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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-06 10:29:33 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-06 10:29:33 -0700
commitdadde13ad86bf45bc71f0663a6ce3dfe5dd4ecc5 (patch)
tree8dd0a19bc2fd65e05fe7678babbd9a95e53d727b /arch
parent23c1fb52961bc24bd3a8078eefc49eed533b2b38 (diff)
parent4b3e975e4a06f1710693c5aa51b8f98facfa9863 (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: [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
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/Kconfig.debug2
-rw-r--r--arch/mips/kernel/cpu-probe.c15
-rw-r--r--arch/mips/kernel/traps.c8
-rw-r--r--arch/mips/kernel/vpe.c4
-rw-r--r--arch/mips/lib/Makefile2
5 files changed, 19 insertions, 12 deletions
diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug
index 72d5c198e79..3efe117721a 100644
--- a/arch/mips/Kconfig.debug
+++ b/arch/mips/Kconfig.debug
@@ -37,7 +37,7 @@ config DEBUG_STACK_USAGE
This option will slow down process creation somewhat.
-config CONFIG_SMTC_IDLE_HOOK_DEBUG
+config SMTC_IDLE_HOOK_DEBUG
bool "Enable additional debug checks before going into CPU idle loop"
depends on DEBUG_KERNEL && MIPS_MT_SMTC
help
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 0fc90ba16ae..b12eeee0e97 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;
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index b1233644fcc..3ea7863c451 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1372,12 +1372,12 @@ void __init per_cpu_trap_init(void)
*/
if (cpu_has_mips_r2) {
cp0_compare_irq = (read_c0_intctl () >> 29) & 7;
- cp0_perfcount_irq = -1;
- } else {
- cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ;
cp0_perfcount_irq = (read_c0_intctl () >> 26) & 7;
- if (cp0_perfcount_irq != cp0_compare_irq)
+ if (cp0_perfcount_irq == cp0_compare_irq)
cp0_perfcount_irq = -1;
+ } else {
+ cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ;
+ cp0_perfcount_irq = -1;
}
#ifdef CONFIG_MIPS_MT_SMTC
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index c9ee9d2d585..9e66354dee8 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -1436,10 +1436,6 @@ static int __init vpe_module_init(void)
write_vpe_c0_vpecontrol(read_vpe_c0_vpecontrol() & ~VPECONTROL_TE);
if (i != 0) {
- write_vpe_c0_status((read_c0_status() &
- ~(ST0_IM | ST0_IE | ST0_KSU))
- | ST0_CU0);
-
/*
* Set config to be the same as vpe0,
* particularly kseg0 coherency alg
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile
index 5dad13efba7..1c1aa9f92f6 100644
--- a/arch/mips/lib/Makefile
+++ b/arch/mips/lib/Makefile
@@ -9,4 +9,4 @@ obj-y += iomap.o
obj-$(CONFIG_PCI) += iomap-pci.o
# libgcc-style stuff needed in the kernel
-lib-y += ashldi3.o ashrdi3.o lshrdi3.o ucmpdi2.o
+obj-y += ashldi3.o ashrdi3.o lshrdi3.o ucmpdi2.o