diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 48c58ae4bb3a..7873dfa8c0f9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -25,6 +25,7 @@ #define __AMDGPU_VM_H__ #include <linux/rbtree.h> +#include <linux/idr.h> #include "gpu_scheduler.h" #include "amdgpu_sync.h" @@ -148,8 +149,9 @@ struct amdgpu_vm { /* Scheduler entity for page table updates */ struct amd_sched_entity entity; - /* client id */ + /* client id and PASID (TODO: replace client_id with PASID) */ u64 client_id; + unsigned int pasid; /* dedicated to vm */ struct amdgpu_vm_id *reserved_vmid[AMDGPU_MAX_VMHUBS]; @@ -220,12 +222,20 @@ struct amdgpu_vm_manager { * BIT1[= 0] Compute updated by SDMA [= 1] by CPU */ int vm_update_mode; + + /* PASID to VM mapping, will be used in interrupt context to + * look up VM of a page fault + */ + struct idr pasid_idr; + spinlock_t pasid_lock; }; +int amdgpu_vm_alloc_pasid(unsigned int bits); +void amdgpu_vm_free_pasid(unsigned int pasid); void amdgpu_vm_manager_init(struct amdgpu_device *adev); void amdgpu_vm_manager_fini(struct amdgpu_device *adev); int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm, - int vm_context); + int vm_context, unsigned int pasid); void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm); void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm, struct list_head *validated, |