From: Boyuan Zhang <boyuan.zh...@amd.com>

For vcn 4_0_3, 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.zh...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c |   3 +-
 drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c       | 462 +++++++++---------
 2 files changed, 228 insertions(+), 237 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index 54b70255bdfe..084bd487b934 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -2351,7 +2351,8 @@ static int amdgpu_discovery_set_mm_ip_blocks(struct 
amdgpu_device *adev)
                        amdgpu_device_ip_block_add(adev, &jpeg_v4_0_ip_block);
                        break;
                case IP_VERSION(4, 0, 3):
-                       amdgpu_device_ip_block_add(adev, &vcn_v4_0_3_ip_block);
+                       for (i = 0; i < adev->vcn.num_vcn_inst; ++i)
+                               amdgpu_device_ip_block_add(adev, 
&vcn_v4_0_3_ip_block);
                        amdgpu_device_ip_block_add(adev, &jpeg_v4_0_3_ip_block);
                        break;
                case IP_VERSION(4, 0, 5):
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c 
b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
index deb13a376c6d..97e3b10ba414 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
@@ -127,7 +127,7 @@ static int vcn_v4_0_3_sw_init(struct amdgpu_ip_block 
*ip_block)
 {
        struct amdgpu_device *adev = ip_block->adev;
        struct amdgpu_ring *ring;
-       int i, r, vcn_inst;
+       int inst = ip_block->instance, r, vcn_inst;
        uint32_t reg_count = ARRAY_SIZE(vcn_reg_list_4_0_3);
        uint32_t *ptr;
 
@@ -147,38 +147,36 @@ static int vcn_v4_0_3_sw_init(struct amdgpu_ip_block 
*ip_block)
        if (r)
                return r;
 
-       for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
-               volatile struct amdgpu_vcn4_fw_shared *fw_shared;
+       volatile struct amdgpu_vcn4_fw_shared *fw_shared;
 
-               vcn_inst = GET_INST(VCN, i);
+       vcn_inst = GET_INST(VCN, inst);
 
-               ring = &adev->vcn.inst[i].ring_enc[0];
-               ring->use_doorbell = true;
-
-               if (!amdgpu_sriov_vf(adev))
-                       ring->doorbell_index =
-                               (adev->doorbell_index.vcn.vcn_ring0_1 << 1) +
-                               9 * vcn_inst;
-               else
-                       ring->doorbell_index =
-                               (adev->doorbell_index.vcn.vcn_ring0_1 << 1) +
-                               32 * vcn_inst;
-
-               ring->vm_hub = AMDGPU_MMHUB0(adev->vcn.inst[i].aid_id);
-               sprintf(ring->name, "vcn_unified_%d", adev->vcn.inst[i].aid_id);
-               r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,
-                                    AMDGPU_RING_PRIO_DEFAULT,
-                                    &adev->vcn.inst[i].sched_score);
-               if (r)
-                       return r;
+       ring = &adev->vcn.inst[inst].ring_enc[0];
+       ring->use_doorbell = true;
 
-               fw_shared = adev->vcn.inst[i].fw_shared.cpu_addr;
-               fw_shared->present_flag_0 = 
cpu_to_le32(AMDGPU_FW_SHARED_FLAG_0_UNIFIED_QUEUE);
-               fw_shared->sq.is_enabled = true;
+       if (!amdgpu_sriov_vf(adev))
+               ring->doorbell_index =
+                       (adev->doorbell_index.vcn.vcn_ring0_1 << 1) +
+                       9 * vcn_inst;
+       else
+               ring->doorbell_index =
+                       (adev->doorbell_index.vcn.vcn_ring0_1 << 1) +
+                       32 * vcn_inst;
+
+       ring->vm_hub = AMDGPU_MMHUB0(adev->vcn.inst[inst].aid_id);
+       sprintf(ring->name, "vcn_unified_%d", adev->vcn.inst[inst].aid_id);
+       r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,
+                                AMDGPU_RING_PRIO_DEFAULT,
+                                &adev->vcn.inst[inst].sched_score);
+       if (r)
+               return r;
 
-               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_FW_SHARED_FLAG_0_UNIFIED_QUEUE);
+       fw_shared->sq.is_enabled = true;
+
+       if (amdgpu_vcnfw_log)
+               amdgpu_vcn_fwlog_init(&adev->vcn.inst[inst]);
 
        if (amdgpu_sriov_vf(adev)) {
                r = amdgpu_virt_alloc_mm_table(adev);
@@ -1085,174 +1083,170 @@ static int vcn_v4_0_3_start_sriov(struct 
amdgpu_device *adev)
  *
  * Start VCN block
  */
-static int vcn_v4_0_3_start(struct amdgpu_device *adev)
+static int vcn_v4_0_3_start(struct amdgpu_device *adev, unsigned int inst)
 {
        volatile struct amdgpu_vcn4_fw_shared *fw_shared;
        struct amdgpu_ring *ring;
-       int i, j, k, r, vcn_inst;
+       int j, k, r, vcn_inst;
        uint32_t tmp;
 
-       for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
-               if (adev->pm.dpm_enabled)
-                       amdgpu_dpm_enable_vcn(adev, true, i);
+       if (adev->pm.dpm_enabled)
+               amdgpu_dpm_enable_vcn(adev, true, inst);
+
+       if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
+               r = vcn_v4_0_3_start_dpg_mode(adev, inst, 
adev->vcn.indirect_sram);
+               return r;
        }
 
-       for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
-               if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
-                       r = vcn_v4_0_3_start_dpg_mode(adev, i, 
adev->vcn.indirect_sram);
-                       continue;
-               }
+       vcn_inst = GET_INST(VCN, inst);
+       /* set VCN status busy */
+       tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_STATUS) |
+                 UVD_STATUS__UVD_BUSY;
+       WREG32_SOC15(VCN, vcn_inst, regUVD_STATUS, tmp);
 
-               vcn_inst = GET_INST(VCN, i);
-               /* set VCN status busy */
-               tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_STATUS) |
-                     UVD_STATUS__UVD_BUSY;
-               WREG32_SOC15(VCN, vcn_inst, regUVD_STATUS, tmp);
-
-               /*SW clock gating */
-               vcn_v4_0_3_disable_clock_gating(adev, i);
-
-               /* enable VCPU clock */
-               WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_VCPU_CNTL),
-                        UVD_VCPU_CNTL__CLK_EN_MASK,
-                        ~UVD_VCPU_CNTL__CLK_EN_MASK);
-
-               /* disable master interrupt */
-               WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_MASTINT_EN), 0,
-                        ~UVD_MASTINT_EN__VCPU_EN_MASK);
-
-               /* enable LMI MC and UMC channels */
-               WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_LMI_CTRL2), 0,
-                        ~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
-
-               tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_SOFT_RESET);
-               tmp &= ~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK;
-               tmp &= ~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK;
-               WREG32_SOC15(VCN, vcn_inst, regUVD_SOFT_RESET, tmp);
-
-               /* setup regUVD_LMI_CTRL */
-               tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_LMI_CTRL);
-               WREG32_SOC15(VCN, vcn_inst, regUVD_LMI_CTRL,
-                            tmp | UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
-                                    UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
-                                    UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
-                                    UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK);
-
-               /* setup regUVD_MPC_CNTL */
-               tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_MPC_CNTL);
-               tmp &= ~UVD_MPC_CNTL__REPLACEMENT_MODE_MASK;
-               tmp |= 0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT;
-               WREG32_SOC15(VCN, vcn_inst, regUVD_MPC_CNTL, tmp);
-
-               /* setup UVD_MPC_SET_MUXA0 */
-               WREG32_SOC15(VCN, vcn_inst, regUVD_MPC_SET_MUXA0,
-                            ((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
-                             (0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
-                             (0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
-                             (0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)));
-
-               /* setup UVD_MPC_SET_MUXB0 */
-               WREG32_SOC15(VCN, vcn_inst, regUVD_MPC_SET_MUXB0,
-                            ((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
-                             (0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
-                             (0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
-                             (0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)));
-
-               /* setup UVD_MPC_SET_MUX */
-               WREG32_SOC15(VCN, vcn_inst, regUVD_MPC_SET_MUX,
-                            ((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
-                             (0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
-                             (0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)));
-
-               vcn_v4_0_3_mc_resume(adev, i);
-
-               /* VCN global tiling registers */
-               WREG32_SOC15(VCN, vcn_inst, regUVD_GFX8_ADDR_CONFIG,
-                            adev->gfx.config.gb_addr_config);
-               WREG32_SOC15(VCN, vcn_inst, regUVD_GFX10_ADDR_CONFIG,
-                            adev->gfx.config.gb_addr_config);
-
-               /* unblock VCPU register access */
-               WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_RB_ARB_CTRL), 0,
-                        ~UVD_RB_ARB_CTRL__VCPU_DIS_MASK);
-
-               /* release VCPU reset to boot */
-               WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_VCPU_CNTL), 0,
-                        ~UVD_VCPU_CNTL__BLK_RST_MASK);
+       /*SW clock gating */
+       vcn_v4_0_3_disable_clock_gating(adev, inst);
+
+       /* enable VCPU clock */
+       WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_VCPU_CNTL),
+                UVD_VCPU_CNTL__CLK_EN_MASK,
+                ~UVD_VCPU_CNTL__CLK_EN_MASK);
 
-               for (j = 0; j < 10; ++j) {
-                       uint32_t status;
+       /* disable master interrupt */
+       WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_MASTINT_EN), 0,
+                ~UVD_MASTINT_EN__VCPU_EN_MASK);
 
-                       for (k = 0; k < 100; ++k) {
-                               status = RREG32_SOC15(VCN, vcn_inst,
-                                                     regUVD_STATUS);
-                               if (status & 2)
-                                       break;
-                               mdelay(10);
-                       }
-                       r = 0;
-                       if (status & 2)
-                               break;
+       /* enable LMI MC and UMC channels */
+       WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_LMI_CTRL2), 0,
+                ~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
 
-                       DRM_DEV_ERROR(adev->dev,
-                               "VCN decode not responding, trying to reset the 
VCPU!!!\n");
-                       WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst,
-                                                 regUVD_VCPU_CNTL),
-                                UVD_VCPU_CNTL__BLK_RST_MASK,
-                                ~UVD_VCPU_CNTL__BLK_RST_MASK);
-                       mdelay(10);
-                       WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst,
-                                                 regUVD_VCPU_CNTL),
-                                0, ~UVD_VCPU_CNTL__BLK_RST_MASK);
+       tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_SOFT_RESET);
+       tmp &= ~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK;
+       tmp &= ~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK;
+       WREG32_SOC15(VCN, vcn_inst, regUVD_SOFT_RESET, tmp);
+
+       /* setup regUVD_LMI_CTRL */
+       tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_LMI_CTRL);
+       WREG32_SOC15(VCN, vcn_inst, regUVD_LMI_CTRL,
+                        tmp | UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
+                                UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
+                                UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
+                                UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK);
+
+       /* setup regUVD_MPC_CNTL */
+       tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_MPC_CNTL);
+       tmp &= ~UVD_MPC_CNTL__REPLACEMENT_MODE_MASK;
+       tmp |= 0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT;
+       WREG32_SOC15(VCN, vcn_inst, regUVD_MPC_CNTL, tmp);
+
+       /* setup UVD_MPC_SET_MUXA0 */
+       WREG32_SOC15(VCN, vcn_inst, regUVD_MPC_SET_MUXA0,
+                        ((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
+                         (0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
+                         (0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
+                         (0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)));
+
+       /* setup UVD_MPC_SET_MUXB0 */
+       WREG32_SOC15(VCN, vcn_inst, regUVD_MPC_SET_MUXB0,
+                        ((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
+                         (0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
+                         (0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
+                         (0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)));
+
+       /* setup UVD_MPC_SET_MUX */
+       WREG32_SOC15(VCN, vcn_inst, regUVD_MPC_SET_MUX,
+                        ((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
+                         (0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
+                         (0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)));
+
+       vcn_v4_0_3_mc_resume(adev, inst);
+
+       /* VCN global tiling registers */
+       WREG32_SOC15(VCN, vcn_inst, regUVD_GFX8_ADDR_CONFIG,
+                        adev->gfx.config.gb_addr_config);
+       WREG32_SOC15(VCN, vcn_inst, regUVD_GFX10_ADDR_CONFIG,
+                        adev->gfx.config.gb_addr_config);
+
+       /* unblock VCPU register access */
+       WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_RB_ARB_CTRL), 0,
+                ~UVD_RB_ARB_CTRL__VCPU_DIS_MASK);
+
+       /* release VCPU reset to boot */
+       WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_VCPU_CNTL), 0,
+                ~UVD_VCPU_CNTL__BLK_RST_MASK);
 
+       for (j = 0; j < 10; ++j) {
+               uint32_t status;
+
+               for (k = 0; k < 100; ++k) {
+                       status = RREG32_SOC15(VCN, vcn_inst,
+                                                 regUVD_STATUS);
+                       if (status & 2)
+                               break;
                        mdelay(10);
-                       r = -1;
                }
+               r = 0;
+               if (status & 2)
+                       break;
 
-               if (r) {
-                       DRM_DEV_ERROR(adev->dev, "VCN decode not responding, 
giving up!!!\n");
-                       return r;
-               }
+               DRM_DEV_ERROR(adev->dev,
+                       "VCN decode not responding, trying to reset the 
VCPU!!!\n");
+               WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst,
+                                         regUVD_VCPU_CNTL),
+                        UVD_VCPU_CNTL__BLK_RST_MASK,
+                        ~UVD_VCPU_CNTL__BLK_RST_MASK);
+               mdelay(10);
+               WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst,
+                                         regUVD_VCPU_CNTL),
+                        0, ~UVD_VCPU_CNTL__BLK_RST_MASK);
 
-               /* enable master interrupt */
-               WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_MASTINT_EN),
-                        UVD_MASTINT_EN__VCPU_EN_MASK,
-                        ~UVD_MASTINT_EN__VCPU_EN_MASK);
+               mdelay(10);
+               r = -1;
+       }
 
-               /* clear the busy bit of VCN_STATUS */
-               WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_STATUS), 0,
-                        ~(2 << UVD_STATUS__VCPU_REPORT__SHIFT));
+       if (r) {
+               DRM_DEV_ERROR(adev->dev, "VCN decode not responding, giving 
up!!!\n");
+               return r;
+       }
 
-               ring = &adev->vcn.inst[i].ring_enc[0];
-               fw_shared = adev->vcn.inst[i].fw_shared.cpu_addr;
+       /* enable master interrupt */
+       WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_MASTINT_EN),
+                UVD_MASTINT_EN__VCPU_EN_MASK,
+                ~UVD_MASTINT_EN__VCPU_EN_MASK);
 
-               /* program the RB_BASE for ring buffer */
-               WREG32_SOC15(VCN, vcn_inst, regUVD_RB_BASE_LO,
-                            lower_32_bits(ring->gpu_addr));
-               WREG32_SOC15(VCN, vcn_inst, regUVD_RB_BASE_HI,
-                            upper_32_bits(ring->gpu_addr));
+       /* clear the busy bit of VCN_STATUS */
+       WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_STATUS), 0,
+                ~(2 << UVD_STATUS__VCPU_REPORT__SHIFT));
 
-               WREG32_SOC15(VCN, vcn_inst, regUVD_RB_SIZE,
-                            ring->ring_size / sizeof(uint32_t));
+       ring = &adev->vcn.inst[inst].ring_enc[0];
+       fw_shared = adev->vcn.inst[inst].fw_shared.cpu_addr;
 
-               /* resetting ring, fw should not check RB ring */
-               tmp = RREG32_SOC15(VCN, vcn_inst, regVCN_RB_ENABLE);
-               tmp &= ~(VCN_RB_ENABLE__RB_EN_MASK);
-               WREG32_SOC15(VCN, vcn_inst, regVCN_RB_ENABLE, tmp);
+       /* program the RB_BASE for ring buffer */
+       WREG32_SOC15(VCN, vcn_inst, regUVD_RB_BASE_LO,
+                        lower_32_bits(ring->gpu_addr));
+       WREG32_SOC15(VCN, vcn_inst, regUVD_RB_BASE_HI,
+                        upper_32_bits(ring->gpu_addr));
 
-               /* Initialize the ring buffer's read and write pointers */
-               WREG32_SOC15(VCN, vcn_inst, regUVD_RB_RPTR, 0);
-               WREG32_SOC15(VCN, vcn_inst, regUVD_RB_WPTR, 0);
+       WREG32_SOC15(VCN, vcn_inst, regUVD_RB_SIZE,
+                        ring->ring_size / sizeof(uint32_t));
 
-               tmp = RREG32_SOC15(VCN, vcn_inst, regVCN_RB_ENABLE);
-               tmp |= VCN_RB_ENABLE__RB_EN_MASK;
-               WREG32_SOC15(VCN, vcn_inst, regVCN_RB_ENABLE, tmp);
+       /* resetting ring, fw should not check RB ring */
+       tmp = RREG32_SOC15(VCN, vcn_inst, regVCN_RB_ENABLE);
+       tmp &= ~(VCN_RB_ENABLE__RB_EN_MASK);
+       WREG32_SOC15(VCN, vcn_inst, regVCN_RB_ENABLE, tmp);
 
-               ring->wptr = RREG32_SOC15(VCN, vcn_inst, regUVD_RB_WPTR);
-               fw_shared->sq.queue_mode &=
-                       cpu_to_le32(~(FW_QUEUE_RING_RESET | 
FW_QUEUE_DPG_HOLD_OFF));
+       /* Initialize the ring buffer's read and write pointers */
+       WREG32_SOC15(VCN, vcn_inst, regUVD_RB_RPTR, 0);
+       WREG32_SOC15(VCN, vcn_inst, regUVD_RB_WPTR, 0);
+
+       tmp = RREG32_SOC15(VCN, vcn_inst, regVCN_RB_ENABLE);
+       tmp |= VCN_RB_ENABLE__RB_EN_MASK;
+       WREG32_SOC15(VCN, vcn_inst, regVCN_RB_ENABLE, tmp);
+
+       ring->wptr = RREG32_SOC15(VCN, vcn_inst, regUVD_RB_WPTR);
+       fw_shared->sq.queue_mode &=
+               cpu_to_le32(~(FW_QUEUE_RING_RESET | FW_QUEUE_DPG_HOLD_OFF));
 
-       }
        return 0;
 }
 
@@ -1295,83 +1289,79 @@ static int vcn_v4_0_3_stop_dpg_mode(struct 
amdgpu_device *adev, int inst_idx)
  *
  * Stop VCN block
  */
-static int vcn_v4_0_3_stop(struct amdgpu_device *adev)
+static int vcn_v4_0_3_stop(struct amdgpu_device *adev, unsigned int inst)
 {
        volatile struct amdgpu_vcn4_fw_shared *fw_shared;
-       int i, r = 0, vcn_inst;
+       int r = 0, vcn_inst;
        uint32_t tmp;
 
-       for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
-               vcn_inst = GET_INST(VCN, i);
+       vcn_inst = GET_INST(VCN, inst);
 
-               fw_shared = adev->vcn.inst[i].fw_shared.cpu_addr;
-               fw_shared->sq.queue_mode |= FW_QUEUE_DPG_HOLD_OFF;
+       fw_shared = adev->vcn.inst[inst].fw_shared.cpu_addr;
+       fw_shared->sq.queue_mode |= FW_QUEUE_DPG_HOLD_OFF;
 
-               if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
-                       vcn_v4_0_3_stop_dpg_mode(adev, i);
-                       continue;
-               }
+       if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
+               vcn_v4_0_3_stop_dpg_mode(adev, inst);
+               goto Done;
+       }
 
-               /* wait for vcn idle */
-               r = SOC15_WAIT_ON_RREG(VCN, vcn_inst, regUVD_STATUS,
-                                      UVD_STATUS__IDLE, 0x7);
-               if (r)
-                       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, vcn_inst, regUVD_LMI_STATUS, tmp,
-                                      tmp);
-               if (r)
-                       goto Done;
-
-               /* stall UMC channel */
-               tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_LMI_CTRL2);
-               tmp |= UVD_LMI_CTRL2__STALL_ARB_UMC_MASK;
-               WREG32_SOC15(VCN, vcn_inst, regUVD_LMI_CTRL2, tmp);
-               tmp = UVD_LMI_STATUS__UMC_READ_CLEAN_RAW_MASK |
-                       UVD_LMI_STATUS__UMC_WRITE_CLEAN_RAW_MASK;
-               r = SOC15_WAIT_ON_RREG(VCN, vcn_inst, regUVD_LMI_STATUS, tmp,
-                                      tmp);
-               if (r)
-                       goto Done;
+       /* wait for vcn idle */
+       r = SOC15_WAIT_ON_RREG(VCN, vcn_inst, regUVD_STATUS,
+                                  UVD_STATUS__IDLE, 0x7);
+       if (r)
+               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, vcn_inst, regUVD_LMI_STATUS, tmp,
+                                  tmp);
+       if (r)
+               goto Done;
+
+       /* stall UMC channel */
+       tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_LMI_CTRL2);
+       tmp |= UVD_LMI_CTRL2__STALL_ARB_UMC_MASK;
+       WREG32_SOC15(VCN, vcn_inst, regUVD_LMI_CTRL2, tmp);
+       tmp = UVD_LMI_STATUS__UMC_READ_CLEAN_RAW_MASK |
+               UVD_LMI_STATUS__UMC_WRITE_CLEAN_RAW_MASK;
+       r = SOC15_WAIT_ON_RREG(VCN, vcn_inst, regUVD_LMI_STATUS, tmp,
+                                  tmp);
+       if (r)
+               goto Done;
 
-               /* Unblock VCPU Register access */
-               WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_RB_ARB_CTRL),
-                        UVD_RB_ARB_CTRL__VCPU_DIS_MASK,
-                        ~UVD_RB_ARB_CTRL__VCPU_DIS_MASK);
+       /* Unblock VCPU Register access */
+       WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_RB_ARB_CTRL),
+                UVD_RB_ARB_CTRL__VCPU_DIS_MASK,
+                ~UVD_RB_ARB_CTRL__VCPU_DIS_MASK);
 
-               /* release VCPU reset to boot */
-               WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_VCPU_CNTL),
-                        UVD_VCPU_CNTL__BLK_RST_MASK,
-                        ~UVD_VCPU_CNTL__BLK_RST_MASK);
+       /* release VCPU reset to boot */
+       WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_VCPU_CNTL),
+                UVD_VCPU_CNTL__BLK_RST_MASK,
+                ~UVD_VCPU_CNTL__BLK_RST_MASK);
 
-               /* disable VCPU clock */
-               WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_VCPU_CNTL), 0,
-                        ~(UVD_VCPU_CNTL__CLK_EN_MASK));
+       /* disable VCPU clock */
+       WREG32_P(SOC15_REG_OFFSET(VCN, vcn_inst, regUVD_VCPU_CNTL), 0,
+                ~(UVD_VCPU_CNTL__CLK_EN_MASK));
 
-               /* reset LMI UMC/LMI/VCPU */
-               tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_SOFT_RESET);
-               tmp |= UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK;
-               WREG32_SOC15(VCN, vcn_inst, regUVD_SOFT_RESET, tmp);
+       /* reset LMI UMC/LMI/VCPU */
+       tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_SOFT_RESET);
+       tmp |= UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK;
+       WREG32_SOC15(VCN, vcn_inst, regUVD_SOFT_RESET, tmp);
 
-               tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_SOFT_RESET);
-               tmp |= UVD_SOFT_RESET__LMI_SOFT_RESET_MASK;
-               WREG32_SOC15(VCN, vcn_inst, regUVD_SOFT_RESET, tmp);
+       tmp = RREG32_SOC15(VCN, vcn_inst, regUVD_SOFT_RESET);
+       tmp |= UVD_SOFT_RESET__LMI_SOFT_RESET_MASK;
+       WREG32_SOC15(VCN, vcn_inst, regUVD_SOFT_RESET, tmp);
 
-               /* clear VCN status */
-               WREG32_SOC15(VCN, vcn_inst, regUVD_STATUS, 0);
+       /* clear VCN status */
+       WREG32_SOC15(VCN, vcn_inst, regUVD_STATUS, 0);
 
-               /* apply HW clock gating */
-               vcn_v4_0_3_enable_clock_gating(adev, i);
-       }
+       /* apply HW clock gating */
+       vcn_v4_0_3_enable_clock_gating(adev, inst);
 Done:
-       for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
-               if (adev->pm.dpm_enabled)
-                       amdgpu_dpm_enable_vcn(adev, false, i);
-       }
+       if (adev->pm.dpm_enabled)
+               amdgpu_dpm_enable_vcn(adev, false, inst);
 
        return 0;
 }
@@ -1644,9 +1634,9 @@ static int vcn_v4_0_3_set_powergating_state(struct 
amdgpu_ip_block *ip_block,
                return 0;
 
        if (state == AMD_PG_STATE_GATE)
-               ret = vcn_v4_0_3_stop(adev);
+               ret = vcn_v4_0_3_stop(adev, inst);
        else
-               ret = vcn_v4_0_3_start(adev);
+               ret = vcn_v4_0_3_start(adev, inst);
 
        if (!ret)
                adev->vcn.cur_state[inst] = state;
-- 
2.34.1

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