drm/amdgpu: add mmhub v2.3 for vangogh (v4)

There are too many register offset mismatch between mmhub v2.0 and v2.3.

E.X:

mmMM_ATC_L2_MISC_CG:  0x064a(v2.0)  0x06cd(v2.3)
mmMMVM_L2_PROTECTION_FAULT_CNTL: 0x0688(v2.0) 0x0708(v2.3)
mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32: 0x072b(v2.0) 0x0940(v2.3)
mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32: 0x072c(v2.0) 0x0941(v2.3)
mmMMVM_INVALIDATE_ENG0_REQ: 0x06e3(v2.0) 0x0a01(v2.3)
mmMMVM_INVALIDATE_ENG0_ACK: 0x06f5(v2.0) 0x0a02(v2.3)
mmMMVM_CONTEXT0_CNTL: 0x06c0(v2.0) 0x0740(v2.3)
mmMMVM_L2_PROTECTION_FAULT_STATUS: 0x068c(v2.0) 0x070c(v2.3)
mmMMVM_L2_PROTECTION_FAULT_CNTL: 0x0688(v2.0) 0x0708(v2.3)
mmMM_ATC_L2_MISC_CG: 0x064a(v2.0) 0x06cd(v2.3)
mmDAGB0_CNTL_MISC2: 0x0071(v2.0) 0x0096(v2.3)
...

Continuing using the same file mmhub v2.0 is not good choice, it will
introduce a lot of checking with ASIC types. And also easy to introduce the
issues that offset not align, this kind of issues are really hard to find. Van
Gogh's mmhub vm invalidation is actually caused by the offset mismatch as well.

So it would like to create a new file rather than stick to re-use orignal mmhub
v2.0 here.

v2: add missed translate_further programming.
v3: sync with latest code
v4: add missing callbacks
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/Makefile

@@ -81,7 +81,7 @@ amdgpu-y += \
 	gmc_v7_0.o \
 	gmc_v8_0.o \
 	gfxhub_v1_0.o mmhub_v1_0.o gmc_v9_0.o gfxhub_v1_1.o mmhub_v9_4.o \
-	gfxhub_v2_0.o mmhub_v2_0.o gmc_v10_0.o gfxhub_v2_1.o
+	gfxhub_v2_0.o mmhub_v2_0.o gmc_v10_0.o gfxhub_v2_1.o mmhub_v2_3.o
 
 # add UMC block
 amdgpu-y += \

drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c

@@ -46,6 +46,7 @@
 #include "gfxhub_v2_0.h"
 #include "gfxhub_v2_1.h"
 #include "mmhub_v2_0.h"
+#include "mmhub_v2_3.h"
 #include "athub_v2_0.h"
 #include "athub_v2_1.h"
 
@@ -631,7 +632,14 @@ static void gmc_v10_0_set_umc_funcs(struct amdgpu_device *adev)
 
 static void gmc_v10_0_set_mmhub_funcs(struct amdgpu_device *adev)
 {
-	adev->mmhub.funcs = &mmhub_v2_0_funcs;
+	switch (adev->asic_type) {
+	case CHIP_VANGOGH:
+		adev->mmhub.funcs = &mmhub_v2_3_funcs;
+		break;
+	default:
+		adev->mmhub.funcs = &mmhub_v2_0_funcs;
+		break;
+	}
 }
 
 static void gmc_v10_0_set_gfxhub_funcs(struct amdgpu_device *adev)

drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.h

+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+#ifndef __MMHUB_V2_3_H__
+#define __MMHUB_V2_3_H__
+
+extern const struct amdgpu_mmhub_funcs mmhub_v2_3_funcs;
+
+#endif