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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-21 21:32:01 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-21 21:32:01 +0400 |
commit | 9daeaa370526df1c19eba4780247bb7155541e38 (patch) | |
tree | 5ae2601c26e280e81d753c1fe65453a3b8b1d2a0 /arch/sparc/include/asm/smpprim.h | |
parent | cb62ab71fe2b16e8203a0f0a2ef4eda23d761338 (diff) | |
parent | 1edc17832d8f49a0263d364c453ea35da0e4e2a6 (diff) | |
download | linux-9daeaa370526df1c19eba4780247bb7155541e38.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc updates from David Miller:
1) Kill off support for sun4c and Cypress sun4m chips.
And as a result we were able to also kill off that ugly btfixup thing
that required multi-stage links of the final vmlinux image in the
Kbuild system. This should make the kbuild maintainers really happy.
Thanks a lot to Sam Ravnborg for his tireless efforts to get this
going.
2) Convert sparc64 to nobootmem. I suspect now with sparc32 being a lot
cleaner, it should be able to fall in line and modernize in this area
too.
3) Make sparc32 use generic clockevents, from Tkhai Kirill.
[ I fixed up the BPF rules, and tried to clean up the build rules too.
But I don't have - or want - a sparc cross-build environment, so the
BPF rule bug and the related build cleanup was all done with just a
bare "make -n" pseudo-test. - Linus ]
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (110 commits)
sparc32: use flushi when run-time patching in per_cpu_patch
sparc32: fix cpuid_patch run-time patching
sparc32: drop unused inline functions in srmmu.c
sparc32: drop unused functions in pgtsrmmu.h
sparc32,leon: move leon mmu functions to leon_mm.c
sparc32,leon: remove duplicate definitions in leon.h
sparc32,leon: remove duplicate UART register definitions
sparc32,leon: move leon ASI definitions to asi.h
sparc32: move trap table to a separate file
sparc64: renamed ttable.S to ttable_64.S
sparc32: Remove asm/sysen.h header.
sparc32: Delete asm/smpprim.h
sparc32: Remove unused empty_bad_page{,_table} declarations.
sparc32: Kill boot_cpu_id4
sparc32: Move GET_PROCESSOR*_ID() out of asm/asmmacro.h
sparc32: Remove completely unused code from asm/cache.h
sparc32: Add ucmpdi2.o to obj-y instead of lib-y.
sparc32: add ucmpdi2
sparc: introduce arch/sparc/Kbuild
sparc: remove obsolete documentation
...
Diffstat (limited to 'arch/sparc/include/asm/smpprim.h')
-rw-r--r-- | arch/sparc/include/asm/smpprim.h | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/arch/sparc/include/asm/smpprim.h b/arch/sparc/include/asm/smpprim.h deleted file mode 100644 index eb849d862c64..000000000000 --- a/arch/sparc/include/asm/smpprim.h +++ /dev/null @@ -1,54 +0,0 @@ -/* - * smpprim.h: SMP locking primitives on the Sparc - * - * God knows we won't be actually using this code for some time - * but I thought I'd write it since I knew how. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef __SPARC_SMPPRIM_H -#define __SPARC_SMPPRIM_H - -/* Test and set the unsigned byte at ADDR to 1. Returns the previous - * value. On the Sparc we use the ldstub instruction since it is - * atomic. - */ - -static inline __volatile__ char test_and_set(void *addr) -{ - char state = 0; - - __asm__ __volatile__("ldstub [%0], %1 ! test_and_set\n\t" - "=r" (addr), "=r" (state) : - "0" (addr), "1" (state) : "memory"); - - return state; -} - -/* Initialize a spin-lock. */ -static inline __volatile__ smp_initlock(void *spinlock) -{ - /* Unset the lock. */ - *((unsigned char *) spinlock) = 0; - - return; -} - -/* This routine spins until it acquires the lock at ADDR. */ -static inline __volatile__ smp_lock(void *addr) -{ - while(test_and_set(addr) == 0xff) - ; - - /* We now have the lock */ - return; -} - -/* This routine releases the lock at ADDR. */ -static inline __volatile__ smp_unlock(void *addr) -{ - *((unsigned char *) addr) = 0; -} - -#endif /* !(__SPARC_SMPPRIM_H) */ |