diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/include/asm/xics.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/powerpc/include/asm/xics.h | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/include/asm/xics.h b/ANDROID_3.4.5/arch/powerpc/include/asm/xics.h deleted file mode 100644 index 4ae9a09c..00000000 --- a/ANDROID_3.4.5/arch/powerpc/include/asm/xics.h +++ /dev/null @@ -1,161 +0,0 @@ -/* - * Common definitions accross all variants of ICP and ICS interrupt - * controllers. - */ - -#ifndef _XICS_H -#define _XICS_H - -#include <linux/interrupt.h> - -#define XICS_IPI 2 -#define XICS_IRQ_SPURIOUS 0 - -/* Want a priority other than 0. Various HW issues require this. */ -#define DEFAULT_PRIORITY 5 - -/* - * Mark IPIs as higher priority so we can take them inside interrupts - * FIXME: still true now? - */ -#define IPI_PRIORITY 4 - -/* The least favored priority */ -#define LOWEST_PRIORITY 0xFF - -/* The number of priorities defined above */ -#define MAX_NUM_PRIORITIES 3 - -/* Native ICP */ -#ifdef CONFIG_PPC_ICP_NATIVE -extern int icp_native_init(void); -#else -static inline int icp_native_init(void) { return -ENODEV; } -#endif - -/* PAPR ICP */ -#ifdef CONFIG_PPC_ICP_HV -extern int icp_hv_init(void); -#else -static inline int icp_hv_init(void) { return -ENODEV; } -#endif - -/* ICP ops */ -struct icp_ops { - unsigned int (*get_irq)(void); - void (*eoi)(struct irq_data *d); - void (*set_priority)(unsigned char prio); - void (*teardown_cpu)(void); - void (*flush_ipi)(void); -#ifdef CONFIG_SMP - void (*cause_ipi)(int cpu, unsigned long data); - irq_handler_t ipi_action; -#endif -}; - -extern const struct icp_ops *icp_ops; - -/* Native ICS */ -extern int ics_native_init(void); - -/* RTAS ICS */ -#ifdef CONFIG_PPC_ICS_RTAS -extern int ics_rtas_init(void); -#else -static inline int ics_rtas_init(void) { return -ENODEV; } -#endif - -/* HAL ICS */ -#ifdef CONFIG_PPC_POWERNV -extern int ics_opal_init(void); -#else -static inline int ics_opal_init(void) { return -ENODEV; } -#endif - -/* ICS instance, hooked up to chip_data of an irq */ -struct ics { - struct list_head link; - int (*map)(struct ics *ics, unsigned int virq); - void (*mask_unknown)(struct ics *ics, unsigned long vec); - long (*get_server)(struct ics *ics, unsigned long vec); - int (*host_match)(struct ics *ics, struct device_node *node); - char data[]; -}; - -/* Commons */ -extern unsigned int xics_default_server; -extern unsigned int xics_default_distrib_server; -extern unsigned int xics_interrupt_server_size; -extern struct irq_domain *xics_host; - -struct xics_cppr { - unsigned char stack[MAX_NUM_PRIORITIES]; - int index; -}; - -DECLARE_PER_CPU(struct xics_cppr, xics_cppr); - -static inline void xics_push_cppr(unsigned int vec) -{ - struct xics_cppr *os_cppr = &__get_cpu_var(xics_cppr); - - if (WARN_ON(os_cppr->index >= MAX_NUM_PRIORITIES - 1)) - return; - - if (vec == XICS_IPI) - os_cppr->stack[++os_cppr->index] = IPI_PRIORITY; - else - os_cppr->stack[++os_cppr->index] = DEFAULT_PRIORITY; -} - -static inline unsigned char xics_pop_cppr(void) -{ - struct xics_cppr *os_cppr = &__get_cpu_var(xics_cppr); - - if (WARN_ON(os_cppr->index < 1)) - return LOWEST_PRIORITY; - - return os_cppr->stack[--os_cppr->index]; -} - -static inline void xics_set_base_cppr(unsigned char cppr) -{ - struct xics_cppr *os_cppr = &__get_cpu_var(xics_cppr); - - /* we only really want to set the priority when there's - * just one cppr value on the stack - */ - WARN_ON(os_cppr->index != 0); - - os_cppr->stack[0] = cppr; -} - -static inline unsigned char xics_cppr_top(void) -{ - struct xics_cppr *os_cppr = &__get_cpu_var(xics_cppr); - - return os_cppr->stack[os_cppr->index]; -} - -DECLARE_PER_CPU_SHARED_ALIGNED(unsigned long, xics_ipi_message); - -extern void xics_init(void); -extern void xics_setup_cpu(void); -extern void xics_update_irq_servers(void); -extern void xics_set_cpu_giq(unsigned int gserver, unsigned int join); -extern void xics_mask_unknown_vec(unsigned int vec); -extern irqreturn_t xics_ipi_dispatch(int cpu); -extern int xics_smp_probe(void); -extern void xics_register_ics(struct ics *ics); -extern void xics_teardown_cpu(void); -extern void xics_kexec_teardown_cpu(int secondary); -extern void xics_migrate_irqs_away(void); -#ifdef CONFIG_SMP -extern int xics_get_irq_server(unsigned int virq, const struct cpumask *cpumask, - unsigned int strict_check); -#else -#define xics_get_irq_server(virq, cpumask, strict_check) (xics_default_server) -#endif - - -#endif /* _XICS_H */ |