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From 25dac69c63fa00fd61f005fcc2c05050ee808eec Mon Sep 17 00:00:00 2001
From: Rex Zhu <Rex.Zhu@amd.com>
Date: Thu, 8 Feb 2018 15:57:10 +0800
Subject: [PATCH 3592/4131] 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>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c | 3 +++
drivers/gpu/drm/amd/include/cgs_common.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
index dc3360b..72c9a7e2 100644
--- 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 f5c7397..98cf4ce 100644
--- 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,
};
--
2.7.4
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