drm/amdgpu/virt: use kiq to access registers (v2)
For virtualization, it is must for driver to use KIQ to access
registers when it is out of GPU full access mode.
v2: agd: rebase
Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Monk Liu <Monk.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
index 8bb9e5d..433f559 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
@@ -36,6 +36,7 @@ struct amdgpu_virt {
struct amdgpu_bo *csa_obj;
uint64_t csa_vmid0_addr;
uint32_t reg_val_offs;
+ struct mutex lock;
};
#define AMDGPU_CSA_SIZE (8 * 1024)
@@ -68,5 +69,8 @@ static inline bool is_virtual_machine(void)
struct amdgpu_vm;
int amdgpu_allocate_static_csa(struct amdgpu_device *adev);
int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm);
+void amdgpu_virt_init_setting(struct amdgpu_device *adev);
+uint32_t amdgpu_virt_kiq_rreg(struct amdgpu_device *adev, uint32_t reg);
+void amdgpu_virt_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v);
#endif