[PATCH 2/2] drm/amdgpu: increase gtt size to 3GB by default

[Christian König]

Am 20.04.2017 um 14:43 schrieb Alex Deucher:
> On Wed, Apr 19, 2017 at 11:47 PM, Chunming Zhou <David1.Zhou at amd.com> wrote:
>> Change-Id: Icdf2486a2d1116e71dc8958cda679a4a83838489
>> Signed-off-by: Chunming Zhou <David1.Zhou at amd.com>
>> ---
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
>> index d74a406..8f201a3 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
>> @@ -65,7 +65,7 @@
>>   #define KMS_DRIVER_PATCHLEVEL  0
>>
>>   int amdgpu_vram_limit = 0;
>> -int amdgpu_gart_size = -1; /* auto */
>> +int amdgpu_gart_size = 3072; /* 3GB by default */
> This breaks the auto setting.  Please add a global define for gtt size
> (e.g., AMDGPU_DEFAULT_GTT_SIZE_MB) and switch the gmc modules to use
> that rather than the hardcoded 1024ULL.

I think this change isn't necessary any more.

Looks like I've found and fixed the root cause of the issue with 
"drm/amdgpu: fix amdgpu_ttm_bo_eviction_valuable".

Please test that patch if your test case now works without any 
additional changes.

Christian.

>
> Alex
>
>>   int amdgpu_moverate = -1; /* auto */
>>   int amdgpu_benchmarking = 0;
>>   int amdgpu_testing = 0;
>> --
>> 1.9.1
>>
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