Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | [PATCH 04/29] tsx: Add generic linux/elide.h macros | Date | Fri, 22 Mar 2013 18:24:58 -0700 |
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From: Andi Kleen <ak@linux.intel.com>
For lock elision we (mostly) use generic elide() macros that can be added to the lock code with minimal intrusion. Add a generic version that does nothing and is used when RTM is not available.
Signed-off-by: Andi Kleen <ak@linux.intel.com> --- include/linux/elide.h | 18 ++++++++++++++++++ 1 files changed, 18 insertions(+), 0 deletions(-) create mode 100644 include/linux/elide.h
diff --git a/include/linux/elide.h b/include/linux/elide.h new file mode 100644 index 0000000..95b3ec2 --- /dev/null +++ b/include/linux/elide.h @@ -0,0 +1,18 @@ +#ifndef _LINUX_ELIDE_H +#define _LINUX_ELIDE_H 1 + +#include <linux/rtm.h> + +#ifdef CONFIG_RTM_LOCKS +#include <asm/elide.h> +#else +#define elide_lock(l, f) 0 +#define elide_lock_adapt(f, l, a, ac) 0 +#define elide_unlock(l) 0 +#define elide_abort() do {} while (0) +struct elision_config {}; +#define DEFAULT_ELISION_CONFIG {} +#define TUNE_ELISION_CONFIG(a, b) +#endif + +#endif -- 1.7.7.6
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