Re: [PATCH RFC 2/3] ARM: kernel: add support for cpu cache information

2014-01-09 Thread Sudeep Holla
On 08/01/14 20:57, Russell King - ARM Linux wrote: > On Wed, Jan 08, 2014 at 07:26:07PM +, Sudeep Holla wrote: >> +#if __LINUX_ARM_ARCH__ < 7 /* pre ARMv7 */ >> + >> +#define MAX_CACHE_LEVEL 1 /* Only 1 level supported */ >> +#define CTR_CTYPE_SHIFT 24 >> +#define

Re: [PATCH RFC 2/3] ARM: kernel: add support for cpu cache information

2014-01-09 Thread Russell King - ARM Linux
On Thu, Jan 09, 2014 at 07:35:03PM +, Sudeep Holla wrote: > I assume you referring to some particular CPUs which don't implement this. > I could not find it as optional or IMPLEMENTATION defined in ARM ARM. > I might be missing to find it or there may be exceptions. > Can you please provide mor

Re: [PATCH RFC 2/3] ARM: kernel: add support for cpu cache information

2014-01-08 Thread Russell King - ARM Linux
On Wed, Jan 08, 2014 at 07:26:07PM +, Sudeep Holla wrote: > +#if __LINUX_ARM_ARCH__ < 7 /* pre ARMv7 */ > + > +#define MAX_CACHE_LEVEL 1 /* Only 1 level supported */ > +#define CTR_CTYPE_SHIFT 24 > +#define CTR_CTYPE_MASK (1 << CTR_CTYPE_SHIFT) > +