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authorScott Wood <scottwood@freescale.com>2007-04-26 17:19:31 (GMT)
committerPaul Mackerras <paulus@samba.org>2007-04-27 11:14:21 (GMT)
commit173ba87b9584e4cba41ce9a06916eba80baa1bf4 (patch)
treee15f27af2942af562d39248d82ff4db20fee1efd /arch/powerpc
parent4536b937466ff6784d2a9a4bebde924a0d6e01cb (diff)
downloadlinux-173ba87b9584e4cba41ce9a06916eba80baa1bf4.tar.xz
[POWERPC] bootwrapper: cuboot-83xx: Exclude upper 1MB from heap.
The uppermost part of memory is where u-boot puts the stack, so don't include that in the heap. It's not currently causing problems, as the current code allocates from the bottom of the heap, but this will keep things from potentially breaking if a future implementation were to allocate from the top. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/boot/cuboot-83xx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/boot/cuboot-83xx.c b/arch/powerpc/boot/cuboot-83xx.c
index 8f11d1e..6cbc20a 100644
--- a/arch/powerpc/boot/cuboot-83xx.c
+++ b/arch/powerpc/boot/cuboot-83xx.c
@@ -61,7 +61,7 @@ void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
loader_info.cmdline = (char *)r6;
loader_info.cmdline_len = r7 - r6;
- simple_alloc_init(_end, avail_ram, 32, 64);
+ simple_alloc_init(_end, avail_ram - 1024*1024, 32, 64);
ft_init(_dtb_start, _dtb_end - _dtb_start, 32);
serial_console_init();
platform_ops.fixups = platform_fixups;