Adding upstream version 6.1.76.upstream/6.1.76

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

1 files changed, 6189 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
new file mode 100644
index 000000000..a5352e5e2
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -0,0 +1,6189 @@
+/*
+ * Copyright 2008 Advanced Micro Devices, Inc.
+ * Copyright 2008 Red Hat Inc.
+ * Copyright 2009 Jerome Glisse.
+ *
+ * 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.
+ *
+ * Authors: Dave Airlie
+ *          Alex Deucher
+ *          Jerome Glisse
+ */
+#include <linux/power_supply.h>
+#include <linux/kthread.h>
+#include <linux/module.h>
+#include <linux/console.h>
+#include <linux/slab.h>
+#include <linux/iommu.h>
+#include <linux/pci.h>
+#include <linux/devcoredump.h>
+#include <generated/utsrelease.h>
+#include <linux/pci-p2pdma.h>
+#include <linux/apple-gmux.h>
+
+#include <drm/drm_aperture.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/amdgpu_drm.h>
+#include <linux/device.h>
+#include <linux/vgaarb.h>
+#include <linux/vga_switcheroo.h>
+#include <linux/efi.h>
+#include "amdgpu.h"
+#include "amdgpu_trace.h"
+#include "amdgpu_i2c.h"
+#include "atom.h"
+#include "amdgpu_atombios.h"
+#include "amdgpu_atomfirmware.h"
+#include "amd_pcie.h"
+#ifdef CONFIG_DRM_AMDGPU_SI
+#include "si.h"
+#endif
+#ifdef CONFIG_DRM_AMDGPU_CIK
+#include "cik.h"
+#endif
+#include "vi.h"
+#include "soc15.h"
+#include "nv.h"
+#include "bif/bif_4_1_d.h"
+#include <linux/firmware.h>
+#include "amdgpu_vf_error.h"
+
+#include "amdgpu_amdkfd.h"
+#include "amdgpu_pm.h"
+
+#include "amdgpu_xgmi.h"
+#include "amdgpu_ras.h"
+#include "amdgpu_pmu.h"
+#include "amdgpu_fru_eeprom.h"
+#include "amdgpu_reset.h"
+
+#include <linux/suspend.h>
+#include <drm/task_barrier.h>
+#include <linux/pm_runtime.h>
+
+#include <drm/drm_drv.h>
+
+#if IS_ENABLED(CONFIG_X86)
+#include <asm/intel-family.h>
+#endif
+
+MODULE_FIRMWARE("amdgpu/vega10_gpu_info.bin");
+MODULE_FIRMWARE("amdgpu/vega12_gpu_info.bin");
+MODULE_FIRMWARE("amdgpu/raven_gpu_info.bin");
+MODULE_FIRMWARE("amdgpu/picasso_gpu_info.bin");
+MODULE_FIRMWARE("amdgpu/raven2_gpu_info.bin");
+MODULE_FIRMWARE("amdgpu/arcturus_gpu_info.bin");
+MODULE_FIRMWARE("amdgpu/navi12_gpu_info.bin");
+
+#define AMDGPU_RESUME_MS		2000
+#define AMDGPU_MAX_RETRY_LIMIT		2
+#define AMDGPU_RETRY_SRIOV_RESET(r) ((r) == -EBUSY || (r) == -ETIMEDOUT || (r) == -EINVAL)
+
+static const struct drm_driver amdgpu_kms_driver;
+
+const char *amdgpu_asic_name[] = {
+	"TAHITI",
+	"PITCAIRN",
+	"VERDE",
+	"OLAND",
+	"HAINAN",
+	"BONAIRE",
+	"KAVERI",
+	"KABINI",
+	"HAWAII",
+	"MULLINS",
+	"TOPAZ",
+	"TONGA",
+	"FIJI",
+	"CARRIZO",
+	"STONEY",
+	"POLARIS10",
+	"POLARIS11",
+	"POLARIS12",
+	"VEGAM",
+	"VEGA10",
+	"VEGA12",
+	"VEGA20",
+	"RAVEN",
+	"ARCTURUS",
+	"RENOIR",
+	"ALDEBARAN",
+	"NAVI10",
+	"CYAN_SKILLFISH",
+	"NAVI14",
+	"NAVI12",
+	"SIENNA_CICHLID",
+	"NAVY_FLOUNDER",
+	"VANGOGH",
+	"DIMGREY_CAVEFISH",
+	"BEIGE_GOBY",
+	"YELLOW_CARP",
+	"IP DISCOVERY",
+	"LAST",
+};
+
+/**
+ * DOC: pcie_replay_count
+ *
+ * The amdgpu driver provides a sysfs API for reporting the total number
+ * of PCIe replays (NAKs)
+ * The file pcie_replay_count is used for this and returns the total
+ * number of replays as a sum of the NAKs generated and NAKs received
+ */
+
+static ssize_t amdgpu_device_get_pcie_replay_count(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct drm_device *ddev = dev_get_drvdata(dev);
+	struct amdgpu_device *adev = drm_to_adev(ddev);
+	uint64_t cnt = amdgpu_asic_get_pcie_replay_count(adev);
+
+	return sysfs_emit(buf, "%llu\n", cnt);
+}
+
+static DEVICE_ATTR(pcie_replay_count, S_IRUGO,
+		amdgpu_device_get_pcie_replay_count, NULL);
+
+static void amdgpu_device_get_pcie_info(struct amdgpu_device *adev);
+
+/**
+ * DOC: product_name
+ *
+ * The amdgpu driver provides a sysfs API for reporting the product name
+ * for the device
+ * The file serial_number is used for this and returns the product name
+ * as returned from the FRU.
+ * NOTE: This is only available for certain server cards
+ */
+
+static ssize_t amdgpu_device_get_product_name(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct drm_device *ddev = dev_get_drvdata(dev);
+	struct amdgpu_device *adev = drm_to_adev(ddev);
+
+	return sysfs_emit(buf, "%s\n", adev->product_name);
+}
+
+static DEVICE_ATTR(product_name, S_IRUGO,
+		amdgpu_device_get_product_name, NULL);
+
+/**
+ * DOC: product_number
+ *
+ * The amdgpu driver provides a sysfs API for reporting the part number
+ * for the device
+ * The file serial_number is used for this and returns the part number
+ * as returned from the FRU.
+ * NOTE: This is only available for certain server cards
+ */
+
+static ssize_t amdgpu_device_get_product_number(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct drm_device *ddev = dev_get_drvdata(dev);
+	struct amdgpu_device *adev = drm_to_adev(ddev);
+
+	return sysfs_emit(buf, "%s\n", adev->product_number);
+}
+
+static DEVICE_ATTR(product_number, S_IRUGO,
+		amdgpu_device_get_product_number, NULL);
+
+/**
+ * DOC: serial_number
+ *
+ * The amdgpu driver provides a sysfs API for reporting the serial number
+ * for the device
+ * The file serial_number is used for this and returns the serial number
+ * as returned from the FRU.
+ * NOTE: This is only available for certain server cards
+ */
+
+static ssize_t amdgpu_device_get_serial_number(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct drm_device *ddev = dev_get_drvdata(dev);
+	struct amdgpu_device *adev = drm_to_adev(ddev);
+
+	return sysfs_emit(buf, "%s\n", adev->serial);
+}
+
+static DEVICE_ATTR(serial_number, S_IRUGO,
+		amdgpu_device_get_serial_number, NULL);
+
+/**
+ * amdgpu_device_supports_px - Is the device a dGPU with ATPX power control
+ *
+ * @dev: drm_device pointer
+ *
+ * Returns true if the device is a dGPU with ATPX power control,
+ * otherwise return false.
+ */
+bool amdgpu_device_supports_px(struct drm_device *dev)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+
+	if ((adev->flags & AMD_IS_PX) && !amdgpu_is_atpx_hybrid())
+		return true;
+	return false;
+}
+
+/**
+ * amdgpu_device_supports_boco - Is the device a dGPU with ACPI power resources
+ *
+ * @dev: drm_device pointer
+ *
+ * Returns true if the device is a dGPU with ACPI power control,
+ * otherwise return false.
+ */
+bool amdgpu_device_supports_boco(struct drm_device *dev)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+
+	if (adev->has_pr3 ||
+	    ((adev->flags & AMD_IS_PX) && amdgpu_is_atpx_hybrid()))
+		return true;
+	return false;
+}
+
+/**
+ * amdgpu_device_supports_baco - Does the device support BACO
+ *
+ * @dev: drm_device pointer
+ *
+ * Returns true if the device supporte BACO,
+ * otherwise return false.
+ */
+bool amdgpu_device_supports_baco(struct drm_device *dev)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+
+	return amdgpu_asic_supports_baco(adev);
+}
+
+/**
+ * amdgpu_device_supports_smart_shift - Is the device dGPU with
+ * smart shift support
+ *
+ * @dev: drm_device pointer
+ *
+ * Returns true if the device is a dGPU with Smart Shift support,
+ * otherwise returns false.
+ */
+bool amdgpu_device_supports_smart_shift(struct drm_device *dev)
+{
+	return (amdgpu_device_supports_boco(dev) &&
+		amdgpu_acpi_is_power_shift_control_supported());
+}
+
+/*
+ * VRAM access helper functions
+ */
+
+/**
+ * amdgpu_device_mm_access - access vram by MM_INDEX/MM_DATA
+ *
+ * @adev: amdgpu_device pointer
+ * @pos: offset of the buffer in vram
+ * @buf: virtual address of the buffer in system memory
+ * @size: read/write size, sizeof(@buf) must > @size
+ * @write: true - write to vram, otherwise - read from vram
+ */
+void amdgpu_device_mm_access(struct amdgpu_device *adev, loff_t pos,
+			     void *buf, size_t size, bool write)
+{
+	unsigned long flags;
+	uint32_t hi = ~0, tmp = 0;
+	uint32_t *data = buf;
+	uint64_t last;
+	int idx;
+
+	if (!drm_dev_enter(adev_to_drm(adev), &idx))
+		return;
+
+	BUG_ON(!IS_ALIGNED(pos, 4) || !IS_ALIGNED(size, 4));
+
+	spin_lock_irqsave(&adev->mmio_idx_lock, flags);
+	for (last = pos + size; pos < last; pos += 4) {
+		tmp = pos >> 31;
+
+		WREG32_NO_KIQ(mmMM_INDEX, ((uint32_t)pos) | 0x80000000);
+		if (tmp != hi) {
+			WREG32_NO_KIQ(mmMM_INDEX_HI, tmp);
+			hi = tmp;
+		}
+		if (write)
+			WREG32_NO_KIQ(mmMM_DATA, *data++);
+		else
+			*data++ = RREG32_NO_KIQ(mmMM_DATA);
+	}
+
+	spin_unlock_irqrestore(&adev->mmio_idx_lock, flags);
+	drm_dev_exit(idx);
+}
+
+/**
+ * amdgpu_device_aper_access - access vram by vram aperature
+ *
+ * @adev: amdgpu_device pointer
+ * @pos: offset of the buffer in vram
+ * @buf: virtual address of the buffer in system memory
+ * @size: read/write size, sizeof(@buf) must > @size
+ * @write: true - write to vram, otherwise - read from vram
+ *
+ * The return value means how many bytes have been transferred.
+ */
+size_t amdgpu_device_aper_access(struct amdgpu_device *adev, loff_t pos,
+				 void *buf, size_t size, bool write)
+{
+#ifdef CONFIG_64BIT
+	void __iomem *addr;
+	size_t count = 0;
+	uint64_t last;
+
+	if (!adev->mman.aper_base_kaddr)
+		return 0;
+
+	last = min(pos + size, adev->gmc.visible_vram_size);
+	if (last > pos) {
+		addr = adev->mman.aper_base_kaddr + pos;
+		count = last - pos;
+
+		if (write) {
+			memcpy_toio(addr, buf, count);
+			mb();
+			amdgpu_device_flush_hdp(adev, NULL);
+		} else {
+			amdgpu_device_invalidate_hdp(adev, NULL);
+			mb();
+			memcpy_fromio(buf, addr, count);
+		}
+
+	}
+
+	return count;
+#else
+	return 0;
+#endif
+}
+
+/**
+ * amdgpu_device_vram_access - read/write a buffer in vram
+ *
+ * @adev: amdgpu_device pointer
+ * @pos: offset of the buffer in vram
+ * @buf: virtual address of the buffer in system memory
+ * @size: read/write size, sizeof(@buf) must > @size
+ * @write: true - write to vram, otherwise - read from vram
+ */
+void amdgpu_device_vram_access(struct amdgpu_device *adev, loff_t pos,
+			       void *buf, size_t size, bool write)
+{
+	size_t count;
+
+	/* try to using vram apreature to access vram first */
+	count = amdgpu_device_aper_access(adev, pos, buf, size, write);
+	size -= count;
+	if (size) {
+		/* using MM to access rest vram */
+		pos += count;
+		buf += count;
+		amdgpu_device_mm_access(adev, pos, buf, size, write);
+	}
+}
+
+/*
+ * register access helper functions.
+ */
+
+/* Check if hw access should be skipped because of hotplug or device error */
+bool amdgpu_device_skip_hw_access(struct amdgpu_device *adev)
+{
+	if (adev->no_hw_access)
+		return true;
+
+#ifdef CONFIG_LOCKDEP
+	/*
+	 * This is a bit complicated to understand, so worth a comment. What we assert
+	 * here is that the GPU reset is not running on another thread in parallel.
+	 *
+	 * For this we trylock the read side of the reset semaphore, if that succeeds
+	 * we know that the reset is not running in paralell.
+	 *
+	 * If the trylock fails we assert that we are either already holding the read
+	 * side of the lock or are the reset thread itself and hold the write side of
+	 * the lock.
+	 */
+	if (in_task()) {
+		if (down_read_trylock(&adev->reset_domain->sem))
+			up_read(&adev->reset_domain->sem);
+		else
+			lockdep_assert_held(&adev->reset_domain->sem);
+	}
+#endif
+	return false;
+}
+
+/**
+ * amdgpu_device_rreg - read a memory mapped IO or indirect register
+ *
+ * @adev: amdgpu_device pointer
+ * @reg: dword aligned register offset
+ * @acc_flags: access flags which require special behavior
+ *
+ * Returns the 32 bit value from the offset specified.
+ */
+uint32_t amdgpu_device_rreg(struct amdgpu_device *adev,
+			    uint32_t reg, uint32_t acc_flags)
+{
+	uint32_t ret;
+
+	if (amdgpu_device_skip_hw_access(adev))
+		return 0;
+
+	if ((reg * 4) < adev->rmmio_size) {
+		if (!(acc_flags & AMDGPU_REGS_NO_KIQ) &&
+		    amdgpu_sriov_runtime(adev) &&
+		    down_read_trylock(&adev->reset_domain->sem)) {
+			ret = amdgpu_kiq_rreg(adev, reg);
+			up_read(&adev->reset_domain->sem);
+		} else {
+			ret = readl(((void __iomem *)adev->rmmio) + (reg * 4));
+		}
+	} else {
+		ret = adev->pcie_rreg(adev, reg * 4);
+	}
+
+	trace_amdgpu_device_rreg(adev->pdev->device, reg, ret);
+
+	return ret;
+}
+
+/*
+ * MMIO register read with bytes helper functions
+ * @offset:bytes offset from MMIO start
+ *
+*/
+
+/**
+ * amdgpu_mm_rreg8 - read a memory mapped IO register
+ *
+ * @adev: amdgpu_device pointer
+ * @offset: byte aligned register offset
+ *
+ * Returns the 8 bit value from the offset specified.
+ */
+uint8_t amdgpu_mm_rreg8(struct amdgpu_device *adev, uint32_t offset)
+{
+	if (amdgpu_device_skip_hw_access(adev))
+		return 0;
+
+	if (offset < adev->rmmio_size)
+		return (readb(adev->rmmio + offset));
+	BUG();
+}
+
+/*
+ * MMIO register write with bytes helper functions
+ * @offset:bytes offset from MMIO start
+ * @value: the value want to be written to the register
+ *
+*/
+/**
+ * amdgpu_mm_wreg8 - read a memory mapped IO register
+ *
+ * @adev: amdgpu_device pointer
+ * @offset: byte aligned register offset
+ * @value: 8 bit value to write
+ *
+ * Writes the value specified to the offset specified.
+ */
+void amdgpu_mm_wreg8(struct amdgpu_device *adev, uint32_t offset, uint8_t value)
+{
+	if (amdgpu_device_skip_hw_access(adev))
+		return;
+
+	if (offset < adev->rmmio_size)
+		writeb(value, adev->rmmio + offset);
+	else
+		BUG();
+}
+
+/**
+ * amdgpu_device_wreg - write to a memory mapped IO or indirect register
+ *
+ * @adev: amdgpu_device pointer
+ * @reg: dword aligned register offset
+ * @v: 32 bit value to write to the register
+ * @acc_flags: access flags which require special behavior
+ *
+ * Writes the value specified to the offset specified.
+ */
+void amdgpu_device_wreg(struct amdgpu_device *adev,
+			uint32_t reg, uint32_t v,
+			uint32_t acc_flags)
+{
+	if (amdgpu_device_skip_hw_access(adev))
+		return;
+
+	if ((reg * 4) < adev->rmmio_size) {
+		if (!(acc_flags & AMDGPU_REGS_NO_KIQ) &&
+		    amdgpu_sriov_runtime(adev) &&
+		    down_read_trylock(&adev->reset_domain->sem)) {
+			amdgpu_kiq_wreg(adev, reg, v);
+			up_read(&adev->reset_domain->sem);
+		} else {
+			writel(v, ((void __iomem *)adev->rmmio) + (reg * 4));
+		}
+	} else {
+		adev->pcie_wreg(adev, reg * 4, v);
+	}
+
+	trace_amdgpu_device_wreg(adev->pdev->device, reg, v);
+}
+
+/**
+ * amdgpu_mm_wreg_mmio_rlc -  write register either with direct/indirect mmio or with RLC path if in range
+ *
+ * @adev: amdgpu_device pointer
+ * @reg: mmio/rlc register
+ * @v: value to write
+ *
+ * this function is invoked only for the debugfs register access
+ */
+void amdgpu_mm_wreg_mmio_rlc(struct amdgpu_device *adev,
+			     uint32_t reg, uint32_t v)
+{
+	if (amdgpu_device_skip_hw_access(adev))
+		return;
+
+	if (amdgpu_sriov_fullaccess(adev) &&
+	    adev->gfx.rlc.funcs &&
+	    adev->gfx.rlc.funcs->is_rlcg_access_range) {
+		if (adev->gfx.rlc.funcs->is_rlcg_access_range(adev, reg))
+			return amdgpu_sriov_wreg(adev, reg, v, 0, 0);
+	} else if ((reg * 4) >= adev->rmmio_size) {
+		adev->pcie_wreg(adev, reg * 4, v);
+	} else {
+		writel(v, ((void __iomem *)adev->rmmio) + (reg * 4));
+	}
+}
+
+/**
+ * amdgpu_mm_rdoorbell - read a doorbell dword
+ *
+ * @adev: amdgpu_device pointer
+ * @index: doorbell index
+ *
+ * Returns the value in the doorbell aperture at the
+ * requested doorbell index (CIK).
+ */
+u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index)
+{
+	if (amdgpu_device_skip_hw_access(adev))
+		return 0;
+
+	if (index < adev->doorbell.num_doorbells) {
+		return readl(adev->doorbell.ptr + index);
+	} else {
+		DRM_ERROR("reading beyond doorbell aperture: 0x%08x!\n", index);
+		return 0;
+	}
+}
+
+/**
+ * amdgpu_mm_wdoorbell - write a doorbell dword
+ *
+ * @adev: amdgpu_device pointer
+ * @index: doorbell index
+ * @v: value to write
+ *
+ * Writes @v to the doorbell aperture at the
+ * requested doorbell index (CIK).
+ */
+void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v)
+{
+	if (amdgpu_device_skip_hw_access(adev))
+		return;
+
+	if (index < adev->doorbell.num_doorbells) {
+		writel(v, adev->doorbell.ptr + index);
+	} else {
+		DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", index);
+	}
+}
+
+/**
+ * amdgpu_mm_rdoorbell64 - read a doorbell Qword
+ *
+ * @adev: amdgpu_device pointer
+ * @index: doorbell index
+ *
+ * Returns the value in the doorbell aperture at the
+ * requested doorbell index (VEGA10+).
+ */
+u64 amdgpu_mm_rdoorbell64(struct amdgpu_device *adev, u32 index)
+{
+	if (amdgpu_device_skip_hw_access(adev))
+		return 0;
+
+	if (index < adev->doorbell.num_doorbells) {
+		return atomic64_read((atomic64_t *)(adev->doorbell.ptr + index));
+	} else {
+		DRM_ERROR("reading beyond doorbell aperture: 0x%08x!\n", index);
+		return 0;
+	}
+}
+
+/**
+ * amdgpu_mm_wdoorbell64 - write a doorbell Qword
+ *
+ * @adev: amdgpu_device pointer
+ * @index: doorbell index
+ * @v: value to write
+ *
+ * Writes @v to the doorbell aperture at the
+ * requested doorbell index (VEGA10+).
+ */
+void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v)
+{
+	if (amdgpu_device_skip_hw_access(adev))
+		return;
+
+	if (index < adev->doorbell.num_doorbells) {
+		atomic64_set((atomic64_t *)(adev->doorbell.ptr + index), v);
+	} else {
+		DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", index);
+	}
+}
+
+/**
+ * amdgpu_device_indirect_rreg - read an indirect register
+ *
+ * @adev: amdgpu_device pointer
+ * @pcie_index: mmio register offset
+ * @pcie_data: mmio register offset
+ * @reg_addr: indirect register address to read from
+ *
+ * Returns the value of indirect register @reg_addr
+ */
+u32 amdgpu_device_indirect_rreg(struct amdgpu_device *adev,
+				u32 pcie_index, u32 pcie_data,
+				u32 reg_addr)
+{
+	unsigned long flags;
+	u32 r;
+	void __iomem *pcie_index_offset;
+	void __iomem *pcie_data_offset;
+
+	spin_lock_irqsave(&adev->pcie_idx_lock, flags);
+	pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
+	pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
+
+	writel(reg_addr, pcie_index_offset);
+	readl(pcie_index_offset);
+	r = readl(pcie_data_offset);
+	spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
+
+	return r;
+}
+
+/**
+ * amdgpu_device_indirect_rreg64 - read a 64bits indirect register
+ *
+ * @adev: amdgpu_device pointer
+ * @pcie_index: mmio register offset
+ * @pcie_data: mmio register offset
+ * @reg_addr: indirect register address to read from
+ *
+ * Returns the value of indirect register @reg_addr
+ */
+u64 amdgpu_device_indirect_rreg64(struct amdgpu_device *adev,
+				  u32 pcie_index, u32 pcie_data,
+				  u32 reg_addr)
+{
+	unsigned long flags;
+	u64 r;
+	void __iomem *pcie_index_offset;
+	void __iomem *pcie_data_offset;
+
+	spin_lock_irqsave(&adev->pcie_idx_lock, flags);
+	pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
+	pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
+
+	/* read low 32 bits */
+	writel(reg_addr, pcie_index_offset);
+	readl(pcie_index_offset);
+	r = readl(pcie_data_offset);
+	/* read high 32 bits */
+	writel(reg_addr + 4, pcie_index_offset);
+	readl(pcie_index_offset);
+	r |= ((u64)readl(pcie_data_offset) << 32);
+	spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
+
+	return r;
+}
+
+/**
+ * amdgpu_device_indirect_wreg - write an indirect register address
+ *
+ * @adev: amdgpu_device pointer
+ * @pcie_index: mmio register offset
+ * @pcie_data: mmio register offset
+ * @reg_addr: indirect register offset
+ * @reg_data: indirect register data
+ *
+ */
+void amdgpu_device_indirect_wreg(struct amdgpu_device *adev,
+				 u32 pcie_index, u32 pcie_data,
+				 u32 reg_addr, u32 reg_data)
+{
+	unsigned long flags;
+	void __iomem *pcie_index_offset;
+	void __iomem *pcie_data_offset;
+
+	spin_lock_irqsave(&adev->pcie_idx_lock, flags);
+	pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
+	pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
+
+	writel(reg_addr, pcie_index_offset);
+	readl(pcie_index_offset);
+	writel(reg_data, pcie_data_offset);
+	readl(pcie_data_offset);
+	spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
+}
+
+/**
+ * amdgpu_device_indirect_wreg64 - write a 64bits indirect register address
+ *
+ * @adev: amdgpu_device pointer
+ * @pcie_index: mmio register offset
+ * @pcie_data: mmio register offset
+ * @reg_addr: indirect register offset
+ * @reg_data: indirect register data
+ *
+ */
+void amdgpu_device_indirect_wreg64(struct amdgpu_device *adev,
+				   u32 pcie_index, u32 pcie_data,
+				   u32 reg_addr, u64 reg_data)
+{
+	unsigned long flags;
+	void __iomem *pcie_index_offset;
+	void __iomem *pcie_data_offset;
+
+	spin_lock_irqsave(&adev->pcie_idx_lock, flags);
+	pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
+	pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
+
+	/* write low 32 bits */
+	writel(reg_addr, pcie_index_offset);
+	readl(pcie_index_offset);
+	writel((u32)(reg_data & 0xffffffffULL), pcie_data_offset);
+	readl(pcie_data_offset);
+	/* write high 32 bits */
+	writel(reg_addr + 4, pcie_index_offset);
+	readl(pcie_index_offset);
+	writel((u32)(reg_data >> 32), pcie_data_offset);
+	readl(pcie_data_offset);
+	spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
+}
+
+/**
+ * amdgpu_invalid_rreg - dummy reg read function
+ *
+ * @adev: amdgpu_device pointer
+ * @reg: offset of register
+ *
+ * Dummy register read function.  Used for register blocks
+ * that certain asics don't have (all asics).
+ * Returns the value in the register.
+ */
+static uint32_t amdgpu_invalid_rreg(struct amdgpu_device *adev, uint32_t reg)
+{
+	DRM_ERROR("Invalid callback to read register 0x%04X\n", reg);
+	BUG();
+	return 0;
+}
+
+/**
+ * amdgpu_invalid_wreg - dummy reg write function
+ *
+ * @adev: amdgpu_device pointer
+ * @reg: offset of register
+ * @v: value to write to the register
+ *
+ * Dummy register read function.  Used for register blocks
+ * that certain asics don't have (all asics).
+ */
+static void amdgpu_invalid_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v)
+{
+	DRM_ERROR("Invalid callback to write register 0x%04X with 0x%08X\n",
+		  reg, v);
+	BUG();
+}
+
+/**
+ * amdgpu_invalid_rreg64 - dummy 64 bit reg read function
+ *
+ * @adev: amdgpu_device pointer
+ * @reg: offset of register
+ *
+ * Dummy register read function.  Used for register blocks
+ * that certain asics don't have (all asics).
+ * Returns the value in the register.
+ */
+static uint64_t amdgpu_invalid_rreg64(struct amdgpu_device *adev, uint32_t reg)
+{
+	DRM_ERROR("Invalid callback to read 64 bit register 0x%04X\n", reg);
+	BUG();
+	return 0;
+}
+
+/**
+ * amdgpu_invalid_wreg64 - dummy reg write function
+ *
+ * @adev: amdgpu_device pointer
+ * @reg: offset of register
+ * @v: value to write to the register
+ *
+ * Dummy register read function.  Used for register blocks
+ * that certain asics don't have (all asics).
+ */
+static void amdgpu_invalid_wreg64(struct amdgpu_device *adev, uint32_t reg, uint64_t v)
+{
+	DRM_ERROR("Invalid callback to write 64 bit register 0x%04X with 0x%08llX\n",
+		  reg, v);
+	BUG();
+}
+
+/**
+ * amdgpu_block_invalid_rreg - dummy reg read function
+ *
+ * @adev: amdgpu_device pointer
+ * @block: offset of instance
+ * @reg: offset of register
+ *
+ * Dummy register read function.  Used for register blocks
+ * that certain asics don't have (all asics).
+ * Returns the value in the register.
+ */
+static uint32_t amdgpu_block_invalid_rreg(struct amdgpu_device *adev,
+					  uint32_t block, uint32_t reg)
+{
+	DRM_ERROR("Invalid callback to read register 0x%04X in block 0x%04X\n",
+		  reg, block);
+	BUG();
+	return 0;
+}
+
+/**
+ * amdgpu_block_invalid_wreg - dummy reg write function
+ *
+ * @adev: amdgpu_device pointer
+ * @block: offset of instance
+ * @reg: offset of register
+ * @v: value to write to the register
+ *
+ * Dummy register read function.  Used for register blocks
+ * that certain asics don't have (all asics).
+ */
+static void amdgpu_block_invalid_wreg(struct amdgpu_device *adev,
+				      uint32_t block,
+				      uint32_t reg, uint32_t v)
+{
+	DRM_ERROR("Invalid block callback to write register 0x%04X in block 0x%04X with 0x%08X\n",
+		  reg, block, v);
+	BUG();
+}
+
+/**
+ * amdgpu_device_asic_init - Wrapper for atom asic_init
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Does any asic specific work and then calls atom asic init.
+ */
+static int amdgpu_device_asic_init(struct amdgpu_device *adev)
+{
+	amdgpu_asic_pre_asic_init(adev);
+
+	if (adev->ip_versions[GC_HWIP][0] >= IP_VERSION(11, 0, 0))
+		return amdgpu_atomfirmware_asic_init(adev, true);
+	else
+		return amdgpu_atom_asic_init(adev->mode_info.atom_context);
+}
+
+/**
+ * amdgpu_device_vram_scratch_init - allocate the VRAM scratch page
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Allocates a scratch page of VRAM for use by various things in the
+ * driver.
+ */
+static int amdgpu_device_vram_scratch_init(struct amdgpu_device *adev)
+{
+	return amdgpu_bo_create_kernel(adev, AMDGPU_GPU_PAGE_SIZE,
+				       PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM,
+				       &adev->vram_scratch.robj,
+				       &adev->vram_scratch.gpu_addr,
+				       (void **)&adev->vram_scratch.ptr);
+}
+
+/**
+ * amdgpu_device_vram_scratch_fini - Free the VRAM scratch page
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Frees the VRAM scratch page.
+ */
+static void amdgpu_device_vram_scratch_fini(struct amdgpu_device *adev)
+{
+	amdgpu_bo_free_kernel(&adev->vram_scratch.robj, NULL, NULL);
+}
+
+/**
+ * amdgpu_device_program_register_sequence - program an array of registers.
+ *
+ * @adev: amdgpu_device pointer
+ * @registers: pointer to the register array
+ * @array_size: size of the register array
+ *
+ * Programs an array or registers with and and or masks.
+ * This is a helper for setting golden registers.
+ */
+void amdgpu_device_program_register_sequence(struct amdgpu_device *adev,
+					     const u32 *registers,
+					     const u32 array_size)
+{
+	u32 tmp, reg, and_mask, or_mask;
+	int i;
+
+	if (array_size % 3)
+		return;
+
+	for (i = 0; i < array_size; i +=3) {
+		reg = registers[i + 0];
+		and_mask = registers[i + 1];
+		or_mask = registers[i + 2];
+
+		if (and_mask == 0xffffffff) {
+			tmp = or_mask;
+		} else {
+			tmp = RREG32(reg);
+			tmp &= ~and_mask;
+			if (adev->family >= AMDGPU_FAMILY_AI)
+				tmp |= (or_mask & and_mask);
+			else
+				tmp |= or_mask;
+		}
+		WREG32(reg, tmp);
+	}
+}
+
+/**
+ * amdgpu_device_pci_config_reset - reset the GPU
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Resets the GPU using the pci config reset sequence.
+ * Only applicable to asics prior to vega10.
+ */
+void amdgpu_device_pci_config_reset(struct amdgpu_device *adev)
+{
+	pci_write_config_dword(adev->pdev, 0x7c, AMDGPU_ASIC_RESET_DATA);
+}
+
+/**
+ * amdgpu_device_pci_reset - reset the GPU using generic PCI means
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Resets the GPU using generic pci reset interfaces (FLR, SBR, etc.).
+ */
+int amdgpu_device_pci_reset(struct amdgpu_device *adev)
+{
+	return pci_reset_function(adev->pdev);
+}
+
+/*
+ * GPU doorbell aperture helpers function.
+ */
+/**
+ * amdgpu_device_doorbell_init - Init doorbell driver information.
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Init doorbell driver information (CIK)
+ * Returns 0 on success, error on failure.
+ */
+static int amdgpu_device_doorbell_init(struct amdgpu_device *adev)
+{
+
+	/* No doorbell on SI hardware generation */
+	if (adev->asic_type < CHIP_BONAIRE) {
+		adev->doorbell.base = 0;
+		adev->doorbell.size = 0;
+		adev->doorbell.num_doorbells = 0;
+		adev->doorbell.ptr = NULL;
+		return 0;
+	}
+
+	if (pci_resource_flags(adev->pdev, 2) & IORESOURCE_UNSET)
+		return -EINVAL;
+
+	amdgpu_asic_init_doorbell_index(adev);
+
+	/* doorbell bar mapping */
+	adev->doorbell.base = pci_resource_start(adev->pdev, 2);
+	adev->doorbell.size = pci_resource_len(adev->pdev, 2);
+
+	if (adev->enable_mes) {
+		adev->doorbell.num_doorbells =
+			adev->doorbell.size / sizeof(u32);
+	} else {
+		adev->doorbell.num_doorbells =
+			min_t(u32, adev->doorbell.size / sizeof(u32),
+			      adev->doorbell_index.max_assignment+1);
+		if (adev->doorbell.num_doorbells == 0)
+			return -EINVAL;
+
+		/* For Vega, reserve and map two pages on doorbell BAR since SDMA
+		 * paging queue doorbell use the second page. The
+		 * AMDGPU_DOORBELL64_MAX_ASSIGNMENT definition assumes all the
+		 * doorbells are in the first page. So with paging queue enabled,
+		 * the max num_doorbells should + 1 page (0x400 in dword)
+		 */
+		if (adev->asic_type >= CHIP_VEGA10)
+			adev->doorbell.num_doorbells += 0x400;
+	}
+
+	adev->doorbell.ptr = ioremap(adev->doorbell.base,
+				     adev->doorbell.num_doorbells *
+				     sizeof(u32));
+	if (adev->doorbell.ptr == NULL)
+		return -ENOMEM;
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_doorbell_fini - Tear down doorbell driver information.
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Tear down doorbell driver information (CIK)
+ */
+static void amdgpu_device_doorbell_fini(struct amdgpu_device *adev)
+{
+	iounmap(adev->doorbell.ptr);
+	adev->doorbell.ptr = NULL;
+}
+
+
+
+/*
+ * amdgpu_device_wb_*()
+ * Writeback is the method by which the GPU updates special pages in memory
+ * with the status of certain GPU events (fences, ring pointers,etc.).
+ */
+
+/**
+ * amdgpu_device_wb_fini - Disable Writeback and free memory
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Disables Writeback and frees the Writeback memory (all asics).
+ * Used at driver shutdown.
+ */
+static void amdgpu_device_wb_fini(struct amdgpu_device *adev)
+{
+	if (adev->wb.wb_obj) {
+		amdgpu_bo_free_kernel(&adev->wb.wb_obj,
+				      &adev->wb.gpu_addr,
+				      (void **)&adev->wb.wb);
+		adev->wb.wb_obj = NULL;
+	}
+}
+
+/**
+ * amdgpu_device_wb_init - Init Writeback driver info and allocate memory
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Initializes writeback and allocates writeback memory (all asics).
+ * Used at driver startup.
+ * Returns 0 on success or an -error on failure.
+ */
+static int amdgpu_device_wb_init(struct amdgpu_device *adev)
+{
+	int r;
+
+	if (adev->wb.wb_obj == NULL) {
+		/* AMDGPU_MAX_WB * sizeof(uint32_t) * 8 = AMDGPU_MAX_WB 256bit slots */
+		r = amdgpu_bo_create_kernel(adev, AMDGPU_MAX_WB * sizeof(uint32_t) * 8,
+					    PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT,
+					    &adev->wb.wb_obj, &adev->wb.gpu_addr,
+					    (void **)&adev->wb.wb);
+		if (r) {
+			dev_warn(adev->dev, "(%d) create WB bo failed\n", r);
+			return r;
+		}
+
+		adev->wb.num_wb = AMDGPU_MAX_WB;
+		memset(&adev->wb.used, 0, sizeof(adev->wb.used));
+
+		/* clear wb memory */
+		memset((char *)adev->wb.wb, 0, AMDGPU_MAX_WB * sizeof(uint32_t) * 8);
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_wb_get - Allocate a wb entry
+ *
+ * @adev: amdgpu_device pointer
+ * @wb: wb index
+ *
+ * Allocate a wb slot for use by the driver (all asics).
+ * Returns 0 on success or -EINVAL on failure.
+ */
+int amdgpu_device_wb_get(struct amdgpu_device *adev, u32 *wb)
+{
+	unsigned long offset = find_first_zero_bit(adev->wb.used, adev->wb.num_wb);
+
+	if (offset < adev->wb.num_wb) {
+		__set_bit(offset, adev->wb.used);
+		*wb = offset << 3; /* convert to dw offset */
+		return 0;
+	} else {
+		return -EINVAL;
+	}
+}
+
+/**
+ * amdgpu_device_wb_free - Free a wb entry
+ *
+ * @adev: amdgpu_device pointer
+ * @wb: wb index
+ *
+ * Free a wb slot allocated for use by the driver (all asics)
+ */
+void amdgpu_device_wb_free(struct amdgpu_device *adev, u32 wb)
+{
+	wb >>= 3;
+	if (wb < adev->wb.num_wb)
+		__clear_bit(wb, adev->wb.used);
+}
+
+/**
+ * amdgpu_device_resize_fb_bar - try to resize FB BAR
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Try to resize FB BAR to make all VRAM CPU accessible. We try very hard not
+ * to fail, but if any of the BARs is not accessible after the size we abort
+ * driver loading by returning -ENODEV.
+ */
+int amdgpu_device_resize_fb_bar(struct amdgpu_device *adev)
+{
+	int rbar_size = pci_rebar_bytes_to_size(adev->gmc.real_vram_size);
+	struct pci_bus *root;
+	struct resource *res;
+	unsigned i;
+	u16 cmd;
+	int r;
+
+	if (!IS_ENABLED(CONFIG_PHYS_ADDR_T_64BIT))
+		return 0;
+
+	/* Bypass for VF */
+	if (amdgpu_sriov_vf(adev))
+		return 0;
+
+	/* skip if the bios has already enabled large BAR */
+	if (adev->gmc.real_vram_size &&
+	    (pci_resource_len(adev->pdev, 0) >= adev->gmc.real_vram_size))
+		return 0;
+
+	/* Check if the root BUS has 64bit memory resources */
+	root = adev->pdev->bus;
+	while (root->parent)
+		root = root->parent;
+
+	pci_bus_for_each_resource(root, res, i) {
+		if (res && res->flags & (IORESOURCE_MEM | IORESOURCE_MEM_64) &&
+		    res->start > 0x100000000ull)
+			break;
+	}
+
+	/* Trying to resize is pointless without a root hub window above 4GB */
+	if (!res)
+		return 0;
+
+	/* Limit the BAR size to what is available */
+	rbar_size = min(fls(pci_rebar_get_possible_sizes(adev->pdev, 0)) - 1,
+			rbar_size);
+
+	/* Disable memory decoding while we change the BAR addresses and size */
+	pci_read_config_word(adev->pdev, PCI_COMMAND, &cmd);
+	pci_write_config_word(adev->pdev, PCI_COMMAND,
+			      cmd & ~PCI_COMMAND_MEMORY);
+
+	/* Free the VRAM and doorbell BAR, we most likely need to move both. */
+	amdgpu_device_doorbell_fini(adev);
+	if (adev->asic_type >= CHIP_BONAIRE)
+		pci_release_resource(adev->pdev, 2);
+
+	pci_release_resource(adev->pdev, 0);
+
+	r = pci_resize_resource(adev->pdev, 0, rbar_size);
+	if (r == -ENOSPC)
+		DRM_INFO("Not enough PCI address space for a large BAR.");
+	else if (r && r != -ENOTSUPP)
+		DRM_ERROR("Problem resizing BAR0 (%d).", r);
+
+	pci_assign_unassigned_bus_resources(adev->pdev->bus);
+
+	/* When the doorbell or fb BAR isn't available we have no chance of
+	 * using the device.
+	 */
+	r = amdgpu_device_doorbell_init(adev);
+	if (r || (pci_resource_flags(adev->pdev, 0) & IORESOURCE_UNSET))
+		return -ENODEV;
+
+	pci_write_config_word(adev->pdev, PCI_COMMAND, cmd);
+
+	return 0;
+}
+
+/*
+ * GPU helpers function.
+ */
+/**
+ * amdgpu_device_need_post - check if the hw need post or not
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Check if the asic has been initialized (all asics) at driver startup
+ * or post is needed if  hw reset is performed.
+ * Returns true if need or false if not.
+ */
+bool amdgpu_device_need_post(struct amdgpu_device *adev)
+{
+	uint32_t reg;
+
+	if (amdgpu_sriov_vf(adev))
+		return false;
+
+	if (amdgpu_passthrough(adev)) {
+		/* for FIJI: In whole GPU pass-through virtualization case, after VM reboot
+		 * some old smc fw still need driver do vPost otherwise gpu hang, while
+		 * those smc fw version above 22.15 doesn't have this flaw, so we force
+		 * vpost executed for smc version below 22.15
+		 */
+		if (adev->asic_type == CHIP_FIJI) {
+			int err;
+			uint32_t fw_ver;
+			err = request_firmware(&adev->pm.fw, "amdgpu/fiji_smc.bin", adev->dev);
+			/* force vPost if error occured */
+			if (err)
+				return true;
+
+			fw_ver = *((uint32_t *)adev->pm.fw->data + 69);
+			if (fw_ver < 0x00160e00)
+				return true;
+		}
+	}
+
+	/* Don't post if we need to reset whole hive on init */
+	if (adev->gmc.xgmi.pending_reset)
+		return false;
+
+	if (adev->has_hw_reset) {
+		adev->has_hw_reset = false;
+		return true;
+	}
+
+	/* bios scratch used on CIK+ */
+	if (adev->asic_type >= CHIP_BONAIRE)
+		return amdgpu_atombios_scratch_need_asic_init(adev);
+
+	/* check MEM_SIZE for older asics */
+	reg = amdgpu_asic_get_config_memsize(adev);
+
+	if ((reg != 0) && (reg != 0xffffffff))
+		return false;
+
+	return true;
+}
+
+/*
+ * Intel hosts such as Raptor Lake and Sapphire Rapids don't support dynamic
+ * speed switching. Until we have confirmation from Intel that a specific host
+ * supports it, it's safer that we keep it disabled for all.
+ *
+ * https://edc.intel.com/content/www/us/en/design/products/platforms/details/raptor-lake-s/13th-generation-core-processors-datasheet-volume-1-of-2/005/pci-express-support/
+ * https://gitlab.freedesktop.org/drm/amd/-/issues/2663
+ */
+bool amdgpu_device_pcie_dynamic_switching_supported(void)
+{
+#if IS_ENABLED(CONFIG_X86)
+	struct cpuinfo_x86 *c = &cpu_data(0);
+
+	if (c->x86_vendor == X86_VENDOR_INTEL)
+		return false;
+#endif
+	return true;
+}
+
+/**
+ * amdgpu_device_should_use_aspm - check if the device should program ASPM
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Confirm whether the module parameter and pcie bridge agree that ASPM should
+ * be set for this device.
+ *
+ * Returns true if it should be used or false if not.
+ */
+bool amdgpu_device_should_use_aspm(struct amdgpu_device *adev)
+{
+	switch (amdgpu_aspm) {
+	case -1:
+		break;
+	case 0:
+		return false;
+	case 1:
+		return true;
+	default:
+		return false;
+	}
+	return pcie_aspm_enabled(adev->pdev);
+}
+
+bool amdgpu_device_aspm_support_quirk(void)
+{
+#if IS_ENABLED(CONFIG_X86)
+	struct cpuinfo_x86 *c = &cpu_data(0);
+
+	return !(c->x86 == 6 && c->x86_model == INTEL_FAM6_ALDERLAKE);
+#else
+	return true;
+#endif
+}
+
+/* if we get transitioned to only one device, take VGA back */
+/**
+ * amdgpu_device_vga_set_decode - enable/disable vga decode
+ *
+ * @pdev: PCI device pointer
+ * @state: enable/disable vga decode
+ *
+ * Enable/disable vga decode (all asics).
+ * Returns VGA resource flags.
+ */
+static unsigned int amdgpu_device_vga_set_decode(struct pci_dev *pdev,
+		bool state)
+{
+	struct amdgpu_device *adev = drm_to_adev(pci_get_drvdata(pdev));
+	amdgpu_asic_set_vga_state(adev, state);
+	if (state)
+		return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
+		       VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
+	else
+		return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
+}
+
+/**
+ * amdgpu_device_check_block_size - validate the vm block size
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Validates the vm block size specified via module parameter.
+ * The vm block size defines number of bits in page table versus page directory,
+ * a page is 4KB so we have 12 bits offset, minimum 9 bits in the
+ * page table and the remaining bits are in the page directory.
+ */
+static void amdgpu_device_check_block_size(struct amdgpu_device *adev)
+{
+	/* defines number of bits in page table versus page directory,
+	 * a page is 4KB so we have 12 bits offset, minimum 9 bits in the
+	 * page table and the remaining bits are in the page directory */
+	if (amdgpu_vm_block_size == -1)
+		return;
+
+	if (amdgpu_vm_block_size < 9) {
+		dev_warn(adev->dev, "VM page table size (%d) too small\n",
+			 amdgpu_vm_block_size);
+		amdgpu_vm_block_size = -1;
+	}
+}
+
+/**
+ * amdgpu_device_check_vm_size - validate the vm size
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Validates the vm size in GB specified via module parameter.
+ * The VM size is the size of the GPU virtual memory space in GB.
+ */
+static void amdgpu_device_check_vm_size(struct amdgpu_device *adev)
+{
+	/* no need to check the default value */
+	if (amdgpu_vm_size == -1)
+		return;
+
+	if (amdgpu_vm_size < 1) {
+		dev_warn(adev->dev, "VM size (%d) too small, min is 1GB\n",
+			 amdgpu_vm_size);
+		amdgpu_vm_size = -1;
+	}
+}
+
+static void amdgpu_device_check_smu_prv_buffer_size(struct amdgpu_device *adev)
+{
+	struct sysinfo si;
+	bool is_os_64 = (sizeof(void *) == 8);
+	uint64_t total_memory;
+	uint64_t dram_size_seven_GB = 0x1B8000000;
+	uint64_t dram_size_three_GB = 0xB8000000;
+
+	if (amdgpu_smu_memory_pool_size == 0)
+		return;
+
+	if (!is_os_64) {
+		DRM_WARN("Not 64-bit OS, feature not supported\n");
+		goto def_value;
+	}
+	si_meminfo(&si);
+	total_memory = (uint64_t)si.totalram * si.mem_unit;
+
+	if ((amdgpu_smu_memory_pool_size == 1) ||
+		(amdgpu_smu_memory_pool_size == 2)) {
+		if (total_memory < dram_size_three_GB)
+			goto def_value1;
+	} else if ((amdgpu_smu_memory_pool_size == 4) ||
+		(amdgpu_smu_memory_pool_size == 8)) {
+		if (total_memory < dram_size_seven_GB)
+			goto def_value1;
+	} else {
+		DRM_WARN("Smu memory pool size not supported\n");
+		goto def_value;
+	}
+	adev->pm.smu_prv_buffer_size = amdgpu_smu_memory_pool_size << 28;
+
+	return;
+
+def_value1:
+	DRM_WARN("No enough system memory\n");
+def_value:
+	adev->pm.smu_prv_buffer_size = 0;
+}
+
+static int amdgpu_device_init_apu_flags(struct amdgpu_device *adev)
+{
+	if (!(adev->flags & AMD_IS_APU) ||
+	    adev->asic_type < CHIP_RAVEN)
+		return 0;
+
+	switch (adev->asic_type) {
+	case CHIP_RAVEN:
+		if (adev->pdev->device == 0x15dd)
+			adev->apu_flags |= AMD_APU_IS_RAVEN;
+		if (adev->pdev->device == 0x15d8)
+			adev->apu_flags |= AMD_APU_IS_PICASSO;
+		break;
+	case CHIP_RENOIR:
+		if ((adev->pdev->device == 0x1636) ||
+		    (adev->pdev->device == 0x164c))
+			adev->apu_flags |= AMD_APU_IS_RENOIR;
+		else
+			adev->apu_flags |= AMD_APU_IS_GREEN_SARDINE;
+		break;
+	case CHIP_VANGOGH:
+		adev->apu_flags |= AMD_APU_IS_VANGOGH;
+		break;
+	case CHIP_YELLOW_CARP:
+		break;
+	case CHIP_CYAN_SKILLFISH:
+		if ((adev->pdev->device == 0x13FE) ||
+		    (adev->pdev->device == 0x143F))
+			adev->apu_flags |= AMD_APU_IS_CYAN_SKILLFISH2;
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_check_arguments - validate module params
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Validates certain module parameters and updates
+ * the associated values used by the driver (all asics).
+ */
+static int amdgpu_device_check_arguments(struct amdgpu_device *adev)
+{
+	if (amdgpu_sched_jobs < 4) {
+		dev_warn(adev->dev, "sched jobs (%d) must be at least 4\n",
+			 amdgpu_sched_jobs);
+		amdgpu_sched_jobs = 4;
+	} else if (!is_power_of_2(amdgpu_sched_jobs)){
+		dev_warn(adev->dev, "sched jobs (%d) must be a power of 2\n",
+			 amdgpu_sched_jobs);
+		amdgpu_sched_jobs = roundup_pow_of_two(amdgpu_sched_jobs);
+	}
+
+	if (amdgpu_gart_size != -1 && amdgpu_gart_size < 32) {
+		/* gart size must be greater or equal to 32M */
+		dev_warn(adev->dev, "gart size (%d) too small\n",
+			 amdgpu_gart_size);
+		amdgpu_gart_size = -1;
+	}
+
+	if (amdgpu_gtt_size != -1 && amdgpu_gtt_size < 32) {
+		/* gtt size must be greater or equal to 32M */
+		dev_warn(adev->dev, "gtt size (%d) too small\n",
+				 amdgpu_gtt_size);
+		amdgpu_gtt_size = -1;
+	}
+
+	/* valid range is between 4 and 9 inclusive */
+	if (amdgpu_vm_fragment_size != -1 &&
+	    (amdgpu_vm_fragment_size > 9 || amdgpu_vm_fragment_size < 4)) {
+		dev_warn(adev->dev, "valid range is between 4 and 9\n");
+		amdgpu_vm_fragment_size = -1;
+	}
+
+	if (amdgpu_sched_hw_submission < 2) {
+		dev_warn(adev->dev, "sched hw submission jobs (%d) must be at least 2\n",
+			 amdgpu_sched_hw_submission);
+		amdgpu_sched_hw_submission = 2;
+	} else if (!is_power_of_2(amdgpu_sched_hw_submission)) {
+		dev_warn(adev->dev, "sched hw submission jobs (%d) must be a power of 2\n",
+			 amdgpu_sched_hw_submission);
+		amdgpu_sched_hw_submission = roundup_pow_of_two(amdgpu_sched_hw_submission);
+	}
+
+	if (amdgpu_reset_method < -1 || amdgpu_reset_method > 4) {
+		dev_warn(adev->dev, "invalid option for reset method, reverting to default\n");
+		amdgpu_reset_method = -1;
+	}
+
+	amdgpu_device_check_smu_prv_buffer_size(adev);
+
+	amdgpu_device_check_vm_size(adev);
+
+	amdgpu_device_check_block_size(adev);
+
+	adev->firmware.load_type = amdgpu_ucode_get_load_type(adev, amdgpu_fw_load_type);
+
+	return 0;
+}
+
+/**
+ * amdgpu_switcheroo_set_state - set switcheroo state
+ *
+ * @pdev: pci dev pointer
+ * @state: vga_switcheroo state
+ *
+ * Callback for the switcheroo driver.  Suspends or resumes the
+ * the asics before or after it is powered up using ACPI methods.
+ */
+static void amdgpu_switcheroo_set_state(struct pci_dev *pdev,
+					enum vga_switcheroo_state state)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	int r;
+
+	if (amdgpu_device_supports_px(dev) && state == VGA_SWITCHEROO_OFF)
+		return;
+
+	if (state == VGA_SWITCHEROO_ON) {
+		pr_info("switched on\n");
+		/* don't suspend or resume card normally */
+		dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
+
+		pci_set_power_state(pdev, PCI_D0);
+		amdgpu_device_load_pci_state(pdev);
+		r = pci_enable_device(pdev);
+		if (r)
+			DRM_WARN("pci_enable_device failed (%d)\n", r);
+		amdgpu_device_resume(dev, true);
+
+		dev->switch_power_state = DRM_SWITCH_POWER_ON;
+	} else {
+		pr_info("switched off\n");
+		dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
+		amdgpu_device_suspend(dev, true);
+		amdgpu_device_cache_pci_state(pdev);
+		/* Shut down the device */
+		pci_disable_device(pdev);
+		pci_set_power_state(pdev, PCI_D3cold);
+		dev->switch_power_state = DRM_SWITCH_POWER_OFF;
+	}
+}
+
+/**
+ * amdgpu_switcheroo_can_switch - see if switcheroo state can change
+ *
+ * @pdev: pci dev pointer
+ *
+ * Callback for the switcheroo driver.  Check of the switcheroo
+ * state can be changed.
+ * Returns true if the state can be changed, false if not.
+ */
+static bool amdgpu_switcheroo_can_switch(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+
+	/*
+	* FIXME: open_count is protected by drm_global_mutex but that would lead to
+	* locking inversion with the driver load path. And the access here is
+	* completely racy anyway. So don't bother with locking for now.
+	*/
+	return atomic_read(&dev->open_count) == 0;
+}
+
+static const struct vga_switcheroo_client_ops amdgpu_switcheroo_ops = {
+	.set_gpu_state = amdgpu_switcheroo_set_state,
+	.reprobe = NULL,
+	.can_switch = amdgpu_switcheroo_can_switch,
+};
+
+/**
+ * amdgpu_device_ip_set_clockgating_state - set the CG state
+ *
+ * @dev: amdgpu_device pointer
+ * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
+ * @state: clockgating state (gate or ungate)
+ *
+ * Sets the requested clockgating state for all instances of
+ * the hardware IP specified.
+ * Returns the error code from the last instance.
+ */
+int amdgpu_device_ip_set_clockgating_state(void *dev,
+					   enum amd_ip_block_type block_type,
+					   enum amd_clockgating_state state)
+{
+	struct amdgpu_device *adev = dev;
+	int i, r = 0;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+		if (adev->ip_blocks[i].version->type != block_type)
+			continue;
+		if (!adev->ip_blocks[i].version->funcs->set_clockgating_state)
+			continue;
+		r = adev->ip_blocks[i].version->funcs->set_clockgating_state(
+			(void *)adev, state);
+		if (r)
+			DRM_ERROR("set_clockgating_state of IP block <%s> failed %d\n",
+				  adev->ip_blocks[i].version->funcs->name, r);
+	}
+	return r;
+}
+
+/**
+ * amdgpu_device_ip_set_powergating_state - set the PG state
+ *
+ * @dev: amdgpu_device pointer
+ * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
+ * @state: powergating state (gate or ungate)
+ *
+ * Sets the requested powergating state for all instances of
+ * the hardware IP specified.
+ * Returns the error code from the last instance.
+ */
+int amdgpu_device_ip_set_powergating_state(void *dev,
+					   enum amd_ip_block_type block_type,
+					   enum amd_powergating_state state)
+{
+	struct amdgpu_device *adev = dev;
+	int i, r = 0;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+		if (adev->ip_blocks[i].version->type != block_type)
+			continue;
+		if (!adev->ip_blocks[i].version->funcs->set_powergating_state)
+			continue;
+		r = adev->ip_blocks[i].version->funcs->set_powergating_state(
+			(void *)adev, state);
+		if (r)
+			DRM_ERROR("set_powergating_state of IP block <%s> failed %d\n",
+				  adev->ip_blocks[i].version->funcs->name, r);
+	}
+	return r;
+}
+
+/**
+ * amdgpu_device_ip_get_clockgating_state - get the CG state
+ *
+ * @adev: amdgpu_device pointer
+ * @flags: clockgating feature flags
+ *
+ * Walks the list of IPs on the device and updates the clockgating
+ * flags for each IP.
+ * Updates @flags with the feature flags for each hardware IP where
+ * clockgating is enabled.
+ */
+void amdgpu_device_ip_get_clockgating_state(struct amdgpu_device *adev,
+					    u64 *flags)
+{
+	int i;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+		if (adev->ip_blocks[i].version->funcs->get_clockgating_state)
+			adev->ip_blocks[i].version->funcs->get_clockgating_state((void *)adev, flags);
+	}
+}
+
+/**
+ * amdgpu_device_ip_wait_for_idle - wait for idle
+ *
+ * @adev: amdgpu_device pointer
+ * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
+ *
+ * Waits for the request hardware IP to be idle.
+ * Returns 0 for success or a negative error code on failure.
+ */
+int amdgpu_device_ip_wait_for_idle(struct amdgpu_device *adev,
+				   enum amd_ip_block_type block_type)
+{
+	int i, r;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+		if (adev->ip_blocks[i].version->type == block_type) {
+			r = adev->ip_blocks[i].version->funcs->wait_for_idle((void *)adev);
+			if (r)
+				return r;
+			break;
+		}
+	}
+	return 0;
+
+}
+
+/**
+ * amdgpu_device_ip_is_idle - is the hardware IP idle
+ *
+ * @adev: amdgpu_device pointer
+ * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
+ *
+ * Check if the hardware IP is idle or not.
+ * Returns true if it the IP is idle, false if not.
+ */
+bool amdgpu_device_ip_is_idle(struct amdgpu_device *adev,
+			      enum amd_ip_block_type block_type)
+{
+	int i;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+		if (adev->ip_blocks[i].version->type == block_type)
+			return adev->ip_blocks[i].version->funcs->is_idle((void *)adev);
+	}
+	return true;
+
+}
+
+/**
+ * amdgpu_device_ip_get_ip_block - get a hw IP pointer
+ *
+ * @adev: amdgpu_device pointer
+ * @type: Type of hardware IP (SMU, GFX, UVD, etc.)
+ *
+ * Returns a pointer to the hardware IP block structure
+ * if it exists for the asic, otherwise NULL.
+ */
+struct amdgpu_ip_block *
+amdgpu_device_ip_get_ip_block(struct amdgpu_device *adev,
+			      enum amd_ip_block_type type)
+{
+	int i;
+
+	for (i = 0; i < adev->num_ip_blocks; i++)
+		if (adev->ip_blocks[i].version->type == type)
+			return &adev->ip_blocks[i];
+
+	return NULL;
+}
+
+/**
+ * amdgpu_device_ip_block_version_cmp
+ *
+ * @adev: amdgpu_device pointer
+ * @type: enum amd_ip_block_type
+ * @major: major version
+ * @minor: minor version
+ *
+ * return 0 if equal or greater
+ * return 1 if smaller or the ip_block doesn't exist
+ */
+int amdgpu_device_ip_block_version_cmp(struct amdgpu_device *adev,
+				       enum amd_ip_block_type type,
+				       u32 major, u32 minor)
+{
+	struct amdgpu_ip_block *ip_block = amdgpu_device_ip_get_ip_block(adev, type);
+
+	if (ip_block && ((ip_block->version->major > major) ||
+			((ip_block->version->major == major) &&
+			(ip_block->version->minor >= minor))))
+		return 0;
+
+	return 1;
+}
+
+/**
+ * amdgpu_device_ip_block_add
+ *
+ * @adev: amdgpu_device pointer
+ * @ip_block_version: pointer to the IP to add
+ *
+ * Adds the IP block driver information to the collection of IPs
+ * on the asic.
+ */
+int amdgpu_device_ip_block_add(struct amdgpu_device *adev,
+			       const struct amdgpu_ip_block_version *ip_block_version)
+{
+	if (!ip_block_version)
+		return -EINVAL;
+
+	switch (ip_block_version->type) {
+	case AMD_IP_BLOCK_TYPE_VCN:
+		if (adev->harvest_ip_mask & AMD_HARVEST_IP_VCN_MASK)
+			return 0;
+		break;
+	case AMD_IP_BLOCK_TYPE_JPEG:
+		if (adev->harvest_ip_mask & AMD_HARVEST_IP_JPEG_MASK)
+			return 0;
+		break;
+	default:
+		break;
+	}
+
+	DRM_INFO("add ip block number %d <%s>\n", adev->num_ip_blocks,
+		  ip_block_version->funcs->name);
+
+	adev->ip_blocks[adev->num_ip_blocks++].version = ip_block_version;
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_enable_virtual_display - enable virtual display feature
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Enabled the virtual display feature if the user has enabled it via
+ * the module parameter virtual_display.  This feature provides a virtual
+ * display hardware on headless boards or in virtualized environments.
+ * This function parses and validates the configuration string specified by
+ * the user and configues the virtual display configuration (number of
+ * virtual connectors, crtcs, etc.) specified.
+ */
+static void amdgpu_device_enable_virtual_display(struct amdgpu_device *adev)
+{
+	adev->enable_virtual_display = false;
+
+	if (amdgpu_virtual_display) {
+		const char *pci_address_name = pci_name(adev->pdev);
+		char *pciaddstr, *pciaddstr_tmp, *pciaddname_tmp, *pciaddname;
+
+		pciaddstr = kstrdup(amdgpu_virtual_display, GFP_KERNEL);
+		pciaddstr_tmp = pciaddstr;
+		while ((pciaddname_tmp = strsep(&pciaddstr_tmp, ";"))) {
+			pciaddname = strsep(&pciaddname_tmp, ",");
+			if (!strcmp("all", pciaddname)
+			    || !strcmp(pci_address_name, pciaddname)) {
+				long num_crtc;
+				int res = -1;
+
+				adev->enable_virtual_display = true;
+
+				if (pciaddname_tmp)
+					res = kstrtol(pciaddname_tmp, 10,
+						      &num_crtc);
+
+				if (!res) {
+					if (num_crtc < 1)
+						num_crtc = 1;
+					if (num_crtc > 6)
+						num_crtc = 6;
+					adev->mode_info.num_crtc = num_crtc;
+				} else {
+					adev->mode_info.num_crtc = 1;
+				}
+				break;
+			}
+		}
+
+		DRM_INFO("virtual display string:%s, %s:virtual_display:%d, num_crtc:%d\n",
+			 amdgpu_virtual_display, pci_address_name,
+			 adev->enable_virtual_display, adev->mode_info.num_crtc);
+
+		kfree(pciaddstr);
+	}
+}
+
+/**
+ * amdgpu_device_parse_gpu_info_fw - parse gpu info firmware
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Parses the asic configuration parameters specified in the gpu info
+ * firmware and makes them availale to the driver for use in configuring
+ * the asic.
+ * Returns 0 on success, -EINVAL on failure.
+ */
+static int amdgpu_device_parse_gpu_info_fw(struct amdgpu_device *adev)
+{
+	const char *chip_name;
+	char fw_name[40];
+	int err;
+	const struct gpu_info_firmware_header_v1_0 *hdr;
+
+	adev->firmware.gpu_info_fw = NULL;
+
+	if (adev->mman.discovery_bin)
+		return 0;
+
+	switch (adev->asic_type) {
+	default:
+		return 0;
+	case CHIP_VEGA10:
+		chip_name = "vega10";
+		break;
+	case CHIP_VEGA12:
+		chip_name = "vega12";
+		break;
+	case CHIP_RAVEN:
+		if (adev->apu_flags & AMD_APU_IS_RAVEN2)
+			chip_name = "raven2";
+		else if (adev->apu_flags & AMD_APU_IS_PICASSO)
+			chip_name = "picasso";
+		else
+			chip_name = "raven";
+		break;
+	case CHIP_ARCTURUS:
+		chip_name = "arcturus";
+		break;
+	case CHIP_NAVI12:
+		chip_name = "navi12";
+		break;
+	}
+
+	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_gpu_info.bin", chip_name);
+	err = request_firmware(&adev->firmware.gpu_info_fw, fw_name, adev->dev);
+	if (err) {
+		dev_err(adev->dev,
+			"Failed to load gpu_info firmware \"%s\"\n",
+			fw_name);
+		goto out;
+	}
+	err = amdgpu_ucode_validate(adev->firmware.gpu_info_fw);
+	if (err) {
+		dev_err(adev->dev,
+			"Failed to validate gpu_info firmware \"%s\"\n",
+			fw_name);
+		goto out;
+	}
+
+	hdr = (const struct gpu_info_firmware_header_v1_0 *)adev->firmware.gpu_info_fw->data;
+	amdgpu_ucode_print_gpu_info_hdr(&hdr->header);
+
+	switch (hdr->version_major) {
+	case 1:
+	{
+		const struct gpu_info_firmware_v1_0 *gpu_info_fw =
+			(const struct gpu_info_firmware_v1_0 *)(adev->firmware.gpu_info_fw->data +
+								le32_to_cpu(hdr->header.ucode_array_offset_bytes));
+
+		/*
+		 * Should be droped when DAL no longer needs it.
+		 */
+		if (adev->asic_type == CHIP_NAVI12)
+			goto parse_soc_bounding_box;
+
+		adev->gfx.config.max_shader_engines = le32_to_cpu(gpu_info_fw->gc_num_se);
+		adev->gfx.config.max_cu_per_sh = le32_to_cpu(gpu_info_fw->gc_num_cu_per_sh);
+		adev->gfx.config.max_sh_per_se = le32_to_cpu(gpu_info_fw->gc_num_sh_per_se);
+		adev->gfx.config.max_backends_per_se = le32_to_cpu(gpu_info_fw->gc_num_rb_per_se);
+		adev->gfx.config.max_texture_channel_caches =
+			le32_to_cpu(gpu_info_fw->gc_num_tccs);
+		adev->gfx.config.max_gprs = le32_to_cpu(gpu_info_fw->gc_num_gprs);
+		adev->gfx.config.max_gs_threads = le32_to_cpu(gpu_info_fw->gc_num_max_gs_thds);
+		adev->gfx.config.gs_vgt_table_depth = le32_to_cpu(gpu_info_fw->gc_gs_table_depth);
+		adev->gfx.config.gs_prim_buffer_depth = le32_to_cpu(gpu_info_fw->gc_gsprim_buff_depth);
+		adev->gfx.config.double_offchip_lds_buf =
+			le32_to_cpu(gpu_info_fw->gc_double_offchip_lds_buffer);
+		adev->gfx.cu_info.wave_front_size = le32_to_cpu(gpu_info_fw->gc_wave_size);
+		adev->gfx.cu_info.max_waves_per_simd =
+			le32_to_cpu(gpu_info_fw->gc_max_waves_per_simd);
+		adev->gfx.cu_info.max_scratch_slots_per_cu =
+			le32_to_cpu(gpu_info_fw->gc_max_scratch_slots_per_cu);
+		adev->gfx.cu_info.lds_size = le32_to_cpu(gpu_info_fw->gc_lds_size);
+		if (hdr->version_minor >= 1) {
+			const struct gpu_info_firmware_v1_1 *gpu_info_fw =
+				(const struct gpu_info_firmware_v1_1 *)(adev->firmware.gpu_info_fw->data +
+									le32_to_cpu(hdr->header.ucode_array_offset_bytes));
+			adev->gfx.config.num_sc_per_sh =
+				le32_to_cpu(gpu_info_fw->num_sc_per_sh);
+			adev->gfx.config.num_packer_per_sc =
+				le32_to_cpu(gpu_info_fw->num_packer_per_sc);
+		}
+
+parse_soc_bounding_box:
+		/*
+		 * soc bounding box info is not integrated in disocovery table,
+		 * we always need to parse it from gpu info firmware if needed.
+		 */
+		if (hdr->version_minor == 2) {
+			const struct gpu_info_firmware_v1_2 *gpu_info_fw =
+				(const struct gpu_info_firmware_v1_2 *)(adev->firmware.gpu_info_fw->data +
+									le32_to_cpu(hdr->header.ucode_array_offset_bytes));
+			adev->dm.soc_bounding_box = &gpu_info_fw->soc_bounding_box;
+		}
+		break;
+	}
+	default:
+		dev_err(adev->dev,
+			"Unsupported gpu_info table %d\n", hdr->header.ucode_version);
+		err = -EINVAL;
+		goto out;
+	}
+out:
+	return err;
+}
+
+/**
+ * amdgpu_device_ip_early_init - run early init for hardware IPs
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Early initialization pass for hardware IPs.  The hardware IPs that make
+ * up each asic are discovered each IP's early_init callback is run.  This
+ * is the first stage in initializing the asic.
+ * Returns 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
+{
+	struct pci_dev *parent;
+	int i, r;
+
+	amdgpu_device_enable_virtual_display(adev);
+
+	if (amdgpu_sriov_vf(adev)) {
+		r = amdgpu_virt_request_full_gpu(adev, true);
+		if (r)
+			return r;
+	}
+
+	switch (adev->asic_type) {
+#ifdef CONFIG_DRM_AMDGPU_SI
+	case CHIP_VERDE:
+	case CHIP_TAHITI:
+	case CHIP_PITCAIRN:
+	case CHIP_OLAND:
+	case CHIP_HAINAN:
+		adev->family = AMDGPU_FAMILY_SI;
+		r = si_set_ip_blocks(adev);
+		if (r)
+			return r;
+		break;
+#endif
+#ifdef CONFIG_DRM_AMDGPU_CIK
+	case CHIP_BONAIRE:
+	case CHIP_HAWAII:
+	case CHIP_KAVERI:
+	case CHIP_KABINI:
+	case CHIP_MULLINS:
+		if (adev->flags & AMD_IS_APU)
+			adev->family = AMDGPU_FAMILY_KV;
+		else
+			adev->family = AMDGPU_FAMILY_CI;
+
+		r = cik_set_ip_blocks(adev);
+		if (r)
+			return r;
+		break;
+#endif
+	case CHIP_TOPAZ:
+	case CHIP_TONGA:
+	case CHIP_FIJI:
+	case CHIP_POLARIS10:
+	case CHIP_POLARIS11:
+	case CHIP_POLARIS12:
+	case CHIP_VEGAM:
+	case CHIP_CARRIZO:
+	case CHIP_STONEY:
+		if (adev->flags & AMD_IS_APU)
+			adev->family = AMDGPU_FAMILY_CZ;
+		else
+			adev->family = AMDGPU_FAMILY_VI;
+
+		r = vi_set_ip_blocks(adev);
+		if (r)
+			return r;
+		break;
+	default:
+		r = amdgpu_discovery_set_ip_blocks(adev);
+		if (r)
+			return r;
+		break;
+	}
+
+	if (amdgpu_has_atpx() &&
+	    (amdgpu_is_atpx_hybrid() ||
+	     amdgpu_has_atpx_dgpu_power_cntl()) &&
+	    ((adev->flags & AMD_IS_APU) == 0) &&
+	    !dev_is_removable(&adev->pdev->dev))
+		adev->flags |= AMD_IS_PX;
+
+	if (!(adev->flags & AMD_IS_APU)) {
+		parent = pcie_find_root_port(adev->pdev);
+		adev->has_pr3 = parent ? pci_pr3_present(parent) : false;
+	}
+
+	amdgpu_amdkfd_device_probe(adev);
+
+	adev->pm.pp_feature = amdgpu_pp_feature_mask;
+	if (amdgpu_sriov_vf(adev) || sched_policy == KFD_SCHED_POLICY_NO_HWS)
+		adev->pm.pp_feature &= ~PP_GFXOFF_MASK;
+	if (amdgpu_sriov_vf(adev) && adev->asic_type == CHIP_SIENNA_CICHLID)
+		adev->pm.pp_feature &= ~PP_OVERDRIVE_MASK;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if ((amdgpu_ip_block_mask & (1 << i)) == 0) {
+			DRM_ERROR("disabled ip block: %d <%s>\n",
+				  i, adev->ip_blocks[i].version->funcs->name);
+			adev->ip_blocks[i].status.valid = false;
+		} else {
+			if (adev->ip_blocks[i].version->funcs->early_init) {
+				r = adev->ip_blocks[i].version->funcs->early_init((void *)adev);
+				if (r == -ENOENT) {
+					adev->ip_blocks[i].status.valid = false;
+				} else if (r) {
+					DRM_ERROR("early_init of IP block <%s> failed %d\n",
+						  adev->ip_blocks[i].version->funcs->name, r);
+					return r;
+				} else {
+					adev->ip_blocks[i].status.valid = true;
+				}
+			} else {
+				adev->ip_blocks[i].status.valid = true;
+			}
+		}
+		/* get the vbios after the asic_funcs are set up */
+		if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON) {
+			r = amdgpu_device_parse_gpu_info_fw(adev);
+			if (r)
+				return r;
+
+			/* Read BIOS */
+			if (!amdgpu_get_bios(adev))
+				return -EINVAL;
+
+			r = amdgpu_atombios_init(adev);
+			if (r) {
+				dev_err(adev->dev, "amdgpu_atombios_init failed\n");
+				amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0);
+				return r;
+			}
+
+			/*get pf2vf msg info at it's earliest time*/
+			if (amdgpu_sriov_vf(adev))
+				amdgpu_virt_init_data_exchange(adev);
+
+		}
+	}
+
+	adev->cg_flags &= amdgpu_cg_mask;
+	adev->pg_flags &= amdgpu_pg_mask;
+
+	return 0;
+}
+
+static int amdgpu_device_ip_hw_init_phase1(struct amdgpu_device *adev)
+{
+	int i, r;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.sw)
+			continue;
+		if (adev->ip_blocks[i].status.hw)
+			continue;
+		if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
+		    (amdgpu_sriov_vf(adev) && (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP)) ||
+		    adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH) {
+			r = adev->ip_blocks[i].version->funcs->hw_init(adev);
+			if (r) {
+				DRM_ERROR("hw_init of IP block <%s> failed %d\n",
+					  adev->ip_blocks[i].version->funcs->name, r);
+				return r;
+			}
+			adev->ip_blocks[i].status.hw = true;
+		}
+	}
+
+	return 0;
+}
+
+static int amdgpu_device_ip_hw_init_phase2(struct amdgpu_device *adev)
+{
+	int i, r;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.sw)
+			continue;
+		if (adev->ip_blocks[i].status.hw)
+			continue;
+		r = adev->ip_blocks[i].version->funcs->hw_init(adev);
+		if (r) {
+			DRM_ERROR("hw_init of IP block <%s> failed %d\n",
+				  adev->ip_blocks[i].version->funcs->name, r);
+			return r;
+		}
+		adev->ip_blocks[i].status.hw = true;
+	}
+
+	return 0;
+}
+
+static int amdgpu_device_fw_loading(struct amdgpu_device *adev)
+{
+	int r = 0;
+	int i;
+	uint32_t smu_version;
+
+	if (adev->asic_type >= CHIP_VEGA10) {
+		for (i = 0; i < adev->num_ip_blocks; i++) {
+			if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_PSP)
+				continue;
+
+			if (!adev->ip_blocks[i].status.sw)
+				continue;
+
+			/* no need to do the fw loading again if already done*/
+			if (adev->ip_blocks[i].status.hw == true)
+				break;
+
+			if (amdgpu_in_reset(adev) || adev->in_suspend) {
+				r = adev->ip_blocks[i].version->funcs->resume(adev);
+				if (r) {
+					DRM_ERROR("resume of IP block <%s> failed %d\n",
+							  adev->ip_blocks[i].version->funcs->name, r);
+					return r;
+				}
+			} else {
+				r = adev->ip_blocks[i].version->funcs->hw_init(adev);
+				if (r) {
+					DRM_ERROR("hw_init of IP block <%s> failed %d\n",
+							  adev->ip_blocks[i].version->funcs->name, r);
+					return r;
+				}
+			}
+
+			adev->ip_blocks[i].status.hw = true;
+			break;
+		}
+	}
+
+	if (!amdgpu_sriov_vf(adev) || adev->asic_type == CHIP_TONGA)
+		r = amdgpu_pm_load_smu_firmware(adev, &smu_version);
+
+	return r;
+}
+
+static int amdgpu_device_init_schedulers(struct amdgpu_device *adev)
+{
+	long timeout;
+	int r, i;
+
+	for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
+		struct amdgpu_ring *ring = adev->rings[i];
+
+		/* No need to setup the GPU scheduler for rings that don't need it */
+		if (!ring || ring->no_scheduler)
+			continue;
+
+		switch (ring->funcs->type) {
+		case AMDGPU_RING_TYPE_GFX:
+			timeout = adev->gfx_timeout;
+			break;
+		case AMDGPU_RING_TYPE_COMPUTE:
+			timeout = adev->compute_timeout;
+			break;
+		case AMDGPU_RING_TYPE_SDMA:
+			timeout = adev->sdma_timeout;
+			break;
+		default:
+			timeout = adev->video_timeout;
+			break;
+		}
+
+		r = drm_sched_init(&ring->sched, &amdgpu_sched_ops,
+				   ring->num_hw_submission, amdgpu_job_hang_limit,
+				   timeout, adev->reset_domain->wq,
+				   ring->sched_score, ring->name,
+				   adev->dev);
+		if (r) {
+			DRM_ERROR("Failed to create scheduler on ring %s.\n",
+				  ring->name);
+			return r;
+		}
+	}
+
+	return 0;
+}
+
+
+/**
+ * amdgpu_device_ip_init - run init for hardware IPs
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Main initialization pass for hardware IPs.  The list of all the hardware
+ * IPs that make up the asic is walked and the sw_init and hw_init callbacks
+ * are run.  sw_init initializes the software state associated with each IP
+ * and hw_init initializes the hardware associated with each IP.
+ * Returns 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_ip_init(struct amdgpu_device *adev)
+{
+	int i, r;
+
+	r = amdgpu_ras_init(adev);
+	if (r)
+		return r;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+		r = adev->ip_blocks[i].version->funcs->sw_init((void *)adev);
+		if (r) {
+			DRM_ERROR("sw_init of IP block <%s> failed %d\n",
+				  adev->ip_blocks[i].version->funcs->name, r);
+			goto init_failed;
+		}
+		adev->ip_blocks[i].status.sw = true;
+
+		if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON) {
+			/* need to do common hw init early so everything is set up for gmc */
+			r = adev->ip_blocks[i].version->funcs->hw_init((void *)adev);
+			if (r) {
+				DRM_ERROR("hw_init %d failed %d\n", i, r);
+				goto init_failed;
+			}
+			adev->ip_blocks[i].status.hw = true;
+		} else if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
+			/* need to do gmc hw init early so we can allocate gpu mem */
+			/* Try to reserve bad pages early */
+			if (amdgpu_sriov_vf(adev))
+				amdgpu_virt_exchange_data(adev);
+
+			r = amdgpu_device_vram_scratch_init(adev);
+			if (r) {
+				DRM_ERROR("amdgpu_vram_scratch_init failed %d\n", r);
+				goto init_failed;
+			}
+			r = adev->ip_blocks[i].version->funcs->hw_init((void *)adev);
+			if (r) {
+				DRM_ERROR("hw_init %d failed %d\n", i, r);
+				goto init_failed;
+			}
+			r = amdgpu_device_wb_init(adev);
+			if (r) {
+				DRM_ERROR("amdgpu_device_wb_init failed %d\n", r);
+				goto init_failed;
+			}
+			adev->ip_blocks[i].status.hw = true;
+
+			/* right after GMC hw init, we create CSA */
+			if (amdgpu_mcbp || amdgpu_sriov_vf(adev)) {
+				r = amdgpu_allocate_static_csa(adev, &adev->virt.csa_obj,
+								AMDGPU_GEM_DOMAIN_VRAM,
+								AMDGPU_CSA_SIZE);
+				if (r) {
+					DRM_ERROR("allocate CSA failed %d\n", r);
+					goto init_failed;
+				}
+			}
+		}
+	}
+
+	if (amdgpu_sriov_vf(adev))
+		amdgpu_virt_init_data_exchange(adev);
+
+	r = amdgpu_ib_pool_init(adev);
+	if (r) {
+		dev_err(adev->dev, "IB initialization failed (%d).\n", r);
+		amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_IB_INIT_FAIL, 0, r);
+		goto init_failed;
+	}
+
+	r = amdgpu_ucode_create_bo(adev); /* create ucode bo when sw_init complete*/
+	if (r)
+		goto init_failed;
+
+	r = amdgpu_device_ip_hw_init_phase1(adev);
+	if (r)
+		goto init_failed;
+
+	r = amdgpu_device_fw_loading(adev);
+	if (r)
+		goto init_failed;
+
+	r = amdgpu_device_ip_hw_init_phase2(adev);
+	if (r)
+		goto init_failed;
+
+	/*
+	 * retired pages will be loaded from eeprom and reserved here,
+	 * it should be called after amdgpu_device_ip_hw_init_phase2  since
+	 * for some ASICs the RAS EEPROM code relies on SMU fully functioning
+	 * for I2C communication which only true at this point.
+	 *
+	 * amdgpu_ras_recovery_init may fail, but the upper only cares the
+	 * failure from bad gpu situation and stop amdgpu init process
+	 * accordingly. For other failed cases, it will still release all
+	 * the resource and print error message, rather than returning one
+	 * negative value to upper level.
+	 *
+	 * Note: theoretically, this should be called before all vram allocations
+	 * to protect retired page from abusing
+	 */
+	r = amdgpu_ras_recovery_init(adev);
+	if (r)
+		goto init_failed;
+
+	/**
+	 * In case of XGMI grab extra reference for reset domain for this device
+	 */
+	if (adev->gmc.xgmi.num_physical_nodes > 1) {
+		if (amdgpu_xgmi_add_device(adev) == 0) {
+			if (!amdgpu_sriov_vf(adev)) {
+				struct amdgpu_hive_info *hive = amdgpu_get_xgmi_hive(adev);
+
+				if (WARN_ON(!hive)) {
+					r = -ENOENT;
+					goto init_failed;
+				}
+
+				if (!hive->reset_domain ||
+				    !amdgpu_reset_get_reset_domain(hive->reset_domain)) {
+					r = -ENOENT;
+					amdgpu_put_xgmi_hive(hive);
+					goto init_failed;
+				}
+
+				/* Drop the early temporary reset domain we created for device */
+				amdgpu_reset_put_reset_domain(adev->reset_domain);
+				adev->reset_domain = hive->reset_domain;
+				amdgpu_put_xgmi_hive(hive);
+			}
+		}
+	}
+
+	r = amdgpu_device_init_schedulers(adev);
+	if (r)
+		goto init_failed;
+
+	/* Don't init kfd if whole hive need to be reset during init */
+	if (!adev->gmc.xgmi.pending_reset)
+		amdgpu_amdkfd_device_init(adev);
+
+	amdgpu_fru_get_product_info(adev);
+
+init_failed:
+
+	return r;
+}
+
+/**
+ * amdgpu_device_fill_reset_magic - writes reset magic to gart pointer
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Writes a reset magic value to the gart pointer in VRAM.  The driver calls
+ * this function before a GPU reset.  If the value is retained after a
+ * GPU reset, VRAM has not been lost.  Some GPU resets may destry VRAM contents.
+ */
+static void amdgpu_device_fill_reset_magic(struct amdgpu_device *adev)
+{
+	memcpy(adev->reset_magic, adev->gart.ptr, AMDGPU_RESET_MAGIC_NUM);
+}
+
+/**
+ * amdgpu_device_check_vram_lost - check if vram is valid
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Checks the reset magic value written to the gart pointer in VRAM.
+ * The driver calls this after a GPU reset to see if the contents of
+ * VRAM is lost or now.
+ * returns true if vram is lost, false if not.
+ */
+static bool amdgpu_device_check_vram_lost(struct amdgpu_device *adev)
+{
+	if (memcmp(adev->gart.ptr, adev->reset_magic,
+			AMDGPU_RESET_MAGIC_NUM))
+		return true;
+
+	if (!amdgpu_in_reset(adev))
+		return false;
+
+	/*
+	 * For all ASICs with baco/mode1 reset, the VRAM is
+	 * always assumed to be lost.
+	 */
+	switch (amdgpu_asic_reset_method(adev)) {
+	case AMD_RESET_METHOD_BACO:
+	case AMD_RESET_METHOD_MODE1:
+		return true;
+	default:
+		return false;
+	}
+}
+
+/**
+ * amdgpu_device_set_cg_state - set clockgating for amdgpu device
+ *
+ * @adev: amdgpu_device pointer
+ * @state: clockgating state (gate or ungate)
+ *
+ * The list of all the hardware IPs that make up the asic is walked and the
+ * set_clockgating_state callbacks are run.
+ * Late initialization pass enabling clockgating for hardware IPs.
+ * Fini or suspend, pass disabling clockgating for hardware IPs.
+ * Returns 0 on success, negative error code on failure.
+ */
+
+int amdgpu_device_set_cg_state(struct amdgpu_device *adev,
+			       enum amd_clockgating_state state)
+{
+	int i, j, r;
+
+	if (amdgpu_emu_mode == 1)
+		return 0;
+
+	for (j = 0; j < adev->num_ip_blocks; j++) {
+		i = state == AMD_CG_STATE_GATE ? j : adev->num_ip_blocks - j - 1;
+		if (!adev->ip_blocks[i].status.late_initialized)
+			continue;
+		/* skip CG for GFX on S0ix */
+		if (adev->in_s0ix &&
+		    adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GFX)
+			continue;
+		/* skip CG for VCE/UVD, it's handled specially */
+		if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD &&
+		    adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE &&
+		    adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCN &&
+		    adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_JPEG &&
+		    adev->ip_blocks[i].version->funcs->set_clockgating_state) {
+			/* enable clockgating to save power */
+			r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev,
+										     state);
+			if (r) {
+				DRM_ERROR("set_clockgating_state(gate) of IP block <%s> failed %d\n",
+					  adev->ip_blocks[i].version->funcs->name, r);
+				return r;
+			}
+		}
+	}
+
+	return 0;
+}
+
+int amdgpu_device_set_pg_state(struct amdgpu_device *adev,
+			       enum amd_powergating_state state)
+{
+	int i, j, r;
+
+	if (amdgpu_emu_mode == 1)
+		return 0;
+
+	for (j = 0; j < adev->num_ip_blocks; j++) {
+		i = state == AMD_PG_STATE_GATE ? j : adev->num_ip_blocks - j - 1;
+		if (!adev->ip_blocks[i].status.late_initialized)
+			continue;
+		/* skip PG for GFX on S0ix */
+		if (adev->in_s0ix &&
+		    adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GFX)
+			continue;
+		/* skip CG for VCE/UVD, it's handled specially */
+		if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD &&
+		    adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE &&
+		    adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCN &&
+		    adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_JPEG &&
+		    adev->ip_blocks[i].version->funcs->set_powergating_state) {
+			/* enable powergating to save power */
+			r = adev->ip_blocks[i].version->funcs->set_powergating_state((void *)adev,
+											state);
+			if (r) {
+				DRM_ERROR("set_powergating_state(gate) of IP block <%s> failed %d\n",
+					  adev->ip_blocks[i].version->funcs->name, r);
+				return r;
+			}
+		}
+	}
+	return 0;
+}
+
+static int amdgpu_device_enable_mgpu_fan_boost(void)
+{
+	struct amdgpu_gpu_instance *gpu_ins;
+	struct amdgpu_device *adev;
+	int i, ret = 0;
+
+	mutex_lock(&mgpu_info.mutex);
+
+	/*
+	 * MGPU fan boost feature should be enabled
+	 * only when there are two or more dGPUs in
+	 * the system
+	 */
+	if (mgpu_info.num_dgpu < 2)
+		goto out;
+
+	for (i = 0; i < mgpu_info.num_dgpu; i++) {
+		gpu_ins = &(mgpu_info.gpu_ins[i]);
+		adev = gpu_ins->adev;
+		if (!(adev->flags & AMD_IS_APU) &&
+		    !gpu_ins->mgpu_fan_enabled) {
+			ret = amdgpu_dpm_enable_mgpu_fan_boost(adev);
+			if (ret)
+				break;
+
+			gpu_ins->mgpu_fan_enabled = 1;
+		}
+	}
+
+out:
+	mutex_unlock(&mgpu_info.mutex);
+
+	return ret;
+}
+
+/**
+ * amdgpu_device_ip_late_init - run late init for hardware IPs
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Late initialization pass for hardware IPs.  The list of all the hardware
+ * IPs that make up the asic is walked and the late_init callbacks are run.
+ * late_init covers any special initialization that an IP requires
+ * after all of the have been initialized or something that needs to happen
+ * late in the init process.
+ * Returns 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_ip_late_init(struct amdgpu_device *adev)
+{
+	struct amdgpu_gpu_instance *gpu_instance;
+	int i = 0, r;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.hw)
+			continue;
+		if (adev->ip_blocks[i].version->funcs->late_init) {
+			r = adev->ip_blocks[i].version->funcs->late_init((void *)adev);
+			if (r) {
+				DRM_ERROR("late_init of IP block <%s> failed %d\n",
+					  adev->ip_blocks[i].version->funcs->name, r);
+				return r;
+			}
+		}
+		adev->ip_blocks[i].status.late_initialized = true;
+	}
+
+	r = amdgpu_ras_late_init(adev);
+	if (r) {
+		DRM_ERROR("amdgpu_ras_late_init failed %d", r);
+		return r;
+	}
+
+	amdgpu_ras_set_error_query_ready(adev, true);
+
+	amdgpu_device_set_cg_state(adev, AMD_CG_STATE_GATE);
+	amdgpu_device_set_pg_state(adev, AMD_PG_STATE_GATE);
+
+	amdgpu_device_fill_reset_magic(adev);
+
+	r = amdgpu_device_enable_mgpu_fan_boost();
+	if (r)
+		DRM_ERROR("enable mgpu fan boost failed (%d).\n", r);
+
+	/* For passthrough configuration on arcturus and aldebaran, enable special handling SBR */
+	if (amdgpu_passthrough(adev) && ((adev->asic_type == CHIP_ARCTURUS && adev->gmc.xgmi.num_physical_nodes > 1)||
+			       adev->asic_type == CHIP_ALDEBARAN ))
+		amdgpu_dpm_handle_passthrough_sbr(adev, true);
+
+	if (adev->gmc.xgmi.num_physical_nodes > 1) {
+		mutex_lock(&mgpu_info.mutex);
+
+		/*
+		 * Reset device p-state to low as this was booted with high.
+		 *
+		 * This should be performed only after all devices from the same
+		 * hive get initialized.
+		 *
+		 * However, it's unknown how many device in the hive in advance.
+		 * As this is counted one by one during devices initializations.
+		 *
+		 * So, we wait for all XGMI interlinked devices initialized.
+		 * This may bring some delays as those devices may come from
+		 * different hives. But that should be OK.
+		 */
+		if (mgpu_info.num_dgpu == adev->gmc.xgmi.num_physical_nodes) {
+			for (i = 0; i < mgpu_info.num_gpu; i++) {
+				gpu_instance = &(mgpu_info.gpu_ins[i]);
+				if (gpu_instance->adev->flags & AMD_IS_APU)
+					continue;
+
+				r = amdgpu_xgmi_set_pstate(gpu_instance->adev,
+						AMDGPU_XGMI_PSTATE_MIN);
+				if (r) {
+					DRM_ERROR("pstate setting failed (%d).\n", r);
+					break;
+				}
+			}
+		}
+
+		mutex_unlock(&mgpu_info.mutex);
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_smu_fini_early - smu hw_fini wrapper
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * For ASICs need to disable SMC first
+ */
+static void amdgpu_device_smu_fini_early(struct amdgpu_device *adev)
+{
+	int i, r;
+
+	if (adev->ip_versions[GC_HWIP][0] > IP_VERSION(9, 0, 0))
+		return;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.hw)
+			continue;
+		if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) {
+			r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev);
+			/* XXX handle errors */
+			if (r) {
+				DRM_DEBUG("hw_fini of IP block <%s> failed %d\n",
+					  adev->ip_blocks[i].version->funcs->name, r);
+			}
+			adev->ip_blocks[i].status.hw = false;
+			break;
+		}
+	}
+}
+
+static int amdgpu_device_ip_fini_early(struct amdgpu_device *adev)
+{
+	int i, r;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].version->funcs->early_fini)
+			continue;
+
+		r = adev->ip_blocks[i].version->funcs->early_fini((void *)adev);
+		if (r) {
+			DRM_DEBUG("early_fini of IP block <%s> failed %d\n",
+				  adev->ip_blocks[i].version->funcs->name, r);
+		}
+	}
+
+	amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE);
+	amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE);
+
+	amdgpu_amdkfd_suspend(adev, false);
+
+	/* Workaroud for ASICs need to disable SMC first */
+	amdgpu_device_smu_fini_early(adev);
+
+	for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
+		if (!adev->ip_blocks[i].status.hw)
+			continue;
+
+		r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev);
+		/* XXX handle errors */
+		if (r) {
+			DRM_DEBUG("hw_fini of IP block <%s> failed %d\n",
+				  adev->ip_blocks[i].version->funcs->name, r);
+		}
+
+		adev->ip_blocks[i].status.hw = false;
+	}
+
+	if (amdgpu_sriov_vf(adev)) {
+		if (amdgpu_virt_release_full_gpu(adev, false))
+			DRM_ERROR("failed to release exclusive mode on fini\n");
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_ip_fini - run fini for hardware IPs
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Main teardown pass for hardware IPs.  The list of all the hardware
+ * IPs that make up the asic is walked and the hw_fini and sw_fini callbacks
+ * are run.  hw_fini tears down the hardware associated with each IP
+ * and sw_fini tears down any software state associated with each IP.
+ * Returns 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_ip_fini(struct amdgpu_device *adev)
+{
+	int i, r;
+
+	if (amdgpu_sriov_vf(adev) && adev->virt.ras_init_done)
+		amdgpu_virt_release_ras_err_handler_data(adev);
+
+	if (adev->gmc.xgmi.num_physical_nodes > 1)
+		amdgpu_xgmi_remove_device(adev);
+
+	amdgpu_amdkfd_device_fini_sw(adev);
+
+	for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
+		if (!adev->ip_blocks[i].status.sw)
+			continue;
+
+		if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
+			amdgpu_ucode_free_bo(adev);
+			amdgpu_free_static_csa(&adev->virt.csa_obj);
+			amdgpu_device_wb_fini(adev);
+			amdgpu_device_vram_scratch_fini(adev);
+			amdgpu_ib_pool_fini(adev);
+		}
+
+		r = adev->ip_blocks[i].version->funcs->sw_fini((void *)adev);
+		/* XXX handle errors */
+		if (r) {
+			DRM_DEBUG("sw_fini of IP block <%s> failed %d\n",
+				  adev->ip_blocks[i].version->funcs->name, r);
+		}
+		adev->ip_blocks[i].status.sw = false;
+		adev->ip_blocks[i].status.valid = false;
+	}
+
+	for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
+		if (!adev->ip_blocks[i].status.late_initialized)
+			continue;
+		if (adev->ip_blocks[i].version->funcs->late_fini)
+			adev->ip_blocks[i].version->funcs->late_fini((void *)adev);
+		adev->ip_blocks[i].status.late_initialized = false;
+	}
+
+	amdgpu_ras_fini(adev);
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_delayed_init_work_handler - work handler for IB tests
+ *
+ * @work: work_struct.
+ */
+static void amdgpu_device_delayed_init_work_handler(struct work_struct *work)
+{
+	struct amdgpu_device *adev =
+		container_of(work, struct amdgpu_device, delayed_init_work.work);
+	int r;
+
+	r = amdgpu_ib_ring_tests(adev);
+	if (r)
+		DRM_ERROR("ib ring test failed (%d).\n", r);
+}
+
+static void amdgpu_device_delay_enable_gfx_off(struct work_struct *work)
+{
+	struct amdgpu_device *adev =
+		container_of(work, struct amdgpu_device, gfx.gfx_off_delay_work.work);
+
+	WARN_ON_ONCE(adev->gfx.gfx_off_state);
+	WARN_ON_ONCE(adev->gfx.gfx_off_req_count);
+
+	if (!amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GFX, true))
+		adev->gfx.gfx_off_state = true;
+}
+
+/**
+ * amdgpu_device_ip_suspend_phase1 - run suspend for hardware IPs (phase 1)
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Main suspend function for hardware IPs.  The list of all the hardware
+ * IPs that make up the asic is walked, clockgating is disabled and the
+ * suspend callbacks are run.  suspend puts the hardware and software state
+ * in each IP into a state suitable for suspend.
+ * Returns 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_ip_suspend_phase1(struct amdgpu_device *adev)
+{
+	int i, r;
+
+	amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE);
+	amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE);
+
+	/*
+	 * Per PMFW team's suggestion, driver needs to handle gfxoff
+	 * and df cstate features disablement for gpu reset(e.g. Mode1Reset)
+	 * scenario. Add the missing df cstate disablement here.
+	 */
+	if (amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_DISALLOW))
+		dev_warn(adev->dev, "Failed to disallow df cstate");
+
+	for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+
+		/* displays are handled separately */
+		if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_DCE)
+			continue;
+
+		/* XXX handle errors */
+		r = adev->ip_blocks[i].version->funcs->suspend(adev);
+		/* XXX handle errors */
+		if (r) {
+			DRM_ERROR("suspend of IP block <%s> failed %d\n",
+				  adev->ip_blocks[i].version->funcs->name, r);
+			return r;
+		}
+
+		adev->ip_blocks[i].status.hw = false;
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_ip_suspend_phase2 - run suspend for hardware IPs (phase 2)
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Main suspend function for hardware IPs.  The list of all the hardware
+ * IPs that make up the asic is walked, clockgating is disabled and the
+ * suspend callbacks are run.  suspend puts the hardware and software state
+ * in each IP into a state suitable for suspend.
+ * Returns 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_ip_suspend_phase2(struct amdgpu_device *adev)
+{
+	int i, r;
+
+	if (adev->in_s0ix)
+		amdgpu_dpm_gfx_state_change(adev, sGpuChangeState_D3Entry);
+
+	for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+		/* displays are handled in phase1 */
+		if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE)
+			continue;
+		/* PSP lost connection when err_event_athub occurs */
+		if (amdgpu_ras_intr_triggered() &&
+		    adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP) {
+			adev->ip_blocks[i].status.hw = false;
+			continue;
+		}
+
+		/* skip unnecessary suspend if we do not initialize them yet */
+		if (adev->gmc.xgmi.pending_reset &&
+		    !(adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
+		      adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC ||
+		      adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
+		      adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH)) {
+			adev->ip_blocks[i].status.hw = false;
+			continue;
+		}
+
+		/* skip suspend of gfx/mes and psp for S0ix
+		 * gfx is in gfxoff state, so on resume it will exit gfxoff just
+		 * like at runtime. PSP is also part of the always on hardware
+		 * so no need to suspend it.
+		 */
+		if (adev->in_s0ix &&
+		    (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP ||
+		     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GFX ||
+		     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_MES))
+			continue;
+
+		/* SDMA 5.x+ is part of GFX power domain so it's covered by GFXOFF */
+		if (adev->in_s0ix &&
+		    (adev->ip_versions[SDMA0_HWIP][0] >= IP_VERSION(5, 0, 0)) &&
+		    (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SDMA))
+			continue;
+
+		/* Once swPSP provides the IMU, RLC FW binaries to TOS during cold-boot.
+		 * These are in TMR, hence are expected to be reused by PSP-TOS to reload
+		 * from this location and RLC Autoload automatically also gets loaded
+		 * from here based on PMFW -> PSP message during re-init sequence.
+		 * Therefore, the psp suspend & resume should be skipped to avoid destroy
+		 * the TMR and reload FWs again for IMU enabled APU ASICs.
+		 */
+		if (amdgpu_in_reset(adev) &&
+		    (adev->flags & AMD_IS_APU) && adev->gfx.imu.funcs &&
+		    adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP)
+			continue;
+
+		/* XXX handle errors */
+		r = adev->ip_blocks[i].version->funcs->suspend(adev);
+		/* XXX handle errors */
+		if (r) {
+			DRM_ERROR("suspend of IP block <%s> failed %d\n",
+				  adev->ip_blocks[i].version->funcs->name, r);
+		}
+		adev->ip_blocks[i].status.hw = false;
+		/* handle putting the SMC in the appropriate state */
+		if(!amdgpu_sriov_vf(adev)){
+			if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) {
+				r = amdgpu_dpm_set_mp1_state(adev, adev->mp1_state);
+				if (r) {
+					DRM_ERROR("SMC failed to set mp1 state %d, %d\n",
+							adev->mp1_state, r);
+					return r;
+				}
+			}
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_ip_suspend - run suspend for hardware IPs
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Main suspend function for hardware IPs.  The list of all the hardware
+ * IPs that make up the asic is walked, clockgating is disabled and the
+ * suspend callbacks are run.  suspend puts the hardware and software state
+ * in each IP into a state suitable for suspend.
+ * Returns 0 on success, negative error code on failure.
+ */
+int amdgpu_device_ip_suspend(struct amdgpu_device *adev)
+{
+	int r;
+
+	if (amdgpu_sriov_vf(adev)) {
+		amdgpu_virt_fini_data_exchange(adev);
+		amdgpu_virt_request_full_gpu(adev, false);
+	}
+
+	r = amdgpu_device_ip_suspend_phase1(adev);
+	if (r)
+		return r;
+	r = amdgpu_device_ip_suspend_phase2(adev);
+
+	if (amdgpu_sriov_vf(adev))
+		amdgpu_virt_release_full_gpu(adev, false);
+
+	return r;
+}
+
+static int amdgpu_device_ip_reinit_early_sriov(struct amdgpu_device *adev)
+{
+	int i, r;
+
+	static enum amd_ip_block_type ip_order[] = {
+		AMD_IP_BLOCK_TYPE_COMMON,
+		AMD_IP_BLOCK_TYPE_GMC,
+		AMD_IP_BLOCK_TYPE_PSP,
+		AMD_IP_BLOCK_TYPE_IH,
+	};
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		int j;
+		struct amdgpu_ip_block *block;
+
+		block = &adev->ip_blocks[i];
+		block->status.hw = false;
+
+		for (j = 0; j < ARRAY_SIZE(ip_order); j++) {
+
+			if (block->version->type != ip_order[j] ||
+				!block->status.valid)
+				continue;
+
+			r = block->version->funcs->hw_init(adev);
+			DRM_INFO("RE-INIT-early: %s %s\n", block->version->funcs->name, r?"failed":"succeeded");
+			if (r)
+				return r;
+			block->status.hw = true;
+		}
+	}
+
+	return 0;
+}
+
+static int amdgpu_device_ip_reinit_late_sriov(struct amdgpu_device *adev)
+{
+	int i, r;
+
+	static enum amd_ip_block_type ip_order[] = {
+		AMD_IP_BLOCK_TYPE_SMC,
+		AMD_IP_BLOCK_TYPE_DCE,
+		AMD_IP_BLOCK_TYPE_GFX,
+		AMD_IP_BLOCK_TYPE_SDMA,
+		AMD_IP_BLOCK_TYPE_UVD,
+		AMD_IP_BLOCK_TYPE_VCE,
+		AMD_IP_BLOCK_TYPE_VCN
+	};
+
+	for (i = 0; i < ARRAY_SIZE(ip_order); i++) {
+		int j;
+		struct amdgpu_ip_block *block;
+
+		for (j = 0; j < adev->num_ip_blocks; j++) {
+			block = &adev->ip_blocks[j];
+
+			if (block->version->type != ip_order[i] ||
+				!block->status.valid ||
+				block->status.hw)
+				continue;
+
+			if (block->version->type == AMD_IP_BLOCK_TYPE_SMC)
+				r = block->version->funcs->resume(adev);
+			else
+				r = block->version->funcs->hw_init(adev);
+
+			DRM_INFO("RE-INIT-late: %s %s\n", block->version->funcs->name, r?"failed":"succeeded");
+			if (r)
+				return r;
+			block->status.hw = true;
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_ip_resume_phase1 - run resume for hardware IPs
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * First resume function for hardware IPs.  The list of all the hardware
+ * IPs that make up the asic is walked and the resume callbacks are run for
+ * COMMON, GMC, and IH.  resume puts the hardware into a functional state
+ * after a suspend and updates the software state as necessary.  This
+ * function is also used for restoring the GPU after a GPU reset.
+ * Returns 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_ip_resume_phase1(struct amdgpu_device *adev)
+{
+	int i, r;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid || adev->ip_blocks[i].status.hw)
+			continue;
+		if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
+		    adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
+		    adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH ||
+		    (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP && amdgpu_sriov_vf(adev))) {
+
+			r = adev->ip_blocks[i].version->funcs->resume(adev);
+			if (r) {
+				DRM_ERROR("resume of IP block <%s> failed %d\n",
+					  adev->ip_blocks[i].version->funcs->name, r);
+				return r;
+			}
+			adev->ip_blocks[i].status.hw = true;
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_ip_resume_phase2 - run resume for hardware IPs
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * First resume function for hardware IPs.  The list of all the hardware
+ * IPs that make up the asic is walked and the resume callbacks are run for
+ * all blocks except COMMON, GMC, and IH.  resume puts the hardware into a
+ * functional state after a suspend and updates the software state as
+ * necessary.  This function is also used for restoring the GPU after a GPU
+ * reset.
+ * Returns 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_ip_resume_phase2(struct amdgpu_device *adev)
+{
+	int i, r;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid || adev->ip_blocks[i].status.hw)
+			continue;
+		if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
+		    adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
+		    adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH ||
+		    adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP)
+			continue;
+		r = adev->ip_blocks[i].version->funcs->resume(adev);
+		if (r) {
+			DRM_ERROR("resume of IP block <%s> failed %d\n",
+				  adev->ip_blocks[i].version->funcs->name, r);
+			return r;
+		}
+		adev->ip_blocks[i].status.hw = true;
+
+		if (adev->in_s0ix && adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) {
+			/* disable gfxoff for IP resume. The gfxoff will be re-enabled in
+			 * amdgpu_device_resume() after IP resume.
+			 */
+			amdgpu_gfx_off_ctrl(adev, false);
+			DRM_DEBUG("will disable gfxoff for re-initializing other blocks\n");
+		}
+
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_ip_resume - run resume for hardware IPs
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Main resume function for hardware IPs.  The hardware IPs
+ * are split into two resume functions because they are
+ * are also used in in recovering from a GPU reset and some additional
+ * steps need to be take between them.  In this case (S3/S4) they are
+ * run sequentially.
+ * Returns 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_ip_resume(struct amdgpu_device *adev)
+{
+	int r;
+
+	r = amdgpu_amdkfd_resume_iommu(adev);
+	if (r)
+		return r;
+
+	r = amdgpu_device_ip_resume_phase1(adev);
+	if (r)
+		return r;
+
+	r = amdgpu_device_fw_loading(adev);
+	if (r)
+		return r;
+
+	r = amdgpu_device_ip_resume_phase2(adev);
+
+	return r;
+}
+
+/**
+ * amdgpu_device_detect_sriov_bios - determine if the board supports SR-IOV
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Query the VBIOS data tables to determine if the board supports SR-IOV.
+ */
+static void amdgpu_device_detect_sriov_bios(struct amdgpu_device *adev)
+{
+	if (amdgpu_sriov_vf(adev)) {
+		if (adev->is_atom_fw) {
+			if (amdgpu_atomfirmware_gpu_virtualization_supported(adev))
+				adev->virt.caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS;
+		} else {
+			if (amdgpu_atombios_has_gpu_virtualization_table(adev))
+				adev->virt.caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS;
+		}
+
+		if (!(adev->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS))
+			amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_NO_VBIOS, 0, 0);
+	}
+}
+
+/**
+ * amdgpu_device_asic_has_dc_support - determine if DC supports the asic
+ *
+ * @asic_type: AMD asic type
+ *
+ * Check if there is DC (new modesetting infrastructre) support for an asic.
+ * returns true if DC has support, false if not.
+ */
+bool amdgpu_device_asic_has_dc_support(enum amd_asic_type asic_type)
+{
+	switch (asic_type) {
+#ifdef CONFIG_DRM_AMDGPU_SI
+	case CHIP_HAINAN:
+#endif
+	case CHIP_TOPAZ:
+		/* chips with no display hardware */
+		return false;
+#if defined(CONFIG_DRM_AMD_DC)
+	case CHIP_TAHITI:
+	case CHIP_PITCAIRN:
+	case CHIP_VERDE:
+	case CHIP_OLAND:
+		/*
+		 * We have systems in the wild with these ASICs that require
+		 * LVDS and VGA support which is not supported with DC.
+		 *
+		 * Fallback to the non-DC driver here by default so as not to
+		 * cause regressions.
+		 */
+#if defined(CONFIG_DRM_AMD_DC_SI)
+		return amdgpu_dc > 0;
+#else
+		return false;
+#endif
+	case CHIP_BONAIRE:
+	case CHIP_KAVERI:
+	case CHIP_KABINI:
+	case CHIP_MULLINS:
+		/*
+		 * We have systems in the wild with these ASICs that require
+		 * VGA support which is not supported with DC.
+		 *
+		 * Fallback to the non-DC driver here by default so as not to
+		 * cause regressions.
+		 */
+		return amdgpu_dc > 0;
+	default:
+		return amdgpu_dc != 0;
+#else
+	default:
+		if (amdgpu_dc > 0)
+			DRM_INFO_ONCE("Display Core has been requested via kernel parameter "
+					 "but isn't supported by ASIC, ignoring\n");
+		return false;
+#endif
+	}
+}
+
+/**
+ * amdgpu_device_has_dc_support - check if dc is supported
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Returns true for supported, false for not supported
+ */
+bool amdgpu_device_has_dc_support(struct amdgpu_device *adev)
+{
+	if (amdgpu_sriov_vf(adev) ||
+	    adev->enable_virtual_display ||
+	    (adev->harvest_ip_mask & AMD_HARVEST_IP_DMU_MASK))
+		return false;
+
+	return amdgpu_device_asic_has_dc_support(adev->asic_type);
+}
+
+static void amdgpu_device_xgmi_reset_func(struct work_struct *__work)
+{
+	struct amdgpu_device *adev =
+		container_of(__work, struct amdgpu_device, xgmi_reset_work);
+	struct amdgpu_hive_info *hive = amdgpu_get_xgmi_hive(adev);
+
+	/* It's a bug to not have a hive within this function */
+	if (WARN_ON(!hive))
+		return;
+
+	/*
+	 * Use task barrier to synchronize all xgmi reset works across the
+	 * hive. task_barrier_enter and task_barrier_exit will block
+	 * until all the threads running the xgmi reset works reach
+	 * those points. task_barrier_full will do both blocks.
+	 */
+	if (amdgpu_asic_reset_method(adev) == AMD_RESET_METHOD_BACO) {
+
+		task_barrier_enter(&hive->tb);
+		adev->asic_reset_res = amdgpu_device_baco_enter(adev_to_drm(adev));
+
+		if (adev->asic_reset_res)
+			goto fail;
+
+		task_barrier_exit(&hive->tb);
+		adev->asic_reset_res = amdgpu_device_baco_exit(adev_to_drm(adev));
+
+		if (adev->asic_reset_res)
+			goto fail;
+
+		if (adev->mmhub.ras && adev->mmhub.ras->ras_block.hw_ops &&
+		    adev->mmhub.ras->ras_block.hw_ops->reset_ras_error_count)
+			adev->mmhub.ras->ras_block.hw_ops->reset_ras_error_count(adev);
+	} else {
+
+		task_barrier_full(&hive->tb);
+		adev->asic_reset_res =  amdgpu_asic_reset(adev);
+	}
+
+fail:
+	if (adev->asic_reset_res)
+		DRM_WARN("ASIC reset failed with error, %d for drm dev, %s",
+			 adev->asic_reset_res, adev_to_drm(adev)->unique);
+	amdgpu_put_xgmi_hive(hive);
+}
+
+static int amdgpu_device_get_job_timeout_settings(struct amdgpu_device *adev)
+{
+	char *input = amdgpu_lockup_timeout;
+	char *timeout_setting = NULL;
+	int index = 0;
+	long timeout;
+	int ret = 0;
+
+	/*
+	 * By default timeout for non compute jobs is 10000
+	 * and 60000 for compute jobs.
+	 * In SR-IOV or passthrough mode, timeout for compute
+	 * jobs are 60000 by default.
+	 */
+	adev->gfx_timeout = msecs_to_jiffies(10000);
+	adev->sdma_timeout = adev->video_timeout = adev->gfx_timeout;
+	if (amdgpu_sriov_vf(adev))
+		adev->compute_timeout = amdgpu_sriov_is_pp_one_vf(adev) ?
+					msecs_to_jiffies(60000) : msecs_to_jiffies(10000);
+	else
+		adev->compute_timeout =  msecs_to_jiffies(60000);
+
+	if (strnlen(input, AMDGPU_MAX_TIMEOUT_PARAM_LENGTH)) {
+		while ((timeout_setting = strsep(&input, ",")) &&
+				strnlen(timeout_setting, AMDGPU_MAX_TIMEOUT_PARAM_LENGTH)) {
+			ret = kstrtol(timeout_setting, 0, &timeout);
+			if (ret)
+				return ret;
+
+			if (timeout == 0) {
+				index++;
+				continue;
+			} else if (timeout < 0) {
+				timeout = MAX_SCHEDULE_TIMEOUT;
+				dev_warn(adev->dev, "lockup timeout disabled");
+				add_taint(TAINT_SOFTLOCKUP, LOCKDEP_STILL_OK);
+			} else {
+				timeout = msecs_to_jiffies(timeout);
+			}
+
+			switch (index++) {
+			case 0:
+				adev->gfx_timeout = timeout;
+				break;
+			case 1:
+				adev->compute_timeout = timeout;
+				break;
+			case 2:
+				adev->sdma_timeout = timeout;
+				break;
+			case 3:
+				adev->video_timeout = timeout;
+				break;
+			default:
+				break;
+			}
+		}
+		/*
+		 * There is only one value specified and
+		 * it should apply to all non-compute jobs.
+		 */
+		if (index == 1) {
+			adev->sdma_timeout = adev->video_timeout = adev->gfx_timeout;
+			if (amdgpu_sriov_vf(adev) || amdgpu_passthrough(adev))
+				adev->compute_timeout = adev->gfx_timeout;
+		}
+	}
+
+	return ret;
+}
+
+/**
+ * amdgpu_device_check_iommu_direct_map - check if RAM direct mapped to GPU
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * RAM direct mapped to GPU if IOMMU is not enabled or is pass through mode
+ */
+static void amdgpu_device_check_iommu_direct_map(struct amdgpu_device *adev)
+{
+	struct iommu_domain *domain;
+
+	domain = iommu_get_domain_for_dev(adev->dev);
+	if (!domain || domain->type == IOMMU_DOMAIN_IDENTITY)
+		adev->ram_is_direct_mapped = true;
+}
+
+static const struct attribute *amdgpu_dev_attributes[] = {
+	&dev_attr_product_name.attr,
+	&dev_attr_product_number.attr,
+	&dev_attr_serial_number.attr,
+	&dev_attr_pcie_replay_count.attr,
+	NULL
+};
+
+/**
+ * amdgpu_device_init - initialize the driver
+ *
+ * @adev: amdgpu_device pointer
+ * @flags: driver flags
+ *
+ * Initializes the driver info and hw (all asics).
+ * Returns 0 for success or an error on failure.
+ * Called at driver startup.
+ */
+int amdgpu_device_init(struct amdgpu_device *adev,
+		       uint32_t flags)
+{
+	struct drm_device *ddev = adev_to_drm(adev);
+	struct pci_dev *pdev = adev->pdev;
+	int r, i;
+	bool px = false;
+	u32 max_MBps;
+	int tmp;
+
+	adev->shutdown = false;
+	adev->flags = flags;
+
+	if (amdgpu_force_asic_type >= 0 && amdgpu_force_asic_type < CHIP_LAST)
+		adev->asic_type = amdgpu_force_asic_type;
+	else
+		adev->asic_type = flags & AMD_ASIC_MASK;
+
+	adev->usec_timeout = AMDGPU_MAX_USEC_TIMEOUT;
+	if (amdgpu_emu_mode == 1)
+		adev->usec_timeout *= 10;
+	adev->gmc.gart_size = 512 * 1024 * 1024;
+	adev->accel_working = false;
+	adev->num_rings = 0;
+	RCU_INIT_POINTER(adev->gang_submit, dma_fence_get_stub());
+	adev->mman.buffer_funcs = NULL;
+	adev->mman.buffer_funcs_ring = NULL;
+	adev->vm_manager.vm_pte_funcs = NULL;
+	adev->vm_manager.vm_pte_num_scheds = 0;
+	adev->gmc.gmc_funcs = NULL;
+	adev->harvest_ip_mask = 0x0;
+	adev->fence_context = dma_fence_context_alloc(AMDGPU_MAX_RINGS);
+	bitmap_zero(adev->gfx.pipe_reserve_bitmap, AMDGPU_MAX_COMPUTE_QUEUES);
+
+	adev->smc_rreg = &amdgpu_invalid_rreg;
+	adev->smc_wreg = &amdgpu_invalid_wreg;
+	adev->pcie_rreg = &amdgpu_invalid_rreg;
+	adev->pcie_wreg = &amdgpu_invalid_wreg;
+	adev->pciep_rreg = &amdgpu_invalid_rreg;
+	adev->pciep_wreg = &amdgpu_invalid_wreg;
+	adev->pcie_rreg64 = &amdgpu_invalid_rreg64;
+	adev->pcie_wreg64 = &amdgpu_invalid_wreg64;
+	adev->uvd_ctx_rreg = &amdgpu_invalid_rreg;
+	adev->uvd_ctx_wreg = &amdgpu_invalid_wreg;
+	adev->didt_rreg = &amdgpu_invalid_rreg;
+	adev->didt_wreg = &amdgpu_invalid_wreg;
+	adev->gc_cac_rreg = &amdgpu_invalid_rreg;
+	adev->gc_cac_wreg = &amdgpu_invalid_wreg;
+	adev->audio_endpt_rreg = &amdgpu_block_invalid_rreg;
+	adev->audio_endpt_wreg = &amdgpu_block_invalid_wreg;
+
+	DRM_INFO("initializing kernel modesetting (%s 0x%04X:0x%04X 0x%04X:0x%04X 0x%02X).\n",
+		 amdgpu_asic_name[adev->asic_type], pdev->vendor, pdev->device,
+		 pdev->subsystem_vendor, pdev->subsystem_device, pdev->revision);
+
+	/* mutex initialization are all done here so we
+	 * can recall function without having locking issues */
+	mutex_init(&adev->firmware.mutex);
+	mutex_init(&adev->pm.mutex);
+	mutex_init(&adev->gfx.gpu_clock_mutex);
+	mutex_init(&adev->srbm_mutex);
+	mutex_init(&adev->gfx.pipe_reserve_mutex);
+	mutex_init(&adev->gfx.gfx_off_mutex);
+	mutex_init(&adev->grbm_idx_mutex);
+	mutex_init(&adev->mn_lock);
+	mutex_init(&adev->virt.vf_errors.lock);
+	hash_init(adev->mn_hash);
+	mutex_init(&adev->psp.mutex);
+	mutex_init(&adev->notifier_lock);
+	mutex_init(&adev->pm.stable_pstate_ctx_lock);
+	mutex_init(&adev->benchmark_mutex);
+
+	amdgpu_device_init_apu_flags(adev);
+
+	r = amdgpu_device_check_arguments(adev);
+	if (r)
+		return r;
+
+	spin_lock_init(&adev->mmio_idx_lock);
+	spin_lock_init(&adev->smc_idx_lock);
+	spin_lock_init(&adev->pcie_idx_lock);
+	spin_lock_init(&adev->uvd_ctx_idx_lock);
+	spin_lock_init(&adev->didt_idx_lock);
+	spin_lock_init(&adev->gc_cac_idx_lock);
+	spin_lock_init(&adev->se_cac_idx_lock);
+	spin_lock_init(&adev->audio_endpt_idx_lock);
+	spin_lock_init(&adev->mm_stats.lock);
+
+	INIT_LIST_HEAD(&adev->shadow_list);
+	mutex_init(&adev->shadow_list_lock);
+
+	INIT_LIST_HEAD(&adev->reset_list);
+
+	INIT_LIST_HEAD(&adev->ras_list);
+
+	INIT_DELAYED_WORK(&adev->delayed_init_work,
+			  amdgpu_device_delayed_init_work_handler);
+	INIT_DELAYED_WORK(&adev->gfx.gfx_off_delay_work,
+			  amdgpu_device_delay_enable_gfx_off);
+
+	INIT_WORK(&adev->xgmi_reset_work, amdgpu_device_xgmi_reset_func);
+
+	adev->gfx.gfx_off_req_count = 1;
+	adev->gfx.gfx_off_residency = 0;
+	adev->gfx.gfx_off_entrycount = 0;
+	adev->pm.ac_power = power_supply_is_system_supplied() > 0;
+
+	atomic_set(&adev->throttling_logging_enabled, 1);
+	/*
+	 * If throttling continues, logging will be performed every minute
+	 * to avoid log flooding. "-1" is subtracted since the thermal
+	 * throttling interrupt comes every second. Thus, the total logging
+	 * interval is 59 seconds(retelimited printk interval) + 1(waiting
+	 * for throttling interrupt) = 60 seconds.
+	 */
+	ratelimit_state_init(&adev->throttling_logging_rs, (60 - 1) * HZ, 1);
+	ratelimit_set_flags(&adev->throttling_logging_rs, RATELIMIT_MSG_ON_RELEASE);
+
+	/* Registers mapping */
+	/* TODO: block userspace mapping of io register */
+	if (adev->asic_type >= CHIP_BONAIRE) {
+		adev->rmmio_base = pci_resource_start(adev->pdev, 5);
+		adev->rmmio_size = pci_resource_len(adev->pdev, 5);
+	} else {
+		adev->rmmio_base = pci_resource_start(adev->pdev, 2);
+		adev->rmmio_size = pci_resource_len(adev->pdev, 2);
+	}
+
+	for (i = 0; i < AMD_IP_BLOCK_TYPE_NUM; i++)
+		atomic_set(&adev->pm.pwr_state[i], POWER_STATE_UNKNOWN);
+
+	adev->rmmio = ioremap(adev->rmmio_base, adev->rmmio_size);
+	if (adev->rmmio == NULL) {
+		return -ENOMEM;
+	}
+	DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)adev->rmmio_base);
+	DRM_INFO("register mmio size: %u\n", (unsigned)adev->rmmio_size);
+
+	amdgpu_device_get_pcie_info(adev);
+
+	if (amdgpu_mcbp)
+		DRM_INFO("MCBP is enabled\n");
+
+	/*
+	 * Reset domain needs to be present early, before XGMI hive discovered
+	 * (if any) and intitialized to use reset sem and in_gpu reset flag
+	 * early on during init and before calling to RREG32.
+	 */
+	adev->reset_domain = amdgpu_reset_create_reset_domain(SINGLE_DEVICE, "amdgpu-reset-dev");
+	if (!adev->reset_domain)
+		return -ENOMEM;
+
+	/* detect hw virtualization here */
+	amdgpu_detect_virtualization(adev);
+
+	r = amdgpu_device_get_job_timeout_settings(adev);
+	if (r) {
+		dev_err(adev->dev, "invalid lockup_timeout parameter syntax\n");
+		return r;
+	}
+
+	/* early init functions */
+	r = amdgpu_device_ip_early_init(adev);
+	if (r)
+		return r;
+
+	/* Get rid of things like offb */
+	r = drm_aperture_remove_conflicting_pci_framebuffers(adev->pdev, &amdgpu_kms_driver);
+	if (r)
+		return r;
+
+	/* Enable TMZ based on IP_VERSION */
+	amdgpu_gmc_tmz_set(adev);
+
+	amdgpu_gmc_noretry_set(adev);
+	/* Need to get xgmi info early to decide the reset behavior*/
+	if (adev->gmc.xgmi.supported) {
+		r = adev->gfxhub.funcs->get_xgmi_info(adev);
+		if (r)
+			return r;
+	}
+
+	/* enable PCIE atomic ops */
+	if (amdgpu_sriov_vf(adev))
+		adev->have_atomics_support = ((struct amd_sriov_msg_pf2vf_info *)
+			adev->virt.fw_reserve.p_pf2vf)->pcie_atomic_ops_support_flags ==
+			(PCI_EXP_DEVCAP2_ATOMIC_COMP32 | PCI_EXP_DEVCAP2_ATOMIC_COMP64);
+	/* APUs w/ gfx9 onwards doesn't reply on PCIe atomics, rather it is a
+	 * internal path natively support atomics, set have_atomics_support to true.
+	 */
+	else if ((adev->flags & AMD_IS_APU) &&
+		(adev->ip_versions[GC_HWIP][0] > IP_VERSION(9, 0, 0)))
+		adev->have_atomics_support = true;
+	else
+		adev->have_atomics_support =
+			!pci_enable_atomic_ops_to_root(adev->pdev,
+					  PCI_EXP_DEVCAP2_ATOMIC_COMP32 |
+					  PCI_EXP_DEVCAP2_ATOMIC_COMP64);
+	if (!adev->have_atomics_support)
+		dev_info(adev->dev, "PCIE atomic ops is not supported\n");
+
+	/* doorbell bar mapping and doorbell index init*/
+	amdgpu_device_doorbell_init(adev);
+
+	if (amdgpu_emu_mode == 1) {
+		/* post the asic on emulation mode */
+		emu_soc_asic_init(adev);
+		goto fence_driver_init;
+	}
+
+	amdgpu_reset_init(adev);
+
+	/* detect if we are with an SRIOV vbios */
+	amdgpu_device_detect_sriov_bios(adev);
+
+	/* check if we need to reset the asic
+	 *  E.g., driver was not cleanly unloaded previously, etc.
+	 */
+	if (!amdgpu_sriov_vf(adev) && amdgpu_asic_need_reset_on_init(adev)) {
+		if (adev->gmc.xgmi.num_physical_nodes) {
+			dev_info(adev->dev, "Pending hive reset.\n");
+			adev->gmc.xgmi.pending_reset = true;
+			/* Only need to init necessary block for SMU to handle the reset */
+			for (i = 0; i < adev->num_ip_blocks; i++) {
+				if (!adev->ip_blocks[i].status.valid)
+					continue;
+				if (!(adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
+				      adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
+				      adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH ||
+				      adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC)) {
+					DRM_DEBUG("IP %s disabled for hw_init.\n",
+						adev->ip_blocks[i].version->funcs->name);
+					adev->ip_blocks[i].status.hw = true;
+				}
+			}
+		} else {
+			tmp = amdgpu_reset_method;
+			/* It should do a default reset when loading or reloading the driver,
+			 * regardless of the module parameter reset_method.
+			 */
+			amdgpu_reset_method = AMD_RESET_METHOD_NONE;
+			r = amdgpu_asic_reset(adev);
+			amdgpu_reset_method = tmp;
+			if (r) {
+				dev_err(adev->dev, "asic reset on init failed\n");
+				goto failed;
+			}
+		}
+	}
+
+	pci_enable_pcie_error_reporting(adev->pdev);
+
+	/* Post card if necessary */
+	if (amdgpu_device_need_post(adev)) {
+		if (!adev->bios) {
+			dev_err(adev->dev, "no vBIOS found\n");
+			r = -EINVAL;
+			goto failed;
+		}
+		DRM_INFO("GPU posting now...\n");
+		r = amdgpu_device_asic_init(adev);
+		if (r) {
+			dev_err(adev->dev, "gpu post error!\n");
+			goto failed;
+		}
+	}
+
+	if (adev->is_atom_fw) {
+		/* Initialize clocks */
+		r = amdgpu_atomfirmware_get_clock_info(adev);
+		if (r) {
+			dev_err(adev->dev, "amdgpu_atomfirmware_get_clock_info failed\n");
+			amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_GET_CLOCK_FAIL, 0, 0);
+			goto failed;
+		}
+	} else {
+		/* Initialize clocks */
+		r = amdgpu_atombios_get_clock_info(adev);
+		if (r) {
+			dev_err(adev->dev, "amdgpu_atombios_get_clock_info failed\n");
+			amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_GET_CLOCK_FAIL, 0, 0);
+			goto failed;
+		}
+		/* init i2c buses */
+		if (!amdgpu_device_has_dc_support(adev))
+			amdgpu_atombios_i2c_init(adev);
+	}
+
+fence_driver_init:
+	/* Fence driver */
+	r = amdgpu_fence_driver_sw_init(adev);
+	if (r) {
+		dev_err(adev->dev, "amdgpu_fence_driver_sw_init failed\n");
+		amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_FENCE_INIT_FAIL, 0, 0);
+		goto failed;
+	}
+
+	/* init the mode config */
+	drm_mode_config_init(adev_to_drm(adev));
+
+	r = amdgpu_device_ip_init(adev);
+	if (r) {
+		dev_err(adev->dev, "amdgpu_device_ip_init failed\n");
+		amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_AMDGPU_INIT_FAIL, 0, 0);
+		goto release_ras_con;
+	}
+
+	amdgpu_fence_driver_hw_init(adev);
+
+	dev_info(adev->dev,
+		"SE %d, SH per SE %d, CU per SH %d, active_cu_number %d\n",
+			adev->gfx.config.max_shader_engines,
+			adev->gfx.config.max_sh_per_se,
+			adev->gfx.config.max_cu_per_sh,
+			adev->gfx.cu_info.number);
+
+	adev->accel_working = true;
+
+	amdgpu_vm_check_compute_bug(adev);
+
+	/* Initialize the buffer migration limit. */
+	if (amdgpu_moverate >= 0)
+		max_MBps = amdgpu_moverate;
+	else
+		max_MBps = 8; /* Allow 8 MB/s. */
+	/* Get a log2 for easy divisions. */
+	adev->mm_stats.log2_max_MBps = ilog2(max(1u, max_MBps));
+
+	r = amdgpu_pm_sysfs_init(adev);
+	if (r) {
+		adev->pm_sysfs_en = false;
+		DRM_ERROR("registering pm debugfs failed (%d).\n", r);
+	} else
+		adev->pm_sysfs_en = true;
+
+	r = amdgpu_ucode_sysfs_init(adev);
+	if (r) {
+		adev->ucode_sysfs_en = false;
+		DRM_ERROR("Creating firmware sysfs failed (%d).\n", r);
+	} else
+		adev->ucode_sysfs_en = true;
+
+	r = amdgpu_psp_sysfs_init(adev);
+	if (r) {
+		adev->psp_sysfs_en = false;
+		if (!amdgpu_sriov_vf(adev))
+			DRM_ERROR("Creating psp sysfs failed\n");
+	} else
+		adev->psp_sysfs_en = true;
+
+	/*
+	 * Register gpu instance before amdgpu_device_enable_mgpu_fan_boost.
+	 * Otherwise the mgpu fan boost feature will be skipped due to the
+	 * gpu instance is counted less.
+	 */
+	amdgpu_register_gpu_instance(adev);
+
+	/* enable clockgating, etc. after ib tests, etc. since some blocks require
+	 * explicit gating rather than handling it automatically.
+	 */
+	if (!adev->gmc.xgmi.pending_reset) {
+		r = amdgpu_device_ip_late_init(adev);
+		if (r) {
+			dev_err(adev->dev, "amdgpu_device_ip_late_init failed\n");
+			amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_AMDGPU_LATE_INIT_FAIL, 0, r);
+			goto release_ras_con;
+		}
+		/* must succeed. */
+		amdgpu_ras_resume(adev);
+		queue_delayed_work(system_wq, &adev->delayed_init_work,
+				   msecs_to_jiffies(AMDGPU_RESUME_MS));
+	}
+
+	if (amdgpu_sriov_vf(adev)) {
+		amdgpu_virt_release_full_gpu(adev, true);
+		flush_delayed_work(&adev->delayed_init_work);
+	}
+
+	r = sysfs_create_files(&adev->dev->kobj, amdgpu_dev_attributes);
+	if (r)
+		dev_err(adev->dev, "Could not create amdgpu device attr\n");
+
+	if (IS_ENABLED(CONFIG_PERF_EVENTS))
+		r = amdgpu_pmu_init(adev);
+	if (r)
+		dev_err(adev->dev, "amdgpu_pmu_init failed\n");
+
+	/* Have stored pci confspace at hand for restore in sudden PCI error */
+	if (amdgpu_device_cache_pci_state(adev->pdev))
+		pci_restore_state(pdev);
+
+	/* if we have > 1 VGA cards, then disable the amdgpu VGA resources */
+	/* this will fail for cards that aren't VGA class devices, just
+	 * ignore it */
+	if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
+		vga_client_register(adev->pdev, amdgpu_device_vga_set_decode);
+
+	px = amdgpu_device_supports_px(ddev);
+
+	if (px || (!dev_is_removable(&adev->pdev->dev) &&
+				apple_gmux_detect(NULL, NULL)))
+		vga_switcheroo_register_client(adev->pdev,
+					       &amdgpu_switcheroo_ops, px);
+
+	if (px)
+		vga_switcheroo_init_domain_pm_ops(adev->dev, &adev->vga_pm_domain);
+
+	if (adev->gmc.xgmi.pending_reset)
+		queue_delayed_work(system_wq, &mgpu_info.delayed_reset_work,
+				   msecs_to_jiffies(AMDGPU_RESUME_MS));
+
+	amdgpu_device_check_iommu_direct_map(adev);
+
+	return 0;
+
+release_ras_con:
+	if (amdgpu_sriov_vf(adev))
+		amdgpu_virt_release_full_gpu(adev, true);
+
+	/* failed in exclusive mode due to timeout */
+	if (amdgpu_sriov_vf(adev) &&
+		!amdgpu_sriov_runtime(adev) &&
+		amdgpu_virt_mmio_blocked(adev) &&
+		!amdgpu_virt_wait_reset(adev)) {
+		dev_err(adev->dev, "VF exclusive mode timeout\n");
+		/* Don't send request since VF is inactive. */
+		adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME;
+		adev->virt.ops = NULL;
+		r = -EAGAIN;
+	}
+	amdgpu_release_ras_context(adev);
+
+failed:
+	amdgpu_vf_error_trans_all(adev);
+
+	return r;
+}
+
+static void amdgpu_device_unmap_mmio(struct amdgpu_device *adev)
+{
+
+	/* Clear all CPU mappings pointing to this device */
+	unmap_mapping_range(adev->ddev.anon_inode->i_mapping, 0, 0, 1);
+
+	/* Unmap all mapped bars - Doorbell, registers and VRAM */
+	amdgpu_device_doorbell_fini(adev);
+
+	iounmap(adev->rmmio);
+	adev->rmmio = NULL;
+	if (adev->mman.aper_base_kaddr)
+		iounmap(adev->mman.aper_base_kaddr);
+	adev->mman.aper_base_kaddr = NULL;
+
+	/* Memory manager related */
+	if (!adev->gmc.xgmi.connected_to_cpu) {
+		arch_phys_wc_del(adev->gmc.vram_mtrr);
+		arch_io_free_memtype_wc(adev->gmc.aper_base, adev->gmc.aper_size);
+	}
+}
+
+/**
+ * amdgpu_device_fini_hw - tear down the driver
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Tear down the driver info (all asics).
+ * Called at driver shutdown.
+ */
+void amdgpu_device_fini_hw(struct amdgpu_device *adev)
+{
+	dev_info(adev->dev, "amdgpu: finishing device.\n");
+	flush_delayed_work(&adev->delayed_init_work);
+	adev->shutdown = true;
+
+	/* make sure IB test finished before entering exclusive mode
+	 * to avoid preemption on IB test
+	 * */
+	if (amdgpu_sriov_vf(adev)) {
+		amdgpu_virt_request_full_gpu(adev, false);
+		amdgpu_virt_fini_data_exchange(adev);
+	}
+
+	/* disable all interrupts */
+	amdgpu_irq_disable_all(adev);
+	if (adev->mode_info.mode_config_initialized){
+		if (!drm_drv_uses_atomic_modeset(adev_to_drm(adev)))
+			drm_helper_force_disable_all(adev_to_drm(adev));
+		else
+			drm_atomic_helper_shutdown(adev_to_drm(adev));
+	}
+	amdgpu_fence_driver_hw_fini(adev);
+
+	if (adev->mman.initialized) {
+		flush_delayed_work(&adev->mman.bdev.wq);
+		ttm_bo_lock_delayed_workqueue(&adev->mman.bdev);
+	}
+
+	if (adev->pm_sysfs_en)
+		amdgpu_pm_sysfs_fini(adev);
+	if (adev->ucode_sysfs_en)
+		amdgpu_ucode_sysfs_fini(adev);
+	if (adev->psp_sysfs_en)
+		amdgpu_psp_sysfs_fini(adev);
+	sysfs_remove_files(&adev->dev->kobj, amdgpu_dev_attributes);
+
+	/* disable ras feature must before hw fini */
+	amdgpu_ras_pre_fini(adev);
+
+	amdgpu_device_ip_fini_early(adev);
+
+	amdgpu_irq_fini_hw(adev);
+
+	if (adev->mman.initialized)
+		ttm_device_clear_dma_mappings(&adev->mman.bdev);
+
+	amdgpu_gart_dummy_page_fini(adev);
+
+	if (drm_dev_is_unplugged(adev_to_drm(adev)))
+		amdgpu_device_unmap_mmio(adev);
+
+}
+
+void amdgpu_device_fini_sw(struct amdgpu_device *adev)
+{
+	int idx;
+	bool px;
+
+	amdgpu_fence_driver_sw_fini(adev);
+	amdgpu_device_ip_fini(adev);
+	release_firmware(adev->firmware.gpu_info_fw);
+	adev->firmware.gpu_info_fw = NULL;
+	adev->accel_working = false;
+	dma_fence_put(rcu_dereference_protected(adev->gang_submit, true));
+
+	amdgpu_reset_fini(adev);
+
+	/* free i2c buses */
+	if (!amdgpu_device_has_dc_support(adev))
+		amdgpu_i2c_fini(adev);
+
+	if (amdgpu_emu_mode != 1)
+		amdgpu_atombios_fini(adev);
+
+	kfree(adev->bios);
+	adev->bios = NULL;
+
+	px = amdgpu_device_supports_px(adev_to_drm(adev));
+
+	if (px || (!dev_is_removable(&adev->pdev->dev) &&
+				apple_gmux_detect(NULL, NULL)))
+		vga_switcheroo_unregister_client(adev->pdev);
+
+	if (px)
+		vga_switcheroo_fini_domain_pm_ops(adev->dev);
+
+	if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
+		vga_client_unregister(adev->pdev);
+
+	if (drm_dev_enter(adev_to_drm(adev), &idx)) {
+
+		iounmap(adev->rmmio);
+		adev->rmmio = NULL;
+		amdgpu_device_doorbell_fini(adev);
+		drm_dev_exit(idx);
+	}
+
+	if (IS_ENABLED(CONFIG_PERF_EVENTS))
+		amdgpu_pmu_fini(adev);
+	if (adev->mman.discovery_bin)
+		amdgpu_discovery_fini(adev);
+
+	amdgpu_reset_put_reset_domain(adev->reset_domain);
+	adev->reset_domain = NULL;
+
+	kfree(adev->pci_state);
+
+}
+
+/**
+ * amdgpu_device_evict_resources - evict device resources
+ * @adev: amdgpu device object
+ *
+ * Evicts all ttm device resources(vram BOs, gart table) from the lru list
+ * of the vram memory type. Mainly used for evicting device resources
+ * at suspend time.
+ *
+ */
+static int amdgpu_device_evict_resources(struct amdgpu_device *adev)
+{
+	int ret;
+
+	/* No need to evict vram on APUs for suspend to ram or s2idle */
+	if ((adev->in_s3 || adev->in_s0ix) && (adev->flags & AMD_IS_APU))
+		return 0;
+
+	ret = amdgpu_ttm_evict_resources(adev, TTM_PL_VRAM);
+	if (ret)
+		DRM_WARN("evicting device resources failed\n");
+	return ret;
+}
+
+/*
+ * Suspend & resume.
+ */
+/**
+ * amdgpu_device_suspend - initiate device suspend
+ *
+ * @dev: drm dev pointer
+ * @fbcon : notify the fbdev of suspend
+ *
+ * Puts the hw in the suspend state (all asics).
+ * Returns 0 for success or an error on failure.
+ * Called at driver suspend.
+ */
+int amdgpu_device_suspend(struct drm_device *dev, bool fbcon)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	int r = 0;
+
+	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+		return 0;
+
+	adev->in_suspend = true;
+
+	if (amdgpu_sriov_vf(adev)) {
+		amdgpu_virt_fini_data_exchange(adev);
+		r = amdgpu_virt_request_full_gpu(adev, false);
+		if (r)
+			return r;
+	}
+
+	if (amdgpu_acpi_smart_shift_update(dev, AMDGPU_SS_DEV_D3))
+		DRM_WARN("smart shift update failed\n");
+
+	drm_kms_helper_poll_disable(dev);
+
+	if (fbcon)
+		drm_fb_helper_set_suspend_unlocked(adev_to_drm(adev)->fb_helper, true);
+
+	cancel_delayed_work_sync(&adev->delayed_init_work);
+	flush_delayed_work(&adev->gfx.gfx_off_delay_work);
+
+	amdgpu_ras_suspend(adev);
+
+	amdgpu_device_ip_suspend_phase1(adev);
+
+	if (!adev->in_s0ix)
+		amdgpu_amdkfd_suspend(adev, adev->in_runpm);
+
+	r = amdgpu_device_evict_resources(adev);
+	if (r)
+		return r;
+
+	amdgpu_fence_driver_hw_fini(adev);
+
+	amdgpu_device_ip_suspend_phase2(adev);
+
+	if (amdgpu_sriov_vf(adev))
+		amdgpu_virt_release_full_gpu(adev, false);
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_resume - initiate device resume
+ *
+ * @dev: drm dev pointer
+ * @fbcon : notify the fbdev of resume
+ *
+ * Bring the hw back to operating state (all asics).
+ * Returns 0 for success or an error on failure.
+ * Called at driver resume.
+ */
+int amdgpu_device_resume(struct drm_device *dev, bool fbcon)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	int r = 0;
+
+	if (amdgpu_sriov_vf(adev)) {
+		r = amdgpu_virt_request_full_gpu(adev, true);
+		if (r)
+			return r;
+	}
+
+	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+		return 0;
+
+	if (adev->in_s0ix)
+		amdgpu_dpm_gfx_state_change(adev, sGpuChangeState_D0Entry);
+
+	/* post card */
+	if (amdgpu_device_need_post(adev)) {
+		r = amdgpu_device_asic_init(adev);
+		if (r)
+			dev_err(adev->dev, "amdgpu asic init failed\n");
+	}
+
+	r = amdgpu_device_ip_resume(adev);
+
+	/* no matter what r is, always need to properly release full GPU */
+	if (amdgpu_sriov_vf(adev)) {
+		amdgpu_virt_init_data_exchange(adev);
+		amdgpu_virt_release_full_gpu(adev, true);
+	}
+
+	if (r) {
+		dev_err(adev->dev, "amdgpu_device_ip_resume failed (%d).\n", r);
+		return r;
+	}
+	amdgpu_fence_driver_hw_init(adev);
+
+	r = amdgpu_device_ip_late_init(adev);
+	if (r)
+		return r;
+
+	queue_delayed_work(system_wq, &adev->delayed_init_work,
+			   msecs_to_jiffies(AMDGPU_RESUME_MS));
+
+	if (!adev->in_s0ix) {
+		r = amdgpu_amdkfd_resume(adev, adev->in_runpm);
+		if (r)
+			return r;
+	}
+
+	/* Make sure IB tests flushed */
+	flush_delayed_work(&adev->delayed_init_work);
+
+	if (adev->in_s0ix) {
+		/* re-enable gfxoff after IP resume. This re-enables gfxoff after
+		 * it was disabled for IP resume in amdgpu_device_ip_resume_phase2().
+		 */
+		amdgpu_gfx_off_ctrl(adev, true);
+		DRM_DEBUG("will enable gfxoff for the mission mode\n");
+	}
+	if (fbcon)
+		drm_fb_helper_set_suspend_unlocked(adev_to_drm(adev)->fb_helper, false);
+
+	drm_kms_helper_poll_enable(dev);
+
+	amdgpu_ras_resume(adev);
+
+	/*
+	 * Most of the connector probing functions try to acquire runtime pm
+	 * refs to ensure that the GPU is powered on when connector polling is
+	 * performed. Since we're calling this from a runtime PM callback,
+	 * trying to acquire rpm refs will cause us to deadlock.
+	 *
+	 * Since we're guaranteed to be holding the rpm lock, it's safe to
+	 * temporarily disable the rpm helpers so this doesn't deadlock us.
+	 */
+#ifdef CONFIG_PM
+	dev->dev->power.disable_depth++;
+#endif
+	if (!amdgpu_device_has_dc_support(adev))
+		drm_helper_hpd_irq_event(dev);
+	else
+		drm_kms_helper_hotplug_event(dev);
+#ifdef CONFIG_PM
+	dev->dev->power.disable_depth--;
+#endif
+	adev->in_suspend = false;
+
+	if (adev->enable_mes)
+		amdgpu_mes_self_test(adev);
+
+	if (amdgpu_acpi_smart_shift_update(dev, AMDGPU_SS_DEV_D0))
+		DRM_WARN("smart shift update failed\n");
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_ip_check_soft_reset - did soft reset succeed
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * The list of all the hardware IPs that make up the asic is walked and
+ * the check_soft_reset callbacks are run.  check_soft_reset determines
+ * if the asic is still hung or not.
+ * Returns true if any of the IPs are still in a hung state, false if not.
+ */
+static bool amdgpu_device_ip_check_soft_reset(struct amdgpu_device *adev)
+{
+	int i;
+	bool asic_hang = false;
+
+	if (amdgpu_sriov_vf(adev))
+		return true;
+
+	if (amdgpu_asic_need_full_reset(adev))
+		return true;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+		if (adev->ip_blocks[i].version->funcs->check_soft_reset)
+			adev->ip_blocks[i].status.hang =
+				adev->ip_blocks[i].version->funcs->check_soft_reset(adev);
+		if (adev->ip_blocks[i].status.hang) {
+			dev_info(adev->dev, "IP block:%s is hung!\n", adev->ip_blocks[i].version->funcs->name);
+			asic_hang = true;
+		}
+	}
+	return asic_hang;
+}
+
+/**
+ * amdgpu_device_ip_pre_soft_reset - prepare for soft reset
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * The list of all the hardware IPs that make up the asic is walked and the
+ * pre_soft_reset callbacks are run if the block is hung.  pre_soft_reset
+ * handles any IP specific hardware or software state changes that are
+ * necessary for a soft reset to succeed.
+ * Returns 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_ip_pre_soft_reset(struct amdgpu_device *adev)
+{
+	int i, r = 0;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+		if (adev->ip_blocks[i].status.hang &&
+		    adev->ip_blocks[i].version->funcs->pre_soft_reset) {
+			r = adev->ip_blocks[i].version->funcs->pre_soft_reset(adev);
+			if (r)
+				return r;
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_ip_need_full_reset - check if a full asic reset is needed
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Some hardware IPs cannot be soft reset.  If they are hung, a full gpu
+ * reset is necessary to recover.
+ * Returns true if a full asic reset is required, false if not.
+ */
+static bool amdgpu_device_ip_need_full_reset(struct amdgpu_device *adev)
+{
+	int i;
+
+	if (amdgpu_asic_need_full_reset(adev))
+		return true;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+		if ((adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) ||
+		    (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) ||
+		    (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_ACP) ||
+		    (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE) ||
+		     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP) {
+			if (adev->ip_blocks[i].status.hang) {
+				dev_info(adev->dev, "Some block need full reset!\n");
+				return true;
+			}
+		}
+	}
+	return false;
+}
+
+/**
+ * amdgpu_device_ip_soft_reset - do a soft reset
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * The list of all the hardware IPs that make up the asic is walked and the
+ * soft_reset callbacks are run if the block is hung.  soft_reset handles any
+ * IP specific hardware or software state changes that are necessary to soft
+ * reset the IP.
+ * Returns 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_ip_soft_reset(struct amdgpu_device *adev)
+{
+	int i, r = 0;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+		if (adev->ip_blocks[i].status.hang &&
+		    adev->ip_blocks[i].version->funcs->soft_reset) {
+			r = adev->ip_blocks[i].version->funcs->soft_reset(adev);
+			if (r)
+				return r;
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_ip_post_soft_reset - clean up from soft reset
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * The list of all the hardware IPs that make up the asic is walked and the
+ * post_soft_reset callbacks are run if the asic was hung.  post_soft_reset
+ * handles any IP specific hardware or software state changes that are
+ * necessary after the IP has been soft reset.
+ * Returns 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_ip_post_soft_reset(struct amdgpu_device *adev)
+{
+	int i, r = 0;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_blocks[i].status.valid)
+			continue;
+		if (adev->ip_blocks[i].status.hang &&
+		    adev->ip_blocks[i].version->funcs->post_soft_reset)
+			r = adev->ip_blocks[i].version->funcs->post_soft_reset(adev);
+		if (r)
+			return r;
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_device_recover_vram - Recover some VRAM contents
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Restores the contents of VRAM buffers from the shadows in GTT.  Used to
+ * restore things like GPUVM page tables after a GPU reset where
+ * the contents of VRAM might be lost.
+ *
+ * Returns:
+ * 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_recover_vram(struct amdgpu_device *adev)
+{
+	struct dma_fence *fence = NULL, *next = NULL;
+	struct amdgpu_bo *shadow;
+	struct amdgpu_bo_vm *vmbo;
+	long r = 1, tmo;
+
+	if (amdgpu_sriov_runtime(adev))
+		tmo = msecs_to_jiffies(8000);
+	else
+		tmo = msecs_to_jiffies(100);
+
+	dev_info(adev->dev, "recover vram bo from shadow start\n");
+	mutex_lock(&adev->shadow_list_lock);
+	list_for_each_entry(vmbo, &adev->shadow_list, shadow_list) {
+		/* If vm is compute context or adev is APU, shadow will be NULL */
+		if (!vmbo->shadow)
+			continue;
+		shadow = vmbo->shadow;
+
+		/* No need to recover an evicted BO */
+		if (shadow->tbo.resource->mem_type != TTM_PL_TT ||
+		    shadow->tbo.resource->start == AMDGPU_BO_INVALID_OFFSET ||
+		    shadow->parent->tbo.resource->mem_type != TTM_PL_VRAM)
+			continue;
+
+		r = amdgpu_bo_restore_shadow(shadow, &next);
+		if (r)
+			break;
+
+		if (fence) {
+			tmo = dma_fence_wait_timeout(fence, false, tmo);
+			dma_fence_put(fence);
+			fence = next;
+			if (tmo == 0) {
+				r = -ETIMEDOUT;
+				break;
+			} else if (tmo < 0) {
+				r = tmo;
+				break;
+			}
+		} else {
+			fence = next;
+		}
+	}
+	mutex_unlock(&adev->shadow_list_lock);
+
+	if (fence)
+		tmo = dma_fence_wait_timeout(fence, false, tmo);
+	dma_fence_put(fence);
+
+	if (r < 0 || tmo <= 0) {
+		dev_err(adev->dev, "recover vram bo from shadow failed, r is %ld, tmo is %ld\n", r, tmo);
+		return -EIO;
+	}
+
+	dev_info(adev->dev, "recover vram bo from shadow done\n");
+	return 0;
+}
+
+
+/**
+ * amdgpu_device_reset_sriov - reset ASIC for SR-IOV vf
+ *
+ * @adev: amdgpu_device pointer
+ * @from_hypervisor: request from hypervisor
+ *
+ * do VF FLR and reinitialize Asic
+ * return 0 means succeeded otherwise failed
+ */
+static int amdgpu_device_reset_sriov(struct amdgpu_device *adev,
+				     bool from_hypervisor)
+{
+	int r;
+	struct amdgpu_hive_info *hive = NULL;
+	int retry_limit = 0;
+
+retry:
+	amdgpu_amdkfd_pre_reset(adev);
+
+	if (from_hypervisor)
+		r = amdgpu_virt_request_full_gpu(adev, true);
+	else
+		r = amdgpu_virt_reset_gpu(adev);
+	if (r)
+		return r;
+
+	/* Resume IP prior to SMC */
+	r = amdgpu_device_ip_reinit_early_sriov(adev);
+	if (r)
+		goto error;
+
+	amdgpu_virt_init_data_exchange(adev);
+
+	r = amdgpu_device_fw_loading(adev);
+	if (r)
+		return r;
+
+	/* now we are okay to resume SMC/CP/SDMA */
+	r = amdgpu_device_ip_reinit_late_sriov(adev);
+	if (r)
+		goto error;
+
+	hive = amdgpu_get_xgmi_hive(adev);
+	/* Update PSP FW topology after reset */
+	if (hive && adev->gmc.xgmi.num_physical_nodes > 1)
+		r = amdgpu_xgmi_update_topology(hive, adev);
+
+	if (hive)
+		amdgpu_put_xgmi_hive(hive);
+
+	if (!r) {
+		amdgpu_irq_gpu_reset_resume_helper(adev);
+		r = amdgpu_ib_ring_tests(adev);
+
+		amdgpu_amdkfd_post_reset(adev);
+	}
+
+error:
+	if (!r && adev->virt.gim_feature & AMDGIM_FEATURE_GIM_FLR_VRAMLOST) {
+		amdgpu_inc_vram_lost(adev);
+		r = amdgpu_device_recover_vram(adev);
+	}
+	amdgpu_virt_release_full_gpu(adev, true);
+
+	if (AMDGPU_RETRY_SRIOV_RESET(r)) {
+		if (retry_limit < AMDGPU_MAX_RETRY_LIMIT) {
+			retry_limit++;
+			goto retry;
+		} else
+			DRM_ERROR("GPU reset retry is beyond the retry limit\n");
+	}
+
+	return r;
+}
+
+/**
+ * amdgpu_device_has_job_running - check if there is any job in mirror list
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * check if there is any job in mirror list
+ */
+bool amdgpu_device_has_job_running(struct amdgpu_device *adev)
+{
+	int i;
+	struct drm_sched_job *job;
+
+	for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
+		struct amdgpu_ring *ring = adev->rings[i];
+
+		if (!ring || !ring->sched.thread)
+			continue;
+
+		spin_lock(&ring->sched.job_list_lock);
+		job = list_first_entry_or_null(&ring->sched.pending_list,
+					       struct drm_sched_job, list);
+		spin_unlock(&ring->sched.job_list_lock);
+		if (job)
+			return true;
+	}
+	return false;
+}
+
+/**
+ * amdgpu_device_should_recover_gpu - check if we should try GPU recovery
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Check amdgpu_gpu_recovery and SRIOV status to see if we should try to recover
+ * a hung GPU.
+ */
+bool amdgpu_device_should_recover_gpu(struct amdgpu_device *adev)
+{
+
+	if (amdgpu_gpu_recovery == 0)
+		goto disabled;
+
+	if (!amdgpu_device_ip_check_soft_reset(adev)) {
+		dev_info(adev->dev,"Timeout, but no hardware hang detected.\n");
+		return false;
+	}
+
+	if (amdgpu_sriov_vf(adev))
+		return true;
+
+	if (amdgpu_gpu_recovery == -1) {
+		switch (adev->asic_type) {
+#ifdef CONFIG_DRM_AMDGPU_SI
+		case CHIP_VERDE:
+		case CHIP_TAHITI:
+		case CHIP_PITCAIRN:
+		case CHIP_OLAND:
+		case CHIP_HAINAN:
+#endif
+#ifdef CONFIG_DRM_AMDGPU_CIK
+		case CHIP_KAVERI:
+		case CHIP_KABINI:
+		case CHIP_MULLINS:
+#endif
+		case CHIP_CARRIZO:
+		case CHIP_STONEY:
+		case CHIP_CYAN_SKILLFISH:
+			goto disabled;
+		default:
+			break;
+		}
+	}
+
+	return true;
+
+disabled:
+		dev_info(adev->dev, "GPU recovery disabled.\n");
+		return false;
+}
+
+int amdgpu_device_mode1_reset(struct amdgpu_device *adev)
+{
+        u32 i;
+        int ret = 0;
+
+        amdgpu_atombios_scratch_regs_engine_hung(adev, true);
+
+        dev_info(adev->dev, "GPU mode1 reset\n");
+
+        /* disable BM */
+        pci_clear_master(adev->pdev);
+
+        amdgpu_device_cache_pci_state(adev->pdev);
+
+        if (amdgpu_dpm_is_mode1_reset_supported(adev)) {
+                dev_info(adev->dev, "GPU smu mode1 reset\n");
+                ret = amdgpu_dpm_mode1_reset(adev);
+        } else {
+                dev_info(adev->dev, "GPU psp mode1 reset\n");
+                ret = psp_gpu_reset(adev);
+        }
+
+        if (ret)
+                dev_err(adev->dev, "GPU mode1 reset failed\n");
+
+        amdgpu_device_load_pci_state(adev->pdev);
+
+        /* wait for asic to come out of reset */
+        for (i = 0; i < adev->usec_timeout; i++) {
+                u32 memsize = adev->nbio.funcs->get_memsize(adev);
+
+                if (memsize != 0xffffffff)
+                        break;
+                udelay(1);
+        }
+
+        amdgpu_atombios_scratch_regs_engine_hung(adev, false);
+        return ret;
+}
+
+int amdgpu_device_pre_asic_reset(struct amdgpu_device *adev,
+				 struct amdgpu_reset_context *reset_context)
+{
+	int i, r = 0;
+	struct amdgpu_job *job = NULL;
+	bool need_full_reset =
+		test_bit(AMDGPU_NEED_FULL_RESET, &reset_context->flags);
+
+	if (reset_context->reset_req_dev == adev)
+		job = reset_context->job;
+
+	if (amdgpu_sriov_vf(adev)) {
+		/* stop the data exchange thread */
+		amdgpu_virt_fini_data_exchange(adev);
+	}
+
+	amdgpu_fence_driver_isr_toggle(adev, true);
+
+	/* block all schedulers and reset given job's ring */
+	for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
+		struct amdgpu_ring *ring = adev->rings[i];
+
+		if (!ring || !ring->sched.thread)
+			continue;
+
+		/*clear job fence from fence drv to avoid force_completion
+		 *leave NULL and vm flush fence in fence drv */
+		amdgpu_fence_driver_clear_job_fences(ring);
+
+		/* after all hw jobs are reset, hw fence is meaningless, so force_completion */
+		amdgpu_fence_driver_force_completion(ring);
+	}
+
+	amdgpu_fence_driver_isr_toggle(adev, false);
+
+	if (job && job->vm)
+		drm_sched_increase_karma(&job->base);
+
+	r = amdgpu_reset_prepare_hwcontext(adev, reset_context);
+	/* If reset handler not implemented, continue; otherwise return */
+	if (r == -ENOSYS)
+		r = 0;
+	else
+		return r;
+
+	/* Don't suspend on bare metal if we are not going to HW reset the ASIC */
+	if (!amdgpu_sriov_vf(adev)) {
+
+		if (!need_full_reset)
+			need_full_reset = amdgpu_device_ip_need_full_reset(adev);
+
+		if (!need_full_reset && amdgpu_gpu_recovery) {
+			amdgpu_device_ip_pre_soft_reset(adev);
+			r = amdgpu_device_ip_soft_reset(adev);
+			amdgpu_device_ip_post_soft_reset(adev);
+			if (r || amdgpu_device_ip_check_soft_reset(adev)) {
+				dev_info(adev->dev, "soft reset failed, will fallback to full reset!\n");
+				need_full_reset = true;
+			}
+		}
+
+		if (need_full_reset)
+			r = amdgpu_device_ip_suspend(adev);
+		if (need_full_reset)
+			set_bit(AMDGPU_NEED_FULL_RESET, &reset_context->flags);
+		else
+			clear_bit(AMDGPU_NEED_FULL_RESET,
+				  &reset_context->flags);
+	}
+
+	return r;
+}
+
+static int amdgpu_reset_reg_dumps(struct amdgpu_device *adev)
+{
+	int i;
+
+	lockdep_assert_held(&adev->reset_domain->sem);
+
+	for (i = 0; i < adev->num_regs; i++) {
+		adev->reset_dump_reg_value[i] = RREG32(adev->reset_dump_reg_list[i]);
+		trace_amdgpu_reset_reg_dumps(adev->reset_dump_reg_list[i],
+					     adev->reset_dump_reg_value[i]);
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_DEV_COREDUMP
+static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset,
+		size_t count, void *data, size_t datalen)
+{
+	struct drm_printer p;
+	struct amdgpu_device *adev = data;
+	struct drm_print_iterator iter;
+	int i;
+
+	iter.data = buffer;
+	iter.offset = 0;
+	iter.start = offset;
+	iter.remain = count;
+
+	p = drm_coredump_printer(&iter);
+
+	drm_printf(&p, "**** AMDGPU Device Coredump ****\n");
+	drm_printf(&p, "kernel: " UTS_RELEASE "\n");
+	drm_printf(&p, "module: " KBUILD_MODNAME "\n");
+	drm_printf(&p, "time: %lld.%09ld\n", adev->reset_time.tv_sec, adev->reset_time.tv_nsec);
+	if (adev->reset_task_info.pid)
+		drm_printf(&p, "process_name: %s PID: %d\n",
+			   adev->reset_task_info.process_name,
+			   adev->reset_task_info.pid);
+
+	if (adev->reset_vram_lost)
+		drm_printf(&p, "VRAM is lost due to GPU reset!\n");
+	if (adev->num_regs) {
+		drm_printf(&p, "AMDGPU register dumps:\nOffset:     Value:\n");
+
+		for (i = 0; i < adev->num_regs; i++)
+			drm_printf(&p, "0x%08x: 0x%08x\n",
+				   adev->reset_dump_reg_list[i],
+				   adev->reset_dump_reg_value[i]);
+	}
+
+	return count - iter.remain;
+}
+
+static void amdgpu_devcoredump_free(void *data)
+{
+}
+
+static void amdgpu_reset_capture_coredumpm(struct amdgpu_device *adev)
+{
+	struct drm_device *dev = adev_to_drm(adev);
+
+	ktime_get_ts64(&adev->reset_time);
+	dev_coredumpm(dev->dev, THIS_MODULE, adev, 0, GFP_KERNEL,
+		      amdgpu_devcoredump_read, amdgpu_devcoredump_free);
+}
+#endif
+
+int amdgpu_do_asic_reset(struct list_head *device_list_handle,
+			 struct amdgpu_reset_context *reset_context)
+{
+	struct amdgpu_device *tmp_adev = NULL;
+	bool need_full_reset, skip_hw_reset, vram_lost = false;
+	int r = 0;
+	bool gpu_reset_for_dev_remove = 0;
+
+	/* Try reset handler method first */
+	tmp_adev = list_first_entry(device_list_handle, struct amdgpu_device,
+				    reset_list);
+	amdgpu_reset_reg_dumps(tmp_adev);
+
+	reset_context->reset_device_list = device_list_handle;
+	r = amdgpu_reset_perform_reset(tmp_adev, reset_context);
+	/* If reset handler not implemented, continue; otherwise return */
+	if (r == -ENOSYS)
+		r = 0;
+	else
+		return r;
+
+	/* Reset handler not implemented, use the default method */
+	need_full_reset =
+		test_bit(AMDGPU_NEED_FULL_RESET, &reset_context->flags);
+	skip_hw_reset = test_bit(AMDGPU_SKIP_HW_RESET, &reset_context->flags);
+
+	gpu_reset_for_dev_remove =
+		test_bit(AMDGPU_RESET_FOR_DEVICE_REMOVE, &reset_context->flags) &&
+			test_bit(AMDGPU_NEED_FULL_RESET, &reset_context->flags);
+
+	/*
+	 * ASIC reset has to be done on all XGMI hive nodes ASAP
+	 * to allow proper links negotiation in FW (within 1 sec)
+	 */
+	if (!skip_hw_reset && need_full_reset) {
+		list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
+			/* For XGMI run all resets in parallel to speed up the process */
+			if (tmp_adev->gmc.xgmi.num_physical_nodes > 1) {
+				tmp_adev->gmc.xgmi.pending_reset = false;
+				if (!queue_work(system_unbound_wq, &tmp_adev->xgmi_reset_work))
+					r = -EALREADY;
+			} else
+				r = amdgpu_asic_reset(tmp_adev);
+
+			if (r) {
+				dev_err(tmp_adev->dev, "ASIC reset failed with error, %d for drm dev, %s",
+					 r, adev_to_drm(tmp_adev)->unique);
+				break;
+			}
+		}
+
+		/* For XGMI wait for all resets to complete before proceed */
+		if (!r) {
+			list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
+				if (tmp_adev->gmc.xgmi.num_physical_nodes > 1) {
+					flush_work(&tmp_adev->xgmi_reset_work);
+					r = tmp_adev->asic_reset_res;
+					if (r)
+						break;
+				}
+			}
+		}
+	}
+
+	if (!r && amdgpu_ras_intr_triggered()) {
+		list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
+			if (tmp_adev->mmhub.ras && tmp_adev->mmhub.ras->ras_block.hw_ops &&
+			    tmp_adev->mmhub.ras->ras_block.hw_ops->reset_ras_error_count)
+				tmp_adev->mmhub.ras->ras_block.hw_ops->reset_ras_error_count(tmp_adev);
+		}
+
+		amdgpu_ras_intr_cleared();
+	}
+
+	/* Since the mode1 reset affects base ip blocks, the
+	 * phase1 ip blocks need to be resumed. Otherwise there
+	 * will be a BIOS signature error and the psp bootloader
+	 * can't load kdb on the next amdgpu install.
+	 */
+	if (gpu_reset_for_dev_remove) {
+		list_for_each_entry(tmp_adev, device_list_handle, reset_list)
+			amdgpu_device_ip_resume_phase1(tmp_adev);
+
+		goto end;
+	}
+
+	list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
+		if (need_full_reset) {
+			/* post card */
+			r = amdgpu_device_asic_init(tmp_adev);
+			if (r) {
+				dev_warn(tmp_adev->dev, "asic atom init failed!");
+			} else {
+				dev_info(tmp_adev->dev, "GPU reset succeeded, trying to resume\n");
+				r = amdgpu_amdkfd_resume_iommu(tmp_adev);
+				if (r)
+					goto out;
+
+				r = amdgpu_device_ip_resume_phase1(tmp_adev);
+				if (r)
+					goto out;
+
+				vram_lost = amdgpu_device_check_vram_lost(tmp_adev);
+#ifdef CONFIG_DEV_COREDUMP
+				tmp_adev->reset_vram_lost = vram_lost;
+				memset(&tmp_adev->reset_task_info, 0,
+						sizeof(tmp_adev->reset_task_info));
+				if (reset_context->job && reset_context->job->vm)
+					tmp_adev->reset_task_info =
+						reset_context->job->vm->task_info;
+				amdgpu_reset_capture_coredumpm(tmp_adev);
+#endif
+				if (vram_lost) {
+					DRM_INFO("VRAM is lost due to GPU reset!\n");
+					amdgpu_inc_vram_lost(tmp_adev);
+				}
+
+				r = amdgpu_device_fw_loading(tmp_adev);
+				if (r)
+					return r;
+
+				r = amdgpu_device_ip_resume_phase2(tmp_adev);
+				if (r)
+					goto out;
+
+				if (vram_lost)
+					amdgpu_device_fill_reset_magic(tmp_adev);
+
+				/*
+				 * Add this ASIC as tracked as reset was already
+				 * complete successfully.
+				 */
+				amdgpu_register_gpu_instance(tmp_adev);
+
+				if (!reset_context->hive &&
+				    tmp_adev->gmc.xgmi.num_physical_nodes > 1)
+					amdgpu_xgmi_add_device(tmp_adev);
+
+				r = amdgpu_device_ip_late_init(tmp_adev);
+				if (r)
+					goto out;
+
+				drm_fb_helper_set_suspend_unlocked(adev_to_drm(tmp_adev)->fb_helper, false);
+
+				/*
+				 * The GPU enters bad state once faulty pages
+				 * by ECC has reached the threshold, and ras
+				 * recovery is scheduled next. So add one check
+				 * here to break recovery if it indeed exceeds
+				 * bad page threshold, and remind user to
+				 * retire this GPU or setting one bigger
+				 * bad_page_threshold value to fix this once
+				 * probing driver again.
+				 */
+				if (!amdgpu_ras_eeprom_check_err_threshold(tmp_adev)) {
+					/* must succeed. */
+					amdgpu_ras_resume(tmp_adev);
+				} else {
+					r = -EINVAL;
+					goto out;
+				}
+
+				/* Update PSP FW topology after reset */
+				if (reset_context->hive &&
+				    tmp_adev->gmc.xgmi.num_physical_nodes > 1)
+					r = amdgpu_xgmi_update_topology(
+						reset_context->hive, tmp_adev);
+			}
+		}
+
+out:
+		if (!r) {
+			amdgpu_irq_gpu_reset_resume_helper(tmp_adev);
+			r = amdgpu_ib_ring_tests(tmp_adev);
+			if (r) {
+				dev_err(tmp_adev->dev, "ib ring test failed (%d).\n", r);
+				need_full_reset = true;
+				r = -EAGAIN;
+				goto end;
+			}
+		}
+
+		if (!r)
+			r = amdgpu_device_recover_vram(tmp_adev);
+		else
+			tmp_adev->asic_reset_res = r;
+	}
+
+end:
+	if (need_full_reset)
+		set_bit(AMDGPU_NEED_FULL_RESET, &reset_context->flags);
+	else
+		clear_bit(AMDGPU_NEED_FULL_RESET, &reset_context->flags);
+	return r;
+}
+
+static void amdgpu_device_set_mp1_state(struct amdgpu_device *adev)
+{
+
+	switch (amdgpu_asic_reset_method(adev)) {
+	case AMD_RESET_METHOD_MODE1:
+		adev->mp1_state = PP_MP1_STATE_SHUTDOWN;
+		break;
+	case AMD_RESET_METHOD_MODE2:
+		adev->mp1_state = PP_MP1_STATE_RESET;
+		break;
+	default:
+		adev->mp1_state = PP_MP1_STATE_NONE;
+		break;
+	}
+}
+
+static void amdgpu_device_unset_mp1_state(struct amdgpu_device *adev)
+{
+	amdgpu_vf_error_trans_all(adev);
+	adev->mp1_state = PP_MP1_STATE_NONE;
+}
+
+static void amdgpu_device_resume_display_audio(struct amdgpu_device *adev)
+{
+	struct pci_dev *p = NULL;
+
+	p = pci_get_domain_bus_and_slot(pci_domain_nr(adev->pdev->bus),
+			adev->pdev->bus->number, 1);
+	if (p) {
+		pm_runtime_enable(&(p->dev));
+		pm_runtime_resume(&(p->dev));
+	}
+
+	pci_dev_put(p);
+}
+
+static int amdgpu_device_suspend_display_audio(struct amdgpu_device *adev)
+{
+	enum amd_reset_method reset_method;
+	struct pci_dev *p = NULL;
+	u64 expires;
+
+	/*
+	 * For now, only BACO and mode1 reset are confirmed
+	 * to suffer the audio issue without proper suspended.
+	 */
+	reset_method = amdgpu_asic_reset_method(adev);
+	if ((reset_method != AMD_RESET_METHOD_BACO) &&
+	     (reset_method != AMD_RESET_METHOD_MODE1))
+		return -EINVAL;
+
+	p = pci_get_domain_bus_and_slot(pci_domain_nr(adev->pdev->bus),
+			adev->pdev->bus->number, 1);
+	if (!p)
+		return -ENODEV;
+
+	expires = pm_runtime_autosuspend_expiration(&(p->dev));
+	if (!expires)
+		/*
+		 * If we cannot get the audio device autosuspend delay,
+		 * a fixed 4S interval will be used. Considering 3S is
+		 * the audio controller default autosuspend delay setting.
+		 * 4S used here is guaranteed to cover that.
+		 */
+		expires = ktime_get_mono_fast_ns() + NSEC_PER_SEC * 4ULL;
+
+	while (!pm_runtime_status_suspended(&(p->dev))) {
+		if (!pm_runtime_suspend(&(p->dev)))
+			break;
+
+		if (expires < ktime_get_mono_fast_ns()) {
+			dev_warn(adev->dev, "failed to suspend display audio\n");
+			pci_dev_put(p);
+			/* TODO: abort the succeeding gpu reset? */
+			return -ETIMEDOUT;
+		}
+	}
+
+	pm_runtime_disable(&(p->dev));
+
+	pci_dev_put(p);
+	return 0;
+}
+
+static void amdgpu_device_recheck_guilty_jobs(
+	struct amdgpu_device *adev, struct list_head *device_list_handle,
+	struct amdgpu_reset_context *reset_context)
+{
+	int i, r = 0;
+
+	for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
+		struct amdgpu_ring *ring = adev->rings[i];
+		int ret = 0;
+		struct drm_sched_job *s_job;
+
+		if (!ring || !ring->sched.thread)
+			continue;
+
+		s_job = list_first_entry_or_null(&ring->sched.pending_list,
+				struct drm_sched_job, list);
+		if (s_job == NULL)
+			continue;
+
+		/* clear job's guilty and depend the folowing step to decide the real one */
+		drm_sched_reset_karma(s_job);
+		drm_sched_resubmit_jobs_ext(&ring->sched, 1);
+
+		if (!s_job->s_fence->parent) {
+			DRM_WARN("Failed to get a HW fence for job!");
+			continue;
+		}
+
+		ret = dma_fence_wait_timeout(s_job->s_fence->parent, false, ring->sched.timeout);
+		if (ret == 0) { /* timeout */
+			DRM_ERROR("Found the real bad job! ring:%s, job_id:%llx\n",
+						ring->sched.name, s_job->id);
+
+
+			amdgpu_fence_driver_isr_toggle(adev, true);
+
+			/* Clear this failed job from fence array */
+			amdgpu_fence_driver_clear_job_fences(ring);
+
+			amdgpu_fence_driver_isr_toggle(adev, false);
+
+			/* Since the job won't signal and we go for
+			 * another resubmit drop this parent pointer
+			 */
+			dma_fence_put(s_job->s_fence->parent);
+			s_job->s_fence->parent = NULL;
+
+			/* set guilty */
+			drm_sched_increase_karma(s_job);
+			amdgpu_reset_prepare_hwcontext(adev, reset_context);
+retry:
+			/* do hw reset */
+			if (amdgpu_sriov_vf(adev)) {
+				amdgpu_virt_fini_data_exchange(adev);
+				r = amdgpu_device_reset_sriov(adev, false);
+				if (r)
+					adev->asic_reset_res = r;
+			} else {
+				clear_bit(AMDGPU_SKIP_HW_RESET,
+					  &reset_context->flags);
+				r = amdgpu_do_asic_reset(device_list_handle,
+							 reset_context);
+				if (r && r == -EAGAIN)
+					goto retry;
+			}
+
+			/*
+			 * add reset counter so that the following
+			 * resubmitted job could flush vmid
+			 */
+			atomic_inc(&adev->gpu_reset_counter);
+			continue;
+		}
+
+		/* got the hw fence, signal finished fence */
+		atomic_dec(ring->sched.score);
+		dma_fence_get(&s_job->s_fence->finished);
+		dma_fence_signal(&s_job->s_fence->finished);
+		dma_fence_put(&s_job->s_fence->finished);
+
+		/* remove node from list and free the job */
+		spin_lock(&ring->sched.job_list_lock);
+		list_del_init(&s_job->list);
+		spin_unlock(&ring->sched.job_list_lock);
+		ring->sched.ops->free_job(s_job);
+	}
+}
+
+static inline void amdgpu_device_stop_pending_resets(struct amdgpu_device *adev)
+{
+	struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
+
+#if defined(CONFIG_DEBUG_FS)
+	if (!amdgpu_sriov_vf(adev))
+		cancel_work(&adev->reset_work);
+#endif
+
+	if (adev->kfd.dev)
+		cancel_work(&adev->kfd.reset_work);
+
+	if (amdgpu_sriov_vf(adev))
+		cancel_work(&adev->virt.flr_work);
+
+	if (con && adev->ras_enabled)
+		cancel_work(&con->recovery_work);
+
+}
+
+
+/**
+ * amdgpu_device_gpu_recover - reset the asic and recover scheduler
+ *
+ * @adev: amdgpu_device pointer
+ * @job: which job trigger hang
+ *
+ * Attempt to reset the GPU if it has hung (all asics).
+ * Attempt to do soft-reset or full-reset and reinitialize Asic
+ * Returns 0 for success or an error on failure.
+ */
+
+int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
+			      struct amdgpu_job *job,
+			      struct amdgpu_reset_context *reset_context)
+{
+	struct list_head device_list, *device_list_handle =  NULL;
+	bool job_signaled = false;
+	struct amdgpu_hive_info *hive = NULL;
+	struct amdgpu_device *tmp_adev = NULL;
+	int i, r = 0;
+	bool need_emergency_restart = false;
+	bool audio_suspended = false;
+	int tmp_vram_lost_counter;
+	bool gpu_reset_for_dev_remove = false;
+
+	gpu_reset_for_dev_remove =
+			test_bit(AMDGPU_RESET_FOR_DEVICE_REMOVE, &reset_context->flags) &&
+				test_bit(AMDGPU_NEED_FULL_RESET, &reset_context->flags);
+
+	/*
+	 * Special case: RAS triggered and full reset isn't supported
+	 */
+	need_emergency_restart = amdgpu_ras_need_emergency_restart(adev);
+
+	/*
+	 * Flush RAM to disk so that after reboot
+	 * the user can read log and see why the system rebooted.
+	 */
+	if (need_emergency_restart && amdgpu_ras_get_context(adev) &&
+		amdgpu_ras_get_context(adev)->reboot) {
+		DRM_WARN("Emergency reboot.");
+
+		ksys_sync_helper();
+		emergency_restart();
+	}
+
+	dev_info(adev->dev, "GPU %s begin!\n",
+		need_emergency_restart ? "jobs stop":"reset");
+
+	if (!amdgpu_sriov_vf(adev))
+		hive = amdgpu_get_xgmi_hive(adev);
+	if (hive)
+		mutex_lock(&hive->hive_lock);
+
+	reset_context->job = job;
+	reset_context->hive = hive;
+	/*
+	 * Build list of devices to reset.
+	 * In case we are in XGMI hive mode, resort the device list
+	 * to put adev in the 1st position.
+	 */
+	INIT_LIST_HEAD(&device_list);
+	if (!amdgpu_sriov_vf(adev) && (adev->gmc.xgmi.num_physical_nodes > 1)) {
+		list_for_each_entry(tmp_adev, &hive->device_list, gmc.xgmi.head) {
+			list_add_tail(&tmp_adev->reset_list, &device_list);
+			if (gpu_reset_for_dev_remove && adev->shutdown)
+				tmp_adev->shutdown = true;
+		}
+		if (!list_is_first(&adev->reset_list, &device_list))
+			list_rotate_to_front(&adev->reset_list, &device_list);
+		device_list_handle = &device_list;
+	} else {
+		list_add_tail(&adev->reset_list, &device_list);
+		device_list_handle = &device_list;
+	}
+
+	/* We need to lock reset domain only once both for XGMI and single device */
+	tmp_adev = list_first_entry(device_list_handle, struct amdgpu_device,
+				    reset_list);
+	amdgpu_device_lock_reset_domain(tmp_adev->reset_domain);
+
+	/* block all schedulers and reset given job's ring */
+	list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
+
+		amdgpu_device_set_mp1_state(tmp_adev);
+
+		/*
+		 * Try to put the audio codec into suspend state
+		 * before gpu reset started.
+		 *
+		 * Due to the power domain of the graphics device
+		 * is shared with AZ power domain. Without this,
+		 * we may change the audio hardware from behind
+		 * the audio driver's back. That will trigger
+		 * some audio codec errors.
+		 */
+		if (!amdgpu_device_suspend_display_audio(tmp_adev))
+			audio_suspended = true;
+
+		amdgpu_ras_set_error_query_ready(tmp_adev, false);
+
+		cancel_delayed_work_sync(&tmp_adev->delayed_init_work);
+
+		if (!amdgpu_sriov_vf(tmp_adev))
+			amdgpu_amdkfd_pre_reset(tmp_adev);
+
+		/*
+		 * Mark these ASICs to be reseted as untracked first
+		 * And add them back after reset completed
+		 */
+		amdgpu_unregister_gpu_instance(tmp_adev);
+
+		drm_fb_helper_set_suspend_unlocked(adev_to_drm(tmp_adev)->fb_helper, true);
+
+		/* disable ras on ALL IPs */
+		if (!need_emergency_restart &&
+		      amdgpu_device_ip_need_full_reset(tmp_adev))
+			amdgpu_ras_suspend(tmp_adev);
+
+		for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
+			struct amdgpu_ring *ring = tmp_adev->rings[i];
+
+			if (!ring || !ring->sched.thread)
+				continue;
+
+			drm_sched_stop(&ring->sched, job ? &job->base : NULL);
+
+			if (need_emergency_restart)
+				amdgpu_job_stop_all_jobs_on_sched(&ring->sched);
+		}
+		atomic_inc(&tmp_adev->gpu_reset_counter);
+	}
+
+	if (need_emergency_restart)
+		goto skip_sched_resume;
+
+	/*
+	 * Must check guilty signal here since after this point all old
+	 * HW fences are force signaled.
+	 *
+	 * job->base holds a reference to parent fence
+	 */
+	if (job && dma_fence_is_signaled(&job->hw_fence)) {
+		job_signaled = true;
+		dev_info(adev->dev, "Guilty job already signaled, skipping HW reset");
+		goto skip_hw_reset;
+	}
+
+retry:	/* Rest of adevs pre asic reset from XGMI hive. */
+	list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
+		if (gpu_reset_for_dev_remove) {
+			/* Workaroud for ASICs need to disable SMC first */
+			amdgpu_device_smu_fini_early(tmp_adev);
+		}
+		r = amdgpu_device_pre_asic_reset(tmp_adev, reset_context);
+		/*TODO Should we stop ?*/
+		if (r) {
+			dev_err(tmp_adev->dev, "GPU pre asic reset failed with err, %d for drm dev, %s ",
+				  r, adev_to_drm(tmp_adev)->unique);
+			tmp_adev->asic_reset_res = r;
+		}
+
+		/*
+		 * Drop all pending non scheduler resets. Scheduler resets
+		 * were already dropped during drm_sched_stop
+		 */
+		amdgpu_device_stop_pending_resets(tmp_adev);
+	}
+
+	tmp_vram_lost_counter = atomic_read(&((adev)->vram_lost_counter));
+	/* Actual ASIC resets if needed.*/
+	/* Host driver will handle XGMI hive reset for SRIOV */
+	if (amdgpu_sriov_vf(adev)) {
+		r = amdgpu_device_reset_sriov(adev, job ? false : true);
+		if (r)
+			adev->asic_reset_res = r;
+
+		/* Aldebaran supports ras in SRIOV, so need resume ras during reset */
+		if (adev->ip_versions[GC_HWIP][0] == IP_VERSION(9, 4, 2))
+			amdgpu_ras_resume(adev);
+	} else {
+		r = amdgpu_do_asic_reset(device_list_handle, reset_context);
+		if (r && r == -EAGAIN)
+			goto retry;
+
+		if (!r && gpu_reset_for_dev_remove)
+			goto recover_end;
+	}
+
+skip_hw_reset:
+
+	/* Post ASIC reset for all devs .*/
+	list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
+
+		/*
+		 * Sometimes a later bad compute job can block a good gfx job as gfx
+		 * and compute ring share internal GC HW mutually. We add an additional
+		 * guilty jobs recheck step to find the real guilty job, it synchronously
+		 * submits and pends for the first job being signaled. If it gets timeout,
+		 * we identify it as a real guilty job.
+		 */
+		if (amdgpu_gpu_recovery == 2 &&
+			!(tmp_vram_lost_counter < atomic_read(&adev->vram_lost_counter)))
+			amdgpu_device_recheck_guilty_jobs(
+				tmp_adev, device_list_handle, reset_context);
+
+		for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
+			struct amdgpu_ring *ring = tmp_adev->rings[i];
+
+			if (!ring || !ring->sched.thread)
+				continue;
+
+			/* No point to resubmit jobs if we didn't HW reset*/
+			if (!tmp_adev->asic_reset_res && !job_signaled)
+				drm_sched_resubmit_jobs(&ring->sched);
+
+			drm_sched_start(&ring->sched, !tmp_adev->asic_reset_res);
+		}
+
+		if (adev->enable_mes && adev->ip_versions[GC_HWIP][0] != IP_VERSION(11, 0, 3))
+			amdgpu_mes_self_test(tmp_adev);
+
+		if (!drm_drv_uses_atomic_modeset(adev_to_drm(tmp_adev)) && !job_signaled) {
+			drm_helper_resume_force_mode(adev_to_drm(tmp_adev));
+		}
+
+		if (tmp_adev->asic_reset_res)
+			r = tmp_adev->asic_reset_res;
+
+		tmp_adev->asic_reset_res = 0;
+
+		if (r) {
+			/* bad news, how to tell it to userspace ? */
+			dev_info(tmp_adev->dev, "GPU reset(%d) failed\n", atomic_read(&tmp_adev->gpu_reset_counter));
+			amdgpu_vf_error_put(tmp_adev, AMDGIM_ERROR_VF_GPU_RESET_FAIL, 0, r);
+		} else {
+			dev_info(tmp_adev->dev, "GPU reset(%d) succeeded!\n", atomic_read(&tmp_adev->gpu_reset_counter));
+			if (amdgpu_acpi_smart_shift_update(adev_to_drm(tmp_adev), AMDGPU_SS_DEV_D0))
+				DRM_WARN("smart shift update failed\n");
+		}
+	}
+
+skip_sched_resume:
+	list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
+		/* unlock kfd: SRIOV would do it separately */
+		if (!need_emergency_restart && !amdgpu_sriov_vf(tmp_adev))
+			amdgpu_amdkfd_post_reset(tmp_adev);
+
+		/* kfd_post_reset will do nothing if kfd device is not initialized,
+		 * need to bring up kfd here if it's not be initialized before
+		 */
+		if (!adev->kfd.init_complete)
+			amdgpu_amdkfd_device_init(adev);
+
+		if (audio_suspended)
+			amdgpu_device_resume_display_audio(tmp_adev);
+
+		amdgpu_device_unset_mp1_state(tmp_adev);
+	}
+
+recover_end:
+	tmp_adev = list_first_entry(device_list_handle, struct amdgpu_device,
+					    reset_list);
+	amdgpu_device_unlock_reset_domain(tmp_adev->reset_domain);
+
+	if (hive) {
+		mutex_unlock(&hive->hive_lock);
+		amdgpu_put_xgmi_hive(hive);
+	}
+
+	if (r)
+		dev_info(adev->dev, "GPU reset end with ret = %d\n", r);
+
+	atomic_set(&adev->reset_domain->reset_res, r);
+	return r;
+}
+
+/**
+ * amdgpu_device_get_pcie_info - fence pcie info about the PCIE slot
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Fetchs and stores in the driver the PCIE capabilities (gen speed
+ * and lanes) of the slot the device is in. Handles APUs and
+ * virtualized environments where PCIE config space may not be available.
+ */
+static void amdgpu_device_get_pcie_info(struct amdgpu_device *adev)
+{
+	struct pci_dev *pdev;
+	enum pci_bus_speed speed_cap, platform_speed_cap;
+	enum pcie_link_width platform_link_width;
+
+	if (amdgpu_pcie_gen_cap)
+		adev->pm.pcie_gen_mask = amdgpu_pcie_gen_cap;
+
+	if (amdgpu_pcie_lane_cap)
+		adev->pm.pcie_mlw_mask = amdgpu_pcie_lane_cap;
+
+	/* covers APUs as well */
+	if (pci_is_root_bus(adev->pdev->bus)) {
+		if (adev->pm.pcie_gen_mask == 0)
+			adev->pm.pcie_gen_mask = AMDGPU_DEFAULT_PCIE_GEN_MASK;
+		if (adev->pm.pcie_mlw_mask == 0)
+			adev->pm.pcie_mlw_mask = AMDGPU_DEFAULT_PCIE_MLW_MASK;
+		return;
+	}
+
+	if (adev->pm.pcie_gen_mask && adev->pm.pcie_mlw_mask)
+		return;
+
+	pcie_bandwidth_available(adev->pdev, NULL,
+				 &platform_speed_cap, &platform_link_width);
+
+	if (adev->pm.pcie_gen_mask == 0) {
+		/* asic caps */
+		pdev = adev->pdev;
+		speed_cap = pcie_get_speed_cap(pdev);
+		if (speed_cap == PCI_SPEED_UNKNOWN) {
+			adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
+						  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
+						  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3);
+		} else {
+			if (speed_cap == PCIE_SPEED_32_0GT)
+				adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
+							  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
+							  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3 |
+							  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN4 |
+							  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN5);
+			else if (speed_cap == PCIE_SPEED_16_0GT)
+				adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
+							  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
+							  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3 |
+							  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN4);
+			else if (speed_cap == PCIE_SPEED_8_0GT)
+				adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
+							  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
+							  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3);
+			else if (speed_cap == PCIE_SPEED_5_0GT)
+				adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
+							  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2);
+			else
+				adev->pm.pcie_gen_mask |= CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1;
+		}
+		/* platform caps */
+		if (platform_speed_cap == PCI_SPEED_UNKNOWN) {
+			adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
+						   CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2);
+		} else {
+			if (platform_speed_cap == PCIE_SPEED_32_0GT)
+				adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
+							   CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
+							   CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3 |
+							   CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4 |
+							   CAIL_PCIE_LINK_SPEED_SUPPORT_GEN5);
+			else if (platform_speed_cap == PCIE_SPEED_16_0GT)
+				adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
+							   CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
+							   CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3 |
+							   CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4);
+			else if (platform_speed_cap == PCIE_SPEED_8_0GT)
+				adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
+							   CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
+							   CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3);
+			else if (platform_speed_cap == PCIE_SPEED_5_0GT)
+				adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
+							   CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2);
+			else
+				adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1;
+
+		}
+	}
+	if (adev->pm.pcie_mlw_mask == 0) {
+		if (platform_link_width == PCIE_LNK_WIDTH_UNKNOWN) {
+			adev->pm.pcie_mlw_mask |= AMDGPU_DEFAULT_PCIE_MLW_MASK;
+		} else {
+			switch (platform_link_width) {
+			case PCIE_LNK_X32:
+				adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X32 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
+				break;
+			case PCIE_LNK_X16:
+				adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
+				break;
+			case PCIE_LNK_X12:
+				adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
+				break;
+			case PCIE_LNK_X8:
+				adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
+				break;
+			case PCIE_LNK_X4:
+				adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
+				break;
+			case PCIE_LNK_X2:
+				adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
+				break;
+			case PCIE_LNK_X1:
+				adev->pm.pcie_mlw_mask = CAIL_PCIE_LINK_WIDTH_SUPPORT_X1;
+				break;
+			default:
+				break;
+			}
+		}
+	}
+}
+
+/**
+ * amdgpu_device_is_peer_accessible - Check peer access through PCIe BAR
+ *
+ * @adev: amdgpu_device pointer
+ * @peer_adev: amdgpu_device pointer for peer device trying to access @adev
+ *
+ * Return true if @peer_adev can access (DMA) @adev through the PCIe
+ * BAR, i.e. @adev is "large BAR" and the BAR matches the DMA mask of
+ * @peer_adev.
+ */
+bool amdgpu_device_is_peer_accessible(struct amdgpu_device *adev,
+				      struct amdgpu_device *peer_adev)
+{
+#ifdef CONFIG_HSA_AMD_P2P
+	uint64_t address_mask = peer_adev->dev->dma_mask ?
+		~*peer_adev->dev->dma_mask : ~((1ULL << 32) - 1);
+	resource_size_t aper_limit =
+		adev->gmc.aper_base + adev->gmc.aper_size - 1;
+	bool p2p_access =
+		!adev->gmc.xgmi.connected_to_cpu &&
+		!(pci_p2pdma_distance(adev->pdev, peer_adev->dev, false) < 0);
+
+	return pcie_p2p && p2p_access && (adev->gmc.visible_vram_size &&
+		adev->gmc.real_vram_size == adev->gmc.visible_vram_size &&
+		!(adev->gmc.aper_base & address_mask ||
+		  aper_limit & address_mask));
+#else
+	return false;
+#endif
+}
+
+int amdgpu_device_baco_enter(struct drm_device *dev)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
+
+	if (!amdgpu_device_supports_baco(adev_to_drm(adev)))
+		return -ENOTSUPP;
+
+	if (ras && adev->ras_enabled &&
+	    adev->nbio.funcs->enable_doorbell_interrupt)
+		adev->nbio.funcs->enable_doorbell_interrupt(adev, false);
+
+	return amdgpu_dpm_baco_enter(adev);
+}
+
+int amdgpu_device_baco_exit(struct drm_device *dev)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
+	int ret = 0;
+
+	if (!amdgpu_device_supports_baco(adev_to_drm(adev)))
+		return -ENOTSUPP;
+
+	ret = amdgpu_dpm_baco_exit(adev);
+	if (ret)
+		return ret;
+
+	if (ras && adev->ras_enabled &&
+	    adev->nbio.funcs->enable_doorbell_interrupt)
+		adev->nbio.funcs->enable_doorbell_interrupt(adev, true);
+
+	if (amdgpu_passthrough(adev) &&
+	    adev->nbio.funcs->clear_doorbell_interrupt)
+		adev->nbio.funcs->clear_doorbell_interrupt(adev);
+
+	return 0;
+}
+
+/**
+ * amdgpu_pci_error_detected - Called when a PCI error is detected.
+ * @pdev: PCI device struct
+ * @state: PCI channel state
+ *
+ * Description: Called when a PCI error is detected.
+ *
+ * Return: PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT.
+ */
+pci_ers_result_t amdgpu_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	int i;
+
+	DRM_INFO("PCI error: detected callback, state(%d)!!\n", state);
+
+	if (adev->gmc.xgmi.num_physical_nodes > 1) {
+		DRM_WARN("No support for XGMI hive yet...");
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+
+	adev->pci_channel_state = state;
+
+	switch (state) {
+	case pci_channel_io_normal:
+		return PCI_ERS_RESULT_CAN_RECOVER;
+	/* Fatal error, prepare for slot reset */
+	case pci_channel_io_frozen:
+		/*
+		 * Locking adev->reset_domain->sem will prevent any external access
+		 * to GPU during PCI error recovery
+		 */
+		amdgpu_device_lock_reset_domain(adev->reset_domain);
+		amdgpu_device_set_mp1_state(adev);
+
+		/*
+		 * Block any work scheduling as we do for regular GPU reset
+		 * for the duration of the recovery
+		 */
+		for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
+			struct amdgpu_ring *ring = adev->rings[i];
+
+			if (!ring || !ring->sched.thread)
+				continue;
+
+			drm_sched_stop(&ring->sched, NULL);
+		}
+		atomic_inc(&adev->gpu_reset_counter);
+		return PCI_ERS_RESULT_NEED_RESET;
+	case pci_channel_io_perm_failure:
+		/* Permanent error, prepare for device removal */
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+
+	return PCI_ERS_RESULT_NEED_RESET;
+}
+
+/**
+ * amdgpu_pci_mmio_enabled - Enable MMIO and dump debug registers
+ * @pdev: pointer to PCI device
+ */
+pci_ers_result_t amdgpu_pci_mmio_enabled(struct pci_dev *pdev)
+{
+
+	DRM_INFO("PCI error: mmio enabled callback!!\n");
+
+	/* TODO - dump whatever for debugging purposes */
+
+	/* This called only if amdgpu_pci_error_detected returns
+	 * PCI_ERS_RESULT_CAN_RECOVER. Read/write to the device still
+	 * works, no need to reset slot.
+	 */
+
+	return PCI_ERS_RESULT_RECOVERED;
+}
+
+/**
+ * amdgpu_pci_slot_reset - Called when PCI slot has been reset.
+ * @pdev: PCI device struct
+ *
+ * Description: This routine is called by the pci error recovery
+ * code after the PCI slot has been reset, just before we
+ * should resume normal operations.
+ */
+pci_ers_result_t amdgpu_pci_slot_reset(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	int r, i;
+	struct amdgpu_reset_context reset_context;
+	u32 memsize;
+	struct list_head device_list;
+
+	DRM_INFO("PCI error: slot reset callback!!\n");
+
+	memset(&reset_context, 0, sizeof(reset_context));
+
+	INIT_LIST_HEAD(&device_list);
+	list_add_tail(&adev->reset_list, &device_list);
+
+	/* wait for asic to come out of reset */
+	msleep(500);
+
+	/* Restore PCI confspace */
+	amdgpu_device_load_pci_state(pdev);
+
+	/* confirm  ASIC came out of reset */
+	for (i = 0; i < adev->usec_timeout; i++) {
+		memsize = amdgpu_asic_get_config_memsize(adev);
+
+		if (memsize != 0xffffffff)
+			break;
+		udelay(1);
+	}
+	if (memsize == 0xffffffff) {
+		r = -ETIME;
+		goto out;
+	}
+
+	reset_context.method = AMD_RESET_METHOD_NONE;
+	reset_context.reset_req_dev = adev;
+	set_bit(AMDGPU_NEED_FULL_RESET, &reset_context.flags);
+	set_bit(AMDGPU_SKIP_HW_RESET, &reset_context.flags);
+
+	adev->no_hw_access = true;
+	r = amdgpu_device_pre_asic_reset(adev, &reset_context);
+	adev->no_hw_access = false;
+	if (r)
+		goto out;
+
+	r = amdgpu_do_asic_reset(&device_list, &reset_context);
+
+out:
+	if (!r) {
+		if (amdgpu_device_cache_pci_state(adev->pdev))
+			pci_restore_state(adev->pdev);
+
+		DRM_INFO("PCIe error recovery succeeded\n");
+	} else {
+		DRM_ERROR("PCIe error recovery failed, err:%d", r);
+		amdgpu_device_unset_mp1_state(adev);
+		amdgpu_device_unlock_reset_domain(adev->reset_domain);
+	}
+
+	return r ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
+}
+
+/**
+ * amdgpu_pci_resume() - resume normal ops after PCI reset
+ * @pdev: pointer to PCI device
+ *
+ * Called when the error recovery driver tells us that its
+ * OK to resume normal operation.
+ */
+void amdgpu_pci_resume(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	int i;
+
+
+	DRM_INFO("PCI error: resume callback!!\n");
+
+	/* Only continue execution for the case of pci_channel_io_frozen */
+	if (adev->pci_channel_state != pci_channel_io_frozen)
+		return;
+
+	for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
+		struct amdgpu_ring *ring = adev->rings[i];
+
+		if (!ring || !ring->sched.thread)
+			continue;
+
+
+		drm_sched_resubmit_jobs(&ring->sched);
+		drm_sched_start(&ring->sched, true);
+	}
+
+	amdgpu_device_unset_mp1_state(adev);
+	amdgpu_device_unlock_reset_domain(adev->reset_domain);
+}
+
+bool amdgpu_device_cache_pci_state(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	int r;
+
+	r = pci_save_state(pdev);
+	if (!r) {
+		kfree(adev->pci_state);
+
+		adev->pci_state = pci_store_saved_state(pdev);
+
+		if (!adev->pci_state) {
+			DRM_ERROR("Failed to store PCI saved state");
+			return false;
+		}
+	} else {
+		DRM_WARN("Failed to save PCI state, err:%d\n", r);
+		return false;
+	}
+
+	return true;
+}
+
+bool amdgpu_device_load_pci_state(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	int r;
+
+	if (!adev->pci_state)
+		return false;
+
+	r = pci_load_saved_state(pdev, adev->pci_state);
+
+	if (!r) {
+		pci_restore_state(pdev);
+	} else {
+		DRM_WARN("Failed to load PCI state, err:%d\n", r);
+		return false;
+	}
+
+	return true;
+}
+
+void amdgpu_device_flush_hdp(struct amdgpu_device *adev,
+		struct amdgpu_ring *ring)
+{
+#ifdef CONFIG_X86_64
+	if ((adev->flags & AMD_IS_APU) && !amdgpu_passthrough(adev))
+		return;
+#endif
+	if (adev->gmc.xgmi.connected_to_cpu)
+		return;
+
+	if (ring && ring->funcs->emit_hdp_flush)
+		amdgpu_ring_emit_hdp_flush(ring);
+	else
+		amdgpu_asic_flush_hdp(adev, ring);
+}
+
+void amdgpu_device_invalidate_hdp(struct amdgpu_device *adev,
+		struct amdgpu_ring *ring)
+{
+#ifdef CONFIG_X86_64
+	if ((adev->flags & AMD_IS_APU) && !amdgpu_passthrough(adev))
+		return;
+#endif
+	if (adev->gmc.xgmi.connected_to_cpu)
+		return;
+
+	amdgpu_asic_invalidate_hdp(adev, ring);
+}
+
+int amdgpu_in_reset(struct amdgpu_device *adev)
+{
+	return atomic_read(&adev->reset_domain->in_gpu_reset);
+	}
+	
+/**
+ * amdgpu_device_halt() - bring hardware to some kind of halt state
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Bring hardware to some kind of halt state so that no one can touch it
+ * any more. It will help to maintain error context when error occurred.
+ * Compare to a simple hang, the system will keep stable at least for SSH
+ * access. Then it should be trivial to inspect the hardware state and
+ * see what's going on. Implemented as following:
+ *
+ * 1. drm_dev_unplug() makes device inaccessible to user space(IOCTLs, etc),
+ *    clears all CPU mappings to device, disallows remappings through page faults
+ * 2. amdgpu_irq_disable_all() disables all interrupts
+ * 3. amdgpu_fence_driver_hw_fini() signals all HW fences
+ * 4. set adev->no_hw_access to avoid potential crashes after setp 5
+ * 5. amdgpu_device_unmap_mmio() clears all MMIO mappings
+ * 6. pci_disable_device() and pci_wait_for_pending_transaction()
+ *    flush any in flight DMA operations
+ */
+void amdgpu_device_halt(struct amdgpu_device *adev)
+{
+	struct pci_dev *pdev = adev->pdev;
+	struct drm_device *ddev = adev_to_drm(adev);
+
+	drm_dev_unplug(ddev);
+
+	amdgpu_irq_disable_all(adev);
+
+	amdgpu_fence_driver_hw_fini(adev);
+
+	adev->no_hw_access = true;
+
+	amdgpu_device_unmap_mmio(adev);
+
+	pci_disable_device(pdev);
+	pci_wait_for_pending_transaction(pdev);
+}
+
+u32 amdgpu_device_pcie_port_rreg(struct amdgpu_device *adev,
+				u32 reg)
+{
+	unsigned long flags, address, data;
+	u32 r;
+
+	address = adev->nbio.funcs->get_pcie_port_index_offset(adev);
+	data = adev->nbio.funcs->get_pcie_port_data_offset(adev);
+
+	spin_lock_irqsave(&adev->pcie_idx_lock, flags);
+	WREG32(address, reg * 4);
+	(void)RREG32(address);
+	r = RREG32(data);
+	spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
+	return r;
+}
+
+void amdgpu_device_pcie_port_wreg(struct amdgpu_device *adev,
+				u32 reg, u32 v)
+{
+	unsigned long flags, address, data;
+
+	address = adev->nbio.funcs->get_pcie_port_index_offset(adev);
+	data = adev->nbio.funcs->get_pcie_port_data_offset(adev);
+
+	spin_lock_irqsave(&adev->pcie_idx_lock, flags);
+	WREG32(address, reg * 4);
+	(void)RREG32(address);
+	WREG32(data, v);
+	(void)RREG32(data);
+	spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
+}
+
+/**
+ * amdgpu_device_switch_gang - switch to a new gang
+ * @adev: amdgpu_device pointer
+ * @gang: the gang to switch to
+ *
+ * Try to switch to a new gang.
+ * Returns: NULL if we switched to the new gang or a reference to the current
+ * gang leader.
+ */
+struct dma_fence *amdgpu_device_switch_gang(struct amdgpu_device *adev,
+					    struct dma_fence *gang)
+{
+	struct dma_fence *old = NULL;
+
+	do {
+		dma_fence_put(old);
+		rcu_read_lock();
+		old = dma_fence_get_rcu_safe(&adev->gang_submit);
+		rcu_read_unlock();
+
+		if (old == gang)
+			break;
+
+		if (!dma_fence_is_signaled(old))
+			return old;
+
+	} while (cmpxchg((struct dma_fence __force **)&adev->gang_submit,
+			 old, gang) != old);
+
+	dma_fence_put(old);
+	return NULL;
+}
+
+bool amdgpu_device_has_display_hardware(struct amdgpu_device *adev)
+{
+	switch (adev->asic_type) {
+#ifdef CONFIG_DRM_AMDGPU_SI
+	case CHIP_HAINAN:
+#endif
+	case CHIP_TOPAZ:
+		/* chips with no display hardware */
+		return false;
+#ifdef CONFIG_DRM_AMDGPU_SI
+	case CHIP_TAHITI:
+	case CHIP_PITCAIRN:
+	case CHIP_VERDE:
+	case CHIP_OLAND:
+#endif
+#ifdef CONFIG_DRM_AMDGPU_CIK
+	case CHIP_BONAIRE:
+	case CHIP_HAWAII:
+	case CHIP_KAVERI:
+	case CHIP_KABINI:
+	case CHIP_MULLINS:
+#endif
+	case CHIP_TONGA:
+	case CHIP_FIJI:
+	case CHIP_POLARIS10:
+	case CHIP_POLARIS11:
+	case CHIP_POLARIS12:
+	case CHIP_VEGAM:
+	case CHIP_CARRIZO:
+	case CHIP_STONEY:
+		/* chips with display hardware */
+		return true;
+	default:
+		/* IP discovery */
+		if (!adev->ip_versions[DCE_HWIP][0] ||
+		    (adev->harvest_ip_mask & AMD_HARVEST_IP_DMU_MASK))
+			return false;
+		return true;
+	}
+}