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kernel/linux-rt-4.4.41/include/linux/irqchip/arm-gic.h 3.43 KB
5113f6f70   김현기   kernel add
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  /*
   *  include/linux/irqchip/arm-gic.h
   *
   *  Copyright (C) 2002 ARM Limited, All Rights Reserved.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   */
  #ifndef __LINUX_IRQCHIP_ARM_GIC_H
  #define __LINUX_IRQCHIP_ARM_GIC_H
  
  #define GIC_CPU_CTRL			0x00
  #define GIC_CPU_PRIMASK			0x04
  #define GIC_CPU_BINPOINT		0x08
  #define GIC_CPU_INTACK			0x0c
  #define GIC_CPU_EOI			0x10
  #define GIC_CPU_RUNNINGPRI		0x14
  #define GIC_CPU_HIGHPRI			0x18
  #define GIC_CPU_ALIAS_BINPOINT		0x1c
  #define GIC_CPU_ACTIVEPRIO		0xd0
  #define GIC_CPU_IDENT			0xfc
  #define GIC_CPU_DEACTIVATE		0x1000
  
  #define GICC_ENABLE			0x1
  #define GICC_INT_PRI_THRESHOLD		0xf0
  
  #define GIC_CPU_CTRL_EOImodeNS		(1 << 9)
  
  #define GICC_IAR_INT_ID_MASK		0x3ff
  #define GICC_INT_SPURIOUS		1023
  #define GICC_DIS_BYPASS_MASK		0x1e0
  
  #define GIC_DIST_CTRL			0x000
  #define GIC_DIST_CTR			0x004
  #define GIC_DIST_IGROUP			0x080
  #define GIC_DIST_ENABLE_SET		0x100
  #define GIC_DIST_ENABLE_CLEAR		0x180
  #define GIC_DIST_PENDING_SET		0x200
  #define GIC_DIST_PENDING_CLEAR		0x280
  #define GIC_DIST_ACTIVE_SET		0x300
  #define GIC_DIST_ACTIVE_CLEAR		0x380
  #define GIC_DIST_PRI			0x400
  #define GIC_DIST_TARGET			0x800
  #define GIC_DIST_CONFIG			0xc00
  #define GIC_DIST_SOFTINT		0xf00
  #define GIC_DIST_SGI_PENDING_CLEAR	0xf10
  #define GIC_DIST_SGI_PENDING_SET	0xf20
  
  #define GICD_ENABLE			0x1
  #define GICD_DISABLE			0x0
  #define GICD_INT_ACTLOW_LVLTRIG		0x0
  #define GICD_INT_EN_CLR_X32		0xffffffff
  #define GICD_INT_EN_SET_SGI		0x0000ffff
  #define GICD_INT_EN_CLR_PPI		0xffff0000
  #define GICD_INT_DEF_PRI		0xa0
  #define GICD_INT_DEF_PRI_X4		((GICD_INT_DEF_PRI << 24) |\
  					(GICD_INT_DEF_PRI << 16) |\
  					(GICD_INT_DEF_PRI << 8) |\
  					GICD_INT_DEF_PRI)
  
  #define GICH_HCR			0x0
  #define GICH_VTR			0x4
  #define GICH_VMCR			0x8
  #define GICH_MISR			0x10
  #define GICH_EISR0 			0x20
  #define GICH_EISR1 			0x24
  #define GICH_ELRSR0 			0x30
  #define GICH_ELRSR1 			0x34
  #define GICH_APR			0xf0
  #define GICH_LR0			0x100
  
  #define GICH_HCR_EN			(1 << 0)
  #define GICH_HCR_UIE			(1 << 1)
  
  #define GICH_LR_VIRTUALID		(0x3ff << 0)
  #define GICH_LR_PHYSID_CPUID_SHIFT	(10)
  #define GICH_LR_PHYSID_CPUID		(0x3ff << GICH_LR_PHYSID_CPUID_SHIFT)
  #define GICH_LR_STATE			(3 << 28)
  #define GICH_LR_PENDING_BIT		(1 << 28)
  #define GICH_LR_ACTIVE_BIT		(1 << 29)
  #define GICH_LR_EOI			(1 << 19)
  #define GICH_LR_HW			(1 << 31)
  
  #define GICH_VMCR_CTRL_SHIFT		0
  #define GICH_VMCR_CTRL_MASK		(0x21f << GICH_VMCR_CTRL_SHIFT)
  #define GICH_VMCR_PRIMASK_SHIFT		27
  #define GICH_VMCR_PRIMASK_MASK		(0x1f << GICH_VMCR_PRIMASK_SHIFT)
  #define GICH_VMCR_BINPOINT_SHIFT	21
  #define GICH_VMCR_BINPOINT_MASK		(0x7 << GICH_VMCR_BINPOINT_SHIFT)
  #define GICH_VMCR_ALIAS_BINPOINT_SHIFT	18
  #define GICH_VMCR_ALIAS_BINPOINT_MASK	(0x7 << GICH_VMCR_ALIAS_BINPOINT_SHIFT)
  
  #define GICH_MISR_EOI			(1 << 0)
  #define GICH_MISR_U			(1 << 1)
  
  #ifndef __ASSEMBLY__
  
  #include <linux/irqdomain.h>
  
  struct device_node;
  
  void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
  int gic_cpu_if_down(unsigned int gic_nr);
  
  void gic_init(unsigned int nr, int start,
  	      void __iomem *dist , void __iomem *cpu);
  
  int gicv2m_of_init(struct device_node *node, struct irq_domain *parent);
  
  void gic_send_sgi(unsigned int cpu_id, unsigned int irq);
  int gic_get_cpu_id(unsigned int cpu);
  void gic_migrate_target(unsigned int new_cpu_id);
  unsigned long gic_get_sgir_physaddr(void);
  
  #endif /* __ASSEMBLY */
  #endif