diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c index 6c30eceec896..f91cc149d06c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c @@ -31,6 +31,8 @@ #include "amdgpu_atomfirmware.h" #include "atom.h" +#define AMDGPU_MAX_SG_SEGMENT_SIZE (2UL << 30) + struct amdgpu_vram_reservation { u64 start; u64 size; @@ -518,9 +520,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man, else min_block_size = mgr->default_page_size; - /* Limit maximum size to 2GiB due to SG table limitations */ - size = min(remaining_size, 2ULL << 30); - + size = remaining_size; if ((size >= (u64)pages_per_block << PAGE_SHIFT) && !(size & (((u64)pages_per_block << PAGE_SHIFT) - 1))) min_block_size = (u64)pages_per_block << PAGE_SHIFT; @@ -660,7 +660,7 @@ int amdgpu_vram_mgr_alloc_sgt(struct amdgpu_device *adev, amdgpu_res_first(res, offset, length, &cursor); while (cursor.remaining) { num_entries++; - amdgpu_res_next(&cursor, cursor.size); + amdgpu_res_next(&cursor, min(cursor.size, AMDGPU_MAX_SG_SEGMENT_SIZE)); } r = sg_alloc_table(*sgt, num_entries, GFP_KERNEL); @@ -680,7 +680,7 @@ int amdgpu_vram_mgr_alloc_sgt(struct amdgpu_device *adev, amdgpu_res_first(res, offset, length, &cursor); for_each_sgtable_sg((*sgt), sg, i) { phys_addr_t phys = cursor.start + adev->gmc.aper_base; - size_t size = cursor.size; + unsigned long size = min(cursor.size, AMDGPU_MAX_SG_SEGMENT_SIZE); dma_addr_t addr; addr = dma_map_resource(dev, phys, size, dir, @@ -693,7 +693,7 @@ int amdgpu_vram_mgr_alloc_sgt(struct amdgpu_device *adev, sg_dma_address(sg) = addr; sg_dma_len(sg) = size; - amdgpu_res_next(&cursor, cursor.size); + amdgpu_res_next(&cursor, size); } return 0; |