arch/mips/include/asm/gic.h - maze/linux - Git at Google

 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
  * Copyright (C) 2000, 07 MIPS Technologies, Inc.
  *
  * GIC Register Definitions
  *
  */
 #ifndef _ASM_GICREGS_H
 #define _ASM_GICREGS_H

 #undef	GICISBYTELITTLEENDIAN

 /* Constants */
 #define GIC_POL_POS			1
 #define GIC_POL_NEG			0
 #define GIC_TRIG_EDGE			1
 #define GIC_TRIG_LEVEL			0

 #define GIC_NUM_INTRS			(24 + NR_CPUS * 2)

 #define MSK(n) ((1 << (n)) - 1)
 #define REG32(addr)		(*(volatile unsigned int *) (addr))
 #define REG(base, offs)		REG32((unsigned long)(base) + offs##_##OFS)
 #define REGP(base, phys)	REG32((unsigned long)(base) + (phys))

 /* Accessors */
 #define GIC_REG(segment, offset) \
 	REG32(_gic_base + segment##_##SECTION_OFS + offset##_##OFS)
 #define GIC_REG_ADDR(segment, offset) \
 	REG32(_gic_base + segment##_##SECTION_OFS + offset)

 #define GIC_ABS_REG(segment, offset) \
 	(_gic_base + segment##_##SECTION_OFS + offset##_##OFS)
 #define GIC_REG_ABS_ADDR(segment, 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 GICBIS(reg, bits)			\
 	({unsigned int data;			\
 		GICREAD(reg, data);		\
 		data |= bits;			\
 		GICWRITE(reg, data);		\
 	})

 #else
 #define GICREAD(reg, data)	((data) = (reg))
 #define GICWRITE(reg, data)	((reg) = (data))
 #define GICBIS(reg, bits)	((reg) |= (bits))
 #endif


 /* GIC Address Space */
 #define SHARED_SECTION_OFS		0x0000
 #define SHARED_SECTION_SIZE		0x8000
 #define VPE_LOCAL_SECTION_OFS		0x8000
 #define VPE_LOCAL_SECTION_SIZE		0x4000
 #define VPE_OTHER_SECTION_OFS		0xc000
 #define VPE_OTHER_SECTION_SIZE		0x4000
 #define USM_VISIBLE_SECTION_OFS		0x10000
 #define USM_VISIBLE_SECTION_SIZE	0x10000

 /* Register Map for Shared Section */

 #define GIC_SH_CONFIG_OFS		0x0000

 /* Shared Global Counter */
 #define GIC_SH_COUNTER_31_00_OFS	0x0010
 #define GIC_SH_COUNTER_63_32_OFS	0x0014
 #define GIC_SH_REVISIONID_OFS		0x0020

 /* Interrupt Polarity */
 #define GIC_SH_POL_31_0_OFS		0x0100
 #define GIC_SH_POL_63_32_OFS		0x0104
 #define GIC_SH_POL_95_64_OFS		0x0108
 #define GIC_SH_POL_127_96_OFS		0x010c
 #define GIC_SH_POL_159_128_OFS		0x0110
 #define GIC_SH_POL_191_160_OFS		0x0114
 #define GIC_SH_POL_223_192_OFS		0x0118
 #define GIC_SH_POL_255_224_OFS		0x011c

 /* Edge/Level Triggering */
 #define GIC_SH_TRIG_31_0_OFS		0x0180
 #define GIC_SH_TRIG_63_32_OFS		0x0184
 #define GIC_SH_TRIG_95_64_OFS		0x0188
 #define GIC_SH_TRIG_127_96_OFS		0x018c
 #define GIC_SH_TRIG_159_128_OFS		0x0190
 #define GIC_SH_TRIG_191_160_OFS		0x0194
 #define GIC_SH_TRIG_223_192_OFS		0x0198
 #define GIC_SH_TRIG_255_224_OFS		0x019c

 /* Dual Edge Triggering */
 #define GIC_SH_DUAL_31_0_OFS		0x0200
 #define GIC_SH_DUAL_63_32_OFS		0x0204
 #define GIC_SH_DUAL_95_64_OFS		0x0208
 #define GIC_SH_DUAL_127_96_OFS		0x020c
 #define GIC_SH_DUAL_159_128_OFS		0x0210
 #define GIC_SH_DUAL_191_160_OFS		0x0214
 #define GIC_SH_DUAL_223_192_OFS		0x0218
 #define GIC_SH_DUAL_255_224_OFS		0x021c

 /* Set/Clear corresponding bit in Edge Detect Register */
 #define GIC_SH_WEDGE_OFS		0x0280

 /* Reset Mask - Disables Interrupt */
 #define GIC_SH_RMASK_31_0_OFS		0x0300
 #define GIC_SH_RMASK_63_32_OFS		0x0304
 #define GIC_SH_RMASK_95_64_OFS		0x0308
 #define GIC_SH_RMASK_127_96_OFS		0x030c
 #define GIC_SH_RMASK_159_128_OFS	0x0310
 #define GIC_SH_RMASK_191_160_OFS	0x0314
 #define GIC_SH_RMASK_223_192_OFS	0x0318
 #define GIC_SH_RMASK_255_224_OFS	0x031c

 /* Set Mask (WO) - Enables Interrupt */
 #define GIC_SH_SMASK_31_0_OFS		0x0380
 #define GIC_SH_SMASK_63_32_OFS		0x0384
 #define GIC_SH_SMASK_95_64_OFS		0x0388
 #define GIC_SH_SMASK_127_96_OFS		0x038c
 #define GIC_SH_SMASK_159_128_OFS	0x0390
 #define GIC_SH_SMASK_191_160_OFS	0x0394
 #define GIC_SH_SMASK_223_192_OFS	0x0398
 #define GIC_SH_SMASK_255_224_OFS	0x039c

 /* Global Interrupt Mask Register (RO) - Bit Set == Interrupt enabled */
 #define GIC_SH_MASK_31_0_OFS		0x0400
 #define GIC_SH_MASK_63_32_OFS		0x0404
 #define GIC_SH_MASK_95_64_OFS		0x0408
 #define GIC_SH_MASK_127_96_OFS		0x040c
 #define GIC_SH_MASK_159_128_OFS		0x0410
 #define GIC_SH_MASK_191_160_OFS		0x0414
 #define GIC_SH_MASK_223_192_OFS		0x0418
 #define GIC_SH_MASK_255_224_OFS		0x041c

 /* Pending Global Interrupts (RO) */
 #define GIC_SH_PEND_31_0_OFS		0x0480
 #define GIC_SH_PEND_63_32_OFS		0x0484
 #define GIC_SH_PEND_95_64_OFS		0x0488
 #define GIC_SH_PEND_127_96_OFS		0x048c
 #define GIC_SH_PEND_159_128_OFS		0x0490
 #define GIC_SH_PEND_191_160_OFS		0x0494
 #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

 /* 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

 /* Maps Interrupt X to a VPE */
 #define GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe) \
 	(GIC_SH_INTR_MAP_TO_VPE_BASE_OFS + (32 * (intr)) + (((vpe) / 32) * 4))
 #define GIC_SH_MAP_TO_VPE_REG_BIT(vpe)	(1 << ((vpe) % 32))

 /* Convert an interrupt number to a byte offset/bit for multi-word registers */
 #define GIC_INTR_OFS(intr) (((intr) / 32)*4)
 #define GIC_INTR_BIT(intr) ((intr) % 32)

 /* Polarity : Reset Value is always 0 */
 #define GIC_SH_SET_POLARITY_OFS		0x0100
 #define GIC_SET_POLARITY(intr, pol) \
 	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_POLARITY_OFS + \
 		GIC_INTR_OFS(intr)), (pol) << GIC_INTR_BIT(intr))

 /* Triggering : Reset Value is always 0 */
 #define GIC_SH_SET_TRIGGER_OFS		0x0180
 #define GIC_SET_TRIGGER(intr, trig) \
 	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_TRIGGER_OFS + \
 		GIC_INTR_OFS(intr)), (trig) << GIC_INTR_BIT(intr))

 /* Mask manipulation */
 #define GIC_SH_SMASK_OFS		0x0380
 #define GIC_SET_INTR_MASK(intr) \
 	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_SMASK_OFS + \
 		GIC_INTR_OFS(intr)), 1 << GIC_INTR_BIT(intr))
 #define GIC_SH_RMASK_OFS		0x0300
 #define GIC_CLR_INTR_MASK(intr) \
 	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_RMASK_OFS + \
 		GIC_INTR_OFS(intr)), 1 << GIC_INTR_BIT(intr))

 /* Register Map for Local Section */
 #define GIC_VPE_CTL_OFS			0x0000
 #define GIC_VPE_PEND_OFS		0x0004
 #define GIC_VPE_MASK_OFS		0x0008
 #define GIC_VPE_RMASK_OFS		0x000c
 #define GIC_VPE_SMASK_OFS		0x0010
 #define GIC_VPE_WD_MAP_OFS		0x0040
 #define GIC_VPE_COMPARE_MAP_OFS		0x0044
 #define GIC_VPE_TIMER_MAP_OFS		0x0048
 #define GIC_VPE_PERFCTR_MAP_OFS		0x0050
 #define GIC_VPE_SWINT0_MAP_OFS		0x0054
 #define GIC_VPE_SWINT1_MAP_OFS		0x0058
 #define GIC_VPE_OTHER_ADDR_OFS		0x0080
 #define GIC_VPE_WD_CONFIG0_OFS		0x0090
 #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_EIC_SHADOW_SET_BASE	0x0100
 #define GIC_VPE_EIC_SS(intr) \
 	(GIC_VPE_EIC_SHADOW_SET_BASE + (4 * intr))

 #define GIC_VPE_EIC_VEC_BASE		0x0800
 #define GIC_VPE_EIC_VEC(intr) \
 	(GIC_VPE_EIC_VEC_BASE + (4 * intr))

 #define GIC_VPE_TENABLE_NMI_OFS		0x1000
 #define GIC_VPE_TENABLE_YQ_OFS		0x1004
 #define GIC_VPE_TENABLE_INT_31_0_OFS	0x1080
 #define GIC_VPE_TENABLE_INT_63_32_OFS	0x1084

 /* User Mode Visible Section Register Map */
 #define GIC_UMV_SH_COUNTER_31_00_OFS	0x0000
 #define GIC_UMV_SH_COUNTER_63_32_OFS	0x0004

 /* Masks */
 #define GIC_SH_CONFIG_COUNTSTOP_SHF	28
 #define GIC_SH_CONFIG_COUNTSTOP_MSK	(MSK(1) << GIC_SH_CONFIG_COUNTSTOP_SHF)

 #define GIC_SH_CONFIG_COUNTBITS_SHF	24
 #define GIC_SH_CONFIG_COUNTBITS_MSK	(MSK(4) << GIC_SH_CONFIG_COUNTBITS_SHF)

 #define GIC_SH_CONFIG_NUMINTRS_SHF	16
 #define GIC_SH_CONFIG_NUMINTRS_MSK	(MSK(8) << GIC_SH_CONFIG_NUMINTRS_SHF)

 #define GIC_SH_CONFIG_NUMVPES_SHF	0
 #define GIC_SH_CONFIG_NUMVPES_MSK	(MSK(8) << GIC_SH_CONFIG_NUMVPES_SHF)

 #define GIC_SH_WEDGE_SET(intr)		(intr | (0x1 << 31))
 #define GIC_SH_WEDGE_CLR(intr)		(intr & ~(0x1 << 31))

 #define GIC_MAP_TO_PIN_SHF		31
 #define GIC_MAP_TO_PIN_MSK		(MSK(1) << GIC_MAP_TO_PIN_SHF)
 #define GIC_MAP_TO_NMI_SHF		30
 #define GIC_MAP_TO_NMI_MSK		(MSK(1) << GIC_MAP_TO_NMI_SHF)
 #define GIC_MAP_TO_YQ_SHF		29
 #define GIC_MAP_TO_YQ_MSK		(MSK(1) << GIC_MAP_TO_YQ_SHF)
 #define GIC_MAP_SHF			0
 #define GIC_MAP_MSK			(MSK(6) << GIC_MAP_SHF)

 /* GIC_VPE_CTL Masks */
 #define GIC_VPE_CTL_PERFCNT_RTBL_SHF	2
 #define GIC_VPE_CTL_PERFCNT_RTBL_MSK	(MSK(1) << GIC_VPE_CTL_PERFCNT_RTBL_SHF)
 #define GIC_VPE_CTL_TIMER_RTBL_SHF	1
 #define GIC_VPE_CTL_TIMER_RTBL_MSK	(MSK(1) << GIC_VPE_CTL_TIMER_RTBL_SHF)
 #define GIC_VPE_CTL_EIC_MODE_SHF	0
 #define GIC_VPE_CTL_EIC_MODE_MSK	(MSK(1) << GIC_VPE_CTL_EIC_MODE_SHF)

 /* GIC_VPE_PEND Masks */
 #define GIC_VPE_PEND_WD_SHF		0
 #define GIC_VPE_PEND_WD_MSK		(MSK(1) << GIC_VPE_PEND_WD_SHF)
 #define GIC_VPE_PEND_CMP_SHF		1
 #define GIC_VPE_PEND_CMP_MSK		(MSK(1) << GIC_VPE_PEND_CMP_SHF)
 #define GIC_VPE_PEND_TIMER_SHF		2
 #define GIC_VPE_PEND_TIMER_MSK		(MSK(1) << GIC_VPE_PEND_TIMER_SHF)
 #define GIC_VPE_PEND_PERFCOUNT_SHF	3
 #define GIC_VPE_PEND_PERFCOUNT_MSK	(MSK(1) << GIC_VPE_PEND_PERFCOUNT_SHF)
 #define GIC_VPE_PEND_SWINT0_SHF		4
 #define GIC_VPE_PEND_SWINT0_MSK		(MSK(1) << GIC_VPE_PEND_SWINT0_SHF)
 #define GIC_VPE_PEND_SWINT1_SHF		5
 #define GIC_VPE_PEND_SWINT1_MSK		(MSK(1) << GIC_VPE_PEND_SWINT1_SHF)

 /* GIC_VPE_RMASK Masks */
 #define GIC_VPE_RMASK_WD_SHF		0
 #define GIC_VPE_RMASK_WD_MSK		(MSK(1) << GIC_VPE_RMASK_WD_SHF)
 #define GIC_VPE_RMASK_CMP_SHF		1
 #define GIC_VPE_RMASK_CMP_MSK		(MSK(1) << GIC_VPE_RMASK_CMP_SHF)
 #define GIC_VPE_RMASK_TIMER_SHF		2
 #define GIC_VPE_RMASK_TIMER_MSK		(MSK(1) << GIC_VPE_RMASK_TIMER_SHF)
 #define GIC_VPE_RMASK_PERFCNT_SHF	3
 #define GIC_VPE_RMASK_PERFCNT_MSK	(MSK(1) << GIC_VPE_RMASK_PERFCNT_SHF)
 #define GIC_VPE_RMASK_SWINT0_SHF	4
 #define GIC_VPE_RMASK_SWINT0_MSK	(MSK(1) << GIC_VPE_RMASK_SWINT0_SHF)
 #define GIC_VPE_RMASK_SWINT1_SHF	5
 #define GIC_VPE_RMASK_SWINT1_MSK	(MSK(1) << GIC_VPE_RMASK_SWINT1_SHF)

 /* GIC_VPE_SMASK Masks */
 #define GIC_VPE_SMASK_WD_SHF		0
 #define GIC_VPE_SMASK_WD_MSK		(MSK(1) << GIC_VPE_SMASK_WD_SHF)
 #define GIC_VPE_SMASK_CMP_SHF		1
 #define GIC_VPE_SMASK_CMP_MSK		(MSK(1) << GIC_VPE_SMASK_CMP_SHF)
 #define GIC_VPE_SMASK_TIMER_SHF		2
 #define GIC_VPE_SMASK_TIMER_MSK		(MSK(1) << GIC_VPE_SMASK_TIMER_SHF)
 #define GIC_VPE_SMASK_PERFCNT_SHF	3
 #define GIC_VPE_SMASK_PERFCNT_MSK	(MSK(1) << GIC_VPE_SMASK_PERFCNT_SHF)
 #define GIC_VPE_SMASK_SWINT0_SHF	4
 #define GIC_VPE_SMASK_SWINT0_MSK	(MSK(1) << GIC_VPE_SMASK_SWINT0_SHF)
 #define GIC_VPE_SMASK_SWINT1_SHF	5
 #define GIC_VPE_SMASK_SWINT1_MSK	(MSK(1) << GIC_VPE_SMASK_SWINT1_SHF)

 /*
  * Set the Mapping of Interrupt X to a VPE.
  */
 #define GIC_SH_MAP_TO_VPE_SMASK(intr, vpe) \
 	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe)), \
 		 GIC_SH_MAP_TO_VPE_REG_BIT(vpe))

 struct gic_pcpu_mask {
 	DECLARE_BITMAP(pcpu_mask, GIC_NUM_INTRS);
 };

 struct gic_pending_regs {
 	DECLARE_BITMAP(pending, GIC_NUM_INTRS);
 };

 struct gic_intrmask_regs {
 	DECLARE_BITMAP(intrmask, GIC_NUM_INTRS);
 };

 /*
  * Interrupt Meta-data specification. The ipiflag helps
  * in building ipi_map.
  */
 struct gic_intr_map {
 	unsigned int cpunum;	/* Directed to this CPU */
 #define GIC_UNUSED		0xdead			/* Dummy data */
 	unsigned int pin;	/* Directed to this Pin */
 	unsigned int polarity;	/* Polarity : +/-	*/
 	unsigned int trigtype;	/* Trigger  : Edge/Levl */
 	unsigned int flags;	/* Misc flags	*/
 #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 5 */

 /* 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)

 extern int gic_present;
 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 void gic_clocksource_init(unsigned int);
 extern unsigned int gic_get_int(void);
 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 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 */
	/*
	* This file is subject to the terms and conditions of the GNU General Public
	* License. See the file "COPYING" in the main directory of this archive
	* for more details.
	*
	* Copyright (C) 2000, 07 MIPS Technologies, Inc.
	*
	* GIC Register Definitions
	*
	*/
	#ifndef _ASM_GICREGS_H
	#define _ASM_GICREGS_H

	#undef GICISBYTELITTLEENDIAN

	/* Constants */
	#define GIC_POL_POS 1
	#define GIC_POL_NEG 0
	#define GIC_TRIG_EDGE 1
	#define GIC_TRIG_LEVEL 0

	#define GIC_NUM_INTRS (24 + NR_CPUS * 2)

	#define MSK(n) ((1 << (n)) - 1)
	#define REG32(addr) ((volatile unsigned int ) (addr))
	#define REG(base, offs) REG32((unsigned long)(base) + offs##_##OFS)
	#define REGP(base, phys) REG32((unsigned long)(base) + (phys))

	/* Accessors */
	#define GIC_REG(segment, offset) \
	REG32(_gic_base + segment##_##SECTION_OFS + offset##_##OFS)
	#define GIC_REG_ADDR(segment, offset) \
	REG32(_gic_base + segment##_##SECTION_OFS + offset)

	#define GIC_ABS_REG(segment, offset) \
	(_gic_base + segment##_##SECTION_OFS + offset##_##OFS)
	#define GIC_REG_ABS_ADDR(segment, 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 GICBIS(reg, bits) \
	({unsigned int data; \
	GICREAD(reg, data); \
	data \|= bits; \
	GICWRITE(reg, data); \
	})

	#else
	#define GICREAD(reg, data) ((data) = (reg))
	#define GICWRITE(reg, data) ((reg) = (data))
	#define GICBIS(reg, bits) ((reg) \|= (bits))
	#endif


	/* GIC Address Space */
	#define SHARED_SECTION_OFS 0x0000
	#define SHARED_SECTION_SIZE 0x8000
	#define VPE_LOCAL_SECTION_OFS 0x8000
	#define VPE_LOCAL_SECTION_SIZE 0x4000
	#define VPE_OTHER_SECTION_OFS 0xc000
	#define VPE_OTHER_SECTION_SIZE 0x4000
	#define USM_VISIBLE_SECTION_OFS 0x10000
	#define USM_VISIBLE_SECTION_SIZE 0x10000

	/* Register Map for Shared Section */

	#define GIC_SH_CONFIG_OFS 0x0000

	/* Shared Global Counter */
	#define GIC_SH_COUNTER_31_00_OFS 0x0010
	#define GIC_SH_COUNTER_63_32_OFS 0x0014
	#define GIC_SH_REVISIONID_OFS 0x0020

	/* Interrupt Polarity */
	#define GIC_SH_POL_31_0_OFS 0x0100
	#define GIC_SH_POL_63_32_OFS 0x0104
	#define GIC_SH_POL_95_64_OFS 0x0108
	#define GIC_SH_POL_127_96_OFS 0x010c
	#define GIC_SH_POL_159_128_OFS 0x0110
	#define GIC_SH_POL_191_160_OFS 0x0114
	#define GIC_SH_POL_223_192_OFS 0x0118
	#define GIC_SH_POL_255_224_OFS 0x011c

	/* Edge/Level Triggering */
	#define GIC_SH_TRIG_31_0_OFS 0x0180
	#define GIC_SH_TRIG_63_32_OFS 0x0184
	#define GIC_SH_TRIG_95_64_OFS 0x0188
	#define GIC_SH_TRIG_127_96_OFS 0x018c
	#define GIC_SH_TRIG_159_128_OFS 0x0190
	#define GIC_SH_TRIG_191_160_OFS 0x0194
	#define GIC_SH_TRIG_223_192_OFS 0x0198
	#define GIC_SH_TRIG_255_224_OFS 0x019c

	/* Dual Edge Triggering */
	#define GIC_SH_DUAL_31_0_OFS 0x0200
	#define GIC_SH_DUAL_63_32_OFS 0x0204
	#define GIC_SH_DUAL_95_64_OFS 0x0208
	#define GIC_SH_DUAL_127_96_OFS 0x020c
	#define GIC_SH_DUAL_159_128_OFS 0x0210
	#define GIC_SH_DUAL_191_160_OFS 0x0214
	#define GIC_SH_DUAL_223_192_OFS 0x0218
	#define GIC_SH_DUAL_255_224_OFS 0x021c

	/* Set/Clear corresponding bit in Edge Detect Register */
	#define GIC_SH_WEDGE_OFS 0x0280

	/* Reset Mask - Disables Interrupt */
	#define GIC_SH_RMASK_31_0_OFS 0x0300
	#define GIC_SH_RMASK_63_32_OFS 0x0304
	#define GIC_SH_RMASK_95_64_OFS 0x0308
	#define GIC_SH_RMASK_127_96_OFS 0x030c
	#define GIC_SH_RMASK_159_128_OFS 0x0310
	#define GIC_SH_RMASK_191_160_OFS 0x0314
	#define GIC_SH_RMASK_223_192_OFS 0x0318
	#define GIC_SH_RMASK_255_224_OFS 0x031c

	/* Set Mask (WO) - Enables Interrupt */
	#define GIC_SH_SMASK_31_0_OFS 0x0380
	#define GIC_SH_SMASK_63_32_OFS 0x0384
	#define GIC_SH_SMASK_95_64_OFS 0x0388
	#define GIC_SH_SMASK_127_96_OFS 0x038c
	#define GIC_SH_SMASK_159_128_OFS 0x0390
	#define GIC_SH_SMASK_191_160_OFS 0x0394
	#define GIC_SH_SMASK_223_192_OFS 0x0398
	#define GIC_SH_SMASK_255_224_OFS 0x039c

	/* Global Interrupt Mask Register (RO) - Bit Set == Interrupt enabled */
	#define GIC_SH_MASK_31_0_OFS 0x0400
	#define GIC_SH_MASK_63_32_OFS 0x0404
	#define GIC_SH_MASK_95_64_OFS 0x0408
	#define GIC_SH_MASK_127_96_OFS 0x040c
	#define GIC_SH_MASK_159_128_OFS 0x0410
	#define GIC_SH_MASK_191_160_OFS 0x0414
	#define GIC_SH_MASK_223_192_OFS 0x0418
	#define GIC_SH_MASK_255_224_OFS 0x041c

	/* Pending Global Interrupts (RO) */
	#define GIC_SH_PEND_31_0_OFS 0x0480
	#define GIC_SH_PEND_63_32_OFS 0x0484
	#define GIC_SH_PEND_95_64_OFS 0x0488
	#define GIC_SH_PEND_127_96_OFS 0x048c
	#define GIC_SH_PEND_159_128_OFS 0x0490
	#define GIC_SH_PEND_191_160_OFS 0x0494
	#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

	/* 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

	/* Maps Interrupt X to a VPE */
	#define GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe) \
	(GIC_SH_INTR_MAP_TO_VPE_BASE_OFS + (32 * (intr)) + (((vpe) / 32) * 4))
	#define GIC_SH_MAP_TO_VPE_REG_BIT(vpe) (1 << ((vpe) % 32))

	/* Convert an interrupt number to a byte offset/bit for multi-word registers */
	#define GIC_INTR_OFS(intr) (((intr) / 32)*4)
	#define GIC_INTR_BIT(intr) ((intr) % 32)

	/* Polarity : Reset Value is always 0 */
	#define GIC_SH_SET_POLARITY_OFS 0x0100
	#define GIC_SET_POLARITY(intr, pol) \
	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_POLARITY_OFS + \
	GIC_INTR_OFS(intr)), (pol) << GIC_INTR_BIT(intr))

	/* Triggering : Reset Value is always 0 */
	#define GIC_SH_SET_TRIGGER_OFS 0x0180
	#define GIC_SET_TRIGGER(intr, trig) \
	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_TRIGGER_OFS + \
	GIC_INTR_OFS(intr)), (trig) << GIC_INTR_BIT(intr))

	/* Mask manipulation */
	#define GIC_SH_SMASK_OFS 0x0380
	#define GIC_SET_INTR_MASK(intr) \
	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_SMASK_OFS + \
	GIC_INTR_OFS(intr)), 1 << GIC_INTR_BIT(intr))
	#define GIC_SH_RMASK_OFS 0x0300
	#define GIC_CLR_INTR_MASK(intr) \
	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_RMASK_OFS + \
	GIC_INTR_OFS(intr)), 1 << GIC_INTR_BIT(intr))

	/* Register Map for Local Section */
	#define GIC_VPE_CTL_OFS 0x0000
	#define GIC_VPE_PEND_OFS 0x0004
	#define GIC_VPE_MASK_OFS 0x0008
	#define GIC_VPE_RMASK_OFS 0x000c
	#define GIC_VPE_SMASK_OFS 0x0010
	#define GIC_VPE_WD_MAP_OFS 0x0040
	#define GIC_VPE_COMPARE_MAP_OFS 0x0044
	#define GIC_VPE_TIMER_MAP_OFS 0x0048
	#define GIC_VPE_PERFCTR_MAP_OFS 0x0050
	#define GIC_VPE_SWINT0_MAP_OFS 0x0054
	#define GIC_VPE_SWINT1_MAP_OFS 0x0058
	#define GIC_VPE_OTHER_ADDR_OFS 0x0080
	#define GIC_VPE_WD_CONFIG0_OFS 0x0090
	#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_EIC_SHADOW_SET_BASE 0x0100
	#define GIC_VPE_EIC_SS(intr) \
	(GIC_VPE_EIC_SHADOW_SET_BASE + (4 * intr))

	#define GIC_VPE_EIC_VEC_BASE 0x0800
	#define GIC_VPE_EIC_VEC(intr) \
	(GIC_VPE_EIC_VEC_BASE + (4 * intr))

	#define GIC_VPE_TENABLE_NMI_OFS 0x1000
	#define GIC_VPE_TENABLE_YQ_OFS 0x1004
	#define GIC_VPE_TENABLE_INT_31_0_OFS 0x1080
	#define GIC_VPE_TENABLE_INT_63_32_OFS 0x1084

	/* User Mode Visible Section Register Map */
	#define GIC_UMV_SH_COUNTER_31_00_OFS 0x0000
	#define GIC_UMV_SH_COUNTER_63_32_OFS 0x0004

	/* Masks */
	#define GIC_SH_CONFIG_COUNTSTOP_SHF 28
	#define GIC_SH_CONFIG_COUNTSTOP_MSK (MSK(1) << GIC_SH_CONFIG_COUNTSTOP_SHF)

	#define GIC_SH_CONFIG_COUNTBITS_SHF 24
	#define GIC_SH_CONFIG_COUNTBITS_MSK (MSK(4) << GIC_SH_CONFIG_COUNTBITS_SHF)

	#define GIC_SH_CONFIG_NUMINTRS_SHF 16
	#define GIC_SH_CONFIG_NUMINTRS_MSK (MSK(8) << GIC_SH_CONFIG_NUMINTRS_SHF)

	#define GIC_SH_CONFIG_NUMVPES_SHF 0
	#define GIC_SH_CONFIG_NUMVPES_MSK (MSK(8) << GIC_SH_CONFIG_NUMVPES_SHF)

	#define GIC_SH_WEDGE_SET(intr) (intr \| (0x1 << 31))
	#define GIC_SH_WEDGE_CLR(intr) (intr & ~(0x1 << 31))

	#define GIC_MAP_TO_PIN_SHF 31
	#define GIC_MAP_TO_PIN_MSK (MSK(1) << GIC_MAP_TO_PIN_SHF)
	#define GIC_MAP_TO_NMI_SHF 30
	#define GIC_MAP_TO_NMI_MSK (MSK(1) << GIC_MAP_TO_NMI_SHF)
	#define GIC_MAP_TO_YQ_SHF 29
	#define GIC_MAP_TO_YQ_MSK (MSK(1) << GIC_MAP_TO_YQ_SHF)
	#define GIC_MAP_SHF 0
	#define GIC_MAP_MSK (MSK(6) << GIC_MAP_SHF)

	/* GIC_VPE_CTL Masks */
	#define GIC_VPE_CTL_PERFCNT_RTBL_SHF 2
	#define GIC_VPE_CTL_PERFCNT_RTBL_MSK (MSK(1) << GIC_VPE_CTL_PERFCNT_RTBL_SHF)
	#define GIC_VPE_CTL_TIMER_RTBL_SHF 1
	#define GIC_VPE_CTL_TIMER_RTBL_MSK (MSK(1) << GIC_VPE_CTL_TIMER_RTBL_SHF)
	#define GIC_VPE_CTL_EIC_MODE_SHF 0
	#define GIC_VPE_CTL_EIC_MODE_MSK (MSK(1) << GIC_VPE_CTL_EIC_MODE_SHF)

	/* GIC_VPE_PEND Masks */
	#define GIC_VPE_PEND_WD_SHF 0
	#define GIC_VPE_PEND_WD_MSK (MSK(1) << GIC_VPE_PEND_WD_SHF)
	#define GIC_VPE_PEND_CMP_SHF 1
	#define GIC_VPE_PEND_CMP_MSK (MSK(1) << GIC_VPE_PEND_CMP_SHF)
	#define GIC_VPE_PEND_TIMER_SHF 2
	#define GIC_VPE_PEND_TIMER_MSK (MSK(1) << GIC_VPE_PEND_TIMER_SHF)
	#define GIC_VPE_PEND_PERFCOUNT_SHF 3
	#define GIC_VPE_PEND_PERFCOUNT_MSK (MSK(1) << GIC_VPE_PEND_PERFCOUNT_SHF)
	#define GIC_VPE_PEND_SWINT0_SHF 4
	#define GIC_VPE_PEND_SWINT0_MSK (MSK(1) << GIC_VPE_PEND_SWINT0_SHF)
	#define GIC_VPE_PEND_SWINT1_SHF 5
	#define GIC_VPE_PEND_SWINT1_MSK (MSK(1) << GIC_VPE_PEND_SWINT1_SHF)

	/* GIC_VPE_RMASK Masks */
	#define GIC_VPE_RMASK_WD_SHF 0
	#define GIC_VPE_RMASK_WD_MSK (MSK(1) << GIC_VPE_RMASK_WD_SHF)
	#define GIC_VPE_RMASK_CMP_SHF 1
	#define GIC_VPE_RMASK_CMP_MSK (MSK(1) << GIC_VPE_RMASK_CMP_SHF)
	#define GIC_VPE_RMASK_TIMER_SHF 2
	#define GIC_VPE_RMASK_TIMER_MSK (MSK(1) << GIC_VPE_RMASK_TIMER_SHF)
	#define GIC_VPE_RMASK_PERFCNT_SHF 3
	#define GIC_VPE_RMASK_PERFCNT_MSK (MSK(1) << GIC_VPE_RMASK_PERFCNT_SHF)
	#define GIC_VPE_RMASK_SWINT0_SHF 4
	#define GIC_VPE_RMASK_SWINT0_MSK (MSK(1) << GIC_VPE_RMASK_SWINT0_SHF)
	#define GIC_VPE_RMASK_SWINT1_SHF 5
	#define GIC_VPE_RMASK_SWINT1_MSK (MSK(1) << GIC_VPE_RMASK_SWINT1_SHF)

	/* GIC_VPE_SMASK Masks */
	#define GIC_VPE_SMASK_WD_SHF 0
	#define GIC_VPE_SMASK_WD_MSK (MSK(1) << GIC_VPE_SMASK_WD_SHF)
	#define GIC_VPE_SMASK_CMP_SHF 1
	#define GIC_VPE_SMASK_CMP_MSK (MSK(1) << GIC_VPE_SMASK_CMP_SHF)
	#define GIC_VPE_SMASK_TIMER_SHF 2
	#define GIC_VPE_SMASK_TIMER_MSK (MSK(1) << GIC_VPE_SMASK_TIMER_SHF)
	#define GIC_VPE_SMASK_PERFCNT_SHF 3
	#define GIC_VPE_SMASK_PERFCNT_MSK (MSK(1) << GIC_VPE_SMASK_PERFCNT_SHF)
	#define GIC_VPE_SMASK_SWINT0_SHF 4
	#define GIC_VPE_SMASK_SWINT0_MSK (MSK(1) << GIC_VPE_SMASK_SWINT0_SHF)
	#define GIC_VPE_SMASK_SWINT1_SHF 5
	#define GIC_VPE_SMASK_SWINT1_MSK (MSK(1) << GIC_VPE_SMASK_SWINT1_SHF)

	/*
	* Set the Mapping of Interrupt X to a VPE.
	*/
	#define GIC_SH_MAP_TO_VPE_SMASK(intr, vpe) \
	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe)), \
	GIC_SH_MAP_TO_VPE_REG_BIT(vpe))

	struct gic_pcpu_mask {
	DECLARE_BITMAP(pcpu_mask, GIC_NUM_INTRS);
	};

	struct gic_pending_regs {
	DECLARE_BITMAP(pending, GIC_NUM_INTRS);
	};

	struct gic_intrmask_regs {
	DECLARE_BITMAP(intrmask, GIC_NUM_INTRS);
	};

	/*
	* Interrupt Meta-data specification. The ipiflag helps
	* in building ipi_map.
	*/
	struct gic_intr_map {
	unsigned int cpunum; /* Directed to this CPU */
	#define GIC_UNUSED 0xdead /* Dummy data */
	unsigned int pin; /* Directed to this Pin */
	unsigned int polarity; /* Polarity : +/- */
	unsigned int trigtype; /* Trigger : Edge/Levl */
	unsigned int flags; /* Misc flags */
	#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 5 */

	/* 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)

	extern int gic_present;
	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 void gic_clocksource_init(unsigned int);
	extern unsigned int gic_get_int(void);
	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 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 */