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SubjectRe: [PATCH] arm64: add ioremap physical address information
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On Tue, Jan 6, 2015 at 10:17 PM, Will Deacon <will.deacon@arm.com> wrote:
> On Fri, Dec 26, 2014 at 04:52:10PM +0000, Min-Hua Chen wrote:
>> In /proc/vmallocinfo, it's good to show the physical address
>> of each ioremap in vmallocinfo. Add physical address information
>> in arm64 ioremap.
>>
>> 0xffffc900047f2000-0xffffc900047f4000 8192 _nv013519rm+0x57/0xa0
>> [nvidia] phys=f8100000 ioremap
>> 0xffffc900047f4000-0xffffc900047f6000 8192 _nv013519rm+0x57/0xa0
>> [nvidia] phys=f8008000 ioremap
>> 0xffffc90004800000-0xffffc90004821000 135168 e1000_probe+0x22c/0xb95
>> [e1000e] phys=f4300000 ioremap
>> 0xffffc900049c0000-0xffffc900049e1000 135168 _nv013521rm+0x4d/0xd0
>> [nvidia] phys=e0140000 ioremap
>>
>> Signed-off-by: Min-Hua Chen <orca.chen@gmail.com>
>> ---
>
> Thanks, this looks useful for debugging.
>
> Acked-by: Will Deacon <will.deacon@arm.com>
>
> I assume this can wait for 3.20?

Sure, thanks.

Min-Hua

>
> Will
>
>
>> arch/arm64/mm/ioremap.c | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm64/mm/ioremap.c b/arch/arm64/mm/ioremap.c
>> index cbb99c8..01e88c8 100644
>> --- a/arch/arm64/mm/ioremap.c
>> +++ b/arch/arm64/mm/ioremap.c
>> @@ -62,6 +62,7 @@ static void __iomem *__ioremap_caller(phys_addr_t
>> phys_addr, size_t size,
>> if (!area)
>> return NULL;
>> addr = (unsigned long)area->addr;
>> + area->phys_addr = phys_addr;
>>
>> err = ioremap_page_range(addr, addr + size, phys_addr, prot);
>> if (err) {
>> --
>> 1.7.10.4
>>


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