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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-17 20:52:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-17 20:52:32 -0700
commit3dc95666df0e1ae5b7381a8ec97a583bb3ce4306 (patch)
treefc1b277f507c48b8c29536947e1de5c2eeda9325 /arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
parentb938fb6f491113880ebaabfa06c6446723c702fd (diff)
parent9b1fc55a05006523bced65f4d99f7072831ff56a (diff)
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (51 commits) MIPS: BCM63xx: Add integrated ethernet mac support. MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs. MIPS: BCM63xx: Add Broadcom 63xx CPU definitions. MIPS: Octeon: Move some platform device registration to its own file. MIPS: Don't corrupt page tables on vmalloc fault. MIPS: Shrink the size of tlb handler MIPS: Alchemy: override loops_per_jiffy detection MIPS: hw_random: Add hardware RNG for Octeon SOCs. MIPS: Octeon: Add hardware RNG platform device. MIPS: Remove useless zero initializations. MIPS: Alchemy: get rid of allow_au1k_wait MIPS: Octeon: Set kernel_uses_llsc to false on non-SMP builds. MIPS: Allow kernel use of LL/SC to be separate from the presence of LL/SC. MIPS: Get rid of CONFIG_CPU_HAS_LLSC MIPS: Malta: Remove pointless use use of CONFIG_CPU_HAS_LLSC MIPS: Rewrite clearing of ll_bit on context switch in C MIPS: Rewrite sysmips(MIPS_ATOMIC_SET, ...) in C with inline assembler MIPS: Consolidate all CONFIG_CPU_HAS_LLSC use in a single C file. MIPS: Clean up linker script using new linker script macros. MIPS: Use PAGE_SIZE in assembly instead of _PAGE_SIZE. ...
Diffstat (limited to 'arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h')
-rw-r--r--arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h12
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
index 3d830756b13..425e708d4fb 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
@@ -31,12 +31,16 @@
#define cpu_has_cache_cdex_s 0
#define cpu_has_prefetch 1
+#define cpu_has_llsc 1
/*
- * We should disable LL/SC on non SMP systems as it is faster to
- * disable interrupts for atomic access than a LL/SC. Unfortunatly we
- * cannot as this breaks asm/futex.h
+ * We Disable LL/SC on non SMP systems as it is faster to disable
+ * interrupts for atomic access than a LL/SC.
*/
-#define cpu_has_llsc 1
+#ifdef CONFIG_SMP
+# define kernel_uses_llsc 1
+#else
+# define kernel_uses_llsc 0
+#endif
#define cpu_has_vtag_icache 1
#define cpu_has_dc_aliases 0
#define cpu_has_ic_fills_f_dc 0