drm/amdgpu: implement cgs interface to query system info
Add a query to get the bus number and function of the
device.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
diff --git a/drivers/gpu/drm/amd/include/cgs_common.h b/drivers/gpu/drm/amd/include/cgs_common.h
index 8bf6ee5..5ea8db0 100644
--- a/drivers/gpu/drm/amd/include/cgs_common.h
+++ b/drivers/gpu/drm/amd/include/cgs_common.h
@@ -105,6 +105,21 @@
CGS_UCODE_ID_MAXIMUM,
};
+enum cgs_system_info_id {
+ CGS_SYSTEM_INFO_ADAPTER_BDF_ID = 1,
+ CGS_SYSTEM_INFO_ID_MAXIMUM,
+};
+
+struct cgs_system_info {
+ uint64_t size;
+ uint64_t info_id;
+ union {
+ void *ptr;
+ uint64_t value;
+ };
+ uint64_t padding[13];
+};
+
/**
* struct cgs_clock_limits - Clock limits
*
@@ -533,6 +548,10 @@
uint32_t output_count,
uint32_t input_size,
uint32_t output_size);
+
+typedef int (*cgs_query_system_info)(void *cgs_device,
+ struct cgs_system_info *sys_info);
+
struct cgs_ops {
/* memory management calls (similar to KFD interface) */
cgs_gpu_mem_info_t gpu_mem_info;
@@ -575,6 +594,8 @@
cgs_set_clockgating_state set_clockgating_state;
/* ACPI */
cgs_call_acpi_method call_acpi_method;
+ /* get system info */
+ cgs_query_system_info query_system_info;
};
struct cgs_os_ops; /* To be define in OS-specific CGS header */
@@ -663,5 +684,7 @@
CGS_CALL(set_clockgating_state, dev, block_type, state)
#define cgs_call_acpi_method(dev, acpi_method, acpi_function, pintput, poutput, output_count, input_size, output_size) \
CGS_CALL(call_acpi_method, dev, acpi_method, acpi_function, pintput, poutput, output_count, input_size, output_size)
+#define cgs_query_system_info(dev, sys_info) \
+ CGS_CALL(query_system_info, dev, sys_info)
#endif /* _CGS_COMMON_H */