From: Isaku Yamahata Date: Mon, 19 May 2008 13:13:30 +0000 (+0900) Subject: [IA64] pvops: preparation: introduce ia64_set_rr0_to_rr4() to make kernel paravirtual... X-Git-Tag: v2.6.27-rc1~948^2~6^2~16 X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=0e1a77ccdbc4ca59ccaf84168a0c3c1df4fadfc0;p=linux-2.6-omap-h63xx.git [IA64] pvops: preparation: introduce ia64_set_rr0_to_rr4() to make kernel paravirtualization friendly. make kernel paravirtualization friendly by introducing ia64_set_rr0_to_rr4(). ia64/Xen will replace setting rr[0-4] with single hypercall later. Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- diff --git a/include/asm-ia64/intrinsics.h b/include/asm-ia64/intrinsics.h index f1135b5b94c..9b83f8f0167 100644 --- a/include/asm-ia64/intrinsics.h +++ b/include/asm-ia64/intrinsics.h @@ -18,6 +18,15 @@ # include #endif +#define ia64_set_rr0_to_rr4(val0, val1, val2, val3, val4) \ +do { \ + ia64_set_rr(0x0000000000000000UL, (val0)); \ + ia64_set_rr(0x2000000000000000UL, (val1)); \ + ia64_set_rr(0x4000000000000000UL, (val2)); \ + ia64_set_rr(0x6000000000000000UL, (val3)); \ + ia64_set_rr(0x8000000000000000UL, (val4)); \ +} while (0) + /* * Force an unresolved reference if someone tries to use * ia64_fetch_and_add() with a bad value. diff --git a/include/asm-ia64/mmu_context.h b/include/asm-ia64/mmu_context.h index cef2400983f..040bc87db93 100644 --- a/include/asm-ia64/mmu_context.h +++ b/include/asm-ia64/mmu_context.h @@ -152,11 +152,7 @@ reload_context (nv_mm_context_t context) # endif #endif - ia64_set_rr(0x0000000000000000UL, rr0); - ia64_set_rr(0x2000000000000000UL, rr1); - ia64_set_rr(0x4000000000000000UL, rr2); - ia64_set_rr(0x6000000000000000UL, rr3); - ia64_set_rr(0x8000000000000000UL, rr4); + ia64_set_rr0_to_rr4(rr0, rr1, rr2, rr3, rr4); ia64_srlz_i(); /* srlz.i implies srlz.d */ }