0429fbc0bd
Pull percpu consistent-ops changes from Tejun Heo: "Way back, before the current percpu allocator was implemented, static and dynamic percpu memory areas were allocated and handled separately and had their own accessors. The distinction has been gone for many years now; however, the now duplicate two sets of accessors remained with the pointer based ones - this_cpu_*() - evolving various other operations over time. During the process, we also accumulated other inconsistent operations. This pull request contains Christoph's patches to clean up the duplicate accessor situation. __get_cpu_var() uses are replaced with with this_cpu_ptr() and __this_cpu_ptr() with raw_cpu_ptr(). Unfortunately, the former sometimes is tricky thanks to C being a bit messy with the distinction between lvalues and pointers, which led to a rather ugly solution for cpumask_var_t involving the introduction of this_cpu_cpumask_var_ptr(). This converts most of the uses but not all. Christoph will follow up with the remaining conversions in this merge window and hopefully remove the obsolete accessors" * 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (38 commits) irqchip: Properly fetch the per cpu offset percpu: Resolve ambiguities in __get_cpu_var/cpumask_var_t -fix ia64: sn_nodepda cannot be assigned to after this_cpu conversion. Use __this_cpu_write. percpu: Resolve ambiguities in __get_cpu_var/cpumask_var_t Revert "powerpc: Replace __get_cpu_var uses" percpu: Remove __this_cpu_ptr clocksource: Replace __this_cpu_ptr with raw_cpu_ptr sparc: Replace __get_cpu_var uses avr32: Replace __get_cpu_var with __this_cpu_write blackfin: Replace __get_cpu_var uses tile: Use this_cpu_ptr() for hardware counters tile: Replace __get_cpu_var uses powerpc: Replace __get_cpu_var uses alpha: Replace __get_cpu_var ia64: Replace __get_cpu_var uses s390: cio driver &__get_cpu_var replacements s390: Replace __get_cpu_var uses mips: Replace __get_cpu_var uses MIPS: Replace __get_cpu_var uses in FPU emulator. arm: Replace __this_cpu_ptr with raw_cpu_ptr ...
111 lines
2.1 KiB
C
111 lines
2.1 KiB
C
#ifndef _ASM_IRQ_H
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#define _ASM_IRQ_H
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#define EXT_INTERRUPT 1
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#define IO_INTERRUPT 2
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#define THIN_INTERRUPT 3
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#define NR_IRQS_BASE 4
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#ifdef CONFIG_PCI_NR_MSI
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# define NR_IRQS (NR_IRQS_BASE + CONFIG_PCI_NR_MSI)
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#else
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# define NR_IRQS NR_IRQS_BASE
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#endif
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/* This number is used when no interrupt has been assigned */
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#define NO_IRQ 0
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/* External interruption codes */
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#define EXT_IRQ_INTERRUPT_KEY 0x0040
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#define EXT_IRQ_CLK_COMP 0x1004
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#define EXT_IRQ_CPU_TIMER 0x1005
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#define EXT_IRQ_WARNING_TRACK 0x1007
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#define EXT_IRQ_MALFUNC_ALERT 0x1200
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#define EXT_IRQ_EMERGENCY_SIG 0x1201
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#define EXT_IRQ_EXTERNAL_CALL 0x1202
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#define EXT_IRQ_TIMING_ALERT 0x1406
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#define EXT_IRQ_MEASURE_ALERT 0x1407
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#define EXT_IRQ_SERVICE_SIG 0x2401
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#define EXT_IRQ_CP_SERVICE 0x2603
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#define EXT_IRQ_IUCV 0x4000
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#ifndef __ASSEMBLY__
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#include <linux/hardirq.h>
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#include <linux/percpu.h>
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#include <linux/cache.h>
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#include <linux/types.h>
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enum interruption_class {
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IRQEXT_CLK,
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IRQEXT_EXC,
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IRQEXT_EMS,
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IRQEXT_TMR,
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IRQEXT_TLA,
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IRQEXT_PFL,
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IRQEXT_DSD,
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IRQEXT_VRT,
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IRQEXT_SCP,
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IRQEXT_IUC,
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IRQEXT_CMS,
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IRQEXT_CMC,
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IRQEXT_CMR,
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IRQEXT_FTP,
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IRQIO_CIO,
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IRQIO_QAI,
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IRQIO_DAS,
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IRQIO_C15,
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IRQIO_C70,
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IRQIO_TAP,
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IRQIO_VMR,
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IRQIO_LCS,
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IRQIO_CLW,
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IRQIO_CTC,
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IRQIO_APB,
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IRQIO_ADM,
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IRQIO_CSC,
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IRQIO_PCI,
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IRQIO_MSI,
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IRQIO_VIR,
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IRQIO_VAI,
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NMI_NMI,
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CPU_RST,
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NR_ARCH_IRQS
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};
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struct irq_stat {
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unsigned int irqs[NR_ARCH_IRQS];
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};
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DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
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static __always_inline void inc_irq_stat(enum interruption_class irq)
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{
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__this_cpu_inc(irq_stat.irqs[irq]);
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}
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struct ext_code {
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unsigned short subcode;
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unsigned short code;
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};
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typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long);
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int register_external_irq(u16 code, ext_int_handler_t handler);
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int unregister_external_irq(u16 code, ext_int_handler_t handler);
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enum irq_subclass {
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IRQ_SUBCLASS_MEASUREMENT_ALERT = 5,
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IRQ_SUBCLASS_SERVICE_SIGNAL = 9,
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};
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void irq_subclass_register(enum irq_subclass subclass);
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void irq_subclass_unregister(enum irq_subclass subclass);
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#define irq_canonicalize(irq) (irq)
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_IRQ_H */
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