diff options
Diffstat (limited to 'arch/arm/mach-msm/hotplug.c')
| -rw-r--r-- | arch/arm/mach-msm/hotplug.c | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/arch/arm/mach-msm/hotplug.c b/arch/arm/mach-msm/hotplug.c deleted file mode 100644 index 326a87261f9..00000000000 --- a/arch/arm/mach-msm/hotplug.c +++ /dev/null @@ -1,74 +0,0 @@ -/* - * Copyright (C) 2002 ARM Ltd. - * 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/kernel.h> -#include <linux/errno.h> -#include <linux/smp.h> - -#include <asm/smp_plat.h> - -#include "common.h" - -static inline void cpu_enter_lowpower(void) -{ -} - -static inline void cpu_leave_lowpower(void) -{ -} - -static inline void platform_do_lowpower(unsigned int cpu) -{ - /* Just enter wfi for now. TODO: Properly shut off the cpu. */ - for (;;) { - /* - * here's the WFI - */ - asm("wfi" - : - : - : "memory", "cc"); - - if (pen_release == cpu_logical_map(cpu)) { - /* - * OK, proper wakeup, we're done - */ - break; - } - - /* - * getting here, means that we have come out of WFI without - * having been woken up - this shouldn't happen - * - * The trouble is, letting people know about this is not really - * possible, since we are currently running incoherently, and - * therefore cannot safely call printk() or anything else - */ - pr_debug("CPU%u: spurious wakeup call\n", cpu); - } -} - -/* - * platform-specific code to shutdown a CPU - * - * Called with IRQs disabled - */ -void __ref msm_cpu_die(unsigned int cpu) -{ - /* - * we're ready for shutdown now, so do it - */ - cpu_enter_lowpower(); - platform_do_lowpower(cpu); - - /* - * bring this CPU back into the world of cache - * coherency, and then restore interrupts - */ - cpu_leave_lowpower(); -} |