[PATCH 21/21] drm/amdgpu: add PASID mapping for GFX v8

[Chunming Zhou]

and please fix patch #21 tile, which should be gfx9 not gfx8.


On 2018年01月17日 14:11, Chunming Zhou wrote:
> patch #19, #20, #21 are Reviewed-by: Chunming Zhou <david1.zhou at amd.com>
>
>
> On 2018年01月17日 03:40, Christian König wrote:
>> This way we can see the PASID in VM faults.
>>
>> Signed-off-by: Christian König <christian.koenig at amd.com>
>> ---
>>   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 12 +++++++++++-
>>   1 file changed, 11 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c 
>> b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>> index f7bcfa53eff0..2efbecf486c5 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>> @@ -33,6 +33,7 @@
>>   #include "vega10_enum.h"
>>   #include "mmhub/mmhub_1_0_offset.h"
>>   #include "athub/athub_1_0_offset.h"
>> +#include "oss/osssys_4_0_offset.h"
>>     #include "soc15.h"
>>   #include "soc15_common.h"
>> @@ -369,10 +370,12 @@ static uint64_t 
>> gmc_v9_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
>>                           unsigned vmid, unsigned pasid,
>>                           uint64_t pd_addr)
>>   {
>> -    struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
>> +    struct amdgpu_device *adev = ring->adev;
>> +    struct amdgpu_vmhub *hub = &adev->vmhub[ring->funcs->vmhub];
>>       uint32_t req = gmc_v9_0_get_invalidate_req(vmid);
>>       uint64_t flags = AMDGPU_PTE_VALID;
>>       unsigned eng = ring->vm_inv_eng;
>> +    uint32_t reg;
>>         amdgpu_gmc_get_vm_pde(ring->adev, -1, &pd_addr, &flags);
>>       pd_addr |= flags;
>> @@ -383,6 +386,13 @@ static uint64_t 
>> gmc_v9_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
>>       amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 + (2 * vmid),
>>                     upper_32_bits(pd_addr));
>>   +    if (ring->funcs->vmhub == AMDGPU_GFXHUB)
>> +        reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid;
>> +    else
>> +        reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT_MM) + vmid;
>> +
>> +    amdgpu_ring_emit_wreg(ring, reg, pasid);
>> +
>>       amdgpu_ring_emit_wreg(ring, hub->vm_inv_eng0_req + eng, req);
>>         return pd_addr;
>
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