diff options
author | Dave Airlie <airlied@redhat.com> | 2009-03-28 20:22:18 -0400 |
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committer | Dave Airlie <airlied@redhat.com> | 2009-03-28 20:22:18 -0400 |
commit | 90f959bcb386da2c71613dcefc6a285e054a539e (patch) | |
tree | ee3e9dd4111d4aad12e579cb0c2c159114dff263 /arch/sh/mm/pmb.c | |
parent | 41f13fe81dd1b08723ab9f3fc3c7f29cfa81f1a5 (diff) | |
parent | 07d43ba98621f08e252a48c96b258b4d572b0257 (diff) |
drm: merge Linux master into HEAD
Conflicts:
drivers/gpu/drm/drm_info.c
drivers/gpu/drm/drm_proc.c
drivers/gpu/drm/i915/i915_gem_debugfs.c
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 84241676265e..b1a714a92b14 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 |