[PATCH 11/18] drm/amdgpu: power vcn 2_5 by instance

Lazar, Lijo lijo.lazar at amd.com
Mon Oct 7 13:50:23 UTC 2024



On 10/7/2024 7:03 PM, Boyuan Zhang wrote:
> 
> On 2024-10-07 01:22, Lazar, Lijo wrote:
>>
>> On 10/5/2024 12:14 AM, boyuan.zhang at amd.com wrote:
>>> From: Boyuan Zhang <boyuan.zhang at amd.com>
>>>
>>> For vcn 2_5, add ip_block for each vcn instance during discovery stage.
>>>
>>> And only powering on/off one of the vcn instance using the
>>> instance value stored in ip_block, instead of powering on/off all
>>> vcn instances. Modify the existing functions to use the instance value
>>> in ip_block, and remove the original for loop for all vcn instances.
>>>
>>> v2: rename "i"/"j" to "inst" for instance value.
>>>
>>> Signed-off-by: Boyuan Zhang <boyuan.zhang at amd.com>
>>> ---
>>>   drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c |   4 +-
>>>   drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c         | 565 +++++++++---------
>>>   2 files changed, 280 insertions(+), 289 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
>>> index 9f9a1867da72..de1053cc2a2b 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
>>> @@ -2278,6 +2278,7 @@ static int
>>> amdgpu_discovery_set_sdma_ip_blocks(struct amdgpu_device *adev)
>>>     static int amdgpu_discovery_set_mm_ip_blocks(struct amdgpu_device
>>> *adev)
>>>   {
>>> +    int i;
>>>       if (amdgpu_ip_version(adev, VCE_HWIP, 0)) {
>>>           switch (amdgpu_ip_version(adev, UVD_HWIP, 0)) {
>>>           case IP_VERSION(7, 0, 0):
>>> @@ -2321,7 +2322,8 @@ static int
>>> amdgpu_discovery_set_mm_ip_blocks(struct amdgpu_device *adev)
>>>           case IP_VERSION(2, 0, 3):
>>>               break;
>>>           case IP_VERSION(2, 5, 0):
>>> -            amdgpu_device_ip_block_add(adev, &vcn_v2_5_ip_block);
>>> +            for (i = 0; i < adev->vcn.num_vcn_inst; ++i)
>>> +                amdgpu_device_ip_block_add(adev, &vcn_v2_5_ip_block);
>>
>> This introduces a totally confusing design now. At a higher level an IP
>> block type manages multiple instances and their power states. Now there
>> is a mix where no definition can be attributed to an IP block. Or, if
>> this were to be done uniformly for other IPs, then for some SOCs there
>> could be 16 SDMA blocks, 8 GFX blocks and so forth.
>>
>> What is the reason to do this way? Can't VCN IP block maintain the state
>> of multiple instances within itself?
>>
>> Thanks,
>> Lijo
> This is part of the fundamental design change for separating IP block
> per instance, in order to
> handle each instance separately within same IP block (e.g. separate
> power/clock management).
> 
> Part 1, Change all adev ptr handle to amdgpu_ip_block ptr in all
> callbacks (hw_init/fini, sw_init/fini,
> suspend, etc...) for all IP blocks, so that each IP knows which IP_block
> (and which instance) the
> callback is for. Most parts of this changes have been submitted by Sunil.
> 
> Part 2, Separate IP block per instance.
> 
> Part 3, Since callbacks can pass in IP_block now after Part 1 change and
> instance value can be
> obtained from each IP block in Part 2, IP can then choose to handle
> callbacks ONLY for the given
> instance of a given IP block (or still handling for all instances as
> before).
> For VCN, all callbacks will be handled only for the given one instance,
> instead of the original for-
> loop for all instance. As a result, each VCN instance can be
> start/stop/int/fini/suspend separately.
> 
> Part 4, Change all VCN helper functions to handle only the given
> instance, instead of the original
> for-loop for all instance.
> 
> Each instance can have its own states, so we think it makes more sense
> to separate them on IP
> block level to handle each of them separately.


Such a change should not be done unless all IPs follow the same design.
You didn't answer the question - what necessitates this change? What is
special about VCN that it cannot manage the states of multiple instances
within the IP block?

Thanks,
Lijo

> 
> Thanks,
> Boyuan
>>
>>>               amdgpu_device_ip_block_add(adev, &jpeg_v2_5_ip_block);
>>>               break;
>>>           case IP_VERSION(2, 6, 0):
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
>>> b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
>>> index d00df51bc400..1f8738ae360a 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
>>> @@ -158,35 +158,34 @@ static int vcn_v2_5_early_init(struct
>>> amdgpu_ip_block *ip_block)
>>>   static int vcn_v2_5_sw_init(struct amdgpu_ip_block *ip_block)
>>>   {
>>>       struct amdgpu_ring *ring;
>>> -    int i, j, r;
>>> +    int i, r;
>>>       uint32_t reg_count = ARRAY_SIZE(vcn_reg_list_2_5);
>>>       uint32_t *ptr;
>>>       struct amdgpu_device *adev = ip_block->adev;
>>> +    int inst = ip_block->instance;
>>>   -    for (j = 0; j < adev->vcn.num_vcn_inst; j++) {
>>> -        if (adev->vcn.harvest_config & (1 << j))
>>> -            continue;
>>> -        /* VCN DEC TRAP */
>>> -        r = amdgpu_irq_add_id(adev, amdgpu_ih_clientid_vcns[j],
>>> -                VCN_2_0__SRCID__UVD_SYSTEM_MESSAGE_INTERRUPT,
>>> &adev->vcn.inst[j].irq);
>>> -        if (r)
>>> -            return r;
>>> -
>>> -        /* VCN ENC TRAP */
>>> -        for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
>>> -            r = amdgpu_irq_add_id(adev, amdgpu_ih_clientid_vcns[j],
>>> -                i + VCN_2_0__SRCID__UVD_ENC_GENERAL_PURPOSE,
>>> &adev->vcn.inst[j].irq);
>>> -            if (r)
>>> -                return r;
>>> -        }
>>> +    if (adev->vcn.harvest_config & (1 << inst))
>>> +        goto sw_init;
>>> +    /* VCN DEC TRAP */
>>> +    r = amdgpu_irq_add_id(adev, amdgpu_ih_clientid_vcns[inst],
>>> +            VCN_2_0__SRCID__UVD_SYSTEM_MESSAGE_INTERRUPT,
>>> &adev->vcn.inst[inst].irq);
>>> +    if (r)
>>> +        return r;
>>>   -        /* VCN POISON TRAP */
>>> -        r = amdgpu_irq_add_id(adev, amdgpu_ih_clientid_vcns[j],
>>> -            VCN_2_6__SRCID_UVD_POISON,
>>> &adev->vcn.inst[j].ras_poison_irq);
>>> +    /* VCN ENC TRAP */
>>> +    for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
>>> +        r = amdgpu_irq_add_id(adev, amdgpu_ih_clientid_vcns[inst],
>>> +            i + VCN_2_0__SRCID__UVD_ENC_GENERAL_PURPOSE,
>>> &adev->vcn.inst[inst].irq);
>>>           if (r)
>>>               return r;
>>>       }
>>>   +    /* VCN POISON TRAP */
>>> +    r = amdgpu_irq_add_id(adev, amdgpu_ih_clientid_vcns[inst],
>>> +        VCN_2_6__SRCID_UVD_POISON,
>>> &adev->vcn.inst[inst].ras_poison_irq);
>>> +    if (r)
>>> +        return r;
>>> +sw_init:
>>>       r = amdgpu_vcn_sw_init(adev);
>>>       if (r)
>>>           return r;
>>> @@ -197,76 +196,74 @@ static int vcn_v2_5_sw_init(struct
>>> amdgpu_ip_block *ip_block)
>>>       if (r)
>>>           return r;
>>>   -    for (j = 0; j < adev->vcn.num_vcn_inst; j++) {
>>> -        volatile struct amdgpu_fw_shared *fw_shared;
>>> +    volatile struct amdgpu_fw_shared *fw_shared;
>>>   -        if (adev->vcn.harvest_config & (1 << j))
>>> -            continue;
>>> -        adev->vcn.internal.context_id =
>>> mmUVD_CONTEXT_ID_INTERNAL_OFFSET;
>>> -        adev->vcn.internal.ib_vmid =
>>> mmUVD_LMI_RBC_IB_VMID_INTERNAL_OFFSET;
>>> -        adev->vcn.internal.ib_bar_low =
>>> mmUVD_LMI_RBC_IB_64BIT_BAR_LOW_INTERNAL_OFFSET;
>>> -        adev->vcn.internal.ib_bar_high =
>>> mmUVD_LMI_RBC_IB_64BIT_BAR_HIGH_INTERNAL_OFFSET;
>>> -        adev->vcn.internal.ib_size = mmUVD_RBC_IB_SIZE_INTERNAL_OFFSET;
>>> -        adev->vcn.internal.gp_scratch8 =
>>> mmUVD_GP_SCRATCH8_INTERNAL_OFFSET;
>>> -
>>> -        adev->vcn.internal.scratch9 = mmUVD_SCRATCH9_INTERNAL_OFFSET;
>>> -        adev->vcn.inst[j].external.scratch9 = SOC15_REG_OFFSET(VCN,
>>> j, mmUVD_SCRATCH9);
>>> -        adev->vcn.internal.data0 =
>>> mmUVD_GPCOM_VCPU_DATA0_INTERNAL_OFFSET;
>>> -        adev->vcn.inst[j].external.data0 = SOC15_REG_OFFSET(VCN, j,
>>> mmUVD_GPCOM_VCPU_DATA0);
>>> -        adev->vcn.internal.data1 =
>>> mmUVD_GPCOM_VCPU_DATA1_INTERNAL_OFFSET;
>>> -        adev->vcn.inst[j].external.data1 = SOC15_REG_OFFSET(VCN, j,
>>> mmUVD_GPCOM_VCPU_DATA1);
>>> -        adev->vcn.internal.cmd = mmUVD_GPCOM_VCPU_CMD_INTERNAL_OFFSET;
>>> -        adev->vcn.inst[j].external.cmd = SOC15_REG_OFFSET(VCN, j,
>>> mmUVD_GPCOM_VCPU_CMD);
>>> -        adev->vcn.internal.nop = mmUVD_NO_OP_INTERNAL_OFFSET;
>>> -        adev->vcn.inst[j].external.nop = SOC15_REG_OFFSET(VCN, j,
>>> mmUVD_NO_OP);
>>> -
>>> -        ring = &adev->vcn.inst[j].ring_dec;
>>> +    if (adev->vcn.harvest_config & (1 << inst))
>>> +        goto done;
>>> +    adev->vcn.internal.context_id = mmUVD_CONTEXT_ID_INTERNAL_OFFSET;
>>> +    adev->vcn.internal.ib_vmid = mmUVD_LMI_RBC_IB_VMID_INTERNAL_OFFSET;
>>> +    adev->vcn.internal.ib_bar_low =
>>> mmUVD_LMI_RBC_IB_64BIT_BAR_LOW_INTERNAL_OFFSET;
>>> +    adev->vcn.internal.ib_bar_high =
>>> mmUVD_LMI_RBC_IB_64BIT_BAR_HIGH_INTERNAL_OFFSET;
>>> +    adev->vcn.internal.ib_size = mmUVD_RBC_IB_SIZE_INTERNAL_OFFSET;
>>> +    adev->vcn.internal.gp_scratch8 = mmUVD_GP_SCRATCH8_INTERNAL_OFFSET;
>>> +
>>> +    adev->vcn.internal.scratch9 = mmUVD_SCRATCH9_INTERNAL_OFFSET;
>>> +    adev->vcn.inst[inst].external.scratch9 = SOC15_REG_OFFSET(VCN,
>>> inst, mmUVD_SCRATCH9);
>>> +    adev->vcn.internal.data0 = mmUVD_GPCOM_VCPU_DATA0_INTERNAL_OFFSET;
>>> +    adev->vcn.inst[inst].external.data0 = SOC15_REG_OFFSET(VCN,
>>> inst, mmUVD_GPCOM_VCPU_DATA0);
>>> +    adev->vcn.internal.data1 = mmUVD_GPCOM_VCPU_DATA1_INTERNAL_OFFSET;
>>> +    adev->vcn.inst[inst].external.data1 = SOC15_REG_OFFSET(VCN,
>>> inst, mmUVD_GPCOM_VCPU_DATA1);
>>> +    adev->vcn.internal.cmd = mmUVD_GPCOM_VCPU_CMD_INTERNAL_OFFSET;
>>> +    adev->vcn.inst[inst].external.cmd = SOC15_REG_OFFSET(VCN, inst,
>>> mmUVD_GPCOM_VCPU_CMD);
>>> +    adev->vcn.internal.nop = mmUVD_NO_OP_INTERNAL_OFFSET;
>>> +    adev->vcn.inst[inst].external.nop = SOC15_REG_OFFSET(VCN, inst,
>>> mmUVD_NO_OP);
>>> +
>>> +    ring = &adev->vcn.inst[inst].ring_dec;
>>> +    ring->use_doorbell = true;
>>> +
>>> +    ring->doorbell_index = (adev->doorbell_index.vcn.vcn_ring0_1 <<
>>> 1) +
>>> +            (amdgpu_sriov_vf(adev) ? 2*inst : 8*inst);
>>> +
>>> +    if (amdgpu_ip_version(adev, UVD_HWIP, 0) == IP_VERSION(2, 5, 0))
>>> +        ring->vm_hub = AMDGPU_MMHUB1(0);
>>> +    else
>>> +        ring->vm_hub = AMDGPU_MMHUB0(0);
>>> +
>>> +    sprintf(ring->name, "vcn_dec_%d", inst);
>>> +    r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst[inst].irq,
>>> +                 0, AMDGPU_RING_PRIO_DEFAULT, NULL);
>>> +    if (r)
>>> +        return r;
>>> +
>>> +    for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
>>> +        enum amdgpu_ring_priority_level hw_prio =
>>> amdgpu_vcn_get_enc_ring_prio(i);
>>> +
>>> +        ring = &adev->vcn.inst[inst].ring_enc[i];
>>>           ring->use_doorbell = true;
>>>             ring->doorbell_index =
>>> (adev->doorbell_index.vcn.vcn_ring0_1 << 1) +
>>> -                (amdgpu_sriov_vf(adev) ? 2*j : 8*j);
>>> +                (amdgpu_sriov_vf(adev) ? (1 + i + 2*inst) : (2 + i +
>>> 8*inst));
>>>   -        if (amdgpu_ip_version(adev, UVD_HWIP, 0) == IP_VERSION(2,
>>> 5, 0))
>>> +        if (amdgpu_ip_version(adev, UVD_HWIP, 0) ==
>>> +            IP_VERSION(2, 5, 0))
>>>               ring->vm_hub = AMDGPU_MMHUB1(0);
>>>           else
>>>               ring->vm_hub = AMDGPU_MMHUB0(0);
>>>   -        sprintf(ring->name, "vcn_dec_%d", j);
>>> -        r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst[j].irq,
>>> -                     0, AMDGPU_RING_PRIO_DEFAULT, NULL);
>>> +        sprintf(ring->name, "vcn_enc_%d.%d", inst, i);
>>> +        r = amdgpu_ring_init(adev, ring, 512,
>>> +                     &adev->vcn.inst[inst].irq, 0,
>>> +                     hw_prio, NULL);
>>>           if (r)
>>>               return r;
>>> -
>>> -        for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
>>> -            enum amdgpu_ring_priority_level hw_prio =
>>> amdgpu_vcn_get_enc_ring_prio(i);
>>> -
>>> -            ring = &adev->vcn.inst[j].ring_enc[i];
>>> -            ring->use_doorbell = true;
>>> -
>>> -            ring->doorbell_index =
>>> (adev->doorbell_index.vcn.vcn_ring0_1 << 1) +
>>> -                    (amdgpu_sriov_vf(adev) ? (1 + i + 2*j) : (2 + i
>>> + 8*j));
>>> -
>>> -            if (amdgpu_ip_version(adev, UVD_HWIP, 0) ==
>>> -                IP_VERSION(2, 5, 0))
>>> -                ring->vm_hub = AMDGPU_MMHUB1(0);
>>> -            else
>>> -                ring->vm_hub = AMDGPU_MMHUB0(0);
>>> -
>>> -            sprintf(ring->name, "vcn_enc_%d.%d", j, i);
>>> -            r = amdgpu_ring_init(adev, ring, 512,
>>> -                         &adev->vcn.inst[j].irq, 0,
>>> -                         hw_prio, NULL);
>>> -            if (r)
>>> -                return r;
>>> -        }
>>> -
>>> -        fw_shared = adev->vcn.inst[j].fw_shared.cpu_addr;
>>> -        fw_shared->present_flag_0 =
>>> cpu_to_le32(AMDGPU_VCN_MULTI_QUEUE_FLAG);
>>> -
>>> -        if (amdgpu_vcnfw_log)
>>> -            amdgpu_vcn_fwlog_init(&adev->vcn.inst[i]);
>>>       }
>>>   +    fw_shared = adev->vcn.inst[inst].fw_shared.cpu_addr;
>>> +    fw_shared->present_flag_0 =
>>> cpu_to_le32(AMDGPU_VCN_MULTI_QUEUE_FLAG);
>>> +
>>> +    if (amdgpu_vcnfw_log)
>>> +        amdgpu_vcn_fwlog_init(&adev->vcn.inst[i]);
>>> +done:
>>>       if (amdgpu_sriov_vf(adev)) {
>>>           r = amdgpu_virt_alloc_mm_table(adev);
>>>           if (r)
>>> @@ -1005,197 +1002,192 @@ static int vcn_v2_5_start_dpg_mode(struct
>>> amdgpu_device *adev, int inst_idx, boo
>>>       return 0;
>>>   }
>>>   -static int vcn_v2_5_start(struct amdgpu_device *adev)
>>> +static int vcn_v2_5_start(struct amdgpu_device *adev, unsigned int
>>> inst)
>>>   {
>>>       struct amdgpu_ring *ring;
>>>       uint32_t rb_bufsz, tmp;
>>> -    int i, j, k, r;
>>> +    int j, k, r;
>>>   -    for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
>>> -        if (adev->pm.dpm_enabled)
>>> -            amdgpu_dpm_enable_vcn(adev, true, i);
>>> -    }
>>> -
>>> -    for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
>>> -        if (adev->vcn.harvest_config & (1 << i))
>>> -            continue;
>>> -        if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
>>> -            r = vcn_v2_5_start_dpg_mode(adev, i,
>>> adev->vcn.indirect_sram);
>>> -            continue;
>>> -        }
>>> +    if (adev->pm.dpm_enabled)
>>> +        amdgpu_dpm_enable_vcn(adev, true, inst);
>>>   -        /* disable register anti-hang mechanism */
>>> -        WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_POWER_STATUS), 0,
>>> -            ~UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
>>> +    if (adev->vcn.harvest_config & (1 << inst))
>>> +        return 0;
>>>   -        /* set uvd status busy */
>>> -        tmp = RREG32_SOC15(VCN, i, mmUVD_STATUS) |
>>> UVD_STATUS__UVD_BUSY;
>>> -        WREG32_SOC15(VCN, i, mmUVD_STATUS, tmp);
>>> +    if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
>>> +        r = vcn_v2_5_start_dpg_mode(adev, inst,
>>> adev->vcn.indirect_sram);
>>> +        return r;
>>>       }
>>>   +    /* disable register anti-hang mechanism */
>>> +    WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_POWER_STATUS), 0,
>>> +        ~UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
>>> +
>>> +    /* set uvd status busy */
>>> +    tmp = RREG32_SOC15(VCN, inst, mmUVD_STATUS) | UVD_STATUS__UVD_BUSY;
>>> +    WREG32_SOC15(VCN, inst, mmUVD_STATUS, tmp);
>>> +
>>>       if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
>>>           return 0;
>>>         /*SW clock gating */
>>>       vcn_v2_5_disable_clock_gating(adev);
>>>   -    for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
>>> -        if (adev->vcn.harvest_config & (1 << i))
>>> -            continue;
>>> -        /* enable VCPU clock */
>>> -        WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_VCPU_CNTL),
>>> -            UVD_VCPU_CNTL__CLK_EN_MASK, ~UVD_VCPU_CNTL__CLK_EN_MASK);
>>> -
>>> -        /* disable master interrupt */
>>> -        WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_MASTINT_EN), 0,
>>> -            ~UVD_MASTINT_EN__VCPU_EN_MASK);
>>> -
>>> -        /* setup mmUVD_LMI_CTRL */
>>> -        tmp = RREG32_SOC15(VCN, i, mmUVD_LMI_CTRL);
>>> -        tmp &= ~0xff;
>>> -        WREG32_SOC15(VCN, i, mmUVD_LMI_CTRL, tmp | 0x8|
>>> -            UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK    |
>>> -            UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
>>> -            UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
>>> -            UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK);
>>> -
>>> -        /* setup mmUVD_MPC_CNTL */
>>> -        tmp = RREG32_SOC15(VCN, i, mmUVD_MPC_CNTL);
>>> -        tmp &= ~UVD_MPC_CNTL__REPLACEMENT_MODE_MASK;
>>> -        tmp |= 0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT;
>>> -        WREG32_SOC15(VCN, i, mmUVD_MPC_CNTL, tmp);
>>> -
>>> -        /* setup UVD_MPC_SET_MUXA0 */
>>> -        WREG32_SOC15(VCN, i, mmUVD_MPC_SET_MUXA0,
>>> -            ((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
>>> -            (0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
>>> -            (0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
>>> -            (0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)));
>>> -
>>> -        /* setup UVD_MPC_SET_MUXB0 */
>>> -        WREG32_SOC15(VCN, i, mmUVD_MPC_SET_MUXB0,
>>> -            ((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
>>> -            (0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
>>> -            (0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
>>> -            (0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)));
>>> -
>>> -        /* setup mmUVD_MPC_SET_MUX */
>>> -        WREG32_SOC15(VCN, i, mmUVD_MPC_SET_MUX,
>>> -            ((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
>>> -            (0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
>>> -            (0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)));
>>> -    }
>>> +    if (adev->vcn.harvest_config & (1 << inst))
>>> +        return 0;
>>> +
>>> +    /* enable VCPU clock */
>>> +    WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_VCPU_CNTL),
>>> +        UVD_VCPU_CNTL__CLK_EN_MASK, ~UVD_VCPU_CNTL__CLK_EN_MASK);
>>> +
>>> +    /* disable master interrupt */
>>> +    WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_MASTINT_EN), 0,
>>> +        ~UVD_MASTINT_EN__VCPU_EN_MASK);
>>> +
>>> +    /* setup mmUVD_LMI_CTRL */
>>> +    tmp = RREG32_SOC15(VCN, inst, mmUVD_LMI_CTRL);
>>> +    tmp &= ~0xff;
>>> +    WREG32_SOC15(VCN, inst, mmUVD_LMI_CTRL, tmp | 0x8|
>>> +        UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK    |
>>> +        UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
>>> +        UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
>>> +        UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK);
>>> +
>>> +    /* setup mmUVD_MPC_CNTL */
>>> +    tmp = RREG32_SOC15(VCN, inst, mmUVD_MPC_CNTL);
>>> +    tmp &= ~UVD_MPC_CNTL__REPLACEMENT_MODE_MASK;
>>> +    tmp |= 0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT;
>>> +    WREG32_SOC15(VCN, inst, mmUVD_MPC_CNTL, tmp);
>>> +
>>> +    /* setup UVD_MPC_SET_MUXA0 */
>>> +    WREG32_SOC15(VCN, inst, mmUVD_MPC_SET_MUXA0,
>>> +        ((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
>>> +        (0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
>>> +        (0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
>>> +        (0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)));
>>> +
>>> +    /* setup UVD_MPC_SET_MUXB0 */
>>> +    WREG32_SOC15(VCN, inst, mmUVD_MPC_SET_MUXB0,
>>> +        ((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
>>> +        (0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
>>> +        (0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
>>> +        (0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)));
>>> +
>>> +    /* setup mmUVD_MPC_SET_MUX */
>>> +    WREG32_SOC15(VCN, inst, mmUVD_MPC_SET_MUX,
>>> +        ((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
>>> +        (0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
>>> +        (0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)));
>>>         vcn_v2_5_mc_resume(adev);
>>>   -    for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
>>> -        volatile struct amdgpu_fw_shared *fw_shared =
>>> adev->vcn.inst[i].fw_shared.cpu_addr;
>>> -        if (adev->vcn.harvest_config & (1 << i))
>>> -            continue;
>>> -        /* VCN global tiling registers */
>>> -        WREG32_SOC15(VCN, i, mmUVD_GFX8_ADDR_CONFIG,
>>> -            adev->gfx.config.gb_addr_config);
>>> -        WREG32_SOC15(VCN, i, mmUVD_GFX8_ADDR_CONFIG,
>>> -            adev->gfx.config.gb_addr_config);
>>> +    volatile struct amdgpu_fw_shared *fw_shared =
>>> adev->vcn.inst[inst].fw_shared.cpu_addr;
>>> +    if (adev->vcn.harvest_config & (1 << inst))
>>> +        return 0;
>>> +
>>> +    /* VCN global tiling registers */
>>> +    WREG32_SOC15(VCN, inst, mmUVD_GFX8_ADDR_CONFIG,
>>> +        adev->gfx.config.gb_addr_config);
>>> +    WREG32_SOC15(VCN, inst, mmUVD_GFX8_ADDR_CONFIG,
>>> +        adev->gfx.config.gb_addr_config);
>>>   -        /* enable LMI MC and UMC channels */
>>> -        WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_LMI_CTRL2), 0,
>>> -            ~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
>>> +    /* enable LMI MC and UMC channels */
>>> +    WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_LMI_CTRL2), 0,
>>> +        ~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
>>>   -        /* unblock VCPU register access */
>>> -        WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_RB_ARB_CTRL), 0,
>>> -            ~UVD_RB_ARB_CTRL__VCPU_DIS_MASK);
>>> +    /* unblock VCPU register access */
>>> +    WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_RB_ARB_CTRL), 0,
>>> +        ~UVD_RB_ARB_CTRL__VCPU_DIS_MASK);
>>>   -        WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_VCPU_CNTL), 0,
>>> -            ~UVD_VCPU_CNTL__BLK_RST_MASK);
>>> +    WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_VCPU_CNTL), 0,
>>> +        ~UVD_VCPU_CNTL__BLK_RST_MASK);
>>>   -        for (k = 0; k < 10; ++k) {
>>> -            uint32_t status;
>>> -
>>> -            for (j = 0; j < 100; ++j) {
>>> -                status = RREG32_SOC15(VCN, i, mmUVD_STATUS);
>>> -                if (status & 2)
>>> -                    break;
>>> -                if (amdgpu_emu_mode == 1)
>>> -                    msleep(500);
>>> -                else
>>> -                    mdelay(10);
>>> -            }
>>> -            r = 0;
>>> +    for (k = 0; k < 10; ++k) {
>>> +        uint32_t status;
>>> +
>>> +        for (j = 0; j < 100; ++j) {
>>> +            status = RREG32_SOC15(VCN, inst, mmUVD_STATUS);
>>>               if (status & 2)
>>>                   break;
>>> +            if (amdgpu_emu_mode == 1)
>>> +                msleep(500);
>>> +            else
>>> +                mdelay(10);
>>> +        }
>>> +        r = 0;
>>> +        if (status & 2)
>>> +            break;
>>>   -            DRM_ERROR("VCN decode not responding, trying to reset
>>> the VCPU!!!\n");
>>> -            WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_VCPU_CNTL),
>>> -                UVD_VCPU_CNTL__BLK_RST_MASK,
>>> -                ~UVD_VCPU_CNTL__BLK_RST_MASK);
>>> -            mdelay(10);
>>> -            WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_VCPU_CNTL), 0,
>>> -                ~UVD_VCPU_CNTL__BLK_RST_MASK);
>>> +        DRM_ERROR("VCN decode not responding, trying to reset the
>>> VCPU!!!\n");
>>> +        WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_VCPU_CNTL),
>>> +            UVD_VCPU_CNTL__BLK_RST_MASK,
>>> +            ~UVD_VCPU_CNTL__BLK_RST_MASK);
>>> +        mdelay(10);
>>> +        WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_VCPU_CNTL), 0,
>>> +            ~UVD_VCPU_CNTL__BLK_RST_MASK);
>>>   -            mdelay(10);
>>> -            r = -1;
>>> -        }
>>> +        mdelay(10);
>>> +        r = -1;
>>> +    }
>>>   -        if (r) {
>>> -            DRM_ERROR("VCN decode not responding, giving up!!!\n");
>>> -            return r;
>>> -        }
>>> +    if (r) {
>>> +        DRM_ERROR("VCN decode not responding, giving up!!!\n");
>>> +        return r;
>>> +    }
>>>   -        /* enable master interrupt */
>>> -        WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_MASTINT_EN),
>>> -            UVD_MASTINT_EN__VCPU_EN_MASK,
>>> -            ~UVD_MASTINT_EN__VCPU_EN_MASK);
>>> +    /* enable master interrupt */
>>> +    WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_MASTINT_EN),
>>> +        UVD_MASTINT_EN__VCPU_EN_MASK,
>>> +        ~UVD_MASTINT_EN__VCPU_EN_MASK);
>>>   -        /* clear the busy bit of VCN_STATUS */
>>> -        WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_STATUS), 0,
>>> -            ~(2 << UVD_STATUS__VCPU_REPORT__SHIFT));
>>> +    /* clear the busy bit of VCN_STATUS */
>>> +    WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_STATUS), 0,
>>> +        ~(2 << UVD_STATUS__VCPU_REPORT__SHIFT));
>>>   -        WREG32_SOC15(VCN, i, mmUVD_LMI_RBC_RB_VMID, 0);
>>> +    WREG32_SOC15(VCN, inst, mmUVD_LMI_RBC_RB_VMID, 0);
>>>   -        ring = &adev->vcn.inst[i].ring_dec;
>>> -        /* 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_NO_UPDATE, 1);
>>> -        tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
>>> -        WREG32_SOC15(VCN, i, mmUVD_RBC_RB_CNTL, tmp);
>>> +    ring = &adev->vcn.inst[inst].ring_dec;
>>> +    /* 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_NO_UPDATE, 1);
>>> +    tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
>>> +    WREG32_SOC15(VCN, inst, mmUVD_RBC_RB_CNTL, tmp);
>>>   -        fw_shared->multi_queue.decode_queue_mode |=
>>> FW_QUEUE_RING_RESET;
>>> -        /* program the RB_BASE for ring buffer */
>>> -        WREG32_SOC15(VCN, i, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
>>> -            lower_32_bits(ring->gpu_addr));
>>> -        WREG32_SOC15(VCN, i, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
>>> -            upper_32_bits(ring->gpu_addr));
>>> +    fw_shared->multi_queue.decode_queue_mode |= FW_QUEUE_RING_RESET;
>>> +    /* program the RB_BASE for ring buffer */
>>> +    WREG32_SOC15(VCN, inst, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
>>> +        lower_32_bits(ring->gpu_addr));
>>> +    WREG32_SOC15(VCN, inst, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
>>> +        upper_32_bits(ring->gpu_addr));
>>>   -        /* Initialize the ring buffer's read and write pointers */
>>> -        WREG32_SOC15(VCN, i, mmUVD_RBC_RB_RPTR, 0);
>>> +    /* Initialize the ring buffer's read and write pointers */
>>> +    WREG32_SOC15(VCN, inst, mmUVD_RBC_RB_RPTR, 0);
>>>   -        ring->wptr = RREG32_SOC15(VCN, i, mmUVD_RBC_RB_RPTR);
>>> -        WREG32_SOC15(VCN, i, mmUVD_RBC_RB_WPTR,
>>> -                lower_32_bits(ring->wptr));
>>> -        fw_shared->multi_queue.decode_queue_mode &=
>>> ~FW_QUEUE_RING_RESET;
>>> +    ring->wptr = RREG32_SOC15(VCN, inst, mmUVD_RBC_RB_RPTR);
>>> +    WREG32_SOC15(VCN, inst, mmUVD_RBC_RB_WPTR,
>>> +            lower_32_bits(ring->wptr));
>>> +    fw_shared->multi_queue.decode_queue_mode &= ~FW_QUEUE_RING_RESET;
>>>   -        fw_shared->multi_queue.encode_generalpurpose_queue_mode |=
>>> FW_QUEUE_RING_RESET;
>>> -        ring = &adev->vcn.inst[i].ring_enc[0];
>>> -        WREG32_SOC15(VCN, i, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
>>> -        WREG32_SOC15(VCN, i, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
>>> -        WREG32_SOC15(VCN, i, mmUVD_RB_BASE_LO, ring->gpu_addr);
>>> -        WREG32_SOC15(VCN, i, mmUVD_RB_BASE_HI,
>>> upper_32_bits(ring->gpu_addr));
>>> -        WREG32_SOC15(VCN, i, mmUVD_RB_SIZE, ring->ring_size / 4);
>>> -        fw_shared->multi_queue.encode_generalpurpose_queue_mode &=
>>> ~FW_QUEUE_RING_RESET;
>>> -
>>> -        fw_shared->multi_queue.encode_lowlatency_queue_mode |=
>>> FW_QUEUE_RING_RESET;
>>> -        ring = &adev->vcn.inst[i].ring_enc[1];
>>> -        WREG32_SOC15(VCN, i, mmUVD_RB_RPTR2,
>>> lower_32_bits(ring->wptr));
>>> -        WREG32_SOC15(VCN, i, mmUVD_RB_WPTR2,
>>> lower_32_bits(ring->wptr));
>>> -        WREG32_SOC15(VCN, i, mmUVD_RB_BASE_LO2, ring->gpu_addr);
>>> -        WREG32_SOC15(VCN, i, mmUVD_RB_BASE_HI2,
>>> upper_32_bits(ring->gpu_addr));
>>> -        WREG32_SOC15(VCN, i, mmUVD_RB_SIZE2, ring->ring_size / 4);
>>> -        fw_shared->multi_queue.encode_lowlatency_queue_mode &=
>>> ~FW_QUEUE_RING_RESET;
>>> -    }
>>> +    fw_shared->multi_queue.encode_generalpurpose_queue_mode |=
>>> FW_QUEUE_RING_RESET;
>>> +    ring = &adev->vcn.inst[inst].ring_enc[0];
>>> +    WREG32_SOC15(VCN, inst, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
>>> +    WREG32_SOC15(VCN, inst, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
>>> +    WREG32_SOC15(VCN, inst, mmUVD_RB_BASE_LO, ring->gpu_addr);
>>> +    WREG32_SOC15(VCN, inst, mmUVD_RB_BASE_HI,
>>> upper_32_bits(ring->gpu_addr));
>>> +    WREG32_SOC15(VCN, inst, mmUVD_RB_SIZE, ring->ring_size / 4);
>>> +    fw_shared->multi_queue.encode_generalpurpose_queue_mode &=
>>> ~FW_QUEUE_RING_RESET;
>>> +
>>> +    fw_shared->multi_queue.encode_lowlatency_queue_mode |=
>>> FW_QUEUE_RING_RESET;
>>> +    ring = &adev->vcn.inst[inst].ring_enc[1];
>>> +    WREG32_SOC15(VCN, inst, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
>>> +    WREG32_SOC15(VCN, inst, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
>>> +    WREG32_SOC15(VCN, inst, mmUVD_RB_BASE_LO2, ring->gpu_addr);
>>> +    WREG32_SOC15(VCN, inst, mmUVD_RB_BASE_HI2,
>>> upper_32_bits(ring->gpu_addr));
>>> +    WREG32_SOC15(VCN, inst, mmUVD_RB_SIZE2, ring->ring_size / 4);
>>> +    fw_shared->multi_queue.encode_lowlatency_queue_mode &=
>>> ~FW_QUEUE_RING_RESET;
>>>         return 0;
>>>   }
>>> @@ -1424,72 +1416,69 @@ static int vcn_v2_5_stop_dpg_mode(struct
>>> amdgpu_device *adev, int inst_idx)
>>>       return 0;
>>>   }
>>>   -static int vcn_v2_5_stop(struct amdgpu_device *adev)
>>> +static int vcn_v2_5_stop(struct amdgpu_device *adev, unsigned int inst)
>>>   {
>>>       uint32_t tmp;
>>> -    int i, r = 0;
>>> +    int r = 0;
>>>   -    for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
>>> -        if (adev->vcn.harvest_config & (1 << i))
>>> -            continue;
>>> -        if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
>>> -            r = vcn_v2_5_stop_dpg_mode(adev, i);
>>> -            continue;
>>> -        }
>>> +    if (adev->vcn.harvest_config & (1 << inst))
>>> +        goto done;
>>>   -        /* wait for vcn idle */
>>> -        r = SOC15_WAIT_ON_RREG(VCN, i, mmUVD_STATUS,
>>> UVD_STATUS__IDLE, 0x7);
>>> -        if (r)
>>> -            return r;
>>> +    if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
>>> +        r = vcn_v2_5_stop_dpg_mode(adev, inst);
>>> +        goto done;
>>> +    }
>>>   -        tmp = UVD_LMI_STATUS__VCPU_LMI_WRITE_CLEAN_MASK |
>>> -            UVD_LMI_STATUS__READ_CLEAN_MASK |
>>> -            UVD_LMI_STATUS__WRITE_CLEAN_MASK |
>>> -            UVD_LMI_STATUS__WRITE_CLEAN_RAW_MASK;
>>> -        r = SOC15_WAIT_ON_RREG(VCN, i, mmUVD_LMI_STATUS, tmp, tmp);
>>> -        if (r)
>>> -            return r;
>>> +    /* wait for vcn idle */
>>> +    r = SOC15_WAIT_ON_RREG(VCN, inst, mmUVD_STATUS,
>>> UVD_STATUS__IDLE, 0x7);
>>> +    if (r)
>>> +        return r;
>>>   -        /* block LMI UMC channel */
>>> -        tmp = RREG32_SOC15(VCN, i, mmUVD_LMI_CTRL2);
>>> -        tmp |= UVD_LMI_CTRL2__STALL_ARB_UMC_MASK;
>>> -        WREG32_SOC15(VCN, i, mmUVD_LMI_CTRL2, tmp);
>>> +    tmp = UVD_LMI_STATUS__VCPU_LMI_WRITE_CLEAN_MASK |
>>> +        UVD_LMI_STATUS__READ_CLEAN_MASK |
>>> +        UVD_LMI_STATUS__WRITE_CLEAN_MASK |
>>> +        UVD_LMI_STATUS__WRITE_CLEAN_RAW_MASK;
>>> +    r = SOC15_WAIT_ON_RREG(VCN, inst, mmUVD_LMI_STATUS, tmp, tmp);
>>> +    if (r)
>>> +        return r;
>>>   -        tmp = UVD_LMI_STATUS__UMC_READ_CLEAN_RAW_MASK|
>>> -            UVD_LMI_STATUS__UMC_WRITE_CLEAN_RAW_MASK;
>>> -        r = SOC15_WAIT_ON_RREG(VCN, i, mmUVD_LMI_STATUS, tmp, tmp);
>>> -        if (r)
>>> -            return r;
>>> +    /* block LMI UMC channel */
>>> +    tmp = RREG32_SOC15(VCN, inst, mmUVD_LMI_CTRL2);
>>> +    tmp |= UVD_LMI_CTRL2__STALL_ARB_UMC_MASK;
>>> +    WREG32_SOC15(VCN, inst, mmUVD_LMI_CTRL2, tmp);
>>>   -        /* block VCPU register access */
>>> -        WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_RB_ARB_CTRL),
>>> -            UVD_RB_ARB_CTRL__VCPU_DIS_MASK,
>>> -            ~UVD_RB_ARB_CTRL__VCPU_DIS_MASK);
>>> +    tmp = UVD_LMI_STATUS__UMC_READ_CLEAN_RAW_MASK|
>>> +        UVD_LMI_STATUS__UMC_WRITE_CLEAN_RAW_MASK;
>>> +    r = SOC15_WAIT_ON_RREG(VCN, inst, mmUVD_LMI_STATUS, tmp, tmp);
>>> +    if (r)
>>> +        return r;
>>>   -        /* reset VCPU */
>>> -        WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_VCPU_CNTL),
>>> -            UVD_VCPU_CNTL__BLK_RST_MASK,
>>> -            ~UVD_VCPU_CNTL__BLK_RST_MASK);
>>> +    /* block VCPU register access */
>>> +    WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_RB_ARB_CTRL),
>>> +        UVD_RB_ARB_CTRL__VCPU_DIS_MASK,
>>> +        ~UVD_RB_ARB_CTRL__VCPU_DIS_MASK);
>>>   -        /* disable VCPU clock */
>>> -        WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_VCPU_CNTL), 0,
>>> -            ~(UVD_VCPU_CNTL__CLK_EN_MASK));
>>> +    /* reset VCPU */
>>> +    WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_VCPU_CNTL),
>>> +        UVD_VCPU_CNTL__BLK_RST_MASK,
>>> +        ~UVD_VCPU_CNTL__BLK_RST_MASK);
>>>   -        /* clear status */
>>> -        WREG32_SOC15(VCN, i, mmUVD_STATUS, 0);
>>> +    /* disable VCPU clock */
>>> +    WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_VCPU_CNTL), 0,
>>> +        ~(UVD_VCPU_CNTL__CLK_EN_MASK));
>>>   -        vcn_v2_5_enable_clock_gating(adev);
>>> +    /* clear status */
>>> +    WREG32_SOC15(VCN, inst, mmUVD_STATUS, 0);
>>>   -        /* enable register anti-hang mechanism */
>>> -        WREG32_P(SOC15_REG_OFFSET(VCN, i, mmUVD_POWER_STATUS),
>>> -            UVD_POWER_STATUS__UVD_POWER_STATUS_MASK,
>>> -            ~UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
>>> -    }
>>> +    vcn_v2_5_enable_clock_gating(adev);
>>>   -    for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
>>> -        if (adev->pm.dpm_enabled)
>>> -            amdgpu_dpm_enable_vcn(adev, false, i);
>>> -    }
>>> +    /* enable register anti-hang mechanism */
>>> +    WREG32_P(SOC15_REG_OFFSET(VCN, inst, mmUVD_POWER_STATUS),
>>> +        UVD_POWER_STATUS__UVD_POWER_STATUS_MASK,
>>> +        ~UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
>>> +done:
>>> +    if (adev->pm.dpm_enabled)
>>> +        amdgpu_dpm_enable_vcn(adev, false, inst);
>>>         return 0;
>>>   }
>>> @@ -1838,9 +1827,9 @@ static int
>>> vcn_v2_5_set_powergating_state(struct amdgpu_ip_block *ip_block,
>>>           return 0;
>>>         if (state == AMD_PG_STATE_GATE)
>>> -        ret = vcn_v2_5_stop(adev);
>>> +        ret = vcn_v2_5_stop(adev, inst);
>>>       else
>>> -        ret = vcn_v2_5_start(adev);
>>> +        ret = vcn_v2_5_start(adev, inst);
>>>         if (!ret)
>>>           adev->vcn.cur_state[inst] = state;


More information about the amd-gfx mailing list