From: Scott Wood Date: Thu, 26 Apr 2007 17:19:31 +0000 (+1000) Subject: [POWERPC] bootwrapper: cuboot-83xx: Exclude upper 1MB from heap. X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=173ba87b9584e4cba41ce9a06916eba80baa1bf4;p=linux-beck.git [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 Signed-off-by: Paul Mackerras --- diff --git a/arch/powerpc/boot/cuboot-83xx.c b/arch/powerpc/boot/cuboot-83xx.c index 8f11d1e8937a..6cbc20afb4d8 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;