From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- arch/i386/mach-es7000/Makefile | 6 + arch/i386/mach-es7000/es7000.h | 110 +++++++++++++ arch/i386/mach-es7000/es7000plat.c | 316 +++++++++++++++++++++++++++++++++++++ 3 files changed, 432 insertions(+) create mode 100644 arch/i386/mach-es7000/Makefile create mode 100644 arch/i386/mach-es7000/es7000.h create mode 100644 arch/i386/mach-es7000/es7000plat.c (limited to 'arch/i386/mach-es7000') diff --git a/arch/i386/mach-es7000/Makefile b/arch/i386/mach-es7000/Makefile new file mode 100644 index 00000000000..69dd4da218d --- /dev/null +++ b/arch/i386/mach-es7000/Makefile @@ -0,0 +1,6 @@ +# +# Makefile for the linux kernel. +# + +obj-$(CONFIG_X86_ES7000) := es7000plat.o +obj-$(CONFIG_X86_GENERICARCH) := es7000plat.o diff --git a/arch/i386/mach-es7000/es7000.h b/arch/i386/mach-es7000/es7000.h new file mode 100644 index 00000000000..70691f0c4ce --- /dev/null +++ b/arch/i386/mach-es7000/es7000.h @@ -0,0 +1,110 @@ +/* + * 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 + */ + +#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; +}; + +struct acpi_table_sdt { + unsigned long pa; + unsigned long count; + struct { + unsigned long pa; + enum acpi_table_id id; + unsigned long size; + } entry[50]; +}; + +struct oem_table { + struct acpi_table_header Header; + u32 OEMTableAddr; + u32 OEMTableSize; +}; + +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) + +extern int parse_unisys_oem (char *oemptr, int oem_entries); +extern int find_unisys_acpi_oem_table(unsigned long *oem_addr, int *length); +extern int es7000_start_cpu(int cpu, unsigned long eip); +extern void es7000_sw_apic(void); diff --git a/arch/i386/mach-es7000/es7000plat.c b/arch/i386/mach-es7000/es7000plat.c new file mode 100644 index 00000000000..d5936d50047 --- /dev/null +++ b/arch/i386/mach-es7000/es7000plat.c @@ -0,0 +1,316 @@ +/* + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "es7000.h" + +/* + * ES7000 Globals + */ + +volatile unsigned long *psai = NULL; +struct mip_reg *mip_reg; +struct mip_reg *host_reg; +int mip_port; +unsigned long mip_addr, host_addr; + +#if defined(CONFIG_X86_IO_APIC) && (defined(CONFIG_ACPI_INTERPRETER) || defined(CONFIG_ACPI_BOOT)) + +/* + * GSI override for ES7000 platforms. + */ + +static unsigned int base; + +static int +es7000_rename_gsi(int ioapic, int 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; +} + +#endif // (CONFIG_X86_IO_APIC) && (CONFIG_ACPI_INTERPRETER || CONFIG_ACPI_BOOT) + +/* + * Parse the OEM Table + */ + +int __init +parse_unisys_oem (char *oemptr, int oem_entries) +{ + 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 <= oem_entries; 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); + Dprintk("es7000_mipcfg: host_reg = 0x%lx \n", + (unsigned long)host_reg); + Dprintk("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; + } + if (i == 6) break; + tp += size; + } + + if (success < 2) { + es7000_plat = 0; + } else { + printk("\nEnabling ES7000 specific features...\n"); + /* + * Determine the generation of the ES7000 currently running. + * + * es7000_plat = 0 if the machine is NOT a Unisys ES7000 box + * 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 = 2; + else + es7000_plat = 1; + + ioapic_renumber_irq = es7000_rename_gsi; + } + return es7000_plat; +} + +int __init +find_unisys_acpi_oem_table(unsigned long *oem_addr, int *length) +{ + struct acpi_table_rsdp *rsdp = NULL; + unsigned long rsdp_phys = 0; + struct acpi_table_header *header = NULL; + int i; + struct acpi_table_sdt sdt; + + rsdp_phys = acpi_find_rsdp(); + rsdp = __va(rsdp_phys); + if (rsdp->rsdt_address) { + struct acpi_table_rsdt *mapped_rsdt = NULL; + sdt.pa = rsdp->rsdt_address; + + header = (struct acpi_table_header *) + __acpi_map_table(sdt.pa, sizeof(struct acpi_table_header)); + if (!header) + return -ENODEV; + + sdt.count = (header->length - sizeof(struct acpi_table_header)) >> 3; + mapped_rsdt = (struct acpi_table_rsdt *) + __acpi_map_table(sdt.pa, header->length); + if (!mapped_rsdt) + return -ENODEV; + + header = &mapped_rsdt->header; + + for (i = 0; i < sdt.count; i++) + sdt.entry[i].pa = (unsigned long) mapped_rsdt->entry[i]; + }; + for (i = 0; i < sdt.count; i++) { + + header = (struct acpi_table_header *) + __acpi_map_table(sdt.entry[i].pa, + sizeof(struct acpi_table_header)); + if (!header) + continue; + if (!strncmp((char *) &header->signature, "OEM1", 4)) { + if (!strncmp((char *) &header->oem_id, "UNISYS", 6)) { + void *addr; + struct oem_table *t; + acpi_table_print(header, sdt.entry[i].pa); + t = (struct oem_table *) __acpi_map_table(sdt.entry[i].pa, header->length); + addr = (void *) __acpi_map_table(t->OEMTableAddr, t->OEMTableSize); + *length = header->length; + *oem_addr = (unsigned long) addr; + return 0; + } + } + } + Dprintk("ES7000: did not find Unisys ACPI OEM table!\n"); + return -1; +} + +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; +} + +int +es7000_start_cpu(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; + +} + +int +es7000_stop_cpu(int cpu) +{ + int startup; + + if (psai == NULL) + return -1; + + startup= (0x1000000 | cpu); + + while ((*psai & 0xff00ffff) != startup) + ; + + startup = (*psai & 0xff0000) >> 16; + *psai &= 0xffffff; + + return 0; + +} + +void __init +es7000_sw_apic() +{ + 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; + } +} -- cgit v1.2.3