[PATCH 2/8] drm/amdgpu: Expose *_setup_vm_pt_regs for kfd to use

["Zhao, Yong" <Yong.Zhao@xxxxxxx>]

Change-Id: I337a61ccfeb68241a0663ba7fad6e0fec1646348
Signed-off-by: Yong Zhao <Yong.Zhao@xxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h      |  6 ++++++
 drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 19 +++++++++++++++----
 drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c  | 18 ++++++++++++++----
 3 files changed, 35 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 6317f35..8f81dfd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1269,5 +1269,11 @@ int amdgpu_dm_display_resume(struct amdgpu_device *adev );
 static inline int amdgpu_dm_display_resume(struct amdgpu_device *adev) { return 0; }
 #endif
 
+/* amdgpu_amdkfd*.c */
+void gfxhub_v1_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
+				uint64_t value);
+void mmhub_v1_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
+				uint64_t value);
+
 #include "amdgpu_object.h"
 #endif
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
index ceb7847..71bdb3d 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
@@ -39,15 +39,26 @@ static void gfxhub_v1_0_init_gart_pt_regs(struct amdgpu_device *adev)
 {
 	uint64_t value = amdgpu_gmc_pd_addr(adev->gart.bo);
 
-	WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
-		     lower_32_bits(value));
+	gfxhub_v1_0_setup_vm_pt_regs(adev, 0, value);
+}
+
+void gfxhub_v1_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
+				uint64_t value)
+{
+	/* two registers distance between mmVM_CONTEXT0_* to mmVM_CONTEXT1_* */
+	int offset = mmVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32
+			- mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
 
-	WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
-		     upper_32_bits(value));
+	WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
+				offset * vmid, lower_32_bits(value));
+
+	WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
+				offset * vmid, upper_32_bits(value));
 }
 
 static void gfxhub_v1_0_init_gart_aperture_regs(struct amdgpu_device *adev)
 {
+
 	gfxhub_v1_0_init_gart_pt_regs(adev);
 
 	WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
index 14649f8..f86e9a1 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
@@ -56,11 +56,21 @@ static void mmhub_v1_0_init_gart_pt_regs(struct amdgpu_device *adev)
 {
 	uint64_t value = amdgpu_gmc_pd_addr(adev->gart.bo);
 
-	WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
-		     lower_32_bits(value));
+	mmhub_v1_0_setup_vm_pt_regs(adev, 0, value);
+}
+
+void mmhub_v1_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
+				uint64_t value)
+{
+	/* two registers distance between mmVM_CONTEXT0_* to mmVM_CONTEXT1_* */
+	int offset = mmVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32
+			- mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
+
+	WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
+			offset * vmid, lower_32_bits(value));
 
-	WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
-		     upper_32_bits(value));
+	WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
+			offset * vmid, upper_32_bits(value));
 }
 
 static void mmhub_v1_0_init_gart_aperture_regs(struct amdgpu_device *adev)
-- 
2.7.4

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