diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 11:11:23 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 11:11:23 -0700 |
commit | 928a726b0e12184729900c076e13dbf1c511c96c (patch) | |
tree | f31a7f23c1b511ebb486598cc746786e1821d48c /arch/sh/mm/pmb.c | |
parent | 8ff64b539bfd998792614481ccb67139b97075ef (diff) | |
parent | eaeed5d31d8ded02fa0a4b608f57418cc0e65b07 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (96 commits)
sh: add support for SMSC Polaris platform
sh: fix the HD64461 level-triggered interrupts handling
sh: sh-rtc wakeup support
sh: sh-rtc invalid time rework
sh: sh-rtc carry interrupt rework
sh: disallow kexec virtual entry
sh: kexec jump: fix for ftrace.
sh: kexec: Drop SR.BL bit toggling.
sh: add kexec jump support
sh: rework kexec segment code
sh: simplify kexec vbr code
sh: Flush only the needed range when unmapping a VMA.
sh: Update debugfs ASID dumping for 16-bit ASID support.
sh: tlb-pteaex: Kill off legacy PTEA updates.
sh: Support for extended ASIDs on PTEAEX-capable SH-X3 cores.
sh: sh7763rdp: Change IRQ number for sh_eth of sh7763rdp
sh: espt-giga board support
sh: dma: Make G2 DMA configurable.
sh: dma: Make PVR2 DMA configurable.
sh: Move IRQ multi definition of DMAC to defconfig
...
Diffstat (limited to 'arch/sh/mm/pmb.c')
-rw-r--r-- | arch/sh/mm/pmb.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c index 84241676265..b1a714a92b1 100644 --- a/arch/sh/mm/pmb.c +++ b/arch/sh/mm/pmb.c @@ -15,6 +15,8 @@ */ #include <linux/init.h> #include <linux/kernel.h> +#include <linux/sysdev.h> +#include <linux/cpu.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/bitops.h> @@ -402,3 +404,39 @@ static int __init pmb_debugfs_init(void) return 0; } postcore_initcall(pmb_debugfs_init); + +#ifdef CONFIG_PM +static int pmb_sysdev_suspend(struct sys_device *dev, pm_message_t state) +{ + static pm_message_t prev_state; + + /* Restore the PMB after a resume from hibernation */ + if (state.event == PM_EVENT_ON && + prev_state.event == PM_EVENT_FREEZE) { + struct pmb_entry *pmbe; + spin_lock_irq(&pmb_list_lock); + for (pmbe = pmb_list; pmbe; pmbe = pmbe->next) + set_pmb_entry(pmbe); + spin_unlock_irq(&pmb_list_lock); + } + prev_state = state; + return 0; +} + +static int pmb_sysdev_resume(struct sys_device *dev) +{ + return pmb_sysdev_suspend(dev, PMSG_ON); +} + +static struct sysdev_driver pmb_sysdev_driver = { + .suspend = pmb_sysdev_suspend, + .resume = pmb_sysdev_resume, +}; + +static int __init pmb_sysdev_init(void) +{ + return sysdev_driver_register(&cpu_sysdev_class, &pmb_sysdev_driver); +} + +subsys_initcall(pmb_sysdev_init); +#endif |