From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Wed, 29 Oct 2008 20:28:57 +0000 (-0600)
Subject: gallium: fix alignment parameter passed to u_mmAllocMem()
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8828d52348d81e1b9ec985200a430554873b5f4e;p=mesa.git

gallium: fix alignment parameter passed to u_mmAllocMem()

Was 32, now 5.  The param is expressed as a power of two exponent.
The net effect is that the alignment was a no-op on X86 but on PPC we
always got the same memory address everytime rtasm_exec_malloc() was called.
---

diff --git a/src/gallium/auxiliary/rtasm/rtasm_execmem.c b/src/gallium/auxiliary/rtasm/rtasm_execmem.c
index df353633e8d..be7433baf87 100644
--- a/src/gallium/auxiliary/rtasm/rtasm_execmem.c
+++ b/src/gallium/auxiliary/rtasm/rtasm_execmem.c
@@ -83,8 +83,8 @@ rtasm_exec_malloc(size_t size)
    init_heap();
 
    if (exec_heap) {
-      size = (size + 31) & ~31;
-      block = u_mmAllocMem( exec_heap, size, 32, 0 );
+      size = (size + 31) & ~31;  /* next multiple of 32 bytes */
+      block = u_mmAllocMem( exec_heap, size, 5, 0 ); /* 5 -> 32-byte alignment */
    }
 
    if (block)