diff options
| author | Xiaogang Chen <xiaogang.chen@amd.com> | 2025-01-13 17:35:59 -0600 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-02-12 21:02:55 -0500 |
| commit | 8544374c0f82edb285779f21b149826fe2c2977c (patch) | |
| tree | 3bbe31530395f9582da239f37354dca0c9acfe99 /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | |
| parent | ca449221078983a4b70a77187e0ddb7445a3fce0 (diff) | |
drm/amdkfd: Have kfd driver use same PASID values from graphic driver
Current kfd driver has its own PASID value for a kfd process and uses it to
locate vm at interrupt handler or mapping between kfd process and vm. That
design is not working when a physical gpu device has multiple spatial
partitions, ex: adev in CPX mode. This patch has kfd driver use same pasid
values that graphic driver generated which is per vm per pasid.
These pasid values are passed to fw/hardware. We do not need change interrupt
handler though more pasid values are used. Also, pasid values at log are
replaced by user process pid; pasid values are not exposed to user. Users see
their process pids that have meaning in user space.
Signed-off-by: Xiaogang Chen <xiaogang.chen@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c index 1e998f972c308..2b4d3840e5bca 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c @@ -1529,27 +1529,6 @@ static void amdgpu_amdkfd_gpuvm_unpin_bo(struct amdgpu_bo *bo) amdgpu_bo_unreserve(bo); } -int amdgpu_amdkfd_gpuvm_set_vm_pasid(struct amdgpu_device *adev, - struct amdgpu_vm *avm, u32 pasid) - -{ - int ret; - - /* Free the original amdgpu allocated pasid, - * will be replaced with kfd allocated pasid. - */ - if (avm->pasid) { - amdgpu_pasid_free(avm->pasid); - amdgpu_vm_set_pasid(adev, avm, 0); - } - - ret = amdgpu_vm_set_pasid(adev, avm, pasid); - if (ret) - return ret; - - return 0; -} - int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct amdgpu_device *adev, struct amdgpu_vm *avm, void **process_info, |