Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] Fix scheduling latency issue on 24K, 34K and 74K cores
  [MIPS] Add macros to encode processor revisions.
  [MIPS] RM7000: Enable ICACHE_REFILLS_WORKAROUND_WAR.
  [MIPS] SMTC: Fix cut'n'paste bug in Kconfig.debug
  [MIPS] Change libgcc-style functions from lib-y to obj-y
  [MIPS] Fix timer/performance interrupt detection
  [MIPS] AP/SP: Avoid triggering the 34K E125 performance issue
  [MIPS] 64-bit TO_PHYS_MASK macro for RM9000 processors

1 files changed, 13 insertions, 2 deletions

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 0fc90ba16ae1..b12eeee0e974 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -137,13 +137,24 @@ static inline void check_wait(void)
         case CPU_4KEC:
         case CPU_4KSC:
         case CPU_5KC:
-        case CPU_24K:
         case CPU_25KF:
+        case CPU_PR4450:
+                cpu_wait = r4k_wait;
+                break;
+
+        case CPU_24K:
         case CPU_34K:
+                cpu_wait = r4k_wait;
+                if (read_c0_config7() & MIPS_CONF7_WII)
+                        cpu_wait = r4k_wait_irqoff;
+                break;
+
         case CPU_74K:
-        case CPU_PR4450:
                 cpu_wait = r4k_wait;
+                if ((c->processor_id & 0xff) >= PRID_REV_ENCODE_332(2, 1, 0))
+                        cpu_wait = r4k_wait_irqoff;
                 break;
+
         case CPU_TX49XX:
                 cpu_wait = r4k_wait_irqoff;
                 break;