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author | Takashi Iwai <tiwai@suse.de> | 2017-09-04 14:50:49 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2017-09-04 14:50:49 +0200 |
commit | b06898d119f6b8dba7b318ad73558ce2d39161e8 (patch) | |
tree | df85bc0cd9047202faa6b02ee8ce706f155ba896 /arch/powerpc/kernel/smp.c | |
parent | b24a5f293058b512f1685930f2983a20ee3e15ab (diff) | |
parent | f5fd4a67bef5f2c5c2c9eb0cb2900e12d192ae23 (diff) | |
download | op-kernel-dev-b06898d119f6b8dba7b318ad73558ce2d39161e8.zip op-kernel-dev-b06898d119f6b8dba7b318ad73558ce2d39161e8.tar.gz |
Merge tag 'asoc-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v4.14
This is quite a large release by volume of patches and diff, a lot of
that is mechanical cleanup patches but it's great to also see a range of
vendors actively working on adding new features and fixing issues in
their drivers. Intel and Realtek have been especially active here.
- Continued work towards moving everything to the component model from
Morimoto-san.
- Use of devres for jack detection GPIOs, eliminating some potential
resource leaks.
- Jack detection support for Qualcomm MSM8916.
- Support for Allwinner H3, Cirrus Logic CS43130, Intel Kabylake
systems with RT5663, Realtek RT274, TI TLV320AIC32x6 and Wolfson
WM8523.
Diffstat (limited to 'arch/powerpc/kernel/smp.c')
-rw-r--r-- | arch/powerpc/kernel/smp.c | 18 |
1 files changed, 5 insertions, 13 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 997c88d..8d33205 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -351,7 +351,7 @@ static void nmi_ipi_lock_start(unsigned long *flags) hard_irq_disable(); while (atomic_cmpxchg(&__nmi_ipi_lock, 0, 1) == 1) { raw_local_irq_restore(*flags); - cpu_relax(); + spin_until_cond(atomic_read(&__nmi_ipi_lock) == 0); raw_local_irq_save(*flags); hard_irq_disable(); } @@ -360,7 +360,7 @@ static void nmi_ipi_lock_start(unsigned long *flags) static void nmi_ipi_lock(void) { while (atomic_cmpxchg(&__nmi_ipi_lock, 0, 1) == 1) - cpu_relax(); + spin_until_cond(atomic_read(&__nmi_ipi_lock) == 0); } static void nmi_ipi_unlock(void) @@ -475,7 +475,7 @@ int smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us) nmi_ipi_lock_start(&flags); while (nmi_ipi_busy_count) { nmi_ipi_unlock_end(&flags); - cpu_relax(); + spin_until_cond(nmi_ipi_busy_count == 0); nmi_ipi_lock_start(&flags); } @@ -1003,21 +1003,13 @@ static struct sched_domain_topology_level powerpc_topology[] = { { NULL, }, }; -static __init long smp_setup_cpu_workfn(void *data __always_unused) -{ - smp_ops->setup_cpu(boot_cpuid); - return 0; -} - void __init smp_cpus_done(unsigned int max_cpus) { /* - * We want the setup_cpu() here to be called on the boot CPU, but - * init might run on any CPU, so make sure it's invoked on the boot - * CPU. + * We are running pinned to the boot CPU, see rest_init(). */ if (smp_ops && smp_ops->setup_cpu) - work_on_cpu_safe(boot_cpuid, smp_setup_cpu_workfn, NULL); + smp_ops->setup_cpu(boot_cpuid); if (smp_ops && smp_ops->bringup_done) smp_ops->bringup_done(); |