[PATCH 2/2] drm/amdgpu: keep the stolen memory in visible vram region

[Tianci Yin]

From: "Tianci.Yin" <tianci.yin at amd.com>

stolen memory should be fixed in visible region.

Change-Id: Icbbbd39fd113e93423aad8d2555f4073c08020e5
Signed-off-by: Tianci.Yin <tianci.yin at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 6 ++++--
 drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c   | 3 ++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 801f912..dcd32d0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1733,6 +1733,7 @@ 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);
 
@@ -1787,7 +1788,7 @@ 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",
@@ -1851,8 +1852,9 @@ 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);
 }
 
 /**
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index f77138b..ab43ae2 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1248,6 +1248,7 @@ static int gmc_v9_0_sw_init(void *handle)
 static int gmc_v9_0_sw_fini(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	void *stolen_vga_buf;
 
 	if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__UMC) &&
 			adev->gmc.umc_ras_if) {
@@ -1280,7 +1281,7 @@ static int gmc_v9_0_sw_fini(void *handle)
 	amdgpu_vm_manager_fini(adev);
 
 	if (gmc_v9_0_keep_stolen_memory(adev))
-		amdgpu_bo_free_kernel(&adev->stolen_vga_memory, NULL, NULL);
+		amdgpu_bo_free_kernel(&adev->stolen_vga_memory, NULL, &stolen_vga_buf);
 
 	amdgpu_gart_table_vram_free(adev);
 	amdgpu_bo_fini(adev);
-- 
2.7.4