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iris: CS stall on VF cache invalidate workarounds

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See commit 31e4c9ce40 in i965.
This commit is contained in:
Kenneth Graunke 2019-01-17 23:44:09 -08:00
parent c81941f1e7
commit 61798e3c88
2 changed files with 6 additions and 3 deletions
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3
src/gallium/drivers/iris/iris_blorp.c
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@ -216,7 +216,8 @@ blorp_vf_invalidate_for_vb_48b_transitions(struct blorp_batch *blorp_batch,
}
if (need_invalidate) {
iris_emit_pipe_control_flush(batch, PIPE_CONTROL_VF_CACHE_INVALIDATE);
iris_emit_pipe_control_flush(batch, PIPE_CONTROL_VF_CACHE_INVALIDATE |
PIPE_CONTROL_CS_STALL);
}
}

6
src/gallium/drivers/iris/iris_state.c
View file

@ -4546,7 +4546,8 @@ iris_upload_dirty_render_state(struct iris_context *ice,
high_bits = res->bo->gtt_offset >> 32ull;
if (high_bits != ice->state.last_vbo_high_bits[i]) {
flush_flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
flush_flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE |
PIPE_CONTROL_CS_STALL;
ice->state.last_vbo_high_bits[i] = high_bits;
}
@ -4671,7 +4672,8 @@ iris_upload_render_state(struct iris_context *ice,
/* The VF cache key only uses 32-bits, see vertex buffer comment above */
uint16_t high_bits = bo->gtt_offset >> 32ull;
if (high_bits != ice->state.last_index_bo_high_bits) {
iris_emit_pipe_control_flush(batch, PIPE_CONTROL_VF_CACHE_INVALIDATE);
iris_emit_pipe_control_flush(batch, PIPE_CONTROL_VF_CACHE_INVALIDATE |
PIPE_CONTROL_CS_STALL);
ice->state.last_index_bo_high_bits = high_bits;
}
}