[Public]
Thanks for the clarification. The patch is:
Reviewed-by: Guchun Chen <guchun.chen@xxxxxxx>
Regards,
Guchun
-----Original Message-----
From: Christian König <ckoenig.leichtzumerken@xxxxxxxxx>
Sent: Tuesday, January 18, 2022 10:10 PM
To: Chen, Guchun <Guchun.Chen@xxxxxxx>; Kim, Jonathan <Jonathan.Kim@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Subject: Re: [PATCH] drm/amdgpu: remove gart.ready flag
Am 18.01.22 um 14:28 schrieb Chen, Guchun:
> [Public]
>
> - if (amdgpu_sriov_vf(adev) && amdgpu_in_reset(adev))
> - goto skip_pin_bo;
> -
> - r = amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
> - if (r)
> - return r;
> -
> -skip_pin_bo:
>
> Does deleting skip_pin_bo path cause bo redundant pin in SRIOV case?
Pinning/unpinning the BO was already removed as well.
See Nirmoy's patches in the git log.
Regards,
Christian.
>
> Regards,
> Guchun
>
> -----Original Message-----
> From: Christian König <ckoenig.leichtzumerken@xxxxxxxxx>
> Sent: Tuesday, January 18, 2022 8:02 PM
> To: Chen, Guchun <Guchun.Chen@xxxxxxx>; Kim, Jonathan
> <Jonathan.Kim@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> Subject: [PATCH] drm/amdgpu: remove gart.ready flag
>
> That's just a leftover from old radeon days and was preventing CS and GART bindings before the hardware was initialized. But nowdays that is perfectly valid.
>
> The only thing we need to warn about are GART binding before the table is even allocated.
>
> Signed-off-by: Christian König <christian.koenig@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c | 35 +++-------
> drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h | 15 ++--
> drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | 9 +--
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 77 ++++++---------------
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 4 +-
> drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 11 +--
> drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 7 +-
> drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | 8 +--
> drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 8 +--
> drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 10 +--
> drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 5 +-
> 11 files changed, 52 insertions(+), 137 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
> index 645950a653a0..53cc844346f0 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
> @@ -150,7 +150,7 @@ void amdgpu_gart_table_vram_free(struct amdgpu_device *adev)
> * replaces them with the dummy page (all asics).
> * Returns 0 for success, -EINVAL for failure.
> */
> -int amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
> +void amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
> int pages)
> {
> unsigned t;
> @@ -161,13 +161,11 @@ int amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
> uint64_t flags = 0;
> int idx;
>
> - if (!adev->gart.ready) {
> - WARN(1, "trying to unbind memory from uninitialized GART !\n");
> - return -EINVAL;
> - }
> + if (WARN_ON(!adev->gart.ptr))
> + return;
>
> if (!drm_dev_enter(adev_to_drm(adev), &idx))
> - return 0;
> + return;
>
> t = offset / AMDGPU_GPU_PAGE_SIZE;
> p = t / AMDGPU_GPU_PAGES_IN_CPU_PAGE; @@ -188,7 +186,6 @@ int
> amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
> amdgpu_gmc_flush_gpu_tlb(adev, 0, i, 0);
>
> drm_dev_exit(idx);
> - return 0;
> }
>
> /**
> @@ -204,7 +201,7 @@ int amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
> * Map the dma_addresses into GART entries (all asics).
> * Returns 0 for success, -EINVAL for failure.
> */
> -int amdgpu_gart_map(struct amdgpu_device *adev, uint64_t offset,
> +void amdgpu_gart_map(struct amdgpu_device *adev, uint64_t offset,
> int pages, dma_addr_t *dma_addr, uint64_t flags,
> void *dst)
> {
> @@ -212,13 +209,8 @@ int amdgpu_gart_map(struct amdgpu_device *adev, uint64_t offset,
> unsigned i, j, t;
> int idx;
>
> - if (!adev->gart.ready) {
> - WARN(1, "trying to bind memory to uninitialized GART !\n");
> - return -EINVAL;
> - }
> -
> if (!drm_dev_enter(adev_to_drm(adev), &idx))
> - return 0;
> + return;
>
> t = offset / AMDGPU_GPU_PAGE_SIZE;
>
> @@ -230,7 +222,6 @@ int amdgpu_gart_map(struct amdgpu_device *adev, uint64_t offset,
> }
> }
> drm_dev_exit(idx);
> - return 0;
> }
>
> /**
> @@ -246,20 +237,14 @@ int amdgpu_gart_map(struct amdgpu_device *adev, uint64_t offset,
> * (all asics).
> * Returns 0 for success, -EINVAL for failure.
> */
> -int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset,
> +void amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset,
> int pages, dma_addr_t *dma_addr,
> uint64_t flags)
> {
> - if (!adev->gart.ready) {
> - WARN(1, "trying to bind memory to uninitialized GART !\n");
> - return -EINVAL;
> - }
> -
> - if (!adev->gart.ptr)
> - return 0;
> + if (WARN_ON(!adev->gart.ptr))
> + return;
>
> - return amdgpu_gart_map(adev, offset, pages, dma_addr, flags,
> - adev->gart.ptr);
> + amdgpu_gart_map(adev, offset, pages, dma_addr, flags,
> +adev->gart.ptr);
> }
>
> /**
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h
> index 78895413cf9f..8fea3e04e411 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h
> @@ -46,7 +46,6 @@ struct amdgpu_gart {
> unsigned num_gpu_pages;
> unsigned num_cpu_pages;
> unsigned table_size;
> - bool ready;
>
> /* Asic default pte flags */
> uint64_t gart_pte_flags;
> @@ -58,12 +57,12 @@ int amdgpu_gart_table_vram_pin(struct amdgpu_device *adev); void amdgpu_gart_table_vram_unpin(struct amdgpu_device *adev); int amdgpu_gart_init(struct amdgpu_device *adev); void amdgpu_gart_dummy_page_fini(struct amdgpu_device *adev); -int amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
> - int pages);
> -int amdgpu_gart_map(struct amdgpu_device *adev, uint64_t offset,
> - int pages, dma_addr_t *dma_addr, uint64_t flags,
> - void *dst);
> -int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset,
> - int pages, dma_addr_t *dma_addr, uint64_t flags);
> +void amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
> + int pages);
> +void amdgpu_gart_map(struct amdgpu_device *adev, uint64_t offset,
> + int pages, dma_addr_t *dma_addr, uint64_t flags,
> + void *dst);
> +void amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset,
> + int pages, dma_addr_t *dma_addr, uint64_t flags);
> void amdgpu_gart_invalidate_tlb(struct amdgpu_device *adev); #endif
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
> index 9151950e0cc3..babdd915c4c3 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
> @@ -224,26 +224,21 @@ uint64_t amdgpu_gtt_mgr_usage(struct amdgpu_gtt_mgr *mgr)
> *
> * Re-init the gart for each known BO in the GTT.
> */
> -int amdgpu_gtt_mgr_recover(struct amdgpu_gtt_mgr *mgr)
> +void amdgpu_gtt_mgr_recover(struct amdgpu_gtt_mgr *mgr)
> {
> struct amdgpu_gtt_node *node;
> struct drm_mm_node *mm_node;
> struct amdgpu_device *adev;
> - int r = 0;
>
> adev = container_of(mgr, typeof(*adev), mman.gtt_mgr);
> spin_lock(&mgr->lock);
> drm_mm_for_each_node(mm_node, &mgr->mm) {
> node = container_of(mm_node, typeof(*node), base.mm_nodes[0]);
> - r = amdgpu_ttm_recover_gart(node->tbo);
> - if (r)
> - break;
> + amdgpu_ttm_recover_gart(node->tbo);
> }
> spin_unlock(&mgr->lock);
>
> amdgpu_gart_invalidate_tlb(adev);
> -
> - return r;
> }
>
> /**
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> index b489cd8abe31..9cdb61ec669e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> @@ -246,10 +246,7 @@ static int amdgpu_ttm_map_buffer(struct ttm_buffer_object *bo,
> dma_addr_t *dma_addr;
>
> dma_addr = &bo->ttm->dma_address[mm_cur->start >> PAGE_SHIFT];
> - r = amdgpu_gart_map(adev, 0, num_pages, dma_addr, flags,
> - cpu_addr);
> - if (r)
> - goto error_free;
> + amdgpu_gart_map(adev, 0, num_pages, dma_addr, flags, cpu_addr);
> } else {
> dma_addr_t dma_address;
>
> @@ -257,11 +254,8 @@ static int amdgpu_ttm_map_buffer(struct ttm_buffer_object *bo,
> dma_address += adev->vm_manager.vram_base_offset;
>
> for (i = 0; i < num_pages; ++i) {
> - r = amdgpu_gart_map(adev, i << PAGE_SHIFT, 1,
> - &dma_address, flags, cpu_addr);
> - if (r)
> - goto error_free;
> -
> + amdgpu_gart_map(adev, i << PAGE_SHIFT, 1, &dma_address,
> + flags, cpu_addr);
> dma_address += PAGE_SIZE;
> }
> }
> @@ -826,14 +820,13 @@ static void amdgpu_ttm_tt_unpin_userptr(struct
> ttm_device *bdev, #endif }
>
> -static int amdgpu_ttm_gart_bind(struct amdgpu_device *adev,
> - struct ttm_buffer_object *tbo,
> - uint64_t flags)
> +static void amdgpu_ttm_gart_bind(struct amdgpu_device *adev,
> + struct ttm_buffer_object *tbo,
> + uint64_t flags)
> {
> struct amdgpu_bo *abo = ttm_to_amdgpu_bo(tbo);
> struct ttm_tt *ttm = tbo->ttm;
> struct amdgpu_ttm_tt *gtt = (void *)ttm;
> - int r;
>
> if (amdgpu_bo_encrypted(abo))
> flags |= AMDGPU_PTE_TMZ;
> @@ -841,10 +834,8 @@ static int amdgpu_ttm_gart_bind(struct amdgpu_device *adev,
> if (abo->flags & AMDGPU_GEM_CREATE_CP_MQD_GFX9) {
> uint64_t page_idx = 1;
>
> - r = amdgpu_gart_bind(adev, gtt->offset, page_idx,
> - gtt->ttm.dma_address, flags);
> - if (r)
> - goto gart_bind_fail;
> + amdgpu_gart_bind(adev, gtt->offset, page_idx,
> + gtt->ttm.dma_address, flags);
>
> /* The memory type of the first page defaults to UC. Now
> * modify the memory type to NC from the second page of @@ -853,21 +844,13 @@ static int amdgpu_ttm_gart_bind(struct amdgpu_device *adev,
> flags &= ~AMDGPU_PTE_MTYPE_VG10_MASK;
> flags |= AMDGPU_PTE_MTYPE_VG10(AMDGPU_MTYPE_NC);
>
> - r = amdgpu_gart_bind(adev,
> - gtt->offset + (page_idx << PAGE_SHIFT),
> - ttm->num_pages - page_idx,
> - &(gtt->ttm.dma_address[page_idx]), flags);
> + amdgpu_gart_bind(adev, gtt->offset + (page_idx << PAGE_SHIFT),
> + ttm->num_pages - page_idx,
> + &(gtt->ttm.dma_address[page_idx]), flags);
> } else {
> - r = amdgpu_gart_bind(adev, gtt->offset, ttm->num_pages,
> - gtt->ttm.dma_address, flags);
> + amdgpu_gart_bind(adev, gtt->offset, ttm->num_pages,
> + gtt->ttm.dma_address, flags);
> }
> -
> -gart_bind_fail:
> - if (r)
> - DRM_ERROR("failed to bind %u pages at 0x%08llX\n",
> - ttm->num_pages, gtt->offset);
> -
> - return r;
> }
>
> /*
> @@ -883,7 +866,7 @@ static int amdgpu_ttm_backend_bind(struct ttm_device *bdev,
> struct amdgpu_device *adev = amdgpu_ttm_adev(bdev);
> struct amdgpu_ttm_tt *gtt = (void*)ttm;
> uint64_t flags;
> - int r = 0;
> + int r;
>
> if (!bo_mem)
> return -EINVAL;
> @@ -930,14 +913,10 @@ static int amdgpu_ttm_backend_bind(struct
> ttm_device *bdev,
>
> /* bind pages into GART page tables */
> gtt->offset = (u64)bo_mem->start << PAGE_SHIFT;
> - r = amdgpu_gart_bind(adev, gtt->offset, ttm->num_pages,
> - gtt->ttm.dma_address, flags);
> -
> - if (r)
> - DRM_ERROR("failed to bind %u pages at 0x%08llX\n",
> - ttm->num_pages, gtt->offset);
> + amdgpu_gart_bind(adev, gtt->offset, ttm->num_pages,
> + gtt->ttm.dma_address, flags);
> gtt->bound = true;
> - return r;
> + return 0;
> }
>
> /*
> @@ -987,12 +966,7 @@ int amdgpu_ttm_alloc_gart(struct
> ttm_buffer_object *bo)
>
> /* Bind pages */
> gtt->offset = (u64)tmp->start << PAGE_SHIFT;
> - r = amdgpu_ttm_gart_bind(adev, bo, flags);
> - if (unlikely(r)) {
> - ttm_resource_free(bo, &tmp);
> - return r;
> - }
> -
> + amdgpu_ttm_gart_bind(adev, bo, flags);
> amdgpu_gart_invalidate_tlb(adev);
> ttm_resource_free(bo, &bo->resource);
> ttm_bo_assign_mem(bo, tmp);
> @@ -1006,19 +980,16 @@ int amdgpu_ttm_alloc_gart(struct ttm_buffer_object *bo)
> * Called by amdgpu_gtt_mgr_recover() from amdgpu_device_reset() to
> * rebind GTT pages during a GPU reset.
> */
> -int amdgpu_ttm_recover_gart(struct ttm_buffer_object *tbo)
> +void amdgpu_ttm_recover_gart(struct ttm_buffer_object *tbo)
> {
> struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev);
> uint64_t flags;
> - int r;
>
> if (!tbo->ttm)
> - return 0;
> + return;
>
> flags = amdgpu_ttm_tt_pte_flags(adev, tbo->ttm, tbo->resource);
> - r = amdgpu_ttm_gart_bind(adev, tbo, flags);
> -
> - return r;
> + amdgpu_ttm_gart_bind(adev, tbo, flags);
> }
>
> /*
> @@ -1032,7 +1003,6 @@ static void amdgpu_ttm_backend_unbind(struct ttm_device *bdev, {
> struct amdgpu_device *adev = amdgpu_ttm_adev(bdev);
> struct amdgpu_ttm_tt *gtt = (void *)ttm;
> - int r;
>
> /* if the pages have userptr pinning then clear that first */
> if (gtt->userptr) {
> @@ -1052,10 +1022,7 @@ static void amdgpu_ttm_backend_unbind(struct ttm_device *bdev,
> return;
>
> /* unbind shouldn't be done for GDS/GWS/OA in ttm_bo_clean_mm */
> - r = amdgpu_gart_unbind(adev, gtt->offset, ttm->num_pages);
> - if (r)
> - DRM_ERROR("failed to unbind %u pages at 0x%08llX\n",
> - gtt->ttm.num_pages, gtt->offset);
> + amdgpu_gart_unbind(adev, gtt->offset, ttm->num_pages);
> gtt->bound = false;
> }
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
> index 084aa49e627d..d9691f262f16 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
> @@ -119,7 +119,7 @@ void amdgpu_vram_mgr_fini(struct amdgpu_device
> *adev);
>
> bool amdgpu_gtt_mgr_has_gart_addr(struct ttm_resource *mem);
> uint64_t amdgpu_gtt_mgr_usage(struct amdgpu_gtt_mgr *mgr); -int
> amdgpu_gtt_mgr_recover(struct amdgpu_gtt_mgr *mgr);
> +void amdgpu_gtt_mgr_recover(struct amdgpu_gtt_mgr *mgr);
>
> uint64_t amdgpu_preempt_mgr_usage(struct ttm_resource_manager *man);
>
> @@ -162,7 +162,7 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo,
> struct dma_fence **fence);
>
> int amdgpu_ttm_alloc_gart(struct ttm_buffer_object *bo); -int
> amdgpu_ttm_recover_gart(struct ttm_buffer_object *tbo);
> +void amdgpu_ttm_recover_gart(struct ttm_buffer_object *tbo);
> uint64_t amdgpu_ttm_domain_start(struct amdgpu_device *adev,
> uint32_t type);
>
> #if IS_ENABLED(CONFIG_DRM_AMDGPU_USERPTR)
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> index 4f8d356f8432..867c94a1a81a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> @@ -1000,14 +1000,7 @@ static int gmc_v10_0_gart_enable(struct amdgpu_device *adev)
> return -EINVAL;
> }
>
> - if (amdgpu_sriov_vf(adev) && amdgpu_in_reset(adev))
> - goto skip_pin_bo;
> -
> - r = amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
> - if (r)
> - return r;
> -
> -skip_pin_bo:
> + amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
> r = adev->gfxhub.funcs->gart_enable(adev);
> if (r)
> return r;
> @@ -1033,8 +1026,6 @@ static int gmc_v10_0_gart_enable(struct amdgpu_device *adev)
> (unsigned)(adev->gmc.gart_size >> 20),
> (unsigned long long)amdgpu_bo_gpu_offset(adev->gart.bo));
>
> - adev->gart.ready = true;
> -
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> index cd6c38e083d0..3baece11d74e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> @@ -469,16 +469,14 @@ static void gmc_v6_0_set_prt(struct amdgpu_device *adev, bool enable) static int gmc_v6_0_gart_enable(struct amdgpu_device *adev) {
> uint64_t table_addr;
> - int r, i;
> u32 field;
> + int i;
>
> if (adev->gart.bo == NULL) {
> dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
> return -EINVAL;
> }
> - r = amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
> - if (r)
> - return r;
> + amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
>
> table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
>
> @@ -558,7 +556,6 @@ static int gmc_v6_0_gart_enable(struct amdgpu_device *adev)
> dev_info(adev->dev, "PCIE GART of %uM enabled (table at 0x%016llX).\n",
> (unsigned)(adev->gmc.gart_size >> 20),
> (unsigned long long)table_addr);
> - adev->gart.ready = true;
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
> b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
> index ab8adbff9e2d..cf83f8c258f4 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
> @@ -613,17 +613,14 @@ static void gmc_v7_0_set_prt(struct amdgpu_device *adev, bool enable) static int gmc_v7_0_gart_enable(struct amdgpu_device *adev) {
> uint64_t table_addr;
> - int r, i;
> u32 tmp, field;
> + int i;
>
> if (adev->gart.bo == NULL) {
> dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
> return -EINVAL;
> }
> - r = amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
> - if (r)
> - return r;
> -
> + amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
> table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
>
> /* Setup TLB control */
> @@ -712,7 +709,6 @@ static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
> DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
> (unsigned)(adev->gmc.gart_size >> 20),
> (unsigned long long)table_addr);
> - adev->gart.ready = true;
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
> b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
> index 054733838292..7cc7c8001734 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
> @@ -837,17 +837,14 @@ static void gmc_v8_0_set_prt(struct amdgpu_device *adev, bool enable) static int gmc_v8_0_gart_enable(struct amdgpu_device *adev) {
> uint64_t table_addr;
> - int r, i;
> u32 tmp, field;
> + int i;
>
> if (adev->gart.bo == NULL) {
> dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
> return -EINVAL;
> }
> - r = amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
> - if (r)
> - return r;
> -
> + amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
> table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
>
> /* Setup TLB control */
> @@ -953,7 +950,6 @@ static int gmc_v8_0_gart_enable(struct amdgpu_device *adev)
> DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
> (unsigned)(adev->gmc.gart_size >> 20),
> (unsigned long long)table_addr);
> - adev->gart.ready = true;
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index c76ffd1a70cd..9f71f810c2f8 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -1783,14 +1783,7 @@ static int gmc_v9_0_gart_enable(struct amdgpu_device *adev)
> return -EINVAL;
> }
>
> - if (amdgpu_sriov_vf(adev) && amdgpu_in_reset(adev))
> - goto skip_pin_bo;
> -
> - r = amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
> - if (r)
> - return r;
> -
> -skip_pin_bo:
> + amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
> r = adev->gfxhub.funcs->gart_enable(adev);
> if (r)
> return r;
> @@ -1807,7 +1800,6 @@ static int gmc_v9_0_gart_enable(struct amdgpu_device *adev)
> DRM_INFO("PTB located at 0x%016llX\n",
> (unsigned long long)amdgpu_bo_gpu_offset(adev->gart.bo));
>
> - adev->gart.ready = true;
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
> b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
> index d5d2cf2ee788..88db82b3d443 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
> @@ -86,10 +86,7 @@ svm_migrate_gart_map(struct amdgpu_ring *ring,
> uint64_t npages,
>
> cpu_addr = &job->ibs[0].ptr[num_dw];
>
> - r = amdgpu_gart_map(adev, 0, npages, addr, pte_flags, cpu_addr);
> - if (r)
> - goto error_free;
> -
> + amdgpu_gart_map(adev, 0, npages, addr, pte_flags, cpu_addr);
> r = amdgpu_job_submit(job, &adev->mman.entity,
> AMDGPU_FENCE_OWNER_UNDEFINED, &fence);
> if (r)
> --
> 2.25.1
