linux/drivers/gpu/drm/meson/meson_drv.c
Dave Airlie 0a19b068ac drm-misc-next for v5.9:
UAPI Changes:
 - Add DRM_MODE_TYPE_USERDEF for video modes specified in cmdline.
 
 Cross-subsystem Changes:
 - Assorted devicetree binding updates.
 - Add might_sleep() to dma_fence_wait().
 - Fix fbdev's get_user_pages_fast() handling, and use pin_user_pages.
 - Small cleanup with IS_BUILTIN in video/fbdev drivers.
 - Fix video/hdmi coding style for infoframe size.
 
 Core Changes:
 - Silence vblank output during init.
 - Fix DP-MST corruption during send msg timeout.
 - Clear leak in drm_gem_objecs_lookup().
 - Make newlines work with force connector attribute.
 - Fix module refcounting error in drm_encoder_slave, and use new i2c api.
 - Header fix for drm_managed.c
 - More struct_mutex removal for !legacy drivers:
   - Remove gem_free_object()
   - Removal of drm_gem_object_put_unlocked().
 - Show current->comm alongside pid in debug printfs.
 - Add drm_client_modeset_check() + drm_client_framebuffer_flush().
 - Replace drm_fb_swab16 with drm_fb_swap that also supports 32-bits.
 - Remove mode->vrefresh, and compactify drm_display_mode.
 - Use drm_* macros for logging and warnings.
 - Add WARN when drm_gem_get_pages is used on a private obj.
 - Handle importing and imported dmabuf better in shmem helpers.
 - Small fix for drm/mm hole size comparison, and remove invalid entry optimization.
 - Add a drm/mm selftest.
 - Set DSI connector type for DSI panels.
 - Assorted small fixes and documentation updates.
 - Fix DDI I2C device registration for MST ports, and flushing on destroy.
 - Fix master_set return type, used by vmwgfx.
 - Make the drm_set/drop_master ioctl symmetrical.
 
 Driver Changes:
  Allow iommu in the sun4i driver and use it for sun8i.
 - Simplify backlight lookup for omap, amba-clcd and tilcdc.
 - Hold reg_lock for rockchip.
 - Add support for bridge gpio and lane reordering + polarity to ti-sn65dsi86, and fix clock choice.
 - Small assorted fixes to tilcdc, vc4, i915, omap, fbdev/sm712fb, fbdev/pxafb, console/newport_con, msm, virtio, udl, malidp, hdlcd, bridge/ti-sn65dsi86, panfrost.
 - Remove hw cursor support for mgag200, and use simple kms helper + shmem helpers.
 - Add support for KOE  Allow iommu in the sun4i driver and use it for sun8i.
 - Simplify backlight lookup for omap, amba-clcd and tilcdc.
 - Hold reg_lock for rockchip.
 - Add support for bridge gpio and lane reordering + polarity to ti-sn65dsi86, and fix clock choice.
 - Small assorted fixes to tilcdc, vc4 (multiple), i915.
 - Remove hw cursor support for mgag200, and use simple kms helper + shmem helpers.
 - Add support for KOE TX26D202VM0BWA panel.
 - Use GEM CMA functions in arc, arm, atmel-hlcdc, fsi-dcu, hisilicon, imx, ingenic, komeda, malidp, mcde, meson, msxfb, rcar-du, shmobile, stm, sti, tilcdc, tve200, zte.
 - Remove gem_print_info.
 - Improve gem_create_object_helper so udl can use shmem helpers.
 - Convert vc4 dt bindings to schemas, and add clock properties.
 - Device initialization cleanups for mgag200.
 - Add a workaround to fix DP-MST short pulses handling on broken hardware in i915.
 - Allow build test compiling arm drivers.
 - Use managed pci functions in mgag200 and ast.
 - Use dev_groups in malidp.
 - Add per pixel alpha support for PX30 VOP in rockchip.
 - Silence deferred probe logs in panfrost.
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Merge tag 'drm-misc-next-2020-06-19' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v5.9:

UAPI Changes:
- Add DRM_MODE_TYPE_USERDEF for video modes specified in cmdline.

Cross-subsystem Changes:
- Assorted devicetree binding updates.
- Add might_sleep() to dma_fence_wait().
- Fix fbdev's get_user_pages_fast() handling, and use pin_user_pages.
- Small cleanup with IS_BUILTIN in video/fbdev drivers.
- Fix video/hdmi coding style for infoframe size.

Core Changes:
- Silence vblank output during init.
- Fix DP-MST corruption during send msg timeout.
- Clear leak in drm_gem_objecs_lookup().
- Make newlines work with force connector attribute.
- Fix module refcounting error in drm_encoder_slave, and use new i2c api.
- Header fix for drm_managed.c
- More struct_mutex removal for !legacy drivers:
  - Remove gem_free_object()
  - Removal of drm_gem_object_put_unlocked().
- Show current->comm alongside pid in debug printfs.
- Add drm_client_modeset_check() + drm_client_framebuffer_flush().
- Replace drm_fb_swab16 with drm_fb_swap that also supports 32-bits.
- Remove mode->vrefresh, and compactify drm_display_mode.
- Use drm_* macros for logging and warnings.
- Add WARN when drm_gem_get_pages is used on a private obj.
- Handle importing and imported dmabuf better in shmem helpers.
- Small fix for drm/mm hole size comparison, and remove invalid entry optimization.
- Add a drm/mm selftest.
- Set DSI connector type for DSI panels.
- Assorted small fixes and documentation updates.
- Fix DDI I2C device registration for MST ports, and flushing on destroy.
- Fix master_set return type, used by vmwgfx.
- Make the drm_set/drop_master ioctl symmetrical.

Driver Changes:
 Allow iommu in the sun4i driver and use it for sun8i.
- Simplify backlight lookup for omap, amba-clcd and tilcdc.
- Hold reg_lock for rockchip.
- Add support for bridge gpio and lane reordering + polarity to ti-sn65dsi86, and fix clock choice.
- Small assorted fixes to tilcdc, vc4, i915, omap, fbdev/sm712fb, fbdev/pxafb, console/newport_con, msm, virtio, udl, malidp, hdlcd, bridge/ti-sn65dsi86, panfrost.
- Remove hw cursor support for mgag200, and use simple kms helper + shmem helpers.
- Add support for KOE  Allow iommu in the sun4i driver and use it for sun8i.
- Simplify backlight lookup for omap, amba-clcd and tilcdc.
- Hold reg_lock for rockchip.
- Add support for bridge gpio and lane reordering + polarity to ti-sn65dsi86, and fix clock choice.
- Small assorted fixes to tilcdc, vc4 (multiple), i915.
- Remove hw cursor support for mgag200, and use simple kms helper + shmem helpers.
- Add support for KOE TX26D202VM0BWA panel.
- Use GEM CMA functions in arc, arm, atmel-hlcdc, fsi-dcu, hisilicon, imx, ingenic, komeda, malidp, mcde, meson, msxfb, rcar-du, shmobile, stm, sti, tilcdc, tve200, zte.
- Remove gem_print_info.
- Improve gem_create_object_helper so udl can use shmem helpers.
- Convert vc4 dt bindings to schemas, and add clock properties.
- Device initialization cleanups for mgag200.
- Add a workaround to fix DP-MST short pulses handling on broken hardware in i915.
- Allow build test compiling arm drivers.
- Use managed pci functions in mgag200 and ast.
- Use dev_groups in malidp.
- Add per pixel alpha support for PX30 VOP in rockchip.
- Silence deferred probe logs in panfrost.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/001cd9a6-405d-4e29-43d8-354f53ae4e8b@linux.intel.com
2020-06-24 15:45:51 +10:00

567 lines
14 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2016 BayLibre, SAS
* Author: Neil Armstrong <narmstrong@baylibre.com>
* Copyright (C) 2014 Endless Mobile
*
* Written by:
* Jasper St. Pierre <jstpierre@mecheye.net>
*/
#include <linux/component.h>
#include <linux/module.h>
#include <linux/of_graph.h>
#include <linux/sys_soc.h>
#include <linux/platform_device.h>
#include <linux/soc/amlogic/meson-canvas.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_irq.h>
#include <drm/drm_modeset_helper_vtables.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_vblank.h>
#include "meson_crtc.h"
#include "meson_drv.h"
#include "meson_overlay.h"
#include "meson_plane.h"
#include "meson_osd_afbcd.h"
#include "meson_registers.h"
#include "meson_venc_cvbs.h"
#include "meson_viu.h"
#include "meson_vpp.h"
#include "meson_rdma.h"
#define DRIVER_NAME "meson"
#define DRIVER_DESC "Amlogic Meson DRM driver"
/**
* DOC: Video Processing Unit
*
* VPU Handles the Global Video Processing, it includes management of the
* clocks gates, blocks reset lines and power domains.
*
* What is missing :
*
* - Full reset of entire video processing HW blocks
* - Scaling and setup of the VPU clock
* - Bus clock gates
* - Powering up video processing HW blocks
* - Powering Up HDMI controller and PHY
*/
static const struct drm_mode_config_funcs meson_mode_config_funcs = {
.atomic_check = drm_atomic_helper_check,
.atomic_commit = drm_atomic_helper_commit,
.fb_create = drm_gem_fb_create,
};
static const struct drm_mode_config_helper_funcs meson_mode_config_helpers = {
.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
};
static irqreturn_t meson_irq(int irq, void *arg)
{
struct drm_device *dev = arg;
struct meson_drm *priv = dev->dev_private;
(void)readl_relaxed(priv->io_base + _REG(VENC_INTFLAG));
meson_crtc_irq(priv);
return IRQ_HANDLED;
}
static int meson_dumb_create(struct drm_file *file, struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
/*
* We need 64bytes aligned stride, and PAGE aligned size
*/
args->pitch = ALIGN(DIV_ROUND_UP(args->width * args->bpp, 8), SZ_64);
args->size = PAGE_ALIGN(args->pitch * args->height);
return drm_gem_cma_dumb_create_internal(file, dev, args);
}
DEFINE_DRM_GEM_CMA_FOPS(fops);
static struct drm_driver meson_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
/* IRQ */
.irq_handler = meson_irq,
/* CMA Ops */
DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE(meson_dumb_create),
/* Misc */
.fops = &fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = "20161109",
.major = 1,
.minor = 0,
};
static bool meson_vpu_has_available_connectors(struct device *dev)
{
struct device_node *ep, *remote;
/* Parses each endpoint and check if remote exists */
for_each_endpoint_of_node(dev->of_node, ep) {
/* If the endpoint node exists, consider it enabled */
remote = of_graph_get_remote_port(ep);
if (remote)
return true;
}
return false;
}
static struct regmap_config meson_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
.max_register = 0x1000,
};
static void meson_vpu_init(struct meson_drm *priv)
{
u32 value;
/*
* Slave dc0 and dc5 connected to master port 1.
* By default other slaves are connected to master port 0.
*/
value = VPU_RDARB_SLAVE_TO_MASTER_PORT(0, 1) |
VPU_RDARB_SLAVE_TO_MASTER_PORT(5, 1);
writel_relaxed(value, priv->io_base + _REG(VPU_RDARB_MODE_L1C1));
/* Slave dc0 connected to master port 1 */
value = VPU_RDARB_SLAVE_TO_MASTER_PORT(0, 1);
writel_relaxed(value, priv->io_base + _REG(VPU_RDARB_MODE_L1C2));
/* Slave dc4 and dc7 connected to master port 1 */
value = VPU_RDARB_SLAVE_TO_MASTER_PORT(4, 1) |
VPU_RDARB_SLAVE_TO_MASTER_PORT(7, 1);
writel_relaxed(value, priv->io_base + _REG(VPU_RDARB_MODE_L2C1));
/* Slave dc1 connected to master port 1 */
value = VPU_RDARB_SLAVE_TO_MASTER_PORT(1, 1);
writel_relaxed(value, priv->io_base + _REG(VPU_WRARB_MODE_L2C1));
}
static void meson_remove_framebuffers(void)
{
struct apertures_struct *ap;
ap = alloc_apertures(1);
if (!ap)
return;
/* The framebuffer can be located anywhere in RAM */
ap->ranges[0].base = 0;
ap->ranges[0].size = ~0;
drm_fb_helper_remove_conflicting_framebuffers(ap, "meson-drm-fb",
false);
kfree(ap);
}
struct meson_drm_soc_attr {
struct meson_drm_soc_limits limits;
const struct soc_device_attribute *attrs;
};
static const struct meson_drm_soc_attr meson_drm_soc_attrs[] = {
/* S805X/S805Y HDMI PLL won't lock for HDMI PHY freq > 1,65GHz */
{
.limits = {
.max_hdmi_phy_freq = 1650000,
},
.attrs = (const struct soc_device_attribute []) {
{ .soc_id = "GXL (S805*)", },
{ /* sentinel */ },
}
},
};
static int meson_drv_bind_master(struct device *dev, bool has_components)
{
struct platform_device *pdev = to_platform_device(dev);
const struct meson_drm_match_data *match;
struct meson_drm *priv;
struct drm_device *drm;
struct resource *res;
void __iomem *regs;
int ret, i;
/* Checks if an output connector is available */
if (!meson_vpu_has_available_connectors(dev)) {
dev_err(dev, "No output connector available\n");
return -ENODEV;
}
match = of_device_get_match_data(dev);
if (!match)
return -ENODEV;
drm = drm_dev_alloc(&meson_driver, dev);
if (IS_ERR(drm))
return PTR_ERR(drm);
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv) {
ret = -ENOMEM;
goto free_drm;
}
drm->dev_private = priv;
priv->drm = drm;
priv->dev = dev;
priv->compat = match->compat;
priv->afbcd.ops = match->afbcd_ops;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vpu");
regs = devm_ioremap_resource(dev, res);
if (IS_ERR(regs)) {
ret = PTR_ERR(regs);
goto free_drm;
}
priv->io_base = regs;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hhi");
if (!res) {
ret = -EINVAL;
goto free_drm;
}
/* Simply ioremap since it may be a shared register zone */
regs = devm_ioremap(dev, res->start, resource_size(res));
if (!regs) {
ret = -EADDRNOTAVAIL;
goto free_drm;
}
priv->hhi = devm_regmap_init_mmio(dev, regs,
&meson_regmap_config);
if (IS_ERR(priv->hhi)) {
dev_err(&pdev->dev, "Couldn't create the HHI regmap\n");
ret = PTR_ERR(priv->hhi);
goto free_drm;
}
priv->canvas = meson_canvas_get(dev);
if (IS_ERR(priv->canvas)) {
ret = PTR_ERR(priv->canvas);
goto free_drm;
}
ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_osd1);
if (ret)
goto free_drm;
ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_0);
if (ret) {
meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
goto free_drm;
}
ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_1);
if (ret) {
meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
goto free_drm;
}
ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_2);
if (ret) {
meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
meson_canvas_free(priv->canvas, priv->canvas_id_vd1_1);
goto free_drm;
}
priv->vsync_irq = platform_get_irq(pdev, 0);
ret = drm_vblank_init(drm, 1);
if (ret)
goto free_drm;
/* Assign limits per soc revision/package */
for (i = 0 ; i < ARRAY_SIZE(meson_drm_soc_attrs) ; ++i) {
if (soc_device_match(meson_drm_soc_attrs[i].attrs)) {
priv->limits = &meson_drm_soc_attrs[i].limits;
break;
}
}
/* Remove early framebuffers (ie. simplefb) */
meson_remove_framebuffers();
ret = drmm_mode_config_init(drm);
if (ret)
goto free_drm;
drm->mode_config.max_width = 3840;
drm->mode_config.max_height = 2160;
drm->mode_config.funcs = &meson_mode_config_funcs;
drm->mode_config.helper_private = &meson_mode_config_helpers;
/* Hardware Initialization */
meson_vpu_init(priv);
meson_venc_init(priv);
meson_vpp_init(priv);
meson_viu_init(priv);
if (priv->afbcd.ops) {
ret = priv->afbcd.ops->init(priv);
if (ret)
return ret;
}
/* Encoder Initialization */
ret = meson_venc_cvbs_create(priv);
if (ret)
goto free_drm;
if (has_components) {
ret = component_bind_all(drm->dev, drm);
if (ret) {
dev_err(drm->dev, "Couldn't bind all components\n");
goto free_drm;
}
}
ret = meson_plane_create(priv);
if (ret)
goto free_drm;
ret = meson_overlay_create(priv);
if (ret)
goto free_drm;
ret = meson_crtc_create(priv);
if (ret)
goto free_drm;
ret = drm_irq_install(drm, priv->vsync_irq);
if (ret)
goto free_drm;
drm_mode_config_reset(drm);
drm_kms_helper_poll_init(drm);
platform_set_drvdata(pdev, priv);
ret = drm_dev_register(drm, 0);
if (ret)
goto uninstall_irq;
drm_fbdev_generic_setup(drm, 32);
return 0;
uninstall_irq:
drm_irq_uninstall(drm);
free_drm:
drm_dev_put(drm);
return ret;
}
static int meson_drv_bind(struct device *dev)
{
return meson_drv_bind_master(dev, true);
}
static void meson_drv_unbind(struct device *dev)
{
struct meson_drm *priv = dev_get_drvdata(dev);
struct drm_device *drm = priv->drm;
if (priv->canvas) {
meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
meson_canvas_free(priv->canvas, priv->canvas_id_vd1_1);
meson_canvas_free(priv->canvas, priv->canvas_id_vd1_2);
}
if (priv->afbcd.ops) {
priv->afbcd.ops->reset(priv);
meson_rdma_free(priv);
}
drm_dev_unregister(drm);
drm_irq_uninstall(drm);
drm_kms_helper_poll_fini(drm);
drm_dev_put(drm);
}
static const struct component_master_ops meson_drv_master_ops = {
.bind = meson_drv_bind,
.unbind = meson_drv_unbind,
};
static int __maybe_unused meson_drv_pm_suspend(struct device *dev)
{
struct meson_drm *priv = dev_get_drvdata(dev);
if (!priv)
return 0;
return drm_mode_config_helper_suspend(priv->drm);
}
static int __maybe_unused meson_drv_pm_resume(struct device *dev)
{
struct meson_drm *priv = dev_get_drvdata(dev);
if (!priv)
return 0;
meson_vpu_init(priv);
meson_venc_init(priv);
meson_vpp_init(priv);
meson_viu_init(priv);
if (priv->afbcd.ops)
priv->afbcd.ops->init(priv);
return drm_mode_config_helper_resume(priv->drm);
}
static int compare_of(struct device *dev, void *data)
{
DRM_DEBUG_DRIVER("Comparing of node %pOF with %pOF\n",
dev->of_node, data);
return dev->of_node == data;
}
/* Possible connectors nodes to ignore */
static const struct of_device_id connectors_match[] = {
{ .compatible = "composite-video-connector" },
{ .compatible = "svideo-connector" },
{ .compatible = "hdmi-connector" },
{ .compatible = "dvi-connector" },
{}
};
static int meson_probe_remote(struct platform_device *pdev,
struct component_match **match,
struct device_node *parent,
struct device_node *remote)
{
struct device_node *ep, *remote_node;
int count = 1;
/* If node is a connector, return and do not add to match table */
if (of_match_node(connectors_match, remote))
return 1;
component_match_add(&pdev->dev, match, compare_of, remote);
for_each_endpoint_of_node(remote, ep) {
remote_node = of_graph_get_remote_port_parent(ep);
if (!remote_node ||
remote_node == parent || /* Ignore parent endpoint */
!of_device_is_available(remote_node)) {
of_node_put(remote_node);
continue;
}
count += meson_probe_remote(pdev, match, remote, remote_node);
of_node_put(remote_node);
}
return count;
}
static int meson_drv_probe(struct platform_device *pdev)
{
struct component_match *match = NULL;
struct device_node *np = pdev->dev.of_node;
struct device_node *ep, *remote;
int count = 0;
for_each_endpoint_of_node(np, ep) {
remote = of_graph_get_remote_port_parent(ep);
if (!remote || !of_device_is_available(remote)) {
of_node_put(remote);
continue;
}
count += meson_probe_remote(pdev, &match, np, remote);
of_node_put(remote);
}
if (count && !match)
return meson_drv_bind_master(&pdev->dev, false);
/* If some endpoints were found, initialize the nodes */
if (count) {
dev_info(&pdev->dev, "Queued %d outputs on vpu\n", count);
return component_master_add_with_match(&pdev->dev,
&meson_drv_master_ops,
match);
}
/* If no output endpoints were available, simply bail out */
return 0;
};
static struct meson_drm_match_data meson_drm_gxbb_data = {
.compat = VPU_COMPATIBLE_GXBB,
};
static struct meson_drm_match_data meson_drm_gxl_data = {
.compat = VPU_COMPATIBLE_GXL,
};
static struct meson_drm_match_data meson_drm_gxm_data = {
.compat = VPU_COMPATIBLE_GXM,
.afbcd_ops = &meson_afbcd_gxm_ops,
};
static struct meson_drm_match_data meson_drm_g12a_data = {
.compat = VPU_COMPATIBLE_G12A,
.afbcd_ops = &meson_afbcd_g12a_ops,
};
static const struct of_device_id dt_match[] = {
{ .compatible = "amlogic,meson-gxbb-vpu",
.data = (void *)&meson_drm_gxbb_data },
{ .compatible = "amlogic,meson-gxl-vpu",
.data = (void *)&meson_drm_gxl_data },
{ .compatible = "amlogic,meson-gxm-vpu",
.data = (void *)&meson_drm_gxm_data },
{ .compatible = "amlogic,meson-g12a-vpu",
.data = (void *)&meson_drm_g12a_data },
{}
};
MODULE_DEVICE_TABLE(of, dt_match);
static const struct dev_pm_ops meson_drv_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(meson_drv_pm_suspend, meson_drv_pm_resume)
};
static struct platform_driver meson_drm_platform_driver = {
.probe = meson_drv_probe,
.driver = {
.name = "meson-drm",
.of_match_table = dt_match,
.pm = &meson_drv_pm_ops,
},
};
module_platform_driver(meson_drm_platform_driver);
MODULE_AUTHOR("Jasper St. Pierre <jstpierre@mecheye.net>");
MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");