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iris: NOOP pad batches correctly

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This commit is contained in:
Kenneth Graunke 2018-02-09 21:58:00 -08:00
parent f3150e9ecd
commit 23367688e9
1 changed files with 9 additions and 3 deletions
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12
src/gallium/drivers/iris/iris_batch.c
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@ -439,9 +439,15 @@ iris_finish_batch(struct iris_batch *batch)
{
batch->no_wrap = true;
/* Mark the end of the buffer. */
const uint32_t MI_BATCH_BUFFER_END = (0xA << 23);
iris_batch_emit(batch, &MI_BATCH_BUFFER_END, sizeof(uint32_t));
// XXX: ISP DIS
/* Emit MI_BATCH_BUFFER_END to finish our batch. Note that execbuf2
* requires our batch size to be QWord aligned, so we pad it out if
* necessary by emitting an extra MI_NOOP after the end.
*/
const uint32_t MI_BATCH_BUFFER_END_AND_NOOP[2] = { (0xA << 23), 0 };
const bool qword_aligned = (buffer_bytes_used(&batch->cmdbuf) % 8) == 0;
iris_batch_emit(batch, MI_BATCH_BUFFER_END_AND_NOOP, qword_aligned ? 8 : 4);
batch->no_wrap = false;
}