Re: [PATCH v3 0/2] change ARM linux memory layout to support 32 CPUs

2014-05-03 Thread Liu hua
On 2014/4/23 7:50, Nicolas Pitre wrote: > On Tue, 22 Apr 2014, Russell King - ARM Linux wrote: > >> On Tue, Apr 15, 2014 at 07:06:05PM +0800, Liu Hua wrote: >>> This patch series change fixmap mapping region to suppport 32 CPUs. >>> Because the "top_pmd" covers 0xfffe - 0x(2M). And par

Re: [PATCH v3 0/2] change ARM linux memory layout to support 32 CPUs

2014-04-22 Thread Nicolas Pitre
On Tue, 22 Apr 2014, Russell King - ARM Linux wrote: > On Tue, Apr 15, 2014 at 07:06:05PM +0800, Liu Hua wrote: > > This patch series change fixmap mapping region to suppport 32 CPUs. > > Because the "top_pmd" covers 0xfffe - 0x(2M). And part > > is used by vector table. So I move thi

Re: [PATCH v3 0/2] change ARM linux memory layout to support 32 CPUs

2014-04-22 Thread Russell King - ARM Linux
On Tue, Apr 15, 2014 at 07:06:05PM +0800, Liu Hua wrote: > This patch series change fixmap mapping region to suppport 32 CPUs. > Because the "top_pmd" covers 0xfffe - 0x(2M). And part > is used by vector table. So I move this region down to 0xffc0 > - 0xffd. Can you explain

[PATCH v3 0/2] change ARM linux memory layout to support 32 CPUs

2014-04-15 Thread Liu Hua
This patch series change fixmap mapping region to suppport 32 CPUs. Because the "top_pmd" covers 0xfffe - 0x(2M). And part is used by vector table. So I move this region down to 0xffc0 - 0xffd. I have tested the patches on arma9(2 CPUs) and arma15(16 CPUs) platforms Change