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drm/amdgpu: Add gem_prime_mmap support

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v2: drop hdp invalidate/flush.
v3: honor pgoff during prime mmap. Add a barrier after cpu access.
v4: drop begin/end_cpu_access() for now, revisit later.

Signed-off-by: Samuel Li <Samuel.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Samuel Li
2017-08-22 15:25:33 -04:00
committed by Alex Deucher
parent aec8d5cc28
commit dfced2e4bc
3 changed files with 36 additions and 0 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
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@@ -855,6 +855,7 @@ static struct drm_driver kms_driver = {
.gem_prime_import_sg_table = amdgpu_gem_prime_import_sg_table,
.gem_prime_vmap = amdgpu_gem_prime_vmap,
.gem_prime_vunmap = amdgpu_gem_prime_vunmap,
.gem_prime_mmap = amdgpu_gem_prime_mmap,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,