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drm/amd/amdgpu: set gtt size according to system memory size only 

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Roger He 2017-11-29 17:12:03 +08:00 committed by Alex Deucher
parent cebb52b7bc
commit 5f97fc0e03
1 changed files with 3 additions and 5 deletions
drivers/gpu/drm/amd/amdgpu
amdgpu_ttm.c

8
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@ -1330,11 +1330,9 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
struct sysinfo si;
si_meminfo(&si);
gtt_size = min(max((AMDGPU_DEFAULT_GTT_SIZE_MB << 20),
adev->mc.mc_vram_size),
((uint64_t)si.totalram * si.mem_unit * 3/4));
}
else
gtt_size = max(AMDGPU_DEFAULT_GTT_SIZE_MB << 20,
(uint64_t)si.totalram * si.mem_unit * 3/4);
} else
gtt_size = (uint64_t)amdgpu_gtt_size << 20;
r = ttm_bo_init_mm(&adev->mman.bdev, TTM_PL_TT, gtt_size >> PAGE_SHIFT);
if (r) {