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drm/radeon/kms: add support for semaphores v3

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They are used to sync between rings, while fences
sync between a ring and the cpu.

v2 Fix radeon_semaphore_driver_fini when no semaphore were
allocated.

v3 Initialize list early on to avoid issue in case or early
error

Signed-off-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Christian König
2011-09-15 19:02:22 +02:00
committed by Dave Airlie
parent 7465280c07
commit 15d3332f31
13 changed files with 248 additions and 6 deletions
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drivers/gpu/drm/radeon/rv770.c
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@@ -1270,6 +1270,7 @@ void rv770_fini(struct radeon_device *rdev)
rv770_pcie_gart_fini(rdev);
r600_vram_scratch_fini(rdev);
radeon_gem_fini(rdev);
radeon_semaphore_driver_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_agp_fini(rdev);
radeon_bo_fini(rdev);