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authorAlex Deucher2015-11-12 02:35:32 +0100
committerAlex Deucher2015-12-21 22:42:32 +0100
commitcfd316d59e203985699495147a973ba058ff5478 (patch)
tree723014b7292515c07955d1b7908d4f7ea12e8d78
parentdrm/amdgpu: store pcie gen mask and link width (diff)
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drm/amdgpu/cgs: add sys info query for pcie gen and link width
Needed by powerplay to properly handle pcie dpm switching. Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c6
-rw-r--r--drivers/gpu/drm/amd/include/cgs_common.h2
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
index a611401a29d5..6fa0feac27f8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
@@ -754,6 +754,12 @@ static int amdgpu_cgs_query_system_info(void *cgs_device,
case CGS_SYSTEM_INFO_ADAPTER_BDF_ID:
sys_info->value = adev->pdev->devfn | (adev->pdev->bus->number << 8);
break;
+ case CGS_SYSTEM_INFO_PCIE_GEN_INFO:
+ sys_info->value = adev->pm.pcie_gen_mask;
+ break;
+ case CGS_SYSTEM_INFO_PCIE_MLW:
+ sys_info->value = adev->pm.pcie_mlw_mask;
+ break;
default:
return -ENODEV;
}
diff --git a/drivers/gpu/drm/amd/include/cgs_common.h b/drivers/gpu/drm/amd/include/cgs_common.h
index 2bbffd1191bd..03affb348f69 100644
--- a/drivers/gpu/drm/amd/include/cgs_common.h
+++ b/drivers/gpu/drm/amd/include/cgs_common.h
@@ -107,6 +107,8 @@ enum cgs_ucode_id {
enum cgs_system_info_id {
CGS_SYSTEM_INFO_ADAPTER_BDF_ID = 1,
+ CGS_SYSTEM_INFO_PCIE_GEN_INFO,
+ CGS_SYSTEM_INFO_PCIE_MLW,
CGS_SYSTEM_INFO_ID_MAXIMUM,
};