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kernel/linux-rt-4.4.41/arch/ia64/include/asm/sn/intr.h 2.24 KB
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  /*
   * 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) 1992 - 1997, 2000-2006 Silicon Graphics, Inc. All rights reserved.
   */
  
  #ifndef _ASM_IA64_SN_INTR_H
  #define _ASM_IA64_SN_INTR_H
  
  #include <linux/rcupdate.h>
  #include <asm/sn/types.h>
  
  #define SGI_UART_VECTOR		0xe9
  
  /* Reserved IRQs : Note, not to exceed IA64_SN2_FIRST_DEVICE_VECTOR */
  #define SGI_XPC_ACTIVATE	0x30
  #define SGI_II_ERROR		0x31
  #define SGI_XBOW_ERROR		0x32
  #define SGI_PCIASIC_ERROR	0x33
  #define SGI_ACPI_SCI_INT	0x34
  #define SGI_TIOCA_ERROR		0x35
  #define SGI_TIO_ERROR		0x36
  #define SGI_TIOCX_ERROR		0x37
  #define SGI_MMTIMER_VECTOR	0x38
  #define SGI_XPC_NOTIFY		0xe7
  
  #define IA64_SN2_FIRST_DEVICE_VECTOR	0x3c
  #define IA64_SN2_LAST_DEVICE_VECTOR	0xe6
  
  #define SN2_IRQ_RESERVED	0x1
  #define SN2_IRQ_CONNECTED	0x2
  #define SN2_IRQ_SHARED		0x4
  
  // The SN PROM irq struct
  struct sn_irq_info {
  	struct sn_irq_info *irq_next;	/* deprecated DO NOT USE     */
  	short		irq_nasid;	/* Nasid IRQ is assigned to  */
  	int		irq_slice;	/* slice IRQ is assigned to  */
  	int		irq_cpuid;	/* kernel logical cpuid	     */
  	int		irq_irq;	/* the IRQ number */
  	int		irq_int_bit;	/* Bridge interrupt pin */
  					/* <0 means MSI */
  	u64	irq_xtalkaddr;	/* xtalkaddr IRQ is sent to  */
  	int		irq_bridge_type;/* pciio asic type (pciio.h) */
  	void	       *irq_bridge;	/* bridge generating irq     */
  	void	       *irq_pciioinfo;	/* associated pciio_info_t   */
  	int		irq_last_intr;	/* For Shub lb lost intr WAR */
  	int		irq_cookie;	/* unique cookie 	     */
  	int		irq_flags;	/* flags */
  	int		irq_share_cnt;	/* num devices sharing IRQ   */
  	struct list_head	list;	/* list of sn_irq_info structs */
  	struct rcu_head		rcu;	/* rcu callback list */
  };
  
  extern void sn_send_IPI_phys(int, long, int, int);
  extern u64 sn_intr_alloc(nasid_t, int,
  			      struct sn_irq_info *,
  			      int, nasid_t, int);
  extern void sn_intr_free(nasid_t, int, struct sn_irq_info *);
  extern struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *, nasid_t, int);
  extern void sn_set_err_irq_affinity(unsigned int);
  extern struct list_head **sn_irq_lh;
  
  #define CPU_VECTOR_TO_IRQ(cpuid,vector) (vector)
  
  #endif /* _ASM_IA64_SN_INTR_H */