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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/gmc_v10_0.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/gmc_v10_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c index ee16ec1a01bb..aafb16064338 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c @@ -230,8 +230,8 @@ static void gmc_v10_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid, * * Flush the TLB for the requested page table. */ -static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, - uint32_t vmid, uint32_t flush_type) +static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid, + uint32_t vmhub, uint32_t flush_type) { struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring; struct dma_fence *fence; @@ -244,7 +244,14 @@ static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, mutex_lock(&adev->mman.gtt_window_lock); - gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_MMHUB_0, 0); + if (vmhub == AMDGPU_MMHUB_0) { + gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_MMHUB_0, 0); + mutex_unlock(&adev->mman.gtt_window_lock); + return; + } + + BUG_ON(vmhub != AMDGPU_GFXHUB_0); + if (!adev->mman.buffer_funcs_enabled || !adev->ib_pool_ready || adev->in_gpu_reset) { @@ -756,7 +763,8 @@ static int gmc_v10_0_gart_enable(struct amdgpu_device *adev) gfxhub_v2_0_set_fault_enable_default(adev, value); mmhub_v2_0_set_fault_enable_default(adev, value); - gmc_v10_0_flush_gpu_tlb(adev, 0, 0); + gmc_v10_0_flush_gpu_tlb(adev, 0, AMDGPU_MMHUB_0, 0); + gmc_v10_0_flush_gpu_tlb(adev, 0, AMDGPU_GFXHUB_0, 0); DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n", (unsigned)(adev->gmc.gart_size >> 20), |