[PATCH 09/18] drm/amdgpu: fix to miss program invalidation at resume

[ray.huang@xxxxxxx (Huang Rui)]

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 at amd.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(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
index 7b3447a..da2c9b7 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
@@ -227,6 +227,20 @@ static void gfxhub_v1_0_setup_vmid_config(struct amdgpu_device *adev)
 	}
 }
 
+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)
 {
 	DRM_INFO("%s -- in\n", __func__);
@@ -252,6 +266,7 @@ int gfxhub_v1_0_gart_enable(struct amdgpu_device *adev)
 	gfxhub_v1_0_enable_system_domain(adev);
 	gfxhub_v1_0_dis_identity_aperture(adev);
 	gfxhub_v1_0_setup_vmid_config(adev);
+	gfxhub_v1_0_program_invalidation(adev);
 
 	return 0;
 }
@@ -361,18 +376,6 @@ static int gfxhub_v1_0_sw_fini(void *handle)
 
 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;
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
index 536aa86..2f85647 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
@@ -241,6 +241,20 @@ static void mmhub_v1_0_setup_vmid_config(struct amdgpu_device *adev)
 	}
 }
 
+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)
 {
 	DRM_INFO("%s -- in\n", __func__);
@@ -266,6 +280,7 @@ int mmhub_v1_0_gart_enable(struct amdgpu_device *adev)
 	mmhub_v1_0_enable_system_domain(adev);
 	mmhub_v1_0_dis_identity_aperture(adev);
 	mmhub_v1_0_setup_vmid_config(adev);
+	mmhub_v1_0_program_invalidation(adev);
 
 	return 0;
 }
@@ -374,18 +389,6 @@ static int mmhub_v1_0_sw_fini(void *handle)
 
 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;
 }
 
-- 
2.7.4