From: David S. Miller Date: Wed, 26 Nov 2008 06:27:50 +0000 (-0800) Subject: sparc64: Add write_pic() helper. X-Git-Tag: Ubuntu-5.4-5.4.0-11.14~32693^2~73 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=456cad8e4e1754672e6df1e716cff1482ea124ce;p=mirror_ubuntu-focal-kernel.git sparc64: Add write_pic() helper. It writes the %pic register, keeping mind of processor bugs. Implement reset_pic() in terms of it. Signed-off-by: David S. Miller --- diff --git a/arch/sparc/include/asm/system_64.h b/arch/sparc/include/asm/system_64.h index 779cf62d3ce9..6c077816ab28 100644 --- a/arch/sparc/include/asm/system_64.h +++ b/arch/sparc/include/asm/system_64.h @@ -96,11 +96,12 @@ do { __asm__ __volatile__("ba,pt %%xcc, 1f\n\t" \ * arch/sparc64/kernel/smp.c:smp_percpu_timer_interrupt() * for more information. */ -#define reset_pic() \ - __asm__ __volatile__("ba,pt %xcc, 99f\n\t" \ +#define write_pic(__p) \ + __asm__ __volatile__("ba,pt %%xcc, 99f\n\t" \ ".align 64\n" \ - "99:wr %g0, 0x0, %pic\n\t" \ - "rd %pic, %g0") + "99:wr %0, 0x0, %%pic\n\t" \ + "rd %%pic, %%g0" : : "r" (__p)) +#define reset_pic() write_pic(0) #ifndef __ASSEMBLY__