blob: 9833b050807d466f126976adb0ee08844791b80d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
From 9bb7de3e5e4a81d7b7cbf657dabaf63044af78c2 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 19 Jun 2018 16:00:47 -0500
Subject: [PATCH 0344/2940] drm/amdgpu/gmc: add initial xgmi structure to
amdgpu_gmc structure
Initial pass at a structure to store xgmi info. xgmi is a high
speed cross gpu interconnect.
Change-Id: I8b373bd847c857dd7cbefa55d1ede2a8785deb06
Acked-by: Huang Rui <ray.huang@amd.com>
Acked-by: Slava Abramov <slava.abramov@amd.com>
Reviewed-by :Shaoyun liu <Shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
index 2be39ef5cfc0..ac94c83dd696 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
@@ -87,6 +87,18 @@ struct amdgpu_gmc_funcs {
u64 *dst, u64 *flags);
};
+struct amdgpu_xgmi {
+ /* from psp */
+ u64 device_id;
+ u64 hive_id;
+ /* fixed per family */
+ u64 node_segment_size;
+ /* physical node (0-3) */
+ unsigned physical_node_id;
+ /* number of nodes (0-4) */
+ unsigned num_physical_nodes;
+};
+
struct amdgpu_gmc {
resource_size_t aper_size;
resource_size_t aper_base;
@@ -125,6 +137,8 @@ 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))
--
2.17.1
|
