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Viewing changes to arch/arm/kernel/suspend.c

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-04kado7d1u2er2rl
Tags: 3.2.0-16.25
Add new lowlatency kernel flavour

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arch/arm/kernel/suspend.c
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#include <linux/init.h>
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#include <asm/idmap.h>
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#include <asm/pgalloc.h>
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#include <asm/pgtable.h>
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#include <asm/memory.h>
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#include <asm/suspend.h>
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#include <asm/tlbflush.h>
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static pgd_t *suspend_pgd;
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extern int __cpu_suspend(unsigned long, int (*)(unsigned long));
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extern void cpu_resume_mmu(void);
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        *save_ptr = virt_to_phys(ptr);
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        /* This must correspond to the LDM in cpu_resume() assembly */
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        *ptr++ = virt_to_phys(suspend_pgd);
 
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        *ptr++ = virt_to_phys(idmap_pgd);
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        *ptr++ = sp;
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        *ptr++ = virt_to_phys(cpu_do_resume);
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        struct mm_struct *mm = current->active_mm;
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        int ret;
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        if (!suspend_pgd)
 
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        if (!idmap_pgd)
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                return -EINVAL;
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        /*
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        return ret;
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}
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static int __init cpu_suspend_init(void)
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{
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        suspend_pgd = pgd_alloc(&init_mm);
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        if (suspend_pgd) {
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                unsigned long addr = virt_to_phys(cpu_resume_mmu);
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                identity_mapping_add(suspend_pgd, addr, addr + SECTION_SIZE);
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        }
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        return suspend_pgd ? 0 : -ENOMEM;
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}
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core_initcall(cpu_suspend_init);