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virgl: Fix flush in virgl_encoder_inline_write.

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The current code is buggy: if there are only 12 dwords left in cbuf,
we emit a zero data length command which will be rejected by virglrenderer.
Fix it by calling flush in this case.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit 04e278f793)
This commit is contained in:
Lepton Wu 2018-07-16 18:56:32 -07:00 • committed by Dylan Baker
parent 92e544d96e
commit 47ac26f858
1 changed files with 1 additions and 1 deletions
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2
src/gallium/drivers/virgl/virgl_encode.c
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@ -524,7 +524,7 @@ int virgl_encoder_inline_write(struct virgl_context *ctx,
left_bytes = size;
while (left_bytes) {
if (ctx->cbuf->cdw + 12 > VIRGL_MAX_CMDBUF_DWORDS)
if (ctx->cbuf->cdw + 12 >= VIRGL_MAX_CMDBUF_DWORDS)
ctx->base.flush(&ctx->base, NULL, 0);
thispass = (VIRGL_MAX_CMDBUF_DWORDS - ctx->cbuf->cdw - 12) * 4;