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authorThomas Renninger <trenn@suse.de>2012-01-26 03:09:14 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2012-01-27 04:49:08 +0400
commitfad12ac8c8c2591c7f4e61d19b6a9d76cd49fafa (patch)
treee2a77737265a193bbec7ecfd08f4989931a0ba89 /include/linux/cpu.h
parent78ff123b05fb15beb1ad670372eea0d299d0b8af (diff)
downloadlinux-fad12ac8c8c2591c7f4e61d19b6a9d76cd49fafa.tar.xz
CPU: Introduce ARCH_HAS_CPU_AUTOPROBE and X86 parts
This patch is based on Andi Kleen's work: Implement autoprobing/loading of modules serving CPU specific features (x86cpu autoloading). And Kay Siever's work to get rid of sysdev cpu structures and making use of struct device instead. Before, the cpuid driver had to be loaded to get the x86cpu autoloading feature. With this patch autoloading works through the /sys/devices/system/cpu object Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Dave Jones <davej@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Huang Ying <ying.huang@intel.com> Cc: Len Brown <lenb@kernel.org> Acked-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Thomas Renninger <trenn@suse.de> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/cpu.h')
-rw-r--r--include/linux/cpu.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 1f6587590a1a..6e53b4823d7f 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -44,6 +44,13 @@ extern ssize_t arch_cpu_release(const char *, size_t);
#endif
struct notifier_block;
+#ifdef CONFIG_ARCH_HAS_CPU_AUTOPROBE
+extern int arch_cpu_uevent(struct device *dev, struct kobj_uevent_env *env);
+extern ssize_t arch_print_cpu_modalias(struct device *dev,
+ struct device_attribute *attr,
+ char *bufptr);
+#endif
+
/*
* CPU notifier priorities.
*/