From: Shaoyun Liu <shaoyun....@amd.com>
Place holder for XGMI support
Change-Id: I924fa3693366409de0218009c7f709cb464854cc
Signed-off-by: Shaoyun Liu <shaoyun....@amd.com>
Reviewed-by: Huang Rui <ray.hu...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 34 +++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
index 981887c..8b8720e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
@@ -35,6 +35,7 @@
#define PSP_TMR_SIZE 0x400000
struct psp_context;
+struct psp_xgmi_topology_info;
enum psp_ring_type
{
@@ -79,6 +80,12 @@ struct psp_funcs
enum AMDGPU_UCODE_ID ucode_type);
bool (*smu_reload_quirk)(struct psp_context *psp);
int (*mode1_reset)(struct psp_context *psp);
+ uint64_t (*xgmi_get_device_id)(struct psp_context *psp);
+ uint64_t (*xgmi_get_hive_id)(struct psp_context *psp);
+ int (*xgmi_get_topology_info)(struct psp_context *psp, int
number_devices,
+ struct psp_xgmi_topology_info *topology);
+ int (*xgmi_set_topology_info)(struct psp_context *psp, int
number_devices,
+ struct psp_xgmi_topology_info *topology);
};
struct psp_context
@@ -134,6 +141,23 @@ struct amdgpu_psp_funcs {
enum AMDGPU_UCODE_ID);
};
+struct psp_xgmi_topology_info {
+ /* Generated by PSP to identify the GPU instance within xgmi connection
*/
+ uint64_t device_id;
+ /*
+ * If all bits set to 0 , driver indicates it wants to retrieve the xgmi
+ * connection vector topology, but not access enable the connections
+ * if some or all bits are set to 1, driver indicates it want to
retrieve the
+ * current xgmi topology and access enable the link to GPU[i]
associated
+ * with the bit position in the vector.
+ * On return,: bits indicated which xgmi links are present/active
depending
+ * on the value passed in. The relative bit offset for the relative
GPU index
+ * within the hive is always marked active.
+ */
+ uint32_t connection_mask;
+ uint32_t reserved; /* must be 0 */
+};
+
#define psp_prep_cmd_buf(ucode, type) (psp)->funcs->prep_cmd_buf((ucode),
(type))
#define psp_ring_init(psp, type) (psp)->funcs->ring_init((psp), (type))
#define psp_ring_create(psp, type) (psp)->funcs->ring_create((psp), (type))
@@ -153,6 +177,16 @@ struct amdgpu_psp_funcs {
((psp)->funcs->smu_reload_quirk ?
(psp)->funcs->smu_reload_quirk((psp)) : false)
#define psp_mode1_reset(psp) \
((psp)->funcs->mode1_reset ? (psp)->funcs->mode1_reset((psp)) :
false)
+#define psp_xgmi_get_device_id(psp) \
+ ((psp)->funcs->xgmi_get_device_id ?
(psp)->funcs->xgmi_get_device_id((psp)) : 0)
+#define psp_xgmi_get_hive_id(psp) \
+ ((psp)->funcs->xgmi_get_hive_id ?
(psp)->funcs->xgmi_get_hive_id((psp)) : 0)
+#define psp_xgmi_get_topology_info(psp, num_device, topology) \
+ ((psp)->funcs->xgmi_get_topology_info ? \
+ (psp)->funcs->xgmi_get_topology_info((psp), (num_device),
(topology)) : -EINVAL)
+#define psp_xgmi_set_topology_info(psp, num_device, topology) \
+ ((psp)->funcs->xgmi_set_topology_info ? \
+ (psp)->funcs->xgmi_set_topology_info((psp), (num_device),
(topology)) : -EINVAL)
#define amdgpu_psp_check_fw_loading_status(adev, i)
(adev)->firmware.funcs->check_fw_loading_status((adev), (i))
--
2.7.4
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