Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1233 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
new file mode 100644
index 000000000..8b25940c1
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -0,0 +1,1233 @@
+/*
+ * 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.
+ *
+ */
+#include <linux/firmware.h>
+#include <drm/drm_cache.h>
+#include "amdgpu.h"
+#include "gmc_v9_0.h"
+#include "amdgpu_atomfirmware.h"
+
+#include "hdp/hdp_4_0_offset.h"
+#include "hdp/hdp_4_0_sh_mask.h"
+#include "gc/gc_9_0_sh_mask.h"
+#include "dce/dce_12_0_offset.h"
+#include "dce/dce_12_0_sh_mask.h"
+#include "vega10_enum.h"
+#include "mmhub/mmhub_1_0_offset.h"
+#include "athub/athub_1_0_offset.h"
+#include "oss/osssys_4_0_offset.h"
+
+#include "soc15.h"
+#include "soc15_common.h"
+#include "umc/umc_6_0_sh_mask.h"
+
+#include "gfxhub_v1_0.h"
+#include "mmhub_v1_0.h"
+
+#include "ivsrcid/vmc/irqsrcs_vmc_1_0.h"
+
+/* add these here since we already include dce12 headers and these are for DCN */
+#define mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION                                                          0x055d
+#define mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION_BASE_IDX                                                 2
+#define HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION__PRI_VIEWPORT_WIDTH__SHIFT                                        0x0
+#define HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION__PRI_VIEWPORT_HEIGHT__SHIFT                                       0x10
+#define HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION__PRI_VIEWPORT_WIDTH_MASK                                          0x00003FFFL
+#define HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION__PRI_VIEWPORT_HEIGHT_MASK                                         0x3FFF0000L
+
+/* XXX Move this macro to VEGA10 header file, which is like vid.h for VI.*/
+#define AMDGPU_NUM_OF_VMIDS			8
+
+static const u32 golden_settings_vega10_hdp[] =
+{
+	0xf64, 0x0fffffff, 0x00000000,
+	0xf65, 0x0fffffff, 0x00000000,
+	0xf66, 0x0fffffff, 0x00000000,
+	0xf67, 0x0fffffff, 0x00000000,
+	0xf68, 0x0fffffff, 0x00000000,
+	0xf6a, 0x0fffffff, 0x00000000,
+	0xf6b, 0x0fffffff, 0x00000000,
+	0xf6c, 0x0fffffff, 0x00000000,
+	0xf6d, 0x0fffffff, 0x00000000,
+	0xf6e, 0x0fffffff, 0x00000000,
+};
+
+static const struct soc15_reg_golden golden_settings_mmhub_1_0_0[] =
+{
+	SOC15_REG_GOLDEN_VALUE(MMHUB, 0, mmDAGB1_WRCLI2, 0x00000007, 0xfe5fe0fa),
+	SOC15_REG_GOLDEN_VALUE(MMHUB, 0, mmMMEA1_DRAM_WR_CLI2GRP_MAP0, 0x00000030, 0x55555565)
+};
+
+static const struct soc15_reg_golden golden_settings_athub_1_0_0[] =
+{
+	SOC15_REG_GOLDEN_VALUE(ATHUB, 0, mmRPB_ARB_CNTL, 0x0000ff00, 0x00000800),
+	SOC15_REG_GOLDEN_VALUE(ATHUB, 0, mmRPB_ARB_CNTL2, 0x00ff00ff, 0x00080008)
+};
+
+/* Ecc related register addresses, (BASE + reg offset) */
+/* Universal Memory Controller caps (may be fused). */
+/* UMCCH:UmcLocalCap */
+#define UMCLOCALCAPS_ADDR0	(0x00014306 + 0x00000000)
+#define UMCLOCALCAPS_ADDR1	(0x00014306 + 0x00000800)
+#define UMCLOCALCAPS_ADDR2	(0x00014306 + 0x00001000)
+#define UMCLOCALCAPS_ADDR3	(0x00014306 + 0x00001800)
+#define UMCLOCALCAPS_ADDR4	(0x00054306 + 0x00000000)
+#define UMCLOCALCAPS_ADDR5	(0x00054306 + 0x00000800)
+#define UMCLOCALCAPS_ADDR6	(0x00054306 + 0x00001000)
+#define UMCLOCALCAPS_ADDR7	(0x00054306 + 0x00001800)
+#define UMCLOCALCAPS_ADDR8	(0x00094306 + 0x00000000)
+#define UMCLOCALCAPS_ADDR9	(0x00094306 + 0x00000800)
+#define UMCLOCALCAPS_ADDR10	(0x00094306 + 0x00001000)
+#define UMCLOCALCAPS_ADDR11	(0x00094306 + 0x00001800)
+#define UMCLOCALCAPS_ADDR12	(0x000d4306 + 0x00000000)
+#define UMCLOCALCAPS_ADDR13	(0x000d4306 + 0x00000800)
+#define UMCLOCALCAPS_ADDR14	(0x000d4306 + 0x00001000)
+#define UMCLOCALCAPS_ADDR15	(0x000d4306 + 0x00001800)
+
+/* Universal Memory Controller Channel config. */
+/* UMCCH:UMC_CONFIG */
+#define UMCCH_UMC_CONFIG_ADDR0	(0x00014040 + 0x00000000)
+#define UMCCH_UMC_CONFIG_ADDR1	(0x00014040 + 0x00000800)
+#define UMCCH_UMC_CONFIG_ADDR2	(0x00014040 + 0x00001000)
+#define UMCCH_UMC_CONFIG_ADDR3	(0x00014040 + 0x00001800)
+#define UMCCH_UMC_CONFIG_ADDR4	(0x00054040 + 0x00000000)
+#define UMCCH_UMC_CONFIG_ADDR5	(0x00054040 + 0x00000800)
+#define UMCCH_UMC_CONFIG_ADDR6	(0x00054040 + 0x00001000)
+#define UMCCH_UMC_CONFIG_ADDR7	(0x00054040 + 0x00001800)
+#define UMCCH_UMC_CONFIG_ADDR8	(0x00094040 + 0x00000000)
+#define UMCCH_UMC_CONFIG_ADDR9	(0x00094040 + 0x00000800)
+#define UMCCH_UMC_CONFIG_ADDR10	(0x00094040 + 0x00001000)
+#define UMCCH_UMC_CONFIG_ADDR11	(0x00094040 + 0x00001800)
+#define UMCCH_UMC_CONFIG_ADDR12	(0x000d4040 + 0x00000000)
+#define UMCCH_UMC_CONFIG_ADDR13	(0x000d4040 + 0x00000800)
+#define UMCCH_UMC_CONFIG_ADDR14	(0x000d4040 + 0x00001000)
+#define UMCCH_UMC_CONFIG_ADDR15	(0x000d4040 + 0x00001800)
+
+/* Universal Memory Controller Channel Ecc config. */
+/* UMCCH:EccCtrl */
+#define UMCCH_ECCCTRL_ADDR0	(0x00014053 + 0x00000000)
+#define UMCCH_ECCCTRL_ADDR1	(0x00014053 + 0x00000800)
+#define UMCCH_ECCCTRL_ADDR2	(0x00014053 + 0x00001000)
+#define UMCCH_ECCCTRL_ADDR3	(0x00014053 + 0x00001800)
+#define UMCCH_ECCCTRL_ADDR4	(0x00054053 + 0x00000000)
+#define UMCCH_ECCCTRL_ADDR5	(0x00054053 + 0x00000800)
+#define UMCCH_ECCCTRL_ADDR6	(0x00054053 + 0x00001000)
+#define UMCCH_ECCCTRL_ADDR7	(0x00054053 + 0x00001800)
+#define UMCCH_ECCCTRL_ADDR8	(0x00094053 + 0x00000000)
+#define UMCCH_ECCCTRL_ADDR9	(0x00094053 + 0x00000800)
+#define UMCCH_ECCCTRL_ADDR10	(0x00094053 + 0x00001000)
+#define UMCCH_ECCCTRL_ADDR11	(0x00094053 + 0x00001800)
+#define UMCCH_ECCCTRL_ADDR12	(0x000d4053 + 0x00000000)
+#define UMCCH_ECCCTRL_ADDR13	(0x000d4053 + 0x00000800)
+#define UMCCH_ECCCTRL_ADDR14	(0x000d4053 + 0x00001000)
+#define UMCCH_ECCCTRL_ADDR15	(0x000d4053 + 0x00001800)
+
+static const uint32_t ecc_umclocalcap_addrs[] = {
+	UMCLOCALCAPS_ADDR0,
+	UMCLOCALCAPS_ADDR1,
+	UMCLOCALCAPS_ADDR2,
+	UMCLOCALCAPS_ADDR3,
+	UMCLOCALCAPS_ADDR4,
+	UMCLOCALCAPS_ADDR5,
+	UMCLOCALCAPS_ADDR6,
+	UMCLOCALCAPS_ADDR7,
+	UMCLOCALCAPS_ADDR8,
+	UMCLOCALCAPS_ADDR9,
+	UMCLOCALCAPS_ADDR10,
+	UMCLOCALCAPS_ADDR11,
+	UMCLOCALCAPS_ADDR12,
+	UMCLOCALCAPS_ADDR13,
+	UMCLOCALCAPS_ADDR14,
+	UMCLOCALCAPS_ADDR15,
+};
+
+static const uint32_t ecc_umcch_umc_config_addrs[] = {
+	UMCCH_UMC_CONFIG_ADDR0,
+	UMCCH_UMC_CONFIG_ADDR1,
+	UMCCH_UMC_CONFIG_ADDR2,
+	UMCCH_UMC_CONFIG_ADDR3,
+	UMCCH_UMC_CONFIG_ADDR4,
+	UMCCH_UMC_CONFIG_ADDR5,
+	UMCCH_UMC_CONFIG_ADDR6,
+	UMCCH_UMC_CONFIG_ADDR7,
+	UMCCH_UMC_CONFIG_ADDR8,
+	UMCCH_UMC_CONFIG_ADDR9,
+	UMCCH_UMC_CONFIG_ADDR10,
+	UMCCH_UMC_CONFIG_ADDR11,
+	UMCCH_UMC_CONFIG_ADDR12,
+	UMCCH_UMC_CONFIG_ADDR13,
+	UMCCH_UMC_CONFIG_ADDR14,
+	UMCCH_UMC_CONFIG_ADDR15,
+};
+
+static const uint32_t ecc_umcch_eccctrl_addrs[] = {
+	UMCCH_ECCCTRL_ADDR0,
+	UMCCH_ECCCTRL_ADDR1,
+	UMCCH_ECCCTRL_ADDR2,
+	UMCCH_ECCCTRL_ADDR3,
+	UMCCH_ECCCTRL_ADDR4,
+	UMCCH_ECCCTRL_ADDR5,
+	UMCCH_ECCCTRL_ADDR6,
+	UMCCH_ECCCTRL_ADDR7,
+	UMCCH_ECCCTRL_ADDR8,
+	UMCCH_ECCCTRL_ADDR9,
+	UMCCH_ECCCTRL_ADDR10,
+	UMCCH_ECCCTRL_ADDR11,
+	UMCCH_ECCCTRL_ADDR12,
+	UMCCH_ECCCTRL_ADDR13,
+	UMCCH_ECCCTRL_ADDR14,
+	UMCCH_ECCCTRL_ADDR15,
+};
+
+static int gmc_v9_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
+					struct amdgpu_irq_src *src,
+					unsigned type,
+					enum amdgpu_interrupt_state state)
+{
+	struct amdgpu_vmhub *hub;
+	u32 tmp, reg, bits, i, j;
+
+	bits = VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
+		VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
+		VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
+		VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
+		VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
+		VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
+		VM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK;
+
+	switch (state) {
+	case AMDGPU_IRQ_STATE_DISABLE:
+		for (j = 0; j < AMDGPU_MAX_VMHUBS; j++) {
+			hub = &adev->vmhub[j];
+			for (i = 0; i < 16; i++) {
+				reg = hub->vm_context0_cntl + i;
+				tmp = RREG32(reg);
+				tmp &= ~bits;
+				WREG32(reg, tmp);
+			}
+		}
+		break;
+	case AMDGPU_IRQ_STATE_ENABLE:
+		for (j = 0; j < AMDGPU_MAX_VMHUBS; j++) {
+			hub = &adev->vmhub[j];
+			for (i = 0; i < 16; i++) {
+				reg = hub->vm_context0_cntl + i;
+				tmp = RREG32(reg);
+				tmp |= bits;
+				WREG32(reg, tmp);
+			}
+		}
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev,
+				struct amdgpu_irq_src *source,
+				struct amdgpu_iv_entry *entry)
+{
+	struct amdgpu_vmhub *hub = &adev->vmhub[entry->vmid_src];
+	uint32_t status = 0;
+	u64 addr;
+
+	addr = (u64)entry->src_data[0] << 12;
+	addr |= ((u64)entry->src_data[1] & 0xf) << 44;
+
+	if (!amdgpu_sriov_vf(adev)) {
+		status = RREG32(hub->vm_l2_pro_fault_status);
+		WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1);
+	}
+
+	if (printk_ratelimit()) {
+		struct amdgpu_task_info task_info = { 0 };
+
+		amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
+
+		dev_err(adev->dev,
+			"[%s] VMC page fault (src_id:%u ring:%u vmid:%u pasid:%u, for process %s pid %d thread %s pid %d\n)\n",
+			entry->vmid_src ? "mmhub" : "gfxhub",
+			entry->src_id, entry->ring_id, entry->vmid,
+			entry->pasid, task_info.process_name, task_info.tgid,
+			task_info.task_name, task_info.pid);
+		dev_err(adev->dev, "  at address 0x%016llx from %d\n",
+			addr, entry->client_id);
+		if (!amdgpu_sriov_vf(adev))
+			dev_err(adev->dev,
+				"VM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
+				status);
+	}
+
+	return 0;
+}
+
+static const struct amdgpu_irq_src_funcs gmc_v9_0_irq_funcs = {
+	.set = gmc_v9_0_vm_fault_interrupt_state,
+	.process = gmc_v9_0_process_interrupt,
+};
+
+static void gmc_v9_0_set_irq_funcs(struct amdgpu_device *adev)
+{
+	adev->gmc.vm_fault.num_types = 1;
+	adev->gmc.vm_fault.funcs = &gmc_v9_0_irq_funcs;
+}
+
+static uint32_t gmc_v9_0_get_invalidate_req(unsigned int vmid)
+{
+	u32 req = 0;
+
+	/* invalidate using legacy mode on vmid*/
+	req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ,
+			    PER_VMID_INVALIDATE_REQ, 1 << vmid);
+	req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, 0);
+	req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1);
+	req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1);
+	req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1);
+	req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1);
+	req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1);
+	req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ,
+			    CLEAR_PROTECTION_FAULT_STATUS_ADDR,	0);
+
+	return req;
+}
+
+/*
+ * GART
+ * VMID 0 is the physical GPU addresses as used by the kernel.
+ * VMIDs 1-15 are used for userspace clients and are handled
+ * by the amdgpu vm/hsa code.
+ */
+
+/**
+ * gmc_v9_0_flush_gpu_tlb - gart tlb flush callback
+ *
+ * @adev: amdgpu_device pointer
+ * @vmid: vm instance to flush
+ *
+ * Flush the TLB for the requested page table.
+ */
+static void gmc_v9_0_flush_gpu_tlb(struct amdgpu_device *adev,
+					uint32_t vmid)
+{
+	/* Use register 17 for GART */
+	const unsigned eng = 17;
+	unsigned i, j;
+
+	spin_lock(&adev->gmc.invalidate_lock);
+
+	for (i = 0; i < AMDGPU_MAX_VMHUBS; ++i) {
+		struct amdgpu_vmhub *hub = &adev->vmhub[i];
+		u32 tmp = gmc_v9_0_get_invalidate_req(vmid);
+
+		WREG32_NO_KIQ(hub->vm_inv_eng0_req + eng, tmp);
+
+		/* Busy wait for ACK.*/
+		for (j = 0; j < 100; j++) {
+			tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack + eng);
+			tmp &= 1 << vmid;
+			if (tmp)
+				break;
+			cpu_relax();
+		}
+		if (j < 100)
+			continue;
+
+		/* Wait for ACK with a delay.*/
+		for (j = 0; j < adev->usec_timeout; j++) {
+			tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack + eng);
+			tmp &= 1 << vmid;
+			if (tmp)
+				break;
+			udelay(1);
+		}
+		if (j < adev->usec_timeout)
+			continue;
+
+		DRM_ERROR("Timeout waiting for VM flush ACK!\n");
+	}
+
+	spin_unlock(&adev->gmc.invalidate_lock);
+}
+
+static uint64_t gmc_v9_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
+					    unsigned vmid, uint64_t pd_addr)
+{
+	struct amdgpu_device *adev = ring->adev;
+	struct amdgpu_vmhub *hub = &adev->vmhub[ring->funcs->vmhub];
+	uint32_t req = gmc_v9_0_get_invalidate_req(vmid);
+	uint64_t flags = AMDGPU_PTE_VALID;
+	unsigned eng = ring->vm_inv_eng;
+
+	amdgpu_gmc_get_vm_pde(adev, -1, &pd_addr, &flags);
+	pd_addr |= flags;
+
+	amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_lo32 + (2 * vmid),
+			      lower_32_bits(pd_addr));
+
+	amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 + (2 * vmid),
+			      upper_32_bits(pd_addr));
+
+	amdgpu_ring_emit_reg_write_reg_wait(ring, hub->vm_inv_eng0_req + eng,
+					    hub->vm_inv_eng0_ack + eng,
+					    req, 1 << vmid);
+
+	return pd_addr;
+}
+
+static void gmc_v9_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid,
+					unsigned pasid)
+{
+	struct amdgpu_device *adev = ring->adev;
+	uint32_t reg;
+
+	if (ring->funcs->vmhub == AMDGPU_GFXHUB)
+		reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid;
+	else
+		reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT_MM) + vmid;
+
+	amdgpu_ring_emit_wreg(ring, reg, pasid);
+}
+
+/**
+ * gmc_v9_0_set_pte_pde - update the page tables using MMIO
+ *
+ * @adev: amdgpu_device pointer
+ * @cpu_pt_addr: cpu address of the page table
+ * @gpu_page_idx: entry in the page table to update
+ * @addr: dst addr to write into pte/pde
+ * @flags: access flags
+ *
+ * Update the page tables using the CPU.
+ */
+static int gmc_v9_0_set_pte_pde(struct amdgpu_device *adev, void *cpu_pt_addr,
+				uint32_t gpu_page_idx, uint64_t addr,
+				uint64_t flags)
+{
+	void __iomem *ptr = (void *)cpu_pt_addr;
+	uint64_t value;
+
+	/*
+	 * PTE format on VEGA 10:
+	 * 63:59 reserved
+	 * 58:57 mtype
+	 * 56 F
+	 * 55 L
+	 * 54 P
+	 * 53 SW
+	 * 52 T
+	 * 50:48 reserved
+	 * 47:12 4k physical page base address
+	 * 11:7 fragment
+	 * 6 write
+	 * 5 read
+	 * 4 exe
+	 * 3 Z
+	 * 2 snooped
+	 * 1 system
+	 * 0 valid
+	 *
+	 * PDE format on VEGA 10:
+	 * 63:59 block fragment size
+	 * 58:55 reserved
+	 * 54 P
+	 * 53:48 reserved
+	 * 47:6 physical base address of PD or PTE
+	 * 5:3 reserved
+	 * 2 C
+	 * 1 system
+	 * 0 valid
+	 */
+
+	/*
+	 * The following is for PTE only. GART does not have PDEs.
+	*/
+	value = addr & 0x0000FFFFFFFFF000ULL;
+	value |= flags;
+	writeq(value, ptr + (gpu_page_idx * 8));
+	return 0;
+}
+
+static uint64_t gmc_v9_0_get_vm_pte_flags(struct amdgpu_device *adev,
+						uint32_t flags)
+
+{
+	uint64_t pte_flag = 0;
+
+	if (flags & AMDGPU_VM_PAGE_EXECUTABLE)
+		pte_flag |= AMDGPU_PTE_EXECUTABLE;
+	if (flags & AMDGPU_VM_PAGE_READABLE)
+		pte_flag |= AMDGPU_PTE_READABLE;
+	if (flags & AMDGPU_VM_PAGE_WRITEABLE)
+		pte_flag |= AMDGPU_PTE_WRITEABLE;
+
+	switch (flags & AMDGPU_VM_MTYPE_MASK) {
+	case AMDGPU_VM_MTYPE_DEFAULT:
+		pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC);
+		break;
+	case AMDGPU_VM_MTYPE_NC:
+		pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC);
+		break;
+	case AMDGPU_VM_MTYPE_WC:
+		pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_WC);
+		break;
+	case AMDGPU_VM_MTYPE_CC:
+		pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_CC);
+		break;
+	case AMDGPU_VM_MTYPE_UC:
+		pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_UC);
+		break;
+	default:
+		pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC);
+		break;
+	}
+
+	if (flags & AMDGPU_VM_PAGE_PRT)
+		pte_flag |= AMDGPU_PTE_PRT;
+
+	return pte_flag;
+}
+
+static void gmc_v9_0_get_vm_pde(struct amdgpu_device *adev, int level,
+				uint64_t *addr, uint64_t *flags)
+{
+	if (!(*flags & AMDGPU_PDE_PTE))
+		*addr = adev->vm_manager.vram_base_offset + *addr -
+			adev->gmc.vram_start;
+	BUG_ON(*addr & 0xFFFF00000000003FULL);
+
+	if (!adev->gmc.translate_further)
+		return;
+
+	if (level == AMDGPU_VM_PDB1) {
+		/* Set the block fragment size */
+		if (!(*flags & AMDGPU_PDE_PTE))
+			*flags |= AMDGPU_PDE_BFS(0x9);
+
+	} else if (level == AMDGPU_VM_PDB0) {
+		if (*flags & AMDGPU_PDE_PTE)
+			*flags &= ~AMDGPU_PDE_PTE;
+		else
+			*flags |= AMDGPU_PTE_TF;
+	}
+}
+
+static const struct amdgpu_gmc_funcs gmc_v9_0_gmc_funcs = {
+	.flush_gpu_tlb = gmc_v9_0_flush_gpu_tlb,
+	.emit_flush_gpu_tlb = gmc_v9_0_emit_flush_gpu_tlb,
+	.emit_pasid_mapping = gmc_v9_0_emit_pasid_mapping,
+	.set_pte_pde = gmc_v9_0_set_pte_pde,
+	.get_vm_pte_flags = gmc_v9_0_get_vm_pte_flags,
+	.get_vm_pde = gmc_v9_0_get_vm_pde
+};
+
+static void gmc_v9_0_set_gmc_funcs(struct amdgpu_device *adev)
+{
+	if (adev->gmc.gmc_funcs == NULL)
+		adev->gmc.gmc_funcs = &gmc_v9_0_gmc_funcs;
+}
+
+static int gmc_v9_0_early_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	gmc_v9_0_set_gmc_funcs(adev);
+	gmc_v9_0_set_irq_funcs(adev);
+
+	adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
+	adev->gmc.shared_aperture_end =
+		adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
+	adev->gmc.private_aperture_start = 0x1000000000000000ULL;
+	adev->gmc.private_aperture_end =
+		adev->gmc.private_aperture_start + (4ULL << 30) - 1;
+
+	return 0;
+}
+
+static int gmc_v9_0_ecc_available(struct amdgpu_device *adev)
+{
+	uint32_t reg_val;
+	uint32_t reg_addr;
+	uint32_t field_val;
+	size_t i;
+	uint32_t fv2;
+	size_t lost_sheep;
+
+	DRM_DEBUG("ecc: gmc_v9_0_ecc_available()\n");
+
+	lost_sheep = 0;
+	for (i = 0; i < ARRAY_SIZE(ecc_umclocalcap_addrs); ++i) {
+		reg_addr = ecc_umclocalcap_addrs[i];
+		DRM_DEBUG("ecc: "
+			  "UMCCH_UmcLocalCap[%zu]: reg_addr: 0x%08x\n",
+			  i, reg_addr);
+		reg_val = RREG32(reg_addr);
+		field_val = REG_GET_FIELD(reg_val, UMCCH0_0_UmcLocalCap,
+					  EccDis);
+		DRM_DEBUG("ecc: "
+			  "reg_val: 0x%08x, "
+			  "EccDis: 0x%08x, ",
+			  reg_val, field_val);
+		if (field_val) {
+			DRM_ERROR("ecc: UmcLocalCap:EccDis is set.\n");
+			++lost_sheep;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(ecc_umcch_umc_config_addrs); ++i) {
+		reg_addr = ecc_umcch_umc_config_addrs[i];
+		DRM_DEBUG("ecc: "
+			  "UMCCH0_0_UMC_CONFIG[%zu]: reg_addr: 0x%08x",
+			  i, reg_addr);
+		reg_val = RREG32(reg_addr);
+		field_val = REG_GET_FIELD(reg_val, UMCCH0_0_UMC_CONFIG,
+					  DramReady);
+		DRM_DEBUG("ecc: "
+			  "reg_val: 0x%08x, "
+			  "DramReady: 0x%08x\n",
+			  reg_val, field_val);
+
+		if (!field_val) {
+			DRM_ERROR("ecc: UMC_CONFIG:DramReady is not set.\n");
+			++lost_sheep;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(ecc_umcch_eccctrl_addrs); ++i) {
+		reg_addr = ecc_umcch_eccctrl_addrs[i];
+		DRM_DEBUG("ecc: "
+			  "UMCCH_EccCtrl[%zu]: reg_addr: 0x%08x, ",
+			  i, reg_addr);
+		reg_val = RREG32(reg_addr);
+		field_val = REG_GET_FIELD(reg_val, UMCCH0_0_EccCtrl,
+					  WrEccEn);
+		fv2 = REG_GET_FIELD(reg_val, UMCCH0_0_EccCtrl,
+				    RdEccEn);
+		DRM_DEBUG("ecc: "
+			  "reg_val: 0x%08x, "
+			  "WrEccEn: 0x%08x, "
+			  "RdEccEn: 0x%08x\n",
+			  reg_val, field_val, fv2);
+
+		if (!field_val) {
+			DRM_DEBUG("ecc: WrEccEn is not set\n");
+			++lost_sheep;
+		}
+		if (!fv2) {
+			DRM_DEBUG("ecc: RdEccEn is not set\n");
+			++lost_sheep;
+		}
+	}
+
+	DRM_DEBUG("ecc: lost_sheep: %zu\n", lost_sheep);
+	return lost_sheep == 0;
+}
+
+static int gmc_v9_0_late_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	/*
+	 * The latest engine allocation on gfx9 is:
+	 * Engine 0, 1: idle
+	 * Engine 2, 3: firmware
+	 * Engine 4~13: amdgpu ring, subject to change when ring number changes
+	 * Engine 14~15: idle
+	 * Engine 16: kfd tlb invalidation
+	 * Engine 17: Gart flushes
+	 */
+	unsigned vm_inv_eng[AMDGPU_MAX_VMHUBS] = { 4, 4 };
+	unsigned i;
+	int r;
+
+	/*
+	 * TODO - Uncomment once GART corruption issue is fixed.
+	 */
+	/* amdgpu_bo_late_init(adev); */
+
+	for(i = 0; i < adev->num_rings; ++i) {
+		struct amdgpu_ring *ring = adev->rings[i];
+		unsigned vmhub = ring->funcs->vmhub;
+
+		ring->vm_inv_eng = vm_inv_eng[vmhub]++;
+		dev_info(adev->dev, "ring %u(%s) uses VM inv eng %u on hub %u\n",
+			 ring->idx, ring->name, ring->vm_inv_eng,
+			 ring->funcs->vmhub);
+	}
+
+	/* Engine 16 is used for KFD and 17 for GART flushes */
+	for(i = 0; i < AMDGPU_MAX_VMHUBS; ++i)
+		BUG_ON(vm_inv_eng[i] > 16);
+
+	if (adev->asic_type == CHIP_VEGA10 && !amdgpu_sriov_vf(adev)) {
+		r = gmc_v9_0_ecc_available(adev);
+		if (r == 1) {
+			DRM_INFO("ECC is active.\n");
+		} else if (r == 0) {
+			DRM_INFO("ECC is not present.\n");
+			adev->df_funcs->enable_ecc_force_par_wr_rmw(adev, false);
+		} else {
+			DRM_ERROR("gmc_v9_0_ecc_available() failed. r: %d\n", r);
+			return r;
+		}
+	}
+
+	return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
+}
+
+static void gmc_v9_0_vram_gtt_location(struct amdgpu_device *adev,
+					struct amdgpu_gmc *mc)
+{
+	u64 base = 0;
+	if (!amdgpu_sriov_vf(adev))
+		base = mmhub_v1_0_get_fb_location(adev);
+	amdgpu_device_vram_location(adev, &adev->gmc, base);
+	amdgpu_device_gart_location(adev, mc);
+	/* base offset of vram pages */
+	adev->vm_manager.vram_base_offset = gfxhub_v1_0_get_mc_fb_offset(adev);
+}
+
+/**
+ * gmc_v9_0_mc_init - initialize the memory controller driver params
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Look up the amount of vram, vram width, and decide how to place
+ * vram and gart within the GPU's physical address space.
+ * Returns 0 for success.
+ */
+static int gmc_v9_0_mc_init(struct amdgpu_device *adev)
+{
+	int chansize, numchan;
+	int r;
+
+	if (amdgpu_emu_mode != 1)
+		adev->gmc.vram_width = amdgpu_atomfirmware_get_vram_width(adev);
+	if (!adev->gmc.vram_width) {
+		/* hbm memory channel size */
+		if (adev->flags & AMD_IS_APU)
+			chansize = 64;
+		else
+			chansize = 128;
+
+		numchan = adev->df_funcs->get_hbm_channel_number(adev);
+		adev->gmc.vram_width = numchan * chansize;
+	}
+
+	/* size in MB on si */
+	adev->gmc.mc_vram_size =
+		adev->nbio_funcs->get_memsize(adev) * 1024ULL * 1024ULL;
+	adev->gmc.real_vram_size = adev->gmc.mc_vram_size;
+
+	if (!(adev->flags & AMD_IS_APU)) {
+		r = amdgpu_device_resize_fb_bar(adev);
+		if (r)
+			return r;
+	}
+	adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
+	adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
+
+#ifdef CONFIG_X86_64
+	if (adev->flags & AMD_IS_APU) {
+		adev->gmc.aper_base = gfxhub_v1_0_get_mc_fb_offset(adev);
+		adev->gmc.aper_size = adev->gmc.real_vram_size;
+	}
+#endif
+	/* In case the PCI BAR is larger than the actual amount of vram */
+	adev->gmc.visible_vram_size = adev->gmc.aper_size;
+	if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
+		adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
+
+	/* set the gart size */
+	if (amdgpu_gart_size == -1) {
+		switch (adev->asic_type) {
+		case CHIP_VEGA10:  /* all engines support GPUVM */
+		case CHIP_VEGA12:  /* all engines support GPUVM */
+		case CHIP_VEGA20:
+		default:
+			adev->gmc.gart_size = 512ULL << 20;
+			break;
+		case CHIP_RAVEN:   /* DCE SG support */
+			adev->gmc.gart_size = 1024ULL << 20;
+			break;
+		}
+	} else {
+		adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
+	}
+
+	gmc_v9_0_vram_gtt_location(adev, &adev->gmc);
+
+	return 0;
+}
+
+static int gmc_v9_0_gart_init(struct amdgpu_device *adev)
+{
+	int r;
+
+	if (adev->gart.robj) {
+		WARN(1, "VEGA10 PCIE GART already initialized\n");
+		return 0;
+	}
+	/* Initialize common gart structure */
+	r = amdgpu_gart_init(adev);
+	if (r)
+		return r;
+	adev->gart.table_size = adev->gart.num_gpu_pages * 8;
+	adev->gart.gart_pte_flags = AMDGPU_PTE_MTYPE(MTYPE_UC) |
+				 AMDGPU_PTE_EXECUTABLE;
+	return amdgpu_gart_table_vram_alloc(adev);
+}
+
+static unsigned gmc_v9_0_get_vbios_fb_size(struct amdgpu_device *adev)
+{
+#if 0
+	u32 d1vga_control = RREG32_SOC15(DCE, 0, mmD1VGA_CONTROL);
+#endif
+	unsigned size;
+
+	/*
+	 * TODO Remove once GART corruption is resolved
+	 * Check related code in gmc_v9_0_sw_fini
+	 * */
+	size = 9 * 1024 * 1024;
+
+#if 0
+	if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
+		size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */
+	} else {
+		u32 viewport;
+
+		switch (adev->asic_type) {
+		case CHIP_RAVEN:
+			viewport = RREG32_SOC15(DCE, 0, mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION);
+			size = (REG_GET_FIELD(viewport,
+					      HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) *
+				REG_GET_FIELD(viewport,
+					      HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_WIDTH) *
+				4);
+			break;
+		case CHIP_VEGA10:
+		case CHIP_VEGA12:
+		default:
+			viewport = RREG32_SOC15(DCE, 0, mmSCL0_VIEWPORT_SIZE);
+			size = (REG_GET_FIELD(viewport, SCL0_VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
+				REG_GET_FIELD(viewport, SCL0_VIEWPORT_SIZE, VIEWPORT_WIDTH) *
+				4);
+			break;
+		}
+	}
+	/* return 0 if the pre-OS buffer uses up most of vram */
+	if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024))
+		return 0;
+
+#endif
+	return size;
+}
+
+static int gmc_v9_0_sw_init(void *handle)
+{
+	int r;
+	int dma_bits;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	gfxhub_v1_0_init(adev);
+	mmhub_v1_0_init(adev);
+
+	spin_lock_init(&adev->gmc.invalidate_lock);
+
+	adev->gmc.vram_type = amdgpu_atomfirmware_get_vram_type(adev);
+	switch (adev->asic_type) {
+	case CHIP_RAVEN:
+		if (adev->rev_id == 0x0 || adev->rev_id == 0x1) {
+			amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
+		} else {
+			/* vm_size is 128TB + 512GB for legacy 3-level page support */
+			amdgpu_vm_adjust_size(adev, 128 * 1024 + 512, 9, 2, 48);
+			adev->gmc.translate_further =
+				adev->vm_manager.num_level > 1;
+		}
+		break;
+	case CHIP_VEGA10:
+	case CHIP_VEGA12:
+	case CHIP_VEGA20:
+		/*
+		 * To fulfill 4-level page support,
+		 * vm size is 256TB (48bit), maximum size of Vega10,
+		 * block size 512 (9bit)
+		 */
+		amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
+		break;
+	default:
+		break;
+	}
+
+	/* This interrupt is VMC page fault.*/
+	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VMC, VMC_1_0__SRCID__VM_FAULT,
+				&adev->gmc.vm_fault);
+	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_UTCL2, UTCL2_1_0__SRCID__FAULT,
+				&adev->gmc.vm_fault);
+
+	if (r)
+		return r;
+
+	/* Set the internal MC address mask
+	 * This is the max address of the GPU's
+	 * internal address space.
+	 */
+	adev->gmc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */
+
+	/* set DMA mask + need_dma32 flags.
+	 * PCIE - can handle 44-bits.
+	 * IGP - can handle 44-bits
+	 * PCI - dma32 for legacy pci gart, 44 bits on vega10
+	 */
+	adev->need_dma32 = false;
+	dma_bits = adev->need_dma32 ? 32 : 44;
+	r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
+	if (r) {
+		adev->need_dma32 = true;
+		dma_bits = 32;
+		printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
+	}
+	r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
+	if (r) {
+		pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
+		printk(KERN_WARNING "amdgpu: No coherent DMA available.\n");
+	}
+	adev->need_swiotlb = drm_get_max_iomem() > ((u64)1 << dma_bits);
+
+	r = gmc_v9_0_mc_init(adev);
+	if (r)
+		return r;
+
+	adev->gmc.stolen_size = gmc_v9_0_get_vbios_fb_size(adev);
+
+	/* Memory manager */
+	r = amdgpu_bo_init(adev);
+	if (r)
+		return r;
+
+	r = gmc_v9_0_gart_init(adev);
+	if (r)
+		return r;
+
+	/*
+	 * number of VMs
+	 * VMID 0 is reserved for System
+	 * amdgpu graphics/compute will use VMIDs 1-7
+	 * amdkfd will use VMIDs 8-15
+	 */
+	adev->vm_manager.id_mgr[AMDGPU_GFXHUB].num_ids = AMDGPU_NUM_OF_VMIDS;
+	adev->vm_manager.id_mgr[AMDGPU_MMHUB].num_ids = AMDGPU_NUM_OF_VMIDS;
+
+	amdgpu_vm_manager_init(adev);
+
+	return 0;
+}
+
+static int gmc_v9_0_sw_fini(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	amdgpu_gem_force_release(adev);
+	amdgpu_vm_manager_fini(adev);
+
+	/*
+	* TODO:
+	* Currently there is a bug where some memory client outside
+	* of the driver writes to first 8M of VRAM on S3 resume,
+	* this overrides GART which by default gets placed in first 8M and
+	* causes VM_FAULTS once GTT is accessed.
+	* Keep the stolen memory reservation until the while this is not solved.
+	* Also check code in gmc_v9_0_get_vbios_fb_size and gmc_v9_0_late_init
+	*/
+	amdgpu_bo_free_kernel(&adev->stolen_vga_memory, NULL, NULL);
+
+	amdgpu_gart_table_vram_free(adev);
+	amdgpu_bo_fini(adev);
+	amdgpu_gart_fini(adev);
+
+	return 0;
+}
+
+static void gmc_v9_0_init_golden_registers(struct amdgpu_device *adev)
+{
+
+	switch (adev->asic_type) {
+	case CHIP_VEGA10:
+	case CHIP_VEGA20:
+		soc15_program_register_sequence(adev,
+						golden_settings_mmhub_1_0_0,
+						ARRAY_SIZE(golden_settings_mmhub_1_0_0));
+		soc15_program_register_sequence(adev,
+						golden_settings_athub_1_0_0,
+						ARRAY_SIZE(golden_settings_athub_1_0_0));
+		break;
+	case CHIP_VEGA12:
+		break;
+	case CHIP_RAVEN:
+		soc15_program_register_sequence(adev,
+						golden_settings_athub_1_0_0,
+						ARRAY_SIZE(golden_settings_athub_1_0_0));
+		break;
+	default:
+		break;
+	}
+}
+
+/**
+ * gmc_v9_0_restore_registers - restores regs
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * This restores register values, saved at suspend.
+ */
+static void gmc_v9_0_restore_registers(struct amdgpu_device *adev)
+{
+	if (adev->asic_type == CHIP_RAVEN)
+		WREG32(mmDCHUBBUB_SDPIF_MMIO_CNTRL_0, adev->gmc.sdpif_register);
+}
+
+/**
+ * gmc_v9_0_gart_enable - gart enable
+ *
+ * @adev: amdgpu_device pointer
+ */
+static int gmc_v9_0_gart_enable(struct amdgpu_device *adev)
+{
+	int r;
+	bool value;
+	u32 tmp;
+
+	amdgpu_device_program_register_sequence(adev,
+						golden_settings_vega10_hdp,
+						ARRAY_SIZE(golden_settings_vega10_hdp));
+
+	if (adev->gart.robj == NULL) {
+		dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
+		return -EINVAL;
+	}
+	r = amdgpu_gart_table_vram_pin(adev);
+	if (r)
+		return r;
+
+	switch (adev->asic_type) {
+	case CHIP_RAVEN:
+		mmhub_v1_0_initialize_power_gating(adev);
+		mmhub_v1_0_update_power_gating(adev, true);
+		break;
+	default:
+		break;
+	}
+
+	r = gfxhub_v1_0_gart_enable(adev);
+	if (r)
+		return r;
+
+	r = mmhub_v1_0_gart_enable(adev);
+	if (r)
+		return r;
+
+	WREG32_FIELD15(HDP, 0, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1);
+
+	tmp = RREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL);
+	WREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL, tmp);
+
+	WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE, (adev->gmc.vram_start >> 8));
+	WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE_HI, (adev->gmc.vram_start >> 40));
+
+	/* After HDP is initialized, flush HDP.*/
+	adev->nbio_funcs->hdp_flush(adev, NULL);
+
+	if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
+		value = false;
+	else
+		value = true;
+
+	gfxhub_v1_0_set_fault_enable_default(adev, value);
+	mmhub_v1_0_set_fault_enable_default(adev, value);
+	gmc_v9_0_flush_gpu_tlb(adev, 0);
+
+	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
+		 (unsigned)(adev->gmc.gart_size >> 20),
+		 (unsigned long long)adev->gart.table_addr);
+	adev->gart.ready = true;
+	return 0;
+}
+
+static int gmc_v9_0_hw_init(void *handle)
+{
+	int r;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	/* The sequence of these two function calls matters.*/
+	gmc_v9_0_init_golden_registers(adev);
+
+	if (adev->mode_info.num_crtc) {
+		/* Lockout access through VGA aperture*/
+		WREG32_FIELD15(DCE, 0, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
+
+		/* disable VGA render */
+		WREG32_FIELD15(DCE, 0, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
+	}
+
+	r = gmc_v9_0_gart_enable(adev);
+
+	return r;
+}
+
+/**
+ * gmc_v9_0_save_registers - saves regs
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * This saves potential register values that should be
+ * restored upon resume
+ */
+static void gmc_v9_0_save_registers(struct amdgpu_device *adev)
+{
+	if (adev->asic_type == CHIP_RAVEN)
+		adev->gmc.sdpif_register = RREG32(mmDCHUBBUB_SDPIF_MMIO_CNTRL_0);
+}
+
+/**
+ * gmc_v9_0_gart_disable - gart disable
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * This disables all VM page table.
+ */
+static void gmc_v9_0_gart_disable(struct amdgpu_device *adev)
+{
+	gfxhub_v1_0_gart_disable(adev);
+	mmhub_v1_0_gart_disable(adev);
+	amdgpu_gart_table_vram_unpin(adev);
+}
+
+static int gmc_v9_0_hw_fini(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	if (amdgpu_sriov_vf(adev)) {
+		/* full access mode, so don't touch any GMC register */
+		DRM_DEBUG("For SRIOV client, shouldn't do anything.\n");
+		return 0;
+	}
+
+	amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
+	gmc_v9_0_gart_disable(adev);
+
+	return 0;
+}
+
+static int gmc_v9_0_suspend(void *handle)
+{
+	int r;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	r = gmc_v9_0_hw_fini(adev);
+	if (r)
+		return r;
+
+	gmc_v9_0_save_registers(adev);
+
+	return 0;
+}
+
+static int gmc_v9_0_resume(void *handle)
+{
+	int r;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	gmc_v9_0_restore_registers(adev);
+	r = gmc_v9_0_hw_init(adev);
+	if (r)
+		return r;
+
+	amdgpu_vmid_reset_all(adev);
+
+	return 0;
+}
+
+static bool gmc_v9_0_is_idle(void *handle)
+{
+	/* MC is always ready in GMC v9.*/
+	return true;
+}
+
+static int gmc_v9_0_wait_for_idle(void *handle)
+{
+	/* There is no need to wait for MC idle in GMC v9.*/
+	return 0;
+}
+
+static int gmc_v9_0_soft_reset(void *handle)
+{
+	/* XXX for emulation.*/
+	return 0;
+}
+
+static int gmc_v9_0_set_clockgating_state(void *handle,
+					enum amd_clockgating_state state)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	return mmhub_v1_0_set_clockgating(adev, state);
+}
+
+static void gmc_v9_0_get_clockgating_state(void *handle, u32 *flags)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	mmhub_v1_0_get_clockgating(adev, flags);
+}
+
+static int gmc_v9_0_set_powergating_state(void *handle,
+					enum amd_powergating_state state)
+{
+	return 0;
+}
+
+const struct amd_ip_funcs gmc_v9_0_ip_funcs = {
+	.name = "gmc_v9_0",
+	.early_init = gmc_v9_0_early_init,
+	.late_init = gmc_v9_0_late_init,
+	.sw_init = gmc_v9_0_sw_init,
+	.sw_fini = gmc_v9_0_sw_fini,
+	.hw_init = gmc_v9_0_hw_init,
+	.hw_fini = gmc_v9_0_hw_fini,
+	.suspend = gmc_v9_0_suspend,
+	.resume = gmc_v9_0_resume,
+	.is_idle = gmc_v9_0_is_idle,
+	.wait_for_idle = gmc_v9_0_wait_for_idle,
+	.soft_reset = gmc_v9_0_soft_reset,
+	.set_clockgating_state = gmc_v9_0_set_clockgating_state,
+	.set_powergating_state = gmc_v9_0_set_powergating_state,
+	.get_clockgating_state = gmc_v9_0_get_clockgating_state,
+};
+
+const struct amdgpu_ip_block_version gmc_v9_0_ip_block =
+{
+	.type = AMD_IP_BLOCK_TYPE_GMC,
+	.major = 9,
+	.minor = 0,
+	.rev = 0,
+	.funcs = &gmc_v9_0_ip_funcs,
+};