drm/amdgpu: Add query vram width in CGS query system info

powerplay need vram width to set default mclk optimization
settings(uphyst/downhyst/activity threshold)

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
index dc3360b16bda600cb71755ca8f621c6d7ca0d4f9..72c9a7e2c373a610d75594eae948c3a6cbcbe356 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
@@ -905,6 +905,9 @@ static int amdgpu_cgs_query_system_info(struct cgs_device *cgs_device,
        case CGS_SYSTEM_INFO_PCIE_BUS_DEVFN:
                sys_info->value = adev->pdev->devfn;
                break;
+       case CGS_SYSTEM_INFO_VRAM_WIDTH:
+               sys_info->value = adev->gmc.vram_width;
+               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 f5c73970ab886d8ce9445789f6df835608e0e068..98cf4cebff17ced74d652b3942ad357fb4c6d2d9 100644 (file)
--- a/drivers/gpu/drm/amd/include/cgs_common.h
+++ b/drivers/gpu/drm/amd/include/cgs_common.h
@@ -101,6 +101,7 @@ enum cgs_system_info_id {
        CGS_SYSTEM_INFO_PCIE_SUB_SYS_ID,
        CGS_SYSTEM_INFO_PCIE_SUB_SYS_VENDOR_ID,
        CGS_SYSTEM_INFO_PCIE_BUS_DEVFN,
+       CGS_SYSTEM_INFO_VRAM_WIDTH,
        CGS_SYSTEM_INFO_ID_MAXIMUM,
 };