diff options
| author | Jonathan Kim <jonathan.kim@amd.com> | 2021-08-03 19:01:55 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-08-18 18:22:24 -0400 |
| commit | 44357a1bd5f5a1012024a127a4653c2dfa4af18a (patch) | |
| tree | 2cce7ef66e40d8c3652cdb4470c0fa6b5656ec54 /drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | |
| parent | 3a6e4106a8fdb87fd3ede0eb242b70b0c4c82bd5 (diff) | |
drm/amdgpu: get extended xgmi topology data
The TA has a limit to the amount of data that can be retrieved from
GET_TOPOLOGY. For setups that exceed this limit, the xGMI topology
needs to be re-initialized and data needs to be re-fetched from the
extended link records by setting a flag in the shared command buffer.
The number of hops and the number of links must be accumulated by the
driver. Other data points are all fetched from the first request.
Because the TA has already exceeded its link record limit, it
cannot hold bidirectional information. Otherwise the driver would
have to do more than two fetches so the driver has to reflect the
topology information in the opposite direction.
v2: squashed with internal reviewed fix
Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Hawking Zhang <hawking.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h index 2cd84e21592a..2a448f6cde76 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h @@ -143,6 +143,7 @@ struct psp_xgmi_context { uint64_t xgmi_shared_mc_addr; void *xgmi_shared_buf; struct psp_xgmi_topology_info top_info; + bool supports_extended_data; }; struct psp_ras_context { @@ -433,14 +434,15 @@ int psp_gpu_reset(struct amdgpu_device *adev); int psp_update_vcn_sram(struct amdgpu_device *adev, int inst_idx, uint64_t cmd_gpu_addr, int cmd_size); -int psp_xgmi_initialize(struct psp_context *psp); +int psp_xgmi_initialize(struct psp_context *psp, bool set_extended_data, bool load_ta); int psp_xgmi_terminate(struct psp_context *psp); int psp_xgmi_invoke(struct psp_context *psp, uint32_t ta_cmd_id); int psp_xgmi_get_hive_id(struct psp_context *psp, uint64_t *hive_id); int psp_xgmi_get_node_id(struct psp_context *psp, uint64_t *node_id); int psp_xgmi_get_topology_info(struct psp_context *psp, int number_devices, - struct psp_xgmi_topology_info *topology); + struct psp_xgmi_topology_info *topology, + bool get_extended_data); int psp_xgmi_set_topology_info(struct psp_context *psp, int number_devices, struct psp_xgmi_topology_info *topology); |