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drm/amdgpu: Retire get_xgmi_info callback for gfxhub v12_1

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gfxhub v12_1 is not always on. querying xgmi info
from it may not work consistently

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hawking Zhang 2026-01-17 20:34:44 +08:00 committed by Alex Deucher
parent be3f235bb6
commit ec5d2d2d55
1 changed files with 0 additions and 42 deletions
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42
drivers/gpu/drm/amd/amdgpu/gfxhub_v12_1.c
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@ -822,47 +822,6 @@ static void gfxhub_v12_1_init(struct amdgpu_device *adev)
gfxhub_v12_1_xcc_init(adev, xcc_mask);
}
static int gfxhub_v12_1_get_xgmi_info(struct amdgpu_device *adev)
{
u32 max_num_physical_nodes;
u32 max_physical_node_id;
u32 xgmi_lfb_cntl;
u32 max_region;
u64 seg_size;
xgmi_lfb_cntl = RREG32_SOC15(GC, GET_INST(GC, 0),
regGCMC_VM_XGMI_LFB_CNTL);
seg_size = REG_GET_FIELD(RREG32_SOC15(GC, GET_INST(GC, 0),
regGCMC_VM_XGMI_LFB_SIZE),
GCMC_VM_XGMI_LFB_SIZE, PF_LFB_SIZE) << 24;
max_region = REG_GET_FIELD(xgmi_lfb_cntl,
GCMC_VM_XGMI_LFB_CNTL,
PF_MAX_REGION);
max_num_physical_nodes = 8;
max_physical_node_id = 7;
/* PF_MAX_REGION=0 means xgmi is disabled */
if (max_region || adev->gmc.xgmi.connected_to_cpu) {
adev->gmc.xgmi.num_physical_nodes = max_region + 1;
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,
GCMC_VM_XGMI_LFB_CNTL,
PF_LFB_REGION);
if (adev->gmc.xgmi.physical_node_id > max_physical_node_id)
return -EINVAL;
adev->gmc.xgmi.node_segment_size = seg_size;
}
return 0;
}
const struct amdgpu_gfxhub_funcs gfxhub_v12_1_funcs = {
.get_fb_location = gfxhub_v12_1_get_fb_location,
.get_mc_fb_offset = gfxhub_v12_1_get_mc_fb_offset,
@ -871,7 +830,6 @@ const struct amdgpu_gfxhub_funcs gfxhub_v12_1_funcs = {
.gart_disable = gfxhub_v12_1_gart_disable,
.set_fault_enable_default = gfxhub_v12_1_set_fault_enable_default,
.init = gfxhub_v12_1_init,
.get_xgmi_info = gfxhub_v12_1_get_xgmi_info,
};
static int gfxhub_v12_1_xcp_resume(void *handle, uint32_t inst_mask)