[PATCH v3] drm/amdgpu: Set the default value about gds vmid0 size

[Christian König]

Am 12.10.2018 um 12:11 schrieb Zhang, Jerry(Junwei):
> On 10/12/2018 06:08 PM, Emily Deng wrote:
>> For sriov, when first run windows guest, then run linux guest, the gds
>> vmid0 size will be reset to 0 by windows guest. So if the value has been
>> reset to 0, then set the value to the default value in linux guest.
>>
>> v2:
>> Fixed value instead of reading mmGDS_VMID0_SIZE.
>>
>> Signed-off-by: Emily Deng <Emily.Deng at amd.com>
> Reviewed-by: Junwei Zhang <Jerry.Zhang at amd.com>

Reviewed-by: Christian König <christian.koenig at amd.com>

>> ---
>>   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 15 ++++++++++++++-
>>   1 file changed, 14 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c 
>> b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
>> index ae86238..a8acdd6 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
>> @@ -4875,7 +4875,20 @@ static void gfx_v9_0_set_rlc_funcs(struct 
>> amdgpu_device *adev)
>>   static void gfx_v9_0_set_gds_init(struct amdgpu_device *adev)
>>   {
>>       /* init asci gds info */
>> -    adev->gds.mem.total_size = RREG32_SOC15(GC, 0, mmGDS_VMID0_SIZE);
>> +    switch (adev->asic_type) {
>> +    case CHIP_VEGA10:
>> +    case CHIP_VEGA12:
>> +    case CHIP_VEGA20:
>> +        adev->gds.mem.total_size = 0x10000;
>> +        break;
>> +    case CHIP_RAVEN:
>> +        adev->gds.mem.total_size = 0x1000;
>> +        break;
>> +    default:
>> +        adev->gds.mem.total_size = 0x10000;
>> +        break;
>> +    }
>> +
>>       adev->gds.gws.total_size = 64;
>>       adev->gds.oa.total_size = 16;
>
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