diff options
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
-rw-r--r-- | arch/mips/kernel/cpu-probe.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 11c92dc53791..0cf15457ecac 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c | |||
@@ -21,6 +21,7 @@ | |||
21 | #include <asm/fpu.h> | 21 | #include <asm/fpu.h> |
22 | #include <asm/mipsregs.h> | 22 | #include <asm/mipsregs.h> |
23 | #include <asm/system.h> | 23 | #include <asm/system.h> |
24 | #include <asm/watch.h> | ||
24 | 25 | ||
25 | /* | 26 | /* |
26 | * Not all of the MIPS CPUs have the "wait" instruction available. Moreover, | 27 | * Not all of the MIPS CPUs have the "wait" instruction available. Moreover, |
@@ -54,14 +55,18 @@ extern void r4k_wait(void); | |||
54 | * interrupt is requested" restriction in the MIPS32/MIPS64 architecture makes | 55 | * interrupt is requested" restriction in the MIPS32/MIPS64 architecture makes |
55 | * using this version a gamble. | 56 | * using this version a gamble. |
56 | */ | 57 | */ |
57 | static void r4k_wait_irqoff(void) | 58 | void r4k_wait_irqoff(void) |
58 | { | 59 | { |
59 | local_irq_disable(); | 60 | local_irq_disable(); |
60 | if (!need_resched()) | 61 | if (!need_resched()) |
61 | __asm__(" .set mips3 \n" | 62 | __asm__(" .set push \n" |
63 | " .set mips3 \n" | ||
62 | " wait \n" | 64 | " wait \n" |
63 | " .set mips0 \n"); | 65 | " .set pop \n"); |
64 | local_irq_enable(); | 66 | local_irq_enable(); |
67 | __asm__(" .globl __pastwait \n" | ||
68 | "__pastwait: \n"); | ||
69 | return; | ||
65 | } | 70 | } |
66 | 71 | ||
67 | /* | 72 | /* |
@@ -673,6 +678,7 @@ static inline void spram_config(void) {} | |||
673 | static inline void cpu_probe_mips(struct cpuinfo_mips *c) | 678 | static inline void cpu_probe_mips(struct cpuinfo_mips *c) |
674 | { | 679 | { |
675 | decode_configs(c); | 680 | decode_configs(c); |
681 | mips_probe_watch_registers(c); | ||
676 | switch (c->processor_id & 0xff00) { | 682 | switch (c->processor_id & 0xff00) { |
677 | case PRID_IMP_4KC: | 683 | case PRID_IMP_4KC: |
678 | c->cputype = CPU_4KC; | 684 | c->cputype = CPU_4KC; |