drm/amdgpu: increase gtt size to 3GB by default v2
v2: address Alex's comment, add AMDGPU_DEFAULT_GTT_SIZE_MB.
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index c4f6211..a4fc54c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -110,6 +110,7 @@ extern int amdgpu_pos_buf_per_se;
extern int amdgpu_cntl_sb_buf_per_se;
extern int amdgpu_param_buf_per_se;
+#define AMDGPU_DEFAULT_GTT_SIZE_MB 3072ULL /* 3GB by default */
#define AMDGPU_WAIT_IDLE_TIMEOUT_IN_MS 3000
#define AMDGPU_MAX_USEC_TIMEOUT 100000 /* 100 ms */
#define AMDGPU_FENCE_JIFFIES_TIMEOUT (HZ / 2)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
index 31c50b2..a572979 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
@@ -346,7 +346,8 @@ static int gmc_v6_0_mc_init(struct amdgpu_device *adev)
* size equal to the 1024 or vram, whichever is larger.
*/
if (amdgpu_gart_size == -1)
- adev->mc.gtt_size = max((1024ULL << 20), adev->mc.mc_vram_size);
+ adev->mc.gtt_size = max((AMDGPU_DEFAULT_GTT_SIZE_MB << 20),
+ adev->mc.mc_vram_size);
else
adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20;
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
index 2217d4d..a9083a1 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
@@ -395,7 +395,8 @@ static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
* size equal to the 1024 or vram, whichever is larger.
*/
if (amdgpu_gart_size == -1)
- adev->mc.gtt_size = max((1024ULL << 20), adev->mc.mc_vram_size);
+ adev->mc.gtt_size = max((AMDGPU_DEFAULT_GTT_SIZE_MB << 20),
+ adev->mc.mc_vram_size);
else
adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20;
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index e4f5df3..4ac9978 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -557,7 +557,8 @@ static int gmc_v8_0_mc_init(struct amdgpu_device *adev)
* size equal to the 1024 or vram, whichever is larger.
*/
if (amdgpu_gart_size == -1)
- adev->mc.gtt_size = max((1024ULL << 20), adev->mc.mc_vram_size);
+ adev->mc.gtt_size = max((AMDGPU_DEFAULT_GTT_SIZE_MB << 20),
+ adev->mc.mc_vram_size);
else
adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20;
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index edf4376..e5d4dfe 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -486,7 +486,8 @@ static int gmc_v9_0_mc_init(struct amdgpu_device *adev)
* size equal to the 1024 or vram, whichever is larger.
*/
if (amdgpu_gart_size == -1)
- adev->mc.gtt_size = max((1024ULL << 20), adev->mc.mc_vram_size);
+ adev->mc.gtt_size = max((AMDGPU_DEFAULT_GTT_SIZE_MB << 20),
+ adev->mc.mc_vram_size);
else
adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20;