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authorJohn Clements <john.clements@amd.com>2019-12-02 17:57:25 +0800
committerAlex Deucher <alexander.deucher@amd.com>2019-12-03 11:52:11 -0500
commitf0312f45a0540a1551ca4644ff2461250520111a (patch)
tree64d3be724a499921994d951a0f9ba45ff0890b93 /drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c
parent76d8f83b2a6175909f4e93de868609d76fbba47c (diff)
drm/amdgpu: Added ASIC specific checks in gfxhub V1.1 get XGMI info
Added max hive/node info checks per supported ASIC Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: John Clements <john.clements@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c19
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c
index 5e9ab8eb214a..c0ab71df0d90 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c
@@ -33,16 +33,31 @@ int gfxhub_v1_1_get_xgmi_info(struct amdgpu_device *adev)
u32 xgmi_lfb_cntl = RREG32_SOC15(GC, 0, mmMC_VM_XGMI_LFB_CNTL);
u32 max_region =
REG_GET_FIELD(xgmi_lfb_cntl, MC_VM_XGMI_LFB_CNTL, PF_MAX_REGION);
+ u32 max_num_physical_nodes = 0;
+ u32 max_physical_node_id = 0;
+
+ switch (adev->asic_type) {
+ case CHIP_VEGA20:
+ max_num_physical_nodes = 4;
+ max_physical_node_id = 3;
+ break;
+ case CHIP_ARCTURUS:
+ max_num_physical_nodes = 8;
+ max_physical_node_id = 7;
+ break;
+ default:
+ return -EINVAL;
+ }
/* PF_MAX_REGION=0 means xgmi is disabled */
if (max_region) {
adev->gmc.xgmi.num_physical_nodes = max_region + 1;
- if (adev->gmc.xgmi.num_physical_nodes > 4)
+ if (adev->gmc.xgmi.num_physical_nodes > max_num_physical_nodes)
return -EINVAL;
adev->gmc.xgmi.physical_node_id =
REG_GET_FIELD(xgmi_lfb_cntl, MC_VM_XGMI_LFB_CNTL, PF_LFB_REGION);
- if (adev->gmc.xgmi.physical_node_id > 3)
+ if (adev->gmc.xgmi.physical_node_id > max_physical_node_id)
return -EINVAL;
adev->gmc.xgmi.node_segment_size = REG_GET_FIELD(
RREG32_SOC15(GC, 0, mmMC_VM_XGMI_LFB_SIZE),