drm/radeon: rework page flip handling v4

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Instead of trying to flip inside the vblank period when
the buffer is idle, offload blocking for idle to a kernel
thread and program the flip directly into the hardware.

v2: add error handling, fix EBUSY handling
v3: add proper exclusive_lock handling
v4: update crtc->primary->fb when the flip actually happens

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

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This commit is contained in:

Christian König 2014-06-03 18:13:21 -04:00 • committed by Dave Airlie

parent b15eb4ea15

commit fa7f517cb2

3 changed files with 147 additions and 112 deletions

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16

drivers/gpu/drm/radeon/radeon.h

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241

drivers/gpu/drm/radeon/radeon_display.c

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4

drivers/gpu/drm/radeon/radeon_mode.h

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