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From da6d94d6557a0995675815096d6dfdfeda6c337e Mon Sep 17 00:00:00 2001
From: Kalyan Alle <kalyan.alle@amd.com>
Date: Wed, 3 Jan 2018 13:25:20 +0530
Subject: [PATCH 0852/4131] drm/amd/amdgpu: Disable CG for eStoney.
This patch disables the CG on eStoney
to get rid of the filesystem corruption,booting issue and IOMMU errors.
Signed-off-by: Kalyan Alle <kalyan.alle@amd.com
---
drivers/gpu/drm/amd/amdgpu/vi.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 7d4d22d..f5ec5f8 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -1066,7 +1066,11 @@ static int vi_common_early_init(void *handle)
AMD_CG_SUPPORT_GFX_CP_LS |
AMD_CG_SUPPORT_GFX_CGTS |
AMD_CG_SUPPORT_GFX_CGTS_LS |
- AMD_CG_SUPPORT_GFX_CGCG |
+ /* Enabling CGCG on 4.9 kernel results in
+ * IOMMU errors and filesystem corruption
+ * Disable CGCG until the issue is fixed properly
+ */
+ //AMD_CG_SUPPORT_GFX_CGCG |
AMD_CG_SUPPORT_GFX_CGLS |
AMD_CG_SUPPORT_BIF_LS |
AMD_CG_SUPPORT_HDP_MGCG |
--
2.7.4
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