[PATCH] drm/amdgpu: force to use CPU_ACCESS hint optimization

Chunming Zhou david1.zhou at amd.com
Wed Mar 6 11:52:50 UTC 2019


As we know, visible vram can be placed to invisible when no cpu access.

Signed-off-by: Chunming Zhou <david1.zhou at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index bc62bf41b7e9..823deb66f5da 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -592,8 +592,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
 
 		vram_gtt.vram_size = adev->gmc.real_vram_size -
 			atomic64_read(&adev->vram_pin_size);
-		vram_gtt.vram_cpu_accessible_size = adev->gmc.visible_vram_size -
-			atomic64_read(&adev->visible_pin_size);
+		vram_gtt.vram_cpu_accessible_size = vram_gtt.vram_size;
 		vram_gtt.gtt_size = adev->mman.bdev.man[TTM_PL_TT].size;
 		vram_gtt.gtt_size *= PAGE_SIZE;
 		vram_gtt.gtt_size -= atomic64_read(&adev->gart_pin_size);
@@ -612,9 +611,8 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
 		mem.vram.max_allocation = mem.vram.usable_heap_size * 3 / 4;
 
 		mem.cpu_accessible_vram.total_heap_size =
-			adev->gmc.visible_vram_size;
-		mem.cpu_accessible_vram.usable_heap_size = adev->gmc.visible_vram_size -
-			atomic64_read(&adev->visible_pin_size);
+			mem.vram.total_heap_size;
+		mem.cpu_accessible_vram.usable_heap_size = mem.vram.usable_heap_size;
 		mem.cpu_accessible_vram.heap_usage =
 			amdgpu_vram_mgr_vis_usage(&adev->mman.bdev.man[TTM_PL_VRAM]);
 		mem.cpu_accessible_vram.max_allocation =
-- 
2.17.1



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