Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | [PATCH 05/29] x86, tsx: Add a minimal RTM tester at bootup | Date | Fri, 22 Mar 2013 18:24:59 -0700 |
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From: Andi Kleen <ak@linux.intel.com>
May be removed later, but useful for basic sanity checking.
Signed-off-by: Andi Kleen <ak@linux.intel.com> --- arch/x86/kernel/Makefile | 2 ++ arch/x86/kernel/rtm-test.c | 22 ++++++++++++++++++++++ 2 files changed, 24 insertions(+), 0 deletions(-) create mode 100644 arch/x86/kernel/rtm-test.c
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 7bd3bd3..f46aebd 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -114,3 +114,5 @@ ifeq ($(CONFIG_X86_64),y) obj-$(CONFIG_PCI_MMCONFIG) += mmconf-fam10h_64.o obj-y += vsmp_64.o endif + +obj-y += rtm-test.o diff --git a/arch/x86/kernel/rtm-test.c b/arch/x86/kernel/rtm-test.c new file mode 100644 index 0000000..5e138c1 --- /dev/null +++ b/arch/x86/kernel/rtm-test.c @@ -0,0 +1,22 @@ +#include <asm/rtm.h> +#include <linux/init.h> +#include <linux/kernel.h> + +int x; + +static __init int rtm_test(void) +{ + unsigned status; + + pr_info("simple rtm test\n"); + if ((status = _xbegin()) == _XBEGIN_STARTED) { + x++; + _xend(); + pr_info("transaction committed\n"); + } else { + pr_info("transaction aborted %x\n", status); + } + return 0; +} + +device_initcall(rtm_test); -- 1.7.7.6
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