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drm/amdgpu: add helper to query rlcg reg access flag

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Query rlc indirect register access approach specified
by sriov host driver per ip blocks

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Zhou, Peng Ju <PengJu.Zhou@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hawking Zhang
2022-01-18 16:04:02 +08:00
committed by Alex Deucher
parent 5bb1465fbd
commit 29dbcac82f
2 changed files with 43 additions and 0 deletions
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8
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
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@@ -32,6 +32,12 @@
#define AMDGPU_PASSTHROUGH_MODE (1 << 3) /* thw whole GPU is pass through for VM */
#define AMDGPU_SRIOV_CAPS_RUNTIME (1 << 4) /* is out of full access mode */
/* flags for indirect register access path supported by rlcg for sriov */
#define AMDGPU_RLCG_GC_WRITE_LEGACY (0x8 << 28)
#define AMDGPU_RLCG_GC_WRITE (0x0 << 28)
#define AMDGPU_RLCG_GC_READ (0x1 << 28)
#define AMDGPU_RLCG_MMHUB_WRITE (0x2 << 28)
/* all asic after AI use this offset */
#define mmRCC_IOV_FUNC_IDENTIFIER 0xDE5
/* tonga/fiji use this offset */
@@ -321,4 +327,6 @@ enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *ad
void amdgpu_virt_update_sriov_video_codec(struct amdgpu_device *adev,
struct amdgpu_video_codec_info *encode, uint32_t encode_array_size,
struct amdgpu_video_codec_info *decode, uint32_t decode_array_size);
bool amdgpu_virt_get_rlcg_reg_access_flag(struct amdgpu_device *adev, u32 acc_flags,
u32 hwip, bool write, u32 *rlcg_flag);
#endif