[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>

4 files changed, 69 insertions, 11 deletions

diff --git a/include/asm-ia64/sn/bte.h b/include/asm-ia64/sn/bte.h
index 0ec27f9..f50da3d 100644
--- 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
--- 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
--- 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
--- 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 */