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iris: Emit flushes for push constant source buffers

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Push constant loading is not coherent with L3 according to the document
that describes the hardware change for the vertex buffer L3 Bypass
Disable field.

If we've updated a push constant buffer with say, a blorp_buffer_copy,
we may need to flush both the render cache and the tile cache.

Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Rohan Garg <rohan.garg@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15275>
This commit is contained in:
Kenneth Graunke 2022-03-04 03:47:06 -08:00 • committed by Marge Bot
parent bbd5714a7e
commit 1c8b4940eb
1 changed files with 3 additions and 0 deletions
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3
src/gallium/drivers/iris/iris_state.c
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@ -5617,6 +5617,9 @@ setup_constant_buffers(struct iris_context *ice,
assert(cbuf->buffer_offset % 32 == 0);
if (res)
iris_emit_buffer_barrier_for(batch, res->bo, IRIS_DOMAIN_OTHER_READ);
push_bos->buffers[n].length = range->length;
push_bos->buffers[n].addr =
res ? ro_bo(res->bo, range->start * 32 + cbuf->buffer_offset)