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authorAndy Lutomirski <luto@mit.edu>2011-07-13 09:24:13 -0400
committerH. Peter Anvin <hpa@linux.intel.com>2011-07-13 11:23:12 -0700
commit433bd805e5fd2c731b3a9025b034f066272d336e (patch)
tree3c319294f98d048146ba1b082241aee197c7d0cf /arch/x86/include/asm
parent7f79ad15f33cf4968cafb0e3d2beba427de01d3a (diff)
clocksource: Replace vread with generic arch data
The vread field was bloating struct clocksource everywhere except x86_64, and I want to change the way this works on x86_64, so let's split it out into per-arch data. Cc: x86@kernel.org Cc: Clemens Ladisch <clemens@ladisch.de> Cc: linux-ia64@vger.kernel.org Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: John Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andy Lutomirski <luto@mit.edu> Link: http://lkml.kernel.org/r/3ae5ec76a168eaaae63f08a2a1060b91aa0b7759.1310563276.git.luto@mit.edu Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/include/asm')
-rw-r--r--arch/x86/include/asm/clocksource.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/include/asm/clocksource.h b/arch/x86/include/asm/clocksource.h
new file mode 100644
index 000000000000..a5df33f614c9
--- /dev/null
+++ b/arch/x86/include/asm/clocksource.h
@@ -0,0 +1,16 @@
+/* x86-specific clocksource additions */
+
+#ifndef _ASM_X86_CLOCKSOURCE_H
+#define _ASM_X86_CLOCKSOURCE_H
+
+#ifdef CONFIG_X86_64
+
+#define __ARCH_HAS_CLOCKSOURCE_DATA
+
+struct arch_clocksource_data {
+ cycle_t (*vread)(void);
+};
+
+#endif /* CONFIG_X86_64 */
+
+#endif /* _ASM_X86_CLOCKSOURCE_H */

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