drm/amdgpu: Add GMC 9.0 support (v2)

On SOC-15 parts, the GMC (Graphics Memory Controller) consists
of two hubs: GFX (graphics and compute) and MM (sdma, uvd, vce).

v2: drop sdma from Makefile, fix duplicate return statement.
Signed-off-by: Alex Xie <AlexBin.Xie@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

@@ -39,7 +39,8 @@ amdgpu-y += \
 # add GMC block
 amdgpu-y += \
 	gmc_v7_0.o \
-	gmc_v8_0.o
+	gmc_v8_0.o \
+	gfxhub_v1_0.o mmhub_v1_0.o gmc_v9_0.o
 
 # add IH block
 amdgpu-y += \

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

@@ -121,6 +121,11 @@ extern int amdgpu_param_buf_per_se;
 /* max number of IP instances */
 #define AMDGPU_MAX_SDMA_INSTANCES		2
 
+/* max number of VMHUB */
+#define AMDGPU_MAX_VMHUBS			2
+#define AMDGPU_MMHUB				0
+#define AMDGPU_GFXHUB				1
+
 /* hardcode that limit for now */
 #define AMDGPU_VA_RESERVED_SIZE			(8 << 20)
 
@@ -308,6 +313,12 @@ struct amdgpu_gart_funcs {
 				     uint32_t flags);
 };
 
+/* provided by the mc block */
+struct amdgpu_mc_funcs {
+	/* adjust mc addr in fb for APU case */
+	u64 (*adjust_mc_addr)(struct amdgpu_device *adev, u64 addr);
+};
+
 /* provided by the ih block */
 struct amdgpu_ih_funcs {
 	/* ring read/write ptr handling, called from interrupt context */
@@ -556,6 +567,21 @@ int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset,
 		     dma_addr_t *dma_addr, uint64_t flags);
 int amdgpu_ttm_recover_gart(struct amdgpu_device *adev);
 
+/*
+ * VMHUB structures, functions & helpers
+ */
+struct amdgpu_vmhub {
+	uint32_t	ctx0_ptb_addr_lo32;
+	uint32_t	ctx0_ptb_addr_hi32;
+	uint32_t	vm_inv_eng0_req;
+	uint32_t	vm_inv_eng0_ack;
+	uint32_t	vm_context0_cntl;
+	uint32_t	vm_l2_pro_fault_status;
+	uint32_t	vm_l2_pro_fault_cntl;
+	uint32_t	(*get_invalidate_req)(unsigned int vm_id);
+	uint32_t	(*get_vm_protection_bits)(void);
+};
+
 /*
  * GPU MC structures, functions & helpers
  */
@@ -589,6 +615,9 @@ struct amdgpu_mc {
 	u64					shared_aperture_end;
 	u64					private_aperture_start;
 	u64					private_aperture_end;
+	/* protects concurrent invalidation */
+	spinlock_t		invalidate_lock;
+	const struct amdgpu_mc_funcs *mc_funcs;
 };
 
 /*
@@ -1473,6 +1502,7 @@ struct amdgpu_device {
 	struct amdgpu_gart		gart;
 	struct amdgpu_dummy_page	dummy_page;
 	struct amdgpu_vm_manager	vm_manager;
+	struct amdgpu_vmhub             vmhub[AMDGPU_MAX_VMHUBS];
 
 	/* memory management */
 	struct amdgpu_mman		mman;

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

@@ -447,6 +447,16 @@ static bool amdgpu_vm_ring_has_compute_vm_bug(struct amdgpu_ring *ring)
 	return false;
 }
 
+static u64 amdgpu_vm_adjust_mc_addr(struct amdgpu_device *adev, u64 mc_addr)
+{
+	u64 addr = mc_addr;
+
+	if (adev->mc.mc_funcs && adev->mc.mc_funcs->adjust_mc_addr)
+		addr = adev->mc.mc_funcs->adjust_mc_addr(adev, addr);
+
+	return addr;
+}
+
 /**
  * amdgpu_vm_flush - hardware flush the vm
  *
@@ -477,9 +487,10 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job)
 	if (ring->funcs->emit_vm_flush && (job->vm_needs_flush ||
 	    amdgpu_vm_is_gpu_reset(adev, id))) {
 		struct dma_fence *fence;
+		u64 pd_addr = amdgpu_vm_adjust_mc_addr(adev, job->vm_pd_addr);
 
-		trace_amdgpu_vm_flush(job->vm_pd_addr, ring->idx, job->vm_id);
-		amdgpu_ring_emit_vm_flush(ring, job->vm_id, job->vm_pd_addr);
+		trace_amdgpu_vm_flush(pd_addr, ring->idx, job->vm_id);
+		amdgpu_ring_emit_vm_flush(ring, job->vm_id, pd_addr);
 
 		r = amdgpu_fence_emit(ring, &fence);
 		if (r)
@@ -715,15 +726,18 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
 		    (count == AMDGPU_VM_MAX_UPDATE_SIZE)) {
 
 			if (count) {
+				uint64_t pt_addr =
+					amdgpu_vm_adjust_mc_addr(adev, last_pt);
+
 				if (shadow)
 					amdgpu_vm_do_set_ptes(&params,
 							      last_shadow,
-							      last_pt, count,
+							      pt_addr, count,
 							      incr,
 							      AMDGPU_PTE_VALID);
 
 				amdgpu_vm_do_set_ptes(&params, last_pde,
-						      last_pt, count, incr,
+						      pt_addr, count, incr,
 						      AMDGPU_PTE_VALID);
 			}
 
@@ -737,11 +751,13 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
 	}
 
 	if (count) {
+		uint64_t pt_addr = amdgpu_vm_adjust_mc_addr(adev, last_pt);
+
 		if (vm->page_directory->shadow)
-			amdgpu_vm_do_set_ptes(&params, last_shadow, last_pt,
+			amdgpu_vm_do_set_ptes(&params, last_shadow, pt_addr,
 					      count, incr, AMDGPU_PTE_VALID);
 
-		amdgpu_vm_do_set_ptes(&params, last_pde, last_pt,
+		amdgpu_vm_do_set_ptes(&params, last_pde, pt_addr,
 				      count, incr, AMDGPU_PTE_VALID);
 	}
 

drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.h

+/*
+ * Copyright 2016 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 __GFXHUB_V1_0_H__
+#define __GFXHUB_V1_0_H__
+
+int gfxhub_v1_0_gart_enable(struct amdgpu_device *adev);
+void gfxhub_v1_0_gart_disable(struct amdgpu_device *adev);
+void gfxhub_v1_0_set_fault_enable_default(struct amdgpu_device *adev,
+					  bool value);
+
+extern const struct amd_ip_funcs gfxhub_v1_0_ip_funcs;
+extern const struct amdgpu_ip_block_version gfxhub_v1_0_ip_block;
+
+#endif

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.h

+/*
+ * Copyright 2016 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 __GMC_V9_0_H__
+#define __GMC_V9_0_H__
+
+extern const struct amd_ip_funcs gmc_v9_0_ip_funcs;
+extern const struct amdgpu_ip_block_version gmc_v9_0_ip_block;
+
+#endif

drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.h

+/*
+ * Copyright 2016 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_V1_0_H__
+#define __MMHUB_V1_0_H__
+
+u64 mmhub_v1_0_get_fb_location(struct amdgpu_device *adev);
+int mmhub_v1_0_gart_enable(struct amdgpu_device *adev);
+void mmhub_v1_0_gart_disable(struct amdgpu_device *adev);
+void mmhub_v1_0_set_fault_enable_default(struct amdgpu_device *adev,
+					 bool value);
+
+extern const struct amd_ip_funcs mmhub_v1_0_ip_funcs;
+extern const struct amdgpu_ip_block_version mmhub_v1_0_ip_block;
+
+#endif

drivers/gpu/drm/amd/include/amd_shared.h

@@ -74,6 +74,8 @@ enum amd_ip_block_type {
 	AMD_IP_BLOCK_TYPE_UVD,
 	AMD_IP_BLOCK_TYPE_VCE,
 	AMD_IP_BLOCK_TYPE_ACP,
+	AMD_IP_BLOCK_TYPE_GFXHUB,
+	AMD_IP_BLOCK_TYPE_MMHUB
 };
 
 enum amd_clockgating_state {