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radv: Skip setting empty index buffers to avoid hang

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In the direct path we already skipped draws, but in DGC I noticed
that just emitting these packets can cause issues ...

Cc: mesa-stable
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17269>
This commit is contained in:
Bas Nieuwenhuizen
2022-01-30 01:54:12 +01:00
committed by Marge Bot
parent f27f06d72c
commit 82c2e99102
1 changed files with 8 additions and 5 deletions
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src/amd/vulkan/radv_cmd_buffer.c
+8 -5
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@@ -2690,12 +2690,15 @@ radv_emit_index_buffer(struct radv_cmd_buffer *cmd_buffer, bool indirect)
if (!indirect)
return;
radeon_emit(cs, PKT3(PKT3_INDEX_BASE, 1, 0));
radeon_emit(cs, state->index_va);
radeon_emit(cs, state->index_va >> 32);
if (state->max_index_count ||
!cmd_buffer->device->physical_device->rad_info.has_zero_index_buffer_bug) {
radeon_emit(cs, PKT3(PKT3_INDEX_BASE, 1, 0));
radeon_emit(cs, state->index_va);
radeon_emit(cs, state->index_va >> 32);
radeon_emit(cs, PKT3(PKT3_INDEX_BUFFER_SIZE, 0, 0));
radeon_emit(cs, state->max_index_count);
radeon_emit(cs, PKT3(PKT3_INDEX_BUFFER_SIZE, 0, 0));
radeon_emit(cs, state->max_index_count);
}
cmd_buffer->state.dirty &= ~RADV_CMD_DIRTY_INDEX_BUFFER;
}