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<p><font face="Times New Roman, Times, serif">Hi Sonny,</font></p>
<p><font face="Times New Roman, Times, serif">Just realized that it
has a bug since vcn2.5.</font></p>
<p><font face="Times New Roman, Times, serif">You need add
cpu_to_le32 for all fw_shared's value. like.<br>
</font></p>
<pre class="moz-quote-pre" wrap=""><font face="Times New Roman, Times, serif">fw_shared->multi_queue.decode_queue_mode |= cpu_to_le32(~<font color="#cb7979"><u>FW_QUEUE_RING_RESET);
</u></font>With this fix, This patch is Reviewed-by: James Zhu <a class="moz-txt-link-rfc2396E" href="mailto:James.Zhu@amd.com"><James.Zhu@amd.com></a>
Best Regards!
James<font color="#cb7979"><u>
</u></font></font></pre>
<font face="Times New Roman, Times, serif">
</font>
<div class="moz-cite-prefix">On 2020-12-03 6:10 p.m., Sonny Jiang
wrote:<br>
</div>
<blockquote type="cite" cite="mid:20201203231011.3165-1-sonny.jiang@amd.com">
<pre class="moz-quote-pre" wrap="">Add firmware write/read point reset sync through shared memory, port from vcn2.5.
Signed-off-by: Sonny Jiang <a class="moz-txt-link-rfc2396E" href="mailto:sonny.jiang@amd.com"><sonny.jiang@amd.com></a>
---
drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
index 4f718ee803d0..aa1c92de7a80 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
@@ -237,7 +237,8 @@ static int vcn_v3_0_sw_init(void *handle)
}
fw_shared = adev->vcn.inst[i].fw_shared_cpu_addr;
- fw_shared->present_flag_0 |= cpu_to_le32(AMDGPU_VCN_SW_RING_FLAG);
+ fw_shared->present_flag_0 |= cpu_to_le32(AMDGPU_VCN_SW_RING_FLAG) |
+ cpu_to_le32(AMDGPU_VCN_MULTI_QUEUE_FLAG);
fw_shared->sw_ring.is_enabled = cpu_to_le32(DEC_SW_RING_ENABLED);
}
@@ -935,6 +936,7 @@ static void vcn_v3_0_enable_clock_gating(struct amdgpu_device *adev, int inst)
static int vcn_v3_0_start_dpg_mode(struct amdgpu_device *adev, int inst_idx, bool indirect)
{
+ volatile struct amdgpu_fw_shared *fw_shared = adev->vcn.inst[inst_idx].fw_shared_cpu_addr;
struct amdgpu_ring *ring;
uint32_t rb_bufsz, tmp;
@@ -1048,6 +1050,7 @@ static int vcn_v3_0_start_dpg_mode(struct amdgpu_device *adev, int inst_idx, boo
WREG32_P(SOC15_REG_OFFSET(VCN, inst_idx, mmUVD_POWER_STATUS),
UVD_POWER_STATUS__STALL_DPG_POWER_UP_MASK,
~UVD_POWER_STATUS__STALL_DPG_POWER_UP_MASK);
+ fw_shared->multi_queue.decode_queue_mode |= FW_QUEUE_RING_RESET;
/* set the write pointer delay */
WREG32_SOC15(VCN, inst_idx, mmUVD_RBC_RB_WPTR_CNTL, 0);
@@ -1071,6 +1074,7 @@ static int vcn_v3_0_start_dpg_mode(struct amdgpu_device *adev, int inst_idx, boo
WREG32_SOC15(VCN, inst_idx, mmUVD_RBC_RB_WPTR,
lower_32_bits(ring->wptr));
+ fw_shared->multi_queue.decode_queue_mode &= ~FW_QUEUE_RING_RESET;
/* Unstall DPG */
WREG32_P(SOC15_REG_OFFSET(VCN, inst_idx, mmUVD_POWER_STATUS),
0, ~UVD_POWER_STATUS__STALL_DPG_POWER_UP_MASK);
@@ -1080,6 +1084,7 @@ static int vcn_v3_0_start_dpg_mode(struct amdgpu_device *adev, int inst_idx, boo
static int vcn_v3_0_start(struct amdgpu_device *adev)
{
+ volatile struct amdgpu_fw_shared *fw_shared;
struct amdgpu_ring *ring;
uint32_t rb_bufsz, tmp;
int i, j, k, r;
@@ -1222,6 +1227,9 @@ static int vcn_v3_0_start(struct amdgpu_device *adev)
tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
WREG32_SOC15(VCN, i, mmUVD_RBC_RB_CNTL, tmp);
+ fw_shared = adev->vcn.inst[i].fw_shared_cpu_addr;
+ fw_shared->multi_queue.decode_queue_mode |= FW_QUEUE_RING_RESET;
+
/* programm the RB_BASE for ring buffer */
WREG32_SOC15(VCN, i, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
lower_32_bits(ring->gpu_addr));
@@ -1234,19 +1242,25 @@ static int vcn_v3_0_start(struct amdgpu_device *adev)
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;
+
+ 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;
}
return 0;
@@ -1595,6 +1609,7 @@ static int vcn_v3_0_stop(struct amdgpu_device *adev)
static int vcn_v3_0_pause_dpg_mode(struct amdgpu_device *adev,
int inst_idx, struct dpg_pause_state *new_state)
{
+ volatile struct amdgpu_fw_shared *fw_shared;
struct amdgpu_ring *ring;
uint32_t reg_data = 0;
int ret_code;
@@ -1626,6 +1641,8 @@ static int vcn_v3_0_pause_dpg_mode(struct amdgpu_device *adev,
~UVD_POWER_STATUS__STALL_DPG_POWER_UP_MASK);
/* Restore */
+ fw_shared = adev->vcn.inst[inst_idx].fw_shared_cpu_addr;
+ fw_shared->multi_queue.encode_generalpurpose_queue_mode |= FW_QUEUE_RING_RESET;
ring = &adev->vcn.inst[inst_idx].ring_enc[0];
ring->wptr = 0;
WREG32_SOC15(VCN, inst_idx, mmUVD_RB_BASE_LO, ring->gpu_addr);
@@ -1633,7 +1650,9 @@ static int vcn_v3_0_pause_dpg_mode(struct amdgpu_device *adev,
WREG32_SOC15(VCN, inst_idx, mmUVD_RB_SIZE, ring->ring_size / 4);
WREG32_SOC15(VCN, inst_idx, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
WREG32_SOC15(VCN, inst_idx, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
+ 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_idx].ring_enc[1];
ring->wptr = 0;
WREG32_SOC15(VCN, inst_idx, mmUVD_RB_BASE_LO2, ring->gpu_addr);
@@ -1641,6 +1660,7 @@ static int vcn_v3_0_pause_dpg_mode(struct amdgpu_device *adev,
WREG32_SOC15(VCN, inst_idx, mmUVD_RB_SIZE2, ring->ring_size / 4);
WREG32_SOC15(VCN, inst_idx, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
WREG32_SOC15(VCN, inst_idx, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
+ fw_shared->multi_queue.encode_lowlatency_queue_mode &= ~FW_QUEUE_RING_RESET;
/* Unstall DPG */
WREG32_P(SOC15_REG_OFFSET(VCN, inst_idx, mmUVD_POWER_STATUS),
</pre>
</blockquote>
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