[RFC PATCH v5] ARM hibernation / suspend-to-disk (fwd)

Frank Hofmann frank.hofmann at tomtom.com
Mon Jun 13 09:20:12 EDT 2011

On Mon, 13 Jun 2011, Russell King - ARM Linux wrote:

> On Mon, Jun 13, 2011 at 01:04:02PM +0100, Frank Hofmann wrote:
>>   To make it clear: IF AND ONLY IF your suspend(-to-ram) func looks like:
>> 	ENTRY(acmeSoC_cpu_suspend)
>> 		stmfd	sp!, {r4-r12,lr}
>> 		ldr	r3, resume_mmu_done
>> 		bl	cpu_suspend
>> 	resume_mmu_done:
>> 		ldmfd	sp!, {r3-r12,pc}
>> 	ENDPROC(acmeSoC_cpu_suspend)
> Nothing has that - because you can't execute that ldmfd after the call
> to cpu_suspend returns.  I don't think you've understood what I said on
> that subject in the previous thread.

Ok, to illustrate a bit more, what is ok and what not.

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