From 3ff985485b29693376bb470a40b7aba4394a189b Mon Sep 17 00:00:00 2001 From: Oak Zeng Date: Thu, 1 Aug 2019 14:55:45 -0500 Subject: 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 Reviewed-by: Christian Konig Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c') 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; } -- cgit v1.2.3