[IA64-SGI] sn pci provider for TIOCE (pci

Altix patch to add an SN pci provider for TIOCE, which is SGI's 
PCI Express implementation.
Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/sn/kernel/io_init.c

@@ -18,6 +18,7 @@
 #include <asm/sn/simulator.h>
 #include <asm/sn/sn_sal.h>
 #include <asm/sn/tioca_provider.h>
+#include <asm/sn/tioce_provider.h>
 #include "xtalk/hubdev.h"
 #include "xtalk/xwidgetdev.h"
 
@@ -481,6 +482,7 @@ static int __init sn_pci_init(void)
 
 	pcibr_init_provider();
 	tioca_init_provider();
+	tioce_init_provider();
 
 	/*
 	 * This is needed to avoid bounce limit checks in the blk layer

arch/ia64/sn/pci/Makefile

@@ -7,4 +7,4 @@
 #
 # Makefile for the sn pci general routines.
 
-obj-y := pci_dma.o tioca_provider.o pcibr/ 
+obj-y := pci_dma.o tioca_provider.o tioce_provider.o pcibr/

include/asm-ia64/sn/pcibus_provider_defs.h

@@ -18,8 +18,9 @@
 #define PCIIO_ASIC_TYPE_PIC	2
 #define PCIIO_ASIC_TYPE_TIOCP	3
 #define PCIIO_ASIC_TYPE_TIOCA	4
+#define PCIIO_ASIC_TYPE_TIOCE	5
 
-#define PCIIO_ASIC_MAX_TYPES	5
+#define PCIIO_ASIC_MAX_TYPES	6
 
 /*
  * Common pciio bus provider data.  There should be one of these as the

include/asm-ia64/sn/tioce_provider.h

+/**************************************************************************
+ *             Copyright (C) 2005, Silicon Graphics, Inc.                 *
+ *									  *
+ *  These coded instructions, statements, and computer programs	 contain  *
+ *  unpublished	 proprietary  information of Silicon Graphics, Inc., and  *
+ *  are protected by Federal copyright law.  They  may	not be disclosed  *
+ *  to	third  parties	or copied or duplicated in any form, in whole or  *
+ *  in part, without the prior written consent of Silicon Graphics, Inc.  *
+ *									  *
+ **************************************************************************/
+
+#ifndef _ASM_IA64_SN_CE_PROVIDER_H
+#define _ASM_IA64_SN_CE_PROVIDER_H
+
+#include <asm/sn/pcibus_provider_defs.h>
+#include <asm/sn/tioce.h>
+
+/*
+ * Common TIOCE structure shared between the prom and kernel
+ *
+ * DO NOT CHANGE THIS STRUCT WITHOUT MAKING CORRESPONDING CHANGES TO THE
+ * PROM VERSION.
+ */
+struct tioce_common {
+	struct pcibus_bussoft	ce_pcibus;	/* common pciio header */
+
+	uint32_t		ce_rev;
+	uint64_t		ce_kernel_private;
+	uint64_t		ce_prom_private;
+};
+
+struct tioce_kernel {
+	struct tioce_common	*ce_common;
+	spinlock_t		ce_lock;
+	struct list_head	ce_dmamap_list;
+
+	uint64_t		ce_ate40_shadow[TIOCE_NUM_M40_ATES];
+	uint64_t		ce_ate3240_shadow[TIOCE_NUM_M3240_ATES];
+	uint32_t		ce_ate3240_pagesize;
+
+	uint8_t			ce_port1_secondary;
+
+	/* per-port resources */
+	struct {
+		int 		dirmap_refcnt;
+		uint64_t	dirmap_shadow;
+	} ce_port[TIOCE_NUM_PORTS];
+};
+
+struct tioce_dmamap {
+	struct list_head	ce_dmamap_list;	/* headed by tioce_kernel */
+	uint32_t		refcnt;
+
+	uint64_t		nbytes;		/* # bytes mapped */
+
+	uint64_t		ct_start;	/* coretalk start address */
+	uint64_t		pci_start;	/* bus start address */
+
+	uint64_t		*ate_hw;	/* hw ptr of first ate in map */
+	uint64_t		*ate_shadow;	/* shadow ptr of firat ate */
+	uint16_t		ate_count;	/* # ate's in the map */
+};
+
+extern int tioce_init_provider(void);
+
+#endif  /* __ASM_IA64_SN_CE_PROVIDER_H */