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[IA64-SGI] Add new MMR definitions/Modify BTE initialiation&copy. 

patch 1:
	Add new MMR definitions.
	Modify BTE initialiation.
	Modify BTE copy.

Signed-off-by: Russ Anderson <rja@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Russ Anderson 2005-04-25 13:19:11 -07:00 committed by Tony Luck
parent 4628d7cada
commit 95ff439a51
5 changed files with 80 additions and 20 deletions
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20
arch/ia64/sn/kernel/bte.c
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@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
* Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*/
#include <linux/config.h>
@ -170,10 +170,6 @@ bte_result_t bte_copy(u64 src, u64 dest, u64 len, u64 mode, void *notification)
/* Initialize the notification to a known value. */
*bte->most_rcnt_na = BTE_WORD_BUSY;
/* Set the status reg busy bit and transfer length */
BTE_PRINTKV(("IBLS = 0x%lx\n", IBLS_BUSY | transfer_size));
BTE_LNSTAT_STORE(bte, IBLS_BUSY | transfer_size);
/* Set the source and destination registers */
BTE_PRINTKV(("IBSA = 0x%lx)\n", (TO_PHYS(src))));
BTE_SRC_STORE(bte, TO_PHYS(src));
@ -188,7 +184,7 @@ bte_result_t bte_copy(u64 src, u64 dest, u64 len, u64 mode, void *notification)
/* Initiate the transfer */
BTE_PRINTK(("IBCT = 0x%lx)\n", BTE_VALID_MODE(mode)));
BTE_CTRL_STORE(bte, BTE_VALID_MODE(mode));
BTE_START_TRANSFER(bte, transfer_size, BTE_VALID_MODE(mode));
itc_end = ia64_get_itc() + (40000000 * local_cpu_data->cyc_per_usec);
@ -429,10 +425,16 @@ void bte_init_node(nodepda_t * mynodepda, cnodeid_t cnode)
mynodepda->bte_recovery_timer.data = (unsigned long)mynodepda;
for (i = 0; i < BTES_PER_NODE; i++) {
u64 *base_addr;
/* Which link status register should we use? */
unsigned long link_status = (i == 0 ? IIO_IBLS0 : IIO_IBLS1);
mynodepda->bte_if[i].bte_base_addr = (u64 *)
REMOTE_HUB_ADDR(cnodeid_to_nasid(cnode), link_status);
base_addr = (u64 *)
REMOTE_HUB_ADDR(cnodeid_to_nasid(cnode), BTE_BASE_ADDR(i));
mynodepda->bte_if[i].bte_base_addr = base_addr;
mynodepda->bte_if[i].bte_source_addr = BTE_SOURCE_ADDR(base_addr);
mynodepda->bte_if[i].bte_destination_addr = BTE_DEST_ADDR(base_addr);
mynodepda->bte_if[i].bte_control_addr = BTE_CTRL_ADDR(base_addr);
mynodepda->bte_if[i].bte_notify_addr = BTE_NOTIF_ADDR(base_addr);
/*
* Initialize the notification and spinlock

53
include/asm-ia64/sn/bte.h
View File

@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
* Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*/
@ -13,8 +13,12 @@
#include <linux/timer.h>
#include <linux/spinlock.h>
#include <linux/cache.h>
#include <asm/sn/pda.h>
#include <asm/sn/types.h>
#include <asm/sn/shub_mmr.h>
#define IBCT_NOTIFY (0x1UL << 4)
#define IBCT_ZFIL_MODE (0x1UL << 0)
/* #define BTE_DEBUG */
/* #define BTE_DEBUG_VERBOSE */
@ -39,8 +43,36 @@
/* Define hardware */
#define BTES_PER_NODE 2
#define BTES_PER_NODE (is_shub2() ? 4 : 2)
#define MAX_BTES_PER_NODE 4
#define BTE2OFF_CTRL (0)
#define BTE2OFF_SRC (SH2_BT_ENG_SRC_ADDR_0 - SH2_BT_ENG_CSR_0)
#define BTE2OFF_DEST (SH2_BT_ENG_DEST_ADDR_0 - SH2_BT_ENG_CSR_0)
#define BTE2OFF_NOTIFY (SH2_BT_ENG_NOTIF_ADDR_0 - SH2_BT_ENG_CSR_0)
#define BTE_BASE_ADDR(interface) \
(is_shub2() ? (interface == 0) ? SH2_BT_ENG_CSR_0 : \
(interface == 1) ? SH2_BT_ENG_CSR_1 : \
(interface == 2) ? SH2_BT_ENG_CSR_2 : \
SH2_BT_ENG_CSR_3 \
: (interface == 0) ? IIO_IBLS0 : IIO_IBLS1)
#define BTE_SOURCE_ADDR(base) \
(is_shub2() ? base + (BTE2OFF_SRC/8) \
: base + (BTEOFF_SRC/8))
#define BTE_DEST_ADDR(base) \
(is_shub2() ? base + (BTE2OFF_DEST/8) \
: base + (BTEOFF_DEST/8))
#define BTE_CTRL_ADDR(base) \
(is_shub2() ? base + (BTE2OFF_CTRL/8) \
: base + (BTEOFF_CTRL/8))
#define BTE_NOTIF_ADDR(base) \
(is_shub2() ? base + (BTE2OFF_NOTIFY/8) \
: base + (BTEOFF_NOTIFY/8))
/* Define hardware modes */
#define BTE_NOTIFY (IBCT_NOTIFY)
@ -68,14 +100,18 @@
#define BTE_LNSTAT_STORE(_bte, _x) \
HUB_S(_bte->bte_base_addr, (_x))
#define BTE_SRC_STORE(_bte, _x) \
HUB_S(_bte->bte_base_addr + (BTEOFF_SRC/8), (_x))
HUB_S(_bte->bte_source_addr, (_x))
#define BTE_DEST_STORE(_bte, _x) \
HUB_S(_bte->bte_base_addr + (BTEOFF_DEST/8), (_x))
HUB_S(_bte->bte_destination_addr, (_x))
#define BTE_CTRL_STORE(_bte, _x) \
HUB_S(_bte->bte_base_addr + (BTEOFF_CTRL/8), (_x))
HUB_S(_bte->bte_control_addr, (_x))
#define BTE_NOTIF_STORE(_bte, _x) \
HUB_S(_bte->bte_base_addr + (BTEOFF_NOTIFY/8), (_x))
HUB_S(_bte->bte_notify_addr, (_x))
#define BTE_START_TRANSFER(_bte, _len, _mode) \
is_shub2() ? BTE_CTRL_STORE(_bte, IBLS_BUSY | (_mode << 24) | _len) \
: BTE_LNSTAT_STORE(_bte, _len); \
BTE_CTRL_STORE(_bte, _mode)
/* Possible results from bte_copy and bte_unaligned_copy */
/* The following error codes map into the BTE hardware codes
@ -110,6 +146,10 @@ typedef enum {
struct bteinfo_s {
volatile u64 notify ____cacheline_aligned;
u64 *bte_base_addr ____cacheline_aligned;
u64 *bte_source_addr;
u64 *bte_destination_addr;
u64 *bte_control_addr;
u64 *bte_notify_addr;
spinlock_t spinlock;
cnodeid_t bte_cnode; /* cnode */
int bte_error_count; /* Number of errors encountered */
@ -117,6 +157,7 @@ struct bteinfo_s {
int cleanup_active; /* Interface is locked for cleanup */
volatile bte_result_t bh_error; /* error while processing */
volatile u64 *most_rcnt_na;
struct bteinfo_s *btes_to_try[MAX_BTES_PER_NODE];
};

4
include/asm-ia64/sn/nodepda.h
View File

@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1992 - 1997, 2000-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_NODEPDA_H
#define _ASM_IA64_SN_NODEPDA_H
@ -43,7 +43,7 @@ struct nodepda_s {
/*
* The BTEs on this node are shared by the local cpus
*/
struct bteinfo_s bte_if[BTES_PER_NODE]; /* Virtual Interface */
struct bteinfo_s bte_if[MAX_BTES_PER_NODE]; /* Virtual Interface */
struct timer_list bte_recovery_timer;
spinlock_t bte_recovery_lock;

3
include/asm-ia64/sn/pda.h
View File

@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1992 - 1997, 2000-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_PDA_H
#define _ASM_IA64_SN_PDA_H
@ -11,7 +11,6 @@
#include <linux/cache.h>
#include <asm/percpu.h>
#include <asm/system.h>
#include <asm/sn/bte.h>
/*

20
include/asm-ia64/sn/shub_mmr.h
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@ -4,7 +4,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2001-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (c) 2001-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_SHUB_MMR_H
@ -455,4 +455,22 @@
#define SH_INT_CMPC shubmmr(SH, INT_CMPC)
#define SH_INT_CMPD shubmmr(SH, INT_CMPD)
/* ========================================================================== */
/* Register "SH2_BT_ENG_CSR_0" */
/* Engine 0 Control and Status Register */
/* ========================================================================== */
#define SH2_BT_ENG_CSR_0 0x0000000030040000
#define SH2_BT_ENG_SRC_ADDR_0 0x0000000030040080
#define SH2_BT_ENG_DEST_ADDR_0 0x0000000030040100
#define SH2_BT_ENG_NOTIF_ADDR_0 0x0000000030040180
/* ========================================================================== */
/* BTE interfaces 1-3 */
/* ========================================================================== */
#define SH2_BT_ENG_CSR_1 0x0000000030050000
#define SH2_BT_ENG_CSR_2 0x0000000030060000
#define SH2_BT_ENG_CSR_3 0x0000000030070000
#endif /* _ASM_IA64_SN_SHUB_MMR_H */