extern int cpu_do_idle(void);
extern void cpu_dcache_clean_area(void *, int);
extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
+ #ifdef CONFIG_ARM_LPAE
+ extern void cpu_set_pte_ext(pte_t *ptep, pte_t pte);
+ #else
extern void cpu_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext);
+ #endif
extern void cpu_reset(unsigned long addr) __attribute__((noreturn));
+
+/* These three are private to arch/arm/kernel/suspend.c */
+extern void cpu_do_suspend(void *);
+extern void cpu_do_resume(void *);
#else
#define cpu_proc_init processor._proc_init
#define cpu_proc_fin processor._proc_fin
/*
* r0 = control register value
- * r1 = v:p offset (preserved by cpu_do_resume)
- * r2 = phys page table base
- * r3 = L1 section flags
*/
+ .align 5
ENTRY(cpu_resume_mmu)
- adr r4, cpu_resume_turn_mmu_on
- mov r4, r4, lsr #20
- orr r3, r3, r4, lsl #20
- ldr r5, [r2, r4, lsl #2] @ save old mapping
- str r3, [r2, r4, lsl #2] @ setup 1:1 mapping for mmu code
- sub r2, r2, r1
ldr r3, =cpu_resume_after_mmu
- bic r1, r0, #CR_C @ ensure D-cache is disabled
- b cpu_resume_turn_mmu_on
-ENDPROC(cpu_resume_mmu)
- .ltorg
- .align 5
-cpu_resume_turn_mmu_on:
+ instr_sync
- mcr p15, 0, r1, c1, c0, 0 @ turn on MMU, I-cache, etc
- mrc p15, 0, r1, c0, c0, 0 @ read id reg
+ mcr p15, 0, r0, c1, c0, 0 @ turn on MMU, I-cache, etc
+ mrc p15, 0, r0, c0, c0, 0 @ read id reg
+ instr_sync
- mov r1, r1
- mov r1, r1
+ mov r0, r0
+ mov r0, r0
mov pc, r3 @ jump to virtual address
-ENDPROC(cpu_resume_turn_mmu_on)
+ENDPROC(cpu_resume_mmu)
cpu_resume_after_mmu:
- str r5, [r2, r4, lsl #2] @ restore old mapping
- mcr p15, 0, r0, c1, c0, 0 @ turn on D-cache
bl cpu_init @ restore the und/abt/irq banked regs
mov r0, #0 @ return zero on success
ldmfd sp!, {r4 - r11, pc}