/*
 * 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 "amdgpu.h"
#include "amdgpu_uvd.h"
#include "amdgpu_cs.h"
#include "soc15.h"
#include "soc15d.h"
#include "soc15_common.h"
#include "mmsch_v1_0.h"

#include "uvd/uvd_7_0_offset.h"
#include "uvd/uvd_7_0_sh_mask.h"
#include "vce/vce_4_0_offset.h"
#include "vce/vce_4_0_default.h"
#include "vce/vce_4_0_sh_mask.h"
#include "nbif/nbif_6_1_offset.h"
#include "mmhub/mmhub_1_0_offset.h"
#include "mmhub/mmhub_1_0_sh_mask.h"
#include "ivsrcid/uvd/irqsrcs_uvd_7_0.h"

#define mmUVD_PG0_CC_UVD_HARVESTING                                                                    0x00c7
#define mmUVD_PG0_CC_UVD_HARVESTING_BASE_IDX                                                           1
//UVD_PG0_CC_UVD_HARVESTING
#define UVD_PG0_CC_UVD_HARVESTING__UVD_DISABLE__SHIFT                                                         0x1
#define UVD_PG0_CC_UVD_HARVESTING__UVD_DISABLE_MASK                                                           0x00000002L

#define UVD7_MAX_HW_INSTANCES_VEGA20                    2

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);
static int uvd_v7_0_sriov_start(struct amdgpu_device *adev);

static int amdgpu_ih_clientid_uvds[] = {
        SOC15_IH_CLIENTID_UVD,
        SOC15_IH_CLIENTID_UVD1
};

/**
 * 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(UVD, ring->me, 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.inst[ring->me].ring_enc[0])
                return RREG32_SOC15(UVD, ring->me, mmUVD_RB_RPTR);
        else
                return RREG32_SOC15(UVD, ring->me, 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(UVD, ring->me, 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->use_doorbell)
                return *ring->wptr_cpu_addr;

        if (ring == &adev->uvd.inst[ring->me].ring_enc[0])
                return RREG32_SOC15(UVD, ring->me, mmUVD_RB_WPTR);
        else
                return RREG32_SOC15(UVD, ring->me, 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(UVD, ring->me, 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->use_doorbell) {
                /* XXX check if swapping is necessary on BE */
                *ring->wptr_cpu_addr = lower_32_bits(ring->wptr);
                WDOORBELL32(ring->doorbell_index, lower_32_bits(ring->wptr));
                return;
        }

        if (ring == &adev->uvd.inst[ring->me].ring_enc[0])
                WREG32_SOC15(UVD, ring->me, mmUVD_RB_WPTR,
                        lower_32_bits(ring->wptr));
        else
                WREG32_SOC15(UVD, ring->me, 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;
        unsigned i;
        int r;

        if (amdgpu_sriov_vf(adev))
                return 0;

        r = amdgpu_ring_alloc(ring, 16);
        if (r)
                return r;

        rptr = amdgpu_ring_get_rptr(ring);

        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;
                udelay(1);
        }

        if (i >= adev->usec_timeout)
                r = -ETIMEDOUT;

        return r;
}

/**
 * uvd_v7_0_enc_get_create_msg - generate a UVD ENC create msg
 *
 * @ring: ring we should submit the msg to
 * @handle: session handle to use
 * @bo: amdgpu object for which we query the offset
 * @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, u32 handle,
                                       struct amdgpu_bo *bo,
                                       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 addr;
        int i, r;

        r = amdgpu_job_alloc_with_ib(ring->adev, NULL, NULL, ib_size_dw * 4,
                                     AMDGPU_IB_POOL_DIRECT, &job,
                                     AMDGPU_KERNEL_JOB_ID_VCN_RING_TEST);
        if (r)
                return r;

        ib = &job->ibs[0];
        addr = amdgpu_bo_gpu_offset(bo);

        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(addr);
        ib->ptr[ib->length_dw++] = addr;

        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_job_submit_direct(job, ring, &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_get_destroy_msg - generate a UVD ENC destroy msg
 *
 * @ring: ring we should submit the msg to
 * @handle: session handle to use
 * @bo: amdgpu object for which we query the offset
 * @fence: optional fence to return
 *
 * Close up a stream for HW test or if userspace failed to do so
 */
static int uvd_v7_0_enc_get_destroy_msg(struct amdgpu_ring *ring, u32 handle,
                                        struct amdgpu_bo *bo,
                                        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 addr;
        int i, r;

        r = amdgpu_job_alloc_with_ib(ring->adev, NULL, NULL, ib_size_dw * 4,
                                     AMDGPU_IB_POOL_DIRECT, &job,
                                     AMDGPU_KERNEL_JOB_ID_VCN_RING_TEST);
        if (r)
                return r;

        ib = &job->ibs[0];
        addr = amdgpu_bo_gpu_offset(bo);

        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(addr);
        ib->ptr[ib->length_dw++] = addr;

        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;

        r = amdgpu_job_submit_direct(job, ring, &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
 * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
 *
 */
static int uvd_v7_0_enc_ring_test_ib(struct amdgpu_ring *ring, long timeout)
{
        struct dma_fence *fence = NULL;
        struct amdgpu_bo *bo = ring->adev->uvd.ib_bo;
        long r;

        r = uvd_v7_0_enc_get_create_msg(ring, 1, bo, NULL);
        if (r)
                goto error;

        r = uvd_v7_0_enc_get_destroy_msg(ring, 1, bo, &fence);
        if (r)
                goto error;

        r = dma_fence_wait_timeout(fence, false, timeout);
        if (r == 0)
                r = -ETIMEDOUT;
        else if (r > 0)
                r = 0;

error:
        dma_fence_put(fence);
        return r;
}

static int uvd_v7_0_early_init(struct amdgpu_ip_block *ip_block)
{
        struct amdgpu_device *adev = ip_block->adev;

        if (adev->asic_type == CHIP_VEGA20) {
                u32 harvest;
                int i;

                adev->uvd.num_uvd_inst = UVD7_MAX_HW_INSTANCES_VEGA20;
                for (i = 0; i < adev->uvd.num_uvd_inst; i++) {
                        harvest = RREG32_SOC15(UVD, i, mmUVD_PG0_CC_UVD_HARVESTING);
                        if (harvest & UVD_PG0_CC_UVD_HARVESTING__UVD_DISABLE_MASK) {
                                adev->uvd.harvest_config |= 1 << i;
                        }
                }
                if (adev->uvd.harvest_config == (AMDGPU_UVD_HARVEST_UVD0 |
                                                 AMDGPU_UVD_HARVEST_UVD1))
                        /* both instances are harvested, disable the block */
                        return -ENOENT;
        } else {
                adev->uvd.num_uvd_inst = 1;
        }

        if (amdgpu_sriov_vf(adev))
                adev->uvd.num_enc_rings = 1;
        else
                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(struct amdgpu_ip_block *ip_block)
{
        struct amdgpu_ring *ring;

        int i, j, r;
        struct amdgpu_device *adev = ip_block->adev;

        for (j = 0; j < adev->uvd.num_uvd_inst; j++) {
                if (adev->uvd.harvest_config & (1 << j))
                        continue;
                /* UVD TRAP */
                r = amdgpu_irq_add_id(adev, amdgpu_ih_clientid_uvds[j], UVD_7_0__SRCID__UVD_SYSTEM_MESSAGE_INTERRUPT, &adev->uvd.inst[j].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_uvds[j], i + UVD_7_0__SRCID__UVD_ENC_GEN_PURP, &adev->uvd.inst[j].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);

                if (adev->uvd.num_uvd_inst == UVD7_MAX_HW_INSTANCES_VEGA20) {
                        adev->firmware.ucode[AMDGPU_UCODE_ID_UVD1].ucode_id = AMDGPU_UCODE_ID_UVD1;
                        adev->firmware.ucode[AMDGPU_UCODE_ID_UVD1].fw = adev->uvd.fw;
                        adev->firmware.fw_size +=
                                ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
                }
                drm_info(adev_to_drm(adev), "PSP loading UVD firmware\n");
        }

        for (j = 0; j < adev->uvd.num_uvd_inst; j++) {
                if (adev->uvd.harvest_config & (1 << j))
                        continue;
                if (!amdgpu_sriov_vf(adev)) {
                        ring = &adev->uvd.inst[j].ring;
                        ring->vm_hub = AMDGPU_MMHUB0(0);
                        sprintf(ring->name, "uvd_%d", ring->me);
                        r = amdgpu_ring_init(adev, ring, 512,
                                             &adev->uvd.inst[j].irq, 0,
                                             AMDGPU_RING_PRIO_DEFAULT, NULL);
                        if (r)
                                return r;
                }

                for (i = 0; i < adev->uvd.num_enc_rings; ++i) {
                        ring = &adev->uvd.inst[j].ring_enc[i];
                        ring->vm_hub = AMDGPU_MMHUB0(0);
                        sprintf(ring->name, "uvd_enc_%d.%d", ring->me, i);
                        if (amdgpu_sriov_vf(adev)) {
                                ring->use_doorbell = true;

                                /* currently only use the first enconding ring for
                                 * sriov, so set unused location for other unused rings.
                                 */
                                if (i == 0)
                                        ring->doorbell_index = adev->doorbell_index.uvd_vce.uvd_ring0_1 * 2;
                                else
                                        ring->doorbell_index = adev->doorbell_index.uvd_vce.uvd_ring2_3 * 2 + 1;
                        }
                        r = amdgpu_ring_init(adev, ring, 512,
                                             &adev->uvd.inst[j].irq, 0,
                                             AMDGPU_RING_PRIO_DEFAULT, NULL);
                        if (r)
                                return r;
                }
        }

        r = amdgpu_uvd_resume(adev);
        if (r)
                return r;

        r = amdgpu_virt_alloc_mm_table(adev);
        if (r)
                return r;

        return r;
}

static int uvd_v7_0_sw_fini(struct amdgpu_ip_block *ip_block)
{
        int i, j, r;
        struct amdgpu_device *adev = ip_block->adev;

        amdgpu_virt_free_mm_table(adev);

        r = amdgpu_uvd_suspend(adev);
        if (r)
                return r;

        for (j = 0; j < adev->uvd.num_uvd_inst; ++j) {
                if (adev->uvd.harvest_config & (1 << j))
                        continue;
                for (i = 0; i < adev->uvd.num_enc_rings; ++i)
                        amdgpu_ring_fini(&adev->uvd.inst[j].ring_enc[i]);
        }
        return amdgpu_uvd_sw_fini(adev);
}

/**
 * uvd_v7_0_hw_init - start and test UVD block
 *
 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
 *
 * Initialize the hardware, boot up the VCPU and do some testing
 */
static int uvd_v7_0_hw_init(struct amdgpu_ip_block *ip_block)
{
        struct amdgpu_device *adev = ip_block->adev;
        struct amdgpu_ring *ring;
        uint32_t tmp;
        int i, j, r;

        if (amdgpu_sriov_vf(adev))
                r = uvd_v7_0_sriov_start(adev);
        else
                r = uvd_v7_0_start(adev);
        if (r)
                goto done;

        for (j = 0; j < adev->uvd.num_uvd_inst; ++j) {
                if (adev->uvd.harvest_config & (1 << j))
                        continue;
                ring = &adev->uvd.inst[j].ring;

                if (!amdgpu_sriov_vf(adev)) {
                        r = amdgpu_ring_test_helper(ring);
                        if (r)
                                goto done;

                        r = amdgpu_ring_alloc(ring, 10);
                        if (r) {
                                drm_err(adev_to_drm(adev), "ring alloc failed (%d).\n", r);
                                goto done;
                        }

                        tmp = PACKET0(SOC15_REG_OFFSET(UVD, j,
                                mmUVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL), 0);
                        amdgpu_ring_write(ring, tmp);
                        amdgpu_ring_write(ring, 0xFFFFF);

                        tmp = PACKET0(SOC15_REG_OFFSET(UVD, j,
                                mmUVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL), 0);
                        amdgpu_ring_write(ring, tmp);
                        amdgpu_ring_write(ring, 0xFFFFF);

                        tmp = PACKET0(SOC15_REG_OFFSET(UVD, j,
                                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, j,
                                mmUVD_SEMA_TIMEOUT_STATUS), 0));
                        amdgpu_ring_write(ring, 0x8);

                        amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(UVD, j,
                                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.inst[j].ring_enc[i];
                        r = amdgpu_ring_test_helper(ring);
                        if (r)
                                goto done;
                }
        }
done:
        if (!r)
                drm_info(adev_to_drm(adev), "UVD and UVD ENC initialized successfully.\n");

        return r;
}

/**
 * uvd_v7_0_hw_fini - stop the hardware block
 *
 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
 *
 * Stop the UVD block, mark ring as not ready any more
 */
static int uvd_v7_0_hw_fini(struct amdgpu_ip_block *ip_block)
{
        struct amdgpu_device *adev = ip_block->adev;

        cancel_delayed_work_sync(&adev->uvd.idle_work);

        if (!amdgpu_sriov_vf(adev))
                uvd_v7_0_stop(adev);
        else {
                /* full access mode, so don't touch any UVD register */
                DRM_DEBUG("For SRIOV client, shouldn't do anything.\n");
        }

        return 0;
}

static int uvd_v7_0_prepare_suspend(struct amdgpu_ip_block *ip_block)
{
        struct amdgpu_device *adev = ip_block->adev;

        return amdgpu_uvd_prepare_suspend(adev);
}

static int uvd_v7_0_suspend(struct amdgpu_ip_block *ip_block)
{
        int r;
        struct amdgpu_device *adev = ip_block->adev;

        /*
         * Proper cleanups before halting the HW engine:
         *   - cancel the delayed idle work
         *   - enable powergating
         *   - enable clockgating
         *   - disable dpm
         *
         * TODO: to align with the VCN implementation, move the
         * jobs for clockgating/powergating/dpm setting to
         * ->set_powergating_state().
         */
        cancel_delayed_work_sync(&adev->uvd.idle_work);

        if (adev->pm.dpm_enabled) {
                amdgpu_dpm_enable_uvd(adev, false);
        } else {
                amdgpu_asic_set_uvd_clocks(adev, 0, 0);
                /* shutdown the UVD block */
                amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
                                                       AMD_PG_STATE_GATE);
                amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
                                                       AMD_CG_STATE_GATE);
        }

        r = uvd_v7_0_hw_fini(ip_block);
        if (r)
                return r;

        return amdgpu_uvd_suspend(adev);
}

static int uvd_v7_0_resume(struct amdgpu_ip_block *ip_block)
{
        int r;

        r = amdgpu_uvd_resume(ip_block->adev);
        if (r)
                return r;

        return uvd_v7_0_hw_init(ip_block);
}

/**
 * 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_UVD_FIRMWARE_SIZE(adev);
        uint32_t offset;
        int i;

        for (i = 0; i < adev->uvd.num_uvd_inst; ++i) {
                if (adev->uvd.harvest_config & (1 << i))
                        continue;
                if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
                        WREG32_SOC15(UVD, i, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
                                i == 0 ?
                                adev->firmware.ucode[AMDGPU_UCODE_ID_UVD].tmr_mc_addr_lo :
                                adev->firmware.ucode[AMDGPU_UCODE_ID_UVD1].tmr_mc_addr_lo);
                        WREG32_SOC15(UVD, i, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
                                i == 0 ?
                                adev->firmware.ucode[AMDGPU_UCODE_ID_UVD].tmr_mc_addr_hi :
                                adev->firmware.ucode[AMDGPU_UCODE_ID_UVD1].tmr_mc_addr_hi);
                        WREG32_SOC15(UVD, i, mmUVD_VCPU_CACHE_OFFSET0, 0);
                        offset = 0;
                } else {
                        WREG32_SOC15(UVD, i, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
                                lower_32_bits(adev->uvd.inst[i].gpu_addr));
                        WREG32_SOC15(UVD, i, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
                                upper_32_bits(adev->uvd.inst[i].gpu_addr));
                        offset = size;
                        WREG32_SOC15(UVD, i, mmUVD_VCPU_CACHE_OFFSET0,
                                        AMDGPU_UVD_FIRMWARE_OFFSET >> 3);
                }

                WREG32_SOC15(UVD, i, mmUVD_VCPU_CACHE_SIZE0, size);

                WREG32_SOC15(UVD, i, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
                                lower_32_bits(adev->uvd.inst[i].gpu_addr + offset));
                WREG32_SOC15(UVD, i, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
                                upper_32_bits(adev->uvd.inst[i].gpu_addr + offset));
                WREG32_SOC15(UVD, i, mmUVD_VCPU_CACHE_OFFSET1, (1 << 21));
                WREG32_SOC15(UVD, i, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_UVD_HEAP_SIZE);

                WREG32_SOC15(UVD, i, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
                                lower_32_bits(adev->uvd.inst[i].gpu_addr + offset + AMDGPU_UVD_HEAP_SIZE));
                WREG32_SOC15(UVD, i, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
                                upper_32_bits(adev->uvd.inst[i].gpu_addr + offset + AMDGPU_UVD_HEAP_SIZE));
                WREG32_SOC15(UVD, i, mmUVD_VCPU_CACHE_OFFSET2, (2 << 21));
                WREG32_SOC15(UVD, i, mmUVD_VCPU_CACHE_SIZE2,
                                AMDGPU_UVD_STACK_SIZE + (AMDGPU_UVD_SESSION_SIZE * 40));

                WREG32_SOC15(UVD, i, mmUVD_UDEC_ADDR_CONFIG,
                                adev->gfx.config.gb_addr_config);
                WREG32_SOC15(UVD, i, mmUVD_UDEC_DB_ADDR_CONFIG,
                                adev->gfx.config.gb_addr_config);
                WREG32_SOC15(UVD, i, mmUVD_UDEC_DBW_ADDR_CONFIG,
                                adev->gfx.config.gb_addr_config);

                WREG32_SOC15(UVD, i, mmUVD_GP_SCRATCH4, adev->uvd.max_handles);
        }
}

static int uvd_v7_0_mmsch_start(struct amdgpu_device *adev,
                                struct amdgpu_mm_table *table)
{
        uint32_t data = 0, loop;
        uint64_t addr = table->gpu_addr;
        struct mmsch_v1_0_init_header *header = (struct mmsch_v1_0_init_header *)table->cpu_addr;
        uint32_t size;
        int i;

        size = header->header_size + header->vce_table_size + header->uvd_table_size;

        /* 1, write to vce_mmsch_vf_ctx_addr_lo/hi register with GPU mc addr of memory descriptor location */
        WREG32_SOC15(VCE, 0, mmVCE_MMSCH_VF_CTX_ADDR_LO, lower_32_bits(addr));
        WREG32_SOC15(VCE, 0, mmVCE_MMSCH_VF_CTX_ADDR_HI, upper_32_bits(addr));

        /* 2, update vmid of descriptor */
        data = RREG32_SOC15(VCE, 0, mmVCE_MMSCH_VF_VMID);
        data &= ~VCE_MMSCH_VF_VMID__VF_CTX_VMID_MASK;
        data |= (0 << VCE_MMSCH_VF_VMID__VF_CTX_VMID__SHIFT); /* use domain0 for MM scheduler */
        WREG32_SOC15(VCE, 0, mmVCE_MMSCH_VF_VMID, data);

        /* 3, notify mmsch about the size of this descriptor */
        WREG32_SOC15(VCE, 0, mmVCE_MMSCH_VF_CTX_SIZE, size);

        /* 4, set resp to zero */
        WREG32_SOC15(VCE, 0, mmVCE_MMSCH_VF_MAILBOX_RESP, 0);

        for (i = 0; i < adev->uvd.num_uvd_inst; ++i) {
                if (adev->uvd.harvest_config & (1 << i))
                        continue;
                WDOORBELL32(adev->uvd.inst[i].ring_enc[0].doorbell_index, 0);
                *adev->uvd.inst[i].ring_enc[0].wptr_cpu_addr = 0;
                adev->uvd.inst[i].ring_enc[0].wptr = 0;
                adev->uvd.inst[i].ring_enc[0].wptr_old = 0;
        }
        /* 5, kick off the initialization and wait until VCE_MMSCH_VF_MAILBOX_RESP becomes non-zero */
        WREG32_SOC15(VCE, 0, mmVCE_MMSCH_VF_MAILBOX_HOST, 0x10000001);

        data = RREG32_SOC15(VCE, 0, mmVCE_MMSCH_VF_MAILBOX_RESP);
        loop = 1000;
        while ((data & 0x10000002) != 0x10000002) {
                udelay(10);
                data = RREG32_SOC15(VCE, 0, mmVCE_MMSCH_VF_MAILBOX_RESP);
                loop--;
                if (!loop)
                        break;
        }

        if (!loop) {
                dev_err(adev->dev, "failed to init MMSCH, mmVCE_MMSCH_VF_MAILBOX_RESP = %x\n", data);
                return -EBUSY;
        }

        return 0;
}

static int uvd_v7_0_sriov_start(struct amdgpu_device *adev)
{
        struct amdgpu_ring *ring;
        uint32_t offset, size, tmp;
        uint32_t table_size = 0;
        struct mmsch_v1_0_cmd_direct_write direct_wt = { {0} };
        struct mmsch_v1_0_cmd_direct_read_modify_write direct_rd_mod_wt = { {0} };
        struct mmsch_v1_0_cmd_direct_polling direct_poll = { {0} };
        struct mmsch_v1_0_cmd_end end = { {0} };
        uint32_t *init_table = adev->virt.mm_table.cpu_addr;
        struct mmsch_v1_0_init_header *header = (struct mmsch_v1_0_init_header *)init_table;
        uint8_t i = 0;

        direct_wt.cmd_header.command_type = MMSCH_COMMAND__DIRECT_REG_WRITE;
        direct_rd_mod_wt.cmd_header.command_type = MMSCH_COMMAND__DIRECT_REG_READ_MODIFY_WRITE;
        direct_poll.cmd_header.command_type = MMSCH_COMMAND__DIRECT_REG_POLLING;
        end.cmd_header.command_type = MMSCH_COMMAND__END;

        if (header->uvd_table_offset == 0 && header->uvd_table_size == 0) {
                header->version = MMSCH_VERSION;
                header->header_size = sizeof(struct mmsch_v1_0_init_header) >> 2;

                if (header->vce_table_offset == 0 && header->vce_table_size == 0)
                        header->uvd_table_offset = header->header_size;
                else
                        header->uvd_table_offset = header->vce_table_size + header->vce_table_offset;

                init_table += header->uvd_table_offset;

                for (i = 0; i < adev->uvd.num_uvd_inst; ++i) {
                        if (adev->uvd.harvest_config & (1 << i))
                                continue;
                        ring = &adev->uvd.inst[i].ring;
                        ring->wptr = 0;
                        size = AMDGPU_GPU_PAGE_ALIGN(adev->uvd.fw->size + 4);

                        MMSCH_V1_0_INSERT_DIRECT_RD_MOD_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_STATUS),
                                                           0xFFFFFFFF, 0x00000004);
                        /* mc resume*/
                        if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
                                MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i,
                                                        mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW),
                                                        adev->firmware.ucode[AMDGPU_UCODE_ID_UVD].tmr_mc_addr_lo);
                                MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i,
                                                        mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH),
                                                        adev->firmware.ucode[AMDGPU_UCODE_ID_UVD].tmr_mc_addr_hi);
                                MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0), 0);
                                offset = 0;
                        } else {
                                MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW),
                                                            lower_32_bits(adev->uvd.inst[i].gpu_addr));
                                MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH),
                                                            upper_32_bits(adev->uvd.inst[i].gpu_addr));
                                offset = size;
                                MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0),
                                                        AMDGPU_UVD_FIRMWARE_OFFSET >> 3);

                        }

                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_VCPU_CACHE_SIZE0), size);

                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW),
                                                    lower_32_bits(adev->uvd.inst[i].gpu_addr + offset));
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH),
                                                    upper_32_bits(adev->uvd.inst[i].gpu_addr + offset));
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_VCPU_CACHE_OFFSET1), (1 << 21));
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_VCPU_CACHE_SIZE1), AMDGPU_UVD_HEAP_SIZE);

                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW),
                                                    lower_32_bits(adev->uvd.inst[i].gpu_addr + offset + AMDGPU_UVD_HEAP_SIZE));
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH),
                                                    upper_32_bits(adev->uvd.inst[i].gpu_addr + offset + AMDGPU_UVD_HEAP_SIZE));
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_VCPU_CACHE_OFFSET2), (2 << 21));
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_VCPU_CACHE_SIZE2),
                                                    AMDGPU_UVD_STACK_SIZE + (AMDGPU_UVD_SESSION_SIZE * 40));

                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_GP_SCRATCH4), adev->uvd.max_handles);
                        /* mc resume end*/

                        /* disable clock gating */
                        MMSCH_V1_0_INSERT_DIRECT_RD_MOD_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_CGC_CTRL),
                                                           ~UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK, 0);

                        /* disable interupt */
                        MMSCH_V1_0_INSERT_DIRECT_RD_MOD_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_MASTINT_EN),
                                                           ~UVD_MASTINT_EN__VCPU_EN_MASK, 0);

                        /* stall UMC and register bus before resetting VCPU */
                        MMSCH_V1_0_INSERT_DIRECT_RD_MOD_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_LMI_CTRL2),
                                                           ~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK,
                                                           UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);

                        /* put LMI, VCPU, RBC etc... into reset */
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_SOFT_RESET),
                                                    (uint32_t)(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));

                        /* initialize UVD memory controller */
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_LMI_CTRL),
                                                    (uint32_t)((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));

                        /* take all subblocks out of reset, except VCPU */
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_SOFT_RESET),
                                                    UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);

                        /* enable VCPU clock */
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_VCPU_CNTL),
                                                    UVD_VCPU_CNTL__CLK_EN_MASK);

                        /* enable master interrupt */
                        MMSCH_V1_0_INSERT_DIRECT_RD_MOD_WT(SOC15_REG_OFFSET(UVD, i, 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 */
                        MMSCH_V1_0_INSERT_DIRECT_RD_MOD_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_STATUS),
                                                           ~(2 << UVD_STATUS__VCPU_REPORT__SHIFT), 0);

                        /* force RBC into idle state */
                        size = order_base_2(ring->ring_size);
                        tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, size);
                        tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_RBC_RB_CNTL), tmp);

                        ring = &adev->uvd.inst[i].ring_enc[0];
                        ring->wptr = 0;
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_RB_BASE_LO), ring->gpu_addr);
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_RB_BASE_HI), upper_32_bits(ring->gpu_addr));
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_RB_SIZE), ring->ring_size / 4);

                        /* boot up the VCPU */
                        MMSCH_V1_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_SOFT_RESET), 0);

                        /* enable UMC */
                        MMSCH_V1_0_INSERT_DIRECT_RD_MOD_WT(SOC15_REG_OFFSET(UVD, i, mmUVD_LMI_CTRL2),
                                                                                           ~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK, 0);

                        MMSCH_V1_0_INSERT_DIRECT_POLL(SOC15_REG_OFFSET(UVD, i, mmUVD_STATUS), 0x02, 0x02);
                }
                /* add end packet */
                memcpy((void *)init_table, &end, sizeof(struct mmsch_v1_0_cmd_end));
                table_size += sizeof(struct mmsch_v1_0_cmd_end) / 4;
                header->uvd_table_size = table_size;

        }
        return uvd_v7_0_mmsch_start(adev, &adev->virt.mm_table);
}

/**
 * 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;
        uint32_t rb_bufsz, tmp;
        uint32_t lmi_swap_cntl;
        uint32_t mp_swap_cntl;
        int i, j, k, r;

        for (k = 0; k < adev->uvd.num_uvd_inst; ++k) {
                if (adev->uvd.harvest_config & (1 << k))
                        continue;
                /* disable DPG */
                WREG32_P(SOC15_REG_OFFSET(UVD, k, 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);

        for (k = 0; k < adev->uvd.num_uvd_inst; ++k) {
                if (adev->uvd.harvest_config & (1 << k))
                        continue;
                ring = &adev->uvd.inst[k].ring;
                /* disable clock gating */
                WREG32_P(SOC15_REG_OFFSET(UVD, k, mmUVD_CGC_CTRL), 0,
                                ~UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK);

                /* disable interupt */
                WREG32_P(SOC15_REG_OFFSET(UVD, k, mmUVD_MASTINT_EN), 0,
                                ~UVD_MASTINT_EN__VCPU_EN_MASK);

                /* stall UMC and register bus before resetting VCPU */
                WREG32_P(SOC15_REG_OFFSET(UVD, k, 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(UVD, k, 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(UVD, k, 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(UVD, k, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl);
                WREG32_SOC15(UVD, k, mmUVD_MP_SWAP_CNTL, mp_swap_cntl);

                WREG32_SOC15(UVD, k, mmUVD_MPC_SET_MUXA0, 0x40c2040);
                WREG32_SOC15(UVD, k, mmUVD_MPC_SET_MUXA1, 0x0);
                WREG32_SOC15(UVD, k, mmUVD_MPC_SET_MUXB0, 0x40c2040);
                WREG32_SOC15(UVD, k, mmUVD_MPC_SET_MUXB1, 0x0);
                WREG32_SOC15(UVD, k, mmUVD_MPC_SET_ALU, 0);
                WREG32_SOC15(UVD, k, mmUVD_MPC_SET_MUX, 0x88);

                /* take all subblocks out of reset, except VCPU */
                WREG32_SOC15(UVD, k, mmUVD_SOFT_RESET,
                                UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
                mdelay(5);

                /* enable VCPU clock */
                WREG32_SOC15(UVD, k, mmUVD_VCPU_CNTL,
                                UVD_VCPU_CNTL__CLK_EN_MASK);

                /* enable UMC */
                WREG32_P(SOC15_REG_OFFSET(UVD, k, mmUVD_LMI_CTRL2), 0,
                                ~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);

                /* boot up the VCPU */
                WREG32_SOC15(UVD, k, mmUVD_SOFT_RESET, 0);
                mdelay(10);

                for (i = 0; i < 10; ++i) {
                        uint32_t status;

                        for (j = 0; j < 100; ++j) {
                                status = RREG32_SOC15(UVD, k, mmUVD_STATUS);
                                if (status & 2)
                                        break;
                                mdelay(10);
                        }
                        r = 0;
                        if (status & 2)
                                break;

                        DRM_ERROR("UVD(%d) not responding, trying to reset the VCPU!!!\n", k);
                        WREG32_P(SOC15_REG_OFFSET(UVD, k, 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, k, mmUVD_SOFT_RESET), 0,
                                        ~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
                        mdelay(10);
                        r = -1;
                }

                if (r) {
                        DRM_ERROR("UVD(%d) not responding, giving up!!!\n", k);
                        return r;
                }
                /* enable master interrupt */
                WREG32_P(SOC15_REG_OFFSET(UVD, k, 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, k, 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(UVD, k, mmUVD_RBC_RB_CNTL, tmp);

                /* set the write pointer delay */
                WREG32_SOC15(UVD, k, mmUVD_RBC_RB_WPTR_CNTL, 0);

                /* set the wb address */
                WREG32_SOC15(UVD, k, mmUVD_RBC_RB_RPTR_ADDR,
                                (upper_32_bits(ring->gpu_addr) >> 2));

                /* program the RB_BASE for ring buffer */
                WREG32_SOC15(UVD, k, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
                                lower_32_bits(ring->gpu_addr));
                WREG32_SOC15(UVD, k, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
                                upper_32_bits(ring->gpu_addr));

                /* Initialize the ring buffer's read and write pointers */
                WREG32_SOC15(UVD, k, mmUVD_RBC_RB_RPTR, 0);

                ring->wptr = RREG32_SOC15(UVD, k, mmUVD_RBC_RB_RPTR);
                WREG32_SOC15(UVD, k, mmUVD_RBC_RB_WPTR,
                                lower_32_bits(ring->wptr));

                WREG32_P(SOC15_REG_OFFSET(UVD, k, mmUVD_RBC_RB_CNTL), 0,
                                ~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);

                ring = &adev->uvd.inst[k].ring_enc[0];
                WREG32_SOC15(UVD, k, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
                WREG32_SOC15(UVD, k, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
                WREG32_SOC15(UVD, k, mmUVD_RB_BASE_LO, ring->gpu_addr);
                WREG32_SOC15(UVD, k, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
                WREG32_SOC15(UVD, k, mmUVD_RB_SIZE, ring->ring_size / 4);

                ring = &adev->uvd.inst[k].ring_enc[1];
                WREG32_SOC15(UVD, k, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
                WREG32_SOC15(UVD, k, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
                WREG32_SOC15(UVD, k, mmUVD_RB_BASE_LO2, ring->gpu_addr);
                WREG32_SOC15(UVD, k, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
                WREG32_SOC15(UVD, k, 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)
{
        uint8_t i = 0;

        for (i = 0; i < adev->uvd.num_uvd_inst; ++i) {
                if (adev->uvd.harvest_config & (1 << i))
                        continue;
                /* force RBC into idle state */
                WREG32_SOC15(UVD, i, mmUVD_RBC_RB_CNTL, 0x11010101);

                /* Stall UMC and register bus before resetting VCPU */
                WREG32_P(SOC15_REG_OFFSET(UVD, i, 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(UVD, i, mmUVD_SOFT_RESET,
                                UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
                mdelay(5);

                /* disable VCPU clock */
                WREG32_SOC15(UVD, i, mmUVD_VCPU_CNTL, 0x0);

                /* Unstall UMC and register bus */
                WREG32_P(SOC15_REG_OFFSET(UVD, i, 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
 * @addr: address
 * @seq: sequence number
 * @flags: fence related flags
 *
 * 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)
{
        struct amdgpu_device *adev = ring->adev;

        WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_CONTEXT_ID), 0));
        amdgpu_ring_write(ring, seq);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_GPCOM_VCPU_DATA0), 0));
        amdgpu_ring_write(ring, addr & 0xffffffff);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_GPCOM_VCPU_DATA1), 0));
        amdgpu_ring_write(ring, upper_32_bits(addr) & 0xff);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_GPCOM_VCPU_CMD), 0));
        amdgpu_ring_write(ring, 0);

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_GPCOM_VCPU_DATA0), 0));
        amdgpu_ring_write(ring, 0);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_GPCOM_VCPU_DATA1), 0));
        amdgpu_ring_write(ring, 0);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, 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
 * @addr: address
 * @seq: sequence number
 * @flags: fence related flags
 *
 * 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 - skip HDP flushing
 *
 * @ring: amdgpu_ring pointer
 */
static void uvd_v7_0_ring_emit_hdp_flush(struct amdgpu_ring *ring)
{
        /* The firmware doesn't seem to like touching registers at this point. */
}

/**
 * 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(UVD, ring->me, mmUVD_CONTEXT_ID, 0xCAFEDEAD);
        r = amdgpu_ring_alloc(ring, 3);
        if (r)
                return r;

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_CONTEXT_ID), 0));
        amdgpu_ring_write(ring, 0xDEADBEEF);
        amdgpu_ring_commit(ring);
        for (i = 0; i < adev->usec_timeout; i++) {
                tmp = RREG32_SOC15(UVD, ring->me, mmUVD_CONTEXT_ID);
                if (tmp == 0xDEADBEEF)
                        break;
                udelay(1);
        }

        if (i >= adev->usec_timeout)
                r = -ETIMEDOUT;

        return r;
}

/**
 * uvd_v7_0_ring_patch_cs_in_place - Patch the IB for command submission.
 *
 * @p: the CS parser with the IBs
 * @job: which job this ib is in
 * @ib: which IB to patch
 *
 */
static int uvd_v7_0_ring_patch_cs_in_place(struct amdgpu_cs_parser *p,
                                           struct amdgpu_job *job,
                                           struct amdgpu_ib *ib)
{
        struct amdgpu_ring *ring = amdgpu_job_ring(job);
        unsigned i;

        /* No patching necessary for the first instance */
        if (!ring->me)
                return 0;

        for (i = 0; i < ib->length_dw; i += 2) {
                uint32_t reg = amdgpu_ib_get_value(ib, i);

                reg -= p->adev->reg_offset[UVD_HWIP][0][1];
                reg += p->adev->reg_offset[UVD_HWIP][1][1];

                amdgpu_ib_set_value(ib, i, reg);
        }
        return 0;
}

/**
 * uvd_v7_0_ring_emit_ib - execute indirect buffer
 *
 * @ring: amdgpu_ring pointer
 * @job: job to retrieve vmid from
 * @ib: indirect buffer to execute
 * @flags: unused
 *
 * Write ring commands to execute the indirect buffer
 */
static void uvd_v7_0_ring_emit_ib(struct amdgpu_ring *ring,
                                  struct amdgpu_job *job,
                                  struct amdgpu_ib *ib,
                                  uint32_t flags)
{
        struct amdgpu_device *adev = ring->adev;
        unsigned vmid = AMDGPU_JOB_GET_VMID(job);

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_LMI_RBC_IB_VMID), 0));
        amdgpu_ring_write(ring, vmid);

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, 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, ring->me, 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, ring->me, 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
 * @job: job to retrive vmid from
 * @ib: indirect buffer to execute
 * @flags: unused
 *
 * Write enc ring commands to execute the indirect buffer
 */
static void uvd_v7_0_enc_ring_emit_ib(struct amdgpu_ring *ring,
                                        struct amdgpu_job *job,
                                        struct amdgpu_ib *ib,
                                        uint32_t flags)
{
        unsigned vmid = AMDGPU_JOB_GET_VMID(job);

        amdgpu_ring_write(ring, HEVC_ENC_CMD_IB_VM);
        amdgpu_ring_write(ring, vmid);
        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_ring_emit_wreg(struct amdgpu_ring *ring,
                                    uint32_t reg, uint32_t val)
{
        struct amdgpu_device *adev = ring->adev;

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_GPCOM_VCPU_DATA0), 0));
        amdgpu_ring_write(ring, reg << 2);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_GPCOM_VCPU_DATA1), 0));
        amdgpu_ring_write(ring, val);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_GPCOM_VCPU_CMD), 0));
        amdgpu_ring_write(ring, 8);
}

static void uvd_v7_0_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
                                        uint32_t val, uint32_t mask)
{
        struct amdgpu_device *adev = ring->adev;

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_GPCOM_VCPU_DATA0), 0));
        amdgpu_ring_write(ring, reg << 2);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_GPCOM_VCPU_DATA1), 0));
        amdgpu_ring_write(ring, val);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_GP_SCRATCH8), 0));
        amdgpu_ring_write(ring, mask);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_GPCOM_VCPU_CMD), 0));
        amdgpu_ring_write(ring, 12);
}

static void uvd_v7_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
                                        unsigned vmid, uint64_t pd_addr)
{
        struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->vm_hub];
        uint32_t data0, data1, mask;

        pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);

        /* wait for reg writes */
        data0 = hub->ctx0_ptb_addr_lo32 + vmid * hub->ctx_addr_distance;
        data1 = lower_32_bits(pd_addr);
        mask = 0xffffffff;
        uvd_v7_0_ring_emit_reg_wait(ring, data0, data1, mask);
}

static void uvd_v7_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
{
        struct amdgpu_device *adev = ring->adev;
        int i;

        WARN_ON(ring->wptr % 2 || count % 2);

        for (i = 0; i < count / 2; i++) {
                amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_NO_OP), 0));
                amdgpu_ring_write(ring, 0);
        }
}

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_reg_wait(struct amdgpu_ring *ring,
                                            uint32_t reg, uint32_t val,
                                            uint32_t mask)
{
        amdgpu_ring_write(ring, HEVC_ENC_CMD_REG_WAIT);
        amdgpu_ring_write(ring, reg << 2);
        amdgpu_ring_write(ring, mask);
        amdgpu_ring_write(ring, val);
}

static void uvd_v7_0_enc_ring_emit_vm_flush(struct amdgpu_ring *ring,
                                            unsigned int vmid, uint64_t pd_addr)
{
        struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->vm_hub];

        pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);

        /* wait for reg writes */
        uvd_v7_0_enc_ring_emit_reg_wait(ring, hub->ctx0_ptb_addr_lo32 +
                                        vmid * hub->ctx_addr_distance,
                                        lower_32_bits(pd_addr), 0xffffffff);
}

static void uvd_v7_0_enc_ring_emit_wreg(struct amdgpu_ring *ring,
                                        uint32_t reg, uint32_t val)
{
        amdgpu_ring_write(ring, HEVC_ENC_CMD_REG_WRITE);
        amdgpu_ring_write(ring, reg << 2);
        amdgpu_ring_write(ring, val);
}

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)
{
        uint32_t ip_instance;

        switch (entry->client_id) {
        case SOC15_IH_CLIENTID_UVD:
                ip_instance = 0;
                break;
        case SOC15_IH_CLIENTID_UVD1:
                ip_instance = 1;
                break;
        default:
                DRM_ERROR("Unhandled client id: %d\n", entry->client_id);
                return 0;
        }

        DRM_DEBUG("IH: UVD TRAP\n");

        switch (entry->src_id) {
        case 124:
                amdgpu_fence_process(&adev->uvd.inst[ip_instance].ring);
                break;
        case 119:
                amdgpu_fence_process(&adev->uvd.inst[ip_instance].ring_enc[0]);
                break;
        case 120:
                if (!amdgpu_sriov_vf(adev))
                        amdgpu_fence_process(&adev->uvd.inst[ip_instance].ring_enc[1]);
                break;
        default:
                DRM_ERROR("Unhandled interrupt: %d %d\n",
                          entry->src_id, entry->src_data[0]);
                break;
        }

        return 0;
}

static int uvd_v7_0_set_clockgating_state(struct amdgpu_ip_block *ip_block,
                                          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,
        .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,
        .prepare_suspend = uvd_v7_0_prepare_suspend,
        .suspend = uvd_v7_0_suspend,
        .resume = uvd_v7_0_resume,
        .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,
        .support_64bit_ptrs = false,
        .no_user_fence = true,
        .get_rptr = uvd_v7_0_ring_get_rptr,
        .get_wptr = uvd_v7_0_ring_get_wptr,
        .set_wptr = uvd_v7_0_ring_set_wptr,
        .patch_cs_in_place = uvd_v7_0_ring_patch_cs_in_place,
        .emit_frame_size =
                6 + /* hdp invalidate */
                SOC15_FLUSH_GPU_TLB_NUM_WREG * 6 +
                SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 8 +
                8 + /* 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,
        .test_ring = uvd_v7_0_ring_test_ring,
        .test_ib = amdgpu_uvd_ring_test_ib,
        .insert_nop = uvd_v7_0_ring_insert_nop,
        .pad_ib = amdgpu_ring_generic_pad_ib,
        .begin_use = amdgpu_uvd_ring_begin_use,
        .end_use = amdgpu_uvd_ring_end_use,
        .emit_wreg = uvd_v7_0_ring_emit_wreg,
        .emit_reg_wait = uvd_v7_0_ring_emit_reg_wait,
        .emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
};

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,
        .no_user_fence = true,
        .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 =
                3 + 3 + /* hdp flush / invalidate */
                SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
                SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 4 +
                4 + /* 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,
        .emit_wreg = uvd_v7_0_enc_ring_emit_wreg,
        .emit_reg_wait = uvd_v7_0_enc_ring_emit_reg_wait,
        .emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
};

static void uvd_v7_0_set_ring_funcs(struct amdgpu_device *adev)
{
        int i;

        for (i = 0; i < adev->uvd.num_uvd_inst; i++) {
                if (adev->uvd.harvest_config & (1 << i))
                        continue;
                adev->uvd.inst[i].ring.funcs = &uvd_v7_0_ring_vm_funcs;
                adev->uvd.inst[i].ring.me = i;
                drm_info(adev_to_drm(adev), "UVD(%d) is enabled in VM mode\n", i);
        }
}

static void uvd_v7_0_set_enc_ring_funcs(struct amdgpu_device *adev)
{
        int i, j;

        for (j = 0; j < adev->uvd.num_uvd_inst; j++) {
                if (adev->uvd.harvest_config & (1 << j))
                        continue;
                for (i = 0; i < adev->uvd.num_enc_rings; ++i) {
                        adev->uvd.inst[j].ring_enc[i].funcs = &uvd_v7_0_enc_ring_vm_funcs;
                        adev->uvd.inst[j].ring_enc[i].me = j;
                }

                drm_info(adev_to_drm(adev), "UVD(%d) ENC is enabled in VM mode\n", j);
        }
}

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)
{
        int i;

        for (i = 0; i < adev->uvd.num_uvd_inst; i++) {
                if (adev->uvd.harvest_config & (1 << i))
                        continue;
                adev->uvd.inst[i].irq.num_types = adev->uvd.num_enc_rings + 1;
                adev->uvd.inst[i].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,
};