drm/amdgpu: add initial uvd 7.0 support for vega10

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/Makefile

@@ -78,7 +78,8 @@ amdgpu-y += \
 amdgpu-y += \
 	amdgpu_uvd.o \
 	uvd_v5_0.o \
-	uvd_v6_0.o
+	uvd_v6_0.o \
+	uvd_v7_0.o
 
 # add VCE block
 amdgpu-y += \

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

@@ -67,6 +67,14 @@
 #define FIRMWARE_POLARIS11	"amdgpu/polaris11_uvd.bin"
 #define FIRMWARE_POLARIS12	"amdgpu/polaris12_uvd.bin"
 
+#define FIRMWARE_VEGA10		"amdgpu/vega10_uvd.bin"
+
+#define mmUVD_GPCOM_VCPU_DATA0_VEGA10 (0x03c4 + 0x7e00)
+#define mmUVD_GPCOM_VCPU_DATA1_VEGA10 (0x03c5 + 0x7e00)
+#define mmUVD_GPCOM_VCPU_CMD_VEGA10 (0x03c3 + 0x7e00)
+#define mmUVD_NO_OP_VEGA10 (0x03ff + 0x7e00)
+#define mmUVD_ENGINE_CNTL_VEGA10 (0x03c6 + 0x7e00)
+
 /**
  * amdgpu_uvd_cs_ctx - Command submission parser context
  *
@@ -101,6 +109,8 @@ MODULE_FIRMWARE(FIRMWARE_POLARIS10);
 MODULE_FIRMWARE(FIRMWARE_POLARIS11);
 MODULE_FIRMWARE(FIRMWARE_POLARIS12);
 
+MODULE_FIRMWARE(FIRMWARE_VEGA10);
+
 static void amdgpu_uvd_idle_work_handler(struct work_struct *work);
 
 int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
@@ -151,6 +161,9 @@ int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
 	case CHIP_POLARIS11:
 		fw_name = FIRMWARE_POLARIS11;
 		break;
+	case CHIP_VEGA10:
+		fw_name = FIRMWARE_VEGA10;
+		break;
 	case CHIP_POLARIS12:
 		fw_name = FIRMWARE_POLARIS12;
 		break;
@@ -203,9 +216,11 @@ int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
 		DRM_ERROR("POLARIS10/11 UVD firmware version %hu.%hu is too old.\n",
 			  version_major, version_minor);
 
-	bo_size = AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8)
-		  +  AMDGPU_UVD_STACK_SIZE + AMDGPU_UVD_HEAP_SIZE
+	bo_size = AMDGPU_UVD_STACK_SIZE + AMDGPU_UVD_HEAP_SIZE
 		  +  AMDGPU_UVD_SESSION_SIZE * adev->uvd.max_handles;
+	if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP)
+		bo_size += AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8);
+
 	r = amdgpu_bo_create_kernel(adev, bo_size, PAGE_SIZE,
 				    AMDGPU_GEM_DOMAIN_VRAM, &adev->uvd.vcpu_bo,
 				    &adev->uvd.gpu_addr, &adev->uvd.cpu_addr);
@@ -319,11 +334,13 @@ int amdgpu_uvd_resume(struct amdgpu_device *adev)
 		unsigned offset;
 
 		hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
-		offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
-		memcpy_toio(adev->uvd.cpu_addr, adev->uvd.fw->data + offset,
-			    le32_to_cpu(hdr->ucode_size_bytes));
-		size -= le32_to_cpu(hdr->ucode_size_bytes);
-		ptr += le32_to_cpu(hdr->ucode_size_bytes);
+		if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
+			offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
+			memcpy_toio(adev->uvd.cpu_addr, adev->uvd.fw->data + offset,
+				    le32_to_cpu(hdr->ucode_size_bytes));
+			size -= le32_to_cpu(hdr->ucode_size_bytes);
+			ptr += le32_to_cpu(hdr->ucode_size_bytes);
+		}
 		memset_io(ptr, 0, size);
 	}
 
@@ -936,6 +953,7 @@ static int amdgpu_uvd_send_msg(struct amdgpu_ring *ring, struct amdgpu_bo *bo,
 	struct dma_fence *f = NULL;
 	struct amdgpu_device *adev = ring->adev;
 	uint64_t addr;
+	uint32_t data[4];
 	int i, r;
 
 	memset(&tv, 0, sizeof(tv));
@@ -961,16 +979,28 @@ static int amdgpu_uvd_send_msg(struct amdgpu_ring *ring, struct amdgpu_bo *bo,
 	if (r)
 		goto err;
 
+	if (adev->asic_type >= CHIP_VEGA10) {
+		data[0] = PACKET0(mmUVD_GPCOM_VCPU_DATA0_VEGA10, 0);
+		data[1] = PACKET0(mmUVD_GPCOM_VCPU_DATA1_VEGA10, 0);
+		data[2] = PACKET0(mmUVD_GPCOM_VCPU_CMD_VEGA10, 0);
+		data[3] = PACKET0(mmUVD_NO_OP_VEGA10, 0);
+	} else {
+		data[0] = PACKET0(mmUVD_GPCOM_VCPU_DATA0, 0);
+		data[1] = PACKET0(mmUVD_GPCOM_VCPU_DATA1, 0);
+		data[2] = PACKET0(mmUVD_GPCOM_VCPU_CMD, 0);
+		data[3] = PACKET0(mmUVD_NO_OP, 0);
+	}
+
 	ib = &job->ibs[0];
 	addr = amdgpu_bo_gpu_offset(bo);
-	ib->ptr[0] = PACKET0(mmUVD_GPCOM_VCPU_DATA0, 0);
+	ib->ptr[0] = data[0];
 	ib->ptr[1] = addr;
-	ib->ptr[2] = PACKET0(mmUVD_GPCOM_VCPU_DATA1, 0);
+	ib->ptr[2] = data[1];
 	ib->ptr[3] = addr >> 32;
-	ib->ptr[4] = PACKET0(mmUVD_GPCOM_VCPU_CMD, 0);
+	ib->ptr[4] = data[2];
 	ib->ptr[5] = 0;
 	for (i = 6; i < 16; i += 2) {
-		ib->ptr[i] = PACKET0(mmUVD_NO_OP, 0);
+		ib->ptr[i] = data[3];
 		ib->ptr[i+1] = 0;
 	}
 	ib->length_dw = 16;

drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c

+/*
+ * Copyright 2016 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include <linux/firmware.h>
+#include <drm/drmP.h>
+#include "amdgpu.h"
+#include "amdgpu_uvd.h"
+#include "soc15d.h"
+#include "soc15_common.h"
+
+#include "vega10/soc15ip.h"
+#include "vega10/UVD/uvd_7_0_offset.h"
+#include "vega10/UVD/uvd_7_0_sh_mask.h"
+#include "vega10/NBIF/nbif_6_1_offset.h"
+#include "vega10/HDP/hdp_4_0_offset.h"
+#include "vega10/MMHUB/mmhub_1_0_offset.h"
+#include "vega10/MMHUB/mmhub_1_0_sh_mask.h"
+
+static void uvd_v7_0_set_ring_funcs(struct amdgpu_device *adev);
+static void uvd_v7_0_set_enc_ring_funcs(struct amdgpu_device *adev);
+static void uvd_v7_0_set_irq_funcs(struct amdgpu_device *adev);
+static int uvd_v7_0_start(struct amdgpu_device *adev);
+static void uvd_v7_0_stop(struct amdgpu_device *adev);
+
+/**
+ * uvd_v7_0_ring_get_rptr - get read pointer
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Returns the current hardware read pointer
+ */
+static uint64_t uvd_v7_0_ring_get_rptr(struct amdgpu_ring *ring)
+{
+	struct amdgpu_device *adev = ring->adev;
+
+	return RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_RPTR));
+}
+
+/**
+ * uvd_v7_0_enc_ring_get_rptr - get enc read pointer
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Returns the current hardware enc read pointer
+ */
+static uint64_t uvd_v7_0_enc_ring_get_rptr(struct amdgpu_ring *ring)
+{
+	struct amdgpu_device *adev = ring->adev;
+
+	if (ring == &adev->uvd.ring_enc[0])
+		return RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_RPTR));
+	else
+		return RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_RPTR2));
+}
+
+/**
+ * uvd_v7_0_ring_get_wptr - get write pointer
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Returns the current hardware write pointer
+ */
+static uint64_t uvd_v7_0_ring_get_wptr(struct amdgpu_ring *ring)
+{
+	struct amdgpu_device *adev = ring->adev;
+
+	return RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_WPTR));
+}
+
+/**
+ * uvd_v7_0_enc_ring_get_wptr - get enc write pointer
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Returns the current hardware enc write pointer
+ */
+static uint64_t uvd_v7_0_enc_ring_get_wptr(struct amdgpu_ring *ring)
+{
+	struct amdgpu_device *adev = ring->adev;
+
+	if (ring == &adev->uvd.ring_enc[0])
+		return RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_WPTR));
+	else
+		return RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_WPTR2));
+}
+
+/**
+ * uvd_v7_0_ring_set_wptr - set write pointer
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Commits the write pointer to the hardware
+ */
+static void uvd_v7_0_ring_set_wptr(struct amdgpu_ring *ring)
+{
+	struct amdgpu_device *adev = ring->adev;
+
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_WPTR), lower_32_bits(ring->wptr));
+}
+
+/**
+ * uvd_v7_0_enc_ring_set_wptr - set enc write pointer
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Commits the enc write pointer to the hardware
+ */
+static void uvd_v7_0_enc_ring_set_wptr(struct amdgpu_ring *ring)
+{
+	struct amdgpu_device *adev = ring->adev;
+
+	if (ring == &adev->uvd.ring_enc[0])
+		WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_WPTR),
+			lower_32_bits(ring->wptr));
+	else
+		WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_WPTR2),
+			lower_32_bits(ring->wptr));
+}
+
+/**
+ * uvd_v7_0_enc_ring_test_ring - test if UVD ENC ring is working
+ *
+ * @ring: the engine to test on
+ *
+ */
+static int uvd_v7_0_enc_ring_test_ring(struct amdgpu_ring *ring)
+{
+	struct amdgpu_device *adev = ring->adev;
+	uint32_t rptr = amdgpu_ring_get_rptr(ring);
+	unsigned i;
+	int r;
+
+	r = amdgpu_ring_alloc(ring, 16);
+	if (r) {
+		DRM_ERROR("amdgpu: uvd enc failed to lock ring %d (%d).\n",
+			  ring->idx, r);
+		return r;
+	}
+	amdgpu_ring_write(ring, HEVC_ENC_CMD_END);
+	amdgpu_ring_commit(ring);
+
+	for (i = 0; i < adev->usec_timeout; i++) {
+		if (amdgpu_ring_get_rptr(ring) != rptr)
+			break;
+		DRM_UDELAY(1);
+	}
+
+	if (i < adev->usec_timeout) {
+		DRM_INFO("ring test on %d succeeded in %d usecs\n",
+			 ring->idx, i);
+	} else {
+		DRM_ERROR("amdgpu: ring %d test failed\n",
+			  ring->idx);
+		r = -ETIMEDOUT;
+	}
+
+	return r;
+}
+
+/**
+ * uvd_v7_0_enc_get_create_msg - generate a UVD ENC create msg
+ *
+ * @adev: amdgpu_device pointer
+ * @ring: ring we should submit the msg to
+ * @handle: session handle to use
+ * @fence: optional fence to return
+ *
+ * Open up a stream for HW test
+ */
+static int uvd_v7_0_enc_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
+				       struct dma_fence **fence)
+{
+	const unsigned ib_size_dw = 16;
+	struct amdgpu_job *job;
+	struct amdgpu_ib *ib;
+	struct dma_fence *f = NULL;
+	uint64_t dummy;
+	int i, r;
+
+	r = amdgpu_job_alloc_with_ib(ring->adev, ib_size_dw * 4, &job);
+	if (r)
+		return r;
+
+	ib = &job->ibs[0];
+	dummy = ib->gpu_addr + 1024;
+
+	ib->length_dw = 0;
+	ib->ptr[ib->length_dw++] = 0x00000018;
+	ib->ptr[ib->length_dw++] = 0x00000001; /* session info */
+	ib->ptr[ib->length_dw++] = handle;
+	ib->ptr[ib->length_dw++] = 0x00000000;
+	ib->ptr[ib->length_dw++] = upper_32_bits(dummy);
+	ib->ptr[ib->length_dw++] = dummy;
+
+	ib->ptr[ib->length_dw++] = 0x00000014;
+	ib->ptr[ib->length_dw++] = 0x00000002; /* task info */
+	ib->ptr[ib->length_dw++] = 0x0000001c;
+	ib->ptr[ib->length_dw++] = 0x00000000;
+	ib->ptr[ib->length_dw++] = 0x00000000;
+
+	ib->ptr[ib->length_dw++] = 0x00000008;
+	ib->ptr[ib->length_dw++] = 0x08000001; /* op initialize */
+
+	for (i = ib->length_dw; i < ib_size_dw; ++i)
+		ib->ptr[i] = 0x0;
+
+	r = amdgpu_ib_schedule(ring, 1, ib, NULL, &f);
+	job->fence = dma_fence_get(f);
+	if (r)
+		goto err;
+
+	amdgpu_job_free(job);
+	if (fence)
+		*fence = dma_fence_get(f);
+	dma_fence_put(f);
+	return 0;
+
+err:
+	amdgpu_job_free(job);
+	return r;
+}
+
+/**
+ * uvd_v7_0_enc_get_destroy_msg - generate a UVD ENC destroy msg
+ *
+ * @adev: amdgpu_device pointer
+ * @ring: ring we should submit the msg to
+ * @handle: session handle to use
+ * @fence: optional fence to return
+ *
+ * Close up a stream for HW test or if userspace failed to do so
+ */
+int uvd_v7_0_enc_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
+				 bool direct, struct dma_fence **fence)
+{
+	const unsigned ib_size_dw = 16;
+	struct amdgpu_job *job;
+	struct amdgpu_ib *ib;
+	struct dma_fence *f = NULL;
+	uint64_t dummy;
+	int i, r;
+
+	r = amdgpu_job_alloc_with_ib(ring->adev, ib_size_dw * 4, &job);
+	if (r)
+		return r;
+
+	ib = &job->ibs[0];
+	dummy = ib->gpu_addr + 1024;
+
+	ib->length_dw = 0;
+	ib->ptr[ib->length_dw++] = 0x00000018;
+	ib->ptr[ib->length_dw++] = 0x00000001;
+	ib->ptr[ib->length_dw++] = handle;
+	ib->ptr[ib->length_dw++] = 0x00000000;
+	ib->ptr[ib->length_dw++] = upper_32_bits(dummy);
+	ib->ptr[ib->length_dw++] = dummy;
+
+	ib->ptr[ib->length_dw++] = 0x00000014;
+	ib->ptr[ib->length_dw++] = 0x00000002;
+	ib->ptr[ib->length_dw++] = 0x0000001c;
+	ib->ptr[ib->length_dw++] = 0x00000000;
+	ib->ptr[ib->length_dw++] = 0x00000000;
+
+	ib->ptr[ib->length_dw++] = 0x00000008;
+	ib->ptr[ib->length_dw++] = 0x08000002; /* op close session */
+
+	for (i = ib->length_dw; i < ib_size_dw; ++i)
+		ib->ptr[i] = 0x0;
+
+	if (direct) {
+		r = amdgpu_ib_schedule(ring, 1, ib, NULL, &f);
+		job->fence = dma_fence_get(f);
+		if (r)
+			goto err;
+
+		amdgpu_job_free(job);
+	} else {
+		r = amdgpu_job_submit(job, ring, &ring->adev->vce.entity,
+				      AMDGPU_FENCE_OWNER_UNDEFINED, &f);
+		if (r)
+			goto err;
+	}
+
+	if (fence)
+		*fence = dma_fence_get(f);
+	dma_fence_put(f);
+	return 0;
+
+err:
+	amdgpu_job_free(job);
+	return r;
+}
+
+/**
+ * uvd_v7_0_enc_ring_test_ib - test if UVD ENC IBs are working
+ *
+ * @ring: the engine to test on
+ *
+ */
+static int uvd_v7_0_enc_ring_test_ib(struct amdgpu_ring *ring, long timeout)
+{
+	struct dma_fence *fence = NULL;
+	long r;
+
+	r = uvd_v7_0_enc_get_create_msg(ring, 1, NULL);
+	if (r) {
+		DRM_ERROR("amdgpu: failed to get create msg (%ld).\n", r);
+		goto error;
+	}
+
+	r = uvd_v7_0_enc_get_destroy_msg(ring, 1, true, &fence);
+	if (r) {
+		DRM_ERROR("amdgpu: failed to get destroy ib (%ld).\n", r);
+		goto error;
+	}
+
+	r = dma_fence_wait_timeout(fence, false, timeout);
+	if (r == 0) {
+		DRM_ERROR("amdgpu: IB test timed out.\n");
+		r = -ETIMEDOUT;
+	} else if (r < 0) {
+		DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
+	} else {
+		DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
+		r = 0;
+	}
+error:
+	dma_fence_put(fence);
+	return r;
+}
+
+static int uvd_v7_0_early_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	adev->uvd.num_enc_rings = 2;
+	uvd_v7_0_set_ring_funcs(adev);
+	uvd_v7_0_set_enc_ring_funcs(adev);
+	uvd_v7_0_set_irq_funcs(adev);
+
+	return 0;
+}
+
+static int uvd_v7_0_sw_init(void *handle)
+{
+	struct amdgpu_ring *ring;
+	struct amd_sched_rq *rq;
+	int i, r;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	/* UVD TRAP */
+	r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_UVD, 124, &adev->uvd.irq);
+	if (r)
+		return r;
+
+	/* UVD ENC TRAP */
+	for (i = 0; i < adev->uvd.num_enc_rings; ++i) {
+		r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_UVD, i + 119, &adev->uvd.irq);
+		if (r)
+			return r;
+	}
+
+	r = amdgpu_uvd_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->uvd.fw->data;
+		adev->firmware.ucode[AMDGPU_UCODE_ID_UVD].ucode_id = AMDGPU_UCODE_ID_UVD;
+		adev->firmware.ucode[AMDGPU_UCODE_ID_UVD].fw = adev->uvd.fw;
+		adev->firmware.fw_size +=
+			ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
+		DRM_INFO("PSP loading UVD firmware\n");
+	}
+
+	ring = &adev->uvd.ring_enc[0];
+	rq = &ring->sched.sched_rq[AMD_SCHED_PRIORITY_NORMAL];
+	r = amd_sched_entity_init(&ring->sched, &adev->uvd.entity_enc,
+				  rq, amdgpu_sched_jobs);
+	if (r) {
+		DRM_ERROR("Failed setting up UVD ENC run queue.\n");
+		return r;
+	}
+
+	r = amdgpu_uvd_resume(adev);
+	if (r)
+		return r;
+
+	ring = &adev->uvd.ring;
+	sprintf(ring->name, "uvd");
+	r = amdgpu_ring_init(adev, ring, 512, &adev->uvd.irq, 0);
+	if (r)
+		return r;
+
+	for (i = 0; i < adev->uvd.num_enc_rings; ++i) {
+		ring = &adev->uvd.ring_enc[i];
+		sprintf(ring->name, "uvd_enc%d", i);
+		r = amdgpu_ring_init(adev, ring, 512, &adev->uvd.irq, 0);
+		if (r)
+			return r;
+	}
+
+	return r;
+}
+
+static int uvd_v7_0_sw_fini(void *handle)
+{
+	int i, r;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	r = amdgpu_uvd_suspend(adev);
+	if (r)
+		return r;
+
+	amd_sched_entity_fini(&adev->uvd.ring_enc[0].sched, &adev->uvd.entity_enc);
+
+	for (i = 0; i < adev->uvd.num_enc_rings; ++i)
+		amdgpu_ring_fini(&adev->uvd.ring_enc[i]);
+
+	r = amdgpu_uvd_sw_fini(adev);
+	if (r)
+		return r;
+
+	return r;
+}
+
+/**
+ * uvd_v7_0_hw_init - start and test UVD block
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Initialize the hardware, boot up the VCPU and do some testing
+ */
+static int uvd_v7_0_hw_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	struct amdgpu_ring *ring = &adev->uvd.ring;
+	uint32_t tmp;
+	int i, r;
+
+	r = uvd_v7_0_start(adev);
+	if (r)
+		goto done;
+
+	ring->ready = true;
+	r = amdgpu_ring_test_ring(ring);
+	if (r) {
+		ring->ready = false;
+		goto done;
+	}
+
+	r = amdgpu_ring_alloc(ring, 10);
+	if (r) {
+		DRM_ERROR("amdgpu: ring failed to lock UVD ring (%d).\n", r);
+		goto done;
+	}
+
+	tmp = PACKET0(SOC15_REG_OFFSET(UVD, 0,
+		mmUVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL), 0);
+	amdgpu_ring_write(ring, tmp);
+	amdgpu_ring_write(ring, 0xFFFFF);
+
+	tmp = PACKET0(SOC15_REG_OFFSET(UVD, 0,
+		mmUVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL), 0);
+	amdgpu_ring_write(ring, tmp);
+	amdgpu_ring_write(ring, 0xFFFFF);
+
+	tmp = PACKET0(SOC15_REG_OFFSET(UVD, 0,
+		mmUVD_SEMA_SIGNAL_INCOMPLETE_TIMEOUT_CNTL), 0);
+	amdgpu_ring_write(ring, tmp);
+	amdgpu_ring_write(ring, 0xFFFFF);
+
+	/* Clear timeout status bits */
+	amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(UVD, 0,
+		mmUVD_SEMA_TIMEOUT_STATUS), 0));
+	amdgpu_ring_write(ring, 0x8);
+
+	amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(UVD, 0,
+		mmUVD_SEMA_CNTL), 0));
+	amdgpu_ring_write(ring, 3);
+
+	amdgpu_ring_commit(ring);
+
+	for (i = 0; i < adev->uvd.num_enc_rings; ++i) {
+		ring = &adev->uvd.ring_enc[i];
+		ring->ready = true;
+		r = amdgpu_ring_test_ring(ring);
+		if (r) {
+			ring->ready = false;
+			goto done;
+		}
+	}
+
+done:
+	if (!r)
+		DRM_INFO("UVD and UVD ENC initialized successfully.\n");
+
+	return r;
+}
+
+/**
+ * uvd_v7_0_hw_fini - stop the hardware block
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Stop the UVD block, mark ring as not ready any more
+ */
+static int uvd_v7_0_hw_fini(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	struct amdgpu_ring *ring = &adev->uvd.ring;
+
+	uvd_v7_0_stop(adev);
+	ring->ready = false;
+
+	return 0;
+}
+
+static int uvd_v7_0_suspend(void *handle)
+{
+	int r;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	r = uvd_v7_0_hw_fini(adev);
+	if (r)
+		return r;
+
+	/* Skip this for APU for now */
+	if (!(adev->flags & AMD_IS_APU)) {
+		r = amdgpu_uvd_suspend(adev);
+		if (r)
+			return r;
+	}
+
+	return r;
+}
+
+static int uvd_v7_0_resume(void *handle)
+{
+	int r;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	/* Skip this for APU for now */
+	if (!(adev->flags & AMD_IS_APU)) {
+		r = amdgpu_uvd_resume(adev);
+		if (r)
+			return r;
+	}
+	r = uvd_v7_0_hw_init(adev);
+	if (r)
+		return r;
+
+	return r;
+}
+
+/**
+ * uvd_v7_0_mc_resume - memory controller programming
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Let the UVD memory controller know it's offsets
+ */
+static void uvd_v7_0_mc_resume(struct amdgpu_device *adev)
+{
+	uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->uvd.fw->size + 4);
+	uint32_t offset;
+
+	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
+		WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW),
+			lower_32_bits(adev->firmware.ucode[AMDGPU_UCODE_ID_UVD].mc_addr));
+		WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH),
+			upper_32_bits(adev->firmware.ucode[AMDGPU_UCODE_ID_UVD].mc_addr));
+		offset = 0;
+	} else {
+		WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW),
+			lower_32_bits(adev->uvd.gpu_addr));
+		WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH),
+			upper_32_bits(adev->uvd.gpu_addr));
+		offset = size;
+	}
+
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0),
+				AMDGPU_UVD_FIRMWARE_OFFSET >> 3);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_SIZE0), size);
+
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW),
+			lower_32_bits(adev->uvd.gpu_addr + offset));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH),
+			upper_32_bits(adev->uvd.gpu_addr + offset));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1), (1 << 21));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_SIZE1), AMDGPU_UVD_HEAP_SIZE);
+
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW),
+			lower_32_bits(adev->uvd.gpu_addr + offset + AMDGPU_UVD_HEAP_SIZE));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH),
+			upper_32_bits(adev->uvd.gpu_addr + offset + AMDGPU_UVD_HEAP_SIZE));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2), (2 << 21));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_SIZE2),
+			AMDGPU_UVD_STACK_SIZE + (AMDGPU_UVD_SESSION_SIZE * 40));
+
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_UDEC_ADDR_CONFIG),
+			adev->gfx.config.gb_addr_config);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG),
+			adev->gfx.config.gb_addr_config);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG),
+			adev->gfx.config.gb_addr_config);
+
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_GP_SCRATCH4), adev->uvd.max_handles);
+}
+
+/**
+ * uvd_v7_0_start - start UVD block
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Setup and start the UVD block
+ */
+static int uvd_v7_0_start(struct amdgpu_device *adev)
+{
+	struct amdgpu_ring *ring = &adev->uvd.ring;
+	uint32_t rb_bufsz, tmp;
+	uint32_t lmi_swap_cntl;
+	uint32_t mp_swap_cntl;
+	int i, j, r;
+
+	/* disable DPG */
+	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_POWER_STATUS), 0,
+			~UVD_POWER_STATUS__UVD_PG_MODE_MASK);
+
+	/* disable byte swapping */
+	lmi_swap_cntl = 0;
+	mp_swap_cntl = 0;
+
+	uvd_v7_0_mc_resume(adev);
+
+	/* disable clock gating */
+	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_CGC_CTRL), 0,
+			~UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK);
+
+	/* disable interupt */
+	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN), 0,
+			~UVD_MASTINT_EN__VCPU_EN_MASK);
+
+	/* stall UMC and register bus before resetting VCPU */
+	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2),
+			UVD_LMI_CTRL2__STALL_ARB_UMC_MASK,
+			~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
+	mdelay(1);
+
+	/* put LMI, VCPU, RBC etc... into reset */
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
+		UVD_SOFT_RESET__LMI_SOFT_RESET_MASK |
+		UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK |
+		UVD_SOFT_RESET__LBSI_SOFT_RESET_MASK |
+		UVD_SOFT_RESET__RBC_SOFT_RESET_MASK |
+		UVD_SOFT_RESET__CSM_SOFT_RESET_MASK |
+		UVD_SOFT_RESET__CXW_SOFT_RESET_MASK |
+		UVD_SOFT_RESET__TAP_SOFT_RESET_MASK |
+		UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
+	mdelay(5);
+
+	/* initialize UVD memory controller */
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL),
+		(0x40 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
+		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
+		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
+		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
+		UVD_LMI_CTRL__REQ_MODE_MASK |
+		0x00100000L);
+
+#ifdef __BIG_ENDIAN
+	/* swap (8 in 32) RB and IB */
+	lmi_swap_cntl = 0xa;
+	mp_swap_cntl = 0;
+#endif
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_SWAP_CNTL), lmi_swap_cntl);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_MP_SWAP_CNTL), mp_swap_cntl);
+
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_MPC_SET_MUXA0), 0x40c2040);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_MPC_SET_MUXA1), 0x0);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_MPC_SET_MUXB0), 0x40c2040);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_MPC_SET_MUXB1), 0x0);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_MPC_SET_ALU), 0);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_MPC_SET_MUX), 0x88);
+
+	/* take all subblocks out of reset, except VCPU */
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
+			UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
+	mdelay(5);
+
+	/* enable VCPU clock */
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CNTL),
+			UVD_VCPU_CNTL__CLK_EN_MASK);
+
+	/* enable UMC */
+	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2), 0,
+			~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
+
+	/* boot up the VCPU */
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0);
+	mdelay(10);
+
+	for (i = 0; i < 10; ++i) {
+		uint32_t status;
+
+		for (j = 0; j < 100; ++j) {
+			status = RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_STATUS));
+			if (status & 2)
+				break;
+			mdelay(10);
+		}
+		r = 0;
+		if (status & 2)
+			break;
+
+		DRM_ERROR("UVD not responding, trying to reset the VCPU!!!\n");
+		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
+				UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
+				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
+		mdelay(10);
+		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
+				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
+		mdelay(10);
+		r = -1;
+	}
+
+	if (r) {
+		DRM_ERROR("UVD not responding, giving up!!!\n");
+		return r;
+	}
+	/* enable master interrupt */
+	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN),
+		(UVD_MASTINT_EN__VCPU_EN_MASK|UVD_MASTINT_EN__SYS_EN_MASK),
+		~(UVD_MASTINT_EN__VCPU_EN_MASK|UVD_MASTINT_EN__SYS_EN_MASK));
+
+	/* clear the bit 4 of UVD_STATUS */
+	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_STATUS), 0,
+			~(2 << UVD_STATUS__VCPU_REPORT__SHIFT));
+
+	/* force RBC into idle state */
+	rb_bufsz = order_base_2(ring->ring_size);
+	tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
+	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
+	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
+	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_WPTR_POLL_EN, 0);
+	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
+	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), tmp);
+
+	/* set the write pointer delay */
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL), 0);
+
+	/* set the wb address */
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR),
+			(upper_32_bits(ring->gpu_addr) >> 2));
+
+	/* programm the RB_BASE for ring buffer */
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW),
+			lower_32_bits(ring->gpu_addr));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH),
+			upper_32_bits(ring->gpu_addr));
+
+	/* Initialize the ring buffer's read and write pointers */
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_RPTR), 0);
+
+	ring->wptr = RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_RPTR));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_WPTR),
+			lower_32_bits(ring->wptr));
+
+	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
+			~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
+
+	ring = &adev->uvd.ring_enc[0];
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_RPTR), lower_32_bits(ring->wptr));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_WPTR), lower_32_bits(ring->wptr));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_BASE_LO), ring->gpu_addr);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_BASE_HI), upper_32_bits(ring->gpu_addr));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_SIZE), ring->ring_size / 4);
+
+	ring = &adev->uvd.ring_enc[1];
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_RPTR2), lower_32_bits(ring->wptr));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_WPTR2), lower_32_bits(ring->wptr));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_BASE_LO2), ring->gpu_addr);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_BASE_HI2), upper_32_bits(ring->gpu_addr));
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_SIZE2), ring->ring_size / 4);
+
+	return 0;
+}
+
+/**
+ * uvd_v7_0_stop - stop UVD block
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * stop the UVD block
+ */
+static void uvd_v7_0_stop(struct amdgpu_device *adev)
+{
+	/* force RBC into idle state */
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0x11010101);
+
+	/* Stall UMC and register bus before resetting VCPU */
+	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2),
+			UVD_LMI_CTRL2__STALL_ARB_UMC_MASK,
+			~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
+	mdelay(1);
+
+	/* put VCPU into reset */
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
+			UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
+	mdelay(5);
+
+	/* disable VCPU clock */
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CNTL), 0x0);
+
+	/* Unstall UMC and register bus */
+	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2), 0,
+			~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
+}
+
+/**
+ * uvd_v7_0_ring_emit_fence - emit an fence & trap command
+ *
+ * @ring: amdgpu_ring pointer
+ * @fence: fence to emit
+ *
+ * Write a fence and a trap command to the ring.
+ */
+static void uvd_v7_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
+				     unsigned flags)
+{
+	WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
+
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_CONTEXT_ID), 0));
+	amdgpu_ring_write(ring, seq);
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
+	amdgpu_ring_write(ring, addr & 0xffffffff);
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
+	amdgpu_ring_write(ring, upper_32_bits(addr) & 0xff);
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
+	amdgpu_ring_write(ring, 0);
+
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
+	amdgpu_ring_write(ring, 0);
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
+	amdgpu_ring_write(ring, 0);
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
+	amdgpu_ring_write(ring, 2);
+}
+
+/**
+ * uvd_v7_0_enc_ring_emit_fence - emit an enc fence & trap command
+ *
+ * @ring: amdgpu_ring pointer
+ * @fence: fence to emit
+ *
+ * Write enc a fence and a trap command to the ring.
+ */
+static void uvd_v7_0_enc_ring_emit_fence(struct amdgpu_ring *ring, u64 addr,
+			u64 seq, unsigned flags)
+{
+	WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
+
+	amdgpu_ring_write(ring, HEVC_ENC_CMD_FENCE);
+	amdgpu_ring_write(ring, addr);
+	amdgpu_ring_write(ring, upper_32_bits(addr));
+	amdgpu_ring_write(ring, seq);
+	amdgpu_ring_write(ring, HEVC_ENC_CMD_TRAP);
+}
+
+/**
+ * uvd_v7_0_ring_emit_hdp_flush - emit an hdp flush
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Emits an hdp flush.
+ */
+static void uvd_v7_0_ring_emit_hdp_flush(struct amdgpu_ring *ring)
+{
+	amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(NBIF, 0,
+		mmHDP_MEM_COHERENCY_FLUSH_CNTL), 0));
+	amdgpu_ring_write(ring, 0);
+}
+
+/**
+ * uvd_v7_0_ring_hdp_invalidate - emit an hdp invalidate
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Emits an hdp invalidate.
+ */
+static void uvd_v7_0_ring_emit_hdp_invalidate(struct amdgpu_ring *ring)
+{
+	amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(HDP, 0, mmHDP_DEBUG0), 0));
+	amdgpu_ring_write(ring, 1);
+}
+
+/**
+ * uvd_v7_0_ring_test_ring - register write test
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Test if we can successfully write to the context register
+ */
+static int uvd_v7_0_ring_test_ring(struct amdgpu_ring *ring)
+{
+	struct amdgpu_device *adev = ring->adev;
+	uint32_t tmp = 0;
+	unsigned i;
+	int r;
+
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_CONTEXT_ID), 0xCAFEDEAD);
+	r = amdgpu_ring_alloc(ring, 3);
+	if (r) {
+		DRM_ERROR("amdgpu: cp failed to lock ring %d (%d).\n",
+			  ring->idx, r);
+		return r;
+	}
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_CONTEXT_ID), 0));
+	amdgpu_ring_write(ring, 0xDEADBEEF);
+	amdgpu_ring_commit(ring);
+	for (i = 0; i < adev->usec_timeout; i++) {
+		tmp = RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_CONTEXT_ID));
+		if (tmp == 0xDEADBEEF)
+			break;
+		DRM_UDELAY(1);
+	}
+
+	if (i < adev->usec_timeout) {
+		DRM_INFO("ring test on %d succeeded in %d usecs\n",
+			 ring->idx, i);
+	} else {
+		DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n",
+			  ring->idx, tmp);
+		r = -EINVAL;
+	}
+	return r;
+}
+
+/**
+ * uvd_v7_0_ring_emit_ib - execute indirect buffer
+ *
+ * @ring: amdgpu_ring pointer
+ * @ib: indirect buffer to execute
+ *
+ * Write ring commands to execute the indirect buffer
+ */
+static void uvd_v7_0_ring_emit_ib(struct amdgpu_ring *ring,
+				  struct amdgpu_ib *ib,
+				  unsigned vm_id, bool ctx_switch)
+{
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_VMID), 0));
+	amdgpu_ring_write(ring, vm_id);
+
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_LOW), 0));
+	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_HIGH), 0));
+	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_IB_SIZE), 0));
+	amdgpu_ring_write(ring, ib->length_dw);
+}
+
+/**
+ * uvd_v7_0_enc_ring_emit_ib - enc execute indirect buffer
+ *
+ * @ring: amdgpu_ring pointer
+ * @ib: indirect buffer to execute
+ *
+ * Write enc ring commands to execute the indirect buffer
+ */
+static void uvd_v7_0_enc_ring_emit_ib(struct amdgpu_ring *ring,
+		struct amdgpu_ib *ib, unsigned int vm_id, bool ctx_switch)
+{
+	amdgpu_ring_write(ring, HEVC_ENC_CMD_IB_VM);
+	amdgpu_ring_write(ring, vm_id);
+	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
+	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
+	amdgpu_ring_write(ring, ib->length_dw);
+}
+
+static void uvd_v7_0_vm_reg_write(struct amdgpu_ring *ring,
+				uint32_t data0, uint32_t data1)
+{
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
+	amdgpu_ring_write(ring, data0);
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
+	amdgpu_ring_write(ring, data1);
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
+	amdgpu_ring_write(ring, 8);
+}
+
+static void uvd_v7_0_vm_reg_wait(struct amdgpu_ring *ring,
+				uint32_t data0, uint32_t data1, uint32_t mask)
+{
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
+	amdgpu_ring_write(ring, data0);
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
+	amdgpu_ring_write(ring, data1);
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GP_SCRATCH8), 0));
+	amdgpu_ring_write(ring, mask);
+	amdgpu_ring_write(ring,
+		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
+	amdgpu_ring_write(ring, 12);
+}
+
+static void uvd_v7_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
+					unsigned vm_id, uint64_t pd_addr)
+{
+	uint32_t data0, data1, mask;
+	unsigned eng = ring->idx;
+	unsigned i;
+
+	pd_addr = pd_addr | 0x1; /* valid bit */
+	/* now only use physical base address of PDE and valid */
+	BUG_ON(pd_addr & 0xFFFF00000000003EULL);
+
+	for (i = 0; i < AMDGPU_MAX_VMHUBS; ++i) {
+		struct amdgpu_vmhub *hub = &ring->adev->vmhub[i];
+		uint32_t req = hub->get_invalidate_req(vm_id);
+
+		data0 = (hub->ctx0_ptb_addr_hi32 + vm_id * 2) << 2;
+		data1 = upper_32_bits(pd_addr);
+		uvd_v7_0_vm_reg_write(ring, data0, data1);
+
+		data0 = (hub->ctx0_ptb_addr_lo32 + vm_id * 2) << 2;
+		data1 = lower_32_bits(pd_addr);
+		uvd_v7_0_vm_reg_write(ring, data0, data1);
+
+		data0 = (hub->ctx0_ptb_addr_lo32 + vm_id * 2) << 2;
+		data1 = lower_32_bits(pd_addr);
+		mask = 0xffffffff;
+		uvd_v7_0_vm_reg_wait(ring, data0, data1, mask);
+
+		/* flush TLB */
+		data0 = (hub->vm_inv_eng0_req + eng) << 2;
+		data1 = req;
+		uvd_v7_0_vm_reg_write(ring, data0, data1);
+
+		/* wait for flush */
+		data0 = (hub->vm_inv_eng0_ack + eng) << 2;
+		data1 = 1 << vm_id;
+		mask =  1 << vm_id;
+		uvd_v7_0_vm_reg_wait(ring, data0, data1, mask);
+	}
+}
+
+static void uvd_v7_0_enc_ring_insert_end(struct amdgpu_ring *ring)
+{
+	amdgpu_ring_write(ring, HEVC_ENC_CMD_END);
+}
+
+static void uvd_v7_0_enc_ring_emit_vm_flush(struct amdgpu_ring *ring,
+			 unsigned int vm_id, uint64_t pd_addr)
+{
+	unsigned eng = ring->idx;
+	unsigned i;
+
+	pd_addr = pd_addr | 0x1; /* valid bit */
+	/* now only use physical base address of PDE and valid */
+	BUG_ON(pd_addr & 0xFFFF00000000003EULL);
+
+	for (i = 0; i < AMDGPU_MAX_VMHUBS; ++i) {
+		struct amdgpu_vmhub *hub = &ring->adev->vmhub[i];
+		uint32_t req = hub->get_invalidate_req(vm_id);
+
+		amdgpu_ring_write(ring, HEVC_ENC_CMD_REG_WRITE);
+		amdgpu_ring_write(ring,
+			(hub->ctx0_ptb_addr_hi32 + vm_id * 2) << 2);
+		amdgpu_ring_write(ring, upper_32_bits(pd_addr));
+
+		amdgpu_ring_write(ring, HEVC_ENC_CMD_REG_WRITE);
+		amdgpu_ring_write(ring,
+			(hub->ctx0_ptb_addr_lo32 + vm_id * 2) << 2);
+		amdgpu_ring_write(ring, lower_32_bits(pd_addr));
+
+		amdgpu_ring_write(ring, HEVC_ENC_CMD_REG_WAIT);
+		amdgpu_ring_write(ring,
+			(hub->ctx0_ptb_addr_lo32 + vm_id * 2) << 2);
+		amdgpu_ring_write(ring, 0xffffffff);
+		amdgpu_ring_write(ring, lower_32_bits(pd_addr));
+
+		/* flush TLB */
+		amdgpu_ring_write(ring, HEVC_ENC_CMD_REG_WRITE);
+		amdgpu_ring_write(ring,	(hub->vm_inv_eng0_req + eng) << 2);
+		amdgpu_ring_write(ring, req);
+
+		/* wait for flush */
+		amdgpu_ring_write(ring, HEVC_ENC_CMD_REG_WAIT);
+		amdgpu_ring_write(ring, (hub->vm_inv_eng0_ack + eng) << 2);
+		amdgpu_ring_write(ring, 1 << vm_id);
+		amdgpu_ring_write(ring, 1 << vm_id);
+	}
+}
+
+#if 0
+static bool uvd_v7_0_is_idle(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	return !(RREG32(mmSRBM_STATUS) & SRBM_STATUS__UVD_BUSY_MASK);
+}
+
+static int uvd_v7_0_wait_for_idle(void *handle)
+{
+	unsigned i;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	for (i = 0; i < adev->usec_timeout; i++) {
+		if (uvd_v7_0_is_idle(handle))
+			return 0;
+	}
+	return -ETIMEDOUT;
+}
+
+#define AMDGPU_UVD_STATUS_BUSY_MASK    0xfd
+static bool uvd_v7_0_check_soft_reset(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	u32 srbm_soft_reset = 0;
+	u32 tmp = RREG32(mmSRBM_STATUS);
+
+	if (REG_GET_FIELD(tmp, SRBM_STATUS, UVD_RQ_PENDING) ||
+	    REG_GET_FIELD(tmp, SRBM_STATUS, UVD_BUSY) ||
+	    (RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_STATUS) &
+		    AMDGPU_UVD_STATUS_BUSY_MASK)))
+		srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
+				SRBM_SOFT_RESET, SOFT_RESET_UVD, 1);
+
+	if (srbm_soft_reset) {
+		adev->uvd.srbm_soft_reset = srbm_soft_reset;
+		return true;
+	} else {
+		adev->uvd.srbm_soft_reset = 0;
+		return false;
+	}
+}
+
+static int uvd_v7_0_pre_soft_reset(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	if (!adev->uvd.srbm_soft_reset)
+		return 0;
+
+	uvd_v7_0_stop(adev);
+	return 0;
+}
+
+static int uvd_v7_0_soft_reset(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	u32 srbm_soft_reset;
+
+	if (!adev->uvd.srbm_soft_reset)
+		return 0;
+	srbm_soft_reset = adev->uvd.srbm_soft_reset;
+
+	if (srbm_soft_reset) {
+		u32 tmp;
+
+		tmp = RREG32(mmSRBM_SOFT_RESET);
+		tmp |= srbm_soft_reset;
+		dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
+		WREG32(mmSRBM_SOFT_RESET, tmp);
+		tmp = RREG32(mmSRBM_SOFT_RESET);
+
+		udelay(50);
+
+		tmp &= ~srbm_soft_reset;
+		WREG32(mmSRBM_SOFT_RESET, tmp);
+		tmp = RREG32(mmSRBM_SOFT_RESET);
+
+		/* Wait a little for things to settle down */
+		udelay(50);
+	}
+
+	return 0;
+}
+
+static int uvd_v7_0_post_soft_reset(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	if (!adev->uvd.srbm_soft_reset)
+		return 0;
+
+	mdelay(5);
+
+	return uvd_v7_0_start(adev);
+}
+#endif
+
+static int uvd_v7_0_set_interrupt_state(struct amdgpu_device *adev,
+					struct amdgpu_irq_src *source,
+					unsigned type,
+					enum amdgpu_interrupt_state state)
+{
+	// TODO
+	return 0;
+}
+
+static int uvd_v7_0_process_interrupt(struct amdgpu_device *adev,
+				      struct amdgpu_irq_src *source,
+				      struct amdgpu_iv_entry *entry)
+{
+	DRM_DEBUG("IH: UVD TRAP\n");
+	switch (entry->src_id) {
+	case 124:
+		amdgpu_fence_process(&adev->uvd.ring);
+		break;
+	case 119:
+		amdgpu_fence_process(&adev->uvd.ring_enc[0]);
+		break;
+	case 120:
+		amdgpu_fence_process(&adev->uvd.ring_enc[1]);
+		break;
+	default:
+		DRM_ERROR("Unhandled interrupt: %d %d\n",
+			  entry->src_id, entry->src_data[0]);
+		break;
+	}
+
+	return 0;
+}
+
+#if 0
+static void uvd_v7_0_set_sw_clock_gating(struct amdgpu_device *adev)
+{
+	uint32_t data, data1, data2, suvd_flags;
+
+	data = RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_CGC_CTRL));
+	data1 = RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SUVD_CGC_GATE));
+	data2 = RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SUVD_CGC_CTRL));
+
+	data &= ~(UVD_CGC_CTRL__CLK_OFF_DELAY_MASK |
+		  UVD_CGC_CTRL__CLK_GATE_DLY_TIMER_MASK);
+
+	suvd_flags = 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;
+
+	data |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK |
+		(1 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_GATE_DLY_TIMER)) |
+		(4 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_OFF_DELAY));
+
+	data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
+			UVD_CGC_CTRL__SYS_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_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 |
+			UVD_CGC_CTRL__JPEG_MODE_MASK |
+			UVD_CGC_CTRL__JPEG2_MODE_MASK |
+			UVD_CGC_CTRL__SCPU_MODE_MASK);
+	data2 &= ~(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);
+	data1 |= suvd_flags;
+
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_CGC_CTRL), data);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_CGC_GATE), 0);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SUVD_CGC_GATE), data1);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SUVD_CGC_CTRL), data2);
+}
+
+static void uvd_v7_0_set_hw_clock_gating(struct amdgpu_device *adev)
+{
+	uint32_t data, data1, cgc_flags, suvd_flags;
+
+	data = RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_CGC_GATE));
+	data1 = RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SUVD_CGC_GATE));
+
+	cgc_flags = UVD_CGC_GATE__SYS_MASK |
+		UVD_CGC_GATE__UDEC_MASK |
+		UVD_CGC_GATE__MPEG2_MASK |
+		UVD_CGC_GATE__RBC_MASK |
+		UVD_CGC_GATE__LMI_MC_MASK |
+		UVD_CGC_GATE__IDCT_MASK |
+		UVD_CGC_GATE__MPRD_MASK |
+		UVD_CGC_GATE__MPC_MASK |
+		UVD_CGC_GATE__LBSI_MASK |
+		UVD_CGC_GATE__LRBBM_MASK |
+		UVD_CGC_GATE__UDEC_RE_MASK |
+		UVD_CGC_GATE__UDEC_CM_MASK |
+		UVD_CGC_GATE__UDEC_IT_MASK |
+		UVD_CGC_GATE__UDEC_DB_MASK |
+		UVD_CGC_GATE__UDEC_MP_MASK |
+		UVD_CGC_GATE__WCB_MASK |
+		UVD_CGC_GATE__VCPU_MASK |
+		UVD_CGC_GATE__SCPU_MASK |
+		UVD_CGC_GATE__JPEG_MASK |
+		UVD_CGC_GATE__JPEG2_MASK;
+
+	suvd_flags = 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;
+
+	data |= cgc_flags;
+	data1 |= suvd_flags;
+
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_CGC_GATE), data);
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SUVD_CGC_GATE), data1);
+}
+
+static void uvd_v7_0_set_bypass_mode(struct amdgpu_device *adev, bool enable)
+{
+	u32 tmp = RREG32_SMC(ixGCK_DFS_BYPASS_CNTL);
+
+	if (enable)
+		tmp |= (GCK_DFS_BYPASS_CNTL__BYPASSDCLK_MASK |
+			GCK_DFS_BYPASS_CNTL__BYPASSVCLK_MASK);
+	else
+		tmp &= ~(GCK_DFS_BYPASS_CNTL__BYPASSDCLK_MASK |
+			 GCK_DFS_BYPASS_CNTL__BYPASSVCLK_MASK);
+
+	WREG32_SMC(ixGCK_DFS_BYPASS_CNTL, tmp);
+}
+
+
+static int uvd_v7_0_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;
+
+	uvd_v7_0_set_bypass_mode(adev, enable);
+
+	if (!(adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG))
+		return 0;
+
+	if (enable) {
+		/* disable HW gating and enable Sw gating */
+		uvd_v7_0_set_sw_clock_gating(adev);
+	} else {
+		/* wait for STATUS to clear */
+		if (uvd_v7_0_wait_for_idle(handle))
+			return -EBUSY;
+
+		/* enable HW gates because UVD is idle */
+		/* uvd_v7_0_set_hw_clock_gating(adev); */
+	}
+
+	return 0;
+}
+
+static int uvd_v7_0_set_powergating_state(void *handle,
+					  enum amd_powergating_state state)
+{
+	/* This doesn't actually powergate the UVD block.
+	 * That's done in the dpm code via the SMC.  This
+	 * just re-inits the block as necessary.  The actual
+	 * gating still happens in the dpm code.  We should
+	 * revisit this when there is a cleaner line between
+	 * the smc and the hw blocks
+	 */
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	if (!(adev->pg_flags & AMD_PG_SUPPORT_UVD))
+		return 0;
+
+	WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_POWER_STATUS), UVD_POWER_STATUS__UVD_PG_EN_MASK);
+
+	if (state == AMD_PG_STATE_GATE) {
+		uvd_v7_0_stop(adev);
+		return 0;
+	} else {
+		return uvd_v7_0_start(adev);
+	}
+}
+#endif
+
+static int uvd_v7_0_set_clockgating_state(void *handle,
+					  enum amd_clockgating_state state)
+{
+	/* needed for driver unload*/
+	return 0;
+}
+
+const struct amd_ip_funcs uvd_v7_0_ip_funcs = {
+	.name = "uvd_v7_0",
+	.early_init = uvd_v7_0_early_init,
+	.late_init = NULL,
+	.sw_init = uvd_v7_0_sw_init,
+	.sw_fini = uvd_v7_0_sw_fini,
+	.hw_init = uvd_v7_0_hw_init,
+	.hw_fini = uvd_v7_0_hw_fini,
+	.suspend = uvd_v7_0_suspend,
+	.resume = uvd_v7_0_resume,
+	.is_idle = NULL /* uvd_v7_0_is_idle */,
+	.wait_for_idle = NULL /* uvd_v7_0_wait_for_idle */,
+	.check_soft_reset = NULL /* uvd_v7_0_check_soft_reset */,
+	.pre_soft_reset = NULL /* uvd_v7_0_pre_soft_reset */,
+	.soft_reset = NULL /* uvd_v7_0_soft_reset */,
+	.post_soft_reset = NULL /* uvd_v7_0_post_soft_reset */,
+	.set_clockgating_state = uvd_v7_0_set_clockgating_state,
+	.set_powergating_state = NULL /* uvd_v7_0_set_powergating_state */,
+};
+
+static const struct amdgpu_ring_funcs uvd_v7_0_ring_vm_funcs = {
+	.type = AMDGPU_RING_TYPE_UVD,
+	.align_mask = 0xf,
+	.nop = PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP), 0),
+	.support_64bit_ptrs = false,
+	.get_rptr = uvd_v7_0_ring_get_rptr,
+	.get_wptr = uvd_v7_0_ring_get_wptr,
+	.set_wptr = uvd_v7_0_ring_set_wptr,
+	.emit_frame_size =
+		2 + /* uvd_v7_0_ring_emit_hdp_flush */
+		2 + /* uvd_v7_0_ring_emit_hdp_invalidate */
+		34 * AMDGPU_MAX_VMHUBS + /* uvd_v7_0_ring_emit_vm_flush */
+		14 + 14, /* uvd_v7_0_ring_emit_fence x2 vm fence */
+	.emit_ib_size = 8, /* uvd_v7_0_ring_emit_ib */
+	.emit_ib = uvd_v7_0_ring_emit_ib,
+	.emit_fence = uvd_v7_0_ring_emit_fence,
+	.emit_vm_flush = uvd_v7_0_ring_emit_vm_flush,
+	.emit_hdp_flush = uvd_v7_0_ring_emit_hdp_flush,
+	.emit_hdp_invalidate = uvd_v7_0_ring_emit_hdp_invalidate,
+	.test_ring = uvd_v7_0_ring_test_ring,
+	.test_ib = amdgpu_uvd_ring_test_ib,
+	.insert_nop = amdgpu_ring_insert_nop,
+	.pad_ib = amdgpu_ring_generic_pad_ib,
+	.begin_use = amdgpu_uvd_ring_begin_use,
+	.end_use = amdgpu_uvd_ring_end_use,
+};
+
+static const struct amdgpu_ring_funcs uvd_v7_0_enc_ring_vm_funcs = {
+	.type = AMDGPU_RING_TYPE_UVD_ENC,
+	.align_mask = 0x3f,
+	.nop = HEVC_ENC_CMD_NO_OP,
+	.support_64bit_ptrs = false,
+	.get_rptr = uvd_v7_0_enc_ring_get_rptr,
+	.get_wptr = uvd_v7_0_enc_ring_get_wptr,
+	.set_wptr = uvd_v7_0_enc_ring_set_wptr,
+	.emit_frame_size =
+		17 * AMDGPU_MAX_VMHUBS + /* uvd_v7_0_enc_ring_emit_vm_flush */
+		5 + 5 + /* uvd_v7_0_enc_ring_emit_fence x2 vm fence */
+		1, /* uvd_v7_0_enc_ring_insert_end */
+	.emit_ib_size = 5, /* uvd_v7_0_enc_ring_emit_ib */
+	.emit_ib = uvd_v7_0_enc_ring_emit_ib,
+	.emit_fence = uvd_v7_0_enc_ring_emit_fence,
+	.emit_vm_flush = uvd_v7_0_enc_ring_emit_vm_flush,
+	.test_ring = uvd_v7_0_enc_ring_test_ring,
+	.test_ib = uvd_v7_0_enc_ring_test_ib,
+	.insert_nop = amdgpu_ring_insert_nop,
+	.insert_end = uvd_v7_0_enc_ring_insert_end,
+	.pad_ib = amdgpu_ring_generic_pad_ib,
+	.begin_use = amdgpu_uvd_ring_begin_use,
+	.end_use = amdgpu_uvd_ring_end_use,
+};
+
+static void uvd_v7_0_set_ring_funcs(struct amdgpu_device *adev)
+{
+	adev->uvd.ring.funcs = &uvd_v7_0_ring_vm_funcs;
+	DRM_INFO("UVD is enabled in VM mode\n");
+}
+
+static void uvd_v7_0_set_enc_ring_funcs(struct amdgpu_device *adev)
+{
+	int i;
+
+	for (i = 0; i < adev->uvd.num_enc_rings; ++i)
+		adev->uvd.ring_enc[i].funcs = &uvd_v7_0_enc_ring_vm_funcs;
+
+	DRM_INFO("UVD ENC is enabled in VM mode\n");
+}
+
+static const struct amdgpu_irq_src_funcs uvd_v7_0_irq_funcs = {
+	.set = uvd_v7_0_set_interrupt_state,
+	.process = uvd_v7_0_process_interrupt,
+};
+
+static void uvd_v7_0_set_irq_funcs(struct amdgpu_device *adev)
+{
+	adev->uvd.irq.num_types = adev->uvd.num_enc_rings + 1;
+	adev->uvd.irq.funcs = &uvd_v7_0_irq_funcs;
+}
+
+const struct amdgpu_ip_block_version uvd_v7_0_ip_block =
+{
+		.type = AMD_IP_BLOCK_TYPE_UVD,
+		.major = 7,
+		.minor = 0,
+		.rev = 0,
+		.funcs = &uvd_v7_0_ip_funcs,
+};

drivers/gpu/drm/amd/amdgpu/uvd_v7_0.h

+/*
+ * Copyright 2016 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __UVD_V7_0_H__
+#define __UVD_V7_0_H__
+
+extern const struct amdgpu_ip_block_version uvd_v7_0_ip_block;
+
+#endif