diff options
| author | Christian König <christian.koenig@amd.com> | 2017-01-30 11:09:31 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-03-29 23:52:56 -0400 |
| commit | 284710fa6c3a5fddbc0f8c6b3a07861a312c18d2 (patch) | |
| tree | 8e0b7dd3c8485a308e6066e548f1548fd72feae5 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | |
| parent | a5f6b5b1e89067d3de30ae04693f96189cc05aec (diff) | |
drm/amdgpu: add basic PRT support (v2)
Future hardware generations can handle PRT flags on a per page basis,
but current hardware can only turn it on globally.
Add the basic handling for both, a global callback to enable/disable
triggered by setting a per mapping flag.
v2: agd: rebase fixes
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 18c72c0b478d..f90e1c8daf01 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -65,6 +65,8 @@ struct amdgpu_bo_list_entry; #define AMDGPU_PTE_FRAG(x) ((x & 0x1f) << 7) +#define AMDGPU_PTE_PRT (1UL << 63) + /* How to programm VM fault handling */ #define AMDGPU_VM_FAULT_STOP_NEVER 0 #define AMDGPU_VM_FAULT_STOP_FIRST 1 @@ -159,6 +161,10 @@ struct amdgpu_vm_manager { atomic_t vm_pte_next_ring; /* client id counter */ atomic64_t client_counter; + + /* partial resident texture handling */ + spinlock_t prt_lock; + atomic_t num_prt_mappings; }; void amdgpu_vm_manager_init(struct amdgpu_device *adev); |