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| author | Junwei Zhang <Jerry.Zhang@amd.com> | 2016-09-08 10:13:32 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-09-14 15:10:26 -0400 |
| commit | aa1d562e645d2542b48bdd42903726adfc87efb3 (patch) | |
| tree | 7f3d07a3afa835a5ebfe30bd649398caca796daf /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | ad2473af273b81cf184d6e43a395a128d4db7b87 (diff) | |
| download | linux-aa1d562e645d2542b48bdd42903726adfc87efb3.tar.bz2 | |
drm/amdgpu: add a new helper to free a BO in kernel allocations
Free the BO allocated by amdgpu_bo_create_kernel()
Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index b17734e0ecc8..162411bd8145 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -287,6 +287,35 @@ error_free: return r; } +/** + * amdgpu_bo_free_kernel - free BO for kernel use + * + * @bo: amdgpu BO to free + * + * unmaps and unpin a BO for kernel internal use. + */ +void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr, + void **cpu_addr) +{ + if (*bo == NULL) + return; + + if (likely(amdgpu_bo_reserve(*bo, false) == 0)) { + if (cpu_addr) + amdgpu_bo_kunmap(*bo); + + amdgpu_bo_unpin(*bo); + amdgpu_bo_unreserve(*bo); + } + amdgpu_bo_unref(bo); + + if (gpu_addr) + *gpu_addr = 0; + + if (cpu_addr) + *cpu_addr = NULL; +} + int amdgpu_bo_create_restricted(struct amdgpu_device *adev, unsigned long size, int byte_align, bool kernel, u32 domain, u64 flags, |