drm/amdgpu/vcn: add vcn support for VCN4_0_3

Add vcn support for VCN4_0_3.

Signed-off-by: James Zhu <[e-mail]>
Reviewed-by: Leo Liu <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/amdgpu/Makefile

···
 	vcn_v2_5.o \
 	vcn_v3_0.o \
 	vcn_v4_0.o \
+	vcn_v4_0_3.o \
 	amdgpu_jpeg.o \
 	jpeg_v1_0.o \
 	jpeg_v2_0.o \

drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c

···
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include <linux/firmware.h>
+#include <drm/drm_drv.h>
+
+#include "amdgpu.h"
+#include "amdgpu_vcn.h"
+#include "amdgpu_pm.h"
+#include "soc15.h"
+#include "soc15d.h"
+#include "soc15_hw_ip.h"
+#include "vcn_v2_0.h"
+#include "vcn_sw_ring.h"
+
+#include "vcn/vcn_4_0_3_offset.h"
+#include "vcn/vcn_4_0_3_sh_mask.h"
+#include "ivsrcid/vcn/irqsrcs_vcn_2_0.h"
+
+#define mmUVD_DPG_LMA_CTL		regUVD_DPG_LMA_CTL
+#define mmUVD_DPG_LMA_CTL_BASE_IDX	regUVD_DPG_LMA_CTL_BASE_IDX
+#define mmUVD_DPG_LMA_DATA		regUVD_DPG_LMA_DATA
+#define mmUVD_DPG_LMA_DATA_BASE_IDX	regUVD_DPG_LMA_DATA_BASE_IDX
+
+#define VCN_VID_SOC_ADDRESS_2_0		0x1fb00
+#define VCN1_VID_SOC_ADDRESS_3_0	0x48300
+
+static void vcn_v4_0_3_set_dec_ring_funcs(struct amdgpu_device *adev);
+static void vcn_v4_0_3_set_irq_funcs(struct amdgpu_device *adev);
+static int vcn_v4_0_3_set_powergating_state(void *handle,
+		enum amd_powergating_state state);
+static int vcn_v4_0_3_pause_dpg_mode(struct amdgpu_device *adev,
+		int inst_idx, struct dpg_pause_state *new_state);
+
+/**
+ * vcn_v4_0_3_early_init - set function pointers
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * Set ring and irq function pointers
+ */
+static int vcn_v4_0_3_early_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	vcn_v4_0_3_set_dec_ring_funcs(adev);
+	vcn_v4_0_3_set_irq_funcs(adev);
+
+	return 0;
+}
+
+/**
+ * vcn_v4_0_3_sw_init - sw init for VCN block
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * Load firmware and sw initialization
+ */
+static int vcn_v4_0_3_sw_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	volatile struct amdgpu_fw_shared *fw_shared;
+	struct amdgpu_ring *ring;
+	int r;
+
+	r = amdgpu_vcn_sw_init(adev);
+	if (r)
+		return r;
+
+	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
+		const struct common_firmware_header *hdr;
+		hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
+		adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].ucode_id = AMDGPU_UCODE_ID_VCN;
+		adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].fw = adev->vcn.fw;
+		adev->firmware.fw_size +=
+			ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
+
+		DRM_DEV_INFO(adev->dev, "Will use PSP to load VCN firmware\n");
+	}
+
+	r = amdgpu_vcn_resume(adev);
+	if (r)
+		return r;
+
+	/* VCN DEC TRAP */
+	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN,
+		VCN_2_0__SRCID__UVD_SYSTEM_MESSAGE_INTERRUPT, &adev->vcn.inst->irq);
+	if (r)
+		return r;
+
+	ring = &adev->vcn.inst->ring_dec;
+	ring->use_doorbell = false;
+	ring->vm_hub = AMDGPU_MMHUB0(0);
+	sprintf(ring->name, "vcn_dec");
+	r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,
+			     AMDGPU_RING_PRIO_DEFAULT,
+			     &adev->vcn.inst->sched_score);
+	if (r)
+		return r;
+
+	fw_shared = adev->vcn.inst->fw_shared.cpu_addr;
+	fw_shared->present_flag_0 |= cpu_to_le32(AMDGPU_VCN_SW_RING_FLAG) |
+				     cpu_to_le32(AMDGPU_VCN_MULTI_QUEUE_FLAG) |
+				     cpu_to_le32(AMDGPU_VCN_FW_SHARED_FLAG_0_RB);
+	fw_shared->sw_ring.is_enabled = cpu_to_le32(true);
+
+	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
+		adev->vcn.pause_dpg_mode = vcn_v4_0_3_pause_dpg_mode;
+
+	return 0;
+}
+
+/**
+ * vcn_v4_0_3_sw_fini - sw fini for VCN block
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * VCN suspend and free up sw allocation
+ */
+static int vcn_v4_0_3_sw_fini(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	int r, idx;
+
+	if (drm_dev_enter(&adev->ddev, &idx)) {
+		volatile struct amdgpu_fw_shared *fw_shared;
+
+		fw_shared = adev->vcn.inst->fw_shared.cpu_addr;
+		fw_shared->present_flag_0 = 0;
+		fw_shared->sw_ring.is_enabled = cpu_to_le32(false);
+
+		drm_dev_exit(idx);
+	}
+
+	r = amdgpu_vcn_suspend(adev);
+	if (r)
+		return r;
+
+	r = amdgpu_vcn_sw_fini(adev);
+
+	return r;
+}
+
+/**
+ * vcn_v4_0_3_hw_init - start and test VCN block
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * Initialize the hardware, boot up the VCPU and do some testing
+ */
+static int vcn_v4_0_3_hw_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
+	int r;
+
+	r = amdgpu_ring_test_helper(ring);
+
+	if (!r)
+		DRM_DEV_INFO(adev->dev, "VCN decode initialized successfully(under %s).\n",
+			(adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)?"DPG Mode":"SPG Mode");
+
+	return r;
+}
+
+/**
+ * vcn_v4_0_3_hw_fini - stop the hardware block
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * Stop the VCN block, mark ring as not ready any more
+ */
+static int vcn_v4_0_3_hw_fini(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	cancel_delayed_work_sync(&adev->vcn.idle_work);
+
+	if (adev->vcn.cur_state != AMD_PG_STATE_GATE)
+		vcn_v4_0_3_set_powergating_state(adev, AMD_PG_STATE_GATE);
+
+	return 0;
+}
+
+/**
+ * vcn_v4_0_3_suspend - suspend VCN block
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * HW fini and suspend VCN block
+ */
+static int vcn_v4_0_3_suspend(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	int r;
+
+	r = vcn_v4_0_3_hw_fini(adev);
+	if (r)
+		return r;
+
+	r = amdgpu_vcn_suspend(adev);
+
+	return r;
+}
+
+/**
+ * vcn_v4_0_3_resume - resume VCN block
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * Resume firmware and hw init VCN block
+ */
+static int vcn_v4_0_3_resume(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	int r;
+
+	r = amdgpu_vcn_resume(adev);
+	if (r)
+		return r;
+
+	r = vcn_v4_0_3_hw_init(adev);
+
+	return r;
+}
+
+/**
+ * vcn_v4_0_3_mc_resume - memory controller programming
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Let the VCN memory controller know it's offsets
+ */
+static void vcn_v4_0_3_mc_resume(struct amdgpu_device *adev)
+{
+	uint32_t offset, size;
+	const struct common_firmware_header *hdr;
+
+	hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
+	size = AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8);
+
+	/* cache window 0: fw */
+	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
+		WREG32_SOC15(VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
+			(adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo));
+		WREG32_SOC15(VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
+			(adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi));
+		WREG32_SOC15(VCN, 0, regUVD_VCPU_CACHE_OFFSET0, 0);
+		offset = 0;
+	} else {
+		WREG32_SOC15(VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
+			lower_32_bits(adev->vcn.inst->gpu_addr));
+		WREG32_SOC15(VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
+			upper_32_bits(adev->vcn.inst->gpu_addr));
+		offset = size;
+		if (amdgpu_emu_mode == 1)
+			/* No signed header here */
+			WREG32_SOC15(VCN, 0, regUVD_VCPU_CACHE_OFFSET0, 0);
+		else
+			WREG32_SOC15(VCN, 0, regUVD_VCPU_CACHE_OFFSET0,
+				AMDGPU_UVD_FIRMWARE_OFFSET >> 3);
+	}
+	WREG32_SOC15(VCN, 0, regUVD_VCPU_CACHE_SIZE0, size);
+
+	/* cache window 1: stack */
+	WREG32_SOC15(VCN, 0, regUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
+		lower_32_bits(adev->vcn.inst->gpu_addr + offset));
+	WREG32_SOC15(VCN, 0, regUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
+		upper_32_bits(adev->vcn.inst->gpu_addr + offset));
+	WREG32_SOC15(VCN, 0, regUVD_VCPU_CACHE_OFFSET1, 0);
+	WREG32_SOC15(VCN, 0, regUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE);
+
+	/* cache window 2: context */
+	WREG32_SOC15(VCN, 0, regUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
+		lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
+	WREG32_SOC15(VCN, 0, regUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
+		upper_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
+	WREG32_SOC15(VCN, 0, regUVD_VCPU_CACHE_OFFSET2, 0);
+	WREG32_SOC15(VCN, 0, regUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE);
+
+	/* non-cache window */
+	WREG32_SOC15(VCN, 0, regUVD_LMI_VCPU_NC0_64BIT_BAR_LOW,
+		lower_32_bits(adev->vcn.inst->fw_shared.gpu_addr));
+	WREG32_SOC15(VCN, 0, regUVD_LMI_VCPU_NC0_64BIT_BAR_HIGH,
+		upper_32_bits(adev->vcn.inst->fw_shared.gpu_addr));
+	WREG32_SOC15(VCN, 0, regUVD_VCPU_NONCACHE_OFFSET0, 0);
+	WREG32_SOC15(VCN, 0, regUVD_VCPU_NONCACHE_SIZE0,
+		AMDGPU_GPU_PAGE_ALIGN(sizeof(struct amdgpu_fw_shared)));
+}
+
+/**
+ * vcn_v4_0_mc_resume_dpg_mode - memory controller programming for dpg mode
+ *
+ * @adev: amdgpu_device pointer
+ * @indirect: indirectly write sram
+ *
+ * Let the VCN memory controller know it's offsets with dpg mode
+ */
+static void vcn_v4_0_3_mc_resume_dpg_mode(struct amdgpu_device *adev, bool indirect)
+{
+	uint32_t offset, size;
+	const struct common_firmware_header *hdr;
+
+	hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
+	size = AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8);
+
+	/* cache window 0: fw */
+	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
+		if (!indirect) {
+			WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+				VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW),
+				(adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo), 0, indirect);
+			WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+				VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH),
+				(adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi), 0, indirect);
+			WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+				VCN, 0, regUVD_VCPU_CACHE_OFFSET0), 0, 0, indirect);
+		} else {
+			WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+				VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW), 0, 0, indirect);
+			WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+				VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH), 0, 0, indirect);
+			WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+				VCN, 0, regUVD_VCPU_CACHE_OFFSET0), 0, 0, indirect);
+		}
+		offset = 0;
+	} else {
+		WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW),
+			lower_32_bits(adev->vcn.inst->gpu_addr), 0, indirect);
+		WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH),
+			upper_32_bits(adev->vcn.inst->gpu_addr), 0, indirect);
+		offset = size;
+		WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_VCPU_CACHE_OFFSET0),
+			0, 0, indirect);
+	}
+
+	if (!indirect)
+		WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_VCPU_CACHE_SIZE0), size, 0, indirect);
+	else
+		WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_VCPU_CACHE_SIZE0), 0, 0, indirect);
+
+	/* cache window 1: stack */
+	if (!indirect) {
+		WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW),
+			lower_32_bits(adev->vcn.inst->gpu_addr + offset), 0, indirect);
+		WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH),
+			upper_32_bits(adev->vcn.inst->gpu_addr + offset), 0, indirect);
+		WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_VCPU_CACHE_OFFSET1), 0, 0, indirect);
+	} else {
+		WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW), 0, 0, indirect);
+		WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH), 0, 0, indirect);
+		WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_VCPU_CACHE_OFFSET1), 0, 0, indirect);
+	}
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_VCPU_CACHE_SIZE1), AMDGPU_VCN_STACK_SIZE, 0, indirect);
+
+	/* cache window 2: context */
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW),
+			lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE), 0, indirect);
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH),
+			upper_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE), 0, indirect);
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_VCPU_CACHE_OFFSET2), 0, 0, indirect);
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_VCPU_CACHE_SIZE2), AMDGPU_VCN_CONTEXT_SIZE, 0, indirect);
+
+	/* non-cache window */
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_LMI_VCPU_NC0_64BIT_BAR_LOW),
+			lower_32_bits(adev->vcn.inst->fw_shared.gpu_addr), 0, indirect);
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_LMI_VCPU_NC0_64BIT_BAR_HIGH),
+			upper_32_bits(adev->vcn.inst->fw_shared.gpu_addr), 0, indirect);
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_VCPU_NONCACHE_OFFSET0), 0, 0, indirect);
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+			VCN, 0, regUVD_VCPU_NONCACHE_SIZE0),
+			AMDGPU_GPU_PAGE_ALIGN(sizeof(struct amdgpu_fw_shared)), 0, indirect);
+
+	/* VCN global tiling registers */
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_GFX8_ADDR_CONFIG), adev->gfx.config.gb_addr_config, 0, indirect);
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_GFX10_ADDR_CONFIG), adev->gfx.config.gb_addr_config, 0, indirect);
+}
+
+/**
+ * vcn_v4_0_disable_static_power_gating - disable VCN static power gating
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Disable static power gating for VCN block
+ */
+static void vcn_v4_0_3_disable_static_power_gating(struct amdgpu_device *adev)
+{
+	uint32_t data = 0;
+
+	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
+		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDS_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDLM_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDTC_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDTA_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDAB_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDTB_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDNA_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDNB_PWR_CONFIG__SHIFT);
+
+		WREG32_SOC15(VCN, 0, regUVD_PGFSM_CONFIG, data);
+		SOC15_WAIT_ON_RREG(VCN, 0, regUVD_PGFSM_STATUS,
+			UVD_PGFSM_STATUS__UVDM_UVDU_UVDLM_PWR_ON_3_0, 0x3F3FFFFF);
+	} else {
+		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDS_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDLM_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDTC_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDTA_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDAB_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDTB_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDNA_PWR_CONFIG__SHIFT
+			| 1 << UVD_PGFSM_CONFIG__UVDNB_PWR_CONFIG__SHIFT);
+
+		WREG32_SOC15(VCN, 0, regUVD_PGFSM_CONFIG, data);
+		SOC15_WAIT_ON_RREG(VCN, 0, regUVD_PGFSM_STATUS, 0,  0x3F3FFFFF);
+	}
+
+	data = RREG32_SOC15(VCN, 0, regUVD_POWER_STATUS);
+	data &= ~0x103;
+	if (adev->pg_flags & AMD_PG_SUPPORT_VCN)
+		data |= UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON |
+			UVD_POWER_STATUS__UVD_PG_EN_MASK;
+
+	WREG32_SOC15(VCN, 0, regUVD_POWER_STATUS, data);
+}
+
+/**
+ * vcn_v4_0_3_enable_static_power_gating - enable VCN static power gating
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Enable static power gating for VCN block
+ */
+static void vcn_v4_0_3_enable_static_power_gating(struct amdgpu_device *adev)
+{
+	uint32_t data;
+
+	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
+		/* Before power off, this indicator has to be turned on */
+		data = RREG32_SOC15(VCN, 0, regUVD_POWER_STATUS);
+		data &= ~UVD_POWER_STATUS__UVD_POWER_STATUS_MASK;
+		data |= UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF;
+		WREG32_SOC15(VCN, 0, regUVD_POWER_STATUS, data);
+
+		data = (2 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDS_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDTC_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDTA_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDLM_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDAB_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDTB_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDNA_PWR_CONFIG__SHIFT
+			| 2 << UVD_PGFSM_CONFIG__UVDNB_PWR_CONFIG__SHIFT);
+		WREG32_SOC15(VCN, 0, regUVD_PGFSM_CONFIG, data);
+
+		data = (2 << UVD_PGFSM_STATUS__UVDM_PWR_STATUS__SHIFT
+			| 2 << UVD_PGFSM_STATUS__UVDS_PWR_STATUS__SHIFT
+			| 2 << UVD_PGFSM_STATUS__UVDF_PWR_STATUS__SHIFT
+			| 2 << UVD_PGFSM_STATUS__UVDTC_PWR_STATUS__SHIFT
+			| 2 << UVD_PGFSM_STATUS__UVDB_PWR_STATUS__SHIFT
+			| 2 << UVD_PGFSM_STATUS__UVDTA_PWR_STATUS__SHIFT
+			| 2 << UVD_PGFSM_STATUS__UVDLM_PWR_STATUS__SHIFT
+			| 2 << UVD_PGFSM_STATUS__UVDTD_PWR_STATUS__SHIFT
+			| 2 << UVD_PGFSM_STATUS__UVDTE_PWR_STATUS__SHIFT
+			| 2 << UVD_PGFSM_STATUS__UVDE_PWR_STATUS__SHIFT
+			| 2 << UVD_PGFSM_STATUS__UVDAB_PWR_STATUS__SHIFT
+			| 2 << UVD_PGFSM_STATUS__UVDTB_PWR_STATUS__SHIFT
+			| 2 << UVD_PGFSM_STATUS__UVDNA_PWR_STATUS__SHIFT
+			| 2 << UVD_PGFSM_STATUS__UVDNB_PWR_STATUS__SHIFT);
+		SOC15_WAIT_ON_RREG(VCN, 0, regUVD_PGFSM_STATUS, data, 0x3F3FFFFF);
+	}
+}
+
+/**
+ * vcn_v4_0_3_disable_clock_gating - disable VCN clock gating
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Disable clock gating for VCN block
+ */
+static void vcn_v4_0_3_disable_clock_gating(struct amdgpu_device *adev)
+{
+	uint32_t data;
+
+	/* VCN disable CGC */
+	data = RREG32_SOC15(VCN, 0, regUVD_CGC_CTRL);
+	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
+		data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
+	else
+		data &= ~UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
+	data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
+	data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
+	WREG32_SOC15(VCN, 0, regUVD_CGC_CTRL, data);
+
+	data = RREG32_SOC15(VCN, 0, regUVD_CGC_GATE);
+	data &= ~(UVD_CGC_GATE__SYS_MASK
+		| UVD_CGC_GATE__MPEG2_MASK
+		| UVD_CGC_GATE__REGS_MASK
+		| UVD_CGC_GATE__RBC_MASK
+		| UVD_CGC_GATE__LMI_MC_MASK
+		| UVD_CGC_GATE__LMI_UMC_MASK
+		| UVD_CGC_GATE__MPC_MASK
+		| UVD_CGC_GATE__LBSI_MASK
+		| UVD_CGC_GATE__LRBBM_MASK
+		| UVD_CGC_GATE__WCB_MASK
+		| UVD_CGC_GATE__VCPU_MASK
+		| UVD_CGC_GATE__MMSCH_MASK);
+
+	WREG32_SOC15(VCN, 0, regUVD_CGC_GATE, data);
+	SOC15_WAIT_ON_RREG(VCN, 0, regUVD_CGC_GATE, 0,  0xFFFFFFFF);
+
+	data = RREG32_SOC15(VCN, 0, regUVD_CGC_CTRL);
+	data &= ~(UVD_CGC_CTRL__SYS_MODE_MASK
+		| UVD_CGC_CTRL__MPEG2_MODE_MASK
+		| UVD_CGC_CTRL__REGS_MODE_MASK
+		| UVD_CGC_CTRL__RBC_MODE_MASK
+		| UVD_CGC_CTRL__LMI_MC_MODE_MASK
+		| UVD_CGC_CTRL__LMI_UMC_MODE_MASK
+		| UVD_CGC_CTRL__MPC_MODE_MASK
+		| UVD_CGC_CTRL__LBSI_MODE_MASK
+		| UVD_CGC_CTRL__LRBBM_MODE_MASK
+		| UVD_CGC_CTRL__WCB_MODE_MASK
+		| UVD_CGC_CTRL__VCPU_MODE_MASK
+		| UVD_CGC_CTRL__MMSCH_MODE_MASK);
+	WREG32_SOC15(VCN, 0, regUVD_CGC_CTRL, data);
+
+	data = RREG32_SOC15(VCN, 0, regUVD_SUVD_CGC_GATE);
+	data |= (UVD_SUVD_CGC_GATE__SRE_MASK
+		| UVD_SUVD_CGC_GATE__SIT_MASK
+		| UVD_SUVD_CGC_GATE__SMP_MASK
+		| UVD_SUVD_CGC_GATE__SCM_MASK
+		| UVD_SUVD_CGC_GATE__SDB_MASK
+		| UVD_SUVD_CGC_GATE__SRE_H264_MASK
+		| UVD_SUVD_CGC_GATE__SRE_HEVC_MASK
+		| UVD_SUVD_CGC_GATE__SIT_H264_MASK
+		| UVD_SUVD_CGC_GATE__SIT_HEVC_MASK
+		| UVD_SUVD_CGC_GATE__SCM_H264_MASK
+		| UVD_SUVD_CGC_GATE__SCM_HEVC_MASK
+		| UVD_SUVD_CGC_GATE__SDB_H264_MASK
+		| UVD_SUVD_CGC_GATE__SDB_HEVC_MASK
+		| UVD_SUVD_CGC_GATE__ENT_MASK
+		| UVD_SUVD_CGC_GATE__SIT_HEVC_DEC_MASK
+		| UVD_SUVD_CGC_GATE__SITE_MASK
+		| UVD_SUVD_CGC_GATE__SRE_VP9_MASK
+		| UVD_SUVD_CGC_GATE__SCM_VP9_MASK
+		| UVD_SUVD_CGC_GATE__SIT_VP9_DEC_MASK
+		| UVD_SUVD_CGC_GATE__SDB_VP9_MASK
+		| UVD_SUVD_CGC_GATE__IME_HEVC_MASK);
+	WREG32_SOC15(VCN, 0, regUVD_SUVD_CGC_GATE, data);
+
+	data = RREG32_SOC15(VCN, 0, regUVD_SUVD_CGC_CTRL);
+	data &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__IME_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
+	WREG32_SOC15(VCN, 0, regUVD_SUVD_CGC_CTRL, data);
+}
+
+/**
+ * vcn_v4_0_3_disable_clock_gating_dpg_mode - disable VCN clock gating dpg mode
+ *
+ * @adev: amdgpu_device pointer
+ * @sram_sel: sram select
+ * @indirect: indirectly write sram
+ *
+ * Disable clock gating for VCN block with dpg mode
+ */
+static void vcn_v4_0_3_disable_clock_gating_dpg_mode(struct amdgpu_device *adev, uint8_t sram_sel,
+				uint8_t indirect)
+{
+	uint32_t reg_data = 0;
+
+	/* enable sw clock gating control */
+	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
+		reg_data = 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
+	else
+		reg_data = 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
+	reg_data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
+	reg_data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
+	reg_data &= ~(UVD_CGC_CTRL__SYS_MODE_MASK |
+		 UVD_CGC_CTRL__MPEG2_MODE_MASK |
+		 UVD_CGC_CTRL__REGS_MODE_MASK |
+		 UVD_CGC_CTRL__RBC_MODE_MASK |
+		 UVD_CGC_CTRL__LMI_MC_MODE_MASK |
+		 UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
+		 UVD_CGC_CTRL__IDCT_MODE_MASK |
+		 UVD_CGC_CTRL__MPRD_MODE_MASK |
+		 UVD_CGC_CTRL__MPC_MODE_MASK |
+		 UVD_CGC_CTRL__LBSI_MODE_MASK |
+		 UVD_CGC_CTRL__LRBBM_MODE_MASK |
+		 UVD_CGC_CTRL__WCB_MODE_MASK |
+		 UVD_CGC_CTRL__VCPU_MODE_MASK);
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_CGC_CTRL), reg_data, sram_sel, indirect);
+
+	/* turn off clock gating */
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_CGC_GATE), 0, sram_sel, indirect);
+
+	/* turn on SUVD clock gating */
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_SUVD_CGC_GATE), 1, sram_sel, indirect);
+
+	/* turn on sw mode in UVD_SUVD_CGC_CTRL */
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_SUVD_CGC_CTRL), 0, sram_sel, indirect);
+}
+
+/**
+ * vcn_v4_0_enable_clock_gating - enable VCN clock gating
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Enable clock gating for VCN block
+ */
+static void vcn_v4_0_3_enable_clock_gating(struct amdgpu_device *adev)
+{
+	uint32_t data;
+
+	/* enable VCN CGC */
+	data = RREG32_SOC15(VCN, 0, regUVD_CGC_CTRL);
+	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
+		data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
+	else
+		data |= 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
+	data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
+	data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
+	WREG32_SOC15(VCN, 0, regUVD_CGC_CTRL, data);
+
+	data = RREG32_SOC15(VCN, 0, regUVD_CGC_CTRL);
+	data |= (UVD_CGC_CTRL__SYS_MODE_MASK
+		| UVD_CGC_CTRL__MPEG2_MODE_MASK
+		| UVD_CGC_CTRL__REGS_MODE_MASK
+		| UVD_CGC_CTRL__RBC_MODE_MASK
+		| UVD_CGC_CTRL__LMI_MC_MODE_MASK
+		| UVD_CGC_CTRL__LMI_UMC_MODE_MASK
+		| UVD_CGC_CTRL__MPC_MODE_MASK
+		| UVD_CGC_CTRL__LBSI_MODE_MASK
+		| UVD_CGC_CTRL__LRBBM_MODE_MASK
+		| UVD_CGC_CTRL__WCB_MODE_MASK
+		| UVD_CGC_CTRL__VCPU_MODE_MASK);
+	WREG32_SOC15(VCN, 0, regUVD_CGC_CTRL, data);
+
+	data = RREG32_SOC15(VCN, 0, regUVD_SUVD_CGC_CTRL);
+	data |= (UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__IME_MODE_MASK
+		| UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
+	WREG32_SOC15(VCN, 0, regUVD_SUVD_CGC_CTRL, data);
+}
+
+/**
+ * vcn_v4_0_3_start_dpg_mode - VCN start with dpg mode
+ *
+ * @adev: amdgpu_device pointer
+ * @indirect: indirectly write sram
+ *
+ * Start VCN block with dpg mode
+ */
+static int vcn_v4_0_3_start_dpg_mode(struct amdgpu_device *adev, bool indirect)
+{
+	volatile struct amdgpu_fw_shared *fw_shared = adev->vcn.inst->fw_shared.cpu_addr;
+	struct amdgpu_ring *ring;
+	uint32_t tmp;
+
+	/* disable register anti-hang mechanism */
+	WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_POWER_STATUS), 1,
+		~UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
+	/* enable dynamic power gating mode */
+	tmp = RREG32_SOC15(VCN, 0, regUVD_POWER_STATUS);
+	tmp |= UVD_POWER_STATUS__UVD_PG_MODE_MASK;
+	tmp |= UVD_POWER_STATUS__UVD_PG_EN_MASK;
+	WREG32_SOC15(VCN, 0, regUVD_POWER_STATUS, tmp);
+
+	if (indirect)
+		adev->vcn.inst->dpg_sram_curr_addr = (uint32_t *)adev->vcn.inst->dpg_sram_cpu_addr;
+
+	/* enable clock gating */
+	vcn_v4_0_3_disable_clock_gating_dpg_mode(adev, 0, indirect);
+
+	/* enable VCPU clock */
+	tmp = (0xFF << UVD_VCPU_CNTL__PRB_TIMEOUT_VAL__SHIFT);
+	tmp |= UVD_VCPU_CNTL__CLK_EN_MASK;
+	tmp |= UVD_VCPU_CNTL__BLK_RST_MASK;
+
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_VCPU_CNTL), tmp, 0, indirect);
+
+	/* disable master interrupt */
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_MASTINT_EN), 0, 0, indirect);
+
+	/* setup regUVD_LMI_CTRL */
+	tmp = (UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
+		UVD_LMI_CTRL__REQ_MODE_MASK |
+		UVD_LMI_CTRL__CRC_RESET_MASK |
+		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
+		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
+		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
+		(8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
+		0x00100000L);
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_LMI_CTRL), tmp, 0, indirect);
+
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_MPC_CNTL),
+		0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT, 0, indirect);
+
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_MPC_SET_MUXA0),
+		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
+		 (0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
+		 (0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
+		 (0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)), 0, indirect);
+
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_MPC_SET_MUXB0),
+		 ((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
+		 (0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
+		 (0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
+		 (0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)), 0, indirect);
+
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_MPC_SET_MUX),
+		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
+		 (0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
+		 (0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)), 0, indirect);
+
+	vcn_v4_0_3_mc_resume_dpg_mode(adev, indirect);
+
+	tmp = (0xFF << UVD_VCPU_CNTL__PRB_TIMEOUT_VAL__SHIFT);
+	tmp |= UVD_VCPU_CNTL__CLK_EN_MASK;
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_VCPU_CNTL), tmp, 0, indirect);
+
+	/* enable LMI MC and UMC channels */
+	tmp = 0x1f << UVD_LMI_CTRL2__RE_OFLD_MIF_WR_REQ_NUM__SHIFT;
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_LMI_CTRL2), tmp, 0, indirect);
+
+	/* enable master interrupt */
+	WREG32_SOC15_DPG_MODE(0, SOC15_DPG_MODE_OFFSET(
+		VCN, 0, regUVD_MASTINT_EN),
+		UVD_MASTINT_EN__VCPU_EN_MASK, 0, indirect);
+
+	if (indirect)
+		psp_update_vcn_sram(adev, 0, adev->vcn.inst->dpg_sram_gpu_addr,
+			(uint32_t)((uintptr_t)adev->vcn.inst->dpg_sram_curr_addr -
+				(uintptr_t)adev->vcn.inst->dpg_sram_cpu_addr));
+
+	ring = &adev->vcn.inst->ring_dec;
+	fw_shared->multi_queue.decode_queue_mode |= cpu_to_le32(FW_QUEUE_RING_RESET);
+
+	/* program the RB_BASE for ring buffer */
+	WREG32_SOC15(VCN, 0, regUVD_RB_BASE_LO4,
+		lower_32_bits(ring->gpu_addr));
+	WREG32_SOC15(VCN, 0, regUVD_RB_BASE_HI4,
+		upper_32_bits(ring->gpu_addr));
+
+	WREG32_SOC15(VCN, 0, regUVD_RB_SIZE4, ring->ring_size / sizeof(uint32_t));
+
+	/* resetting ring, fw should not check RB ring */
+	tmp = RREG32_SOC15(VCN, 0, regVCN_RB_ENABLE);
+	tmp &= ~(VCN_RB_ENABLE__RB4_EN_MASK);
+	WREG32_SOC15(VCN, 0, regVCN_RB_ENABLE, tmp);
+
+	/* Initialize the ring buffer's read and write pointers */
+	WREG32_SOC15(VCN, 0, regUVD_RB_RPTR4, 0);
+	WREG32_SOC15(VCN, 0, regUVD_RB_WPTR4, 0);
+	ring->wptr = RREG32_SOC15(VCN, 0, regUVD_RB_WPTR4);
+
+	tmp = RREG32_SOC15(VCN, 0, regVCN_RB_ENABLE);
+	tmp |= VCN_RB_ENABLE__RB4_EN_MASK;
+	WREG32_SOC15(VCN, 0, regVCN_RB_ENABLE, tmp);
+
+	WREG32_SOC15(VCN, 0, regUVD_SCRATCH2, 0);
+
+	/* Reset FW shared memory RBC WPTR/RPTR */
+	fw_shared->rb.rptr = 0;
+	fw_shared->rb.wptr = lower_32_bits(ring->wptr);
+
+	/*resetting done, fw can check RB ring */
+	fw_shared->multi_queue.decode_queue_mode &= cpu_to_le32(~FW_QUEUE_RING_RESET);
+
+	return 0;
+}
+
+/**
+ * vcn_v4_0_3_start - VCN start
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Start VCN block
+ */
+static int vcn_v4_0_3_start(struct amdgpu_device *adev)
+{
+	volatile struct amdgpu_fw_shared *fw_shared;
+	struct amdgpu_ring *ring;
+	uint32_t tmp;
+	int j, k, r;
+
+	if (adev->pm.dpm_enabled)
+		amdgpu_dpm_enable_uvd(adev, true);
+
+	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
+		return vcn_v4_0_3_start_dpg_mode(adev, adev->vcn.indirect_sram);
+
+	/* disable VCN power gating */
+	vcn_v4_0_3_disable_static_power_gating(adev);
+
+	/* set VCN status busy */
+	tmp = RREG32_SOC15(VCN, 0, regUVD_STATUS) | UVD_STATUS__UVD_BUSY;
+	WREG32_SOC15(VCN, 0, regUVD_STATUS, tmp);
+
+	/*SW clock gating */
+	vcn_v4_0_3_disable_clock_gating(adev);
+
+	/* enable VCPU clock */
+	WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_VCPU_CNTL),
+		UVD_VCPU_CNTL__CLK_EN_MASK, ~UVD_VCPU_CNTL__CLK_EN_MASK);
+
+	/* disable master interrupt */
+	WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_MASTINT_EN), 0,
+		~UVD_MASTINT_EN__VCPU_EN_MASK);
+
+	/* enable LMI MC and UMC channels */
+	WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_LMI_CTRL2), 0,
+		~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
+
+	tmp = RREG32_SOC15(VCN, 0, regUVD_SOFT_RESET);
+	tmp &= ~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK;
+	tmp &= ~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK;
+	WREG32_SOC15(VCN, 0, regUVD_SOFT_RESET, tmp);
+
+	/* setup regUVD_LMI_CTRL */
+	tmp = RREG32_SOC15(VCN, 0, regUVD_LMI_CTRL);
+	WREG32_SOC15(VCN, 0, regUVD_LMI_CTRL, tmp |
+		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
+		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
+		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
+		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK);
+
+	/* setup regUVD_MPC_CNTL */
+	tmp = RREG32_SOC15(VCN, 0, regUVD_MPC_CNTL);
+	tmp &= ~UVD_MPC_CNTL__REPLACEMENT_MODE_MASK;
+	tmp |= 0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT;
+	WREG32_SOC15(VCN, 0, regUVD_MPC_CNTL, tmp);
+
+	/* setup UVD_MPC_SET_MUXA0 */
+	WREG32_SOC15(VCN, 0, regUVD_MPC_SET_MUXA0,
+		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
+		(0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
+		(0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
+		(0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)));
+
+	/* setup UVD_MPC_SET_MUXB0 */
+	WREG32_SOC15(VCN, 0, regUVD_MPC_SET_MUXB0,
+		((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
+		(0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
+		(0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
+		(0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)));
+
+	/* setup UVD_MPC_SET_MUX */
+	WREG32_SOC15(VCN, 0, regUVD_MPC_SET_MUX,
+		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
+		(0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
+		(0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)));
+
+	vcn_v4_0_3_mc_resume(adev);
+
+	/* VCN global tiling registers */
+	WREG32_SOC15(VCN, 0, regUVD_GFX8_ADDR_CONFIG,
+		adev->gfx.config.gb_addr_config);
+	WREG32_SOC15(VCN, 0, regUVD_GFX10_ADDR_CONFIG,
+		adev->gfx.config.gb_addr_config);
+
+	/* unblock VCPU register access */
+	WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_RB_ARB_CTRL), 0,
+		~UVD_RB_ARB_CTRL__VCPU_DIS_MASK);
+
+	/* release VCPU reset to boot */
+	WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_VCPU_CNTL), 0,
+		~UVD_VCPU_CNTL__BLK_RST_MASK);
+
+	for (j = 0; j < 10; ++j) {
+		uint32_t status;
+
+		for (k = 0; k < 100; ++k) {
+			status = RREG32_SOC15(VCN, 0, regUVD_STATUS);
+			if (status & 2)
+				break;
+			if (amdgpu_emu_mode == 1)
+				msleep(500);
+			else
+				mdelay(10);
+		}
+		r = 0;
+		if (status & 2)
+			break;
+
+		DRM_DEV_ERROR(adev->dev,
+			"VCN decode not responding, trying to reset the VCPU!!!\n");
+		WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_VCPU_CNTL),
+			UVD_VCPU_CNTL__BLK_RST_MASK,
+			~UVD_VCPU_CNTL__BLK_RST_MASK);
+		mdelay(10);
+		WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_VCPU_CNTL), 0,
+			~UVD_VCPU_CNTL__BLK_RST_MASK);
+
+		mdelay(10);
+		r = -1;
+	}
+
+	if (r) {
+		DRM_DEV_ERROR(adev->dev, "VCN decode not responding, giving up!!!\n");
+		return r;
+	}
+
+	/* enable master interrupt */
+	WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_MASTINT_EN),
+		UVD_MASTINT_EN__VCPU_EN_MASK,
+		~UVD_MASTINT_EN__VCPU_EN_MASK);
+
+	/* clear the busy bit of VCN_STATUS */
+	WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_STATUS), 0,
+		~(2 << UVD_STATUS__VCPU_REPORT__SHIFT));
+
+	ring = &adev->vcn.inst->ring_dec;
+
+	fw_shared = adev->vcn.inst->fw_shared.cpu_addr;
+	fw_shared->multi_queue.decode_queue_mode |= cpu_to_le32(FW_QUEUE_RING_RESET);
+
+	/* program the RB_BASE for ring buffer */
+	WREG32_SOC15(VCN, 0, regUVD_RB_BASE_LO4,
+		lower_32_bits(ring->gpu_addr));
+	WREG32_SOC15(VCN, 0, regUVD_RB_BASE_HI4,
+		upper_32_bits(ring->gpu_addr));
+
+	WREG32_SOC15(VCN, 0, regUVD_RB_SIZE4, ring->ring_size / sizeof(uint32_t));
+
+	/* resetting ring, fw should not check RB ring */
+	tmp = RREG32_SOC15(VCN, 0, regVCN_RB_ENABLE);
+	tmp &= ~(VCN_RB_ENABLE__RB4_EN_MASK);
+	WREG32_SOC15(VCN, 0, regVCN_RB_ENABLE, tmp);
+
+	/* Initialize the ring buffer's read and write pointers */
+	WREG32_SOC15(VCN, 0, regUVD_RB_RPTR4, 0);
+	WREG32_SOC15(VCN, 0, regUVD_RB_WPTR4, 0);
+
+	tmp = RREG32_SOC15(VCN, 0, regVCN_RB_ENABLE);
+	tmp |= VCN_RB_ENABLE__RB4_EN_MASK;
+	WREG32_SOC15(VCN, 0, regVCN_RB_ENABLE, tmp);
+
+	ring->wptr = RREG32_SOC15(VCN, 0, regUVD_RB_WPTR4);
+	fw_shared->rb.wptr = cpu_to_le32(lower_32_bits(ring->wptr));
+	fw_shared->multi_queue.decode_queue_mode &= cpu_to_le32(~FW_QUEUE_RING_RESET);
+
+	return 0;
+}
+
+/**
+ * vcn_v4_0_3_stop_dpg_mode - VCN stop with dpg mode
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Stop VCN block with dpg mode
+ */
+static int vcn_v4_0_3_stop_dpg_mode(struct amdgpu_device *adev)
+{
+	uint32_t tmp;
+
+	/* Wait for power status to be 1 */
+	SOC15_WAIT_ON_RREG(VCN, 0, regUVD_POWER_STATUS, 1,
+		UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
+
+	/* wait for read ptr to be equal to write ptr */
+	tmp = RREG32_SOC15(VCN, 0, regUVD_RB_WPTR);
+	SOC15_WAIT_ON_RREG(VCN, 0, regUVD_RB_RPTR, tmp, 0xFFFFFFFF);
+
+	tmp = RREG32_SOC15(VCN, 0, regUVD_RB_WPTR2);
+	SOC15_WAIT_ON_RREG(VCN, 0, regUVD_RB_RPTR2, tmp, 0xFFFFFFFF);
+
+	tmp = RREG32_SOC15(VCN, 0, regUVD_RB_WPTR4);
+	SOC15_WAIT_ON_RREG(VCN, 0, regUVD_RB_RPTR4, tmp, 0xFFFFFFFF);
+
+	SOC15_WAIT_ON_RREG(VCN, 0, regUVD_POWER_STATUS, 1,
+		UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
+
+	/* disable dynamic power gating mode */
+	WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_POWER_STATUS), 0,
+		~UVD_POWER_STATUS__UVD_PG_MODE_MASK);
+	return 0;
+}
+
+/**
+ * vcn_v4_0_3_stop - VCN stop
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Stop VCN block
+ */
+static int vcn_v4_0_3_stop(struct amdgpu_device *adev)
+{
+	uint32_t tmp;
+	int r = 0;
+
+	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
+		r = vcn_v4_0_3_stop_dpg_mode(adev);
+		goto Done;
+	}
+
+	/* wait for vcn idle */
+	r = SOC15_WAIT_ON_RREG(VCN, 0, regUVD_STATUS, UVD_STATUS__IDLE, 0x7);
+	if (r)
+		return r;
+
+	tmp = UVD_LMI_STATUS__VCPU_LMI_WRITE_CLEAN_MASK |
+		UVD_LMI_STATUS__READ_CLEAN_MASK |
+		UVD_LMI_STATUS__WRITE_CLEAN_MASK |
+		UVD_LMI_STATUS__WRITE_CLEAN_RAW_MASK;
+	r = SOC15_WAIT_ON_RREG(VCN, 0, regUVD_LMI_STATUS, tmp, tmp);
+	if (r)
+		return r;
+
+	/* stall UMC channel */
+	tmp = RREG32_SOC15(VCN, 0, regUVD_LMI_CTRL2);
+	tmp |= UVD_LMI_CTRL2__STALL_ARB_UMC_MASK;
+	WREG32_SOC15(VCN, 0, regUVD_LMI_CTRL2, tmp);
+	tmp = UVD_LMI_STATUS__UMC_READ_CLEAN_RAW_MASK|
+		UVD_LMI_STATUS__UMC_WRITE_CLEAN_RAW_MASK;
+	r = SOC15_WAIT_ON_RREG(VCN, 0, regUVD_LMI_STATUS, tmp, tmp);
+	if (r)
+		return r;
+
+	/* Unblock VCPU Register access */
+	WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_RB_ARB_CTRL),
+		UVD_RB_ARB_CTRL__VCPU_DIS_MASK,
+		~UVD_RB_ARB_CTRL__VCPU_DIS_MASK);
+
+	/* release VCPU reset to boot */
+	WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_VCPU_CNTL),
+		UVD_VCPU_CNTL__BLK_RST_MASK,
+		~UVD_VCPU_CNTL__BLK_RST_MASK);
+
+	/* disable VCPU clock */
+	WREG32_P(SOC15_REG_OFFSET(VCN, 0, regUVD_VCPU_CNTL), 0,
+		~(UVD_VCPU_CNTL__CLK_EN_MASK));
+
+	/* reset LMI UMC/LMI/VCPU */
+	tmp = RREG32_SOC15(VCN, 0, regUVD_SOFT_RESET);
+	tmp |= UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK;
+	WREG32_SOC15(VCN, 0, regUVD_SOFT_RESET, tmp);
+
+	tmp = RREG32_SOC15(VCN, 0, regUVD_SOFT_RESET);
+	tmp |= UVD_SOFT_RESET__LMI_SOFT_RESET_MASK;
+	WREG32_SOC15(VCN, 0, regUVD_SOFT_RESET, tmp);
+
+	tmp = RREG32_SOC15(VCN, 0, regUVD_VCPU_CNTL);
+	tmp |= UVD_VCPU_CNTL__BLK_RST_MASK;
+	WREG32_SOC15(VCN, 0, regUVD_SOFT_RESET, tmp);
+
+	/* clear VCN status */
+	WREG32_SOC15(VCN, 0, regUVD_STATUS, 0);
+
+	/* apply HW clock gating */
+	vcn_v4_0_3_enable_clock_gating(adev);
+
+	/* enable VCN power gating */
+	vcn_v4_0_3_enable_static_power_gating(adev);
+
+Done:
+	if (adev->pm.dpm_enabled)
+		amdgpu_dpm_enable_uvd(adev, false);
+
+	return 0;
+}
+
+/**
+ * vcn_v4_0_3_pause_dpg_mode - VCN pause with dpg mode
+ *
+ * @adev: amdgpu_device pointer
+ * @inst_idx: instance number index
+ * @new_state: pause state
+ *
+ * Pause dpg mode for VCN block
+ */
+static int vcn_v4_0_3_pause_dpg_mode(struct amdgpu_device *adev, int inst_idx,
+				struct dpg_pause_state *new_state)
+{
+
+	return 0;
+}
+
+/**
+ * vcn_v4_0_3_dec_ring_get_rptr - get read pointer
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Returns the current hardware read pointer
+ */
+static uint64_t vcn_v4_0_3_dec_ring_get_rptr(struct amdgpu_ring *ring)
+{
+	struct amdgpu_device *adev = ring->adev;
+
+	return RREG32_SOC15(VCN, ring->me, regUVD_RB_RPTR4);
+}
+
+/**
+ * vcn_v4_0_3_dec_ring_get_wptr - get write pointer
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Returns the current hardware write pointer
+ */
+static uint64_t vcn_v4_0_3_dec_ring_get_wptr(struct amdgpu_ring *ring)
+{
+	struct amdgpu_device *adev = ring->adev;
+
+	if (ring->use_doorbell)
+		return adev->wb.wb[ring->wptr_offs];
+	else
+		return RREG32_SOC15(VCN, ring->me, regUVD_RB_WPTR4);
+}
+
+/**
+ * vcn_v4_0_3_dec_ring_set_wptr - set write pointer
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Commits the write pointer to the hardware
+ */
+static void vcn_v4_0_3_dec_ring_set_wptr(struct amdgpu_ring *ring)
+{
+	struct amdgpu_device *adev = ring->adev;
+	volatile struct amdgpu_fw_shared *fw_shared;
+
+	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
+		/*whenever update RBC_RB_WPTR, we save the wptr in shared rb.wptr and scratch2 */
+		fw_shared = adev->vcn.inst->fw_shared.cpu_addr;
+		fw_shared->rb.wptr = lower_32_bits(ring->wptr);
+		WREG32_SOC15(VCN, ring->me, regUVD_SCRATCH2,
+			lower_32_bits(ring->wptr));
+	}
+
+	if (ring->use_doorbell) {
+		adev->wb.wb[ring->wptr_offs] = lower_32_bits(ring->wptr);
+		WDOORBELL32(ring->doorbell_index, lower_32_bits(ring->wptr));
+	} else {
+		WREG32_SOC15(VCN, ring->me, regUVD_RB_WPTR4, lower_32_bits(ring->wptr));
+	}
+}
+
+static const struct amdgpu_ring_funcs vcn_v4_0_3_dec_sw_ring_vm_funcs = {
+	.type = AMDGPU_RING_TYPE_VCN_DEC,
+	.align_mask = 0x3f,
+	.nop = VCN_DEC_SW_CMD_NO_OP,
+	.get_rptr = vcn_v4_0_3_dec_ring_get_rptr,
+	.get_wptr = vcn_v4_0_3_dec_ring_get_wptr,
+	.set_wptr = vcn_v4_0_3_dec_ring_set_wptr,
+	.emit_frame_size =
+		SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
+		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 4 +
+		VCN_SW_RING_EMIT_FRAME_SIZE,
+	.emit_ib_size = 5, /* vcn_dec_sw_ring_emit_ib */
+	.emit_ib = vcn_dec_sw_ring_emit_ib,
+	.emit_fence = vcn_dec_sw_ring_emit_fence,
+	.emit_vm_flush = vcn_dec_sw_ring_emit_vm_flush,
+	.test_ring = amdgpu_vcn_dec_sw_ring_test_ring,
+	.test_ib = amdgpu_vcn_dec_sw_ring_test_ib,
+	.insert_nop = amdgpu_ring_insert_nop,
+	.insert_end = vcn_dec_sw_ring_insert_end,
+	.pad_ib = amdgpu_ring_generic_pad_ib,
+	.begin_use = amdgpu_vcn_ring_begin_use,
+	.end_use = amdgpu_vcn_ring_end_use,
+	.emit_wreg = vcn_dec_sw_ring_emit_wreg,
+	.emit_reg_wait = vcn_dec_sw_ring_emit_reg_wait,
+	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
+};
+
+/**
+ * vcn_v4_0_3_set_dec_ring_funcs - set dec ring functions
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Set decode ring functions
+ */
+static void vcn_v4_0_3_set_dec_ring_funcs(struct amdgpu_device *adev)
+{
+	adev->vcn.inst->ring_dec.funcs = &vcn_v4_0_3_dec_sw_ring_vm_funcs;
+	adev->vcn.inst->ring_dec.me = 0;
+	DRM_DEV_INFO(adev->dev, "VCN decode(Software Ring) is enabled in VM mode\n");
+}
+
+/**
+ * vcn_v4_0_3_is_idle - check VCN block is idle
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * Check whether VCN block is idle
+ */
+static bool vcn_v4_0_3_is_idle(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	return (RREG32_SOC15(VCN, 0, regUVD_STATUS) == UVD_STATUS__IDLE);
+}
+
+/**
+ * vcn_v4_0_3_wait_for_idle - wait for VCN block idle
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * Wait for VCN block idle
+ */
+static int vcn_v4_0_3_wait_for_idle(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	return SOC15_WAIT_ON_RREG(VCN, 0, regUVD_STATUS, UVD_STATUS__IDLE,
+			UVD_STATUS__IDLE);
+}
+
+/**
+ * vcn_v4_0_3_set_clockgating_state - set VCN block clockgating state
+ *
+ * @handle: amdgpu_device pointer
+ * @state: clock gating state
+ *
+ * Set VCN block clockgating state
+ */
+static int vcn_v4_0_3_set_clockgating_state(void *handle,
+					  enum amd_clockgating_state state)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	bool enable = (state == AMD_CG_STATE_GATE) ? true : false;
+
+	if (enable) {
+		if (RREG32_SOC15(VCN, 0, regUVD_STATUS) != UVD_STATUS__IDLE)
+			return -EBUSY;
+		vcn_v4_0_3_enable_clock_gating(adev);
+	} else {
+		vcn_v4_0_3_disable_clock_gating(adev);
+	}
+
+	return 0;
+}
+
+/**
+ * vcn_v4_0_3_set_powergating_state - set VCN block powergating state
+ *
+ * @handle: amdgpu_device pointer
+ * @state: power gating state
+ *
+ * Set VCN block powergating state
+ */
+static int vcn_v4_0_3_set_powergating_state(void *handle,
+					  enum amd_powergating_state state)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	int ret;
+
+	if (state == adev->vcn.cur_state)
+		return 0;
+
+	if (state == AMD_PG_STATE_GATE)
+		ret = vcn_v4_0_3_stop(adev);
+	else
+		ret = vcn_v4_0_3_start(adev);
+
+	if (!ret)
+		adev->vcn.cur_state = state;
+
+	return ret;
+}
+
+/**
+ * vcn_v4_0_3_set_interrupt_state - set VCN block interrupt state
+ *
+ * @adev: amdgpu_device pointer
+ * @source: interrupt sources
+ * @type: interrupt types
+ * @state: interrupt states
+ *
+ * Set VCN block interrupt state
+ */
+static int vcn_v4_0_3_set_interrupt_state(struct amdgpu_device *adev,
+					struct amdgpu_irq_src *source,
+					unsigned int type,
+					enum amdgpu_interrupt_state state)
+{
+	return 0;
+}
+
+/**
+ * vcn_v4_0_process_interrupt - process VCN block interrupt
+ *
+ * @adev: amdgpu_device pointer
+ * @source: interrupt sources
+ * @entry: interrupt entry from clients and sources
+ *
+ * Process VCN block interrupt
+ */
+static int vcn_v4_0_3_process_interrupt(struct amdgpu_device *adev,
+				      struct amdgpu_irq_src *source,
+				      struct amdgpu_iv_entry *entry)
+{
+	DRM_DEV_DEBUG(adev->dev, "IH: VCN TRAP\n");
+
+	switch (entry->src_id) {
+	case VCN_2_0__SRCID__UVD_SYSTEM_MESSAGE_INTERRUPT:
+		amdgpu_fence_process(&adev->vcn.inst->ring_dec);
+		break;
+	default:
+		DRM_DEV_ERROR(adev->dev, "Unhandled interrupt: %d %d\n",
+			  entry->src_id, entry->src_data[0]);
+		break;
+	}
+
+	return 0;
+}
+
+static const struct amdgpu_irq_src_funcs vcn_v4_0_3_irq_funcs = {
+	.set = vcn_v4_0_3_set_interrupt_state,
+	.process = vcn_v4_0_3_process_interrupt,
+};
+
+/**
+ * vcn_v4_0_3_set_irq_funcs - set VCN block interrupt irq functions
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Set VCN block interrupt irq functions
+ */
+static void vcn_v4_0_3_set_irq_funcs(struct amdgpu_device *adev)
+{
+	int i;
+
+	for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
+		if (adev->vcn.harvest_config & (1 << i))
+			continue;
+
+		adev->vcn.inst->irq.num_types = 1;
+		adev->vcn.inst->irq.funcs = &vcn_v4_0_3_irq_funcs;
+	}
+}
+
+static const struct amd_ip_funcs vcn_v4_0_3_ip_funcs = {
+	.name = "vcn_v4_0_3",
+	.early_init = vcn_v4_0_3_early_init,
+	.late_init = NULL,
+	.sw_init = vcn_v4_0_3_sw_init,
+	.sw_fini = vcn_v4_0_3_sw_fini,
+	.hw_init = vcn_v4_0_3_hw_init,
+	.hw_fini = vcn_v4_0_3_hw_fini,
+	.suspend = vcn_v4_0_3_suspend,
+	.resume = vcn_v4_0_3_resume,
+	.is_idle = vcn_v4_0_3_is_idle,
+	.wait_for_idle = vcn_v4_0_3_wait_for_idle,
+	.check_soft_reset = NULL,
+	.pre_soft_reset = NULL,
+	.soft_reset = NULL,
+	.post_soft_reset = NULL,
+	.set_clockgating_state = vcn_v4_0_3_set_clockgating_state,
+	.set_powergating_state = vcn_v4_0_3_set_powergating_state,
+};
+
+const struct amdgpu_ip_block_version vcn_v4_0_3_ip_block = {
+	.type = AMD_IP_BLOCK_TYPE_VCN,
+	.major = 4,
+	.minor = 0,
+	.rev = 3,
+	.funcs = &vcn_v4_0_3_ip_funcs,
+};

drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.h

···
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __VCN_V4_0_3_H__
+#define __VCN_V4_0_3_H__
+
+extern const struct amdgpu_ip_block_version vcn_v4_0_3_ip_block;
+
+#endif /* __VCN_V4_0_3_H__ */