Mesa (master): llvmpipe: increase max texture size to 2GB

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Module: Mesa
Branch: master
Commit: 5084e9785b805108fad3a64cf8741d8d83f9b52c
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=5084e9785b805108fad3a64cf8741d8d83f9b52c

Author: Roland Scheidegger <sroland at vmware.com>
Date:   Thu Oct 10 20:10:34 2019 +0200

llvmpipe: increase max texture size to 2GB

The 1GB limit was arbitrary, increase this to 2GB (which is the max
possible without code changes).

Reviewed-by: Jose Fonseca <jfonseca at vmware.com>

---

 src/gallium/drivers/llvmpipe/lp_limits.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/llvmpipe/lp_limits.h b/src/gallium/drivers/llvmpipe/lp_limits.h
index c2808162c78..569179ecdf4 100644
--- a/src/gallium/drivers/llvmpipe/lp_limits.h
+++ b/src/gallium/drivers/llvmpipe/lp_limits.h
@@ -43,7 +43,11 @@
 /**
  * Max texture sizes
  */
-#define LP_MAX_TEXTURE_SIZE (1 * 1024 * 1024 * 1024ULL)  /* 1GB for now */
+/**
+ * 2GB is the actual max currently (we always use 32bit offsets, and both
+ * llvm GEP as well as avx2 gather use signed offsets).
+ */
+#define LP_MAX_TEXTURE_SIZE (2 * 1024 * 1024 * 1024ULL)
 #define LP_MAX_TEXTURE_2D_LEVELS 14  /* 8K x 8K for now */
 #define LP_MAX_TEXTURE_3D_LEVELS 12  /* 2K x 2K x 2K for now */
 #define LP_MAX_TEXTURE_CUBE_LEVELS 14  /* 8K x 8K for now */