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drm/amdgpu/virt: use kiq to access registers (v2)

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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>
This commit is contained in:
Xiangliang Yu
2017-01-12 14:29:34 +08:00
committed by Alex Deucher
parent 5ec9f06e10
commit bc992ba5a3
4 changed files with 75 additions and 0 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
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@@ -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