc);
hdmi->ddc = NULL;
goto err_disable_hclk;
}
rk3066_hdmi_set_power_mode(hdmi, HDMI_SYS_POWER_MODE_B);
usleep_range(999, 1000);
hdmi_writeb(hdmi, HDMI_INTR_MASK1, HDMI_INTR_HOTPLUG);
hdmi_writeb(hdmi, HDMI_INTR_MASK2, 0);
hdmi_writeb(hdmi, HDMI_INTR_MASK3, 0);
hdmi_writeb(hdmi, HDMI_INTR_MASK4, 0);
rk3066_hdmi_set_power_mode(hdmi, HDMI_SYS_POWER_MODE_A);
ret = rk3066_hdmi_register(drm, hdmi);
if (ret)
goto err_disable_i2c;
dev_set_drvdata(dev, hdmi);
ret = devm_request_threaded_irq(dev, irq, rk3066_hdmi_hardirq,
rk3066_hdmi_irq, IRQF_SHARED,
dev_name(dev), hdmi);
if (ret) {
DRM_DEV_ERROR(dev, "failed to request hdmi irq: %d\n", ret);
goto err_cleanup_hdmi;
}
return 0;
err_cleanup_hdmi:
hdmi->connector.funcs->destroy(&hdmi->connector);
hdmi->encoder.funcs->destroy(&hdmi->encoder);
err_disable_i2c:
i2c_put_adapter(hdmi->ddc);
err_disable_hclk:
clk_disable_unprepare(hdmi->hclk);
return ret;
}
static void rk3066_hdmi_unbind(struct device *dev, struct device *master,
void *data)
{
struct rk3066_hdmi *hdmi = dev_get_drvdata(dev);
hdmi->connector.funcs->destroy(&hdmi->connector);
hdmi->encoder.funcs->destroy(&hdmi->encoder);
i2c_put_adapter(hdmi->ddc);
clk_disable_unprepare(hdmi->hclk);
}
static const struct component_ops rk3066_hdmi_ops = {
.bind = rk3066_hdmi_bind,
.unbind = rk3066_hdmi_unbind,
};
static int rk3066_hdmi_probe(struct platform_device *pdev)
{
return component_add(&pdev->dev, &rk3066_hdmi_ops);
}
static int rk3066_hdmi_remove(struct platform_device *pdev)
{
component_del(&pdev->dev, &rk3066_hdmi_ops);
return 0;
}
static const struct of_device_id rk3066_hdmi_dt_ids[] = {
{ .compatible = "rockchip,rk3066-hdmi" },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, rk3066_hdmi_dt_ids);
struct platform_driver rk3066_hdmi_driver = {
.probe = rk3066_hdmi_probe,
.remove = rk3066_hdmi_remove,
.driver = {
.name = "rockchip-rk3066-hdmi",
.of_match_table = rk3066_hdmi_dt_ids,
},
};

229
drivers/gpu/drm/rockchip/rk3066_hdmi.h Normal file
View File

@ -0,0 +1,229 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
* Zheng Yang <zhengyang@rock-chips.com>
*/
#ifndef __RK3066_HDMI_H__
#define __RK3066_HDMI_H__
#define GRF_SOC_CON0 0x150
#define HDMI_VIDEO_SEL BIT(14)
#define DDC_SEGMENT_ADDR 0x30
#define HDMI_SCL_RATE (50 * 1000)
#define HDMI_MAXIMUM_INFO_FRAME_SIZE 0x11
#define N_32K 0x1000
#define N_441K 0x1880
#define N_882K 0x3100
#define N_1764K 0x6200
#define N_48K 0x1800
#define N_96K 0x3000
#define N_192K 0x6000
#define HDMI_SYS_CTRL 0x000
#define HDMI_LR_SWAP_N3 0x004
#define HDMI_N2 0x008
#define HDMI_N1 0x00c
#define HDMI_SPDIF_FS_CTS_INT3 0x010
#define HDMI_CTS_INT2 0x014
#define HDMI_CTS_INT1 0x018
#define HDMI_CTS_EXT3 0x01c
#define HDMI_CTS_EXT2 0x020
#define HDMI_CTS_EXT1 0x024
#define HDMI_AUDIO_CTRL1 0x028
#define HDMI_AUDIO_CTRL2 0x02c
#define HDMI_I2S_AUDIO_CTRL 0x030
#define HDMI_I2S_SWAP 0x040
#define HDMI_AUDIO_STA_BIT_CTRL1 0x044
#define HDMI_AUDIO_STA_BIT_CTRL2 0x048
#define HDMI_AUDIO_SRC_NUM_AND_LENGTH 0x050
#define HDMI_AV_CTRL1 0x054
#define HDMI_VIDEO_CTRL1 0x058
#define HDMI_DEEP_COLOR_MODE 0x05c
#define HDMI_EXT_VIDEO_PARA 0x0c0
#define HDMI_EXT_HTOTAL_L 0x0c4
#define HDMI_EXT_HTOTAL_H 0x0c8
#define HDMI_EXT_HBLANK_L 0x0cc
#define HDMI_EXT_HBLANK_H 0x0d0
#define HDMI_EXT_HDELAY_L 0x0d4
#define HDMI_EXT_HDELAY_H 0x0d8
#define HDMI_EXT_HDURATION_L 0x0dc
#define HDMI_EXT_HDURATION_H 0x0e0
#define HDMI_EXT_VTOTAL_L 0x0e4
#define HDMI_EXT_VTOTAL_H 0x0e8
#define HDMI_AV_CTRL2 0x0ec
#define HDMI_EXT_VBLANK_L 0x0f4
#define HDMI_EXT_VBLANK_H 0x10c
#define HDMI_EXT_VDELAY 0x0f8
#define HDMI_EXT_VDURATION 0x0fc
#define HDMI_CP_MANU_SEND_CTRL 0x100
#define HDMI_CP_AUTO_SEND_CTRL 0x104
#define HDMI_AUTO_CHECKSUM_OPT 0x108
#define HDMI_VIDEO_CTRL2 0x114
#define HDMI_PHY_OPTION 0x144
#define HDMI_CP_BUF_INDEX 0x17c
#define HDMI_CP_BUF_ACC_HB0 0x180
#define HDMI_CP_BUF_ACC_HB1 0x184
#define HDMI_CP_BUF_ACC_HB2 0x188
#define HDMI_CP_BUF_ACC_PB0 0x18c
#define HDMI_DDC_READ_FIFO_ADDR 0x200
#define HDMI_DDC_BUS_FREQ_L 0x204
#define HDMI_DDC_BUS_FREQ_H 0x208
#define HDMI_DDC_BUS_CTRL 0x2dc
#define HDMI_DDC_I2C_LEN 0x278
#define HDMI_DDC_I2C_OFFSET 0x280
#define HDMI_DDC_I2C_CTRL 0x284
#define HDMI_DDC_I2C_READ_BUF0 0x288
#define HDMI_DDC_I2C_READ_BUF1 0x28c
#define HDMI_DDC_I2C_READ_BUF2 0x290
#define HDMI_DDC_I2C_READ_BUF3 0x294
#define HDMI_DDC_I2C_WRITE_BUF0 0x298
#define HDMI_DDC_I2C_WRITE_BUF1 0x29c
#define HDMI_DDC_I2C_WRITE_BUF2 0x2a0
#define HDMI_DDC_I2C_WRITE_BUF3 0x2a4
#define HDMI_DDC_I2C_WRITE_BUF4 0x2ac
#define HDMI_DDC_I2C_WRITE_BUF5 0x2b0
#define HDMI_DDC_I2C_WRITE_BUF6 0x2b4
#define HDMI_INTR_MASK1 0x248
#define HDMI_INTR_MASK2 0x24c
#define HDMI_INTR_STATUS1 0x250
#define HDMI_INTR_STATUS2 0x254
#define HDMI_INTR_MASK3 0x258
#define HDMI_INTR_MASK4 0x25c
#define HDMI_INTR_STATUS3 0x260
#define HDMI_INTR_STATUS4 0x264
#define HDMI_HDCP_CTRL 0x2bc
#define HDMI_EDID_SEGMENT_POINTER 0x310
#define HDMI_EDID_WORD_ADDR 0x314
#define HDMI_EDID_FIFO_ADDR 0x318
#define HDMI_HPG_MENS_STA 0x37c
#define HDMI_INTERNAL_CLK_DIVIDER 0x800
enum {
/* HDMI_SYS_CTRL */
HDMI_SYS_POWER_MODE_MASK = 0xf0,
HDMI_SYS_POWER_MODE_A = 0x10,
HDMI_SYS_POWER_MODE_B = 0x20,
HDMI_SYS_POWER_MODE_D = 0x40,
HDMI_SYS_POWER_MODE_E = 0x80,
HDMI_SYS_PLL_RESET_MASK = 0x0c,
HDMI_SYS_PLL_RESET = 0x0c,
HDMI_SYS_PLLB_RESET = 0x08,
/* HDMI_LR_SWAP_N3 */
HDMI_AUDIO_LR_SWAP_MASK = 0xf0,
HDMI_AUDIO_LR_SWAP_SUBPACKET0 = 0x10,
HDMI_AUDIO_LR_SWAP_SUBPACKET1 = 0x20,
HDMI_AUDIO_LR_SWAP_SUBPACKET2 = 0x40,
HDMI_AUDIO_LR_SWAP_SUBPACKET3 = 0x80,
HDMI_AUDIO_N_19_16_MASK = 0x0f,
/* HDMI_AUDIO_CTRL1 */
HDMI_AUDIO_EXTERNAL_CTS = BIT(7),
HDMI_AUDIO_INPUT_IIS = 0,
HDMI_AUDIO_INPUT_SPDIF = 0x08,
HDMI_AUDIO_INPUT_MCLK_ACTIVE = 0x04,
HDMI_AUDIO_INPUT_MCLK_DEACTIVE = 0,
HDMI_AUDIO_INPUT_MCLK_RATE_128X = 0,
HDMI_AUDIO_INPUT_MCLK_RATE_256X = 1,
HDMI_AUDIO_INPUT_MCLK_RATE_384X = 2,
HDMI_AUDIO_INPUT_MCLK_RATE_512X = 3,
/* HDMI_I2S_AUDIO_CTRL */
HDMI_AUDIO_I2S_FORMAT_STANDARD = 0,
HDMI_AUDIO_I2S_CHANNEL_1_2 = 0x04,
HDMI_AUDIO_I2S_CHANNEL_3_4 = 0x0c,
HDMI_AUDIO_I2S_CHANNEL_5_6 = 0x1c,
HDMI_AUDIO_I2S_CHANNEL_7_8 = 0x3c,
/* HDMI_AV_CTRL1 */
HDMI_AUDIO_SAMPLE_FRE_MASK = 0xf0,
HDMI_AUDIO_SAMPLE_FRE_32000 = 0x30,
HDMI_AUDIO_SAMPLE_FRE_44100 = 0,
HDMI_AUDIO_SAMPLE_FRE_48000 = 0x20,
HDMI_AUDIO_SAMPLE_FRE_88200 = 0x80,
HDMI_AUDIO_SAMPLE_FRE_96000 = 0xa0,
HDMI_AUDIO_SAMPLE_FRE_176400 = 0xc0,
HDMI_AUDIO_SAMPLE_FRE_192000 = 0xe0,
HDMI_AUDIO_SAMPLE_FRE_768000 = 0x90,
HDMI_VIDEO_INPUT_FORMAT_MASK = 0x0e,
HDMI_VIDEO_INPUT_RGB_YCBCR444 = 0,
HDMI_VIDEO_INPUT_YCBCR422 = 0x02,
HDMI_VIDEO_DE_MASK = 0x1,
HDMI_VIDEO_INTERNAL_DE = 0,
HDMI_VIDEO_EXTERNAL_DE = 0x01,
/* HDMI_VIDEO_CTRL1 */
HDMI_VIDEO_OUTPUT_FORMAT_MASK = 0xc0,
HDMI_VIDEO_OUTPUT_RGB444 = 0,
HDMI_VIDEO_OUTPUT_YCBCR444 = 0x40,
HDMI_VIDEO_OUTPUT_YCBCR422 = 0x80,
HDMI_VIDEO_INPUT_DATA_DEPTH_MASK = 0x30,
HDMI_VIDEO_INPUT_DATA_DEPTH_12BIT = 0,
HDMI_VIDEO_INPUT_DATA_DEPTH_10BIT = 0x10,
HDMI_VIDEO_INPUT_DATA_DEPTH_8BIT = 0x30,
HDMI_VIDEO_INPUT_COLOR_MASK = 1,
HDMI_VIDEO_INPUT_COLOR_RGB = 0,
HDMI_VIDEO_INPUT_COLOR_YCBCR = 1,
/* HDMI_EXT_VIDEO_PARA */
HDMI_VIDEO_VSYNC_OFFSET_SHIFT = 4,
HDMI_VIDEO_VSYNC_ACTIVE_HIGH = BIT(3),
HDMI_VIDEO_VSYNC_ACTIVE_LOW = 0,
HDMI_VIDEO_HSYNC_ACTIVE_HIGH = BIT(2),
HDMI_VIDEO_HSYNC_ACTIVE_LOW = 0,
HDMI_VIDEO_MODE_INTERLACE = BIT(1),
HDMI_VIDEO_MODE_PROGRESSIVE = 0,
HDMI_EXT_VIDEO_SET_EN = BIT(0),
/* HDMI_CP_AUTO_SEND_CTRL */
/* HDMI_VIDEO_CTRL2 */
HDMI_VIDEO_AV_MUTE_MASK = 0xc0,
HDMI_VIDEO_CLR_AV_MUTE = BIT(7),
HDMI_VIDEO_SET_AV_MUTE = BIT(6),
HDMI_AUDIO_CP_LOGIC_RESET_MASK = BIT(2),
HDMI_AUDIO_CP_LOGIC_RESET = BIT(2),
HDMI_VIDEO_AUDIO_DISABLE_MASK = 0x3,
HDMI_AUDIO_DISABLE = BIT(1),
HDMI_VIDEO_DISABLE = BIT(0),
/* HDMI_CP_BUF_INDEX */
HDMI_INFOFRAME_VSI = 0x05,
HDMI_INFOFRAME_AVI = 0x06,
HDMI_INFOFRAME_AAI = 0x08,
/* HDMI_INTR_MASK1 */
/* HDMI_INTR_STATUS1 */
HDMI_INTR_HOTPLUG = BIT(7),
HDMI_INTR_MSENS = BIT(6),
HDMI_INTR_VSYNC = BIT(5),
HDMI_INTR_AUDIO_FIFO_FULL = BIT(4),
HDMI_INTR_EDID_MASK = 0x6,
HDMI_INTR_EDID_READY = BIT(2),
HDMI_INTR_EDID_ERR = BIT(1),
/* HDMI_HDCP_CTRL */
HDMI_VIDEO_MODE_MASK = BIT(1),
HDMI_VIDEO_MODE_HDMI = BIT(1),
/* HDMI_HPG_MENS_STA */
HDMI_HPG_IN_STATUS_HIGH = BIT(7),
HDMI_MSENS_IN_STATUS_HIGH = BIT(6),
};
#endif /* __RK3066_HDMI_H__ */

2
drivers/gpu/drm/rockchip/rockchip_drm_drv.c
View File

@ -486,6 +486,8 @@ static int __init rockchip_drm_init(void)
ADD_ROCKCHIP_SUB_DRIVER(dw_mipi_dsi_rockchip_driver,
CONFIG_ROCKCHIP_DW_MIPI_DSI);
ADD_ROCKCHIP_SUB_DRIVER(inno_hdmi_driver, CONFIG_ROCKCHIP_INNO_HDMI);
ADD_ROCKCHIP_SUB_DRIVER(rk3066_hdmi_driver,
CONFIG_ROCKCHIP_RK3066_HDMI);
ret = platform_register_drivers(rockchip_sub_drivers,
num_rockchip_sub_drivers);

1
drivers/gpu/drm/rockchip/rockchip_drm_drv.h
View File

@ -73,4 +73,5 @@ extern struct platform_driver inno_hdmi_driver;
extern struct platform_driver rockchip_dp_driver;
extern struct platform_driver rockchip_lvds_driver;
extern struct platform_driver vop_platform_driver;
extern struct platform_driver rk3066_hdmi_driver;
#endif /* _ROCKCHIP_DRM_DRV_H_ */

11
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
View File

@ -1029,6 +1029,7 @@ static void vop_crtc_atomic_enable(struct drm_crtc *crtc,
u16 vact_st = adjusted_mode->vtotal - adjusted_mode->vsync_start;
u16 vact_end = vact_st + vdisplay;
uint32_t pin_pol, val;
int dither_bpc = s->output_bpc ? s->output_bpc : 10;
int ret;
mutex_lock(&vop->vop_lock);
@ -1086,11 +1087,19 @@ static void vop_crtc_atomic_enable(struct drm_crtc *crtc,
!(vop_data->feature & VOP_FEATURE_OUTPUT_RGB10))
s->output_mode = ROCKCHIP_OUT_MODE_P888;
if (s->output_mode == ROCKCHIP_OUT_MODE_AAAA && s->output_bpc == 8)
if (s->output_mode == ROCKCHIP_OUT_MODE_AAAA && dither_bpc <= 8)
VOP_REG_SET(vop, common, pre_dither_down, 1);
else
VOP_REG_SET(vop, common, pre_dither_down, 0);
if (dither_bpc == 6) {
VOP_REG_SET(vop, common, dither_down_sel, DITHER_DOWN_ALLEGRO);
VOP_REG_SET(vop, common, dither_down_mode, RGB888_TO_RGB666);
VOP_REG_SET(vop, common, dither_down_en, 1);
} else {
VOP_REG_SET(vop, common, dither_down_en, 0);
}
VOP_REG_SET(vop, common, out_mode, s->output_mode);
VOP_REG_SET(vop, modeset, htotal_pw, (htotal << 16) | hsync_len);

14
drivers/gpu/drm/rockchip/rockchip_drm_vop.h
View File

@ -71,7 +71,9 @@ struct vop_common {
struct vop_reg dsp_blank;
struct vop_reg data_blank;
struct vop_reg pre_dither_down;
struct vop_reg dither_down;
struct vop_reg dither_down_sel;
struct vop_reg dither_down_mode;
struct vop_reg dither_down_en;
struct vop_reg dither_up;
struct vop_reg gate_en;
struct vop_reg mmu_en;
@ -287,6 +289,16 @@ enum scale_down_mode {
SCALE_DOWN_AVG = 0x1
};
enum dither_down_mode {
RGB888_TO_RGB565 = 0x0,
RGB888_TO_RGB666 = 0x1
};
enum dither_down_mode_sel {
DITHER_DOWN_ALLEGRO = 0x0,
DITHER_DOWN_FRC = 0x1
};
enum vop_pol {
HSYNC_POSITIVE = 0,
VSYNC_POSITIVE = 1,

20
drivers/gpu/drm/rockchip/rockchip_vop_reg.c
View File

@ -137,6 +137,9 @@ static const struct vop_common rk3036_common = {
.standby = VOP_REG_SYNC(RK3036_SYS_CTRL, 0x1, 30),
.out_mode = VOP_REG(RK3036_DSP_CTRL0, 0xf, 0),
.dsp_blank = VOP_REG(RK3036_DSP_CTRL1, 0x1, 24),
.dither_down_sel = VOP_REG(RK3036_DSP_CTRL0, 0x1, 27),
.dither_down_en = VOP_REG(RK3036_DSP_CTRL0, 0x1, 11),
.dither_down_mode = VOP_REG(RK3036_DSP_CTRL0, 0x1, 10),
.cfg_done = VOP_REG_SYNC(RK3036_REG_CFG_DONE, 0x1, 0),
};
@ -200,6 +203,9 @@ static const struct vop_common px30_common = {
.standby = VOP_REG_SYNC(PX30_SYS_CTRL2, 0x1, 1),
.out_mode = VOP_REG(PX30_DSP_CTRL2, 0xf, 16),
.dsp_blank = VOP_REG(PX30_DSP_CTRL2, 0x1, 14),
.dither_down_en = VOP_REG(PX30_DSP_CTRL2, 0x1, 8),
.dither_down_sel = VOP_REG(PX30_DSP_CTRL2, 0x1, 7),
.dither_down_mode = VOP_REG(PX30_DSP_CTRL2, 0x1, 6),
.cfg_done = VOP_REG_SYNC(PX30_REG_CFG_DONE, 0x1, 0),
};
@ -365,6 +371,8 @@ static const struct vop_common rk3066_common = {
.standby = VOP_REG(RK3066_SYS_CTRL0, 0x1, 1),
.out_mode = VOP_REG(RK3066_DSP_CTRL0, 0xf, 0),
.cfg_done = VOP_REG(RK3066_REG_CFG_DONE, 0x1, 0),
.dither_down_en = VOP_REG(RK3066_DSP_CTRL0, 0x1, 11),
.dither_down_mode = VOP_REG(RK3066_DSP_CTRL0, 0x1, 10),
.dsp_blank = VOP_REG(RK3066_DSP_CTRL1, 0x1, 24),
};
@ -458,6 +466,9 @@ static const struct vop_common rk3188_common = {
.standby = VOP_REG(RK3188_SYS_CTRL, 0x1, 30),
.out_mode = VOP_REG(RK3188_DSP_CTRL0, 0xf, 0),
.cfg_done = VOP_REG(RK3188_REG_CFG_DONE, 0x1, 0),
.dither_down_sel = VOP_REG(RK3188_DSP_CTRL0, 0x1, 27),
.dither_down_en = VOP_REG(RK3188_DSP_CTRL0, 0x1, 11),
.dither_down_mode = VOP_REG(RK3188_DSP_CTRL0, 0x1, 10),
.dsp_blank = VOP_REG(RK3188_DSP_CTRL1, 0x3, 24),
};
@ -585,8 +596,10 @@ static const struct vop_common rk3288_common = {
.standby = VOP_REG_SYNC(RK3288_SYS_CTRL, 0x1, 22),
.gate_en = VOP_REG(RK3288_SYS_CTRL, 0x1, 23),
.mmu_en = VOP_REG(RK3288_SYS_CTRL, 0x1, 20),
.dither_down_sel = VOP_REG(RK3288_DSP_CTRL1, 0x1, 4),
.dither_down_mode = VOP_REG(RK3288_DSP_CTRL1, 0x1, 3),
.dither_down_en = VOP_REG(RK3288_DSP_CTRL1, 0x1, 2),
.pre_dither_down = VOP_REG(RK3288_DSP_CTRL1, 0x1, 1),
.dither_down = VOP_REG(RK3288_DSP_CTRL1, 0xf, 1),
.dither_up = VOP_REG(RK3288_DSP_CTRL1, 0x1, 6),
.data_blank = VOP_REG(RK3288_DSP_CTRL0, 0x1, 19),
.dsp_blank = VOP_REG(RK3288_DSP_CTRL0, 0x3, 18),
@ -878,7 +891,10 @@ static const struct vop_misc rk3328_misc = {
static const struct vop_common rk3328_common = {
.standby = VOP_REG_SYNC(RK3328_SYS_CTRL, 0x1, 22),
.dither_down = VOP_REG(RK3328_DSP_CTRL1, 0xf, 1),
.dither_down_sel = VOP_REG(RK3328_DSP_CTRL1, 0x1, 4),
.dither_down_mode = VOP_REG(RK3328_DSP_CTRL1, 0x1, 3),
.dither_down_en = VOP_REG(RK3328_DSP_CTRL1, 0x1, 2),
.pre_dither_down = VOP_REG(RK3328_DSP_CTRL1, 0x1, 1),
.dither_up = VOP_REG(RK3328_DSP_CTRL1, 0x1, 6),
.dsp_blank = VOP_REG(RK3328_DSP_CTRL0, 0x3, 18),
.out_mode = VOP_REG(RK3328_DSP_CTRL0, 0xf, 0),

35
drivers/gpu/drm/stm/drv.c
View File

@ -129,6 +129,40 @@ static void drv_unload(struct drm_device *ddev)
drm_mode_config_cleanup(ddev);
}
static __maybe_unused int drv_suspend(struct device *dev)
{
struct drm_device *ddev = dev_get_drvdata(dev);
struct ltdc_device *ldev = ddev->dev_private;
struct drm_atomic_state *state;
drm_kms_helper_poll_disable(ddev);
state = drm_atomic_helper_suspend(ddev);
if (IS_ERR(state)) {
drm_kms_helper_poll_enable(ddev);
return PTR_ERR(state);
}
ldev->suspend_state = state;
ltdc_suspend(ddev);
return 0;
}
static __maybe_unused int drv_resume(struct device *dev)
{
struct drm_device *ddev = dev_get_drvdata(dev);
struct ltdc_device *ldev = ddev->dev_private;
ltdc_resume(ddev);
drm_atomic_helper_resume(ddev, ldev->suspend_state);
drm_kms_helper_poll_enable(ddev);
return 0;
}
static const struct dev_pm_ops drv_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(drv_suspend, drv_resume)
};
static int stm_drm_platform_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@ -186,6 +220,7 @@ static struct platform_driver stm_drm_platform_driver = {
.driver = {
.name = "stm32-display",
.of_match_table = drv_dt_ids,
.pm = &drv_pm_ops,
},
};

28
drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
View File

@ -356,12 +356,40 @@ static int dw_mipi_dsi_stm_remove(struct platform_device *pdev)
return 0;
}
static int __maybe_unused dw_mipi_dsi_stm_suspend(struct device *dev)
{
struct dw_mipi_dsi_stm *dsi = dw_mipi_dsi_stm_plat_data.priv_data;
DRM_DEBUG_DRIVER("\n");
clk_disable_unprepare(dsi->pllref_clk);
return 0;
}
static int __maybe_unused dw_mipi_dsi_stm_resume(struct device *dev)
{
struct dw_mipi_dsi_stm *dsi = dw_mipi_dsi_stm_plat_data.priv_data;
DRM_DEBUG_DRIVER("\n");
clk_prepare_enable(dsi->pllref_clk);
return 0;
}
static const struct dev_pm_ops dw_mipi_dsi_stm_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(dw_mipi_dsi_stm_suspend,
dw_mipi_dsi_stm_resume)
};
static struct platform_driver dw_mipi_dsi_stm_driver = {
.probe = dw_mipi_dsi_stm_probe,
.remove = dw_mipi_dsi_stm_remove,
.driver = {
.of_match_table = dw_mipi_dsi_stm_dt_ids,
.name = "stm32-display-dsi",
.pm = &dw_mipi_dsi_stm_pm_ops,
},
};

24
drivers/gpu/drm/stm/ltdc.c
View File

@ -1062,6 +1062,30 @@ static int ltdc_get_caps(struct drm_device *ddev)
return 0;
}
void ltdc_suspend(struct drm_device *ddev)
{
struct ltdc_device *ldev = ddev->dev_private;
DRM_DEBUG_DRIVER("\n");
clk_disable_unprepare(ldev->pixel_clk);
}
int ltdc_resume(struct drm_device *ddev)
{
struct ltdc_device *ldev = ddev->dev_private;
int ret;
DRM_DEBUG_DRIVER("\n");
ret = clk_prepare_enable(ldev->pixel_clk);
if (ret) {
DRM_ERROR("failed to enable pixel clock (%d)\n", ret);
return ret;
}
return 0;
}
int ltdc_load(struct drm_device *ddev)
{
struct platform_device *pdev = to_platform_device(ddev->dev);

3
drivers/gpu/drm/stm/ltdc.h
View File

@ -36,6 +36,7 @@ struct ltdc_device {
u32 error_status;
u32 irq_status;
struct fps_info plane_fpsi[LTDC_MAX_LAYER];
struct drm_atomic_state *suspend_state;
};
bool ltdc_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
@ -45,5 +46,7 @@ bool ltdc_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
int ltdc_load(struct drm_device *ddev);
void ltdc_unload(struct drm_device *ddev);
void ltdc_suspend(struct drm_device *ddev);
int ltdc_resume(struct drm_device *ddev);
#endif

1
drivers/gpu/drm/sun4i/sun4i_hdmi.h
View File

@ -269,6 +269,7 @@ struct sun4i_hdmi {
struct clk *tmds_clk;
struct i2c_adapter *i2c;
struct i2c_adapter *ddc_i2c;
/* Regmap fields for I2C adapter */
struct regmap_field *field_ddc_en;

40
drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
View File

@ -217,7 +217,7 @@ static int sun4i_hdmi_get_modes(struct drm_connector *connector)
struct edid *edid;
int ret;
edid = drm_get_edid(connector, hdmi->i2c);
edid = drm_get_edid(connector, hdmi->ddc_i2c ?: hdmi->i2c);
if (!edid)
return 0;
@ -233,6 +233,28 @@ static int sun4i_hdmi_get_modes(struct drm_connector *connector)
return ret;
}
static struct i2c_adapter *sun4i_hdmi_get_ddc(struct device *dev)
{
struct device_node *phandle, *remote;
struct i2c_adapter *ddc;
remote = of_graph_get_remote_node(dev->of_node, 1, -1);
if (!remote)
return ERR_PTR(-EINVAL);
phandle = of_parse_phandle(remote, "ddc-i2c-bus", 0);
of_node_put(remote);
if (!phandle)
return ERR_PTR(-ENODEV);
ddc = of_get_i2c_adapter_by_node(phandle);
of_node_put(phandle);
if (!ddc)
return ERR_PTR(-EPROBE_DEFER);
return ddc;
}
static const struct drm_connector_helper_funcs sun4i_hdmi_connector_helper_funcs = {
.get_modes = sun4i_hdmi_get_modes,
};
@ -580,6 +602,15 @@ static int sun4i_hdmi_bind(struct device *dev, struct device *master,
goto err_disable_mod_clk;
}
hdmi->ddc_i2c = sun4i_hdmi_get_ddc(dev);
if (IS_ERR(hdmi->ddc_i2c)) {
ret = PTR_ERR(hdmi->ddc_i2c);
if (ret == -ENODEV)
hdmi->ddc_i2c = NULL;
else
goto err_del_i2c_adapter;
}
drm_encoder_helper_add(&hdmi->encoder,
&sun4i_hdmi_helper_funcs);
ret = drm_encoder_init(drm,
@ -589,14 +620,14 @@ static int sun4i_hdmi_bind(struct device *dev, struct device *master,
NULL);
if (ret) {
dev_err(dev, "Couldn't initialise the HDMI encoder\n");
goto err_del_i2c_adapter;
goto err_put_ddc_i2c;
}
hdmi->encoder.possible_crtcs = drm_of_find_possible_crtcs(drm,
dev->of_node);
if (!hdmi->encoder.possible_crtcs) {
ret = -EPROBE_DEFER;
goto err_del_i2c_adapter;
goto err_put_ddc_i2c;
}
#ifdef CONFIG_DRM_SUN4I_HDMI_CEC
@ -635,6 +666,8 @@ static int sun4i_hdmi_bind(struct device *dev, struct device *master,
err_cleanup_connector:
cec_delete_adapter(hdmi->cec_adap);
drm_encoder_cleanup(&hdmi->encoder);
err_put_ddc_i2c:
i2c_put_adapter(hdmi->ddc_i2c);
err_del_i2c_adapter:
i2c_del_adapter(hdmi->i2c);
err_disable_mod_clk:
@ -655,6 +688,7 @@ static void sun4i_hdmi_unbind(struct device *dev, struct device *master,
drm_connector_cleanup(&hdmi->connector);
drm_encoder_cleanup(&hdmi->encoder);
i2c_del_adapter(hdmi->i2c);
i2c_put_adapter(hdmi->ddc_i2c);
clk_disable_unprepare(hdmi->mod_clk);
clk_disable_unprepare(hdmi->bus_clk);
}

4
drivers/gpu/drm/v3d/v3d_bo.c
View File

@ -130,8 +130,8 @@ struct v3d_bo *v3d_bo_create(struct drm_device *dev, struct drm_file *file_priv,
int ret;
shmem_obj = drm_gem_shmem_create(dev, unaligned_size);
if (!shmem_obj)
return NULL;
if (IS_ERR(shmem_obj))
return ERR_CAST(shmem_obj);
bo = to_v3d_bo(&shmem_obj->base);
ret = v3d_bo_create_finish(&shmem_obj->base);

2
drivers/gpu/drm/v3d/v3d_drv.c
View File

@ -102,6 +102,8 @@ static int v3d_get_param_ioctl(struct drm_device *dev, void *data,
return -EINVAL;
ret = pm_runtime_get_sync(v3d->dev);
if (ret < 0)
return ret;
if (args->param >= DRM_V3D_PARAM_V3D_CORE0_IDENT0 &&
args->param <= DRM_V3D_PARAM_V3D_CORE0_IDENT2) {
args->value = V3D_CORE_READ(0, offset);

4
drivers/gpu/drm/v3d/v3d_drv.h
View File

@ -163,7 +163,7 @@ struct v3d_job {
struct dma_fence *in_fence;
/* v3d fence to be signaled by IRQ handler when the job is complete. */
struct dma_fence *done_fence;
struct dma_fence *irq_fence;
/* GPU virtual addresses of the start/end of the CL job. */
u32 start, end;
@ -210,7 +210,7 @@ struct v3d_tfu_job {
struct dma_fence *in_fence;
/* v3d fence to be signaled by IRQ handler when the job is complete. */
struct dma_fence *done_fence;
struct dma_fence *irq_fence;
struct v3d_dev *v3d;

6
drivers/gpu/drm/v3d/v3d_gem.c
View File

@ -340,8 +340,8 @@ v3d_exec_cleanup(struct kref *ref)
dma_fence_put(exec->bin.in_fence);
dma_fence_put(exec->render.in_fence);
dma_fence_put(exec->bin.done_fence);
dma_fence_put(exec->render.done_fence);
dma_fence_put(exec->bin.irq_fence);
dma_fence_put(exec->render.irq_fence);
dma_fence_put(exec->bin_done_fence);
dma_fence_put(exec->render_done_fence);
@ -374,7 +374,7 @@ v3d_tfu_job_cleanup(struct kref *ref)
unsigned int i;
dma_fence_put(job->in_fence);
dma_fence_put(job->done_fence);
dma_fence_put(job->irq_fence);
for (i = 0; i < ARRAY_SIZE(job->bo); i++) {
if (job->bo[i])

9
drivers/gpu/drm/v3d/v3d_irq.c
View File

@ -87,7 +87,8 @@ v3d_irq(int irq, void *arg)
if (intsts & V3D_INT_OUTOMEM) {
/* Note that the OOM status is edge signaled, so the
* interrupt won't happen again until the we actually
* add more memory.
* add more memory. Also, as of V3D 4.1, FLDONE won't
* be reported until any OOM state has been cleared.
*/
schedule_work(&v3d->overflow_mem_work);
status = IRQ_HANDLED;
@ -95,7 +96,7 @@ v3d_irq(int irq, void *arg)
if (intsts & V3D_INT_FLDONE) {
struct v3d_fence *fence =
to_v3d_fence(v3d->bin_job->bin.done_fence);
to_v3d_fence(v3d->bin_job->bin.irq_fence);
trace_v3d_bcl_irq(&v3d->drm, fence->seqno);
dma_fence_signal(&fence->base);
@ -104,7 +105,7 @@ v3d_irq(int irq, void *arg)
if (intsts & V3D_INT_FRDONE) {
struct v3d_fence *fence =
to_v3d_fence(v3d->render_job->render.done_fence);
to_v3d_fence(v3d->render_job->render.irq_fence);
trace_v3d_rcl_irq(&v3d->drm, fence->seqno);
dma_fence_signal(&fence->base);
@ -140,7 +141,7 @@ v3d_hub_irq(int irq, void *arg)
if (intsts & V3D_HUB_INT_TFUC) {
struct v3d_fence *fence =
to_v3d_fence(v3d->tfu_job->done_fence);
to_v3d_fence(v3d->tfu_job->irq_fence);
trace_v3d_tfu_irq(&v3d->drm, fence->seqno);
dma_fence_signal(&fence->base);

12
drivers/gpu/drm/v3d/v3d_sched.c
View File

@ -156,9 +156,9 @@ static struct dma_fence *v3d_job_run(struct drm_sched_job *sched_job)
if (IS_ERR(fence))
return NULL;
if (job->done_fence)
dma_fence_put(job->done_fence);
job->done_fence = dma_fence_get(fence);
if (job->irq_fence)
dma_fence_put(job->irq_fence);
job->irq_fence = dma_fence_get(fence);
trace_v3d_submit_cl(dev, q == V3D_RENDER, to_v3d_fence(fence)->seqno,
job->start, job->end);
@ -199,9 +199,9 @@ v3d_tfu_job_run(struct drm_sched_job *sched_job)
return NULL;
v3d->tfu_job = job;
if (job->done_fence)
dma_fence_put(job->done_fence);
job->done_fence = dma_fence_get(fence);
if (job->irq_fence)
dma_fence_put(job->irq_fence);
job->irq_fence = dma_fence_get(fence);
trace_v3d_submit_tfu(dev, to_v3d_fence(fence)->seqno);

56
drivers/gpu/drm/vc4/vc4_bo.c
View File

@ -40,7 +40,7 @@ static bool is_user_label(int label)
return label >= VC4_BO_TYPE_COUNT;
}
static void vc4_bo_stats_dump(struct vc4_dev *vc4)
static void vc4_bo_stats_print(struct drm_printer *p, struct vc4_dev *vc4)
{
int i;
@ -48,58 +48,35 @@ static void vc4_bo_stats_dump(struct vc4_dev *vc4)
if (!vc4->bo_labels[i].num_allocated)
continue;
DRM_INFO("%30s: %6dkb BOs (%d)\n",
vc4->bo_labels[i].name,
vc4->bo_labels[i].size_allocated / 1024,
vc4->bo_labels[i].num_allocated);
}
mutex_lock(&vc4->purgeable.lock);
if (vc4->purgeable.num)
DRM_INFO("%30s: %6zdkb BOs (%d)\n", "userspace BO cache",
vc4->purgeable.size / 1024, vc4->purgeable.num);
if (vc4->purgeable.purged_num)
DRM_INFO("%30s: %6zdkb BOs (%d)\n", "total purged BO",
vc4->purgeable.purged_size / 1024,
vc4->purgeable.purged_num);
mutex_unlock(&vc4->purgeable.lock);
}
#ifdef CONFIG_DEBUG_FS
int vc4_bo_stats_debugfs(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *dev = node->minor->dev;
struct vc4_dev *vc4 = to_vc4_dev(dev);
int i;
mutex_lock(&vc4->bo_lock);
for (i = 0; i < vc4->num_labels; i++) {
if (!vc4->bo_labels[i].num_allocated)
continue;
seq_printf(m, "%30s: %6dkb BOs (%d)\n",
drm_printf(p, "%30s: %6dkb BOs (%d)\n",
vc4->bo_labels[i].name,
vc4->bo_labels[i].size_allocated / 1024,
vc4->bo_labels[i].num_allocated);
}
mutex_unlock(&vc4->bo_lock);
mutex_lock(&vc4->purgeable.lock);
if (vc4->purgeable.num)
seq_printf(m, "%30s: %6zdkb BOs (%d)\n", "userspace BO cache",
drm_printf(p, "%30s: %6zdkb BOs (%d)\n", "userspace BO cache",
vc4->purgeable.size / 1024, vc4->purgeable.num);
if (vc4->purgeable.purged_num)
seq_printf(m, "%30s: %6zdkb BOs (%d)\n", "total purged BO",
drm_printf(p, "%30s: %6zdkb BOs (%d)\n", "total purged BO",
vc4->purgeable.purged_size / 1024,
vc4->purgeable.purged_num);
mutex_unlock(&vc4->purgeable.lock);
}
static int vc4_bo_stats_debugfs(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *dev = node->minor->dev;
struct vc4_dev *vc4 = to_vc4_dev(dev);
struct drm_printer p = drm_seq_file_printer(m);
vc4_bo_stats_print(&p, vc4);
return 0;
}
#endif
/* Takes ownership of *name and returns the appropriate slot for it in
* the bo_labels[] array, extending it as necessary.
@ -475,8 +452,9 @@ struct vc4_bo *vc4_bo_create(struct drm_device *dev, size_t unaligned_size,
}
if (IS_ERR(cma_obj)) {
struct drm_printer p = drm_info_printer(vc4->dev->dev);
DRM_ERROR("Failed to allocate from CMA:\n");
vc4_bo_stats_dump(vc4);
vc4_bo_stats_print(&p, vc4);
return ERR_PTR(-ENOMEM);
}
bo = to_vc4_bo(&cma_obj->base);
@ -1025,6 +1003,8 @@ int vc4_bo_cache_init(struct drm_device *dev)
mutex_init(&vc4->bo_lock);
vc4_debugfs_add_file(dev, "bo_stats", vc4_bo_stats_debugfs, NULL);
INIT_LIST_HEAD(&vc4->bo_cache.time_list);
INIT_WORK(&vc4->bo_cache.time_work, vc4_bo_cache_time_work);

97
drivers/gpu/drm/vc4/vc4_crtc.c
View File

@ -35,6 +35,7 @@
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_atomic_uapi.h>
#include <drm/drm_print.h>
#include <drm/drm_probe_helper.h>
#include <linux/clk.h>
#include <drm/drm_fb_cma_helper.h>
@ -67,67 +68,22 @@ to_vc4_crtc_state(struct drm_crtc_state *crtc_state)
#define CRTC_WRITE(offset, val) writel(val, vc4_crtc->regs + (offset))
#define CRTC_READ(offset) readl(vc4_crtc->regs + (offset))
#define CRTC_REG(reg) { reg, #reg }
static const struct {
u32 reg;
const char *name;
} crtc_regs[] = {
CRTC_REG(PV_CONTROL),
CRTC_REG(PV_V_CONTROL),
CRTC_REG(PV_VSYNCD_EVEN),
CRTC_REG(PV_HORZA),
CRTC_REG(PV_HORZB),
CRTC_REG(PV_VERTA),
CRTC_REG(PV_VERTB),
CRTC_REG(PV_VERTA_EVEN),
CRTC_REG(PV_VERTB_EVEN),
CRTC_REG(PV_INTEN),
CRTC_REG(PV_INTSTAT),
CRTC_REG(PV_STAT),
CRTC_REG(PV_HACT_ACT),
static const struct debugfs_reg32 crtc_regs[] = {
VC4_REG32(PV_CONTROL),
VC4_REG32(PV_V_CONTROL),
VC4_REG32(PV_VSYNCD_EVEN),
VC4_REG32(PV_HORZA),
VC4_REG32(PV_HORZB),
VC4_REG32(PV_VERTA),
VC4_REG32(PV_VERTB),
VC4_REG32(PV_VERTA_EVEN),
VC4_REG32(PV_VERTB_EVEN),
VC4_REG32(PV_INTEN),
VC4_REG32(PV_INTSTAT),
VC4_REG32(PV_STAT),
VC4_REG32(PV_HACT_ACT),
};
static void vc4_crtc_dump_regs(struct vc4_crtc *vc4_crtc)
{
int i;
for (i = 0; i < ARRAY_SIZE(crtc_regs); i++) {
DRM_INFO("0x%04x (%s): 0x%08x\n",
crtc_regs[i].reg, crtc_regs[i].name,
CRTC_READ(crtc_regs[i].reg));
}
}
#ifdef CONFIG_DEBUG_FS
int vc4_crtc_debugfs_regs(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *dev = node->minor->dev;
int crtc_index = (uintptr_t)node->info_ent->data;
struct drm_crtc *crtc;
struct vc4_crtc *vc4_crtc;
int i;
i = 0;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
if (i == crtc_index)
break;
i++;
}
if (!crtc)
return 0;
vc4_crtc = to_vc4_crtc(crtc);
for (i = 0; i < ARRAY_SIZE(crtc_regs); i++) {
seq_printf(m, "%s (0x%04x): 0x%08x\n",
crtc_regs[i].name, crtc_regs[i].reg,
CRTC_READ(crtc_regs[i].reg));
}
return 0;
}
#endif
bool vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id,
bool in_vblank_irq, int *vpos, int *hpos,
ktime_t *stime, ktime_t *etime,
@ -434,8 +390,10 @@ static void vc4_crtc_mode_set_nofb(struct drm_crtc *crtc)
bool debug_dump_regs = false;
if (debug_dump_regs) {
DRM_INFO("CRTC %d regs before:\n", drm_crtc_index(crtc));
vc4_crtc_dump_regs(vc4_crtc);
struct drm_printer p = drm_info_printer(&vc4_crtc->pdev->dev);
dev_info(&vc4_crtc->pdev->dev, "CRTC %d regs before:\n",
drm_crtc_index(crtc));
drm_print_regset32(&p, &vc4_crtc->regset);
}
if (vc4_crtc->channel == 2) {
@ -476,8 +434,10 @@ static void vc4_crtc_mode_set_nofb(struct drm_crtc *crtc)
vc4_crtc_lut_load(crtc);
if (debug_dump_regs) {
DRM_INFO("CRTC %d regs after:\n", drm_crtc_index(crtc));
vc4_crtc_dump_regs(vc4_crtc);
struct drm_printer p = drm_info_printer(&vc4_crtc->pdev->dev);
dev_info(&vc4_crtc->pdev->dev, "CRTC %d regs after:\n",
drm_crtc_index(crtc));
drm_print_regset32(&p, &vc4_crtc->regset);
}
}
@ -1083,6 +1043,7 @@ static const struct drm_crtc_helper_funcs vc4_crtc_helper_funcs = {
static const struct vc4_crtc_data pv0_data = {
.hvs_channel = 0,
.debugfs_name = "crtc0_regs",
.encoder_types = {
[PV_CONTROL_CLK_SELECT_DSI] = VC4_ENCODER_TYPE_DSI0,
[PV_CONTROL_CLK_SELECT_DPI_SMI_HDMI] = VC4_ENCODER_TYPE_DPI,
@ -1091,6 +1052,7 @@ static const struct vc4_crtc_data pv0_data = {
static const struct vc4_crtc_data pv1_data = {
.hvs_channel = 2,
.debugfs_name = "crtc1_regs",
.encoder_types = {
[PV_CONTROL_CLK_SELECT_DSI] = VC4_ENCODER_TYPE_DSI1,
[PV_CONTROL_CLK_SELECT_DPI_SMI_HDMI] = VC4_ENCODER_TYPE_SMI,
@ -1099,6 +1061,7 @@ static const struct vc4_crtc_data pv1_data = {
static const struct vc4_crtc_data pv2_data = {
.hvs_channel = 1,
.debugfs_name = "crtc2_regs",
.encoder_types = {
[PV_CONTROL_CLK_SELECT_DPI_SMI_HDMI] = VC4_ENCODER_TYPE_HDMI,
[PV_CONTROL_CLK_SELECT_VEC] = VC4_ENCODER_TYPE_VEC,
@ -1177,11 +1140,16 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data)
if (!match)
return -ENODEV;
vc4_crtc->data = match->data;
vc4_crtc->pdev = pdev;
vc4_crtc->regs = vc4_ioremap_regs(pdev, 0);
if (IS_ERR(vc4_crtc->regs))
return PTR_ERR(vc4_crtc->regs);
vc4_crtc->regset.base = vc4_crtc->regs;
vc4_crtc->regset.regs = crtc_regs;
vc4_crtc->regset.nregs = ARRAY_SIZE(crtc_regs);
/* For now, we create just the primary and the legacy cursor
* planes. We should be able to stack more planes on easily,
* but to do that we would need to compute the bandwidth
@ -1255,6 +1223,9 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data)
platform_set_drvdata(pdev, vc4_crtc);
vc4_debugfs_add_regset32(drm, vc4_crtc->data->debugfs_name,
&vc4_crtc->regset);
return 0;
err_destroy_planes:

82
drivers/gpu/drm/vc4/vc4_debugfs.c
View File

@ -15,28 +15,20 @@
#include "vc4_drv.h"
#include "vc4_regs.h"
static const struct drm_info_list vc4_debugfs_list[] = {
{"bo_stats", vc4_bo_stats_debugfs, 0},
{"dpi_regs", vc4_dpi_debugfs_regs, 0},
{"dsi1_regs", vc4_dsi_debugfs_regs, 0, (void *)(uintptr_t)1},
{"hdmi_regs", vc4_hdmi_debugfs_regs, 0},
{"vec_regs", vc4_vec_debugfs_regs, 0},
{"txp_regs", vc4_txp_debugfs_regs, 0},
{"hvs_regs", vc4_hvs_debugfs_regs, 0},
{"hvs_underrun", vc4_hvs_debugfs_underrun, 0},
{"crtc0_regs", vc4_crtc_debugfs_regs, 0, (void *)(uintptr_t)0},
{"crtc1_regs", vc4_crtc_debugfs_regs, 0, (void *)(uintptr_t)1},
{"crtc2_regs", vc4_crtc_debugfs_regs, 0, (void *)(uintptr_t)2},
{"v3d_ident", vc4_v3d_debugfs_ident, 0},
{"v3d_regs", vc4_v3d_debugfs_regs, 0},
struct vc4_debugfs_info_entry {
struct list_head link;
struct drm_info_list info;
};
#define VC4_DEBUGFS_ENTRIES ARRAY_SIZE(vc4_debugfs_list)
/**
* Called at drm_dev_register() time on each of the minors registered
* by the DRM device, to attach the debugfs files.
*/
int
vc4_debugfs_init(struct drm_minor *minor)
{
struct vc4_dev *vc4 = to_vc4_dev(minor->dev);
struct vc4_debugfs_info_entry *entry;
struct dentry *dentry;
dentry = debugfs_create_bool("hvs_load_tracker", S_IRUGO | S_IWUSR,
@ -45,6 +37,60 @@ vc4_debugfs_init(struct drm_minor *minor)
if (!dentry)
return -ENOMEM;
return drm_debugfs_create_files(vc4_debugfs_list, VC4_DEBUGFS_ENTRIES,
minor->debugfs_root, minor);
list_for_each_entry(entry, &vc4->debugfs_list, link) {
int ret = drm_debugfs_create_files(&entry->info, 1,
minor->debugfs_root, minor);
if (ret)
return ret;
}
return 0;
}
int vc4_debugfs_regset32(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct debugfs_regset32 *regset = node->info_ent->data;
struct drm_printer p = drm_seq_file_printer(m);
drm_print_regset32(&p, regset);
return 0;
}
/**
* Registers a debugfs file with a callback function for a vc4 component.
*
* This is like drm_debugfs_create_files(), but that can only be
* called a given DRM minor, while the various VC4 components want to
* register their debugfs files during the component bind process. We
* track the request and delay it to be called on each minor during
* vc4_debugfs_init().
*/
void vc4_debugfs_add_file(struct drm_device *dev,
const char *name,
int (*show)(struct seq_file*, void*),
void *data)
{
struct vc4_dev *vc4 = to_vc4_dev(dev);
struct vc4_debugfs_info_entry *entry =
devm_kzalloc(dev->dev, sizeof(*entry), GFP_KERNEL);
if (!entry)
return;
entry->info.name = name;
entry->info.show = show;
entry->info.data = data;
list_add(&entry->link, &vc4->debugfs_list);
}
void vc4_debugfs_add_regset32(struct drm_device *drm,
const char *name,
struct debugfs_regset32 *regset)
{
vc4_debugfs_add_file(drm, name, vc4_debugfs_regset32, regset);
}

39
drivers/gpu/drm/vc4/vc4_dpi.c
View File

@ -101,6 +101,8 @@ struct vc4_dpi {
struct clk *pixel_clock;
struct clk *core_clock;
struct debugfs_regset32 regset;
};
#define DPI_READ(offset) readl(dpi->regs + (offset))
@ -118,37 +120,11 @@ to_vc4_dpi_encoder(struct drm_encoder *encoder)
return container_of(encoder, struct vc4_dpi_encoder, base.base);
}
#define DPI_REG(reg) { reg, #reg }
static const struct {
u32 reg;
const char *name;
} dpi_regs[] = {
DPI_REG(DPI_C),
DPI_REG(DPI_ID),
static const struct debugfs_reg32 dpi_regs[] = {
VC4_REG32(DPI_C),
VC4_REG32(DPI_ID),
};
#ifdef CONFIG_DEBUG_FS
int vc4_dpi_debugfs_regs(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *dev = node->minor->dev;
struct vc4_dev *vc4 = to_vc4_dev(dev);
struct vc4_dpi *dpi = vc4->dpi;
int i;
if (!dpi)
return 0;
for (i = 0; i < ARRAY_SIZE(dpi_regs); i++) {
seq_printf(m, "%s (0x%04x): 0x%08x\n",
dpi_regs[i].name, dpi_regs[i].reg,
DPI_READ(dpi_regs[i].reg));
}
return 0;
}
#endif
static const struct drm_encoder_funcs vc4_dpi_encoder_funcs = {
.destroy = drm_encoder_cleanup,
};
@ -314,6 +290,9 @@ static int vc4_dpi_bind(struct device *dev, struct device *master, void *data)
dpi->regs = vc4_ioremap_regs(pdev, 0);
if (IS_ERR(dpi->regs))
return PTR_ERR(dpi->regs);
dpi->regset.base = dpi->regs;
dpi->regset.regs = dpi_regs;
dpi->regset.nregs = ARRAY_SIZE(dpi_regs);
if (DPI_READ(DPI_ID) != DPI_ID_VALUE) {
dev_err(dev, "Port returned 0x%08x for ID instead of 0x%08x\n",
@ -352,6 +331,8 @@ static int vc4_dpi_bind(struct device *dev, struct device *master, void *data)
vc4->dpi = dpi;
vc4_debugfs_add_regset32(drm, "dpi_regs", &dpi->regset);
return 0;
err_destroy_encoder:

38
drivers/gpu/drm/vc4/vc4_drv.c
View File

@ -72,30 +72,30 @@ static int vc4_get_param_ioctl(struct drm_device *dev, void *data,
if (args->pad != 0)
return -EINVAL;
if (!vc4->v3d)
return -ENODEV;
switch (args->param) {
case DRM_VC4_PARAM_V3D_IDENT0:
ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
if (ret < 0)
ret = vc4_v3d_pm_get(vc4);
if (ret)
return ret;
args->value = V3D_READ(V3D_IDENT0);
pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
vc4_v3d_pm_put(vc4);
break;
case DRM_VC4_PARAM_V3D_IDENT1:
ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
if (ret < 0)
ret = vc4_v3d_pm_get(vc4);
if (ret)
return ret;
args->value = V3D_READ(V3D_IDENT1);
pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
vc4_v3d_pm_put(vc4);
break;
case DRM_VC4_PARAM_V3D_IDENT2:
ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
if (ret < 0)
ret = vc4_v3d_pm_get(vc4);
if (ret)
return ret;
args->value = V3D_READ(V3D_IDENT2);
pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
vc4_v3d_pm_put(vc4);
break;
case DRM_VC4_PARAM_SUPPORTS_BRANCHES:
case DRM_VC4_PARAM_SUPPORTS_ETC1:
@ -251,6 +251,7 @@ static int vc4_drm_bind(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
struct drm_device *drm;
struct vc4_dev *vc4;
struct device_node *node;
int ret = 0;
dev->coherent_dma_mask = DMA_BIT_MASK(32);
@ -259,12 +260,19 @@ static int vc4_drm_bind(struct device *dev)
if (!vc4)
return -ENOMEM;
/* If VC4 V3D is missing, don't advertise render nodes. */
node = of_find_matching_node_and_match(NULL, vc4_v3d_dt_match, NULL);
if (!node || !of_device_is_available(node))
vc4_drm_driver.driver_features &= ~DRIVER_RENDER;
of_node_put(node);
drm = drm_dev_alloc(&vc4_drm_driver, dev);
if (IS_ERR(drm))
return PTR_ERR(drm);
platform_set_drvdata(pdev, drm);
vc4->dev = drm;
drm->dev_private = vc4;
INIT_LIST_HEAD(&vc4->debugfs_list);
ret = vc4_bo_cache_init(drm);
if (ret)
@ -280,11 +288,13 @@ static int vc4_drm_bind(struct device *dev)
drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
ret = drm_dev_register(drm, 0);
ret = vc4_kms_load(drm);
if (ret < 0)
goto unbind_all;
vc4_kms_load(drm);
ret = drm_dev_register(drm, 0);
if (ret < 0)
goto unbind_all;
drm_fbdev_generic_setup(drm, 16);

49
drivers/gpu/drm/vc4/vc4_drv.h
View File

@ -211,6 +211,11 @@ struct vc4_dev {
struct drm_modeset_lock ctm_state_lock;
struct drm_private_obj ctm_manager;
struct drm_private_obj load_tracker;
/* List of vc4_debugfs_info_entry for adding to debugfs once
* the minor is available (after drm_dev_register()).
*/
struct list_head debugfs_list;
};
static inline struct vc4_dev *
@ -296,6 +301,7 @@ struct vc4_v3d {
struct platform_device *pdev;
void __iomem *regs;
struct clk *clk;
struct debugfs_regset32 regset;
};
struct vc4_hvs {
@ -312,6 +318,7 @@ struct vc4_hvs {
spinlock_t mm_lock;
struct drm_mm_node mitchell_netravali_filter;
struct debugfs_regset32 regset;
};
struct vc4_plane {
@ -427,10 +434,12 @@ struct vc4_crtc_data {
int hvs_channel;
enum vc4_encoder_type encoder_types[4];
const char *debugfs_name;
};
struct vc4_crtc {
struct drm_crtc base;
struct platform_device *pdev;
const struct vc4_crtc_data *data;
void __iomem *regs;
@ -447,6 +456,8 @@ struct vc4_crtc {
u32 cob_size;
struct drm_pending_vblank_event *event;
struct debugfs_regset32 regset;
};
static inline struct vc4_crtc *
@ -460,6 +471,8 @@ to_vc4_crtc(struct drm_crtc *crtc)
#define HVS_READ(offset) readl(vc4->hvs->regs + offset)
#define HVS_WRITE(offset, val) writel(val, vc4->hvs->regs + offset)
#define VC4_REG32(reg) { .name = #reg, .offset = reg }
struct vc4_exec_info {
/* Sequence number for this bin/render job. */
uint64_t seqno;
@ -708,7 +721,6 @@ struct drm_gem_object *vc4_prime_import_sg_table(struct drm_device *dev,
void *vc4_prime_vmap(struct drm_gem_object *obj);
int vc4_bo_cache_init(struct drm_device *dev);
void vc4_bo_cache_destroy(struct drm_device *dev);
int vc4_bo_stats_debugfs(struct seq_file *m, void *arg);
int vc4_bo_inc_usecnt(struct vc4_bo *bo);
void vc4_bo_dec_usecnt(struct vc4_bo *bo);
void vc4_bo_add_to_purgeable_pool(struct vc4_bo *bo);
@ -716,7 +728,6 @@ void vc4_bo_remove_from_purgeable_pool(struct vc4_bo *bo);
/* vc4_crtc.c */
extern struct platform_driver vc4_crtc_driver;
int vc4_crtc_debugfs_regs(struct seq_file *m, void *arg);
bool vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id,
bool in_vblank_irq, int *vpos, int *hpos,
ktime_t *stime, ktime_t *etime,
@ -729,17 +740,37 @@ void vc4_crtc_get_margins(struct drm_crtc_state *state,
/* vc4_debugfs.c */
int vc4_debugfs_init(struct drm_minor *minor);
#ifdef CONFIG_DEBUG_FS
void vc4_debugfs_add_file(struct drm_device *drm,
const char *filename,
int (*show)(struct seq_file*, void*),
void *data);
void vc4_debugfs_add_regset32(struct drm_device *drm,
const char *filename,
struct debugfs_regset32 *regset);
#else
static inline void vc4_debugfs_add_file(struct drm_device *drm,
const char *filename,
int (*show)(struct seq_file*, void*),
void *data)
{
}
static inline void vc4_debugfs_add_regset32(struct drm_device *drm,
const char *filename,
struct debugfs_regset32 *regset)
{
}
#endif
/* vc4_drv.c */
void __iomem *vc4_ioremap_regs(struct platform_device *dev, int index);
/* vc4_dpi.c */
extern struct platform_driver vc4_dpi_driver;
int vc4_dpi_debugfs_regs(struct seq_file *m, void *unused);
/* vc4_dsi.c */
extern struct platform_driver vc4_dsi_driver;
int vc4_dsi_debugfs_regs(struct seq_file *m, void *unused);
/* vc4_fence.c */
extern const struct dma_fence_ops vc4_fence_ops;
@ -767,15 +798,12 @@ int vc4_gem_madvise_ioctl(struct drm_device *dev, void *data,
/* vc4_hdmi.c */
extern struct platform_driver vc4_hdmi_driver;
int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused);
/* vc4_vec.c */
extern struct platform_driver vc4_vec_driver;
int vc4_vec_debugfs_regs(struct seq_file *m, void *unused);
/* vc4_txp.c */
extern struct platform_driver vc4_txp_driver;
int vc4_txp_debugfs_regs(struct seq_file *m, void *unused);
/* vc4_irq.c */
irqreturn_t vc4_irq(int irq, void *arg);
@ -787,8 +815,6 @@ void vc4_irq_reset(struct drm_device *dev);
/* vc4_hvs.c */
extern struct platform_driver vc4_hvs_driver;
void vc4_hvs_dump_state(struct drm_device *dev);
int vc4_hvs_debugfs_regs(struct seq_file *m, void *unused);
int vc4_hvs_debugfs_underrun(struct seq_file *m, void *unused);
void vc4_hvs_unmask_underrun(struct drm_device *dev, int channel);
void vc4_hvs_mask_underrun(struct drm_device *dev, int channel);
@ -805,9 +831,10 @@ void vc4_plane_async_set_fb(struct drm_plane *plane,
/* vc4_v3d.c */
extern struct platform_driver vc4_v3d_driver;
int vc4_v3d_debugfs_ident(struct seq_file *m, void *unused);
int vc4_v3d_debugfs_regs(struct seq_file *m, void *unused);
extern const struct of_device_id vc4_v3d_dt_match[];
int vc4_v3d_get_bin_slot(struct vc4_dev *vc4);
int vc4_v3d_pm_get(struct vc4_dev *vc4);
void vc4_v3d_pm_put(struct vc4_dev *vc4);
/* vc4_validate.c */
int

175
drivers/gpu/drm/vc4/vc4_dsi.c
View File

@ -545,6 +545,8 @@ struct vc4_dsi {
struct completion xfer_completion;
int xfer_result;
struct debugfs_regset32 regset;
};
#define host_to_dsi(host) container_of(host, struct vc4_dsi, dsi_host)
@ -605,113 +607,56 @@ to_vc4_dsi_encoder(struct drm_encoder *encoder)
return container_of(encoder, struct vc4_dsi_encoder, base.base);
}
#define DSI_REG(reg) { reg, #reg }
static const struct {
u32 reg;
const char *name;
} dsi0_regs[] = {
DSI_REG(DSI0_CTRL),
DSI_REG(DSI0_STAT),
DSI_REG(DSI0_HSTX_TO_CNT),
DSI_REG(DSI0_LPRX_TO_CNT),
DSI_REG(DSI0_TA_TO_CNT),
DSI_REG(DSI0_PR_TO_CNT),
DSI_REG(DSI0_DISP0_CTRL),
DSI_REG(DSI0_DISP1_CTRL),
DSI_REG(DSI0_INT_STAT),
DSI_REG(DSI0_INT_EN),
DSI_REG(DSI0_PHYC),
DSI_REG(DSI0_HS_CLT0),
DSI_REG(DSI0_HS_CLT1),
DSI_REG(DSI0_HS_CLT2),
DSI_REG(DSI0_HS_DLT3),
DSI_REG(DSI0_HS_DLT4),
DSI_REG(DSI0_HS_DLT5),
DSI_REG(DSI0_HS_DLT6),
DSI_REG(DSI0_HS_DLT7),
DSI_REG(DSI0_PHY_AFEC0),
DSI_REG(DSI0_PHY_AFEC1),
DSI_REG(DSI0_ID),
static const struct debugfs_reg32 dsi0_regs[] = {
VC4_REG32(DSI0_CTRL),
VC4_REG32(DSI0_STAT),
VC4_REG32(DSI0_HSTX_TO_CNT),
VC4_REG32(DSI0_LPRX_TO_CNT),
VC4_REG32(DSI0_TA_TO_CNT),
VC4_REG32(DSI0_PR_TO_CNT),
VC4_REG32(DSI0_DISP0_CTRL),
VC4_REG32(DSI0_DISP1_CTRL),
VC4_REG32(DSI0_INT_STAT),
VC4_REG32(DSI0_INT_EN),
VC4_REG32(DSI0_PHYC),
VC4_REG32(DSI0_HS_CLT0),
VC4_REG32(DSI0_HS_CLT1),
VC4_REG32(DSI0_HS_CLT2),
VC4_REG32(DSI0_HS_DLT3),
VC4_REG32(DSI0_HS_DLT4),
VC4_REG32(DSI0_HS_DLT5),
VC4_REG32(DSI0_HS_DLT6),
VC4_REG32(DSI0_HS_DLT7),
VC4_REG32(DSI0_PHY_AFEC0),
VC4_REG32(DSI0_PHY_AFEC1),
VC4_REG32(DSI0_ID),
};
static const struct {
u32 reg;
const char *name;
} dsi1_regs[] = {
DSI_REG(DSI1_CTRL),
DSI_REG(DSI1_STAT),
DSI_REG(DSI1_HSTX_TO_CNT),
DSI_REG(DSI1_LPRX_TO_CNT),
DSI_REG(DSI1_TA_TO_CNT),
DSI_REG(DSI1_PR_TO_CNT),
DSI_REG(DSI1_DISP0_CTRL),
DSI_REG(DSI1_DISP1_CTRL),
DSI_REG(DSI1_INT_STAT),
DSI_REG(DSI1_INT_EN),
DSI_REG(DSI1_PHYC),
DSI_REG(DSI1_HS_CLT0),
DSI_REG(DSI1_HS_CLT1),
DSI_REG(DSI1_HS_CLT2),
DSI_REG(DSI1_HS_DLT3),
DSI_REG(DSI1_HS_DLT4),
DSI_REG(DSI1_HS_DLT5),
DSI_REG(DSI1_HS_DLT6),
DSI_REG(DSI1_HS_DLT7),
DSI_REG(DSI1_PHY_AFEC0),
DSI_REG(DSI1_PHY_AFEC1),
DSI_REG(DSI1_ID),
static const struct debugfs_reg32 dsi1_regs[] = {
VC4_REG32(DSI1_CTRL),
VC4_REG32(DSI1_STAT),
VC4_REG32(DSI1_HSTX_TO_CNT),
VC4_REG32(DSI1_LPRX_TO_CNT),
VC4_REG32(DSI1_TA_TO_CNT),
VC4_REG32(DSI1_PR_TO_CNT),
VC4_REG32(DSI1_DISP0_CTRL),
VC4_REG32(DSI1_DISP1_CTRL),
VC4_REG32(DSI1_INT_STAT),
VC4_REG32(DSI1_INT_EN),
VC4_REG32(DSI1_PHYC),
VC4_REG32(DSI1_HS_CLT0),
VC4_REG32(DSI1_HS_CLT1),
VC4_REG32(DSI1_HS_CLT2),
VC4_REG32(DSI1_HS_DLT3),
VC4_REG32(DSI1_HS_DLT4),
VC4_REG32(DSI1_HS_DLT5),
VC4_REG32(DSI1_HS_DLT6),
VC4_REG32(DSI1_HS_DLT7),
VC4_REG32(DSI1_PHY_AFEC0),
VC4_REG32(DSI1_PHY_AFEC1),
VC4_REG32(DSI1_ID),
};
static void vc4_dsi_dump_regs(struct vc4_dsi *dsi)
{
int i;
if (dsi->port == 0) {
for (i = 0; i < ARRAY_SIZE(dsi0_regs); i++) {
DRM_INFO("0x%04x (%s): 0x%08x\n",
dsi0_regs[i].reg, dsi0_regs[i].name,
DSI_READ(dsi0_regs[i].reg));
}
} else {
for (i = 0; i < ARRAY_SIZE(dsi1_regs); i++) {
DRM_INFO("0x%04x (%s): 0x%08x\n",
dsi1_regs[i].reg, dsi1_regs[i].name,
DSI_READ(dsi1_regs[i].reg));
}
}
}
#ifdef CONFIG_DEBUG_FS
int vc4_dsi_debugfs_regs(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *drm = node->minor->dev;
struct vc4_dev *vc4 = to_vc4_dev(drm);
int dsi_index = (uintptr_t)node->info_ent->data;
struct vc4_dsi *dsi = (dsi_index == 1 ? vc4->dsi1 : NULL);
int i;
if (!dsi)
return 0;
if (dsi->port == 0) {
for (i = 0; i < ARRAY_SIZE(dsi0_regs); i++) {
seq_printf(m, "0x%04x (%s): 0x%08x\n",
dsi0_regs[i].reg, dsi0_regs[i].name,
DSI_READ(dsi0_regs[i].reg));
}
} else {
for (i = 0; i < ARRAY_SIZE(dsi1_regs); i++) {
seq_printf(m, "0x%04x (%s): 0x%08x\n",
dsi1_regs[i].reg, dsi1_regs[i].name,
DSI_READ(dsi1_regs[i].reg));
}
}
return 0;
}
#endif
static void vc4_dsi_encoder_destroy(struct drm_encoder *encoder)
{
drm_encoder_cleanup(encoder);
@ -900,8 +845,9 @@ static void vc4_dsi_encoder_enable(struct drm_encoder *encoder)
}
if (debug_dump_regs) {
DRM_INFO("DSI regs before:\n");
vc4_dsi_dump_regs(dsi);
struct drm_printer p = drm_info_printer(&dsi->pdev->dev);
dev_info(&dsi->pdev->dev, "DSI regs before:\n");
drm_print_regset32(&p, &dsi->regset);
}
/* Round up the clk_set_rate() request slightly, since
@ -1135,8 +1081,9 @@ static void vc4_dsi_encoder_enable(struct drm_encoder *encoder)
drm_bridge_enable(dsi->bridge);
if (debug_dump_regs) {
DRM_INFO("DSI regs after:\n");
vc4_dsi_dump_regs(dsi);
struct drm_printer p = drm_info_printer(&dsi->pdev->dev);
dev_info(&dsi->pdev->dev, "DSI regs after:\n");
drm_print_regset32(&p, &dsi->regset);
}
}
@ -1527,6 +1474,15 @@ static int vc4_dsi_bind(struct device *dev, struct device *master, void *data)
if (IS_ERR(dsi->regs))
return PTR_ERR(dsi->regs);
dsi->regset.base = dsi->regs;
if (dsi->port == 0) {
dsi->regset.regs = dsi0_regs;
dsi->regset.nregs = ARRAY_SIZE(dsi0_regs);
} else {
dsi->regset.regs = dsi1_regs;
dsi->regset.nregs = ARRAY_SIZE(dsi1_regs);
}
if (DSI_PORT_READ(ID) != DSI_ID_VALUE) {
dev_err(dev, "Port returned 0x%08x for ID instead of 0x%08x\n",
DSI_PORT_READ(ID), DSI_ID_VALUE);
@ -1662,6 +1618,11 @@ static int vc4_dsi_bind(struct device *dev, struct device *master, void *data)
*/
dsi->encoder->bridge = NULL;
if (dsi->port == 0)
vc4_debugfs_add_regset32(drm, "dsi0_regs", &dsi->regset);
else
vc4_debugfs_add_regset32(drm, "dsi1_regs", &dsi->regset);
pm_runtime_enable(dev);
return 0;

31
drivers/gpu/drm/vc4/vc4_gem.c
View File

@ -74,6 +74,11 @@ vc4_get_hang_state_ioctl(struct drm_device *dev, void *data,
u32 i;
int ret = 0;
if (!vc4->v3d) {
DRM_DEBUG("VC4_GET_HANG_STATE with no VC4 V3D probed\n");
return -ENODEV;
}
spin_lock_irqsave(&vc4->job_lock, irqflags);
kernel_state = vc4->hang_state;
if (!kernel_state) {
@ -964,12 +969,7 @@ vc4_complete_exec(struct drm_device *dev, struct vc4_exec_info *exec)
/* Release the reference we had on the perf monitor. */
vc4_perfmon_put(exec->perfmon);
mutex_lock(&vc4->power_lock);
if (--vc4->power_refcount == 0) {
pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
}
mutex_unlock(&vc4->power_lock);
vc4_v3d_pm_put(vc4);
kfree(exec);
}
@ -1124,6 +1124,11 @@ vc4_submit_cl_ioctl(struct drm_device *dev, void *data,
struct dma_fence *in_fence;
int ret = 0;
if (!vc4->v3d) {
DRM_DEBUG("VC4_SUBMIT_CL with no VC4 V3D probed\n");
return -ENODEV;
}
if ((args->flags & ~(VC4_SUBMIT_CL_USE_CLEAR_COLOR |
VC4_SUBMIT_CL_FIXED_RCL_ORDER |
VC4_SUBMIT_CL_RCL_ORDER_INCREASING_X |
@ -1143,17 +1148,11 @@ vc4_submit_cl_ioctl(struct drm_device *dev, void *data,
return -ENOMEM;
}
mutex_lock(&vc4->power_lock);
if (vc4->power_refcount++ == 0) {
ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
if (ret < 0) {
mutex_unlock(&vc4->power_lock);
vc4->power_refcount--;
kfree(exec);
return ret;
}
ret = vc4_v3d_pm_get(vc4);
if (ret) {
kfree(exec);
return ret;
}
mutex_unlock(&vc4->power_lock);
exec->args = args;
INIT_LIST_HEAD(&exec->unref_list);

158
drivers/gpu/drm/vc4/vc4_hdmi.c
View File

@ -97,6 +97,9 @@ struct vc4_hdmi {
struct clk *pixel_clock;
struct clk *hsm_clock;
struct debugfs_regset32 hdmi_regset;
struct debugfs_regset32 hd_regset;
};
#define HDMI_READ(offset) readl(vc4->hdmi->hdmicore_regs + offset)
@ -134,103 +137,69 @@ to_vc4_hdmi_connector(struct drm_connector *connector)
return container_of(connector, struct vc4_hdmi_connector, base);
}
#define HDMI_REG(reg) { reg, #reg }
static const struct {
u32 reg;
const char *name;
} hdmi_regs[] = {
HDMI_REG(VC4_HDMI_CORE_REV),
HDMI_REG(VC4_HDMI_SW_RESET_CONTROL),
HDMI_REG(VC4_HDMI_HOTPLUG_INT),
HDMI_REG(VC4_HDMI_HOTPLUG),
HDMI_REG(VC4_HDMI_MAI_CHANNEL_MAP),
HDMI_REG(VC4_HDMI_MAI_CONFIG),
HDMI_REG(VC4_HDMI_MAI_FORMAT),
HDMI_REG(VC4_HDMI_AUDIO_PACKET_CONFIG),
HDMI_REG(VC4_HDMI_RAM_PACKET_CONFIG),
HDMI_REG(VC4_HDMI_HORZA),
HDMI_REG(VC4_HDMI_HORZB),
HDMI_REG(VC4_HDMI_FIFO_CTL),
HDMI_REG(VC4_HDMI_SCHEDULER_CONTROL),
HDMI_REG(VC4_HDMI_VERTA0),
HDMI_REG(VC4_HDMI_VERTA1),
HDMI_REG(VC4_HDMI_VERTB0),
HDMI_REG(VC4_HDMI_VERTB1),
HDMI_REG(VC4_HDMI_TX_PHY_RESET_CTL),
HDMI_REG(VC4_HDMI_TX_PHY_CTL0),
static const struct debugfs_reg32 hdmi_regs[] = {
VC4_REG32(VC4_HDMI_CORE_REV),
VC4_REG32(VC4_HDMI_SW_RESET_CONTROL),
VC4_REG32(VC4_HDMI_HOTPLUG_INT),
VC4_REG32(VC4_HDMI_HOTPLUG),
VC4_REG32(VC4_HDMI_MAI_CHANNEL_MAP),
VC4_REG32(VC4_HDMI_MAI_CONFIG),
VC4_REG32(VC4_HDMI_MAI_FORMAT),
VC4_REG32(VC4_HDMI_AUDIO_PACKET_CONFIG),
VC4_REG32(VC4_HDMI_RAM_PACKET_CONFIG),
VC4_REG32(VC4_HDMI_HORZA),
VC4_REG32(VC4_HDMI_HORZB),
VC4_REG32(VC4_HDMI_FIFO_CTL),
VC4_REG32(VC4_HDMI_SCHEDULER_CONTROL),
VC4_REG32(VC4_HDMI_VERTA0),
VC4_REG32(VC4_HDMI_VERTA1),
VC4_REG32(VC4_HDMI_VERTB0),
VC4_REG32(VC4_HDMI_VERTB1),
VC4_REG32(VC4_HDMI_TX_PHY_RESET_CTL),
VC4_REG32(VC4_HDMI_TX_PHY_CTL0),
HDMI_REG(VC4_HDMI_CEC_CNTRL_1),
HDMI_REG(VC4_HDMI_CEC_CNTRL_2),
HDMI_REG(VC4_HDMI_CEC_CNTRL_3),
HDMI_REG(VC4_HDMI_CEC_CNTRL_4),
HDMI_REG(VC4_HDMI_CEC_CNTRL_5),
HDMI_REG(VC4_HDMI_CPU_STATUS),
HDMI_REG(VC4_HDMI_CPU_MASK_STATUS),
VC4_REG32(VC4_HDMI_CEC_CNTRL_1),
VC4_REG32(VC4_HDMI_CEC_CNTRL_2),
VC4_REG32(VC4_HDMI_CEC_CNTRL_3),
VC4_REG32(VC4_HDMI_CEC_CNTRL_4),
VC4_REG32(VC4_HDMI_CEC_CNTRL_5),
VC4_REG32(VC4_HDMI_CPU_STATUS),
VC4_REG32(VC4_HDMI_CPU_MASK_STATUS),
HDMI_REG(VC4_HDMI_CEC_RX_DATA_1),
HDMI_REG(VC4_HDMI_CEC_RX_DATA_2),
HDMI_REG(VC4_HDMI_CEC_RX_DATA_3),
HDMI_REG(VC4_HDMI_CEC_RX_DATA_4),
HDMI_REG(VC4_HDMI_CEC_TX_DATA_1),
HDMI_REG(VC4_HDMI_CEC_TX_DATA_2),
HDMI_REG(VC4_HDMI_CEC_TX_DATA_3),
HDMI_REG(VC4_HDMI_CEC_TX_DATA_4),
VC4_REG32(VC4_HDMI_CEC_RX_DATA_1),
VC4_REG32(VC4_HDMI_CEC_RX_DATA_2),
VC4_REG32(VC4_HDMI_CEC_RX_DATA_3),
VC4_REG32(VC4_HDMI_CEC_RX_DATA_4),
VC4_REG32(VC4_HDMI_CEC_TX_DATA_1),
VC4_REG32(VC4_HDMI_CEC_TX_DATA_2),
VC4_REG32(VC4_HDMI_CEC_TX_DATA_3),
VC4_REG32(VC4_HDMI_CEC_TX_DATA_4),
};
static const struct {
u32 reg;
const char *name;
} hd_regs[] = {
HDMI_REG(VC4_HD_M_CTL),
HDMI_REG(VC4_HD_MAI_CTL),
HDMI_REG(VC4_HD_MAI_THR),
HDMI_REG(VC4_HD_MAI_FMT),
HDMI_REG(VC4_HD_MAI_SMP),
HDMI_REG(VC4_HD_VID_CTL),
HDMI_REG(VC4_HD_CSC_CTL),
HDMI_REG(VC4_HD_FRAME_COUNT),
static const struct debugfs_reg32 hd_regs[] = {
VC4_REG32(VC4_HD_M_CTL),
VC4_REG32(VC4_HD_MAI_CTL),
VC4_REG32(VC4_HD_MAI_THR),
VC4_REG32(VC4_HD_MAI_FMT),
VC4_REG32(VC4_HD_MAI_SMP),
VC4_REG32(VC4_HD_VID_CTL),
VC4_REG32(VC4_HD_CSC_CTL),
VC4_REG32(VC4_HD_FRAME_COUNT),
};
#ifdef CONFIG_DEBUG_FS
int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused)
static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *dev = node->minor->dev;
struct vc4_dev *vc4 = to_vc4_dev(dev);
int i;
struct vc4_hdmi *hdmi = vc4->hdmi;
struct drm_printer p = drm_seq_file_printer(m);
for (i = 0; i < ARRAY_SIZE(hdmi_regs); i++) {
seq_printf(m, "%s (0x%04x): 0x%08x\n",
hdmi_regs[i].name, hdmi_regs[i].reg,
HDMI_READ(hdmi_regs[i].reg));
}
for (i = 0; i < ARRAY_SIZE(hd_regs); i++) {
seq_printf(m, "%s (0x%04x): 0x%08x\n",
hd_regs[i].name, hd_regs[i].reg,
HD_READ(hd_regs[i].reg));
}
drm_print_regset32(&p, &hdmi->hdmi_regset);
drm_print_regset32(&p, &hdmi->hd_regset);
return 0;
}
#endif /* CONFIG_DEBUG_FS */
static void vc4_hdmi_dump_regs(struct drm_device *dev)
{
struct vc4_dev *vc4 = to_vc4_dev(dev);
int i;
for (i = 0; i < ARRAY_SIZE(hdmi_regs); i++) {
DRM_INFO("0x%04x (%s): 0x%08x\n",
hdmi_regs[i].reg, hdmi_regs[i].name,
HDMI_READ(hdmi_regs[i].reg));
}
for (i = 0; i < ARRAY_SIZE(hd_regs); i++) {
DRM_INFO("0x%04x (%s): 0x%08x\n",
hd_regs[i].reg, hd_regs[i].name,
HD_READ(hd_regs[i].reg));
}
}
static enum drm_connector_status
vc4_hdmi_connector_detect(struct drm_connector *connector, bool force)
@ -561,8 +530,11 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder)
HDMI_WRITE(VC4_HDMI_TX_PHY_RESET_CTL, 0);
if (debug_dump_regs) {
DRM_INFO("HDMI regs before:\n");
vc4_hdmi_dump_regs(dev);
struct drm_printer p = drm_info_printer(&hdmi->pdev->dev);
dev_info(&hdmi->pdev->dev, "HDMI regs before:\n");
drm_print_regset32(&p, &hdmi->hdmi_regset);
drm_print_regset32(&p, &hdmi->hd_regset);
}
HD_WRITE(VC4_HD_VID_CTL, 0);
@ -637,8 +609,11 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder)
HDMI_WRITE(VC4_HDMI_FIFO_CTL, VC4_HDMI_FIFO_CTL_MASTER_SLAVE_N);
if (debug_dump_regs) {
DRM_INFO("HDMI regs after:\n");
vc4_hdmi_dump_regs(dev);
struct drm_printer p = drm_info_printer(&hdmi->pdev->dev);
dev_info(&hdmi->pdev->dev, "HDMI regs after:\n");
drm_print_regset32(&p, &hdmi->hdmi_regset);
drm_print_regset32(&p, &hdmi->hd_regset);
}
HD_WRITE(VC4_HD_VID_CTL,
@ -1333,6 +1308,13 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data)
if (IS_ERR(hdmi->hd_regs))
return PTR_ERR(hdmi->hd_regs);
hdmi->hdmi_regset.base = hdmi->hdmicore_regs;
hdmi->hdmi_regset.regs = hdmi_regs;
hdmi->hdmi_regset.nregs = ARRAY_SIZE(hdmi_regs);
hdmi->hd_regset.base = hdmi->hd_regs;
hdmi->hd_regset.regs = hd_regs;
hdmi->hd_regset.nregs = ARRAY_SIZE(hd_regs);
hdmi->pixel_clock = devm_clk_get(dev, "pixel");
if (IS_ERR(hdmi->pixel_clock)) {
DRM_ERROR("Failed to get pixel clock\n");
@ -1448,6 +1430,8 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data)
if (ret)
goto err_destroy_encoder;
vc4_debugfs_add_file(drm, "hdmi_regs", vc4_hdmi_debugfs_regs, hdmi);
return 0;
#ifdef CONFIG_DRM_VC4_HDMI_CEC

103
drivers/gpu/drm/vc4/vc4_hvs.c
View File

@ -27,54 +27,47 @@
#include "vc4_drv.h"
#include "vc4_regs.h"
#define HVS_REG(reg) { reg, #reg }
static const struct {
u32 reg;
const char *name;
} hvs_regs[] = {
HVS_REG(SCALER_DISPCTRL),
HVS_REG(SCALER_DISPSTAT),
HVS_REG(SCALER_DISPID),
HVS_REG(SCALER_DISPECTRL),
HVS_REG(SCALER_DISPPROF),
HVS_REG(SCALER_DISPDITHER),
HVS_REG(SCALER_DISPEOLN),
HVS_REG(SCALER_DISPLIST0),
HVS_REG(SCALER_DISPLIST1),
HVS_REG(SCALER_DISPLIST2),
HVS_REG(SCALER_DISPLSTAT),
HVS_REG(SCALER_DISPLACT0),
HVS_REG(SCALER_DISPLACT1),
HVS_REG(SCALER_DISPLACT2),
HVS_REG(SCALER_DISPCTRL0),
HVS_REG(SCALER_DISPBKGND0),
HVS_REG(SCALER_DISPSTAT0),
HVS_REG(SCALER_DISPBASE0),
HVS_REG(SCALER_DISPCTRL1),
HVS_REG(SCALER_DISPBKGND1),
HVS_REG(SCALER_DISPSTAT1),
HVS_REG(SCALER_DISPBASE1),
HVS_REG(SCALER_DISPCTRL2),
HVS_REG(SCALER_DISPBKGND2),
HVS_REG(SCALER_DISPSTAT2),
HVS_REG(SCALER_DISPBASE2),
HVS_REG(SCALER_DISPALPHA2),
HVS_REG(SCALER_OLEDOFFS),
HVS_REG(SCALER_OLEDCOEF0),
HVS_REG(SCALER_OLEDCOEF1),
HVS_REG(SCALER_OLEDCOEF2),
static const struct debugfs_reg32 hvs_regs[] = {
VC4_REG32(SCALER_DISPCTRL),
VC4_REG32(SCALER_DISPSTAT),
VC4_REG32(SCALER_DISPID),
VC4_REG32(SCALER_DISPECTRL),
VC4_REG32(SCALER_DISPPROF),
VC4_REG32(SCALER_DISPDITHER),
VC4_REG32(SCALER_DISPEOLN),
VC4_REG32(SCALER_DISPLIST0),
VC4_REG32(SCALER_DISPLIST1),
VC4_REG32(SCALER_DISPLIST2),
VC4_REG32(SCALER_DISPLSTAT),
VC4_REG32(SCALER_DISPLACT0),
VC4_REG32(SCALER_DISPLACT1),
VC4_REG32(SCALER_DISPLACT2),
VC4_REG32(SCALER_DISPCTRL0),
VC4_REG32(SCALER_DISPBKGND0),
VC4_REG32(SCALER_DISPSTAT0),
VC4_REG32(SCALER_DISPBASE0),
VC4_REG32(SCALER_DISPCTRL1),
VC4_REG32(SCALER_DISPBKGND1),
VC4_REG32(SCALER_DISPSTAT1),
VC4_REG32(SCALER_DISPBASE1),
VC4_REG32(SCALER_DISPCTRL2),
VC4_REG32(SCALER_DISPBKGND2),
VC4_REG32(SCALER_DISPSTAT2),
VC4_REG32(SCALER_DISPBASE2),
VC4_REG32(SCALER_DISPALPHA2),
VC4_REG32(SCALER_OLEDOFFS),
VC4_REG32(SCALER_OLEDCOEF0),
VC4_REG32(SCALER_OLEDCOEF1),
VC4_REG32(SCALER_OLEDCOEF2),
};
void vc4_hvs_dump_state(struct drm_device *dev)
{
struct vc4_dev *vc4 = to_vc4_dev(dev);
struct drm_printer p = drm_info_printer(&vc4->hvs->pdev->dev);
int i;
for (i = 0; i < ARRAY_SIZE(hvs_regs); i++) {
DRM_INFO("0x%04x (%s): 0x%08x\n",
hvs_regs[i].reg, hvs_regs[i].name,
HVS_READ(hvs_regs[i].reg));
}
drm_print_regset32(&p, &vc4->hvs->regset);
DRM_INFO("HVS ctx:\n");
for (i = 0; i < 64; i += 4) {
@ -87,24 +80,7 @@ void vc4_hvs_dump_state(struct drm_device *dev)
}
}
#ifdef CONFIG_DEBUG_FS
int vc4_hvs_debugfs_regs(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *dev = node->minor->dev;
struct vc4_dev *vc4 = to_vc4_dev(dev);
int i;
for (i = 0; i < ARRAY_SIZE(hvs_regs); i++) {
seq_printf(m, "%s (0x%04x): 0x%08x\n",
hvs_regs[i].name, hvs_regs[i].reg,
HVS_READ(hvs_regs[i].reg));
}
return 0;
}
int vc4_hvs_debugfs_underrun(struct seq_file *m, void *data)
static int vc4_hvs_debugfs_underrun(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
@ -115,7 +91,6 @@ int vc4_hvs_debugfs_underrun(struct seq_file *m, void *data)
return 0;
}
#endif
/* The filter kernel is composed of dwords each containing 3 9-bit
* signed integers packed next to each other.
@ -259,6 +234,10 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data)
if (IS_ERR(hvs->regs))
return PTR_ERR(hvs->regs);
hvs->regset.base = hvs->regs;
hvs->regset.regs = hvs_regs;
hvs->regset.nregs = ARRAY_SIZE(hvs_regs);
hvs->dlist = hvs->regs + SCALER_DLIST_START;
spin_lock_init(&hvs->mm_lock);
@ -323,6 +302,10 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data)
if (ret)
return ret;
vc4_debugfs_add_regset32(drm, "hvs_regs", &hvs->regset);
vc4_debugfs_add_file(drm, "hvs_underrun", vc4_hvs_debugfs_underrun,
NULL);
return 0;
}

Some files were not shown because too many files have changed in this diff Show More