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| author | Oak Zeng <Oak.Zeng@amd.com> | 2019-08-01 14:55:45 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-08-15 10:57:48 -0500 |
| commit | 3ff985485b29693376bb470a40b7aba4394a189b (patch) | |
| tree | f54b01a4e7ed94d5307557aadf5611c0890a2f62 /drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c | |
| parent | 675a9e38b39c4114dbcf1ed2e7f7a0e5a6a5e4b4 (diff) | |
| download | linux-3ff985485b29693376bb470a40b7aba4394a189b.tar.gz linux-3ff985485b29693376bb470a40b7aba4394a189b.tar.bz2 linux-3ff985485b29693376bb470a40b7aba4394a189b.zip | |
drm/amdgpu: Export function to flush TLB of specific vm hub
This is for kfd to reuse amdgpu TLB invalidation function.
On gfx10, kfd only needs to flush TLB on gfx hub but not
on mm hub. So export a function for KFD flush TLB only on
specific hub.
Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Christian Konig <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c index d79ab1da9e07..ac14d473a143 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c @@ -251,7 +251,9 @@ int amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset, } mb(); amdgpu_asic_flush_hdp(adev, NULL); - amdgpu_gmc_flush_gpu_tlb(adev, 0, 0); + for (i = 0; i < adev->num_vmhubs; i++) + amdgpu_gmc_flush_gpu_tlb(adev, 0, i, 0); + return 0; } @@ -312,7 +314,7 @@ int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset, #ifdef CONFIG_DRM_AMDGPU_GART_DEBUGFS unsigned i,t,p; #endif - int r; + int r, i; if (!adev->gart.ready) { WARN(1, "trying to bind memory to uninitialized GART !\n"); @@ -336,7 +338,8 @@ int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset, mb(); amdgpu_asic_flush_hdp(adev, NULL); - amdgpu_gmc_flush_gpu_tlb(adev, 0, 0); + for (i = 0; i < adev->num_vmhubs; i++) + amdgpu_gmc_flush_gpu_tlb(adev, 0, i, 0); return 0; } |