[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>

diff --git a/arch/ia64/sn/kernel/bte.c b/arch/ia64/sn/kernel/bte.c
index ce0bc40..647deae 100644 (file)
--- a/arch/ia64/sn/kernel/bte.c
+++ b/arch/ia64/sn/kernel/bte.c
@@ -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 @@ retry_bteop:
        /* 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 @@ retry_bteop:
 
        /* 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

diff --git a/include/asm-ia64/sn/bte.h b/include/asm-ia64/sn/bte.h
index 0ec27f9..f50da3d 100644 (file)
--- a/include/asm-ia64/sn/bte.h
+++ b/include/asm-ia64/sn/bte.h
@@ -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];
 };
 
 

diff --git a/include/asm-ia64/sn/nodepda.h b/include/asm-ia64/sn/nodepda.h
index 2fbde33..13cc100 100644 (file)
--- a/include/asm-ia64/sn/nodepda.h
+++ b/include/asm-ia64/sn/nodepda.h
@@ -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;
 

diff --git a/include/asm-ia64/sn/pda.h b/include/asm-ia64/sn/pda.h
index e940d36..cd19f17 100644 (file)
--- a/include/asm-ia64/sn/pda.h
+++ b/include/asm-ia64/sn/pda.h
@@ -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>
 
 
 /*

diff --git a/include/asm-ia64/sn/shub_mmr.h b/include/asm-ia64/sn/shub_mmr.h
index 6ec37e8..2f88508 100644 (file)
--- a/include/asm-ia64/sn/shub_mmr.h
+++ b/include/asm-ia64/sn/shub_mmr.h
@@ -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 */