diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/i386/oprofile/init.c |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/i386/oprofile/init.c')
-rw-r--r-- | arch/i386/oprofile/init.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/i386/oprofile/init.c b/arch/i386/oprofile/init.c new file mode 100644 index 00000000000..c90332de582 --- /dev/null +++ b/arch/i386/oprofile/init.c @@ -0,0 +1,48 @@ +/** + * @file init.c + * + * @remark Copyright 2002 OProfile authors + * @remark Read the file COPYING + * + * @author John Levon <levon@movementarian.org> + */ + +#include <linux/oprofile.h> +#include <linux/init.h> +#include <linux/errno.h> + +/* We support CPUs that have performance counters like the Pentium Pro + * with the NMI mode driver. + */ + +extern int nmi_init(struct oprofile_operations * ops); +extern int nmi_timer_init(struct oprofile_operations * ops); +extern void nmi_exit(void); +extern void x86_backtrace(struct pt_regs * const regs, unsigned int depth); + + +int __init oprofile_arch_init(struct oprofile_operations * ops) +{ + int ret; + + ret = -ENODEV; + +#ifdef CONFIG_X86_LOCAL_APIC + ret = nmi_init(ops); +#endif +#ifdef CONFIG_X86_IO_APIC + if (ret < 0) + ret = nmi_timer_init(ops); +#endif + ops->backtrace = x86_backtrace; + + return ret; +} + + +void oprofile_arch_exit(void) +{ +#ifdef CONFIG_X86_LOCAL_APIC + nmi_exit(); +#endif +} |