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-rw-r--r--arch/x86/kernel/es7000_32.c378
1 files changed, 0 insertions, 378 deletions
diff --git a/arch/x86/kernel/es7000_32.c b/arch/x86/kernel/es7000_32.c
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index 53699c9..0000000
--- a/arch/x86/kernel/es7000_32.c
+++ /dev/null
@@ -1,378 +0,0 @@
-/*
- * Written by: Garry Forsgren, Unisys Corporation
- * Natalie Protasevich, Unisys Corporation
- * This file contains the code to configure and interface
- * with Unisys ES7000 series hardware system manager.
- *
- * Copyright (c) 2003 Unisys Corporation. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Unisys Corporation, Township Line & Union Meeting
- * Roads-A, Unisys Way, Blue Bell, Pennsylvania, 19424, or:
- *
- * http://www.unisys.com
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/smp.h>
-#include <linux/string.h>
-#include <linux/spinlock.h>
-#include <linux/errno.h>
-#include <linux/notifier.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/acpi.h>
-#include <asm/io.h>
-#include <asm/nmi.h>
-#include <asm/smp.h>
-#include <asm/atomic.h>
-#include <asm/apicdef.h>
-#include <mach_mpparse.h>
-#include <asm/genapic.h>
-#include <asm/setup.h>
-
-/*
- * ES7000 chipsets
- */
-
-#define NON_UNISYS 0
-#define ES7000_CLASSIC 1
-#define ES7000_ZORRO 2
-
-
-#define MIP_REG 1
-#define MIP_PSAI_REG 4
-
-#define MIP_BUSY 1
-#define MIP_SPIN 0xf0000
-#define MIP_VALID 0x0100000000000000ULL
-#define MIP_PORT(VALUE) ((VALUE >> 32) & 0xffff)
-
-#define MIP_RD_LO(VALUE) (VALUE & 0xffffffff)
-
-struct mip_reg_info {
- unsigned long long mip_info;
- unsigned long long delivery_info;
- unsigned long long host_reg;
- unsigned long long mip_reg;
-};
-
-struct part_info {
- unsigned char type;
- unsigned char length;
- unsigned char part_id;
- unsigned char apic_mode;
- unsigned long snum;
- char ptype[16];
- char sname[64];
- char pname[64];
-};
-
-struct psai {
- unsigned long long entry_type;
- unsigned long long addr;
- unsigned long long bep_addr;
-};
-
-struct es7000_mem_info {
- unsigned char type;
- unsigned char length;
- unsigned char resv[6];
- unsigned long long start;
- unsigned long long size;
-};
-
-struct es7000_oem_table {
- unsigned long long hdr;
- struct mip_reg_info mip;
- struct part_info pif;
- struct es7000_mem_info shm;
- struct psai psai;
-};
-
-#ifdef CONFIG_ACPI
-
-struct oem_table {
- struct acpi_table_header Header;
- u32 OEMTableAddr;
- u32 OEMTableSize;
-};
-
-extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
-extern void unmap_unisys_acpi_oem_table(unsigned long oem_addr);
-#endif
-
-struct mip_reg {
- unsigned long long off_0;
- unsigned long long off_8;
- unsigned long long off_10;
- unsigned long long off_18;
- unsigned long long off_20;
- unsigned long long off_28;
- unsigned long long off_30;
- unsigned long long off_38;
-};
-
-#define MIP_SW_APIC 0x1020b
-#define MIP_FUNC(VALUE) (VALUE & 0xff)
-
-/*
- * ES7000 Globals
- */
-
-static volatile unsigned long *psai = NULL;
-static struct mip_reg *mip_reg;
-static struct mip_reg *host_reg;
-static int mip_port;
-static unsigned long mip_addr, host_addr;
-
-int es7000_plat;
-
-/*
- * GSI override for ES7000 platforms.
- */
-
-static unsigned int base;
-
-static int
-es7000_rename_gsi(int ioapic, int gsi)
-{
- if (es7000_plat == ES7000_ZORRO)
- return gsi;
-
- if (!base) {
- int i;
- for (i = 0; i < nr_ioapics; i++)
- base += nr_ioapic_registers[i];
- }
-
- if (!ioapic && (gsi < 16))
- gsi += base;
- return gsi;
-}
-
-static int wakeup_secondary_cpu_via_mip(int cpu, unsigned long eip)
-{
- unsigned long vect = 0, psaival = 0;
-
- if (psai == NULL)
- return -1;
-
- vect = ((unsigned long)__pa(eip)/0x1000) << 16;
- psaival = (0x1000000 | vect | cpu);
-
- while (*psai & 0x1000000)
- ;
-
- *psai = psaival;
-
- return 0;
-}
-
-static void noop_wait_for_deassert(atomic_t *deassert_not_used)
-{
-}
-
-static int __init es7000_update_genapic(void)
-{
- genapic->wakeup_cpu = wakeup_secondary_cpu_via_mip;
-
- /* MPENTIUMIII */
- if (boot_cpu_data.x86 == 6 &&
- (boot_cpu_data.x86_model >= 7 || boot_cpu_data.x86_model <= 11)) {
- es7000_update_genapic_to_cluster();
- genapic->wait_for_init_deassert = noop_wait_for_deassert;
- genapic->wakeup_cpu = wakeup_secondary_cpu_via_mip;
- }
-
- return 0;
-}
-
-void __init
-setup_unisys(void)
-{
- /*
- * Determine the generation of the ES7000 currently running.
- *
- * es7000_plat = 1 if the machine is a 5xx ES7000 box
- * es7000_plat = 2 if the machine is a x86_64 ES7000 box
- *
- */
- if (!(boot_cpu_data.x86 <= 15 && boot_cpu_data.x86_model <= 2))
- es7000_plat = ES7000_ZORRO;
- else
- es7000_plat = ES7000_CLASSIC;
- ioapic_renumber_irq = es7000_rename_gsi;
-
- x86_quirks->update_genapic = es7000_update_genapic;
-}
-
-/*
- * Parse the OEM Table
- */
-
-int __init
-parse_unisys_oem (char *oemptr)
-{
- int i;
- int success = 0;
- unsigned char type, size;
- unsigned long val;
- char *tp = NULL;
- struct psai *psaip = NULL;
- struct mip_reg_info *mi;
- struct mip_reg *host, *mip;
-
- tp = oemptr;
-
- tp += 8;
-
- for (i=0; i <= 6; i++) {
- type = *tp++;
- size = *tp++;
- tp -= 2;
- switch (type) {
- case MIP_REG:
- mi = (struct mip_reg_info *)tp;
- val = MIP_RD_LO(mi->host_reg);
- host_addr = val;
- host = (struct mip_reg *)val;
- host_reg = __va(host);
- val = MIP_RD_LO(mi->mip_reg);
- mip_port = MIP_PORT(mi->mip_info);
- mip_addr = val;
- mip = (struct mip_reg *)val;
- mip_reg = __va(mip);
- pr_debug("es7000_mipcfg: host_reg = 0x%lx \n",
- (unsigned long)host_reg);
- pr_debug("es7000_mipcfg: mip_reg = 0x%lx \n",
- (unsigned long)mip_reg);
- success++;
- break;
- case MIP_PSAI_REG:
- psaip = (struct psai *)tp;
- if (tp != NULL) {
- if (psaip->addr)
- psai = __va(psaip->addr);
- else
- psai = NULL;
- success++;
- }
- break;
- default:
- break;
- }
- tp += size;
- }
-
- if (success < 2) {
- es7000_plat = NON_UNISYS;
- } else
- setup_unisys();
- return es7000_plat;
-}
-
-#ifdef CONFIG_ACPI
-static unsigned long oem_addrX;
-static unsigned long oem_size;
-int __init find_unisys_acpi_oem_table(unsigned long *oem_addr)
-{
- struct acpi_table_header *header = NULL;
- int i = 0;
-
- while (ACPI_SUCCESS(acpi_get_table("OEM1", i++, &header))) {
- if (!memcmp((char *) &header->oem_id, "UNISYS", 6)) {
- struct oem_table *t = (struct oem_table *)header;
-
- oem_addrX = t->OEMTableAddr;
- oem_size = t->OEMTableSize;
-
- *oem_addr = (unsigned long)__acpi_map_table(oem_addrX,
- oem_size);
- return 0;
- }
- }
- return -1;
-}
-
-void __init unmap_unisys_acpi_oem_table(unsigned long oem_addr)
-{
-}
-#endif
-
-static void
-es7000_spin(int n)
-{
- int i = 0;
-
- while (i++ < n)
- rep_nop();
-}
-
-static int __init
-es7000_mip_write(struct mip_reg *mip_reg)
-{
- int status = 0;
- int spin;
-
- spin = MIP_SPIN;
- while (((unsigned long long)host_reg->off_38 &
- (unsigned long long)MIP_VALID) != 0) {
- if (--spin <= 0) {
- printk("es7000_mip_write: Timeout waiting for Host Valid Flag");
- return -1;
- }
- es7000_spin(MIP_SPIN);
- }
-
- memcpy(host_reg, mip_reg, sizeof(struct mip_reg));
- outb(1, mip_port);
-
- spin = MIP_SPIN;
-
- while (((unsigned long long)mip_reg->off_38 &
- (unsigned long long)MIP_VALID) == 0) {
- if (--spin <= 0) {
- printk("es7000_mip_write: Timeout waiting for MIP Valid Flag");
- return -1;
- }
- es7000_spin(MIP_SPIN);
- }
-
- status = ((unsigned long long)mip_reg->off_0 &
- (unsigned long long)0xffff0000000000ULL) >> 48;
- mip_reg->off_38 = ((unsigned long long)mip_reg->off_38 &
- (unsigned long long)~MIP_VALID);
- return status;
-}
-
-void __init
-es7000_sw_apic(void)
-{
- if (es7000_plat) {
- int mip_status;
- struct mip_reg es7000_mip_reg;
-
- printk("ES7000: Enabling APIC mode.\n");
- memset(&es7000_mip_reg, 0, sizeof(struct mip_reg));
- es7000_mip_reg.off_0 = MIP_SW_APIC;
- es7000_mip_reg.off_38 = (MIP_VALID);
- while ((mip_status = es7000_mip_write(&es7000_mip_reg)) != 0)
- printk("es7000_sw_apic: command failed, status = %x\n",
- mip_status);
- return;
- }
-}
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