This fixes a few problems in the vop crtc cleanup (handling error
paths and cleanup upon exit):
* The vop_create_crtc() error path had an unsafe version of the
iterator used for iterating over all planes (though it was
destroying planes in the iterator so should have used the safe
version)
* vop_destroy_crtc() - wasn't calling vop_plane_destroy(), which made
slub_debug unhappy, at least if we ended up running this due to a
deferred probe.
* In vop_create_crtc() if we were missing the "port" device tree node
we would fail but not return an error (found by code inspection).
Fix these problems.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
When a VOP is re-enabled, it will start scanning right away the
framebuffers that were configured from the last time, even if those have
been destroyed already.
To prevent the VOP from trying to access freed memory, disable all its
windows when the CRTC is being disabled, then each window will get a
valid framebuffer address before it's enabled again.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://lkml.kernel.org/g/CAAObsKAv+05ih5U+=4kic_NsjGMhfxYheHR8xXXmacZs+p5SHw@mail.gmail.com
When closing the DRM device while a vblank is pending, we access
file_priv after it has been free'd, which gives:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
...
PC is at __list_add+0x5c/0xe8
LR is at send_vblank_event+0x54/0x1f0
...
[<c02952e8>] (__list_add) from [<c031a7b4>] (send_vblank_event+0x54/0x1f0)
[<c031a760>] (send_vblank_event) from [<c031a9c0>] (drm_send_vblank_event+0x70/0x78)
[<c031a950>] (drm_send_vblank_event) from [<c031a9f8>] (drm_crtc_send_vblank_event+0x30/0x34)
[<c031a9c8>] (drm_crtc_send_vblank_event) from [<c0339ad8>] (vop_isr+0x224/0x28c)
[<c03398b4>] (vop_isr) from [<c0081780>] (handle_irq_event_percpu+0x12c/0x3e4)
This can be triggered somewhat reliably with:
modetest -M rockchip -v -s ...
Add a preclose hook to the driver so that we can discard any pending
vblank events when the device is closed.
Signed-off-by: John Keeping <john@metanate.com>
If the geometry of a crtc is changing in an atomic update then we must
validate the plane size against the new state of the crtc and not the
current size, otherwise if the crtc size is increasing the plane will be
cropped at the previous size and will not fill the screen.
Signed-off-by: John Keeping <john@metanate.com>
Commit dbb3d94 (drm/rockchip: vop: move interrupt registers into
vop_data) introduced new macros for updating the interrupt control
registers but these always use the mask from the register definition
without refining it for the particular bits that are being changed.
This means that whenever we enable/disable a particular interrupt we end
up disabling all of the others as a side effect.
Signed-off-by: John Keeping <john@metanate.com>
Add support for Synopsys DesignWare MIPI DSI controller which is
embedded in the rk3288 SoCs.
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Acked-by: Mark Yao <mark.yao@rock-chips.com>
Since the mipi dsi driver need to use the clock of vop to make the
calculation of Blanking. But sometimes the clock driver can not set a
accurate clock_rate for vop, get it by clk_round_rate before mode_set,
so we can get the true value.
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Acked-by: Mark Yao <mark.yao@rock-chips.com>
Fixes: a67719d182 ("drm/rockchip: vop: spilt register related into rockchip_reg_vop.c")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Mark Yao <mark.yao@rock-chips.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
There are two version scale control register found on vop,
scale full version found on rk3288, support extension registers.
and scale little version found on rk3036, only support common scale.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Both connecter gate and out_mode are not conflict with mode set
configure. Direct setting connecter gate and out_mode, that allow
connector do rockchip_drm_crtc_mode_config after mode set.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Rk3288 vop timing registers is immediately register, when configure
timing on display active time, will cause tearing. use dclk reset is
not a good idea to avoid this tearing. we can avoid tearing by using
standby register.
Vop standby register will take effect at end of current frame, and
go back to work immediately when exit standby.
So we can use standby register to protect this context.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Rockchip vop not support hw vblank counter, needed check the committed
register if it's really take effect.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
For vop, power by enable/disable is more suitable then legacy dpms
function, and enable/disable more closely to the new atomic API.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
No functional update, drm_vblank_* is the legacy version of
drm_crtc_vblank_*. and use new api make driver more clean.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Done with coccinelle for the most part. It choked on
msm/mdp/mdp5/mdp5_plane.c like so:
"BAD:!!!!! enum drm_plane_type type;"
No idea how to deal with that, so I just fixed that up
by hand.
Also it thinks '...' is part of the semantic patch, so I put an
'int DOTDOTDOT' placeholder in its place and got rid of it with
sed afterwards.
I didn't convert drm_plane_init() since passing the varargs through
would mean either cpp macros or va_list, and I figured we don't
care about these legacy functions enough to warrant the extra pain.
@@
typedef uint32_t;
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
int drm_universal_plane_init(struct drm_device *dev,
struct drm_plane *plane,
unsigned long possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats,
unsigned int format_count,
enum drm_plane_type type
+ ,const char *name, int DOTDOTDOT
)
{ ... }
@@
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
int drm_universal_plane_init(struct drm_device *dev,
struct drm_plane *plane,
unsigned long possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats,
unsigned int format_count,
enum drm_plane_type type
+ ,const char *name, int DOTDOTDOT
);
@@
expression E1, E2, E3, E4, E5, E6, E7;
@@
drm_universal_plane_init(E1, E2, E3, E4, E5, E6, E7
+ ,NULL
)
v2: Split crtc and plane changes apart
Pass NUL for no-name instead of ""
Leave drm_plane_init() alone
v3: Add ', or NULL...' to @name kernel doc (Jani)
Annotate the function with __printf() attribute (Jani)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449670795-2853-1-git-send-email-ville.syrjala@linux.intel.com
Done with coccinelle for the most part. However, it thinks '...' is
part of the semantic patch, so I put an 'int DOTDOTDOT' placeholder
in its place and got rid of it with sed afterwards.
I didn't convert drm_crtc_init() since passing the varargs through
would mean either cpp macros or va_list, and I figured we don't
care about these legacy functions enough to warrant the extra pain.
@@
identifier dev, crtc, primary, cursor, funcs;
@@
int drm_crtc_init_with_planes(struct drm_device *dev,
struct drm_crtc *crtc,
struct drm_plane *primary, struct drm_plane *cursor,
const struct drm_crtc_funcs *funcs
+ ,const char *name, int DOTDOTDOT
)
{ ... }
@@
identifier dev, crtc, primary, cursor, funcs;
@@
int drm_crtc_init_with_planes(struct drm_device *dev,
struct drm_crtc *crtc,
struct drm_plane *primary, struct drm_plane *cursor,
const struct drm_crtc_funcs *funcs
+ ,const char *name, int DOTDOTDOT
);
@@
expression E1, E2, E3, E4, E5;
@@
drm_crtc_init_with_planes(E1, E2, E3, E4, E5
+ ,NULL
)
v2: Split crtc and plane changes apart
Pass NULL for no-name instead of ""
Leave drm_crtc_init() alone
v3: Add ', or NULL...' to @name kernel doc (Jani)
Annotate the function with __printf() attribute (Jani)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449670771-2751-1-git-send-email-ville.syrjala@linux.intel.com
Passing -1 as the pipe for vblank events now triggers a WARN_ON, but had
previously made multi-screen unusable anyway. Pass the correct pipe to
the event-send function, and use the new API to make this a bit easier
for us.
Fixes WARN present since cc1ef118fc for every pageflip event sent:
[ 209.549969] ------------[ cut here ]------------
[ 209.554592] WARNING: CPU: 3 PID: 238 at drivers/gpu/drm/drm_irq.c:924 drm_vblank_count_and_time+0x80/0x88 [drm]()
[ 209.564832] Modules linked in: [...]
[ 209.612401] CPU: 3 PID: 238 Comm: irq/41-ff940000 Tainted: G W 4.3.0-rc6+ #71
[ 209.620647] Hardware name: Rockchip (Device Tree)
[ 209.625348] [<c001bb80>] (unwind_backtrace) from [<c001615c>] (show_stack+0x20/0x24)
[ 209.633079] [<c001615c>] (show_stack) from [<c02b2c50>] (dump_stack+0x8c/0x9c)
[ 209.640289] [<c02b2c50>] (dump_stack) from [<c0052e88>] (warn_slowpath_common+0x94/0xc4)
[ 209.648364] [<c0052e88>] (warn_slowpath_common) from [<c0052f74>] (warn_slowpath_null+0x2c/0x34)
[ 209.657139] [<c0052f74>] (warn_slowpath_null) from [<bf17dc30>] (drm_vblank_count_and_time+0x80/0x88 [drm])
[ 209.666875] [<bf17dc30>] (drm_vblank_count_and_time [drm]) from [<bf17e484>] (drm_send_vblank_event+0x74/0x7c [drm])
[ 209.677385] [<bf17e484>] (drm_send_vblank_event [drm]) from [<bf4c1144>] (vop_win_state_complete+0x4c/0x70 [rockchip_drm_vop])
[ 209.688757] [<bf4c1144>] (vop_win_state_complete [rockchip_drm_vop]) from [<bf4c3bdc>] (vop_isr_thread+0x170/0x1d4 [rockchip_drm_vop])
[ 209.700822] [<bf4c3bdc>] (vop_isr_thread [rockchip_drm_vop]) from [<c00ab93c>] (irq_thread_fn+0x2c/0x50)
[ 209.710284] [<c00ab93c>] (irq_thread_fn) from [<c00abcac>] (irq_thread+0x13c/0x188)
[ 209.717927] [<c00abcac>] (irq_thread) from [<c00723c8>] (kthread+0xec/0x104)
[ 209.724965] [<c00723c8>] (kthread) from [<c0011638>] (ret_from_fork+0x14/0x3c)
[ 209.732171] ---[ end trace 0690bc604f5d535d ]---
Signed-off-by: Daniel Stone <daniels@collabora.com>
Cc: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Tested-By: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Thierry Reding <treding@nvidia.com>
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
VOP_WINx_DSP_ST does not require subtracting 1 from the values written to
it. It actually causes the screen to be shifted by one pixel.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Tested-by: Yakir Yang <ykk@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Dominik Behr <dbehr@chromium.org>
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
When doing the initial setup both the hclk and the aclk need to be
enabled otherwise the board will simply hang. This only occurs when
building the vop driver as a module, when its built-in the initial setup
happens to run before the clock framework shuts of unused clocks
(including the aclk).
While there also switch to doing prepare and enable in one step rather
then separate steps to reduce the amount of code required.
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Acked-by: Mark Yao <mark.yao@rock-chips.com>
Tested-by: Yakir Yang <ykk@rock-chips.com>
Tested-by: Romain Perier <romain.perier@gmail.com>
The registers will be reset to default values when whole
power domain off, so restore registers from regsbak.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Win2/3 support multiple area function, but we haven't found
a suitable way to use it yet, so let's just use them as other windows
with only area 0 enabled.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
vir_stride need number words of the virtual width, and fb->pitches
save bytes_per_pixel, so just div 4 switch to stride.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
hardware cursor windows only have some fixed size, and not support
width virtual, when move hardware cursor windows outside of left,
the display would be wrong, so this window can't for cursor now.
And Tag hardware cursor window as a overlay is wrong, will make
userspace wrong behaviour.
So just remove the hardware cursor window
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Window 1 support scale and yuv format, it's waste use it for a
cursor, use window 3 is enough.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
VOP can support BGR formats in all windows thanks to red/blue swap option
provided in WINx_CTRL0 registers. This patch enables support for
ABGR8888, XBGR8888, BGR888 and BGR565 formats by using this feature.
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
These files are built off of a tristate Kconfig option and also contain
modular function calls so they should explicitly include module.h to
avoid compile breakage during header shuffles done in the future.
Cc: David Airlie <airlied@linux.ie>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
platform_get_irq() can return negative error values and we already test for
these. Therefore the variable holding this value should be signed to not
loose possible error values.
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-By: Daniel Kurtz <djkurtz@chromium.org>
The function disables the dclk at the beginning, so don't simply return
when an error happens, but instead enable the clock again, so that
enable and disable calls are balanced.
ret_clk is introduced to hold the clk_enable result and not mangle the
original error code.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Vop standby will take effect at end of current frame,
if dsp_hold_valid_irq happen, it means vop standby complete.
we must wait standby complete when we want to disable aclk,
if not, memory bus maybe dead.
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
there is a Bug that:
vop_enable()->drm_vblank_on, drm_vblank_on may call vop
enable vblank. if it happen, vblank enable would failed,
then cause irq status error. because is_enabled value is set
after drm_vblank_on.
after enable vop clocks and iommu regs, we can sure that
R/W vop regs and do vop plane flip is safe, so place
is_enabled = true after enable iommu is suitable.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
drm dpms have many power modes: ON,OFF,SUSPEND,STANDBY, etc.
but vop only have enable/disable mode, maybe case such bug:
--> DRM_DPMS_ON: power on vop
--> DRM_DPMS_SUSPEND: power off vop
--> DRM_DPMS_OFF: already power off at SUSPEND, crash
so use a bool val is more suitable.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Vop set wrong vsync/hsync polarity, it may cause some
display problem. known problem is that caused HDMI hdcp
authenticate failed, caused pixel offset with hdmi display.
the polarity description at RK3288 TRM doc:
dsp_vsync_pol
VSYNC polarity
1'b0 : negative
1'b1 : positive
dsp_hsync_pol
HSYNC polarity
1'b0 : negative
1'b1 : positive
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
To build the rockchip dw_hdmi driver as a module, the
rockchip_drm_encoder_get_mux_id and rockchip_drm_crtc_mode_config
functions need to be exported.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This patch adds the basic structure of a DRM Driver for Rockchip Socs.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Rob Clark <robdclark@gmail.com>
