patch-2.4.22 linux-2.4.22/include/asm-ia64/sn/pci/bridge.h
Next file: linux-2.4.22/include/asm-ia64/sn/pci/pci_bus_cvlink.h
Previous file: linux-2.4.22/include/asm-ia64/sn/nodepda.h
Back to the patch index
Back to the overall index
- Lines: 437
- Date:
2003-08-25 04:44:43.000000000 -0700
- Orig file:
linux-2.4.21/include/asm-ia64/sn/pci/bridge.h
- Orig date:
2003-06-13 07:51:38.000000000 -0700
diff -urN linux-2.4.21/include/asm-ia64/sn/pci/bridge.h linux-2.4.22/include/asm-ia64/sn/pci/bridge.h
@@ -4,7 +4,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (c) 1992-1997,2000-2002 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (c) 1992-1997,2000-2003 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_SN_PCI_BRIDGE_H
#define _ASM_SN_PCI_BRIDGE_H
@@ -14,7 +14,7 @@
* bridge.h - header file for bridge chip and bridge portion of xbridge chip
*
* Also including offsets for unique PIC registers.
- * The PIC asic is a follow-on to Xbridge and most of it's registers are
+ * The PIC asic is a follow-on to Xbridge and most of its registers are
* identical to those of Xbridge. PIC is different than Xbridge in that
* it will accept 64 bit register access and that, in some cases, data
* is kept in bits 63:32. PIC registers that are identical to Xbridge
@@ -36,7 +36,6 @@
#include <linux/config.h>
#include <asm/sn/xtalk/xwidget.h>
-#ifndef CONFIG_IA64_SGI_SN1
#include <asm/sn/pci/pic.h>
extern int io_get_sh_swapper(nasid_t);
@@ -45,7 +44,6 @@
#define BRIDGE_REG_SET32(reg) \
*(volatile uint32_t *) (((uint64_t)reg)^4)
-#endif /* CONFIG_IA64_SGI_SN1 */
/* I/O page size */
@@ -111,7 +109,6 @@
* Generated from Bridge spec dated 04oct95
*/
-#ifndef CONFIG_IA64_SGI_SN1
/*
* pic_widget_cfg_s is a local definition of widget_cfg_t but with
@@ -186,8 +183,8 @@
/*
* BRIDGE, XBRIDGE, PIC register definitions. NOTE: Prior to PIC, registers
- * were a 32bit quantity and double word aligned (and only accessable as a
- * 32bit word. PIC registers are 64bits and accessable as words or double
+ * were a 32bit quantity and double word aligned (and only accessible as a
+ * 32bit word. PIC registers are 64bits and accessible as words or double
* words. PIC registers that have valid bits (ie. not just reserved) in the
* upper 32bits are defined as a union of one 64bit picreg_t and two 32bit
* bridgereg_t so we can access them both ways.
@@ -605,292 +602,6 @@
} b_external_flash;
} bridge_t;
-#else /* CONFIG_IA64_SGI_SN1 */
-
-
-typedef volatile struct bridge_s {
-
- /* Local Registers 0x000000-0x00FFFF */
-
- /* standard widget configuration 0x000000-0x000057 */
- widget_cfg_t b_widget; /* 0x000000 */
-
- /* helper fieldnames for accessing bridge widget */
-
-#define b_wid_id b_widget.w_id
-#define b_wid_stat b_widget.w_status
-#define b_wid_err_upper b_widget.w_err_upper_addr
-#define b_wid_err_lower b_widget.w_err_lower_addr
-#define b_wid_control b_widget.w_control
-#define b_wid_req_timeout b_widget.w_req_timeout
-#define b_wid_int_upper b_widget.w_intdest_upper_addr
-#define b_wid_int_lower b_widget.w_intdest_lower_addr
-#define b_wid_err_cmdword b_widget.w_err_cmd_word
-#define b_wid_llp b_widget.w_llp_cfg
-#define b_wid_tflush b_widget.w_tflush
-
- /*
- * we access these through synergy unswizzled space, so the address
- * gets twiddled (i.e. references to 0x4 actually go to 0x0 and vv.)
- * That's why we put the register first and filler second.
- */
- /* bridge-specific widget configuration 0x000058-0x00007F */
- bridgereg_t b_wid_aux_err; /* 0x00005C */
- bridgereg_t _pad_000058;
-
- bridgereg_t b_wid_resp_upper; /* 0x000064 */
- bridgereg_t _pad_000060;
-
- bridgereg_t b_wid_resp_lower; /* 0x00006C */
- bridgereg_t _pad_000068;
-
- bridgereg_t b_wid_tst_pin_ctrl; /* 0x000074 */
- bridgereg_t _pad_000070;
-
- bridgereg_t _pad_000078[2];
-
- /* PMU & Map 0x000080-0x00008F */
- bridgereg_t b_dir_map; /* 0x000084 */
- bridgereg_t _pad_000080;
- bridgereg_t _pad_000088[2];
-
- /* SSRAM 0x000090-0x00009F */
- bridgereg_t b_ram_perr_or_map_fault;/* 0x000094 */
- bridgereg_t _pad_000090;
-#define b_ram_perr b_ram_perr_or_map_fault /* Bridge */
-#define b_map_fault b_ram_perr_or_map_fault /* Xbridge */
- bridgereg_t _pad_000098[2];
-
- /* Arbitration 0x0000A0-0x0000AF */
- bridgereg_t b_arb; /* 0x0000A4 */
- bridgereg_t _pad_0000A0;
- bridgereg_t _pad_0000A8[2];
-
- /* Number In A Can 0x0000B0-0x0000BF */
- bridgereg_t b_nic; /* 0x0000B4 */
- bridgereg_t _pad_0000B0;
- bridgereg_t _pad_0000B8[2];
-
- /* PCI/GIO 0x0000C0-0x0000FF */
- bridgereg_t b_bus_timeout; /* 0x0000C4 */
- bridgereg_t _pad_0000C0;
-#define b_pci_bus_timeout b_bus_timeout
-
- bridgereg_t b_pci_cfg; /* 0x0000CC */
- bridgereg_t _pad_0000C8;
-
- bridgereg_t b_pci_err_upper; /* 0x0000D4 */
- bridgereg_t _pad_0000D0;
-
- bridgereg_t b_pci_err_lower; /* 0x0000DC */
- bridgereg_t _pad_0000D8;
- bridgereg_t _pad_0000E0[8];
-#define b_gio_err_lower b_pci_err_lower
-#define b_gio_err_upper b_pci_err_upper
-
- /* Interrupt 0x000100-0x0001FF */
- bridgereg_t b_int_status; /* 0x000104 */
- bridgereg_t _pad_000100;
-
- bridgereg_t b_int_enable; /* 0x00010C */
- bridgereg_t _pad_000108;
-
- bridgereg_t b_int_rst_stat; /* 0x000114 */
- bridgereg_t _pad_000110;
-
- bridgereg_t b_int_mode; /* 0x00011C */
- bridgereg_t _pad_000118;
-
- bridgereg_t b_int_device; /* 0x000124 */
- bridgereg_t _pad_000120;
-
- bridgereg_t b_int_host_err; /* 0x00012C */
- bridgereg_t _pad_000128;
-
- struct {
- bridgereg_t addr; /* 0x0001{34,,,6C} */
- bridgereg_t __pad; /* 0x0001{30,,,68} */
- } b_int_addr[8]; /* 0x000130 */
-
- bridgereg_t b_err_int_view; /* 0x000174 */
- bridgereg_t _pad_000170;
-
- bridgereg_t b_mult_int; /* 0x00017c */
- bridgereg_t _pad_000178;
-
- struct {
- bridgereg_t intr; /* 0x0001{84,,,BC} */
- bridgereg_t __pad; /* 0x0001{80,,,B8} */
- } b_force_always[8]; /* 0x000180 */
-
- struct {
- bridgereg_t intr; /* 0x0001{C4,,,FC} */
- bridgereg_t __pad; /* 0x0001{C0,,,F8} */
- } b_force_pin[8]; /* 0x0001C0 */
-
- /* Device 0x000200-0x0003FF */
- struct {
- bridgereg_t reg; /* 0x0002{04,,,3C} */
- bridgereg_t __pad; /* 0x0002{00,,,38} */
- } b_device[8]; /* 0x000200 */
-
- struct {
- bridgereg_t reg; /* 0x0002{44,,,7C} */
- bridgereg_t __pad; /* 0x0002{40,,,78} */
- } b_wr_req_buf[8]; /* 0x000240 */
-
- struct {
- bridgereg_t reg; /* 0x0002{84,,,8C} */
- bridgereg_t __pad; /* 0x0002{80,,,88} */
- } b_rrb_map[2]; /* 0x000280 */
-#define b_even_resp b_rrb_map[0].reg /* 0x000284 */
-#define b_odd_resp b_rrb_map[1].reg /* 0x00028C */
-
- bridgereg_t b_resp_status; /* 0x000294 */
- bridgereg_t _pad_000290;
-
- bridgereg_t b_resp_clear; /* 0x00029C */
- bridgereg_t _pad_000298;
-
- bridgereg_t _pad_0002A0[24];
-
- /* Xbridge only */
- struct {
- bridgereg_t upper; /* 0x0003{04,,,F4} */
- bridgereg_t __pad1; /* 0x0003{00,,,F0} */
- bridgereg_t lower; /* 0x0003{0C,,,FC} */
- bridgereg_t __pad2; /* 0x0003{08,,,F8} */
- } b_buf_addr_match[16];
-
- /* Performance Monitor Registers (even only) */
- struct {
- bridgereg_t flush_w_touch; /* 0x000404,,,5C4 */
- bridgereg_t __pad1; /* 0x000400,,,5C0 */
-
- bridgereg_t flush_wo_touch; /* 0x00040C,,,5CC */
- bridgereg_t __pad2; /* 0x000408,,,5C8 */
-
- bridgereg_t inflight; /* 0x000414,,,5D4 */
- bridgereg_t __pad3; /* 0x000410,,,5D0 */
-
- bridgereg_t prefetch; /* 0x00041C,,,5DC */
- bridgereg_t __pad4; /* 0x000418,,,5D8 */
-
- bridgereg_t total_pci_retry; /* 0x000424,,,5E4 */
- bridgereg_t __pad5; /* 0x000420,,,5E0 */
-
- bridgereg_t max_pci_retry; /* 0x00042C,,,5EC */
- bridgereg_t __pad6; /* 0x000428,,,5E8 */
-
- bridgereg_t max_latency; /* 0x000434,,,5F4 */
- bridgereg_t __pad7; /* 0x000430,,,5F0 */
-
- bridgereg_t clear_all; /* 0x00043C,,,5FC */
- bridgereg_t __pad8; /* 0x000438,,,5F8 */
- } b_buf_count[8];
-
- char _pad_000600[0x010000 - 0x000600];
-
- /*
- * The Xbridge has 1024 internal ATE's and the Bridge has 128.
- * Make enough room for the Xbridge ATE's and depend on runtime
- * checks to limit access to bridge ATE's.
- */
-
- /* Internal Address Translation Entry RAM 0x010000-0x011fff */
- union {
- bridge_ate_t wr; /* write-only */
- struct {
- bridgereg_t rd; /* read-only */
- bridgereg_t _p_pad;
- } hi;
- } b_int_ate_ram[XBRIDGE_INTERNAL_ATES];
-
-#define b_int_ate_ram_lo(idx) b_int_ate_ram[idx+512].hi.rd
-
- /* the xbridge read path for internal ates starts at 0x12000.
- * I don't believe we ever try to read the ates.
- */
- /* Internal Address Translation Entry RAM LOW 0x012000-0x013fff */
- struct {
- bridgereg_t rd;
- bridgereg_t _p_pad;
- } xb_int_ate_ram_lo[XBRIDGE_INTERNAL_ATES];
-
- char _pad_014000[0x20000 - 0x014000];
-
- /* PCI Device Configuration Spaces 0x020000-0x027FFF */
- union { /* make all access sizes available. */
- uchar_t c[0x1000 / 1];
- uint16_t s[0x1000 / 2];
- uint32_t l[0x1000 / 4];
- uint64_t d[0x1000 / 8];
- union {
- uchar_t c[0x100 / 1];
- uint16_t s[0x100 / 2];
- uint32_t l[0x100 / 4];
- uint64_t d[0x100 / 8];
- } f[8];
- } b_type0_cfg_dev[8]; /* 0x020000 */
-
- /* PCI Type 1 Configuration Space 0x028000-0x028FFF */
- union { /* make all access sizes available. */
- uchar_t c[0x1000 / 1];
- uint16_t s[0x1000 / 2];
- uint32_t l[0x1000 / 4];
- uint64_t d[0x1000 / 8];
- union {
- uchar_t c[0x100 / 1];
- uint16_t s[0x100 / 2];
- uint32_t l[0x100 / 4];
- uint64_t d[0x100 / 8];
- } f[8];
- } b_type1_cfg; /* 0x028000-0x029000 */
-
- char _pad_029000[0x007000]; /* 0x029000-0x030000 */
-
- /* PCI Interrupt Acknowledge Cycle 0x030000 */
- union {
- uchar_t c[8 / 1];
- uint16_t s[8 / 2];
- uint32_t l[8 / 4];
- uint64_t d[8 / 8];
- } b_pci_iack; /* 0x030000 */
-
- uchar_t _pad_030007[0x04fff8]; /* 0x030008-0x07FFFF */
-
- /* External Address Translation Entry RAM 0x080000-0x0FFFFF */
- bridge_ate_t b_ext_ate_ram[0x10000];
-
- /* Reserved 0x100000-0x1FFFFF */
- char _pad_100000[0x200000-0x100000];
-
- /* PCI/GIO Device Spaces 0x200000-0xBFFFFF */
- union { /* make all access sizes available. */
- uchar_t c[0x100000 / 1];
- uint16_t s[0x100000 / 2];
- uint32_t l[0x100000 / 4];
- uint64_t d[0x100000 / 8];
- } b_devio_raw[10]; /* 0x200000 */
-
- /* b_devio macro is a bit strange; it reflects the
- * fact that the Bridge ASIC provides 2M for the
- * first two DevIO windows and 1M for the other six.
- */
-#define b_devio(n) b_devio_raw[((n)<2)?(n*2):(n+2)]
-
- /* External Flash Proms 1,0 0xC00000-0xFFFFFF */
- union { /* make all access sizes available. */
- uchar_t c[0x400000 / 1]; /* read-only */
- uint16_t s[0x400000 / 2]; /* read-write */
- uint32_t l[0x400000 / 4]; /* read-only */
- uint64_t d[0x400000 / 8]; /* read-only */
- } b_external_flash; /* 0xC00000 */
-} bridge_t;
-
-#endif /* CONFIG_IA64_SGI_SN1 */
-
-
#define berr_field berr_un.berr_st
#endif /* __ASSEMBLY__ */
@@ -1428,8 +1139,7 @@
#define BRIDGE_ISR_ERRORS \
(BRIDGE_ISR_LINK_ERROR|BRIDGE_ISR_PCIBUS_ERROR| \
BRIDGE_ISR_XTALK_ERROR|BRIDGE_ISR_SSRAM_PERR| \
- BRIDGE_ISR_PMU_ESIZE_FAULT|PIC_ISR_PCIX_ARB_ERR| \
- PIC_ISR_INT_RAM_PERR)
+ BRIDGE_ISR_PMU_ESIZE_FAULT|PIC_ISR_INT_RAM_PERR)
/*
* List of Errors which are fatal and kill the sytem
@@ -1598,22 +1308,6 @@
#define BRIDGE_TMO_PCI_RETRY_CNT_MAX 0x3ff
-#ifdef SN0
-/*
- * The NASID should be shifted by this amount and stored into the
- * interrupt(x) register.
- */
-#define BRIDGE_INT_ADDR_NASID_SHFT 8
-
-/*
- * The BRIDGE_INT_ADDR_DEST_IO bit should be set to send an interrupt to
- * memory.
- */
-#define BRIDGE_INT_ADDR_DEST_IO (1 << 17)
-#define BRIDGE_INT_ADDR_DEST_MEM 0
-#define BRIDGE_INT_ADDR_MASK (1 << 17)
-#endif
-
/* Bridge device(x) register bits definition */
#define BRIDGE_DEV_ERR_LOCK_EN (1ull << 28)
#define BRIDGE_DEV_PAGE_CHK_DIS (1ull << 27)
@@ -1684,7 +1378,7 @@
/* RRB clear register */
#define BRIDGE_RRB_CLEAR(r) (0x00000001<<(r))
-/* Defines for the virtual channels so we dont hardcode 0-3 within code */
+/* Defines for the virtual channels so we don't hardcode 0-3 within code */
#define VCHAN0 0 /* virtual channel 0 (ie. the "normal" channel) */
#define VCHAN1 1 /* virtual channel 1 */
#define VCHAN2 2 /* virtual channel 2 - PIC only */
@@ -1728,6 +1422,38 @@
#define BRIDGE_PCI_IO_LIMIT BRIDGE_PCIIO_XTALK_ALIAS_LIMIT
/*
+ * Macros for Xtalk to Bridge bus (PCI) PIO
+ * refer to section 5.2.1 Figure 4 of the "PCI Interface Chip (PIC) Volume II
+ * Programmer's Reference" (Revision 0.8 as of this writing).
+ *
+ * These are PIC bridge specific. A separate set of macros was defined
+ * because PIC deviates from Bridge/Xbridge by not supporting a big-window
+ * alias for PCI I/O space, and also redefines XTALK addresses
+ * 0x0000C0000000L and 0x000100000000L to be PCI MEM aliases for the second
+ * bus.
+ */
+
+/* XTALK addresses that map into PIC Bridge Bus addr space */
+#define PICBRIDGE0_PIO32_XTALK_ALIAS_BASE 0x000040000000L
+#define PICBRIDGE0_PIO32_XTALK_ALIAS_LIMIT 0x00007FFFFFFFL
+#define PICBRIDGE0_PIO64_XTALK_ALIAS_BASE 0x000080000000L
+#define PICBRIDGE0_PIO64_XTALK_ALIAS_LIMIT 0x0000BFFFFFFFL
+#define PICBRIDGE1_PIO32_XTALK_ALIAS_BASE 0x0000C0000000L
+#define PICBRIDGE1_PIO32_XTALK_ALIAS_LIMIT 0x0000FFFFFFFFL
+#define PICBRIDGE1_PIO64_XTALK_ALIAS_BASE 0x000100000000L
+#define PICBRIDGE1_PIO64_XTALK_ALIAS_LIMIT 0x00013FFFFFFFL
+
+/* XTALK addresses that map into PCI addresses */
+#define PICBRIDGE0_PCI_MEM32_BASE PICBRIDGE0_PIO32_XTALK_ALIAS_BASE
+#define PICBRIDGE0_PCI_MEM32_LIMIT PICBRIDGE0_PIO32_XTALK_ALIAS_LIMIT
+#define PICBRIDGE0_PCI_MEM64_BASE PICBRIDGE0_PIO64_XTALK_ALIAS_BASE
+#define PICBRIDGE0_PCI_MEM64_LIMIT PICBRIDGE0_PIO64_XTALK_ALIAS_LIMIT
+#define PICBRIDGE1_PCI_MEM32_BASE PICBRIDGE1_PIO32_XTALK_ALIAS_BASE
+#define PICBRIDGE1_PCI_MEM32_LIMIT PICBRIDGE1_PIO32_XTALK_ALIAS_LIMIT
+#define PICBRIDGE1_PCI_MEM64_BASE PICBRIDGE1_PIO64_XTALK_ALIAS_BASE
+#define PICBRIDGE1_PCI_MEM64_LIMIT PICBRIDGE1_PIO64_XTALK_ALIAS_LIMIT
+
+/*
* Macros for Bridge bus (PCI/GIO) to Xtalk DMA
*/
/* Bridge Bus DMA addresses */
@@ -1845,9 +1571,6 @@
#define ATE_SWAP_ON(x) ((x) |= (1 << ATE_SWAPSHIFT))
#define ATE_SWAP_OFF(x) ((x) &= ~(1 << ATE_SWAPSHIFT))
-#define is_xbridge(bridge) IS_XBRIDGE(bridge->b_wid_id)
-#define is_pic(bridge) IS_PIC_BRIDGE(bridge->b_wid_id)
-
/* extern declarations */
#ifndef __ASSEMBLY__
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)