From f44ffd677fb3562ac0a1ff9c8ae52672be741f00 Mon Sep 17 00:00:00 2001 From: Christian König Date: Fri, 23 Mar 2018 16:56:37 +0100 Subject: drm/amdgpu: add support for exporting VRAM using DMA-buf v3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We should be able to do this now after checking all the prerequisites. v2: fix entrie count in the sgt v3: manually construct the sg Signed-off-by: Christian König Acked-by: Daniel Vetter Acked-by: Sumit Semwal Link: https://patchwork.freedesktop.org/patch/359295 --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h index bd05bbb4878d..6b22dc41ef13 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h @@ -24,8 +24,9 @@ #ifndef __AMDGPU_TTM_H__ #define __AMDGPU_TTM_H__ -#include "amdgpu.h" +#include #include +#include "amdgpu.h" #define AMDGPU_PL_GDS (TTM_PL_PRIV + 0) #define AMDGPU_PL_GWS (TTM_PL_PRIV + 1) @@ -74,6 +75,15 @@ uint64_t amdgpu_gtt_mgr_usage(struct ttm_mem_type_manager *man); int amdgpu_gtt_mgr_recover(struct ttm_mem_type_manager *man); u64 amdgpu_vram_mgr_bo_visible_size(struct amdgpu_bo *bo); +int amdgpu_vram_mgr_alloc_sgt(struct amdgpu_device *adev, + struct ttm_mem_reg *mem, + struct device *dev, + enum dma_data_direction dir, + struct sg_table **sgt); +void amdgpu_vram_mgr_free_sgt(struct amdgpu_device *adev, + struct device *dev, + enum dma_data_direction dir, + struct sg_table *sgt); uint64_t amdgpu_vram_mgr_usage(struct ttm_mem_type_manager *man); uint64_t amdgpu_vram_mgr_vis_usage(struct ttm_mem_type_manager *man); -- cgit