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| author | Hawking Zhang <Hawking.Zhang@amd.com> | 2026-01-17 20:34:44 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-03-17 10:32:41 -0400 |
| commit | ec5d2d2d55b596f2ada28b545c9cef78036c74ec (patch) | |
| tree | 6d9d30d5062ac1fb3bb674a92ed0b0ad8d976a2d | |
| parent | be3f235bb61b71fc5635c4459fee372252acd772 (diff) | |
| download | linux-ec5d2d2d55b596f2ada28b545c9cef78036c74ec.tar.gz linux-ec5d2d2d55b596f2ada28b545c9cef78036c74ec.zip | |
drm/amdgpu: Retire get_xgmi_info callback for gfxhub v12_1
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>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfxhub_v12_1.c | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v12_1.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v12_1.c index d086c23e4c2d..3544eb42dca6 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v12_1.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v12_1.c @@ -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) |