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drm/amdgpu: fix PTE copy corruption for sdma 7

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Without setting dcc bit, there is ramdon PTE copy corruption on sdma 7.

so add this bit and update the packet format accordingly.

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Frank Min <Frank.Min@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.11.x
This commit is contained in:
Frank Min
2024-09-25 11:39:06 +08:00
committed by Alex Deucher
parent d52ac79053
commit 3cb576bc6d
1 changed files with 5 additions and 2 deletions
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drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
+5 -2
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@@ -1080,13 +1080,16 @@ static void sdma_v7_0_vm_copy_pte(struct amdgpu_ib *ib,
unsigned bytes = count * 8;
ib->ptr[ib->length_dw++] = SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_COPY) |
SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR) |
SDMA_PKT_COPY_LINEAR_HEADER_CPV(1);
ib->ptr[ib->length_dw++] = bytes - 1;
ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
ib->ptr[ib->length_dw++] = lower_32_bits(src);
ib->ptr[ib->length_dw++] = upper_32_bits(src);
ib->ptr[ib->length_dw++] = lower_32_bits(pe);
ib->ptr[ib->length_dw++] = upper_32_bits(pe);
ib->ptr[ib->length_dw++] = 0;
}
@@ -1744,7 +1747,7 @@ static void sdma_v7_0_set_buffer_funcs(struct amdgpu_device *adev)
}
static const struct amdgpu_vm_pte_funcs sdma_v7_0_vm_pte_funcs = {
.copy_pte_num_dw = 7,
.copy_pte_num_dw = 8,
.copy_pte = sdma_v7_0_vm_copy_pte,
.write_pte = sdma_v7_0_vm_write_pte,
.set_pte_pde = sdma_v7_0_vm_set_pte_pde,