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path: root/drivers/gpu/drm/vkms/vkms_plane.c
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2020-01-28drm/vkms: plane_state->fb iff plane_state->crtcDaniel Vetter
Checking both is one too much, so wrap a WARN_ON around it to stope the copypasta. Reviewed-by: Rodrigo Siqueira <rodrigosiqueira@gmail.com> Tested-by: Rodrigo Siqueira <rodrigosiqueira@gmail.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Cc: Haneen Mohammed <hamohammed.sa@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191213172612.1514842-9-daniel.vetter@ffwll.ch
2019-07-15drm/vkms: drop use of drmP.hSam Ravnborg
Drop use of the deprecated drmP.h header. Replace it with the necessary includes in the individual .c files. The header files was self-contained, and extra includes were not added there. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Acked-by: Emil Velikov <emil.velikov@collabora.com> Cc: Haneen Mohammed <hamohammed.sa@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Link: https://patchwork.freedesktop.org/patch/msgid/20190630061922.7254-13-sam@ravnborg.org
2019-07-12drm/vkms: Rename vkms_crc.c into vkms_composer.cRodrigo Siqueira
As a preparation work for introducing writeback to vkms, this patch renames the file vkms_crc.c into vkms_composer.c. Accordingly, it also adjusts the functions and data structures to match the changes. No functional change. Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/dea62063077ebf5cc1dfce8876e56788d15367e6.1561491964.git.rodrigosiqueiramelo@gmail.com
2019-07-12drm/vkms: Avoid assigning 0 for possible_crtcRodrigo Siqueira
When vkms invoke drm_universal_plane_init(), it sets 0 for possible_crtcs parameter which means that planes can't be attached to any CRTC. It currently works due to some safeguard in the drm_crtc file; however, it is possible to identify the problem by trying to append a second connector. This patch fixes this issue by modifying vkms_plane_init() to accept an index parameter which makes the code a little bit more flexible and avoid set zero to possible_crtcs. Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/d67849c62a8d8ace1a0af455998b588798a4c45f.1561491964.git.rodrigosiqueiramelo@gmail.com
2019-06-18drm/vkms: Move format arrays to vkms_plane.cDaniel Vetter
No need to have them multiple times. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Cc: Haneen Mohammed <hamohammed.sa@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Reviewed-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Tested-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190606222751.32567-5-daniel.vetter@ffwll.ch
2019-02-10drm/vkms: Fix license inconsistentRodrigo Siqueira
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
2018-12-04drm/vkms: Remove set but not used variable 'vkms_obj'YueHaibing
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
2018-11-29drm/vkms: Fix plane duplicate_stateDaniel Vetter
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
2018-09-11drm/vkms: Compute CRC with Cursor PlaneHaneen Mohammed
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
2018-09-11drm/vkms: Add cursor plane supportHaneen Mohammed
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
2018-08-03drm/vkms: Implement CRC debugfs APIHaneen Mohammed
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
2018-08-03drm/vkms: Subclass plane stateHaneen Mohammed
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
2018-07-30drm/vkms: Add atomic_helper_check_plane_stateHaneen Mohammed
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
2018-07-30drm/vkms: map/unmap buffers in [prepare/cleanup]_fb hooksHaneen Mohammed
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
2018-07-12drm/vkms: Add framebuffer and plane helpersRodrigo Siqueira
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
2018-07-05drm/vkms: Add basic CRTC initializationRodrigo Siqueira
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