On Thu, 13 Mar 2014, Liu hua wrote:
> On 2014/3/13 1:08, Nicolas Pitre wrote:
> > On Wed, 12 Mar 2014, Liu hua wrote:
> >
> >> Hi Russell, Will or Nicolas,
> >>
> >> (In this mail, we only discuss ARM 32-bit linux.)
> >>
> >> As we know, the region (0xfff0-0xfffd) is reserved as fixmap
>
On 2014/3/13 1:08, Nicolas Pitre wrote:
> On Wed, 12 Mar 2014, Liu hua wrote:
>
>> Hi Russell, Will or Nicolas,
>>
>> (In this mail, we only discuss ARM 32-bit linux.)
>>
>> As we know, the region (0xfff0-0xfffd) is reserved as fixmap
>> mapping region.
>>
>> The function "kmap_atomic"
On 2014/3/13 1:08, Nicolas Pitre wrote:
On Wed, 12 Mar 2014, Liu hua wrote:
Hi Russell, Will or Nicolas,
(In this mail, we only discuss ARM 32-bit linux.)
As we know, the region (0xfff0-0xfffd) is reserved as fixmap
mapping region.
The function kmap_atomic maps highmem pages to
On Thu, 13 Mar 2014, Liu hua wrote:
On 2014/3/13 1:08, Nicolas Pitre wrote:
On Wed, 12 Mar 2014, Liu hua wrote:
Hi Russell, Will or Nicolas,
(In this mail, we only discuss ARM 32-bit linux.)
As we know, the region (0xfff0-0xfffd) is reserved as fixmap
mapping region.
On Wed, 12 Mar 2014, Liu hua wrote:
> Hi Russell, Will or Nicolas,
>
> (In this mail, we only discuss ARM 32-bit linux.)
>
> As we know, the region (0xfff0-0xfffd) is reserved as fixmap
> mapping region.
>
> The function "kmap_atomic" maps highmem pages to this region referring
> to
Hi Russell, Will or Nicolas,
(In this mail, we only discuss ARM 32-bit linux.)
As we know, the region (0xfff0-0xfffd) is reserved as fixmap
mapping region.
The function "kmap_atomic" maps highmem pages to this region referring
to CPUID and per-cpu variable "__kmap_atomic_idx" via
idx
On Wed, 12 Mar 2014, Liu hua wrote:
Hi Russell, Will or Nicolas,
(In this mail, we only discuss ARM 32-bit linux.)
As we know, the region (0xfff0-0xfffd) is reserved as fixmap
mapping region.
The function kmap_atomic maps highmem pages to this region referring
to CPUID and
Hi Russell, Will or Nicolas,
(In this mail, we only discuss ARM 32-bit linux.)
As we know, the region (0xfff0-0xfffd) is reserved as fixmap
mapping region.
The function kmap_atomic maps highmem pages to this region referring
to CPUID and per-cpu variable __kmap_atomic_idx via
idx =
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