diff options
author | Ingo Molnar <mingo@kernel.org> | 2015-08-31 10:25:26 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2015-08-31 10:25:26 +0200 |
commit | 02b643b643254ec79b5f9aaa143e10be68eabdab (patch) | |
tree | 57ec83eebab74324465199a3f52f4f7862177ee6 /arch | |
parent | d1ee8bc195ffedbf91af0245a2406d6ebd2578f8 (diff) | |
parent | 4c09e0d6ba65507a0ee0ca9abc5335e4f7bd7404 (diff) | |
download | linux-02b643b643254ec79b5f9aaa143e10be68eabdab.tar.bz2 |
Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/Makefile | 3 | ||||
-rw-r--r-- | arch/arm/lib/uaccess_with_memcpy.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/omap-wakeupgen.c | 1 | ||||
-rw-r--r-- | arch/arm64/kvm/inject_fault.c | 12 | ||||
-rw-r--r-- | arch/mips/kernel/genex.S | 2 | ||||
-rw-r--r-- | arch/powerpc/kernel/pci_of_scan.c | 3 | ||||
-rw-r--r-- | arch/x86/include/asm/switch_to.h | 12 | ||||
-rw-r--r-- | arch/x86/kernel/apic/apic.c | 14 | ||||
-rw-r--r-- | arch/x86/kernel/apic/vector.c | 2 | ||||
-rw-r--r-- | arch/x86/kernel/fpu/core.c | 2 | ||||
-rw-r--r-- | arch/x86/kernel/fpu/init.c | 7 | ||||
-rw-r--r-- | arch/x86/kernel/process.c | 2 | ||||
-rw-r--r-- | arch/x86/xen/Kconfig | 4 |
13 files changed, 38 insertions, 28 deletions
diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 07ab3d203916..7451b447cc2d 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -312,6 +312,9 @@ INSTALL_TARGETS = zinstall uinstall install PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS) +bootpImage uImage: zImage +zImage: Image + $(BOOT_TARGETS): vmlinux $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c index 3e58d710013c..4b39af2dfda9 100644 --- a/arch/arm/lib/uaccess_with_memcpy.c +++ b/arch/arm/lib/uaccess_with_memcpy.c @@ -96,7 +96,7 @@ __copy_to_user_memcpy(void __user *to, const void *from, unsigned long n) } /* the mmap semaphore is taken only if not in an atomic context */ - atomic = in_atomic(); + atomic = faulthandler_disabled(); if (!atomic) down_read(¤t->mm->mmap_sem); diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c index 8e52621b5a6b..e1d2e991d17a 100644 --- a/arch/arm/mach-omap2/omap-wakeupgen.c +++ b/arch/arm/mach-omap2/omap-wakeupgen.c @@ -392,6 +392,7 @@ static struct irq_chip wakeupgen_chip = { .irq_mask = wakeupgen_mask, .irq_unmask = wakeupgen_unmask, .irq_retrigger = irq_chip_retrigger_hierarchy, + .irq_set_type = irq_chip_set_type_parent, .flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND, #ifdef CONFIG_SMP .irq_set_affinity = irq_chip_set_affinity_parent, diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c index f02530e726f6..85c57158dcd9 100644 --- a/arch/arm64/kvm/inject_fault.c +++ b/arch/arm64/kvm/inject_fault.c @@ -168,8 +168,8 @@ void kvm_inject_dabt(struct kvm_vcpu *vcpu, unsigned long addr) { if (!(vcpu->arch.hcr_el2 & HCR_RW)) inject_abt32(vcpu, false, addr); - - inject_abt64(vcpu, false, addr); + else + inject_abt64(vcpu, false, addr); } /** @@ -184,8 +184,8 @@ void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr) { if (!(vcpu->arch.hcr_el2 & HCR_RW)) inject_abt32(vcpu, true, addr); - - inject_abt64(vcpu, true, addr); + else + inject_abt64(vcpu, true, addr); } /** @@ -198,6 +198,6 @@ void kvm_inject_undefined(struct kvm_vcpu *vcpu) { if (!(vcpu->arch.hcr_el2 & HCR_RW)) inject_undef32(vcpu); - - inject_undef64(vcpu); + else + inject_undef64(vcpu); } diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S index af42e7003f12..baa7b6fc0a60 100644 --- a/arch/mips/kernel/genex.S +++ b/arch/mips/kernel/genex.S @@ -407,7 +407,7 @@ NESTED(nmi_handler, PT_SIZE, sp) .set noat SAVE_ALL FEXPORT(handle_\exception\ext) - __BUILD_clear_\clear + __build_clear_\clear .set at __BUILD_\verbose \exception move a0, sp diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c index 42e02a2d570b..efc3fa54c90b 100644 --- a/arch/powerpc/kernel/pci_of_scan.c +++ b/arch/powerpc/kernel/pci_of_scan.c @@ -191,6 +191,9 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, pci_device_add(dev, bus); + /* Setup MSI caps & disable MSI/MSI-X interrupts */ + pci_msi_setup_pci_dev(dev); + return dev; } EXPORT_SYMBOL(of_create_pci_dev); diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h index 751bf4b7bf11..d7f3b3b78ac3 100644 --- a/arch/x86/include/asm/switch_to.h +++ b/arch/x86/include/asm/switch_to.h @@ -79,12 +79,12 @@ do { \ #else /* CONFIG_X86_32 */ /* frame pointer must be last for get_wchan */ -#define SAVE_CONTEXT "pushq %%rbp ; movq %%rsi,%%rbp\n\t" -#define RESTORE_CONTEXT "movq %%rbp,%%rsi ; popq %%rbp\t" +#define SAVE_CONTEXT "pushf ; pushq %%rbp ; movq %%rsi,%%rbp\n\t" +#define RESTORE_CONTEXT "movq %%rbp,%%rsi ; popq %%rbp ; popf\t" #define __EXTRA_CLOBBER \ , "rcx", "rbx", "rdx", "r8", "r9", "r10", "r11", \ - "r12", "r13", "r14", "r15", "flags" + "r12", "r13", "r14", "r15" #ifdef CONFIG_CC_STACKPROTECTOR #define __switch_canary \ @@ -100,11 +100,7 @@ do { \ #define __switch_canary_iparam #endif /* CC_STACKPROTECTOR */ -/* - * There is no need to save or restore flags, because flags are always - * clean in kernel mode, with the possible exception of IOPL. Kernel IOPL - * has no effect. - */ +/* Save restore flags to clear handle leaking NT */ #define switch_to(prev, next, last) \ asm volatile(SAVE_CONTEXT \ "movq %%rsp,%P[threadrsp](%[prev])\n\t" /* save RSP */ \ diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index dcb52850a28f..cde732c1b495 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -1424,7 +1424,7 @@ static inline void __x2apic_disable(void) { u64 msr; - if (cpu_has_apic) + if (!cpu_has_apic) return; rdmsrl(MSR_IA32_APICBASE, msr); @@ -1483,10 +1483,13 @@ void x2apic_setup(void) static __init void x2apic_disable(void) { - u32 x2apic_id; + u32 x2apic_id, state = x2apic_state; - if (x2apic_state != X2APIC_ON) - goto out; + x2apic_mode = 0; + x2apic_state = X2APIC_DISABLED; + + if (state != X2APIC_ON) + return; x2apic_id = read_apic_id(); if (x2apic_id >= 255) @@ -1494,9 +1497,6 @@ static __init void x2apic_disable(void) __x2apic_disable(); register_lapic_address(mp_lapic_addr); -out: - x2apic_state = X2APIC_DISABLED; - x2apic_mode = 0; } static __init void x2apic_enable(void) diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index f813261d9740..2683f36e4e0a 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -322,7 +322,7 @@ static int x86_vector_alloc_irqs(struct irq_domain *domain, unsigned int virq, irq_data->chip = &lapic_controller; irq_data->chip_data = data; irq_data->hwirq = virq + i; - err = assign_irq_vector_policy(virq, irq_data->node, data, + err = assign_irq_vector_policy(virq + i, irq_data->node, data, info); if (err) goto error; diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c index 79de954626fd..d25097c3fc1d 100644 --- a/arch/x86/kernel/fpu/core.c +++ b/arch/x86/kernel/fpu/core.c @@ -270,7 +270,7 @@ int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu) dst_fpu->fpregs_active = 0; dst_fpu->last_cpu = -1; - if (src_fpu->fpstate_active) + if (src_fpu->fpstate_active && cpu_has_fpu) fpu_copy(dst_fpu, src_fpu); return 0; diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c index 1e173f6285c7..d14e9ac3235a 100644 --- a/arch/x86/kernel/fpu/init.c +++ b/arch/x86/kernel/fpu/init.c @@ -40,7 +40,12 @@ static void fpu__init_cpu_generic(void) write_cr0(cr0); /* Flush out any pending x87 state: */ - asm volatile ("fninit"); +#ifdef CONFIG_MATH_EMULATION + if (!cpu_has_fpu) + fpstate_init_soft(¤t->thread.fpu.state.soft); + else +#endif + asm volatile ("fninit"); } /* diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 397688beed4b..c27cad726765 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -408,6 +408,7 @@ static int prefer_mwait_c1_over_halt(const struct cpuinfo_x86 *c) static void mwait_idle(void) { if (!current_set_polling_and_test()) { + trace_cpu_idle_rcuidle(1, smp_processor_id()); if (this_cpu_has(X86_BUG_CLFLUSH_MONITOR)) { smp_mb(); /* quirk */ clflush((void *)¤t_thread_info()->flags); @@ -419,6 +420,7 @@ static void mwait_idle(void) __sti_mwait(0, 0); else local_irq_enable(); + trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, smp_processor_id()); } else { local_irq_enable(); } diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig index e88fda867a33..484145368a24 100644 --- a/arch/x86/xen/Kconfig +++ b/arch/x86/xen/Kconfig @@ -8,7 +8,7 @@ config XEN select PARAVIRT_CLOCK select XEN_HAVE_PVMMU depends on X86_64 || (X86_32 && X86_PAE) - depends on X86_TSC + depends on X86_LOCAL_APIC && X86_TSC help This is the Linux Xen port. Enabling this will allow the kernel to boot in a paravirtualized environment under the @@ -17,7 +17,7 @@ config XEN config XEN_DOM0 def_bool y depends on XEN && PCI_XEN && SWIOTLB_XEN - depends on X86_LOCAL_APIC && X86_IO_APIC && ACPI && PCI + depends on X86_IO_APIC && ACPI && PCI config XEN_PVHVM def_bool y |