From: Alex Deucher <alexander.deucher@xxxxxxx>
Initial pass at a structure to store xgmi info. xgmi is a high
speed cross gpu interconnect.
Acked-by: Huang Rui <ray.huang at amd.com>
Acked-by: Slava Abramov <slava.abramov at amd.com>
Reviewed-by :Shaoyun liu <Shaoyun.liu at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Change-Id: I8b373bd847c857dd7cbefa55d1ede2a8785deb06
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
index 17ffc35..bfb0a7e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
@@ -87,6 +87,14 @@ struct amdgpu_gmc_funcs {
u64 *dst, u64 *flags);
};
+struct amdgpu_xgmi {
+ u64 device_id; /* from psp */
+ u64 hive_id; /* from psp */
+ u64 node_segment_size; /* fixed per family */
+ unsigned physical_node_id; /* physical node (0-3) */
+ unsigned num_physical_nodes; /* number of nodes (0-4) */
+};
+
struct amdgpu_gmc {
resource_size_t aper_size;
resource_size_t aper_base;
@@ -125,6 +133,8 @@ struct amdgpu_gmc {
atomic_t vm_fault_info_updated;
const struct amdgpu_gmc_funcs *gmc_funcs;
+
+ struct amdgpu_xgmi xgmi;
};
#define amdgpu_gmc_flush_gpu_tlb(adev, vmid) (adev)->gmc.gmc_funcs->flush_gpu_tlb((adev), (vmid))
--
2.7.4
