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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-05 23:55:20 +0200 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-05 23:55:20 +0200 |
commit | ea62ccd00fd0b6720b033adfc9984f31130ce195 (patch) | |
tree | 9837b797b2466fffcb0af96c388b06eae9c3df18 /include/asm-x86_64/ipi.h | |
parent | Fix compile of tmscsim SCSI driver (diff) | |
parent | [PATCH] i386: Don't delete cpu_devs data to identify different x86 types in l... (diff) | |
download | linux-ea62ccd00fd0b6720b033adfc9984f31130ce195.tar.xz linux-ea62ccd00fd0b6720b033adfc9984f31130ce195.zip |
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (231 commits)
[PATCH] i386: Don't delete cpu_devs data to identify different x86 types in late_initcall
[PATCH] i386: type may be unused
[PATCH] i386: Some additional chipset register values validation.
[PATCH] i386: Add missing !X86_PAE dependincy to the 2G/2G split.
[PATCH] x86-64: Don't exclude asm-offsets.c in Documentation/dontdiff
[PATCH] i386: avoid redundant preempt_disable in __unlazy_fpu
[PATCH] i386: white space fixes in i387.h
[PATCH] i386: Drop noisy e820 debugging printks
[PATCH] x86-64: Fix allnoconfig error in genapic_flat.c
[PATCH] x86-64: Shut up warnings for vfat compat ioctls on other file systems
[PATCH] x86-64: Share identical video.S between i386 and x86-64
[PATCH] x86-64: Remove CONFIG_REORDER
[PATCH] x86-64: Print type and size correctly for unknown compat ioctls
[PATCH] i386: Remove copy_*_user BUG_ONs for (size < 0)
[PATCH] i386: Little cleanups in smpboot.c
[PATCH] x86-64: Don't enable NUMA for a single node in K8 NUMA scanning
[PATCH] x86: Use RDTSCP for synchronous get_cycles if possible
[PATCH] i386: Add X86_FEATURE_RDTSCP
[PATCH] i386: Implement X86_FEATURE_SYNC_RDTSC on i386
[PATCH] i386: Implement alternative_io for i386
...
Fix up trivial conflict in include/linux/highmem.h manually.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-x86_64/ipi.h')
-rw-r--r-- | include/asm-x86_64/ipi.h | 61 |
1 files changed, 36 insertions, 25 deletions
diff --git a/include/asm-x86_64/ipi.h b/include/asm-x86_64/ipi.h index 2a5c162b7d92..a7c75ea408a8 100644 --- a/include/asm-x86_64/ipi.h +++ b/include/asm-x86_64/ipi.h @@ -18,10 +18,8 @@ * Subject to the GNU Public License, v.2 */ -#include <asm/fixmap.h> #include <asm/hw_irq.h> -#include <asm/apicdef.h> -#include <asm/genapic.h> +#include <asm/apic.h> /* * the following functions deal with sending IPIs between CPUs. @@ -76,10 +74,42 @@ static inline void __send_IPI_shortcut(unsigned int shortcut, int vector, unsign apic_write(APIC_ICR, cfg); } +/* + * This is used to send an IPI with no shorthand notation (the destination is + * specified in bits 56 to 63 of the ICR). + */ +static inline void __send_IPI_dest_field(unsigned int mask, int vector, unsigned int dest) +{ + unsigned long cfg; + + /* + * Wait for idle. + */ + if (unlikely(vector == NMI_VECTOR)) + safe_apic_wait_icr_idle(); + else + apic_wait_icr_idle(); + + /* + * prepare target chip field + */ + cfg = __prepare_ICR2(mask); + apic_write(APIC_ICR2, cfg); + + /* + * program the ICR + */ + cfg = __prepare_ICR(0, vector, dest); + + /* + * Send the IPI. The write to APIC_ICR fires this off. + */ + apic_write(APIC_ICR, cfg); +} static inline void send_IPI_mask_sequence(cpumask_t mask, int vector) { - unsigned long cfg, flags; + unsigned long flags; unsigned long query_cpu; /* @@ -88,28 +118,9 @@ static inline void send_IPI_mask_sequence(cpumask_t mask, int vector) * - mbligh */ local_irq_save(flags); - for_each_cpu_mask(query_cpu, mask) { - /* - * Wait for idle. - */ - apic_wait_icr_idle(); - - /* - * prepare target chip field - */ - cfg = __prepare_ICR2(x86_cpu_to_apicid[query_cpu]); - apic_write(APIC_ICR2, cfg); - - /* - * program the ICR - */ - cfg = __prepare_ICR(0, vector, APIC_DEST_PHYSICAL); - - /* - * Send the IPI. The write to APIC_ICR fires this off. - */ - apic_write(APIC_ICR, cfg); + __send_IPI_dest_field(x86_cpu_to_apicid[query_cpu], + vector, APIC_DEST_PHYSICAL); } local_irq_restore(flags); } |