diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/kernel/sleep.S')
-rw-r--r-- | ANDROID_3.4.5/arch/arm/kernel/sleep.S | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/ANDROID_3.4.5/arch/arm/kernel/sleep.S b/ANDROID_3.4.5/arch/arm/kernel/sleep.S deleted file mode 100644 index 987dcf33..00000000 --- a/ANDROID_3.4.5/arch/arm/kernel/sleep.S +++ /dev/null @@ -1,104 +0,0 @@ -#include <linux/linkage.h> -#include <linux/threads.h> -#include <asm/asm-offsets.h> -#include <asm/assembler.h> -#include <asm/glue-cache.h> -#include <asm/glue-proc.h> - .text - -/* - * Save CPU state for a suspend. This saves the CPU general purpose - * registers, and allocates space on the kernel stack to save the CPU - * specific registers and some other data for resume. - * r0 = suspend function arg0 - * r1 = suspend function - */ -ENTRY(__cpu_suspend) - stmfd sp!, {r4 - r11, lr} -#ifdef MULTI_CPU - ldr r10, =processor - ldr r4, [r10, #CPU_SLEEP_SIZE] @ size of CPU sleep state -#else - ldr r4, =cpu_suspend_size -#endif - mov r5, sp @ current virtual SP - add r4, r4, #12 @ Space for pgd, virt sp, phys resume fn - sub sp, sp, r4 @ allocate CPU state on stack - stmfd sp!, {r0, r1} @ save suspend func arg and pointer - add r0, sp, #8 @ save pointer to save block - mov r1, r4 @ size of save block - mov r2, r5 @ virtual SP - ldr r3, =sleep_save_sp -#ifdef CONFIG_SMP - ALT_SMP(mrc p15, 0, lr, c0, c0, 5) - ALT_UP(mov lr, #0) - and lr, lr, #15 - add r3, r3, lr, lsl #2 -#endif - bl __cpu_suspend_save - adr lr, BSYM(cpu_suspend_abort) - ldmfd sp!, {r0, pc} @ call suspend fn -ENDPROC(__cpu_suspend) - .ltorg - -cpu_suspend_abort: - ldmia sp!, {r1 - r3} @ pop phys pgd, virt SP, phys resume fn - teq r0, #0 - moveq r0, #1 @ force non-zero value - mov sp, r2 - ldmfd sp!, {r4 - r11, pc} -ENDPROC(cpu_suspend_abort) - -/* - * r0 = control register value - */ - .align 5 - .pushsection .idmap.text,"ax" -ENTRY(cpu_resume_mmu) - ldr r3, =cpu_resume_after_mmu - instr_sync - 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 r0, r0 - mov r0, r0 - mov pc, r3 @ jump to virtual address -ENDPROC(cpu_resume_mmu) - .popsection -cpu_resume_after_mmu: - bl cpu_init @ restore the und/abt/irq banked regs - mov r0, #0 @ return zero on success - ldmfd sp!, {r4 - r11, pc} -ENDPROC(cpu_resume_after_mmu) - -/* - * Note: Yes, part of the following code is located into the .data section. - * This is to allow sleep_save_sp to be accessed with a relative load - * while we can't rely on any MMU translation. We could have put - * sleep_save_sp in the .text section as well, but some setups might - * insist on it to be truly read-only. - */ - .data - .align -ENTRY(cpu_resume) -#ifdef CONFIG_SMP - adr r0, sleep_save_sp - ALT_SMP(mrc p15, 0, r1, c0, c0, 5) - ALT_UP(mov r1, #0) - and r1, r1, #15 - ldr r0, [r0, r1, lsl #2] @ stack phys addr -#else - ldr r0, sleep_save_sp @ stack phys addr -#endif - setmode PSR_I_BIT | PSR_F_BIT | SVC_MODE, r1 @ set SVC, irqs off - @ load phys pgd, stack, resume fn - ARM( ldmia r0!, {r1, sp, pc} ) -THUMB( ldmia r0!, {r1, r2, r3} ) -THUMB( mov sp, r2 ) -THUMB( bx r3 ) -ENDPROC(cpu_resume) - -sleep_save_sp: - .rept CONFIG_NR_CPUS - .long 0 @ preserve stack phys ptr here - .endr |