diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2009-09-17 02:25:05 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-09-17 20:07:49 +0200 |
| commit | f4c6b6bc5a4fc8d607f2d89369008c85a3a12a8b (patch) | |
| tree | bfcde115df6f7712b3c3356d608ae3a29c01a7c9 /arch/mips | |
| parent | 6eb10bc9e2deab06630261cd05c4cb1e9a60e980 (diff) | |
MIPS: Consolidate all CONFIG_CPU_HAS_LLSC use in a single C file.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/system.h | 12 | ||||
| -rw-r--r-- | arch/mips/kernel/octeon_switch.S | 3 | ||||
| -rw-r--r-- | arch/mips/kernel/r2300_switch.S | 3 | ||||
| -rw-r--r-- | arch/mips/kernel/r4k_switch.S | 3 |
4 files changed, 12 insertions, 9 deletions
diff --git a/arch/mips/include/asm/system.h b/arch/mips/include/asm/system.h index cd30f83235b..a2e9239b45a 100644 --- a/arch/mips/include/asm/system.h +++ b/arch/mips/include/asm/system.h @@ -63,11 +63,23 @@ do { \ #define __mips_mt_fpaff_switch_to(prev) do { (void) (prev); } while (0) #endif +#ifdef CONFIG_CPU_HAS_LLSC +#define __clear_software_ll_bit() do { } while (0) +#else +extern unsigned long ll_bit; + +#define __clear_software_ll_bit() \ +do { \ + ll_bit = 0; \ +} while (0) +#endif + #define switch_to(prev, next, last) \ do { \ __mips_mt_fpaff_switch_to(prev); \ if (cpu_has_dsp) \ __save_dsp(prev); \ + __clear_software_ll_bit(); \ (last) = resume(prev, next, task_thread_info(next)); \ } while (0) diff --git a/arch/mips/kernel/octeon_switch.S b/arch/mips/kernel/octeon_switch.S index d52389672b0..3952b8323ef 100644 --- a/arch/mips/kernel/octeon_switch.S +++ b/arch/mips/kernel/octeon_switch.S @@ -36,9 +36,6 @@ .align 7 LEAF(resume) .set arch=octeon -#ifndef CONFIG_CPU_HAS_LLSC - sw zero, ll_bit -#endif mfc0 t1, CP0_STATUS LONG_S t1, THREAD_STATUS(a0) cpu_save_nonscratch a0 diff --git a/arch/mips/kernel/r2300_switch.S b/arch/mips/kernel/r2300_switch.S index 656bde2e11b..698414b7a25 100644 --- a/arch/mips/kernel/r2300_switch.S +++ b/arch/mips/kernel/r2300_switch.S @@ -46,9 +46,6 @@ * struct thread_info *next_ti) ) */ LEAF(resume) -#ifndef CONFIG_CPU_HAS_LLSC - sw zero, ll_bit -#endif mfc0 t1, CP0_STATUS sw t1, THREAD_STATUS(a0) cpu_save_nonscratch a0 diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S index d9bfae53c43..8893ee1a236 100644 --- a/arch/mips/kernel/r4k_switch.S +++ b/arch/mips/kernel/r4k_switch.S @@ -45,9 +45,6 @@ */ .align 5 LEAF(resume) -#ifndef CONFIG_CPU_HAS_LLSC - sw zero, ll_bit -#endif mfc0 t1, CP0_STATUS LONG_S t1, THREAD_STATUS(a0) cpu_save_nonscratch a0 |