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path: root/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3724-drm-amdgpu-Disable-retry-faults-in-VMID0.patch
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From 2a92f59c8b458cc83e755ad613b4928a2e1b311c Mon Sep 17 00:00:00 2001
From: Felix Kuehling <Felix.Kuehling@amd.com>
Date: Wed, 4 Sep 2019 19:26:16 -0400
Subject: [PATCH 3724/4256] drm/amdgpu: Disable retry faults in VMID0

There is no point retrying page faults in VMID0. Those faults are
always fatal.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-and-Tested-by: Huang Rui <ray.huang@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 2 ++
 drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c | 2 ++
 drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c  | 2 ++
 drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c  | 2 ++
 drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c  | 2 ++
 5 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
index 052c924952b9..db8baf733508 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
@@ -178,6 +178,8 @@ static void gfxhub_v1_0_enable_system_domain(struct amdgpu_device *adev)
 	tmp = RREG32_SOC15(GC, 0, mmVM_CONTEXT0_CNTL);
 	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
+	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL,
+			    RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
 	WREG32_SOC15(GC, 0, mmVM_CONTEXT0_CNTL, tmp);
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c
index 8b789f750b72..a9238735d361 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c
@@ -166,6 +166,8 @@ static void gfxhub_v2_0_enable_system_domain(struct amdgpu_device *adev)
 	tmp = RREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL);
 	tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 	tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
+	tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL,
+			    RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
 	WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL, tmp);
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
index ece27e27658f..3b28c1c0cf21 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
@@ -207,6 +207,8 @@ static void mmhub_v1_0_enable_system_domain(struct amdgpu_device *adev)
 	tmp = RREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_CNTL);
 	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
+	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL,
+			    RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
 	WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_CNTL, tmp);
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
index 3542c203c3c8..86ed8cb915a8 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
@@ -152,6 +152,8 @@ static void mmhub_v2_0_enable_system_domain(struct amdgpu_device *adev)
 	tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_CNTL);
 	tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 	tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
+	tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL,
+			    RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
 	WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_CNTL, tmp);
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c
index 0cf7ef44b4b5..657970f9ebfb 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c
@@ -240,6 +240,8 @@ static void mmhub_v9_4_enable_system_domain(struct amdgpu_device *adev,
 				  hubid * MMHUB_INSTANCE_REGISTER_OFFSET);
 	tmp = REG_SET_FIELD(tmp, VML2VC0_VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 	tmp = REG_SET_FIELD(tmp, VML2VC0_VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
+	tmp = REG_SET_FIELD(tmp, VML2VC0_VM_CONTEXT0_CNTL,
+			    RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
 	WREG32_SOC15_OFFSET(MMHUB, 0, mmVML2VC0_VM_CONTEXT0_CNTL,
 			    hubid * MMHUB_INSTANCE_REGISTER_OFFSET, tmp);
 }
-- 
2.17.1