From: Rob Clark <robclark@freedesktop.org>
Date: Sun, 24 Jan 2016 18:18:39 +0000 (-0500)
Subject: freedreno: limit string marker to max packet size
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9e05e8cb7511d7c575e226176f6e9be1c67268a4;p=mesa.git

freedreno: limit string marker to max packet size

Experimentally derived max size.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
---

diff --git a/src/gallium/drivers/freedreno/freedreno_context.c b/src/gallium/drivers/freedreno/freedreno_context.c
index c5ea86f9368..c54bb1091f7 100644
--- a/src/gallium/drivers/freedreno/freedreno_context.c
+++ b/src/gallium/drivers/freedreno/freedreno_context.c
@@ -152,6 +152,9 @@ fd_emit_string_marker(struct pipe_context *pctx, const char *string, int len)
 	struct fd_ringbuffer *ring = ctx->ring;
 	const uint32_t *buf = (const void *)string;
 
+	/* max packet size is 0x3fff dwords: */
+	len = MIN2(len, 0x3fff * 4);
+
 	OUT_PKT3(ring, CP_NOP, align(len, 4) / 4);
 	while (len >= 4) {
 		OUT_RING(ring, *buf);