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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-19 13:47:57 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-19 13:47:57 +0100 |
| commit | 40d743b8c16a8cf6e30c1d941aa6147f9550ea75 (patch) | |
| tree | 9fcdf9a06b18a275253048d1ea7c9803cec38845 /arch/mips/kernel/scall32-o32.S | |
| parent | 7da18afa423f167e7ef3c9728e584d8bf05bd55a (diff) | |
| parent | 83e686ea0291ee93b87dcdc00b96443b80de56c9 (diff) | |
Merge branch 'for-rmk' of git://linux-arm.org/linux-2.6
Diffstat (limited to 'arch/mips/kernel/scall32-o32.S')
| -rw-r--r-- | arch/mips/kernel/scall32-o32.S | 72 |
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 |