Hi Russell,
On 02/12/2014 02:18 PM, Russell King - ARM Linux wrote:
On Wed, Feb 12, 2014 at 02:05:39PM +0100, Fabrice GASNIER wrote:
Hi,
Any comments on this patch ?
Russell, can I add this patch to your patch tracker system ?
I don't see how this works on anything but ARMv7M.
Sorry, i'm confused.
In the first patch you proposed,
http://archive.arm.linux.org.uk/lurker/message/20140131.170827.d752a1cc.en.html
there was :
#ifndef CONFIG_CPU_V7M
[...]
/* Enable imprecise aborts */
[...]
#else /* ifndef CONFIG_CPU_V7M */
I understand that abort handling (vectors and masking ?) is different on
armv7-m ?
Or should we make no distinction ?
I have kept the same principle regarding abort enable/disable macro.
#if __LINUX_ARM_ARCH__ >= 6
[...]
#ifndef CONFIG_CPU_V7M
#define local_abt_enable() __asm__("cpsie a @ __sta" : : : "memory",
"cc")
#define local_abt_disable() __asm__("cpsid a @ __cla" : : : "memory",
"cc")
#else
#define local_abt_enable() do { } while (0)
#define local_abt_disable() do { } while (0)
#endif
#else
[...]
#define local_abt_enable() do { } while (0)
#define local_abt_disable() do { } while (0)
#endif
Sorry if this is silly question ...
BR,
Fabrice
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