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Fixes license inconsistent related to the VKMS driver and remove the
redundant boilerplate comment.
Fixes: 854502fa0a38 ("drm/vkms: Add basic CRTC initialization")
Cc: stable@vger.kernel.org
Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190206140116.7qvy2lpwbcd7wds6@smtp.gmail.com
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Fixes gcc '-Wunused-but-set-variable' warning:
drivers/gpu/drm/vkms/vkms_plane.c: In function 'vkms_prepare_fb':
drivers/gpu/drm/vkms/vkms_plane.c:144:26: warning:
variable 'vkms_obj' set but not used [-Wunused-but-set-variable]
It never used since introduction in commit
8ce1bb0b5337 ("drm/vkms: map/unmap buffers in [prepare/cleanup]_fb hooks")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1543634444-186448-1-git-send-email-yuehaibing@huawei.com
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We need to handle allocation failures and bail out. While at it, tune
the allocation failures down to debug level.
syzbot injected an allocation failure and then hit this WARN_ON.
Reported-by: syzbot+eb6e5365f23c02517dda@syzkaller.appspotmail.com
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Cc: Gustavo Padovan <gustavo.padovan@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20181128101033.4840-1-daniel.vetter@ffwll.ch
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This patch compute CRC for output frame with cursor and primary plane.
Blend cursor with primary plane and compute CRC on the resulted frame.
This currently passes cursor-size-change, and cursor-64x64-[onscreen,
offscreen, sliding, random, dpms, rapid-movement] from igt
kms_cursor_crc tests.
Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/b1749f5c90da5721a481f12740e2e370edb4a752.1536210181.git.hamohammed.sa@gmail.com
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Add cursor plane support and update vkms_plane_atomic_check to enable
positioning cursor plane.
Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/c69078820eacf3246fa77beb0c6227b692cc5e82.1536210181.git.hamohammed.sa@gmail.com
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This patch implement the necessary functions to compute and add CRCs
entries:
- Implement the set_crc_source() callback.
- Compute CRC using crc32 on the visible part of the framebuffer.
- Use ordered workqueue per output to compute and add CRC at the end
of a vblank.
- Use appropriate synchronization methods since the CRC computation must
be atomic wrt the generated vblank event for a given atomic update, by
using spinlock across atomic_begin/atomic_flush to wrap the event
handling code completely and match the flip event with the CRC.
Since vkms_crc_work_handle() can sleep, spinlock can't be acquired
while accessing vkms_output->primary_crc to compute CRC.
To make sure the data is updated and released without conflict with
the vkms_crc_work_handle(), the work_struct is flushed @crtc_destroy
and the data is updated before scheduling the work handle again, as
follow:
* CRC data update:
1- store vkms_crc_data {fb, src} per plane_state
2- @plane_duplicate_state -> allocate vkms_crc_data
3- during atomic commit (@atomic_update) ->
a) copy {fb, src} to plane_state->crc_data
b) get reference to fb,
3- @plane_destroy_state -> a) if (fb refcount) remove reference to fb
b) deallocate crc_data
* Atomic Commit:
1- vkms_plane_atomic_check
2- vkms_prepare_fb -> vmap vkms_gem_obj->vaddr
3- atomic_begin -> hold crc spinlock
4- atomic_plane_update -> a) update vkms_output->primary_crc
b) get reference to fb
5- atomic_flush -> a) send vblank event while holding event_lock
b) release crc spinlock
* hrtimer regular callback:
1- hold crc spinlock
2- drm_crtc_handle_vblank()
3- queue vkms_crc_work_handle
4- release crc spinlock
* cleanup:
1- @cleanup_fb ->vunmap vkms_gem_obj->vaddr
2- @crtc_destroy -> flush work struct
3- @plane_destroy -> a) if (fb refcount) remove reference to fb
b) deallocate crc_data
Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
[seanpaul fixed typo in vkms_crtc s/vblamk/vblank/]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/b948327f48c3e70ab232b4a0848ee6d033b26484.1533171495.git.hamohammed.sa@gmail.com
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Subclass plane state struct to enable storing driver's private
state. This patch only adds the base drm_plane_state struct and
the atomic functions that handle it.
Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/c35c512c8987a7255aac94a9eb985d2dd3e6c90d.1533171495.git.hamohammed.sa@gmail.com
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Call atomic_helper_check_plane_state to clip plane coordinates.
Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/b8c1bfed8b5720cc4794ace41cf49af66c99a48c.1532446182.git.hamohammed.sa@gmail.com
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This patch map/unmap GEM backing memory to kernel address space
in prepare/cleanup_fb respectively and cache the virtual address
for later use.
Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/17d19f61b6539ce1b614c59762d04d816261b307.1532446182.git.hamohammed.sa@gmail.com
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This patch appends the minimum helpers related to framebuffer and plane
to make vkms minimally usable.
Changes since V1:
- None
Changes since V2:
- Squash "Add plane helper struct" and "Add helper for framebuffer
create"
Changes since V3:
Daniel Vetter:
- Remove atomic_check from plane helper
Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/d37807da7d3b39444b4c9abb149fe3c518d07c61.1531402095.git.rodrigosiqueiramelo@gmail.com
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This commit adds the essential infrastructure for around CRTCs which
is composed of: a new data struct for output data information, a
function for creating planes, and a simple encoder attached to the
connector. Finally, due to the introduction of a new initialization
function, connectors were moved from vkms_drv.c to vkms_display.c.
Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Reviewed-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b6e27bc6a54f5cb340658fa5969f7b48fbfbf1b7.1526514457.git.rodrigosiqueiramelo@gmail.com
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