diff options
Diffstat (limited to 'arch/mips/include/asm/gic.h')
| -rw-r--r-- | arch/mips/include/asm/gic.h | 91 |
1 files changed, 72 insertions, 19 deletions
diff --git a/arch/mips/include/asm/gic.h b/arch/mips/include/asm/gic.h index 86548da650e..10f6a99f92c 100644 --- a/arch/mips/include/asm/gic.h +++ b/arch/mips/include/asm/gic.h @@ -11,6 +11,9 @@ #ifndef _ASM_GICREGS_H #define _ASM_GICREGS_H +#include <linux/bitmap.h> +#include <linux/threads.h> + #undef GICISBYTELITTLEENDIAN /* Constants */ @@ -33,13 +36,13 @@ REG32(_gic_base + segment##_##SECTION_OFS + offset) #define GIC_ABS_REG(segment, offset) \ - (_gic_base + segment##_##SECTION_OFS + offset##_##OFS) + (_gic_base + segment##_##SECTION_OFS + offset##_##OFS) #define GIC_REG_ABS_ADDR(segment, offset) \ - (_gic_base + segment##_##SECTION_OFS + offset) + (_gic_base + segment##_##SECTION_OFS + offset) #ifdef GICISBYTELITTLEENDIAN -#define GICREAD(reg, data) (data) = (reg), (data) = le32_to_cpu(data) -#define GICWRITE(reg, data) (reg) = cpu_to_le32(data) +#define GICREAD(reg, data) ((data) = (reg), (data) = le32_to_cpu(data)) +#define GICWRITE(reg, data) ((reg) = cpu_to_le32(data)) #define GICBIS(reg, bits) \ ({unsigned int data; \ GICREAD(reg, data); \ @@ -48,9 +51,9 @@ }) #else -#define GICREAD(reg, data) (data) = (reg) -#define GICWRITE(reg, data) (reg) = (data) -#define GICBIS(reg, bits) (reg) |= (bits) +#define GICREAD(reg, data) ((data) = (reg)) +#define GICWRITE(reg, data) ((reg) = (data)) +#define GICBIS(reg, bits) ((reg) |= (bits)) #endif @@ -66,7 +69,7 @@ /* Register Map for Shared Section */ -#define GIC_SH_CONFIG_OFS 0x0000 +#define GIC_SH_CONFIG_OFS 0x0000 /* Shared Global Counter */ #define GIC_SH_COUNTER_31_00_OFS 0x0010 @@ -146,13 +149,13 @@ #define GIC_SH_PEND_223_192_OFS 0x0498 #define GIC_SH_PEND_255_224_OFS 0x049c -#define GIC_SH_INTR_MAP_TO_PIN_BASE_OFS 0x0500 +#define GIC_SH_INTR_MAP_TO_PIN_BASE_OFS 0x0500 /* Maps Interrupt X to a Pin */ #define GIC_SH_MAP_TO_PIN(intr) \ (GIC_SH_INTR_MAP_TO_PIN_BASE_OFS + (4 * intr)) -#define GIC_SH_INTR_MAP_TO_VPE_BASE_OFS 0x2000 +#define GIC_SH_INTR_MAP_TO_VPE_BASE_OFS 0x2000 /* Maps Interrupt X to a VPE */ #define GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe) \ @@ -202,11 +205,11 @@ #define GIC_VPE_WD_COUNT0_OFS 0x0094 #define GIC_VPE_WD_INITIAL0_OFS 0x0098 #define GIC_VPE_COMPARE_LO_OFS 0x00a0 -#define GIC_VPE_COMPARE_HI 0x00a4 +#define GIC_VPE_COMPARE_HI_OFS 0x00a4 #define GIC_VPE_EIC_SHADOW_SET_BASE 0x0100 #define GIC_VPE_EIC_SS(intr) \ - (GIC_EIC_SHADOW_SET_BASE + (4 * intr)) + (GIC_VPE_EIC_SHADOW_SET_BASE + (4 * intr)) #define GIC_VPE_EIC_VEC_BASE 0x0800 #define GIC_VPE_EIC_VEC(intr) \ @@ -304,15 +307,15 @@ GIC_SH_MAP_TO_VPE_REG_BIT(vpe)) struct gic_pcpu_mask { - DECLARE_BITMAP(pcpu_mask, GIC_NUM_INTRS); + DECLARE_BITMAP(pcpu_mask, GIC_NUM_INTRS); }; struct gic_pending_regs { - DECLARE_BITMAP(pending, GIC_NUM_INTRS); + DECLARE_BITMAP(pending, GIC_NUM_INTRS); }; struct gic_intrmask_regs { - DECLARE_BITMAP(intrmask, GIC_NUM_INTRS); + DECLARE_BITMAP(intrmask, GIC_NUM_INTRS); }; /* @@ -326,17 +329,67 @@ struct gic_intr_map { unsigned int polarity; /* Polarity : +/- */ unsigned int trigtype; /* Trigger : Edge/Levl */ unsigned int flags; /* Misc flags */ -#define GIC_FLAG_IPI 0x01 +#define GIC_FLAG_IPI 0x01 #define GIC_FLAG_TRANSPARENT 0x02 }; +/* + * This is only used in EIC mode. This helps to figure out which + * shared interrupts we need to process when we get a vector interrupt. + */ +#define GIC_MAX_SHARED_INTR 0x5 +struct gic_shared_intr_map { + unsigned int num_shared_intr; + unsigned int intr_list[GIC_MAX_SHARED_INTR]; + unsigned int local_intr_mask; +}; + +/* GIC nomenclature for Core Interrupt Pins. */ +#define GIC_CPU_INT0 0 /* Core Interrupt 2 */ +#define GIC_CPU_INT1 1 /* . */ +#define GIC_CPU_INT2 2 /* . */ +#define GIC_CPU_INT3 3 /* . */ +#define GIC_CPU_INT4 4 /* . */ +#define GIC_CPU_INT5 5 /* Core Interrupt 7 */ + +/* Local GIC interrupts. */ +#define GIC_INT_TMR (GIC_CPU_INT5) +#define GIC_INT_PERFCTR (GIC_CPU_INT5) + +/* Add 2 to convert non-EIC hardware interrupt to EIC vector number. */ +#define GIC_CPU_TO_VEC_OFFSET (2) + +/* Mapped interrupt to pin X, then GIC will generate the vector (X+1). */ +#define GIC_PIN_TO_VEC_OFFSET (1) + +#include <linux/clocksource.h> +#include <linux/irq.h> + +extern unsigned int gic_present; +extern unsigned int gic_frequency; +extern unsigned long _gic_base; +extern unsigned int gic_irq_base; +extern unsigned int gic_irq_flags[]; +extern struct gic_shared_intr_map gic_shared_intr_map[]; + extern void gic_init(unsigned long gic_base_addr, unsigned long gic_addrspace_size, struct gic_intr_map *intrmap, unsigned int intrmap_size, unsigned int irqbase); - -extern unsigned int gic_get_int(void); +extern void gic_clocksource_init(unsigned int); +extern unsigned int gic_compare_int (void); +extern cycle_t gic_read_count(void); +extern cycle_t gic_read_compare(void); +extern void gic_write_compare(cycle_t cnt); +extern void gic_write_cpu_compare(cycle_t cnt, int cpu); extern void gic_send_ipi(unsigned int intr); extern unsigned int plat_ipi_call_int_xlate(unsigned int); extern unsigned int plat_ipi_resched_int_xlate(unsigned int); - +extern void gic_bind_eic_interrupt(int irq, int set); +extern unsigned int gic_get_timer_pending(void); +extern unsigned int gic_get_int(void); +extern void gic_enable_interrupt(int irq_vec); +extern void gic_disable_interrupt(int irq_vec); +extern void gic_irq_ack(struct irq_data *d); +extern void gic_finish_irq(struct irq_data *d); +extern void gic_platform_init(int irqs, struct irq_chip *irq_controller); #endif /* _ASM_GICREGS_H */ |