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| author | David Woodhouse <David.Woodhouse@intel.com> | 2008-09-01 12:32:13 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2008-09-01 12:32:13 +0200 |
| commit | 9d7548d4ca3c52ecb58f098a32b0756cdf8f96ee (patch) | |
| tree | 651f7058bbaa2d8b2855286380d614afcf505118 /arch/ia64/kernel/head.S | |
| parent | [JFFS2] Move JFFS2 config options out of fs/Kconfig (diff) | |
| parent | Resource handling: add 'insert_resource_expand_to_fit()' function (diff) | |
| download | linux-9d7548d4ca3c52ecb58f098a32b0756cdf8f96ee.tar.xz linux-9d7548d4ca3c52ecb58f098a32b0756cdf8f96ee.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/ia64/kernel/head.S')
| -rw-r--r-- | arch/ia64/kernel/head.S | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S index 41c712917ff7..8bdea8eb62e3 100644 --- a/arch/ia64/kernel/head.S +++ b/arch/ia64/kernel/head.S @@ -359,7 +359,31 @@ start_ap: mov ar.rsc=0 // place RSE in enforced lazy mode ;; loadrs // clear the dirty partition - mov IA64_KR(PER_CPU_DATA)=r0 // clear physical per-CPU base + movl r19=__phys_per_cpu_start + mov r18=PERCPU_PAGE_SIZE + ;; +#ifndef CONFIG_SMP + add r19=r19,r18 + ;; +#else +(isAP) br.few 2f + mov r20=r19 + sub r19=r19,r18 + ;; + shr.u r18=r18,3 +1: + ld8 r21=[r20],8;; + st8[r19]=r21,8 + adds r18=-1,r18;; + cmp4.lt p7,p6=0,r18 +(p7) br.cond.dptk.few 1b +2: +#endif + tpa r19=r19 + ;; + .pred.rel.mutex isBP,isAP +(isBP) mov IA64_KR(PER_CPU_DATA)=r19 // per-CPU base for cpu0 +(isAP) mov IA64_KR(PER_CPU_DATA)=r0 // clear physical per-CPU base ;; mov ar.bspstore=r2 // establish the new RSE stack ;; |