forked from Minki/linux
5f7f5b0c99
Work-around to temporarily support older PROMs with new flush device code. This code allows systems running older PROMs to continue to run on the new kernel base until a new official PROM is released. Signed-off-by: Prarit Bhargava <prarit@sgi.com> Acked-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/*
|
|
* 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 */
|