diff options
| author | Chunming Zhou <David1.Zhou@amd.com> | 2017-03-27 11:43:35 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-03-29 23:55:29 -0400 |
| commit | f7effef8d6e38d7d3120c604ad7d0b299b349e14 (patch) | |
| tree | a654e1d5e5364e956a90aeae831fa8050056e055 /drivers/gpu/drm/amd | |
| parent | a1adf8bef2f3c635dca372d36737c70e6d32bc95 (diff) | |
drm/amdgpu: limit block size to one page
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 4bf9805b7028..abb51bd77ca7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1042,6 +1042,14 @@ static bool amdgpu_check_pot_argument(int arg) static void amdgpu_get_block_size(struct amdgpu_device *adev) { + /* from AI, asic starts to support multiple level VMPT */ + if (adev->family >= AMDGPU_FAMILY_AI) { + if (amdgpu_vm_block_size != 9) + dev_warn(adev->dev, "Multi-VMPT limits block size to" + "one page!\n"); + amdgpu_vm_block_size = 9; + return; + } /* defines number of bits in page table versus page directory, * a page is 4KB so we have 12 bits offset, minimum 9 bits in the * page table and the remaining bits are in the page directory */ |