[PATCH 02/18] drm/amdgpu: abstract gart aperture initialization for gfxhub/mmhub

[Huang Rui]

Signed-off-by: Huang Rui <ray.huang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 34 +++++++++++++++++---------------
 drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c  | 33 +++++++++++++++++--------------
 2 files changed, 36 insertions(+), 31 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
index 8cf30b7..b21607c 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
@@ -49,6 +49,23 @@ static void gfxhub_v1_0_init_pt_regs(struct amdgpu_device *adev)
 		(u32)(value >> 32));
 }
 
+static void gfxhub_v1_0_init_gart_aperture_regs(struct amdgpu_device *adev)
+{
+	WREG32(SOC15_REG_OFFSET(GC, 0,
+				mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32),
+		(u32)(adev->mc.gtt_start >> 12));
+	WREG32(SOC15_REG_OFFSET(GC, 0,
+				mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32),
+		(u32)(adev->mc.gtt_start >> 44));
+
+	WREG32(SOC15_REG_OFFSET(GC, 0,
+				mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32),
+		(u32)(adev->mc.gtt_end >> 12));
+	WREG32(SOC15_REG_OFFSET(GC, 0,
+				mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32),
+		(u32)(adev->mc.gtt_end >> 44));
+}
+
 int gfxhub_v1_0_gart_enable(struct amdgpu_device *adev)
 {
 	u32 tmp;
@@ -57,8 +74,8 @@ int gfxhub_v1_0_gart_enable(struct amdgpu_device *adev)
 
 	/* Program MC. */
 	gfxhub_v1_0_init_pt_regs(adev);
+	gfxhub_v1_0_init_gart_aperture_regs(adev);
 
-	/* Update configuration */
 	WREG32(SOC15_REG_OFFSET(GC, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR),
 		adev->mc.vram_start >> 18);
 	WREG32(SOC15_REG_OFFSET(GC, 0, mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR),
@@ -159,21 +176,6 @@ int gfxhub_v1_0_gart_enable(struct amdgpu_device *adev)
 			    0);
 	WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_L2_CNTL4), tmp);
 
-	/* setup context0 */
-	WREG32(SOC15_REG_OFFSET(GC, 0,
-				mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32),
-		(u32)(adev->mc.gtt_start >> 12));
-	WREG32(SOC15_REG_OFFSET(GC, 0,
-				mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32),
-		(u32)(adev->mc.gtt_start >> 44));
-
-	WREG32(SOC15_REG_OFFSET(GC, 0,
-				mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32),
-		(u32)(adev->mc.gtt_end >> 12));
-	WREG32(SOC15_REG_OFFSET(GC, 0,
-				mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32),
-		(u32)(adev->mc.gtt_end >> 44));
-
 	WREG32(SOC15_REG_OFFSET(GC, 0,
 				mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32),
 		(u32)(adev->dummy_page.addr >> 12));
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
index 84eb3a3..84cdca2 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
@@ -62,6 +62,23 @@ static void mmhub_v1_0_init_pt_regs(struct amdgpu_device *adev)
 		(u32)(value >> 32));
 }
 
+static void mmhub_v1_0_init_gart_aperture_regs(struct amdgpu_device *adev)
+{
+	WREG32(SOC15_REG_OFFSET(MMHUB, 0,
+				mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32),
+		(u32)(adev->mc.gtt_start >> 12));
+	WREG32(SOC15_REG_OFFSET(MMHUB, 0,
+				mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32),
+		(u32)(adev->mc.gtt_start >> 44));
+
+	WREG32(SOC15_REG_OFFSET(MMHUB, 0,
+				mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32),
+		(u32)(adev->mc.gtt_end >> 12));
+	WREG32(SOC15_REG_OFFSET(MMHUB, 0,
+				mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32),
+		(u32)(adev->mc.gtt_end >> 44));
+}
+
 int mmhub_v1_0_gart_enable(struct amdgpu_device *adev)
 {
 	u32 tmp;
@@ -71,6 +88,7 @@ int mmhub_v1_0_gart_enable(struct amdgpu_device *adev)
 
 	/* Program MC. */
 	mmhub_v1_0_init_pt_regs(adev);
+	mmhub_v1_0_init_gart_aperture_regs(adev);
 
 	/* Update configuration */
 	DRM_INFO("%s -- in\n", __func__);
@@ -173,21 +191,6 @@ int mmhub_v1_0_gart_enable(struct amdgpu_device *adev)
 			    0);
 	WREG32(SOC15_REG_OFFSET(MMHUB, 0, mmVM_L2_CNTL4), tmp);
 
-	/* setup context0 */
-	WREG32(SOC15_REG_OFFSET(MMHUB, 0,
-				mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32),
-		(u32)(adev->mc.gtt_start >> 12));
-	WREG32(SOC15_REG_OFFSET(MMHUB, 0,
-				mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32),
-		(u32)(adev->mc.gtt_start >> 44));
-
-	WREG32(SOC15_REG_OFFSET(MMHUB, 0,
-				mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32),
-		(u32)(adev->mc.gtt_end >> 12));
-	WREG32(SOC15_REG_OFFSET(MMHUB, 0,
-				mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32),
-		(u32)(adev->mc.gtt_end >> 44));
-
 	WREG32(SOC15_REG_OFFSET(MMHUB, 0,
 				mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32),
 		(u32)(adev->dummy_page.addr >> 12));
-- 
2.7.4