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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/kernel/scall32-o32.S
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/kernel/scall32-o32.S')
-rw-r--r--arch/mips/kernel/scall32-o32.S72
1 files changed, 0 insertions, 72 deletions
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index b5708212353..7c2de4f091c 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -187,78 +187,6 @@ illegal_syscall:
j o32_syscall_exit
END(handle_sys)
- LEAF(mips_atomic_set)
- andi v0, a1, 3 # must be word aligned
- bnez v0, bad_alignment
-
- lw v1, TI_ADDR_LIMIT($28) # in legal address range?
- addiu a0, a1, 4
- or a0, a0, a1
- and a0, a0, v1
- bltz a0, bad_address
-
-#ifdef CONFIG_CPU_HAS_LLSC
- /* Ok, this is the ll/sc case. World is sane :-) */
-1: ll v0, (a1)
- move a0, a2
-2: sc a0, (a1)
-#if R10000_LLSC_WAR
- beqzl a0, 1b
-#else
- beqz a0, 1b
-#endif
-
- .section __ex_table,"a"
- PTR 1b, bad_stack
- PTR 2b, bad_stack
- .previous
-#else
- sw a1, 16(sp)
- sw a2, 20(sp)
-
- move a0, sp
- move a2, a1
- li a1, 1
- jal do_page_fault
-
- lw a1, 16(sp)
- lw a2, 20(sp)
-
- /*
- * At this point the page should be readable and writable unless
- * there was no more memory available.
- */
-1: lw v0, (a1)
-2: sw a2, (a1)
-
- .section __ex_table,"a"
- PTR 1b, no_mem
- PTR 2b, no_mem
- .previous
-#endif
-
- sw zero, PT_R7(sp) # success
- sw v0, PT_R2(sp) # result
-
- j o32_syscall_exit # continue like a normal syscall
-
-no_mem: li v0, -ENOMEM
- jr ra
-
-bad_address:
- li v0, -EFAULT
- jr ra
-
-bad_alignment:
- li v0, -EINVAL
- jr ra
- END(mips_atomic_set)
-
- LEAF(sys_sysmips)
- beq a0, MIPS_ATOMIC_SET, mips_atomic_set
- j _sys_sysmips
- END(sys_sysmips)
-
LEAF(sys_syscall)
subu t0, a0, __NR_O32_Linux # check syscall number
sltiu v0, t0, __NR_O32_Linux_syscalls + 1