From: Huang Rui <ray.huang@amd.com>
Date: Wed, 31 May 2017 22:32:35 +0800
Subject: drm/amdgpu: fix to miss program invalidation at resume
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Git-commit: 1e4eccdaf293695f4781ce8b08d3b542d87173c5
Patch-mainline: v4.13-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

This patch moves invalidation into gart enable function from hw_init.
Because we would like align the sequence calling between init and resume.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c |   27 +++++++++++++++------------
 drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c  |   27 +++++++++++++++------------
 2 files changed, 30 insertions(+), 24 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
@@ -232,6 +232,20 @@ static void gfxhub_v1_0_setup_vmid_confi
 	}
 }
 
+static void gfxhub_v1_0_program_invalidation(struct amdgpu_device *adev)
+{
+	unsigned i;
+
+	for (i = 0 ; i < 18; ++i) {
+		WREG32(SOC15_REG_OFFSET(GC, 0,
+					mmVM_INVALIDATE_ENG0_ADDR_RANGE_LO32) +
+		       2 * i, 0xffffffff);
+		WREG32(SOC15_REG_OFFSET(GC, 0,
+					mmVM_INVALIDATE_ENG0_ADDR_RANGE_HI32) +
+		       2 * i, 0x1f);
+	}
+}
+
 int gfxhub_v1_0_gart_enable(struct amdgpu_device *adev)
 {
 	if (amdgpu_sriov_vf(adev)) {
@@ -255,6 +269,7 @@ int gfxhub_v1_0_gart_enable(struct amdgp
 	gfxhub_v1_0_enable_system_domain(adev);
 	gfxhub_v1_0_disable_identity_aperture(adev);
 	gfxhub_v1_0_setup_vmid_config(adev);
+	gfxhub_v1_0_program_invalidation(adev);
 
 	return 0;
 }
@@ -364,18 +379,6 @@ static int gfxhub_v1_0_sw_fini(void *han
 
 static int gfxhub_v1_0_hw_init(void *handle)
 {
-	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
-	unsigned i;
-
-	for (i = 0 ; i < 18; ++i) {
-		WREG32(SOC15_REG_OFFSET(GC, 0,
-					mmVM_INVALIDATE_ENG0_ADDR_RANGE_LO32) +
-		       2 * i, 0xffffffff);
-		WREG32(SOC15_REG_OFFSET(GC, 0,
-					mmVM_INVALIDATE_ENG0_ADDR_RANGE_HI32) +
-		       2 * i, 0x1f);
-	}
-
 	return 0;
 }
 
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
@@ -244,6 +244,20 @@ static void mmhub_v1_0_setup_vmid_config
 	}
 }
 
+static void mmhub_v1_0_program_invalidation(struct amdgpu_device *adev)
+{
+	unsigned i;
+
+	for (i = 0; i < 18; ++i) {
+		WREG32(SOC15_REG_OFFSET(MMHUB, 0,
+					mmVM_INVALIDATE_ENG0_ADDR_RANGE_LO32) +
+		       2 * i, 0xffffffff);
+		WREG32(SOC15_REG_OFFSET(MMHUB, 0,
+					mmVM_INVALIDATE_ENG0_ADDR_RANGE_HI32) +
+		       2 * i, 0x1f);
+	}
+}
+
 int mmhub_v1_0_gart_enable(struct amdgpu_device *adev)
 {
 	if (amdgpu_sriov_vf(adev)) {
@@ -267,6 +281,7 @@ int mmhub_v1_0_gart_enable(struct amdgpu
 	mmhub_v1_0_enable_system_domain(adev);
 	mmhub_v1_0_disable_identity_aperture(adev);
 	mmhub_v1_0_setup_vmid_config(adev);
+	mmhub_v1_0_program_invalidation(adev);
 
 	return 0;
 }
@@ -375,18 +390,6 @@ static int mmhub_v1_0_sw_fini(void *hand
 
 static int mmhub_v1_0_hw_init(void *handle)
 {
-	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
-	unsigned i;
-
-	for (i = 0; i < 18; ++i) {
-		WREG32(SOC15_REG_OFFSET(MMHUB, 0,
-					mmVM_INVALIDATE_ENG0_ADDR_RANGE_LO32) +
-		       2 * i, 0xffffffff);
-		WREG32(SOC15_REG_OFFSET(MMHUB, 0,
-					mmVM_INVALIDATE_ENG0_ADDR_RANGE_HI32) +
-		       2 * i, 0x1f);
-	}
-
 	return 0;
 }