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author | Ingo Molnar <mingo@elte.hu> | 2010-08-19 12:48:09 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2010-08-19 12:48:09 +0200 |
commit | c8710ad38900153af7a3e6762e99c062cfa46443 (patch) | |
tree | a0c0632274c4eb72f51e99a5861f71cffe65ea60 /arch/arm/mach-s5pv310/headsmp.S | |
parent | perf, tracing: add missing __percpu markups (diff) | |
parent | tracing: Clean up seqfile code for format file (diff) | |
download | linux-dev-c8710ad38900153af7a3e6762e99c062cfa46443.tar.xz linux-dev-c8710ad38900153af7a3e6762e99c062cfa46443.zip |
Merge branch 'tip/perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core
Diffstat (limited to 'arch/arm/mach-s5pv310/headsmp.S')
-rw-r--r-- | arch/arm/mach-s5pv310/headsmp.S | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pv310/headsmp.S b/arch/arm/mach-s5pv310/headsmp.S new file mode 100644 index 000000000000..164b7b045713 --- /dev/null +++ b/arch/arm/mach-s5pv310/headsmp.S @@ -0,0 +1,41 @@ +/* + * linux/arch/arm/mach-s5pv310/headsmp.S + * + * Cloned from linux/arch/arm/mach-realview/headsmp.S + * + * Copyright (c) 2003 ARM Limited + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/linkage.h> +#include <linux/init.h> + + __INIT + +/* + * s5pv310 specific entry point for secondary CPUs. This provides + * a "holding pen" into which all secondary cores are held until we're + * ready for them to initialise. + */ +ENTRY(s5pv310_secondary_startup) + mrc p15, 0, r0, c0, c0, 5 + and r0, r0, #15 + adr r4, 1f + ldmia r4, {r5, r6} + sub r4, r4, r5 + add r6, r6, r4 +pen: ldr r7, [r6] + cmp r7, r0 + bne pen + + /* + * we've been released from the holding pen: secondary_stack + * should now contain the SVC stack for this core + */ + b secondary_startup + +1: .long . + .long pen_release |