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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 15:23:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 15:23:54 -0700
commit6969a434737dd82f7343e3fcd529bc320508d9fc (patch)
tree13d9982aa8fc5f5448ea678de2f1850d63802e79 /arch/mips/kernel
parent0fc377bd648d1935ea34665239e3f0a274b71698 (diff)
parent0453fb3c528c5eb3483441a466b24a4cb409eec5 (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: (25 commits) MIPS: Use GCC __builtin_prefetch() to implement prefetch(). MIPS: Octeon: Serial port fixes for OCTEON simulator. MIPS: Octeon: Get rid of early serial. MIPS: AR7: prevent race between clock initialization and devices registration MIPS: AR7: use ar7_has_high_vlynq() to determine watchdog base address MIPS: BCM63xx: Avoid namespace clash on GPIO_DIR_{IN,OUT} MIPS: MTX-1: Update defconfig MIPS: BCM47xx: Update defconfig MIPS: RB532: Update defconfig MIPS: AR7: Update defconfig RTC: rtc-cmos: Fix binary mode support MIPS: Oprofile: Loongson: Cleanup the comments MIPS: Oprofile: Loongson: Cleanup of the macros MIPS: Oprofile: Loongson: Remove unused variable from loongson2_cpu_setup() MIPS: Oprofile: Loongson: Remove useless parentheses MIPS: Oprofile: Loongson: Unify macro for setting events MIPS: nofpu and nodsp only affect CPU0 MIPS: Clean up tables for bootmem allocation MIPS: Coding style cleanups of access of FCSR rounding mode bits MIPS: Loongson 2F: Add gpio/gpioilb support ...
Diffstat (limited to 'arch/mips/kernel')
-rw-r--r--arch/mips/kernel/cpu-probe.c30
-rw-r--r--arch/mips/kernel/cpufreq/loongson2_cpufreq.c4
-rw-r--r--arch/mips/kernel/mips-mt-fpaff.c4
-rw-r--r--arch/mips/kernel/setup.c21
-rw-r--r--arch/mips/kernel/traps.c2
5 files changed, 35 insertions, 26 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index be5bb16be4e..3562b854f2c 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -125,6 +125,30 @@ static int __init wait_disable(char *s)
__setup("nowait", wait_disable);
+static int __cpuinitdata mips_fpu_disabled;
+
+static int __init fpu_disable(char *s)
+{
+ cpu_data[0].options &= ~MIPS_CPU_FPU;
+ mips_fpu_disabled = 1;
+
+ return 1;
+}
+
+__setup("nofpu", fpu_disable);
+
+int __cpuinitdata mips_dsp_disabled;
+
+static int __init dsp_disable(char *s)
+{
+ cpu_data[0].ases &= ~MIPS_ASE_DSP;
+ mips_dsp_disabled = 1;
+
+ return 1;
+}
+
+__setup("nodsp", dsp_disable);
+
void __init check_wait(void)
{
struct cpuinfo_mips *c = &current_cpu_data;
@@ -982,6 +1006,12 @@ __cpuinit void cpu_probe(void)
*/
BUG_ON(current_cpu_type() != c->cputype);
+ if (mips_fpu_disabled)
+ c->options &= ~MIPS_CPU_FPU;
+
+ if (mips_dsp_disabled)
+ c->ases &= ~MIPS_ASE_DSP;
+
if (c->options & MIPS_CPU_FPU) {
c->fpu_id = cpu_get_fpu_id();
diff --git a/arch/mips/kernel/cpufreq/loongson2_cpufreq.c b/arch/mips/kernel/cpufreq/loongson2_cpufreq.c
index 2f6a0b147ab..ae5db206347 100644
--- a/arch/mips/kernel/cpufreq/loongson2_cpufreq.c
+++ b/arch/mips/kernel/cpufreq/loongson2_cpufreq.c
@@ -65,7 +65,7 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
return -ENODEV;
cpus_allowed = current->cpus_allowed;
- set_cpus_allowed(current, cpumask_of_cpu(cpu));
+ set_cpus_allowed_ptr(current, cpumask_of(cpu));
if (cpufreq_frequency_table_target
(policy, &loongson2_clockmod_table[0], target_freq, relation,
@@ -91,7 +91,7 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
/* notifiers */
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
- set_cpus_allowed(current, cpus_allowed);
+ set_cpus_allowed_ptr(current, &cpus_allowed);
/* setting the cpu frequency */
clk_set_rate(cpuclk, freq);
diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c
index cbc6182b006..f5981c49910 100644
--- a/arch/mips/kernel/mips-mt-fpaff.c
+++ b/arch/mips/kernel/mips-mt-fpaff.c
@@ -100,10 +100,10 @@ asmlinkage long mipsmt_sys_sched_setaffinity(pid_t pid, unsigned int len,
if (test_ti_thread_flag(ti, TIF_FPUBOUND) &&
cpus_intersects(new_mask, mt_fpu_cpumask)) {
cpus_and(effective_mask, new_mask, mt_fpu_cpumask);
- retval = set_cpus_allowed(p, effective_mask);
+ retval = set_cpus_allowed_ptr(p, &effective_mask);
} else {
clear_ti_thread_flag(ti, TIF_FPUBOUND);
- retval = set_cpus_allowed(p, new_mask);
+ retval = set_cpus_allowed_ptr(p, &new_mask);
}
out_unlock:
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index f9513f9e61d..85aef3fc671 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -569,27 +569,6 @@ void __init setup_arch(char **cmdline_p)
plat_smp_setup();
}
-static int __init fpu_disable(char *s)
-{
- int i;
-
- for (i = 0; i < NR_CPUS; i++)
- cpu_data[i].options &= ~MIPS_CPU_FPU;
-
- return 1;
-}
-
-__setup("nofpu", fpu_disable);
-
-static int __init dsp_disable(char *s)
-{
- cpu_data[0].ases &= ~MIPS_ASE_DSP;
-
- return 1;
-}
-
-__setup("nodsp", dsp_disable);
-
unsigned long kernelsp[NR_CPUS];
unsigned long fw_arg0, fw_arg1, fw_arg2, fw_arg3;
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 950bde8813f..8bdd6a663c7 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -867,7 +867,7 @@ static void mt_ase_fp_affinity(void)
= current->cpus_allowed;
cpus_and(tmask, current->cpus_allowed,
mt_fpu_cpumask);
- set_cpus_allowed(current, tmask);
+ set_cpus_allowed_ptr(current, &tmask);
set_thread_flag(TIF_FPUBOUND);
}
}