diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 40 |
1 files changed, 37 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c index 1b865fed74ca..a0ea663ecdbc 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c @@ -244,11 +244,14 @@ int amdgpu_amdkfd_alloc_gtt_mem(struct kgd_dev *kgd, size_t size, if (cp_mqd_gfx9) bp.flags |= AMDGPU_GEM_CREATE_CP_MQD_GFX9; + if (!down_read_trylock(&adev->reset_sem)) + return -EIO; + r = amdgpu_bo_create(adev, &bp, &bo); if (r) { dev_err(adev->dev, "failed to allocate BO for amdkfd (%d)\n", r); - return r; + goto err; } /* map the buffer */ @@ -283,6 +286,7 @@ int amdgpu_amdkfd_alloc_gtt_mem(struct kgd_dev *kgd, size_t size, amdgpu_bo_unreserve(bo); + up_read(&adev->reset_sem); return 0; allocate_mem_kmap_bo_failed: @@ -291,19 +295,25 @@ allocate_mem_pin_bo_failed: amdgpu_bo_unreserve(bo); allocate_mem_reserve_bo_failed: amdgpu_bo_unref(&bo); - +err: + up_read(&adev->reset_sem); return r; } void amdgpu_amdkfd_free_gtt_mem(struct kgd_dev *kgd, void *mem_obj) { + struct amdgpu_device *adev = (struct amdgpu_device *)kgd; struct amdgpu_bo *bo = (struct amdgpu_bo *) mem_obj; + down_read(&adev->reset_sem); + amdgpu_bo_reserve(bo, true); amdgpu_bo_kunmap(bo); amdgpu_bo_unpin(bo); amdgpu_bo_unreserve(bo); amdgpu_bo_unref(&(bo)); + + up_read(&adev->reset_sem); } int amdgpu_amdkfd_alloc_gws(struct kgd_dev *kgd, size_t size, @@ -335,9 +345,14 @@ int amdgpu_amdkfd_alloc_gws(struct kgd_dev *kgd, size_t size, void amdgpu_amdkfd_free_gws(struct kgd_dev *kgd, void *mem_obj) { + struct amdgpu_device *adev = (struct amdgpu_device *)kgd; struct amdgpu_bo *bo = (struct amdgpu_bo *)mem_obj; + down_read(&adev->reset_sem); + amdgpu_bo_unref(&bo); + + up_read(&adev->reset_sem); } uint32_t amdgpu_amdkfd_get_fw_version(struct kgd_dev *kgd, @@ -611,12 +626,19 @@ int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum kgd_engine_type engine, /* This works for NO_HWS. TODO: need to handle without knowing VMID */ job->vmid = vmid; + if (!down_read_trylock(&adev->reset_sem)) { + ret = -EIO; + goto err_ib_sched; + } + ret = amdgpu_ib_schedule(ring, 1, ib, job, &f); if (ret) { DRM_ERROR("amdgpu: failed to schedule IB.\n"); goto err_ib_sched; } + up_read(&adev->reset_sem); + ret = dma_fence_wait(f, false); err_ib_sched: @@ -647,6 +669,9 @@ int amdgpu_amdkfd_flush_gpu_tlb_vmid(struct kgd_dev *kgd, uint16_t vmid) { struct amdgpu_device *adev = (struct amdgpu_device *)kgd; + if (!down_read_trylock(&adev->reset_sem)) + return -EIO; + if (adev->family == AMDGPU_FAMILY_AI) { int i; @@ -656,6 +681,8 @@ int amdgpu_amdkfd_flush_gpu_tlb_vmid(struct kgd_dev *kgd, uint16_t vmid) amdgpu_gmc_flush_gpu_tlb(adev, vmid, AMDGPU_GFXHUB_0, 0); } + up_read(&adev->reset_sem); + return 0; } @@ -664,11 +691,18 @@ int amdgpu_amdkfd_flush_gpu_tlb_pasid(struct kgd_dev *kgd, uint16_t pasid) struct amdgpu_device *adev = (struct amdgpu_device *)kgd; const uint32_t flush_type = 0; bool all_hub = false; + int ret = -EIO; if (adev->family == AMDGPU_FAMILY_AI) all_hub = true; - return amdgpu_gmc_flush_gpu_tlb_pasid(adev, pasid, flush_type, all_hub); + if (down_read_trylock(&adev->reset_sem)) { + ret = amdgpu_gmc_flush_gpu_tlb_pasid(adev, + pasid, flush_type, all_hub); + up_read(&adev->reset_sem); + } + + return ret; } bool amdgpu_amdkfd_have_atomics_support(struct kgd_dev *kgd) |