diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 37 |
1 files changed, 12 insertions, 25 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index b44b07100564..dff41d0a85fe 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -794,7 +794,6 @@ int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, struct page **pages) struct hmm_range *range; unsigned long i; uint64_t *pfns; - int retry = 0; int r = 0; if (!mm) /* Happens during process shutdown */ @@ -835,10 +834,11 @@ int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, struct page **pages) 0 : range->flags[HMM_PFN_WRITE]; range->pfn_flags_mask = 0; range->pfns = pfns; - hmm_range_register(range, mirror, start, - start + ttm->num_pages * PAGE_SIZE, PAGE_SHIFT); + range->start = start; + range->end = start + ttm->num_pages * PAGE_SIZE; + + hmm_range_register(range, mirror); -retry: /* * Just wait for range to be valid, safe to ignore return value as we * will use the return value of hmm_range_fault() below under the @@ -847,24 +847,12 @@ retry: hmm_range_wait_until_valid(range, HMM_RANGE_DEFAULT_TIMEOUT); down_read(&mm->mmap_sem); - - r = hmm_range_fault(range, true); - if (unlikely(r < 0)) { - if (likely(r == -EAGAIN)) { - /* - * return -EAGAIN, mmap_sem is dropped - */ - if (retry++ < MAX_RETRY_HMM_RANGE_FAULT) - goto retry; - else - pr_err("Retry hmm fault too many times\n"); - } - - goto out_up_read; - } - + r = hmm_range_fault(range, 0); up_read(&mm->mmap_sem); + if (unlikely(r < 0)) + goto out_free_pfns; + for (i = 0; i < ttm->num_pages; i++) { pages[i] = hmm_device_entry_to_page(range, pfns[i]); if (unlikely(!pages[i])) { @@ -880,9 +868,6 @@ retry: return 0; -out_up_read: - if (likely(r != -EAGAIN)) - up_read(&mm->mmap_sem); out_free_pfns: hmm_range_unregister(range); kvfree(pfns); @@ -1738,6 +1723,7 @@ int amdgpu_ttm_init(struct amdgpu_device *adev) uint64_t gtt_size; int r; u64 vis_vram_limit; + void *stolen_vga_buf; mutex_init(&adev->mman.gtt_window_lock); @@ -1792,7 +1778,7 @@ int amdgpu_ttm_init(struct amdgpu_device *adev) r = amdgpu_bo_create_kernel(adev, adev->gmc.stolen_size, PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM, &adev->stolen_vga_memory, - NULL, NULL); + NULL, &stolen_vga_buf); if (r) return r; DRM_INFO("amdgpu: %uM of VRAM memory ready\n", @@ -1856,8 +1842,9 @@ int amdgpu_ttm_init(struct amdgpu_device *adev) */ void amdgpu_ttm_late_init(struct amdgpu_device *adev) { + void *stolen_vga_buf; /* return the VGA stolen memory (if any) back to VRAM */ - amdgpu_bo_free_kernel(&adev->stolen_vga_memory, NULL, NULL); + amdgpu_bo_free_kernel(&adev->stolen_vga_memory, NULL, &stolen_vga_buf); } /** |