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kernel/linux-rt-4.4.41/arch/ia64/sn/include/xtalk/hubdev.h 2.63 KB
5113f6f70   김현기   kernel add
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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, 2000-2005 Silicon Graphics, Inc. All rights reserved.
   */
  #ifndef _ASM_IA64_SN_XTALK_HUBDEV_H
  #define _ASM_IA64_SN_XTALK_HUBDEV_H
  
  #include "xtalk/xwidgetdev.h"
  
  #define HUB_WIDGET_ID_MAX 0xf
  #define DEV_PER_WIDGET (2*2*8)
  #define IIO_ITTE_WIDGET_BITS    4       /* size of widget field */
  #define IIO_ITTE_WIDGET_MASK    ((1<<IIO_ITTE_WIDGET_BITS)-1)
  #define IIO_ITTE_WIDGET_SHIFT   8
  
  #define IIO_ITTE_WIDGET(itte)	\
  	(((itte) >> IIO_ITTE_WIDGET_SHIFT) & IIO_ITTE_WIDGET_MASK)
  
  /*
   * Use the top big window as a surrogate for the first small window
   */
  #define SWIN0_BIGWIN            HUB_NUM_BIG_WINDOW
  #define IIO_NUM_ITTES   7
  #define HUB_NUM_BIG_WINDOW      (IIO_NUM_ITTES - 1)
  
  /* This struct is shared between the PROM and the kernel.
   * Changes to this struct will require corresponding changes to the kernel.
   */
  struct sn_flush_device_common {
  	int sfdl_bus;
  	int sfdl_slot;
  	int sfdl_pin;
  	struct common_bar_list {
  		unsigned long start;
  		unsigned long end;
  	} sfdl_bar_list[6];
  	unsigned long sfdl_force_int_addr;
  	unsigned long sfdl_flush_value;
  	volatile unsigned long *sfdl_flush_addr;
  	u32 sfdl_persistent_busnum;
  	u32 sfdl_persistent_segment;
  	struct pcibus_info *sfdl_pcibus_info;
  };
  
  /* This struct is kernel only and is not used by the PROM */
  struct sn_flush_device_kernel {
  	spinlock_t sfdl_flush_lock;
  	struct sn_flush_device_common *common;
  };
  
  /* 01/16/06 This struct is the old PROM/kernel struct and needs to be included
   * for older official PROMs to function on the new kernel base.  This struct
   * will be removed when the next official PROM release occurs. */
  
  struct sn_flush_device_war {
  	struct sn_flush_device_common common;
  	u32 filler; /* older PROMs expect the default size of a spinlock_t */
  };
  
  /*
   * **widget_p - Used as an array[wid_num][device] of sn_flush_device_kernel.
   */
  struct sn_flush_nasid_entry  {
  	struct sn_flush_device_kernel **widget_p; // Used as an array of wid_num
  	u64 iio_itte[8];
  };
  
  struct hubdev_info {
  	geoid_t				hdi_geoid;
  	short				hdi_nasid;
  	short				hdi_peer_nasid;   /* Dual Porting Peer */
  
  	struct sn_flush_nasid_entry	hdi_flush_nasid_list;
  	struct xwidget_info		hdi_xwidget_info[HUB_WIDGET_ID_MAX + 1];
  
  
  	void				*hdi_nodepda;
  	void				*hdi_node_vertex;
  	u32				max_segment_number;
  	u32				max_pcibus_number;
  };
  
  extern void hubdev_init_node(nodepda_t *, cnodeid_t);
  extern void hub_error_init(struct hubdev_info *);
  extern void ice_error_init(struct hubdev_info *);
  
  
  #endif /* _ASM_IA64_SN_XTALK_HUBDEV_H */