obj-y += time_$(BITS).o ioport.o ldt.o dumpstack.o
obj-y += setup.o i8259.o irqinit_$(BITS).o
obj-$(CONFIG_X86_VISWS) += visws_quirks.o
-obj-$(CONFIG_X86_32) += probe_32.o probe_roms_32.o
+obj-$(CONFIG_X86_32) += probe_roms_32.o
obj-$(CONFIG_X86_32) += sys_i386_32.o i386_ksyms_32.o
obj-$(CONFIG_X86_64) += sys_x86_64.o x8664_ksyms_64.o
obj-$(CONFIG_X86_64) += syscall_64.o vsyscall_64.o
obj-$(CONFIG_KEXEC) += machine_kexec_$(BITS).o
obj-$(CONFIG_KEXEC) += relocate_kernel_$(BITS).o crash.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump_$(BITS).o
-obj-$(CONFIG_X86_BIGSMP) += bigsmp_32.o
-obj-$(CONFIG_X86_NUMAQ) += numaq_32.o
-obj-$(CONFIG_X86_ES7000) += es7000_32.o
-obj-$(CONFIG_X86_SUMMIT) += summit_32.o
obj-y += vsmp_64.o
obj-$(CONFIG_KPROBES) += kprobes.o
obj-$(CONFIG_MODULES) += module_$(BITS).o
# Makefile for local APIC drivers and for the IO-APIC code
#
-obj-y := apic.o ipi.o nmi.o
+obj-y := apic.o probe_$(BITS).o ipi.o nmi.o
obj-$(CONFIG_X86_IO_APIC) += io_apic.o
obj-$(CONFIG_SMP) += ipi.o
+obj-$
ifeq ($(CONFIG_X86_64),y)
-obj-y += apic_64.o apic_flat_64.o
+obj-y += apic_flat_64.o
obj-$(CONFIG_X86_X2APIC) += x2apic_cluster.o
obj-$(CONFIG_X86_X2APIC) += x2apic_phys.o
obj-$(CONFIG_X86_UV) += x2apic_uv_x.o
endif
+obj-$(CONFIG_X86_BIGSMP) += bigsmp_32.o
+obj-$(CONFIG_X86_NUMAQ) += numaq_32.o
+obj-$(CONFIG_X86_ES7000) += es7000_32.o
+obj-$(CONFIG_X86_SUMMIT) += summit_32.o
+++ /dev/null
-/*
- * Copyright 2004 James Cleverdon, IBM.
- * Subject to the GNU Public License, v.2
- *
- * Generic APIC sub-arch probe layer.
- *
- * Hacked for x86-64 by James Cleverdon from i386 architecture code by
- * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and
- * James Cleverdon.
- */
-#include <linux/threads.h>
-#include <linux/cpumask.h>
-#include <linux/string.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/ctype.h>
-#include <linux/init.h>
-#include <linux/hardirq.h>
-#include <linux/dmar.h>
-
-#include <asm/smp.h>
-#include <asm/apic.h>
-#include <asm/ipi.h>
-#include <asm/setup.h>
-
-extern struct apic apic_flat;
-extern struct apic apic_physflat;
-extern struct apic apic_x2xpic_uv_x;
-extern struct apic apic_x2apic_phys;
-extern struct apic apic_x2apic_cluster;
-
-struct apic __read_mostly *apic = &apic_flat;
-EXPORT_SYMBOL_GPL(apic);
-
-static struct apic *apic_probe[] __initdata = {
-#ifdef CONFIG_X86_UV
- &apic_x2apic_uv_x,
-#endif
-#ifdef CONFIG_X86_X2APIC
- &apic_x2apic_phys,
- &apic_x2apic_cluster,
-#endif
- &apic_physflat,
- NULL,
-};
-
-/*
- * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode.
- */
-void __init default_setup_apic_routing(void)
-{
-#ifdef CONFIG_X86_X2APIC
- if (apic == &apic_x2apic_phys || apic == &apic_x2apic_cluster) {
- if (!intr_remapping_enabled)
- apic = &apic_flat;
- }
-#endif
-
- if (apic == &apic_flat) {
- if (max_physical_apicid >= 8)
- apic = &apic_physflat;
- printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
- }
-
- if (x86_quirks->update_apic)
- x86_quirks->update_apic();
-}
-
-/* Same for both flat and physical. */
-
-void apic_send_IPI_self(int vector)
-{
- __default_send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL);
-}
-
-int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
-{
- int i;
-
- for (i = 0; apic_probe[i]; ++i) {
- if (apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id)) {
- apic = apic_probe[i];
- printk(KERN_INFO "Setting APIC routing to %s.\n",
- apic->name);
- return 1;
- }
- }
- return 0;
-}
--- /dev/null
+/*
+ * APIC driver for "bigsmp" xAPIC machines with more than 8 virtual CPUs.
+ *
+ * Drives the local APIC in "clustered mode".
+ */
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/dmi.h>
+#include <linux/smp.h>
+
+#include <asm/apicdef.h>
+#include <asm/fixmap.h>
+#include <asm/mpspec.h>
+#include <asm/apic.h>
+#include <asm/ipi.h>
+
+static inline unsigned bigsmp_get_apic_id(unsigned long x)
+{
+ return (x >> 24) & 0xFF;
+}
+
+static inline int bigsmp_apic_id_registered(void)
+{
+ return 1;
+}
+
+static inline const cpumask_t *bigsmp_target_cpus(void)
+{
+#ifdef CONFIG_SMP
+ return &cpu_online_map;
+#else
+ return &cpumask_of_cpu(0);
+#endif
+}
+
+static inline unsigned long
+bigsmp_check_apicid_used(physid_mask_t bitmap, int apicid)
+{
+ return 0;
+}
+
+static inline unsigned long bigsmp_check_apicid_present(int bit)
+{
+ return 1;
+}
+
+static inline unsigned long calculate_ldr(int cpu)
+{
+ unsigned long val, id;
+
+ val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
+ id = per_cpu(x86_bios_cpu_apicid, cpu);
+ val |= SET_APIC_LOGICAL_ID(id);
+
+ return val;
+}
+
+/*
+ * Set up the logical destination ID.
+ *
+ * Intel recommends to set DFR, LDR and TPR before enabling
+ * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel
+ * document number 292116). So here it goes...
+ */
+static inline void bigsmp_init_apic_ldr(void)
+{
+ unsigned long val;
+ int cpu = smp_processor_id();
+
+ apic_write(APIC_DFR, APIC_DFR_FLAT);
+ val = calculate_ldr(cpu);
+ apic_write(APIC_LDR, val);
+}
+
+static inline void bigsmp_setup_apic_routing(void)
+{
+ printk(KERN_INFO
+ "Enabling APIC mode: Physflat. Using %d I/O APICs\n",
+ nr_ioapics);
+}
+
+static inline int bigsmp_apicid_to_node(int logical_apicid)
+{
+ return apicid_2_node[hard_smp_processor_id()];
+}
+
+static inline int bigsmp_cpu_present_to_apicid(int mps_cpu)
+{
+ if (mps_cpu < nr_cpu_ids)
+ return (int) per_cpu(x86_bios_cpu_apicid, mps_cpu);
+
+ return BAD_APICID;
+}
+
+static inline physid_mask_t bigsmp_apicid_to_cpu_present(int phys_apicid)
+{
+ return physid_mask_of_physid(phys_apicid);
+}
+
+/* Mapping from cpu number to logical apicid */
+static inline int bigsmp_cpu_to_logical_apicid(int cpu)
+{
+ if (cpu >= nr_cpu_ids)
+ return BAD_APICID;
+ return cpu_physical_id(cpu);
+}
+
+static inline physid_mask_t bigsmp_ioapic_phys_id_map(physid_mask_t phys_map)
+{
+ /* For clustered we don't have a good way to do this yet - hack */
+ return physids_promote(0xFFL);
+}
+
+static inline void bigsmp_setup_portio_remap(void)
+{
+}
+
+static inline int bigsmp_check_phys_apicid_present(int boot_cpu_physical_apicid)
+{
+ return 1;
+}
+
+/* As we are using single CPU as destination, pick only one CPU here */
+static inline unsigned int bigsmp_cpu_mask_to_apicid(const cpumask_t *cpumask)
+{
+ return bigsmp_cpu_to_logical_apicid(first_cpu(*cpumask));
+}
+
+static inline unsigned int
+bigsmp_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+ const struct cpumask *andmask)
+{
+ int cpu;
+
+ /*
+ * We're using fixed IRQ delivery, can only return one phys APIC ID.
+ * May as well be the first.
+ */
+ for_each_cpu_and(cpu, cpumask, andmask) {
+ if (cpumask_test_cpu(cpu, cpu_online_mask))
+ break;
+ }
+ if (cpu < nr_cpu_ids)
+ return bigsmp_cpu_to_logical_apicid(cpu);
+
+ return BAD_APICID;
+}
+
+static inline int bigsmp_phys_pkg_id(int cpuid_apic, int index_msb)
+{
+ return cpuid_apic >> index_msb;
+}
+
+static inline void bigsmp_send_IPI_mask(const struct cpumask *mask, int vector)
+{
+ default_send_IPI_mask_sequence_phys(mask, vector);
+}
+
+static inline void bigsmp_send_IPI_allbutself(int vector)
+{
+ default_send_IPI_mask_allbutself_phys(cpu_online_mask, vector);
+}
+
+static inline void bigsmp_send_IPI_all(int vector)
+{
+ bigsmp_send_IPI_mask(cpu_online_mask, vector);
+}
+
+static int dmi_bigsmp; /* can be set by dmi scanners */
+
+static int hp_ht_bigsmp(const struct dmi_system_id *d)
+{
+ printk(KERN_NOTICE "%s detected: force use of apic=bigsmp\n", d->ident);
+ dmi_bigsmp = 1;
+
+ return 0;
+}
+
+
+static const struct dmi_system_id bigsmp_dmi_table[] = {
+ { hp_ht_bigsmp, "HP ProLiant DL760 G2",
+ { DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
+ DMI_MATCH(DMI_BIOS_VERSION, "P44-"),
+ }
+ },
+
+ { hp_ht_bigsmp, "HP ProLiant DL740",
+ { DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
+ DMI_MATCH(DMI_BIOS_VERSION, "P47-"),
+ }
+ },
+ { } /* NULL entry stops DMI scanning */
+};
+
+static void bigsmp_vector_allocation_domain(int cpu, cpumask_t *retmask)
+{
+ cpus_clear(*retmask);
+ cpu_set(cpu, *retmask);
+}
+
+static int probe_bigsmp(void)
+{
+ if (def_to_bigsmp)
+ dmi_bigsmp = 1;
+ else
+ dmi_check_system(bigsmp_dmi_table);
+
+ return dmi_bigsmp;
+}
+
+struct apic apic_bigsmp = {
+
+ .name = "bigsmp",
+ .probe = probe_bigsmp,
+ .acpi_madt_oem_check = NULL,
+ .apic_id_registered = bigsmp_apic_id_registered,
+
+ .irq_delivery_mode = dest_Fixed,
+ /* phys delivery to target CPU: */
+ .irq_dest_mode = 0,
+
+ .target_cpus = bigsmp_target_cpus,
+ .disable_esr = 1,
+ .dest_logical = 0,
+ .check_apicid_used = bigsmp_check_apicid_used,
+ .check_apicid_present = bigsmp_check_apicid_present,
+
+ .vector_allocation_domain = bigsmp_vector_allocation_domain,
+ .init_apic_ldr = bigsmp_init_apic_ldr,
+
+ .ioapic_phys_id_map = bigsmp_ioapic_phys_id_map,
+ .setup_apic_routing = bigsmp_setup_apic_routing,
+ .multi_timer_check = NULL,
+ .apicid_to_node = bigsmp_apicid_to_node,
+ .cpu_to_logical_apicid = bigsmp_cpu_to_logical_apicid,
+ .cpu_present_to_apicid = bigsmp_cpu_present_to_apicid,
+ .apicid_to_cpu_present = bigsmp_apicid_to_cpu_present,
+ .setup_portio_remap = NULL,
+ .check_phys_apicid_present = bigsmp_check_phys_apicid_present,
+ .enable_apic_mode = NULL,
+ .phys_pkg_id = bigsmp_phys_pkg_id,
+ .mps_oem_check = NULL,
+
+ .get_apic_id = bigsmp_get_apic_id,
+ .set_apic_id = NULL,
+ .apic_id_mask = 0xFF << 24,
+
+ .cpu_mask_to_apicid = bigsmp_cpu_mask_to_apicid,
+ .cpu_mask_to_apicid_and = bigsmp_cpu_mask_to_apicid_and,
+
+ .send_IPI_mask = bigsmp_send_IPI_mask,
+ .send_IPI_mask_allbutself = NULL,
+ .send_IPI_allbutself = bigsmp_send_IPI_allbutself,
+ .send_IPI_all = bigsmp_send_IPI_all,
+ .send_IPI_self = default_send_IPI_self,
+
+ .wakeup_cpu = NULL,
+ .trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW,
+ .trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH,
+
+ .wait_for_init_deassert = default_wait_for_init_deassert,
+
+ .smp_callin_clear_local_apic = NULL,
+ .inquire_remote_apic = default_inquire_remote_apic,
+
+ .read = native_apic_mem_read,
+ .write = native_apic_mem_write,
+ .icr_read = native_apic_icr_read,
+ .icr_write = native_apic_icr_write,
+ .wait_icr_idle = native_apic_wait_icr_idle,
+ .safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
+};
--- /dev/null
+/*
+ * 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.
+ * Copyright (C) 2009, Red Hat, Inc., Ingo Molnar
+ *
+ * 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/notifier.h>
+#include <linux/spinlock.h>
+#include <linux/cpumask.h>
+#include <linux/threads.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/reboot.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/acpi.h>
+#include <linux/init.h>
+#include <linux/nmi.h>
+#include <linux/smp.h>
+#include <linux/io.h>
+
+#include <asm/apicdef.h>
+#include <asm/atomic.h>
+#include <asm/fixmap.h>
+#include <asm/mpspec.h>
+#include <asm/setup.h>
+#include <asm/apic.h>
+#include <asm/ipi.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_SW_APIC 0x1020b
+
+#define MIP_PORT(val) ((val >> 32) & 0xffff)
+
+#define MIP_RD_LO(val) (val & 0xffffffff)
+
+struct mip_reg {
+ unsigned long long off_0x00;
+ unsigned long long off_0x08;
+ unsigned long long off_0x10;
+ unsigned long long off_0x18;
+ unsigned long long off_0x20;
+ unsigned long long off_0x28;
+ unsigned long long off_0x30;
+ unsigned long long off_0x38;
+};
+
+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 psai {
+ unsigned long long entry_type;
+ unsigned long long addr;
+ unsigned long long bep_addr;
+};
+
+#ifdef CONFIG_ACPI
+
+struct es7000_oem_table {
+ struct acpi_table_header Header;
+ u32 OEMTableAddr;
+ u32 OEMTableSize;
+};
+
+static unsigned long oem_addrX;
+static unsigned long oem_size;
+
+#endif
+
+/*
+ * ES7000 Globals
+ */
+
+static volatile unsigned long *psai;
+static struct mip_reg *mip_reg;
+static struct mip_reg *host_reg;
+static int mip_port;
+static unsigned long mip_addr;
+static unsigned long 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 int __init es7000_update_apic(void)
+{
+ apic->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_apic_to_cluster();
+ apic->wait_for_init_deassert = NULL;
+ apic->wakeup_cpu = wakeup_secondary_cpu_via_mip;
+ }
+
+ return 0;
+}
+
+static 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_apic = es7000_update_apic;
+}
+
+/*
+ * Parse the OEM Table:
+ */
+static 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 int __init find_unisys_acpi_oem_table(unsigned long *oem_addr)
+{
+ struct acpi_table_header *header = NULL;
+ struct es7000_oem_table *table;
+ acpi_size tbl_size;
+ acpi_status ret;
+ int i = 0;
+
+ for (;;) {
+ ret = acpi_get_table_with_size("OEM1", i++, &header, &tbl_size);
+ if (!ACPI_SUCCESS(ret))
+ return -1;
+
+ if (!memcmp((char *) &header->oem_id, "UNISYS", 6))
+ break;
+
+ early_acpi_os_unmap_memory(header, tbl_size);
+ }
+
+ table = (void *)header;
+
+ oem_addrX = table->OEMTableAddr;
+ oem_size = table->OEMTableSize;
+
+ early_acpi_os_unmap_memory(header, tbl_size);
+
+ *oem_addr = (unsigned long)__acpi_map_table(oem_addrX, oem_size);
+
+ return 0;
+}
+
+static void __init unmap_unisys_acpi_oem_table(unsigned long oem_addr)
+{
+ if (!oem_addr)
+ return;
+
+ __acpi_unmap_table((char *)oem_addr, oem_size);
+}
+
+static int es7000_check_dsdt(void)
+{
+ struct acpi_table_header header;
+
+ if (ACPI_SUCCESS(acpi_get_table_header(ACPI_SIG_DSDT, 0, &header)) &&
+ !strncmp(header.oem_id, "UNISYS", 6))
+ return 1;
+ return 0;
+}
+
+/* Hook from generic ACPI tables.c */
+static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+ unsigned long oem_addr = 0;
+ int check_dsdt;
+ int ret = 0;
+
+ /* check dsdt at first to avoid clear fix_map for oem_addr */
+ check_dsdt = es7000_check_dsdt();
+
+ if (!find_unisys_acpi_oem_table(&oem_addr)) {
+ if (check_dsdt) {
+ ret = parse_unisys_oem((char *)oem_addr);
+ } else {
+ setup_unisys();
+ ret = 1;
+ }
+ /*
+ * we need to unmap it
+ */
+ unmap_unisys_acpi_oem_table(oem_addr);
+ }
+ return ret;
+}
+#else /* !CONFIG_ACPI: */
+static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+ return 0;
+}
+#endif /* !CONFIG_ACPI */
+
+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 ((host_reg->off_0x38 & MIP_VALID) != 0) {
+ if (--spin <= 0) {
+ WARN(1, "Timeout waiting for Host Valid Flag\n");
+ return -1;
+ }
+ es7000_spin(MIP_SPIN);
+ }
+
+ memcpy(host_reg, mip_reg, sizeof(struct mip_reg));
+ outb(1, mip_port);
+
+ spin = MIP_SPIN;
+
+ while ((mip_reg->off_0x38 & MIP_VALID) == 0) {
+ if (--spin <= 0) {
+ WARN(1, "Timeout waiting for MIP Valid Flag\n");
+ return -1;
+ }
+ es7000_spin(MIP_SPIN);
+ }
+
+ status = (mip_reg->off_0x00 & 0xffff0000000000ULL) >> 48;
+ mip_reg->off_0x38 &= ~MIP_VALID;
+
+ return status;
+}
+
+static void __init es7000_enable_apic_mode(void)
+{
+ struct mip_reg es7000_mip_reg;
+ int mip_status;
+
+ if (!es7000_plat)
+ return;
+
+ printk(KERN_INFO "ES7000: Enabling APIC mode.\n");
+ memset(&es7000_mip_reg, 0, sizeof(struct mip_reg));
+ es7000_mip_reg.off_0x00 = MIP_SW_APIC;
+ es7000_mip_reg.off_0x38 = MIP_VALID;
+
+ while ((mip_status = es7000_mip_write(&es7000_mip_reg)) != 0)
+ WARN(1, "Command failed, status = %x\n", mip_status);
+}
+
+static void es7000_vector_allocation_domain(int cpu, cpumask_t *retmask)
+{
+ /* Careful. Some cpus do not strictly honor the set of cpus
+ * specified in the interrupt destination when using lowest
+ * priority interrupt delivery mode.
+ *
+ * In particular there was a hyperthreading cpu observed to
+ * deliver interrupts to the wrong hyperthread when only one
+ * hyperthread was specified in the interrupt desitination.
+ */
+ *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } };
+}
+
+
+static void es7000_wait_for_init_deassert(atomic_t *deassert)
+{
+#ifndef CONFIG_ES7000_CLUSTERED_APIC
+ while (!atomic_read(deassert))
+ cpu_relax();
+#endif
+ return;
+}
+
+static unsigned int es7000_get_apic_id(unsigned long x)
+{
+ return (x >> 24) & 0xFF;
+}
+
+static void es7000_send_IPI_mask(const struct cpumask *mask, int vector)
+{
+ default_send_IPI_mask_sequence_phys(mask, vector);
+}
+
+static void es7000_send_IPI_allbutself(int vector)
+{
+ default_send_IPI_mask_allbutself_phys(cpu_online_mask, vector);
+}
+
+static void es7000_send_IPI_all(int vector)
+{
+ es7000_send_IPI_mask(cpu_online_mask, vector);
+}
+
+static int es7000_apic_id_registered(void)
+{
+ return 1;
+}
+
+static const cpumask_t *target_cpus_cluster(void)
+{
+ return &CPU_MASK_ALL;
+}
+
+static const cpumask_t *es7000_target_cpus(void)
+{
+ return &cpumask_of_cpu(smp_processor_id());
+}
+
+static unsigned long
+es7000_check_apicid_used(physid_mask_t bitmap, int apicid)
+{
+ return 0;
+}
+static unsigned long es7000_check_apicid_present(int bit)
+{
+ return physid_isset(bit, phys_cpu_present_map);
+}
+
+static unsigned long calculate_ldr(int cpu)
+{
+ unsigned long id = per_cpu(x86_bios_cpu_apicid, cpu);
+
+ return SET_APIC_LOGICAL_ID(id);
+}
+
+/*
+ * Set up the logical destination ID.
+ *
+ * Intel recommends to set DFR, LdR and TPR before enabling
+ * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel
+ * document number 292116). So here it goes...
+ */
+static void es7000_init_apic_ldr_cluster(void)
+{
+ unsigned long val;
+ int cpu = smp_processor_id();
+
+ apic_write(APIC_DFR, APIC_DFR_CLUSTER);
+ val = calculate_ldr(cpu);
+ apic_write(APIC_LDR, val);
+}
+
+static void es7000_init_apic_ldr(void)
+{
+ unsigned long val;
+ int cpu = smp_processor_id();
+
+ apic_write(APIC_DFR, APIC_DFR_FLAT);
+ val = calculate_ldr(cpu);
+ apic_write(APIC_LDR, val);
+}
+
+static void es7000_setup_apic_routing(void)
+{
+ int apic = per_cpu(x86_bios_cpu_apicid, smp_processor_id());
+
+ printk(KERN_INFO
+ "Enabling APIC mode: %s. Using %d I/O APICs, target cpus %lx\n",
+ (apic_version[apic] == 0x14) ?
+ "Physical Cluster" : "Logical Cluster",
+ nr_ioapics, cpus_addr(*es7000_target_cpus())[0]);
+}
+
+static int es7000_apicid_to_node(int logical_apicid)
+{
+ return 0;
+}
+
+
+static int es7000_cpu_present_to_apicid(int mps_cpu)
+{
+ if (!mps_cpu)
+ return boot_cpu_physical_apicid;
+ else if (mps_cpu < nr_cpu_ids)
+ return per_cpu(x86_bios_cpu_apicid, mps_cpu);
+ else
+ return BAD_APICID;
+}
+
+static int cpu_id;
+
+static physid_mask_t es7000_apicid_to_cpu_present(int phys_apicid)
+{
+ physid_mask_t mask;
+
+ mask = physid_mask_of_physid(cpu_id);
+ ++cpu_id;
+
+ return mask;
+}
+
+/* Mapping from cpu number to logical apicid */
+static int es7000_cpu_to_logical_apicid(int cpu)
+{
+#ifdef CONFIG_SMP
+ if (cpu >= nr_cpu_ids)
+ return BAD_APICID;
+ return cpu_2_logical_apicid[cpu];
+#else
+ return logical_smp_processor_id();
+#endif
+}
+
+static physid_mask_t es7000_ioapic_phys_id_map(physid_mask_t phys_map)
+{
+ /* For clustered we don't have a good way to do this yet - hack */
+ return physids_promote(0xff);
+}
+
+static int es7000_check_phys_apicid_present(int cpu_physical_apicid)
+{
+ boot_cpu_physical_apicid = read_apic_id();
+ return 1;
+}
+
+static unsigned int
+es7000_cpu_mask_to_apicid_cluster(const struct cpumask *cpumask)
+{
+ int cpus_found = 0;
+ int num_bits_set;
+ int apicid;
+ int cpu;
+
+ num_bits_set = cpumask_weight(cpumask);
+ /* Return id to all */
+ if (num_bits_set == nr_cpu_ids)
+ return 0xFF;
+ /*
+ * The cpus in the mask must all be on the apic cluster. If are not
+ * on the same apicid cluster return default value of target_cpus():
+ */
+ cpu = cpumask_first(cpumask);
+ apicid = es7000_cpu_to_logical_apicid(cpu);
+
+ while (cpus_found < num_bits_set) {
+ if (cpumask_test_cpu(cpu, cpumask)) {
+ int new_apicid = es7000_cpu_to_logical_apicid(cpu);
+
+ if (APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
+ WARN(1, "Not a valid mask!");
+
+ return 0xFF;
+ }
+ apicid = new_apicid;
+ cpus_found++;
+ }
+ cpu++;
+ }
+ return apicid;
+}
+
+static unsigned int es7000_cpu_mask_to_apicid(const cpumask_t *cpumask)
+{
+ int cpus_found = 0;
+ int num_bits_set;
+ int apicid;
+ int cpu;
+
+ num_bits_set = cpus_weight(*cpumask);
+ /* Return id to all */
+ if (num_bits_set == nr_cpu_ids)
+ return es7000_cpu_to_logical_apicid(0);
+ /*
+ * The cpus in the mask must all be on the apic cluster. If are not
+ * on the same apicid cluster return default value of target_cpus():
+ */
+ cpu = first_cpu(*cpumask);
+ apicid = es7000_cpu_to_logical_apicid(cpu);
+ while (cpus_found < num_bits_set) {
+ if (cpu_isset(cpu, *cpumask)) {
+ int new_apicid = es7000_cpu_to_logical_apicid(cpu);
+
+ if (APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
+ printk("%s: Not a valid mask!\n", __func__);
+
+ return es7000_cpu_to_logical_apicid(0);
+ }
+ apicid = new_apicid;
+ cpus_found++;
+ }
+ cpu++;
+ }
+ return apicid;
+}
+
+static unsigned int
+es7000_cpu_mask_to_apicid_and(const struct cpumask *inmask,
+ const struct cpumask *andmask)
+{
+ int apicid = es7000_cpu_to_logical_apicid(0);
+ cpumask_var_t cpumask;
+
+ if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC))
+ return apicid;
+
+ cpumask_and(cpumask, inmask, andmask);
+ cpumask_and(cpumask, cpumask, cpu_online_mask);
+ apicid = es7000_cpu_mask_to_apicid(cpumask);
+
+ free_cpumask_var(cpumask);
+
+ return apicid;
+}
+
+static int es7000_phys_pkg_id(int cpuid_apic, int index_msb)
+{
+ return cpuid_apic >> index_msb;
+}
+
+void __init es7000_update_apic_to_cluster(void)
+{
+ apic->target_cpus = target_cpus_cluster;
+ apic->irq_delivery_mode = dest_LowestPrio;
+ /* logical delivery broadcast to all procs: */
+ apic->irq_dest_mode = 1;
+
+ apic->init_apic_ldr = es7000_init_apic_ldr_cluster;
+
+ apic->cpu_mask_to_apicid = es7000_cpu_mask_to_apicid_cluster;
+}
+
+static int probe_es7000(void)
+{
+ /* probed later in mptable/ACPI hooks */
+ return 0;
+}
+
+static __init int
+es7000_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
+{
+ if (mpc->oemptr) {
+ struct mpc_oemtable *oem_table =
+ (struct mpc_oemtable *)mpc->oemptr;
+
+ if (!strncmp(oem, "UNISYS", 6))
+ return parse_unisys_oem((char *)oem_table);
+ }
+ return 0;
+}
+
+
+struct apic apic_es7000 = {
+
+ .name = "es7000",
+ .probe = probe_es7000,
+ .acpi_madt_oem_check = es7000_acpi_madt_oem_check,
+ .apic_id_registered = es7000_apic_id_registered,
+
+ .irq_delivery_mode = dest_Fixed,
+ /* phys delivery to target CPUs: */
+ .irq_dest_mode = 0,
+
+ .target_cpus = es7000_target_cpus,
+ .disable_esr = 1,
+ .dest_logical = 0,
+ .check_apicid_used = es7000_check_apicid_used,
+ .check_apicid_present = es7000_check_apicid_present,
+
+ .vector_allocation_domain = es7000_vector_allocation_domain,
+ .init_apic_ldr = es7000_init_apic_ldr,
+
+ .ioapic_phys_id_map = es7000_ioapic_phys_id_map,
+ .setup_apic_routing = es7000_setup_apic_routing,
+ .multi_timer_check = NULL,
+ .apicid_to_node = es7000_apicid_to_node,
+ .cpu_to_logical_apicid = es7000_cpu_to_logical_apicid,
+ .cpu_present_to_apicid = es7000_cpu_present_to_apicid,
+ .apicid_to_cpu_present = es7000_apicid_to_cpu_present,
+ .setup_portio_remap = NULL,
+ .check_phys_apicid_present = es7000_check_phys_apicid_present,
+ .enable_apic_mode = es7000_enable_apic_mode,
+ .phys_pkg_id = es7000_phys_pkg_id,
+ .mps_oem_check = es7000_mps_oem_check,
+
+ .get_apic_id = es7000_get_apic_id,
+ .set_apic_id = NULL,
+ .apic_id_mask = 0xFF << 24,
+
+ .cpu_mask_to_apicid = es7000_cpu_mask_to_apicid,
+ .cpu_mask_to_apicid_and = es7000_cpu_mask_to_apicid_and,
+
+ .send_IPI_mask = es7000_send_IPI_mask,
+ .send_IPI_mask_allbutself = NULL,
+ .send_IPI_allbutself = es7000_send_IPI_allbutself,
+ .send_IPI_all = es7000_send_IPI_all,
+ .send_IPI_self = default_send_IPI_self,
+
+ .wakeup_cpu = NULL,
+
+ .trampoline_phys_low = 0x467,
+ .trampoline_phys_high = 0x469,
+
+ .wait_for_init_deassert = es7000_wait_for_init_deassert,
+
+ /* Nothing to do for most platforms, since cleared by the INIT cycle: */
+ .smp_callin_clear_local_apic = NULL,
+ .inquire_remote_apic = default_inquire_remote_apic,
+
+ .read = native_apic_mem_read,
+ .write = native_apic_mem_write,
+ .icr_read = native_apic_icr_read,
+ .icr_write = native_apic_icr_write,
+ .wait_icr_idle = native_apic_wait_icr_idle,
+ .safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
+};
--- /dev/null
+/*
+ * Written by: Patricia Gaughen, IBM Corporation
+ *
+ * Copyright (C) 2002, IBM Corp.
+ * Copyright (C) 2009, Red Hat, Inc., Ingo Molnar
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Send feedback to <gone@us.ibm.com>
+ */
+#include <linux/nodemask.h>
+#include <linux/topology.h>
+#include <linux/bootmem.h>
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/kernel.h>
+#include <linux/mmzone.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/numa.h>
+#include <linux/smp.h>
+#include <linux/io.h>
+#include <linux/mm.h>
+
+#include <asm/processor.h>
+#include <asm/fixmap.h>
+#include <asm/mpspec.h>
+#include <asm/numaq.h>
+#include <asm/setup.h>
+#include <asm/apic.h>
+#include <asm/e820.h>
+#include <asm/ipi.h>
+
+#define MB_TO_PAGES(addr) ((addr) << (20 - PAGE_SHIFT))
+
+int found_numaq;
+
+/*
+ * Have to match translation table entries to main table entries by counter
+ * hence the mpc_record variable .... can't see a less disgusting way of
+ * doing this ....
+ */
+struct mpc_trans {
+ unsigned char mpc_type;
+ unsigned char trans_len;
+ unsigned char trans_type;
+ unsigned char trans_quad;
+ unsigned char trans_global;
+ unsigned char trans_local;
+ unsigned short trans_reserved;
+};
+
+/* x86_quirks member */
+static int mpc_record;
+
+static __cpuinitdata struct mpc_trans *translation_table[MAX_MPC_ENTRY];
+
+int mp_bus_id_to_node[MAX_MP_BUSSES];
+int mp_bus_id_to_local[MAX_MP_BUSSES];
+int quad_local_to_mp_bus_id[NR_CPUS/4][4];
+
+
+static inline void numaq_register_node(int node, struct sys_cfg_data *scd)
+{
+ struct eachquadmem *eq = scd->eq + node;
+
+ node_set_online(node);
+
+ /* Convert to pages */
+ node_start_pfn[node] =
+ MB_TO_PAGES(eq->hi_shrd_mem_start - eq->priv_mem_size);
+
+ node_end_pfn[node] =
+ MB_TO_PAGES(eq->hi_shrd_mem_start + eq->hi_shrd_mem_size);
+
+ e820_register_active_regions(node, node_start_pfn[node],
+ node_end_pfn[node]);
+
+ memory_present(node, node_start_pfn[node], node_end_pfn[node]);
+
+ node_remap_size[node] = node_memmap_size_bytes(node,
+ node_start_pfn[node],
+ node_end_pfn[node]);
+}
+
+/*
+ * Function: smp_dump_qct()
+ *
+ * Description: gets memory layout from the quad config table. This
+ * function also updates node_online_map with the nodes (quads) present.
+ */
+static void __init smp_dump_qct(void)
+{
+ struct sys_cfg_data *scd;
+ int node;
+
+ scd = (void *)__va(SYS_CFG_DATA_PRIV_ADDR);
+
+ nodes_clear(node_online_map);
+ for_each_node(node) {
+ if (scd->quads_present31_0 & (1 << node))
+ numaq_register_node(node, scd);
+ }
+}
+
+void __cpuinit numaq_tsc_disable(void)
+{
+ if (!found_numaq)
+ return;
+
+ if (num_online_nodes() > 1) {
+ printk(KERN_DEBUG "NUMAQ: disabling TSC\n");
+ setup_clear_cpu_cap(X86_FEATURE_TSC);
+ }
+}
+
+static int __init numaq_pre_time_init(void)
+{
+ numaq_tsc_disable();
+ return 0;
+}
+
+static inline int generate_logical_apicid(int quad, int phys_apicid)
+{
+ return (quad << 4) + (phys_apicid ? phys_apicid << 1 : 1);
+}
+
+/* x86_quirks member */
+static int mpc_apic_id(struct mpc_cpu *m)
+{
+ int quad = translation_table[mpc_record]->trans_quad;
+ int logical_apicid = generate_logical_apicid(quad, m->apicid);
+
+ printk(KERN_DEBUG
+ "Processor #%d %u:%u APIC version %d (quad %d, apic %d)\n",
+ m->apicid, (m->cpufeature & CPU_FAMILY_MASK) >> 8,
+ (m->cpufeature & CPU_MODEL_MASK) >> 4,
+ m->apicver, quad, logical_apicid);
+
+ return logical_apicid;
+}
+
+/* x86_quirks member */
+static void mpc_oem_bus_info(struct mpc_bus *m, char *name)
+{
+ int quad = translation_table[mpc_record]->trans_quad;
+ int local = translation_table[mpc_record]->trans_local;
+
+ mp_bus_id_to_node[m->busid] = quad;
+ mp_bus_id_to_local[m->busid] = local;
+
+ printk(KERN_INFO "Bus #%d is %s (node %d)\n", m->busid, name, quad);
+}
+
+/* x86_quirks member */
+static void mpc_oem_pci_bus(struct mpc_bus *m)
+{
+ int quad = translation_table[mpc_record]->trans_quad;
+ int local = translation_table[mpc_record]->trans_local;
+
+ quad_local_to_mp_bus_id[quad][local] = m->busid;
+}
+
+static void __init MP_translation_info(struct mpc_trans *m)
+{
+ printk(KERN_INFO
+ "Translation: record %d, type %d, quad %d, global %d, local %d\n",
+ mpc_record, m->trans_type, m->trans_quad, m->trans_global,
+ m->trans_local);
+
+ if (mpc_record >= MAX_MPC_ENTRY)
+ printk(KERN_ERR "MAX_MPC_ENTRY exceeded!\n");
+ else
+ translation_table[mpc_record] = m; /* stash this for later */
+
+ if (m->trans_quad < MAX_NUMNODES && !node_online(m->trans_quad))
+ node_set_online(m->trans_quad);
+}
+
+static int __init mpf_checksum(unsigned char *mp, int len)
+{
+ int sum = 0;
+
+ while (len--)
+ sum += *mp++;
+
+ return sum & 0xFF;
+}
+
+/*
+ * Read/parse the MPC oem tables
+ */
+static void __init
+ smp_read_mpc_oem(struct mpc_oemtable *oemtable, unsigned short oemsize)
+{
+ int count = sizeof(*oemtable); /* the header size */
+ unsigned char *oemptr = ((unsigned char *)oemtable) + count;
+
+ mpc_record = 0;
+ printk(KERN_INFO
+ "Found an OEM MPC table at %8p - parsing it ... \n", oemtable);
+
+ if (memcmp(oemtable->signature, MPC_OEM_SIGNATURE, 4)) {
+ printk(KERN_WARNING
+ "SMP mpc oemtable: bad signature [%c%c%c%c]!\n",
+ oemtable->signature[0], oemtable->signature[1],
+ oemtable->signature[2], oemtable->signature[3]);
+ return;
+ }
+
+ if (mpf_checksum((unsigned char *)oemtable, oemtable->length)) {
+ printk(KERN_WARNING "SMP oem mptable: checksum error!\n");
+ return;
+ }
+
+ while (count < oemtable->length) {
+ switch (*oemptr) {
+ case MP_TRANSLATION:
+ {
+ struct mpc_trans *m = (void *)oemptr;
+
+ MP_translation_info(m);
+ oemptr += sizeof(*m);
+ count += sizeof(*m);
+ ++mpc_record;
+ break;
+ }
+ default:
+ printk(KERN_WARNING
+ "Unrecognised OEM table entry type! - %d\n",
+ (int)*oemptr);
+ return;
+ }
+ }
+}
+
+static int __init numaq_setup_ioapic_ids(void)
+{
+ /* so can skip it */
+ return 1;
+}
+
+static int __init numaq_update_apic(void)
+{
+ apic->wakeup_cpu = wakeup_secondary_cpu_via_nmi;
+
+ return 0;
+}
+
+static struct x86_quirks numaq_x86_quirks __initdata = {
+ .arch_pre_time_init = numaq_pre_time_init,
+ .arch_time_init = NULL,
+ .arch_pre_intr_init = NULL,
+ .arch_memory_setup = NULL,
+ .arch_intr_init = NULL,
+ .arch_trap_init = NULL,
+ .mach_get_smp_config = NULL,
+ .mach_find_smp_config = NULL,
+ .mpc_record = &mpc_record,
+ .mpc_apic_id = mpc_apic_id,
+ .mpc_oem_bus_info = mpc_oem_bus_info,
+ .mpc_oem_pci_bus = mpc_oem_pci_bus,
+ .smp_read_mpc_oem = smp_read_mpc_oem,
+ .setup_ioapic_ids = numaq_setup_ioapic_ids,
+ .update_apic = numaq_update_apic,
+};
+
+static __init void early_check_numaq(void)
+{
+ /*
+ * Find possible boot-time SMP configuration:
+ */
+ early_find_smp_config();
+
+ /*
+ * get boot-time SMP configuration:
+ */
+ if (smp_found_config)
+ early_get_smp_config();
+
+ if (found_numaq)
+ x86_quirks = &numaq_x86_quirks;
+}
+
+int __init get_memcfg_numaq(void)
+{
+ early_check_numaq();
+ if (!found_numaq)
+ return 0;
+ smp_dump_qct();
+
+ return 1;
+}
+
+#define NUMAQ_APIC_DFR_VALUE (APIC_DFR_CLUSTER)
+
+static inline unsigned int numaq_get_apic_id(unsigned long x)
+{
+ return (x >> 24) & 0x0F;
+}
+
+static inline void numaq_send_IPI_mask(const struct cpumask *mask, int vector)
+{
+ default_send_IPI_mask_sequence_logical(mask, vector);
+}
+
+static inline void numaq_send_IPI_allbutself(int vector)
+{
+ default_send_IPI_mask_allbutself_logical(cpu_online_mask, vector);
+}
+
+static inline void numaq_send_IPI_all(int vector)
+{
+ numaq_send_IPI_mask(cpu_online_mask, vector);
+}
+
+#define NUMAQ_TRAMPOLINE_PHYS_LOW (0x8)
+#define NUMAQ_TRAMPOLINE_PHYS_HIGH (0xa)
+
+/*
+ * Because we use NMIs rather than the INIT-STARTUP sequence to
+ * bootstrap the CPUs, the APIC may be in a weird state. Kick it:
+ */
+static inline void numaq_smp_callin_clear_local_apic(void)
+{
+ clear_local_APIC();
+}
+
+static inline const cpumask_t *numaq_target_cpus(void)
+{
+ return &CPU_MASK_ALL;
+}
+
+static inline unsigned long
+numaq_check_apicid_used(physid_mask_t bitmap, int apicid)
+{
+ return physid_isset(apicid, bitmap);
+}
+
+static inline unsigned long numaq_check_apicid_present(int bit)
+{
+ return physid_isset(bit, phys_cpu_present_map);
+}
+
+static inline int numaq_apic_id_registered(void)
+{
+ return 1;
+}
+
+static inline void numaq_init_apic_ldr(void)
+{
+ /* Already done in NUMA-Q firmware */
+}
+
+static inline void numaq_setup_apic_routing(void)
+{
+ printk(KERN_INFO
+ "Enabling APIC mode: NUMA-Q. Using %d I/O APICs\n",
+ nr_ioapics);
+}
+
+/*
+ * Skip adding the timer int on secondary nodes, which causes
+ * a small but painful rift in the time-space continuum.
+ */
+static inline int numaq_multi_timer_check(int apic, int irq)
+{
+ return apic != 0 && irq == 0;
+}
+
+static inline physid_mask_t numaq_ioapic_phys_id_map(physid_mask_t phys_map)
+{
+ /* We don't have a good way to do this yet - hack */
+ return physids_promote(0xFUL);
+}
+
+static inline int numaq_cpu_to_logical_apicid(int cpu)
+{
+ if (cpu >= nr_cpu_ids)
+ return BAD_APICID;
+ return cpu_2_logical_apicid[cpu];
+}
+
+/*
+ * Supporting over 60 cpus on NUMA-Q requires a locality-dependent
+ * cpu to APIC ID relation to properly interact with the intelligent
+ * mode of the cluster controller.
+ */
+static inline int numaq_cpu_present_to_apicid(int mps_cpu)
+{
+ if (mps_cpu < 60)
+ return ((mps_cpu >> 2) << 4) | (1 << (mps_cpu & 0x3));
+ else
+ return BAD_APICID;
+}
+
+static inline int numaq_apicid_to_node(int logical_apicid)
+{
+ return logical_apicid >> 4;
+}
+
+static inline physid_mask_t numaq_apicid_to_cpu_present(int logical_apicid)
+{
+ int node = numaq_apicid_to_node(logical_apicid);
+ int cpu = __ffs(logical_apicid & 0xf);
+
+ return physid_mask_of_physid(cpu + 4*node);
+}
+
+/* Where the IO area was mapped on multiquad, always 0 otherwise */
+void *xquad_portio;
+
+static inline int numaq_check_phys_apicid_present(int boot_cpu_physical_apicid)
+{
+ return 1;
+}
+
+/*
+ * We use physical apicids here, not logical, so just return the default
+ * physical broadcast to stop people from breaking us
+ */
+static inline unsigned int numaq_cpu_mask_to_apicid(const cpumask_t *cpumask)
+{
+ return 0x0F;
+}
+
+static inline unsigned int
+numaq_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+ const struct cpumask *andmask)
+{
+ return 0x0F;
+}
+
+/* No NUMA-Q box has a HT CPU, but it can't hurt to use the default code. */
+static inline int numaq_phys_pkg_id(int cpuid_apic, int index_msb)
+{
+ return cpuid_apic >> index_msb;
+}
+
+static int
+numaq_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
+{
+ if (strncmp(oem, "IBM NUMA", 8))
+ printk(KERN_ERR "Warning! Not a NUMA-Q system!\n");
+ else
+ found_numaq = 1;
+
+ return found_numaq;
+}
+
+static int probe_numaq(void)
+{
+ /* already know from get_memcfg_numaq() */
+ return found_numaq;
+}
+
+static void numaq_vector_allocation_domain(int cpu, cpumask_t *retmask)
+{
+ /* Careful. Some cpus do not strictly honor the set of cpus
+ * specified in the interrupt destination when using lowest
+ * priority interrupt delivery mode.
+ *
+ * In particular there was a hyperthreading cpu observed to
+ * deliver interrupts to the wrong hyperthread when only one
+ * hyperthread was specified in the interrupt desitination.
+ */
+ *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } };
+}
+
+static void numaq_setup_portio_remap(void)
+{
+ int num_quads = num_online_nodes();
+
+ if (num_quads <= 1)
+ return;
+
+ printk(KERN_INFO
+ "Remapping cross-quad port I/O for %d quads\n", num_quads);
+
+ xquad_portio = ioremap(XQUAD_PORTIO_BASE, num_quads*XQUAD_PORTIO_QUAD);
+
+ printk(KERN_INFO
+ "xquad_portio vaddr 0x%08lx, len %08lx\n",
+ (u_long) xquad_portio, (u_long) num_quads*XQUAD_PORTIO_QUAD);
+}
+
+struct apic apic_numaq = {
+
+ .name = "NUMAQ",
+ .probe = probe_numaq,
+ .acpi_madt_oem_check = NULL,
+ .apic_id_registered = numaq_apic_id_registered,
+
+ .irq_delivery_mode = dest_LowestPrio,
+ /* physical delivery on LOCAL quad: */
+ .irq_dest_mode = 0,
+
+ .target_cpus = numaq_target_cpus,
+ .disable_esr = 1,
+ .dest_logical = APIC_DEST_LOGICAL,
+ .check_apicid_used = numaq_check_apicid_used,
+ .check_apicid_present = numaq_check_apicid_present,
+
+ .vector_allocation_domain = numaq_vector_allocation_domain,
+ .init_apic_ldr = numaq_init_apic_ldr,
+
+ .ioapic_phys_id_map = numaq_ioapic_phys_id_map,
+ .setup_apic_routing = numaq_setup_apic_routing,
+ .multi_timer_check = numaq_multi_timer_check,
+ .apicid_to_node = numaq_apicid_to_node,
+ .cpu_to_logical_apicid = numaq_cpu_to_logical_apicid,
+ .cpu_present_to_apicid = numaq_cpu_present_to_apicid,
+ .apicid_to_cpu_present = numaq_apicid_to_cpu_present,
+ .setup_portio_remap = numaq_setup_portio_remap,
+ .check_phys_apicid_present = numaq_check_phys_apicid_present,
+ .enable_apic_mode = NULL,
+ .phys_pkg_id = numaq_phys_pkg_id,
+ .mps_oem_check = numaq_mps_oem_check,
+
+ .get_apic_id = numaq_get_apic_id,
+ .set_apic_id = NULL,
+ .apic_id_mask = 0x0F << 24,
+
+ .cpu_mask_to_apicid = numaq_cpu_mask_to_apicid,
+ .cpu_mask_to_apicid_and = numaq_cpu_mask_to_apicid_and,
+
+ .send_IPI_mask = numaq_send_IPI_mask,
+ .send_IPI_mask_allbutself = NULL,
+ .send_IPI_allbutself = numaq_send_IPI_allbutself,
+ .send_IPI_all = numaq_send_IPI_all,
+ .send_IPI_self = default_send_IPI_self,
+
+ .wakeup_cpu = NULL,
+ .trampoline_phys_low = NUMAQ_TRAMPOLINE_PHYS_LOW,
+ .trampoline_phys_high = NUMAQ_TRAMPOLINE_PHYS_HIGH,
+
+ /* We don't do anything here because we use NMI's to boot instead */
+ .wait_for_init_deassert = NULL,
+
+ .smp_callin_clear_local_apic = numaq_smp_callin_clear_local_apic,
+ .inquire_remote_apic = NULL,
+
+ .read = native_apic_mem_read,
+ .write = native_apic_mem_write,
+ .icr_read = native_apic_icr_read,
+ .icr_write = native_apic_icr_write,
+ .wait_icr_idle = native_apic_wait_icr_idle,
+ .safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
+};
--- /dev/null
+/*
+ * Default generic APIC driver. This handles up to 8 CPUs.
+ *
+ * Copyright 2003 Andi Kleen, SuSE Labs.
+ * Subject to the GNU Public License, v.2
+ *
+ * Generic x86 APIC driver probe layer.
+ */
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/ctype.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <asm/fixmap.h>
+#include <asm/mpspec.h>
+#include <asm/apicdef.h>
+#include <asm/apic.h>
+#include <asm/setup.h>
+
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <asm/mpspec.h>
+#include <asm/fixmap.h>
+#include <asm/apicdef.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/smp.h>
+#include <linux/init.h>
+#include <asm/ipi.h>
+
+#include <linux/smp.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/acpi.h>
+#include <asm/arch_hooks.h>
+#include <asm/e820.h>
+#include <asm/setup.h>
+
+#ifdef CONFIG_HOTPLUG_CPU
+#define DEFAULT_SEND_IPI (1)
+#else
+#define DEFAULT_SEND_IPI (0)
+#endif
+
+int no_broadcast = DEFAULT_SEND_IPI;
+
+#ifdef CONFIG_X86_LOCAL_APIC
+
+void default_setup_apic_routing(void)
+{
+#ifdef CONFIG_X86_IO_APIC
+ printk(KERN_INFO
+ "Enabling APIC mode: Flat. Using %d I/O APICs\n",
+ nr_ioapics);
+#endif
+}
+
+static void default_vector_allocation_domain(int cpu, struct cpumask *retmask)
+{
+ /*
+ * Careful. Some cpus do not strictly honor the set of cpus
+ * specified in the interrupt destination when using lowest
+ * priority interrupt delivery mode.
+ *
+ * In particular there was a hyperthreading cpu observed to
+ * deliver interrupts to the wrong hyperthread when only one
+ * hyperthread was specified in the interrupt desitination.
+ */
+ *retmask = (cpumask_t) { { [0] = APIC_ALL_CPUS } };
+}
+
+/* should be called last. */
+static int probe_default(void)
+{
+ return 1;
+}
+
+struct apic apic_default = {
+
+ .name = "default",
+ .probe = probe_default,
+ .acpi_madt_oem_check = NULL,
+ .apic_id_registered = default_apic_id_registered,
+
+ .irq_delivery_mode = dest_LowestPrio,
+ /* logical delivery broadcast to all CPUs: */
+ .irq_dest_mode = 1,
+
+ .target_cpus = default_target_cpus,
+ .disable_esr = 0,
+ .dest_logical = APIC_DEST_LOGICAL,
+ .check_apicid_used = default_check_apicid_used,
+ .check_apicid_present = default_check_apicid_present,
+
+ .vector_allocation_domain = default_vector_allocation_domain,
+ .init_apic_ldr = default_init_apic_ldr,
+
+ .ioapic_phys_id_map = default_ioapic_phys_id_map,
+ .setup_apic_routing = default_setup_apic_routing,
+ .multi_timer_check = NULL,
+ .apicid_to_node = default_apicid_to_node,
+ .cpu_to_logical_apicid = default_cpu_to_logical_apicid,
+ .cpu_present_to_apicid = default_cpu_present_to_apicid,
+ .apicid_to_cpu_present = default_apicid_to_cpu_present,
+ .setup_portio_remap = NULL,
+ .check_phys_apicid_present = default_check_phys_apicid_present,
+ .enable_apic_mode = NULL,
+ .phys_pkg_id = default_phys_pkg_id,
+ .mps_oem_check = NULL,
+
+ .get_apic_id = default_get_apic_id,
+ .set_apic_id = NULL,
+ .apic_id_mask = 0x0F << 24,
+
+ .cpu_mask_to_apicid = default_cpu_mask_to_apicid,
+ .cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
+
+ .send_IPI_mask = default_send_IPI_mask_logical,
+ .send_IPI_mask_allbutself = default_send_IPI_mask_allbutself_logical,
+ .send_IPI_allbutself = default_send_IPI_allbutself,
+ .send_IPI_all = default_send_IPI_all,
+ .send_IPI_self = default_send_IPI_self,
+
+ .wakeup_cpu = NULL,
+ .trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW,
+ .trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH,
+
+ .wait_for_init_deassert = default_wait_for_init_deassert,
+
+ .smp_callin_clear_local_apic = NULL,
+ .inquire_remote_apic = default_inquire_remote_apic,
+
+ .read = native_apic_mem_read,
+ .write = native_apic_mem_write,
+ .icr_read = native_apic_icr_read,
+ .icr_write = native_apic_icr_write,
+ .wait_icr_idle = native_apic_wait_icr_idle,
+ .safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
+};
+
+extern struct apic apic_numaq;
+extern struct apic apic_summit;
+extern struct apic apic_bigsmp;
+extern struct apic apic_es7000;
+extern struct apic apic_default;
+
+struct apic *apic = &apic_default;
+EXPORT_SYMBOL_GPL(apic);
+
+static struct apic *apic_probe[] __initdata = {
+#ifdef CONFIG_X86_NUMAQ
+ &apic_numaq,
+#endif
+#ifdef CONFIG_X86_SUMMIT
+ &apic_summit,
+#endif
+#ifdef CONFIG_X86_BIGSMP
+ &apic_bigsmp,
+#endif
+#ifdef CONFIG_X86_ES7000
+ &apic_es7000,
+#endif
+ &apic_default, /* must be last */
+ NULL,
+};
+
+static int cmdline_apic __initdata;
+static int __init parse_apic(char *arg)
+{
+ int i;
+
+ if (!arg)
+ return -EINVAL;
+
+ for (i = 0; apic_probe[i]; i++) {
+ if (!strcmp(apic_probe[i]->name, arg)) {
+ apic = apic_probe[i];
+ cmdline_apic = 1;
+ return 0;
+ }
+ }
+
+ if (x86_quirks->update_apic)
+ x86_quirks->update_apic();
+
+ /* Parsed again by __setup for debug/verbose */
+ return 0;
+}
+early_param("apic", parse_apic);
+
+void __init generic_bigsmp_probe(void)
+{
+#ifdef CONFIG_X86_BIGSMP
+ /*
+ * This routine is used to switch to bigsmp mode when
+ * - There is no apic= option specified by the user
+ * - generic_apic_probe() has chosen apic_default as the sub_arch
+ * - we find more than 8 CPUs in acpi LAPIC listing with xAPIC support
+ */
+
+ if (!cmdline_apic && apic == &apic_default) {
+ if (apic_bigsmp.probe()) {
+ apic = &apic_bigsmp;
+ if (x86_quirks->update_apic)
+ x86_quirks->update_apic();
+ printk(KERN_INFO "Overriding APIC driver with %s\n",
+ apic->name);
+ }
+ }
+#endif
+}
+
+void __init generic_apic_probe(void)
+{
+ if (!cmdline_apic) {
+ int i;
+ for (i = 0; apic_probe[i]; i++) {
+ if (apic_probe[i]->probe()) {
+ apic = apic_probe[i];
+ break;
+ }
+ }
+ /* Not visible without early console */
+ if (!apic_probe[i])
+ panic("Didn't find an APIC driver");
+
+ if (x86_quirks->update_apic)
+ x86_quirks->update_apic();
+ }
+ printk(KERN_INFO "Using APIC driver %s\n", apic->name);
+}
+
+/* These functions can switch the APIC even after the initial ->probe() */
+
+int __init
+generic_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
+{
+ int i;
+
+ for (i = 0; apic_probe[i]; ++i) {
+ if (!apic_probe[i]->mps_oem_check)
+ continue;
+ if (!apic_probe[i]->mps_oem_check(mpc, oem, productid))
+ continue;
+
+ if (!cmdline_apic) {
+ apic = apic_probe[i];
+ if (x86_quirks->update_apic)
+ x86_quirks->update_apic();
+ printk(KERN_INFO "Switched to APIC driver `%s'.\n",
+ apic->name);
+ }
+ return 1;
+ }
+ return 0;
+}
+
+int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+ int i;
+
+ for (i = 0; apic_probe[i]; ++i) {
+ if (!apic_probe[i]->acpi_madt_oem_check)
+ continue;
+ if (!apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id))
+ continue;
+
+ if (!cmdline_apic) {
+ apic = apic_probe[i];
+ if (x86_quirks->update_apic)
+ x86_quirks->update_apic();
+ printk(KERN_INFO "Switched to APIC driver `%s'.\n",
+ apic->name);
+ }
+ return 1;
+ }
+ return 0;
+}
+
+#endif /* CONFIG_X86_LOCAL_APIC */
+
+/**
+ * pre_intr_init_hook - initialisation prior to setting up interrupt vectors
+ *
+ * Description:
+ * Perform any necessary interrupt initialisation prior to setting up
+ * the "ordinary" interrupt call gates. For legacy reasons, the ISA
+ * interrupts should be initialised here if the machine emulates a PC
+ * in any way.
+ **/
+void __init pre_intr_init_hook(void)
+{
+ if (x86_quirks->arch_pre_intr_init) {
+ if (x86_quirks->arch_pre_intr_init())
+ return;
+ }
+ init_ISA_irqs();
+}
+
+/**
+ * intr_init_hook - post gate setup interrupt initialisation
+ *
+ * Description:
+ * Fill in any interrupts that may have been left out by the general
+ * init_IRQ() routine. interrupts having to do with the machine rather
+ * than the devices on the I/O bus (like APIC interrupts in intel MP
+ * systems) are started here.
+ **/
+void __init intr_init_hook(void)
+{
+ if (x86_quirks->arch_intr_init) {
+ if (x86_quirks->arch_intr_init())
+ return;
+ }
+}
+
+/**
+ * pre_setup_arch_hook - hook called prior to any setup_arch() execution
+ *
+ * Description:
+ * generally used to activate any machine specific identification
+ * routines that may be needed before setup_arch() runs. On Voyager
+ * this is used to get the board revision and type.
+ **/
+void __init pre_setup_arch_hook(void)
+{
+}
+
+/**
+ * trap_init_hook - initialise system specific traps
+ *
+ * Description:
+ * Called as the final act of trap_init(). Used in VISWS to initialise
+ * the various board specific APIC traps.
+ **/
+void __init trap_init_hook(void)
+{
+ if (x86_quirks->arch_trap_init) {
+ if (x86_quirks->arch_trap_init())
+ return;
+ }
+}
+
+static struct irqaction irq0 = {
+ .handler = timer_interrupt,
+ .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL,
+ .mask = CPU_MASK_NONE,
+ .name = "timer"
+};
+
+/**
+ * pre_time_init_hook - do any specific initialisations before.
+ *
+ **/
+void __init pre_time_init_hook(void)
+{
+ if (x86_quirks->arch_pre_time_init)
+ x86_quirks->arch_pre_time_init();
+}
+
+/**
+ * time_init_hook - do any specific initialisations for the system timer.
+ *
+ * Description:
+ * Must plug the system timer interrupt source at HZ into the IRQ listed
+ * in irq_vectors.h:TIMER_IRQ
+ **/
+void __init time_init_hook(void)
+{
+ if (x86_quirks->arch_time_init) {
+ /*
+ * A nonzero return code does not mean failure, it means
+ * that the architecture quirk does not want any
+ * generic (timer) setup to be performed after this:
+ */
+ if (x86_quirks->arch_time_init())
+ return;
+ }
+
+ irq0.mask = cpumask_of_cpu(0);
+ setup_irq(0, &irq0);
+}
+
+#ifdef CONFIG_MCA
+/**
+ * mca_nmi_hook - hook into MCA specific NMI chain
+ *
+ * Description:
+ * The MCA (Microchannel Architecture) has an NMI chain for NMI sources
+ * along the MCA bus. Use this to hook into that chain if you will need
+ * it.
+ **/
+void mca_nmi_hook(void)
+{
+ /*
+ * If I recall correctly, there's a whole bunch of other things that
+ * we can do to check for NMI problems, but that's all I know about
+ * at the moment.
+ */
+ pr_warning("NMI generated from unknown source!\n");
+}
+#endif
+
+static __init int no_ipi_broadcast(char *str)
+{
+ get_option(&str, &no_broadcast);
+ pr_info("Using %s mode\n",
+ no_broadcast ? "No IPI Broadcast" : "IPI Broadcast");
+ return 1;
+}
+__setup("no_ipi_broadcast=", no_ipi_broadcast);
+
+static int __init print_ipi_mode(void)
+{
+ pr_info("Using IPI %s mode\n",
+ no_broadcast ? "No-Shortcut" : "Shortcut");
+ return 0;
+}
+
+late_initcall(print_ipi_mode);
+
--- /dev/null
+/*
+ * Copyright 2004 James Cleverdon, IBM.
+ * Subject to the GNU Public License, v.2
+ *
+ * Generic APIC sub-arch probe layer.
+ *
+ * Hacked for x86-64 by James Cleverdon from i386 architecture code by
+ * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and
+ * James Cleverdon.
+ */
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/string.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/ctype.h>
+#include <linux/init.h>
+#include <linux/hardirq.h>
+#include <linux/dmar.h>
+
+#include <asm/smp.h>
+#include <asm/apic.h>
+#include <asm/ipi.h>
+#include <asm/setup.h>
+
+extern struct apic apic_flat;
+extern struct apic apic_physflat;
+extern struct apic apic_x2xpic_uv_x;
+extern struct apic apic_x2apic_phys;
+extern struct apic apic_x2apic_cluster;
+
+struct apic __read_mostly *apic = &apic_flat;
+EXPORT_SYMBOL_GPL(apic);
+
+static struct apic *apic_probe[] __initdata = {
+#ifdef CONFIG_X86_UV
+ &apic_x2apic_uv_x,
+#endif
+#ifdef CONFIG_X86_X2APIC
+ &apic_x2apic_phys,
+ &apic_x2apic_cluster,
+#endif
+ &apic_physflat,
+ NULL,
+};
+
+/*
+ * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode.
+ */
+void __init default_setup_apic_routing(void)
+{
+#ifdef CONFIG_X86_X2APIC
+ if (apic == &apic_x2apic_phys || apic == &apic_x2apic_cluster) {
+ if (!intr_remapping_enabled)
+ apic = &apic_flat;
+ }
+#endif
+
+ if (apic == &apic_flat) {
+ if (max_physical_apicid >= 8)
+ apic = &apic_physflat;
+ printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
+ }
+
+ if (x86_quirks->update_apic)
+ x86_quirks->update_apic();
+}
+
+/* Same for both flat and physical. */
+
+void apic_send_IPI_self(int vector)
+{
+ __default_send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL);
+}
+
+int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+ int i;
+
+ for (i = 0; apic_probe[i]; ++i) {
+ if (apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id)) {
+ apic = apic_probe[i];
+ printk(KERN_INFO "Setting APIC routing to %s.\n",
+ apic->name);
+ return 1;
+ }
+ }
+ return 0;
+}
--- /dev/null
+/*
+ * IBM Summit-Specific Code
+ *
+ * Written By: Matthew Dobson, IBM Corporation
+ *
+ * Copyright (c) 2003 IBM Corp.
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Send feedback to <colpatch@us.ibm.com>
+ *
+ */
+
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include <asm/bios_ebda.h>
+
+/*
+ * APIC driver for the IBM "Summit" chipset.
+ */
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <asm/mpspec.h>
+#include <asm/apic.h>
+#include <asm/smp.h>
+#include <asm/fixmap.h>
+#include <asm/apicdef.h>
+#include <asm/ipi.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/gfp.h>
+#include <linux/smp.h>
+
+static inline unsigned summit_get_apic_id(unsigned long x)
+{
+ return (x >> 24) & 0xFF;
+}
+
+static inline void summit_send_IPI_mask(const cpumask_t *mask, int vector)
+{
+ default_send_IPI_mask_sequence_logical(mask, vector);
+}
+
+static inline void summit_send_IPI_allbutself(int vector)
+{
+ cpumask_t mask = cpu_online_map;
+ cpu_clear(smp_processor_id(), mask);
+
+ if (!cpus_empty(mask))
+ summit_send_IPI_mask(&mask, vector);
+}
+
+static inline void summit_send_IPI_all(int vector)
+{
+ summit_send_IPI_mask(&cpu_online_map, vector);
+}
+
+#include <asm/tsc.h>
+
+extern int use_cyclone;
+
+#ifdef CONFIG_X86_SUMMIT_NUMA
+extern void setup_summit(void);
+#else
+#define setup_summit() {}
+#endif
+
+static inline int
+summit_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
+{
+ if (!strncmp(oem, "IBM ENSW", 8) &&
+ (!strncmp(productid, "VIGIL SMP", 9)
+ || !strncmp(productid, "EXA", 3)
+ || !strncmp(productid, "RUTHLESS SMP", 12))){
+ mark_tsc_unstable("Summit based system");
+ use_cyclone = 1; /*enable cyclone-timer*/
+ setup_summit();
+ return 1;
+ }
+ return 0;
+}
+
+/* Hook from generic ACPI tables.c */
+static inline int summit_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+ if (!strncmp(oem_id, "IBM", 3) &&
+ (!strncmp(oem_table_id, "SERVIGIL", 8)
+ || !strncmp(oem_table_id, "EXA", 3))){
+ mark_tsc_unstable("Summit based system");
+ use_cyclone = 1; /*enable cyclone-timer*/
+ setup_summit();
+ return 1;
+ }
+ return 0;
+}
+
+struct rio_table_hdr {
+ unsigned char version; /* Version number of this data structure */
+ /* Version 3 adds chassis_num & WP_index */
+ unsigned char num_scal_dev; /* # of Scalability devices (Twisters for Vigil) */
+ unsigned char num_rio_dev; /* # of RIO I/O devices (Cyclones and Winnipegs) */
+} __attribute__((packed));
+
+struct scal_detail {
+ unsigned char node_id; /* Scalability Node ID */
+ unsigned long CBAR; /* Address of 1MB register space */
+ unsigned char port0node; /* Node ID port connected to: 0xFF=None */
+ unsigned char port0port; /* Port num port connected to: 0,1,2, or 0xFF=None */
+ unsigned char port1node; /* Node ID port connected to: 0xFF = None */
+ unsigned char port1port; /* Port num port connected to: 0,1,2, or 0xFF=None */
+ unsigned char port2node; /* Node ID port connected to: 0xFF = None */
+ unsigned char port2port; /* Port num port connected to: 0,1,2, or 0xFF=None */
+ unsigned char chassis_num; /* 1 based Chassis number (1 = boot node) */
+} __attribute__((packed));
+
+struct rio_detail {
+ unsigned char node_id; /* RIO Node ID */
+ unsigned long BBAR; /* Address of 1MB register space */
+ unsigned char type; /* Type of device */
+ unsigned char owner_id; /* For WPEG: Node ID of Cyclone that owns this WPEG*/
+ /* For CYC: Node ID of Twister that owns this CYC */
+ unsigned char port0node; /* Node ID port connected to: 0xFF=None */
+ unsigned char port0port; /* Port num port connected to: 0,1,2, or 0xFF=None */
+ unsigned char port1node; /* Node ID port connected to: 0xFF=None */
+ unsigned char port1port; /* Port num port connected to: 0,1,2, or 0xFF=None */
+ unsigned char first_slot; /* For WPEG: Lowest slot number below this WPEG */
+ /* For CYC: 0 */
+ unsigned char status; /* For WPEG: Bit 0 = 1 : the XAPIC is used */
+ /* = 0 : the XAPIC is not used, ie:*/
+ /* ints fwded to another XAPIC */
+ /* Bits1:7 Reserved */
+ /* For CYC: Bits0:7 Reserved */
+ unsigned char WP_index; /* For WPEG: WPEG instance index - lower ones have */
+ /* lower slot numbers/PCI bus numbers */
+ /* For CYC: No meaning */
+ unsigned char chassis_num; /* 1 based Chassis number */
+ /* For LookOut WPEGs this field indicates the */
+ /* Expansion Chassis #, enumerated from Boot */
+ /* Node WPEG external port, then Boot Node CYC */
+ /* external port, then Next Vigil chassis WPEG */
+ /* external port, etc. */
+ /* Shared Lookouts have only 1 chassis number (the */
+ /* first one assigned) */
+} __attribute__((packed));
+
+
+typedef enum {
+ CompatTwister = 0, /* Compatibility Twister */
+ AltTwister = 1, /* Alternate Twister of internal 8-way */
+ CompatCyclone = 2, /* Compatibility Cyclone */
+ AltCyclone = 3, /* Alternate Cyclone of internal 8-way */
+ CompatWPEG = 4, /* Compatibility WPEG */
+ AltWPEG = 5, /* Second Planar WPEG */
+ LookOutAWPEG = 6, /* LookOut WPEG */
+ LookOutBWPEG = 7, /* LookOut WPEG */
+} node_type;
+
+static inline int is_WPEG(struct rio_detail *rio){
+ return (rio->type == CompatWPEG || rio->type == AltWPEG ||
+ rio->type == LookOutAWPEG || rio->type == LookOutBWPEG);
+}
+
+
+/* In clustered mode, the high nibble of APIC ID is a cluster number.
+ * The low nibble is a 4-bit bitmap. */
+#define XAPIC_DEST_CPUS_SHIFT 4
+#define XAPIC_DEST_CPUS_MASK ((1u << XAPIC_DEST_CPUS_SHIFT) - 1)
+#define XAPIC_DEST_CLUSTER_MASK (XAPIC_DEST_CPUS_MASK << XAPIC_DEST_CPUS_SHIFT)
+
+#define SUMMIT_APIC_DFR_VALUE (APIC_DFR_CLUSTER)
+
+static inline const cpumask_t *summit_target_cpus(void)
+{
+ /* CPU_MASK_ALL (0xff) has undefined behaviour with
+ * dest_LowestPrio mode logical clustered apic interrupt routing
+ * Just start on cpu 0. IRQ balancing will spread load
+ */
+ return &cpumask_of_cpu(0);
+}
+
+static inline unsigned long
+summit_check_apicid_used(physid_mask_t bitmap, int apicid)
+{
+ return 0;
+}
+
+/* we don't use the phys_cpu_present_map to indicate apicid presence */
+static inline unsigned long summit_check_apicid_present(int bit)
+{
+ return 1;
+}
+
+static inline void summit_init_apic_ldr(void)
+{
+ unsigned long val, id;
+ int count = 0;
+ u8 my_id = (u8)hard_smp_processor_id();
+ u8 my_cluster = APIC_CLUSTER(my_id);
+#ifdef CONFIG_SMP
+ u8 lid;
+ int i;
+
+ /* Create logical APIC IDs by counting CPUs already in cluster. */
+ for (count = 0, i = nr_cpu_ids; --i >= 0; ) {
+ lid = cpu_2_logical_apicid[i];
+ if (lid != BAD_APICID && APIC_CLUSTER(lid) == my_cluster)
+ ++count;
+ }
+#endif
+ /* We only have a 4 wide bitmap in cluster mode. If a deranged
+ * BIOS puts 5 CPUs in one APIC cluster, we're hosed. */
+ BUG_ON(count >= XAPIC_DEST_CPUS_SHIFT);
+ id = my_cluster | (1UL << count);
+ apic_write(APIC_DFR, SUMMIT_APIC_DFR_VALUE);
+ val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
+ val |= SET_APIC_LOGICAL_ID(id);
+ apic_write(APIC_LDR, val);
+}
+
+static inline int summit_apic_id_registered(void)
+{
+ return 1;
+}
+
+static inline void summit_setup_apic_routing(void)
+{
+ printk("Enabling APIC mode: Summit. Using %d I/O APICs\n",
+ nr_ioapics);
+}
+
+static inline int summit_apicid_to_node(int logical_apicid)
+{
+#ifdef CONFIG_SMP
+ return apicid_2_node[hard_smp_processor_id()];
+#else
+ return 0;
+#endif
+}
+
+/* Mapping from cpu number to logical apicid */
+static inline int summit_cpu_to_logical_apicid(int cpu)
+{
+#ifdef CONFIG_SMP
+ if (cpu >= nr_cpu_ids)
+ return BAD_APICID;
+ return cpu_2_logical_apicid[cpu];
+#else
+ return logical_smp_processor_id();
+#endif
+}
+
+static inline int summit_cpu_present_to_apicid(int mps_cpu)
+{
+ if (mps_cpu < nr_cpu_ids)
+ return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
+ else
+ return BAD_APICID;
+}
+
+static inline physid_mask_t
+summit_ioapic_phys_id_map(physid_mask_t phys_id_map)
+{
+ /* For clustered we don't have a good way to do this yet - hack */
+ return physids_promote(0x0F);
+}
+
+static inline physid_mask_t summit_apicid_to_cpu_present(int apicid)
+{
+ return physid_mask_of_physid(0);
+}
+
+static inline void summit_setup_portio_remap(void)
+{
+}
+
+static inline int summit_check_phys_apicid_present(int boot_cpu_physical_apicid)
+{
+ return 1;
+}
+
+static inline unsigned int summit_cpu_mask_to_apicid(const cpumask_t *cpumask)
+{
+ int cpus_found = 0;
+ int num_bits_set;
+ int apicid;
+ int cpu;
+
+ num_bits_set = cpus_weight(*cpumask);
+ /* Return id to all */
+ if (num_bits_set >= nr_cpu_ids)
+ return 0xFF;
+ /*
+ * The cpus in the mask must all be on the apic cluster. If are not
+ * on the same apicid cluster return default value of target_cpus():
+ */
+ cpu = first_cpu(*cpumask);
+ apicid = summit_cpu_to_logical_apicid(cpu);
+
+ while (cpus_found < num_bits_set) {
+ if (cpu_isset(cpu, *cpumask)) {
+ int new_apicid = summit_cpu_to_logical_apicid(cpu);
+
+ if (APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
+ printk ("%s: Not a valid mask!\n", __func__);
+
+ return 0xFF;
+ }
+ apicid = apicid | new_apicid;
+ cpus_found++;
+ }
+ cpu++;
+ }
+ return apicid;
+}
+
+static inline unsigned int
+summit_cpu_mask_to_apicid_and(const struct cpumask *inmask,
+ const struct cpumask *andmask)
+{
+ int apicid = summit_cpu_to_logical_apicid(0);
+ cpumask_var_t cpumask;
+
+ if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC))
+ return apicid;
+
+ cpumask_and(cpumask, inmask, andmask);
+ cpumask_and(cpumask, cpumask, cpu_online_mask);
+ apicid = summit_cpu_mask_to_apicid(cpumask);
+
+ free_cpumask_var(cpumask);
+
+ return apicid;
+}
+
+/*
+ * cpuid returns the value latched in the HW at reset, not the APIC ID
+ * register's value. For any box whose BIOS changes APIC IDs, like
+ * clustered APIC systems, we must use hard_smp_processor_id.
+ *
+ * See Intel's IA-32 SW Dev's Manual Vol2 under CPUID.
+ */
+static inline int summit_phys_pkg_id(int cpuid_apic, int index_msb)
+{
+ return hard_smp_processor_id() >> index_msb;
+}
+
+static int probe_summit(void)
+{
+ /* probed later in mptable/ACPI hooks */
+ return 0;
+}
+
+static void summit_vector_allocation_domain(int cpu, cpumask_t *retmask)
+{
+ /* Careful. Some cpus do not strictly honor the set of cpus
+ * specified in the interrupt destination when using lowest
+ * priority interrupt delivery mode.
+ *
+ * In particular there was a hyperthreading cpu observed to
+ * deliver interrupts to the wrong hyperthread when only one
+ * hyperthread was specified in the interrupt desitination.
+ */
+ *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } };
+}
+
+#ifdef CONFIG_X86_SUMMIT_NUMA
+static struct rio_table_hdr *rio_table_hdr __initdata;
+static struct scal_detail *scal_devs[MAX_NUMNODES] __initdata;
+static struct rio_detail *rio_devs[MAX_NUMNODES*4] __initdata;
+
+#ifndef CONFIG_X86_NUMAQ
+static int mp_bus_id_to_node[MAX_MP_BUSSES] __initdata;
+#endif
+
+static int __init setup_pci_node_map_for_wpeg(int wpeg_num, int last_bus)
+{
+ int twister = 0, node = 0;
+ int i, bus, num_buses;
+
+ for (i = 0; i < rio_table_hdr->num_rio_dev; i++) {
+ if (rio_devs[i]->node_id == rio_devs[wpeg_num]->owner_id) {
+ twister = rio_devs[i]->owner_id;
+ break;
+ }
+ }
+ if (i == rio_table_hdr->num_rio_dev) {
+ printk(KERN_ERR "%s: Couldn't find owner Cyclone for Winnipeg!\n", __func__);
+ return last_bus;
+ }
+
+ for (i = 0; i < rio_table_hdr->num_scal_dev; i++) {
+ if (scal_devs[i]->node_id == twister) {
+ node = scal_devs[i]->node_id;
+ break;
+ }
+ }
+ if (i == rio_table_hdr->num_scal_dev) {
+ printk(KERN_ERR "%s: Couldn't find owner Twister for Cyclone!\n", __func__);
+ return last_bus;
+ }
+
+ switch (rio_devs[wpeg_num]->type) {
+ case CompatWPEG:
+ /*
+ * The Compatibility Winnipeg controls the 2 legacy buses,
+ * the 66MHz PCI bus [2 slots] and the 2 "extra" buses in case
+ * a PCI-PCI bridge card is used in either slot: total 5 buses.
+ */
+ num_buses = 5;
+ break;
+ case AltWPEG:
+ /*
+ * The Alternate Winnipeg controls the 2 133MHz buses [1 slot
+ * each], their 2 "extra" buses, the 100MHz bus [2 slots] and
+ * the "extra" buses for each of those slots: total 7 buses.
+ */
+ num_buses = 7;
+ break;
+ case LookOutAWPEG:
+ case LookOutBWPEG:
+ /*
+ * A Lookout Winnipeg controls 3 100MHz buses [2 slots each]
+ * & the "extra" buses for each of those slots: total 9 buses.
+ */
+ num_buses = 9;
+ break;
+ default:
+ printk(KERN_INFO "%s: Unsupported Winnipeg type!\n", __func__);
+ return last_bus;
+ }
+
+ for (bus = last_bus; bus < last_bus + num_buses; bus++)
+ mp_bus_id_to_node[bus] = node;
+ return bus;
+}
+
+static int __init build_detail_arrays(void)
+{
+ unsigned long ptr;
+ int i, scal_detail_size, rio_detail_size;
+
+ if (rio_table_hdr->num_scal_dev > MAX_NUMNODES) {
+ printk(KERN_WARNING "%s: MAX_NUMNODES too low! Defined as %d, but system has %d nodes.\n", __func__, MAX_NUMNODES, rio_table_hdr->num_scal_dev);
+ return 0;
+ }
+
+ switch (rio_table_hdr->version) {
+ default:
+ printk(KERN_WARNING "%s: Invalid Rio Grande Table Version: %d\n", __func__, rio_table_hdr->version);
+ return 0;
+ case 2:
+ scal_detail_size = 11;
+ rio_detail_size = 13;
+ break;
+ case 3:
+ scal_detail_size = 12;
+ rio_detail_size = 15;
+ break;
+ }
+
+ ptr = (unsigned long)rio_table_hdr + 3;
+ for (i = 0; i < rio_table_hdr->num_scal_dev; i++, ptr += scal_detail_size)
+ scal_devs[i] = (struct scal_detail *)ptr;
+
+ for (i = 0; i < rio_table_hdr->num_rio_dev; i++, ptr += rio_detail_size)
+ rio_devs[i] = (struct rio_detail *)ptr;
+
+ return 1;
+}
+
+void __init setup_summit(void)
+{
+ unsigned long ptr;
+ unsigned short offset;
+ int i, next_wpeg, next_bus = 0;
+
+ /* The pointer to the EBDA is stored in the word @ phys 0x40E(40:0E) */
+ ptr = get_bios_ebda();
+ ptr = (unsigned long)phys_to_virt(ptr);
+
+ rio_table_hdr = NULL;
+ offset = 0x180;
+ while (offset) {
+ /* The block id is stored in the 2nd word */
+ if (*((unsigned short *)(ptr + offset + 2)) == 0x4752) {
+ /* set the pointer past the offset & block id */
+ rio_table_hdr = (struct rio_table_hdr *)(ptr + offset + 4);
+ break;
+ }
+ /* The next offset is stored in the 1st word. 0 means no more */
+ offset = *((unsigned short *)(ptr + offset));
+ }
+ if (!rio_table_hdr) {
+ printk(KERN_ERR "%s: Unable to locate Rio Grande Table in EBDA - bailing!\n", __func__);
+ return;
+ }
+
+ if (!build_detail_arrays())
+ return;
+
+ /* The first Winnipeg we're looking for has an index of 0 */
+ next_wpeg = 0;
+ do {
+ for (i = 0; i < rio_table_hdr->num_rio_dev; i++) {
+ if (is_WPEG(rio_devs[i]) && rio_devs[i]->WP_index == next_wpeg) {
+ /* It's the Winnipeg we're looking for! */
+ next_bus = setup_pci_node_map_for_wpeg(i, next_bus);
+ next_wpeg++;
+ break;
+ }
+ }
+ /*
+ * If we go through all Rio devices and don't find one with
+ * the next index, it means we've found all the Winnipegs,
+ * and thus all the PCI buses.
+ */
+ if (i == rio_table_hdr->num_rio_dev)
+ next_wpeg = 0;
+ } while (next_wpeg != 0);
+}
+#endif
+
+struct apic apic_summit = {
+
+ .name = "summit",
+ .probe = probe_summit,
+ .acpi_madt_oem_check = summit_acpi_madt_oem_check,
+ .apic_id_registered = summit_apic_id_registered,
+
+ .irq_delivery_mode = dest_LowestPrio,
+ /* logical delivery broadcast to all CPUs: */
+ .irq_dest_mode = 1,
+
+ .target_cpus = summit_target_cpus,
+ .disable_esr = 1,
+ .dest_logical = APIC_DEST_LOGICAL,
+ .check_apicid_used = summit_check_apicid_used,
+ .check_apicid_present = summit_check_apicid_present,
+
+ .vector_allocation_domain = summit_vector_allocation_domain,
+ .init_apic_ldr = summit_init_apic_ldr,
+
+ .ioapic_phys_id_map = summit_ioapic_phys_id_map,
+ .setup_apic_routing = summit_setup_apic_routing,
+ .multi_timer_check = NULL,
+ .apicid_to_node = summit_apicid_to_node,
+ .cpu_to_logical_apicid = summit_cpu_to_logical_apicid,
+ .cpu_present_to_apicid = summit_cpu_present_to_apicid,
+ .apicid_to_cpu_present = summit_apicid_to_cpu_present,
+ .setup_portio_remap = NULL,
+ .check_phys_apicid_present = summit_check_phys_apicid_present,
+ .enable_apic_mode = NULL,
+ .phys_pkg_id = summit_phys_pkg_id,
+ .mps_oem_check = summit_mps_oem_check,
+
+ .get_apic_id = summit_get_apic_id,
+ .set_apic_id = NULL,
+ .apic_id_mask = 0xFF << 24,
+
+ .cpu_mask_to_apicid = summit_cpu_mask_to_apicid,
+ .cpu_mask_to_apicid_and = summit_cpu_mask_to_apicid_and,
+
+ .send_IPI_mask = summit_send_IPI_mask,
+ .send_IPI_mask_allbutself = NULL,
+ .send_IPI_allbutself = summit_send_IPI_allbutself,
+ .send_IPI_all = summit_send_IPI_all,
+ .send_IPI_self = default_send_IPI_self,
+
+ .wakeup_cpu = NULL,
+ .trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW,
+ .trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH,
+
+ .wait_for_init_deassert = default_wait_for_init_deassert,
+
+ .smp_callin_clear_local_apic = NULL,
+ .inquire_remote_apic = default_inquire_remote_apic,
+
+ .read = native_apic_mem_read,
+ .write = native_apic_mem_write,
+ .icr_read = native_apic_icr_read,
+ .icr_write = native_apic_icr_write,
+ .wait_icr_idle = native_apic_wait_icr_idle,
+ .safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
+};
+++ /dev/null
-/*
- * APIC driver for "bigsmp" xAPIC machines with more than 8 virtual CPUs.
- *
- * Drives the local APIC in "clustered mode".
- */
-#include <linux/threads.h>
-#include <linux/cpumask.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/dmi.h>
-#include <linux/smp.h>
-
-#include <asm/apicdef.h>
-#include <asm/fixmap.h>
-#include <asm/mpspec.h>
-#include <asm/apic.h>
-#include <asm/ipi.h>
-
-static inline unsigned bigsmp_get_apic_id(unsigned long x)
-{
- return (x >> 24) & 0xFF;
-}
-
-static inline int bigsmp_apic_id_registered(void)
-{
- return 1;
-}
-
-static inline const cpumask_t *bigsmp_target_cpus(void)
-{
-#ifdef CONFIG_SMP
- return &cpu_online_map;
-#else
- return &cpumask_of_cpu(0);
-#endif
-}
-
-static inline unsigned long
-bigsmp_check_apicid_used(physid_mask_t bitmap, int apicid)
-{
- return 0;
-}
-
-static inline unsigned long bigsmp_check_apicid_present(int bit)
-{
- return 1;
-}
-
-static inline unsigned long calculate_ldr(int cpu)
-{
- unsigned long val, id;
-
- val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
- id = per_cpu(x86_bios_cpu_apicid, cpu);
- val |= SET_APIC_LOGICAL_ID(id);
-
- return val;
-}
-
-/*
- * Set up the logical destination ID.
- *
- * Intel recommends to set DFR, LDR and TPR before enabling
- * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel
- * document number 292116). So here it goes...
- */
-static inline void bigsmp_init_apic_ldr(void)
-{
- unsigned long val;
- int cpu = smp_processor_id();
-
- apic_write(APIC_DFR, APIC_DFR_FLAT);
- val = calculate_ldr(cpu);
- apic_write(APIC_LDR, val);
-}
-
-static inline void bigsmp_setup_apic_routing(void)
-{
- printk(KERN_INFO
- "Enabling APIC mode: Physflat. Using %d I/O APICs\n",
- nr_ioapics);
-}
-
-static inline int bigsmp_apicid_to_node(int logical_apicid)
-{
- return apicid_2_node[hard_smp_processor_id()];
-}
-
-static inline int bigsmp_cpu_present_to_apicid(int mps_cpu)
-{
- if (mps_cpu < nr_cpu_ids)
- return (int) per_cpu(x86_bios_cpu_apicid, mps_cpu);
-
- return BAD_APICID;
-}
-
-static inline physid_mask_t bigsmp_apicid_to_cpu_present(int phys_apicid)
-{
- return physid_mask_of_physid(phys_apicid);
-}
-
-/* Mapping from cpu number to logical apicid */
-static inline int bigsmp_cpu_to_logical_apicid(int cpu)
-{
- if (cpu >= nr_cpu_ids)
- return BAD_APICID;
- return cpu_physical_id(cpu);
-}
-
-static inline physid_mask_t bigsmp_ioapic_phys_id_map(physid_mask_t phys_map)
-{
- /* For clustered we don't have a good way to do this yet - hack */
- return physids_promote(0xFFL);
-}
-
-static inline void bigsmp_setup_portio_remap(void)
-{
-}
-
-static inline int bigsmp_check_phys_apicid_present(int boot_cpu_physical_apicid)
-{
- return 1;
-}
-
-/* As we are using single CPU as destination, pick only one CPU here */
-static inline unsigned int bigsmp_cpu_mask_to_apicid(const cpumask_t *cpumask)
-{
- return bigsmp_cpu_to_logical_apicid(first_cpu(*cpumask));
-}
-
-static inline unsigned int
-bigsmp_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
- const struct cpumask *andmask)
-{
- int cpu;
-
- /*
- * We're using fixed IRQ delivery, can only return one phys APIC ID.
- * May as well be the first.
- */
- for_each_cpu_and(cpu, cpumask, andmask) {
- if (cpumask_test_cpu(cpu, cpu_online_mask))
- break;
- }
- if (cpu < nr_cpu_ids)
- return bigsmp_cpu_to_logical_apicid(cpu);
-
- return BAD_APICID;
-}
-
-static inline int bigsmp_phys_pkg_id(int cpuid_apic, int index_msb)
-{
- return cpuid_apic >> index_msb;
-}
-
-static inline void bigsmp_send_IPI_mask(const struct cpumask *mask, int vector)
-{
- default_send_IPI_mask_sequence_phys(mask, vector);
-}
-
-static inline void bigsmp_send_IPI_allbutself(int vector)
-{
- default_send_IPI_mask_allbutself_phys(cpu_online_mask, vector);
-}
-
-static inline void bigsmp_send_IPI_all(int vector)
-{
- bigsmp_send_IPI_mask(cpu_online_mask, vector);
-}
-
-static int dmi_bigsmp; /* can be set by dmi scanners */
-
-static int hp_ht_bigsmp(const struct dmi_system_id *d)
-{
- printk(KERN_NOTICE "%s detected: force use of apic=bigsmp\n", d->ident);
- dmi_bigsmp = 1;
-
- return 0;
-}
-
-
-static const struct dmi_system_id bigsmp_dmi_table[] = {
- { hp_ht_bigsmp, "HP ProLiant DL760 G2",
- { DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
- DMI_MATCH(DMI_BIOS_VERSION, "P44-"),
- }
- },
-
- { hp_ht_bigsmp, "HP ProLiant DL740",
- { DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
- DMI_MATCH(DMI_BIOS_VERSION, "P47-"),
- }
- },
- { } /* NULL entry stops DMI scanning */
-};
-
-static void bigsmp_vector_allocation_domain(int cpu, cpumask_t *retmask)
-{
- cpus_clear(*retmask);
- cpu_set(cpu, *retmask);
-}
-
-static int probe_bigsmp(void)
-{
- if (def_to_bigsmp)
- dmi_bigsmp = 1;
- else
- dmi_check_system(bigsmp_dmi_table);
-
- return dmi_bigsmp;
-}
-
-struct apic apic_bigsmp = {
-
- .name = "bigsmp",
- .probe = probe_bigsmp,
- .acpi_madt_oem_check = NULL,
- .apic_id_registered = bigsmp_apic_id_registered,
-
- .irq_delivery_mode = dest_Fixed,
- /* phys delivery to target CPU: */
- .irq_dest_mode = 0,
-
- .target_cpus = bigsmp_target_cpus,
- .disable_esr = 1,
- .dest_logical = 0,
- .check_apicid_used = bigsmp_check_apicid_used,
- .check_apicid_present = bigsmp_check_apicid_present,
-
- .vector_allocation_domain = bigsmp_vector_allocation_domain,
- .init_apic_ldr = bigsmp_init_apic_ldr,
-
- .ioapic_phys_id_map = bigsmp_ioapic_phys_id_map,
- .setup_apic_routing = bigsmp_setup_apic_routing,
- .multi_timer_check = NULL,
- .apicid_to_node = bigsmp_apicid_to_node,
- .cpu_to_logical_apicid = bigsmp_cpu_to_logical_apicid,
- .cpu_present_to_apicid = bigsmp_cpu_present_to_apicid,
- .apicid_to_cpu_present = bigsmp_apicid_to_cpu_present,
- .setup_portio_remap = NULL,
- .check_phys_apicid_present = bigsmp_check_phys_apicid_present,
- .enable_apic_mode = NULL,
- .phys_pkg_id = bigsmp_phys_pkg_id,
- .mps_oem_check = NULL,
-
- .get_apic_id = bigsmp_get_apic_id,
- .set_apic_id = NULL,
- .apic_id_mask = 0xFF << 24,
-
- .cpu_mask_to_apicid = bigsmp_cpu_mask_to_apicid,
- .cpu_mask_to_apicid_and = bigsmp_cpu_mask_to_apicid_and,
-
- .send_IPI_mask = bigsmp_send_IPI_mask,
- .send_IPI_mask_allbutself = NULL,
- .send_IPI_allbutself = bigsmp_send_IPI_allbutself,
- .send_IPI_all = bigsmp_send_IPI_all,
- .send_IPI_self = default_send_IPI_self,
-
- .wakeup_cpu = NULL,
- .trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW,
- .trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH,
-
- .wait_for_init_deassert = default_wait_for_init_deassert,
-
- .smp_callin_clear_local_apic = NULL,
- .inquire_remote_apic = default_inquire_remote_apic,
-
- .read = native_apic_mem_read,
- .write = native_apic_mem_write,
- .icr_read = native_apic_icr_read,
- .icr_write = native_apic_icr_write,
- .wait_icr_idle = native_apic_wait_icr_idle,
- .safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
-};
+++ /dev/null
-/*
- * 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.
- * Copyright (C) 2009, Red Hat, Inc., Ingo Molnar
- *
- * 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/notifier.h>
-#include <linux/spinlock.h>
-#include <linux/cpumask.h>
-#include <linux/threads.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/reboot.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/acpi.h>
-#include <linux/init.h>
-#include <linux/nmi.h>
-#include <linux/smp.h>
-#include <linux/io.h>
-
-#include <asm/apicdef.h>
-#include <asm/atomic.h>
-#include <asm/fixmap.h>
-#include <asm/mpspec.h>
-#include <asm/setup.h>
-#include <asm/apic.h>
-#include <asm/ipi.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_SW_APIC 0x1020b
-
-#define MIP_PORT(val) ((val >> 32) & 0xffff)
-
-#define MIP_RD_LO(val) (val & 0xffffffff)
-
-struct mip_reg {
- unsigned long long off_0x00;
- unsigned long long off_0x08;
- unsigned long long off_0x10;
- unsigned long long off_0x18;
- unsigned long long off_0x20;
- unsigned long long off_0x28;
- unsigned long long off_0x30;
- unsigned long long off_0x38;
-};
-
-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 psai {
- unsigned long long entry_type;
- unsigned long long addr;
- unsigned long long bep_addr;
-};
-
-#ifdef CONFIG_ACPI
-
-struct es7000_oem_table {
- struct acpi_table_header Header;
- u32 OEMTableAddr;
- u32 OEMTableSize;
-};
-
-static unsigned long oem_addrX;
-static unsigned long oem_size;
-
-#endif
-
-/*
- * ES7000 Globals
- */
-
-static volatile unsigned long *psai;
-static struct mip_reg *mip_reg;
-static struct mip_reg *host_reg;
-static int mip_port;
-static unsigned long mip_addr;
-static unsigned long 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 int __init es7000_update_apic(void)
-{
- apic->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_apic_to_cluster();
- apic->wait_for_init_deassert = NULL;
- apic->wakeup_cpu = wakeup_secondary_cpu_via_mip;
- }
-
- return 0;
-}
-
-static 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_apic = es7000_update_apic;
-}
-
-/*
- * Parse the OEM Table:
- */
-static 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 int __init find_unisys_acpi_oem_table(unsigned long *oem_addr)
-{
- struct acpi_table_header *header = NULL;
- struct es7000_oem_table *table;
- acpi_size tbl_size;
- acpi_status ret;
- int i = 0;
-
- for (;;) {
- ret = acpi_get_table_with_size("OEM1", i++, &header, &tbl_size);
- if (!ACPI_SUCCESS(ret))
- return -1;
-
- if (!memcmp((char *) &header->oem_id, "UNISYS", 6))
- break;
-
- early_acpi_os_unmap_memory(header, tbl_size);
- }
-
- table = (void *)header;
-
- oem_addrX = table->OEMTableAddr;
- oem_size = table->OEMTableSize;
-
- early_acpi_os_unmap_memory(header, tbl_size);
-
- *oem_addr = (unsigned long)__acpi_map_table(oem_addrX, oem_size);
-
- return 0;
-}
-
-static void __init unmap_unisys_acpi_oem_table(unsigned long oem_addr)
-{
- if (!oem_addr)
- return;
-
- __acpi_unmap_table((char *)oem_addr, oem_size);
-}
-
-static int es7000_check_dsdt(void)
-{
- struct acpi_table_header header;
-
- if (ACPI_SUCCESS(acpi_get_table_header(ACPI_SIG_DSDT, 0, &header)) &&
- !strncmp(header.oem_id, "UNISYS", 6))
- return 1;
- return 0;
-}
-
-/* Hook from generic ACPI tables.c */
-static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
-{
- unsigned long oem_addr = 0;
- int check_dsdt;
- int ret = 0;
-
- /* check dsdt at first to avoid clear fix_map for oem_addr */
- check_dsdt = es7000_check_dsdt();
-
- if (!find_unisys_acpi_oem_table(&oem_addr)) {
- if (check_dsdt) {
- ret = parse_unisys_oem((char *)oem_addr);
- } else {
- setup_unisys();
- ret = 1;
- }
- /*
- * we need to unmap it
- */
- unmap_unisys_acpi_oem_table(oem_addr);
- }
- return ret;
-}
-#else /* !CONFIG_ACPI: */
-static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
-{
- return 0;
-}
-#endif /* !CONFIG_ACPI */
-
-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 ((host_reg->off_0x38 & MIP_VALID) != 0) {
- if (--spin <= 0) {
- WARN(1, "Timeout waiting for Host Valid Flag\n");
- return -1;
- }
- es7000_spin(MIP_SPIN);
- }
-
- memcpy(host_reg, mip_reg, sizeof(struct mip_reg));
- outb(1, mip_port);
-
- spin = MIP_SPIN;
-
- while ((mip_reg->off_0x38 & MIP_VALID) == 0) {
- if (--spin <= 0) {
- WARN(1, "Timeout waiting for MIP Valid Flag\n");
- return -1;
- }
- es7000_spin(MIP_SPIN);
- }
-
- status = (mip_reg->off_0x00 & 0xffff0000000000ULL) >> 48;
- mip_reg->off_0x38 &= ~MIP_VALID;
-
- return status;
-}
-
-static void __init es7000_enable_apic_mode(void)
-{
- struct mip_reg es7000_mip_reg;
- int mip_status;
-
- if (!es7000_plat)
- return;
-
- printk(KERN_INFO "ES7000: Enabling APIC mode.\n");
- memset(&es7000_mip_reg, 0, sizeof(struct mip_reg));
- es7000_mip_reg.off_0x00 = MIP_SW_APIC;
- es7000_mip_reg.off_0x38 = MIP_VALID;
-
- while ((mip_status = es7000_mip_write(&es7000_mip_reg)) != 0)
- WARN(1, "Command failed, status = %x\n", mip_status);
-}
-
-static void es7000_vector_allocation_domain(int cpu, cpumask_t *retmask)
-{
- /* Careful. Some cpus do not strictly honor the set of cpus
- * specified in the interrupt destination when using lowest
- * priority interrupt delivery mode.
- *
- * In particular there was a hyperthreading cpu observed to
- * deliver interrupts to the wrong hyperthread when only one
- * hyperthread was specified in the interrupt desitination.
- */
- *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } };
-}
-
-
-static void es7000_wait_for_init_deassert(atomic_t *deassert)
-{
-#ifndef CONFIG_ES7000_CLUSTERED_APIC
- while (!atomic_read(deassert))
- cpu_relax();
-#endif
- return;
-}
-
-static unsigned int es7000_get_apic_id(unsigned long x)
-{
- return (x >> 24) & 0xFF;
-}
-
-static void es7000_send_IPI_mask(const struct cpumask *mask, int vector)
-{
- default_send_IPI_mask_sequence_phys(mask, vector);
-}
-
-static void es7000_send_IPI_allbutself(int vector)
-{
- default_send_IPI_mask_allbutself_phys(cpu_online_mask, vector);
-}
-
-static void es7000_send_IPI_all(int vector)
-{
- es7000_send_IPI_mask(cpu_online_mask, vector);
-}
-
-static int es7000_apic_id_registered(void)
-{
- return 1;
-}
-
-static const cpumask_t *target_cpus_cluster(void)
-{
- return &CPU_MASK_ALL;
-}
-
-static const cpumask_t *es7000_target_cpus(void)
-{
- return &cpumask_of_cpu(smp_processor_id());
-}
-
-static unsigned long
-es7000_check_apicid_used(physid_mask_t bitmap, int apicid)
-{
- return 0;
-}
-static unsigned long es7000_check_apicid_present(int bit)
-{
- return physid_isset(bit, phys_cpu_present_map);
-}
-
-static unsigned long calculate_ldr(int cpu)
-{
- unsigned long id = per_cpu(x86_bios_cpu_apicid, cpu);
-
- return SET_APIC_LOGICAL_ID(id);
-}
-
-/*
- * Set up the logical destination ID.
- *
- * Intel recommends to set DFR, LdR and TPR before enabling
- * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel
- * document number 292116). So here it goes...
- */
-static void es7000_init_apic_ldr_cluster(void)
-{
- unsigned long val;
- int cpu = smp_processor_id();
-
- apic_write(APIC_DFR, APIC_DFR_CLUSTER);
- val = calculate_ldr(cpu);
- apic_write(APIC_LDR, val);
-}
-
-static void es7000_init_apic_ldr(void)
-{
- unsigned long val;
- int cpu = smp_processor_id();
-
- apic_write(APIC_DFR, APIC_DFR_FLAT);
- val = calculate_ldr(cpu);
- apic_write(APIC_LDR, val);
-}
-
-static void es7000_setup_apic_routing(void)
-{
- int apic = per_cpu(x86_bios_cpu_apicid, smp_processor_id());
-
- printk(KERN_INFO
- "Enabling APIC mode: %s. Using %d I/O APICs, target cpus %lx\n",
- (apic_version[apic] == 0x14) ?
- "Physical Cluster" : "Logical Cluster",
- nr_ioapics, cpus_addr(*es7000_target_cpus())[0]);
-}
-
-static int es7000_apicid_to_node(int logical_apicid)
-{
- return 0;
-}
-
-
-static int es7000_cpu_present_to_apicid(int mps_cpu)
-{
- if (!mps_cpu)
- return boot_cpu_physical_apicid;
- else if (mps_cpu < nr_cpu_ids)
- return per_cpu(x86_bios_cpu_apicid, mps_cpu);
- else
- return BAD_APICID;
-}
-
-static int cpu_id;
-
-static physid_mask_t es7000_apicid_to_cpu_present(int phys_apicid)
-{
- physid_mask_t mask;
-
- mask = physid_mask_of_physid(cpu_id);
- ++cpu_id;
-
- return mask;
-}
-
-/* Mapping from cpu number to logical apicid */
-static int es7000_cpu_to_logical_apicid(int cpu)
-{
-#ifdef CONFIG_SMP
- if (cpu >= nr_cpu_ids)
- return BAD_APICID;
- return cpu_2_logical_apicid[cpu];
-#else
- return logical_smp_processor_id();
-#endif
-}
-
-static physid_mask_t es7000_ioapic_phys_id_map(physid_mask_t phys_map)
-{
- /* For clustered we don't have a good way to do this yet - hack */
- return physids_promote(0xff);
-}
-
-static int es7000_check_phys_apicid_present(int cpu_physical_apicid)
-{
- boot_cpu_physical_apicid = read_apic_id();
- return 1;
-}
-
-static unsigned int
-es7000_cpu_mask_to_apicid_cluster(const struct cpumask *cpumask)
-{
- int cpus_found = 0;
- int num_bits_set;
- int apicid;
- int cpu;
-
- num_bits_set = cpumask_weight(cpumask);
- /* Return id to all */
- if (num_bits_set == nr_cpu_ids)
- return 0xFF;
- /*
- * The cpus in the mask must all be on the apic cluster. If are not
- * on the same apicid cluster return default value of target_cpus():
- */
- cpu = cpumask_first(cpumask);
- apicid = es7000_cpu_to_logical_apicid(cpu);
-
- while (cpus_found < num_bits_set) {
- if (cpumask_test_cpu(cpu, cpumask)) {
- int new_apicid = es7000_cpu_to_logical_apicid(cpu);
-
- if (APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
- WARN(1, "Not a valid mask!");
-
- return 0xFF;
- }
- apicid = new_apicid;
- cpus_found++;
- }
- cpu++;
- }
- return apicid;
-}
-
-static unsigned int es7000_cpu_mask_to_apicid(const cpumask_t *cpumask)
-{
- int cpus_found = 0;
- int num_bits_set;
- int apicid;
- int cpu;
-
- num_bits_set = cpus_weight(*cpumask);
- /* Return id to all */
- if (num_bits_set == nr_cpu_ids)
- return es7000_cpu_to_logical_apicid(0);
- /*
- * The cpus in the mask must all be on the apic cluster. If are not
- * on the same apicid cluster return default value of target_cpus():
- */
- cpu = first_cpu(*cpumask);
- apicid = es7000_cpu_to_logical_apicid(cpu);
- while (cpus_found < num_bits_set) {
- if (cpu_isset(cpu, *cpumask)) {
- int new_apicid = es7000_cpu_to_logical_apicid(cpu);
-
- if (APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
- printk("%s: Not a valid mask!\n", __func__);
-
- return es7000_cpu_to_logical_apicid(0);
- }
- apicid = new_apicid;
- cpus_found++;
- }
- cpu++;
- }
- return apicid;
-}
-
-static unsigned int
-es7000_cpu_mask_to_apicid_and(const struct cpumask *inmask,
- const struct cpumask *andmask)
-{
- int apicid = es7000_cpu_to_logical_apicid(0);
- cpumask_var_t cpumask;
-
- if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC))
- return apicid;
-
- cpumask_and(cpumask, inmask, andmask);
- cpumask_and(cpumask, cpumask, cpu_online_mask);
- apicid = es7000_cpu_mask_to_apicid(cpumask);
-
- free_cpumask_var(cpumask);
-
- return apicid;
-}
-
-static int es7000_phys_pkg_id(int cpuid_apic, int index_msb)
-{
- return cpuid_apic >> index_msb;
-}
-
-void __init es7000_update_apic_to_cluster(void)
-{
- apic->target_cpus = target_cpus_cluster;
- apic->irq_delivery_mode = dest_LowestPrio;
- /* logical delivery broadcast to all procs: */
- apic->irq_dest_mode = 1;
-
- apic->init_apic_ldr = es7000_init_apic_ldr_cluster;
-
- apic->cpu_mask_to_apicid = es7000_cpu_mask_to_apicid_cluster;
-}
-
-static int probe_es7000(void)
-{
- /* probed later in mptable/ACPI hooks */
- return 0;
-}
-
-static __init int
-es7000_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
-{
- if (mpc->oemptr) {
- struct mpc_oemtable *oem_table =
- (struct mpc_oemtable *)mpc->oemptr;
-
- if (!strncmp(oem, "UNISYS", 6))
- return parse_unisys_oem((char *)oem_table);
- }
- return 0;
-}
-
-
-struct apic apic_es7000 = {
-
- .name = "es7000",
- .probe = probe_es7000,
- .acpi_madt_oem_check = es7000_acpi_madt_oem_check,
- .apic_id_registered = es7000_apic_id_registered,
-
- .irq_delivery_mode = dest_Fixed,
- /* phys delivery to target CPUs: */
- .irq_dest_mode = 0,
-
- .target_cpus = es7000_target_cpus,
- .disable_esr = 1,
- .dest_logical = 0,
- .check_apicid_used = es7000_check_apicid_used,
- .check_apicid_present = es7000_check_apicid_present,
-
- .vector_allocation_domain = es7000_vector_allocation_domain,
- .init_apic_ldr = es7000_init_apic_ldr,
-
- .ioapic_phys_id_map = es7000_ioapic_phys_id_map,
- .setup_apic_routing = es7000_setup_apic_routing,
- .multi_timer_check = NULL,
- .apicid_to_node = es7000_apicid_to_node,
- .cpu_to_logical_apicid = es7000_cpu_to_logical_apicid,
- .cpu_present_to_apicid = es7000_cpu_present_to_apicid,
- .apicid_to_cpu_present = es7000_apicid_to_cpu_present,
- .setup_portio_remap = NULL,
- .check_phys_apicid_present = es7000_check_phys_apicid_present,
- .enable_apic_mode = es7000_enable_apic_mode,
- .phys_pkg_id = es7000_phys_pkg_id,
- .mps_oem_check = es7000_mps_oem_check,
-
- .get_apic_id = es7000_get_apic_id,
- .set_apic_id = NULL,
- .apic_id_mask = 0xFF << 24,
-
- .cpu_mask_to_apicid = es7000_cpu_mask_to_apicid,
- .cpu_mask_to_apicid_and = es7000_cpu_mask_to_apicid_and,
-
- .send_IPI_mask = es7000_send_IPI_mask,
- .send_IPI_mask_allbutself = NULL,
- .send_IPI_allbutself = es7000_send_IPI_allbutself,
- .send_IPI_all = es7000_send_IPI_all,
- .send_IPI_self = default_send_IPI_self,
-
- .wakeup_cpu = NULL,
-
- .trampoline_phys_low = 0x467,
- .trampoline_phys_high = 0x469,
-
- .wait_for_init_deassert = es7000_wait_for_init_deassert,
-
- /* Nothing to do for most platforms, since cleared by the INIT cycle: */
- .smp_callin_clear_local_apic = NULL,
- .inquire_remote_apic = default_inquire_remote_apic,
-
- .read = native_apic_mem_read,
- .write = native_apic_mem_write,
- .icr_read = native_apic_icr_read,
- .icr_write = native_apic_icr_write,
- .wait_icr_idle = native_apic_wait_icr_idle,
- .safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
-};
+++ /dev/null
-/*
- * Written by: Patricia Gaughen, IBM Corporation
- *
- * Copyright (C) 2002, IBM Corp.
- * Copyright (C) 2009, Red Hat, Inc., Ingo Molnar
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to <gone@us.ibm.com>
- */
-#include <linux/nodemask.h>
-#include <linux/topology.h>
-#include <linux/bootmem.h>
-#include <linux/threads.h>
-#include <linux/cpumask.h>
-#include <linux/kernel.h>
-#include <linux/mmzone.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/numa.h>
-#include <linux/smp.h>
-#include <linux/io.h>
-#include <linux/mm.h>
-
-#include <asm/processor.h>
-#include <asm/fixmap.h>
-#include <asm/mpspec.h>
-#include <asm/numaq.h>
-#include <asm/setup.h>
-#include <asm/apic.h>
-#include <asm/e820.h>
-#include <asm/ipi.h>
-
-#define MB_TO_PAGES(addr) ((addr) << (20 - PAGE_SHIFT))
-
-int found_numaq;
-
-/*
- * Have to match translation table entries to main table entries by counter
- * hence the mpc_record variable .... can't see a less disgusting way of
- * doing this ....
- */
-struct mpc_trans {
- unsigned char mpc_type;
- unsigned char trans_len;
- unsigned char trans_type;
- unsigned char trans_quad;
- unsigned char trans_global;
- unsigned char trans_local;
- unsigned short trans_reserved;
-};
-
-/* x86_quirks member */
-static int mpc_record;
-
-static __cpuinitdata struct mpc_trans *translation_table[MAX_MPC_ENTRY];
-
-int mp_bus_id_to_node[MAX_MP_BUSSES];
-int mp_bus_id_to_local[MAX_MP_BUSSES];
-int quad_local_to_mp_bus_id[NR_CPUS/4][4];
-
-
-static inline void numaq_register_node(int node, struct sys_cfg_data *scd)
-{
- struct eachquadmem *eq = scd->eq + node;
-
- node_set_online(node);
-
- /* Convert to pages */
- node_start_pfn[node] =
- MB_TO_PAGES(eq->hi_shrd_mem_start - eq->priv_mem_size);
-
- node_end_pfn[node] =
- MB_TO_PAGES(eq->hi_shrd_mem_start + eq->hi_shrd_mem_size);
-
- e820_register_active_regions(node, node_start_pfn[node],
- node_end_pfn[node]);
-
- memory_present(node, node_start_pfn[node], node_end_pfn[node]);
-
- node_remap_size[node] = node_memmap_size_bytes(node,
- node_start_pfn[node],
- node_end_pfn[node]);
-}
-
-/*
- * Function: smp_dump_qct()
- *
- * Description: gets memory layout from the quad config table. This
- * function also updates node_online_map with the nodes (quads) present.
- */
-static void __init smp_dump_qct(void)
-{
- struct sys_cfg_data *scd;
- int node;
-
- scd = (void *)__va(SYS_CFG_DATA_PRIV_ADDR);
-
- nodes_clear(node_online_map);
- for_each_node(node) {
- if (scd->quads_present31_0 & (1 << node))
- numaq_register_node(node, scd);
- }
-}
-
-void __cpuinit numaq_tsc_disable(void)
-{
- if (!found_numaq)
- return;
-
- if (num_online_nodes() > 1) {
- printk(KERN_DEBUG "NUMAQ: disabling TSC\n");
- setup_clear_cpu_cap(X86_FEATURE_TSC);
- }
-}
-
-static int __init numaq_pre_time_init(void)
-{
- numaq_tsc_disable();
- return 0;
-}
-
-static inline int generate_logical_apicid(int quad, int phys_apicid)
-{
- return (quad << 4) + (phys_apicid ? phys_apicid << 1 : 1);
-}
-
-/* x86_quirks member */
-static int mpc_apic_id(struct mpc_cpu *m)
-{
- int quad = translation_table[mpc_record]->trans_quad;
- int logical_apicid = generate_logical_apicid(quad, m->apicid);
-
- printk(KERN_DEBUG
- "Processor #%d %u:%u APIC version %d (quad %d, apic %d)\n",
- m->apicid, (m->cpufeature & CPU_FAMILY_MASK) >> 8,
- (m->cpufeature & CPU_MODEL_MASK) >> 4,
- m->apicver, quad, logical_apicid);
-
- return logical_apicid;
-}
-
-/* x86_quirks member */
-static void mpc_oem_bus_info(struct mpc_bus *m, char *name)
-{
- int quad = translation_table[mpc_record]->trans_quad;
- int local = translation_table[mpc_record]->trans_local;
-
- mp_bus_id_to_node[m->busid] = quad;
- mp_bus_id_to_local[m->busid] = local;
-
- printk(KERN_INFO "Bus #%d is %s (node %d)\n", m->busid, name, quad);
-}
-
-/* x86_quirks member */
-static void mpc_oem_pci_bus(struct mpc_bus *m)
-{
- int quad = translation_table[mpc_record]->trans_quad;
- int local = translation_table[mpc_record]->trans_local;
-
- quad_local_to_mp_bus_id[quad][local] = m->busid;
-}
-
-static void __init MP_translation_info(struct mpc_trans *m)
-{
- printk(KERN_INFO
- "Translation: record %d, type %d, quad %d, global %d, local %d\n",
- mpc_record, m->trans_type, m->trans_quad, m->trans_global,
- m->trans_local);
-
- if (mpc_record >= MAX_MPC_ENTRY)
- printk(KERN_ERR "MAX_MPC_ENTRY exceeded!\n");
- else
- translation_table[mpc_record] = m; /* stash this for later */
-
- if (m->trans_quad < MAX_NUMNODES && !node_online(m->trans_quad))
- node_set_online(m->trans_quad);
-}
-
-static int __init mpf_checksum(unsigned char *mp, int len)
-{
- int sum = 0;
-
- while (len--)
- sum += *mp++;
-
- return sum & 0xFF;
-}
-
-/*
- * Read/parse the MPC oem tables
- */
-static void __init
- smp_read_mpc_oem(struct mpc_oemtable *oemtable, unsigned short oemsize)
-{
- int count = sizeof(*oemtable); /* the header size */
- unsigned char *oemptr = ((unsigned char *)oemtable) + count;
-
- mpc_record = 0;
- printk(KERN_INFO
- "Found an OEM MPC table at %8p - parsing it ... \n", oemtable);
-
- if (memcmp(oemtable->signature, MPC_OEM_SIGNATURE, 4)) {
- printk(KERN_WARNING
- "SMP mpc oemtable: bad signature [%c%c%c%c]!\n",
- oemtable->signature[0], oemtable->signature[1],
- oemtable->signature[2], oemtable->signature[3]);
- return;
- }
-
- if (mpf_checksum((unsigned char *)oemtable, oemtable->length)) {
- printk(KERN_WARNING "SMP oem mptable: checksum error!\n");
- return;
- }
-
- while (count < oemtable->length) {
- switch (*oemptr) {
- case MP_TRANSLATION:
- {
- struct mpc_trans *m = (void *)oemptr;
-
- MP_translation_info(m);
- oemptr += sizeof(*m);
- count += sizeof(*m);
- ++mpc_record;
- break;
- }
- default:
- printk(KERN_WARNING
- "Unrecognised OEM table entry type! - %d\n",
- (int)*oemptr);
- return;
- }
- }
-}
-
-static int __init numaq_setup_ioapic_ids(void)
-{
- /* so can skip it */
- return 1;
-}
-
-static int __init numaq_update_apic(void)
-{
- apic->wakeup_cpu = wakeup_secondary_cpu_via_nmi;
-
- return 0;
-}
-
-static struct x86_quirks numaq_x86_quirks __initdata = {
- .arch_pre_time_init = numaq_pre_time_init,
- .arch_time_init = NULL,
- .arch_pre_intr_init = NULL,
- .arch_memory_setup = NULL,
- .arch_intr_init = NULL,
- .arch_trap_init = NULL,
- .mach_get_smp_config = NULL,
- .mach_find_smp_config = NULL,
- .mpc_record = &mpc_record,
- .mpc_apic_id = mpc_apic_id,
- .mpc_oem_bus_info = mpc_oem_bus_info,
- .mpc_oem_pci_bus = mpc_oem_pci_bus,
- .smp_read_mpc_oem = smp_read_mpc_oem,
- .setup_ioapic_ids = numaq_setup_ioapic_ids,
- .update_apic = numaq_update_apic,
-};
-
-static __init void early_check_numaq(void)
-{
- /*
- * Find possible boot-time SMP configuration:
- */
- early_find_smp_config();
-
- /*
- * get boot-time SMP configuration:
- */
- if (smp_found_config)
- early_get_smp_config();
-
- if (found_numaq)
- x86_quirks = &numaq_x86_quirks;
-}
-
-int __init get_memcfg_numaq(void)
-{
- early_check_numaq();
- if (!found_numaq)
- return 0;
- smp_dump_qct();
-
- return 1;
-}
-
-#define NUMAQ_APIC_DFR_VALUE (APIC_DFR_CLUSTER)
-
-static inline unsigned int numaq_get_apic_id(unsigned long x)
-{
- return (x >> 24) & 0x0F;
-}
-
-static inline void numaq_send_IPI_mask(const struct cpumask *mask, int vector)
-{
- default_send_IPI_mask_sequence_logical(mask, vector);
-}
-
-static inline void numaq_send_IPI_allbutself(int vector)
-{
- default_send_IPI_mask_allbutself_logical(cpu_online_mask, vector);
-}
-
-static inline void numaq_send_IPI_all(int vector)
-{
- numaq_send_IPI_mask(cpu_online_mask, vector);
-}
-
-#define NUMAQ_TRAMPOLINE_PHYS_LOW (0x8)
-#define NUMAQ_TRAMPOLINE_PHYS_HIGH (0xa)
-
-/*
- * Because we use NMIs rather than the INIT-STARTUP sequence to
- * bootstrap the CPUs, the APIC may be in a weird state. Kick it:
- */
-static inline void numaq_smp_callin_clear_local_apic(void)
-{
- clear_local_APIC();
-}
-
-static inline const cpumask_t *numaq_target_cpus(void)
-{
- return &CPU_MASK_ALL;
-}
-
-static inline unsigned long
-numaq_check_apicid_used(physid_mask_t bitmap, int apicid)
-{
- return physid_isset(apicid, bitmap);
-}
-
-static inline unsigned long numaq_check_apicid_present(int bit)
-{
- return physid_isset(bit, phys_cpu_present_map);
-}
-
-static inline int numaq_apic_id_registered(void)
-{
- return 1;
-}
-
-static inline void numaq_init_apic_ldr(void)
-{
- /* Already done in NUMA-Q firmware */
-}
-
-static inline void numaq_setup_apic_routing(void)
-{
- printk(KERN_INFO
- "Enabling APIC mode: NUMA-Q. Using %d I/O APICs\n",
- nr_ioapics);
-}
-
-/*
- * Skip adding the timer int on secondary nodes, which causes
- * a small but painful rift in the time-space continuum.
- */
-static inline int numaq_multi_timer_check(int apic, int irq)
-{
- return apic != 0 && irq == 0;
-}
-
-static inline physid_mask_t numaq_ioapic_phys_id_map(physid_mask_t phys_map)
-{
- /* We don't have a good way to do this yet - hack */
- return physids_promote(0xFUL);
-}
-
-static inline int numaq_cpu_to_logical_apicid(int cpu)
-{
- if (cpu >= nr_cpu_ids)
- return BAD_APICID;
- return cpu_2_logical_apicid[cpu];
-}
-
-/*
- * Supporting over 60 cpus on NUMA-Q requires a locality-dependent
- * cpu to APIC ID relation to properly interact with the intelligent
- * mode of the cluster controller.
- */
-static inline int numaq_cpu_present_to_apicid(int mps_cpu)
-{
- if (mps_cpu < 60)
- return ((mps_cpu >> 2) << 4) | (1 << (mps_cpu & 0x3));
- else
- return BAD_APICID;
-}
-
-static inline int numaq_apicid_to_node(int logical_apicid)
-{
- return logical_apicid >> 4;
-}
-
-static inline physid_mask_t numaq_apicid_to_cpu_present(int logical_apicid)
-{
- int node = numaq_apicid_to_node(logical_apicid);
- int cpu = __ffs(logical_apicid & 0xf);
-
- return physid_mask_of_physid(cpu + 4*node);
-}
-
-/* Where the IO area was mapped on multiquad, always 0 otherwise */
-void *xquad_portio;
-
-static inline int numaq_check_phys_apicid_present(int boot_cpu_physical_apicid)
-{
- return 1;
-}
-
-/*
- * We use physical apicids here, not logical, so just return the default
- * physical broadcast to stop people from breaking us
- */
-static inline unsigned int numaq_cpu_mask_to_apicid(const cpumask_t *cpumask)
-{
- return 0x0F;
-}
-
-static inline unsigned int
-numaq_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
- const struct cpumask *andmask)
-{
- return 0x0F;
-}
-
-/* No NUMA-Q box has a HT CPU, but it can't hurt to use the default code. */
-static inline int numaq_phys_pkg_id(int cpuid_apic, int index_msb)
-{
- return cpuid_apic >> index_msb;
-}
-
-static int
-numaq_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
-{
- if (strncmp(oem, "IBM NUMA", 8))
- printk(KERN_ERR "Warning! Not a NUMA-Q system!\n");
- else
- found_numaq = 1;
-
- return found_numaq;
-}
-
-static int probe_numaq(void)
-{
- /* already know from get_memcfg_numaq() */
- return found_numaq;
-}
-
-static void numaq_vector_allocation_domain(int cpu, cpumask_t *retmask)
-{
- /* Careful. Some cpus do not strictly honor the set of cpus
- * specified in the interrupt destination when using lowest
- * priority interrupt delivery mode.
- *
- * In particular there was a hyperthreading cpu observed to
- * deliver interrupts to the wrong hyperthread when only one
- * hyperthread was specified in the interrupt desitination.
- */
- *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } };
-}
-
-static void numaq_setup_portio_remap(void)
-{
- int num_quads = num_online_nodes();
-
- if (num_quads <= 1)
- return;
-
- printk(KERN_INFO
- "Remapping cross-quad port I/O for %d quads\n", num_quads);
-
- xquad_portio = ioremap(XQUAD_PORTIO_BASE, num_quads*XQUAD_PORTIO_QUAD);
-
- printk(KERN_INFO
- "xquad_portio vaddr 0x%08lx, len %08lx\n",
- (u_long) xquad_portio, (u_long) num_quads*XQUAD_PORTIO_QUAD);
-}
-
-struct apic apic_numaq = {
-
- .name = "NUMAQ",
- .probe = probe_numaq,
- .acpi_madt_oem_check = NULL,
- .apic_id_registered = numaq_apic_id_registered,
-
- .irq_delivery_mode = dest_LowestPrio,
- /* physical delivery on LOCAL quad: */
- .irq_dest_mode = 0,
-
- .target_cpus = numaq_target_cpus,
- .disable_esr = 1,
- .dest_logical = APIC_DEST_LOGICAL,
- .check_apicid_used = numaq_check_apicid_used,
- .check_apicid_present = numaq_check_apicid_present,
-
- .vector_allocation_domain = numaq_vector_allocation_domain,
- .init_apic_ldr = numaq_init_apic_ldr,
-
- .ioapic_phys_id_map = numaq_ioapic_phys_id_map,
- .setup_apic_routing = numaq_setup_apic_routing,
- .multi_timer_check = numaq_multi_timer_check,
- .apicid_to_node = numaq_apicid_to_node,
- .cpu_to_logical_apicid = numaq_cpu_to_logical_apicid,
- .cpu_present_to_apicid = numaq_cpu_present_to_apicid,
- .apicid_to_cpu_present = numaq_apicid_to_cpu_present,
- .setup_portio_remap = numaq_setup_portio_remap,
- .check_phys_apicid_present = numaq_check_phys_apicid_present,
- .enable_apic_mode = NULL,
- .phys_pkg_id = numaq_phys_pkg_id,
- .mps_oem_check = numaq_mps_oem_check,
-
- .get_apic_id = numaq_get_apic_id,
- .set_apic_id = NULL,
- .apic_id_mask = 0x0F << 24,
-
- .cpu_mask_to_apicid = numaq_cpu_mask_to_apicid,
- .cpu_mask_to_apicid_and = numaq_cpu_mask_to_apicid_and,
-
- .send_IPI_mask = numaq_send_IPI_mask,
- .send_IPI_mask_allbutself = NULL,
- .send_IPI_allbutself = numaq_send_IPI_allbutself,
- .send_IPI_all = numaq_send_IPI_all,
- .send_IPI_self = default_send_IPI_self,
-
- .wakeup_cpu = NULL,
- .trampoline_phys_low = NUMAQ_TRAMPOLINE_PHYS_LOW,
- .trampoline_phys_high = NUMAQ_TRAMPOLINE_PHYS_HIGH,
-
- /* We don't do anything here because we use NMI's to boot instead */
- .wait_for_init_deassert = NULL,
-
- .smp_callin_clear_local_apic = numaq_smp_callin_clear_local_apic,
- .inquire_remote_apic = NULL,
-
- .read = native_apic_mem_read,
- .write = native_apic_mem_write,
- .icr_read = native_apic_icr_read,
- .icr_write = native_apic_icr_write,
- .wait_icr_idle = native_apic_wait_icr_idle,
- .safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
-};
+++ /dev/null
-/*
- * Default generic APIC driver. This handles up to 8 CPUs.
- *
- * Copyright 2003 Andi Kleen, SuSE Labs.
- * Subject to the GNU Public License, v.2
- *
- * Generic x86 APIC driver probe layer.
- */
-#include <linux/threads.h>
-#include <linux/cpumask.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/ctype.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <asm/fixmap.h>
-#include <asm/mpspec.h>
-#include <asm/apicdef.h>
-#include <asm/apic.h>
-#include <asm/setup.h>
-
-#include <linux/threads.h>
-#include <linux/cpumask.h>
-#include <asm/mpspec.h>
-#include <asm/fixmap.h>
-#include <asm/apicdef.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <asm/ipi.h>
-
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <asm/acpi.h>
-#include <asm/arch_hooks.h>
-#include <asm/e820.h>
-#include <asm/setup.h>
-
-#ifdef CONFIG_HOTPLUG_CPU
-#define DEFAULT_SEND_IPI (1)
-#else
-#define DEFAULT_SEND_IPI (0)
-#endif
-
-int no_broadcast = DEFAULT_SEND_IPI;
-
-#ifdef CONFIG_X86_LOCAL_APIC
-
-void default_setup_apic_routing(void)
-{
-#ifdef CONFIG_X86_IO_APIC
- printk(KERN_INFO
- "Enabling APIC mode: Flat. Using %d I/O APICs\n",
- nr_ioapics);
-#endif
-}
-
-static void default_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
- /*
- * Careful. Some cpus do not strictly honor the set of cpus
- * specified in the interrupt destination when using lowest
- * priority interrupt delivery mode.
- *
- * In particular there was a hyperthreading cpu observed to
- * deliver interrupts to the wrong hyperthread when only one
- * hyperthread was specified in the interrupt desitination.
- */
- *retmask = (cpumask_t) { { [0] = APIC_ALL_CPUS } };
-}
-
-/* should be called last. */
-static int probe_default(void)
-{
- return 1;
-}
-
-struct apic apic_default = {
-
- .name = "default",
- .probe = probe_default,
- .acpi_madt_oem_check = NULL,
- .apic_id_registered = default_apic_id_registered,
-
- .irq_delivery_mode = dest_LowestPrio,
- /* logical delivery broadcast to all CPUs: */
- .irq_dest_mode = 1,
-
- .target_cpus = default_target_cpus,
- .disable_esr = 0,
- .dest_logical = APIC_DEST_LOGICAL,
- .check_apicid_used = default_check_apicid_used,
- .check_apicid_present = default_check_apicid_present,
-
- .vector_allocation_domain = default_vector_allocation_domain,
- .init_apic_ldr = default_init_apic_ldr,
-
- .ioapic_phys_id_map = default_ioapic_phys_id_map,
- .setup_apic_routing = default_setup_apic_routing,
- .multi_timer_check = NULL,
- .apicid_to_node = default_apicid_to_node,
- .cpu_to_logical_apicid = default_cpu_to_logical_apicid,
- .cpu_present_to_apicid = default_cpu_present_to_apicid,
- .apicid_to_cpu_present = default_apicid_to_cpu_present,
- .setup_portio_remap = NULL,
- .check_phys_apicid_present = default_check_phys_apicid_present,
- .enable_apic_mode = NULL,
- .phys_pkg_id = default_phys_pkg_id,
- .mps_oem_check = NULL,
-
- .get_apic_id = default_get_apic_id,
- .set_apic_id = NULL,
- .apic_id_mask = 0x0F << 24,
-
- .cpu_mask_to_apicid = default_cpu_mask_to_apicid,
- .cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
-
- .send_IPI_mask = default_send_IPI_mask_logical,
- .send_IPI_mask_allbutself = default_send_IPI_mask_allbutself_logical,
- .send_IPI_allbutself = default_send_IPI_allbutself,
- .send_IPI_all = default_send_IPI_all,
- .send_IPI_self = default_send_IPI_self,
-
- .wakeup_cpu = NULL,
- .trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW,
- .trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH,
-
- .wait_for_init_deassert = default_wait_for_init_deassert,
-
- .smp_callin_clear_local_apic = NULL,
- .inquire_remote_apic = default_inquire_remote_apic,
-
- .read = native_apic_mem_read,
- .write = native_apic_mem_write,
- .icr_read = native_apic_icr_read,
- .icr_write = native_apic_icr_write,
- .wait_icr_idle = native_apic_wait_icr_idle,
- .safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
-};
-
-extern struct apic apic_numaq;
-extern struct apic apic_summit;
-extern struct apic apic_bigsmp;
-extern struct apic apic_es7000;
-extern struct apic apic_default;
-
-struct apic *apic = &apic_default;
-EXPORT_SYMBOL_GPL(apic);
-
-static struct apic *apic_probe[] __initdata = {
-#ifdef CONFIG_X86_NUMAQ
- &apic_numaq,
-#endif
-#ifdef CONFIG_X86_SUMMIT
- &apic_summit,
-#endif
-#ifdef CONFIG_X86_BIGSMP
- &apic_bigsmp,
-#endif
-#ifdef CONFIG_X86_ES7000
- &apic_es7000,
-#endif
- &apic_default, /* must be last */
- NULL,
-};
-
-static int cmdline_apic __initdata;
-static int __init parse_apic(char *arg)
-{
- int i;
-
- if (!arg)
- return -EINVAL;
-
- for (i = 0; apic_probe[i]; i++) {
- if (!strcmp(apic_probe[i]->name, arg)) {
- apic = apic_probe[i];
- cmdline_apic = 1;
- return 0;
- }
- }
-
- if (x86_quirks->update_apic)
- x86_quirks->update_apic();
-
- /* Parsed again by __setup for debug/verbose */
- return 0;
-}
-early_param("apic", parse_apic);
-
-void __init generic_bigsmp_probe(void)
-{
-#ifdef CONFIG_X86_BIGSMP
- /*
- * This routine is used to switch to bigsmp mode when
- * - There is no apic= option specified by the user
- * - generic_apic_probe() has chosen apic_default as the sub_arch
- * - we find more than 8 CPUs in acpi LAPIC listing with xAPIC support
- */
-
- if (!cmdline_apic && apic == &apic_default) {
- if (apic_bigsmp.probe()) {
- apic = &apic_bigsmp;
- if (x86_quirks->update_apic)
- x86_quirks->update_apic();
- printk(KERN_INFO "Overriding APIC driver with %s\n",
- apic->name);
- }
- }
-#endif
-}
-
-void __init generic_apic_probe(void)
-{
- if (!cmdline_apic) {
- int i;
- for (i = 0; apic_probe[i]; i++) {
- if (apic_probe[i]->probe()) {
- apic = apic_probe[i];
- break;
- }
- }
- /* Not visible without early console */
- if (!apic_probe[i])
- panic("Didn't find an APIC driver");
-
- if (x86_quirks->update_apic)
- x86_quirks->update_apic();
- }
- printk(KERN_INFO "Using APIC driver %s\n", apic->name);
-}
-
-/* These functions can switch the APIC even after the initial ->probe() */
-
-int __init
-generic_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
-{
- int i;
-
- for (i = 0; apic_probe[i]; ++i) {
- if (!apic_probe[i]->mps_oem_check)
- continue;
- if (!apic_probe[i]->mps_oem_check(mpc, oem, productid))
- continue;
-
- if (!cmdline_apic) {
- apic = apic_probe[i];
- if (x86_quirks->update_apic)
- x86_quirks->update_apic();
- printk(KERN_INFO "Switched to APIC driver `%s'.\n",
- apic->name);
- }
- return 1;
- }
- return 0;
-}
-
-int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
-{
- int i;
-
- for (i = 0; apic_probe[i]; ++i) {
- if (!apic_probe[i]->acpi_madt_oem_check)
- continue;
- if (!apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id))
- continue;
-
- if (!cmdline_apic) {
- apic = apic_probe[i];
- if (x86_quirks->update_apic)
- x86_quirks->update_apic();
- printk(KERN_INFO "Switched to APIC driver `%s'.\n",
- apic->name);
- }
- return 1;
- }
- return 0;
-}
-
-#endif /* CONFIG_X86_LOCAL_APIC */
-
-/**
- * pre_intr_init_hook - initialisation prior to setting up interrupt vectors
- *
- * Description:
- * Perform any necessary interrupt initialisation prior to setting up
- * the "ordinary" interrupt call gates. For legacy reasons, the ISA
- * interrupts should be initialised here if the machine emulates a PC
- * in any way.
- **/
-void __init pre_intr_init_hook(void)
-{
- if (x86_quirks->arch_pre_intr_init) {
- if (x86_quirks->arch_pre_intr_init())
- return;
- }
- init_ISA_irqs();
-}
-
-/**
- * intr_init_hook - post gate setup interrupt initialisation
- *
- * Description:
- * Fill in any interrupts that may have been left out by the general
- * init_IRQ() routine. interrupts having to do with the machine rather
- * than the devices on the I/O bus (like APIC interrupts in intel MP
- * systems) are started here.
- **/
-void __init intr_init_hook(void)
-{
- if (x86_quirks->arch_intr_init) {
- if (x86_quirks->arch_intr_init())
- return;
- }
-}
-
-/**
- * pre_setup_arch_hook - hook called prior to any setup_arch() execution
- *
- * Description:
- * generally used to activate any machine specific identification
- * routines that may be needed before setup_arch() runs. On Voyager
- * this is used to get the board revision and type.
- **/
-void __init pre_setup_arch_hook(void)
-{
-}
-
-/**
- * trap_init_hook - initialise system specific traps
- *
- * Description:
- * Called as the final act of trap_init(). Used in VISWS to initialise
- * the various board specific APIC traps.
- **/
-void __init trap_init_hook(void)
-{
- if (x86_quirks->arch_trap_init) {
- if (x86_quirks->arch_trap_init())
- return;
- }
-}
-
-static struct irqaction irq0 = {
- .handler = timer_interrupt,
- .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL,
- .mask = CPU_MASK_NONE,
- .name = "timer"
-};
-
-/**
- * pre_time_init_hook - do any specific initialisations before.
- *
- **/
-void __init pre_time_init_hook(void)
-{
- if (x86_quirks->arch_pre_time_init)
- x86_quirks->arch_pre_time_init();
-}
-
-/**
- * time_init_hook - do any specific initialisations for the system timer.
- *
- * Description:
- * Must plug the system timer interrupt source at HZ into the IRQ listed
- * in irq_vectors.h:TIMER_IRQ
- **/
-void __init time_init_hook(void)
-{
- if (x86_quirks->arch_time_init) {
- /*
- * A nonzero return code does not mean failure, it means
- * that the architecture quirk does not want any
- * generic (timer) setup to be performed after this:
- */
- if (x86_quirks->arch_time_init())
- return;
- }
-
- irq0.mask = cpumask_of_cpu(0);
- setup_irq(0, &irq0);
-}
-
-#ifdef CONFIG_MCA
-/**
- * mca_nmi_hook - hook into MCA specific NMI chain
- *
- * Description:
- * The MCA (Microchannel Architecture) has an NMI chain for NMI sources
- * along the MCA bus. Use this to hook into that chain if you will need
- * it.
- **/
-void mca_nmi_hook(void)
-{
- /*
- * If I recall correctly, there's a whole bunch of other things that
- * we can do to check for NMI problems, but that's all I know about
- * at the moment.
- */
- pr_warning("NMI generated from unknown source!\n");
-}
-#endif
-
-static __init int no_ipi_broadcast(char *str)
-{
- get_option(&str, &no_broadcast);
- pr_info("Using %s mode\n",
- no_broadcast ? "No IPI Broadcast" : "IPI Broadcast");
- return 1;
-}
-__setup("no_ipi_broadcast=", no_ipi_broadcast);
-
-static int __init print_ipi_mode(void)
-{
- pr_info("Using IPI %s mode\n",
- no_broadcast ? "No-Shortcut" : "Shortcut");
- return 0;
-}
-
-late_initcall(print_ipi_mode);
-
+++ /dev/null
-/*
- * IBM Summit-Specific Code
- *
- * Written By: Matthew Dobson, IBM Corporation
- *
- * Copyright (c) 2003 IBM Corp.
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to <colpatch@us.ibm.com>
- *
- */
-
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <asm/io.h>
-#include <asm/bios_ebda.h>
-
-/*
- * APIC driver for the IBM "Summit" chipset.
- */
-#include <linux/threads.h>
-#include <linux/cpumask.h>
-#include <asm/mpspec.h>
-#include <asm/apic.h>
-#include <asm/smp.h>
-#include <asm/fixmap.h>
-#include <asm/apicdef.h>
-#include <asm/ipi.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/gfp.h>
-#include <linux/smp.h>
-
-static inline unsigned summit_get_apic_id(unsigned long x)
-{
- return (x >> 24) & 0xFF;
-}
-
-static inline void summit_send_IPI_mask(const cpumask_t *mask, int vector)
-{
- default_send_IPI_mask_sequence_logical(mask, vector);
-}
-
-static inline void summit_send_IPI_allbutself(int vector)
-{
- cpumask_t mask = cpu_online_map;
- cpu_clear(smp_processor_id(), mask);
-
- if (!cpus_empty(mask))
- summit_send_IPI_mask(&mask, vector);
-}
-
-static inline void summit_send_IPI_all(int vector)
-{
- summit_send_IPI_mask(&cpu_online_map, vector);
-}
-
-#include <asm/tsc.h>
-
-extern int use_cyclone;
-
-#ifdef CONFIG_X86_SUMMIT_NUMA
-extern void setup_summit(void);
-#else
-#define setup_summit() {}
-#endif
-
-static inline int
-summit_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
-{
- if (!strncmp(oem, "IBM ENSW", 8) &&
- (!strncmp(productid, "VIGIL SMP", 9)
- || !strncmp(productid, "EXA", 3)
- || !strncmp(productid, "RUTHLESS SMP", 12))){
- mark_tsc_unstable("Summit based system");
- use_cyclone = 1; /*enable cyclone-timer*/
- setup_summit();
- return 1;
- }
- return 0;
-}
-
-/* Hook from generic ACPI tables.c */
-static inline int summit_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
-{
- if (!strncmp(oem_id, "IBM", 3) &&
- (!strncmp(oem_table_id, "SERVIGIL", 8)
- || !strncmp(oem_table_id, "EXA", 3))){
- mark_tsc_unstable("Summit based system");
- use_cyclone = 1; /*enable cyclone-timer*/
- setup_summit();
- return 1;
- }
- return 0;
-}
-
-struct rio_table_hdr {
- unsigned char version; /* Version number of this data structure */
- /* Version 3 adds chassis_num & WP_index */
- unsigned char num_scal_dev; /* # of Scalability devices (Twisters for Vigil) */
- unsigned char num_rio_dev; /* # of RIO I/O devices (Cyclones and Winnipegs) */
-} __attribute__((packed));
-
-struct scal_detail {
- unsigned char node_id; /* Scalability Node ID */
- unsigned long CBAR; /* Address of 1MB register space */
- unsigned char port0node; /* Node ID port connected to: 0xFF=None */
- unsigned char port0port; /* Port num port connected to: 0,1,2, or 0xFF=None */
- unsigned char port1node; /* Node ID port connected to: 0xFF = None */
- unsigned char port1port; /* Port num port connected to: 0,1,2, or 0xFF=None */
- unsigned char port2node; /* Node ID port connected to: 0xFF = None */
- unsigned char port2port; /* Port num port connected to: 0,1,2, or 0xFF=None */
- unsigned char chassis_num; /* 1 based Chassis number (1 = boot node) */
-} __attribute__((packed));
-
-struct rio_detail {
- unsigned char node_id; /* RIO Node ID */
- unsigned long BBAR; /* Address of 1MB register space */
- unsigned char type; /* Type of device */
- unsigned char owner_id; /* For WPEG: Node ID of Cyclone that owns this WPEG*/
- /* For CYC: Node ID of Twister that owns this CYC */
- unsigned char port0node; /* Node ID port connected to: 0xFF=None */
- unsigned char port0port; /* Port num port connected to: 0,1,2, or 0xFF=None */
- unsigned char port1node; /* Node ID port connected to: 0xFF=None */
- unsigned char port1port; /* Port num port connected to: 0,1,2, or 0xFF=None */
- unsigned char first_slot; /* For WPEG: Lowest slot number below this WPEG */
- /* For CYC: 0 */
- unsigned char status; /* For WPEG: Bit 0 = 1 : the XAPIC is used */
- /* = 0 : the XAPIC is not used, ie:*/
- /* ints fwded to another XAPIC */
- /* Bits1:7 Reserved */
- /* For CYC: Bits0:7 Reserved */
- unsigned char WP_index; /* For WPEG: WPEG instance index - lower ones have */
- /* lower slot numbers/PCI bus numbers */
- /* For CYC: No meaning */
- unsigned char chassis_num; /* 1 based Chassis number */
- /* For LookOut WPEGs this field indicates the */
- /* Expansion Chassis #, enumerated from Boot */
- /* Node WPEG external port, then Boot Node CYC */
- /* external port, then Next Vigil chassis WPEG */
- /* external port, etc. */
- /* Shared Lookouts have only 1 chassis number (the */
- /* first one assigned) */
-} __attribute__((packed));
-
-
-typedef enum {
- CompatTwister = 0, /* Compatibility Twister */
- AltTwister = 1, /* Alternate Twister of internal 8-way */
- CompatCyclone = 2, /* Compatibility Cyclone */
- AltCyclone = 3, /* Alternate Cyclone of internal 8-way */
- CompatWPEG = 4, /* Compatibility WPEG */
- AltWPEG = 5, /* Second Planar WPEG */
- LookOutAWPEG = 6, /* LookOut WPEG */
- LookOutBWPEG = 7, /* LookOut WPEG */
-} node_type;
-
-static inline int is_WPEG(struct rio_detail *rio){
- return (rio->type == CompatWPEG || rio->type == AltWPEG ||
- rio->type == LookOutAWPEG || rio->type == LookOutBWPEG);
-}
-
-
-/* In clustered mode, the high nibble of APIC ID is a cluster number.
- * The low nibble is a 4-bit bitmap. */
-#define XAPIC_DEST_CPUS_SHIFT 4
-#define XAPIC_DEST_CPUS_MASK ((1u << XAPIC_DEST_CPUS_SHIFT) - 1)
-#define XAPIC_DEST_CLUSTER_MASK (XAPIC_DEST_CPUS_MASK << XAPIC_DEST_CPUS_SHIFT)
-
-#define SUMMIT_APIC_DFR_VALUE (APIC_DFR_CLUSTER)
-
-static inline const cpumask_t *summit_target_cpus(void)
-{
- /* CPU_MASK_ALL (0xff) has undefined behaviour with
- * dest_LowestPrio mode logical clustered apic interrupt routing
- * Just start on cpu 0. IRQ balancing will spread load
- */
- return &cpumask_of_cpu(0);
-}
-
-static inline unsigned long
-summit_check_apicid_used(physid_mask_t bitmap, int apicid)
-{
- return 0;
-}
-
-/* we don't use the phys_cpu_present_map to indicate apicid presence */
-static inline unsigned long summit_check_apicid_present(int bit)
-{
- return 1;
-}
-
-static inline void summit_init_apic_ldr(void)
-{
- unsigned long val, id;
- int count = 0;
- u8 my_id = (u8)hard_smp_processor_id();
- u8 my_cluster = APIC_CLUSTER(my_id);
-#ifdef CONFIG_SMP
- u8 lid;
- int i;
-
- /* Create logical APIC IDs by counting CPUs already in cluster. */
- for (count = 0, i = nr_cpu_ids; --i >= 0; ) {
- lid = cpu_2_logical_apicid[i];
- if (lid != BAD_APICID && APIC_CLUSTER(lid) == my_cluster)
- ++count;
- }
-#endif
- /* We only have a 4 wide bitmap in cluster mode. If a deranged
- * BIOS puts 5 CPUs in one APIC cluster, we're hosed. */
- BUG_ON(count >= XAPIC_DEST_CPUS_SHIFT);
- id = my_cluster | (1UL << count);
- apic_write(APIC_DFR, SUMMIT_APIC_DFR_VALUE);
- val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
- val |= SET_APIC_LOGICAL_ID(id);
- apic_write(APIC_LDR, val);
-}
-
-static inline int summit_apic_id_registered(void)
-{
- return 1;
-}
-
-static inline void summit_setup_apic_routing(void)
-{
- printk("Enabling APIC mode: Summit. Using %d I/O APICs\n",
- nr_ioapics);
-}
-
-static inline int summit_apicid_to_node(int logical_apicid)
-{
-#ifdef CONFIG_SMP
- return apicid_2_node[hard_smp_processor_id()];
-#else
- return 0;
-#endif
-}
-
-/* Mapping from cpu number to logical apicid */
-static inline int summit_cpu_to_logical_apicid(int cpu)
-{
-#ifdef CONFIG_SMP
- if (cpu >= nr_cpu_ids)
- return BAD_APICID;
- return cpu_2_logical_apicid[cpu];
-#else
- return logical_smp_processor_id();
-#endif
-}
-
-static inline int summit_cpu_present_to_apicid(int mps_cpu)
-{
- if (mps_cpu < nr_cpu_ids)
- return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
- else
- return BAD_APICID;
-}
-
-static inline physid_mask_t
-summit_ioapic_phys_id_map(physid_mask_t phys_id_map)
-{
- /* For clustered we don't have a good way to do this yet - hack */
- return physids_promote(0x0F);
-}
-
-static inline physid_mask_t summit_apicid_to_cpu_present(int apicid)
-{
- return physid_mask_of_physid(0);
-}
-
-static inline void summit_setup_portio_remap(void)
-{
-}
-
-static inline int summit_check_phys_apicid_present(int boot_cpu_physical_apicid)
-{
- return 1;
-}
-
-static inline unsigned int summit_cpu_mask_to_apicid(const cpumask_t *cpumask)
-{
- int cpus_found = 0;
- int num_bits_set;
- int apicid;
- int cpu;
-
- num_bits_set = cpus_weight(*cpumask);
- /* Return id to all */
- if (num_bits_set >= nr_cpu_ids)
- return 0xFF;
- /*
- * The cpus in the mask must all be on the apic cluster. If are not
- * on the same apicid cluster return default value of target_cpus():
- */
- cpu = first_cpu(*cpumask);
- apicid = summit_cpu_to_logical_apicid(cpu);
-
- while (cpus_found < num_bits_set) {
- if (cpu_isset(cpu, *cpumask)) {
- int new_apicid = summit_cpu_to_logical_apicid(cpu);
-
- if (APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
- printk ("%s: Not a valid mask!\n", __func__);
-
- return 0xFF;
- }
- apicid = apicid | new_apicid;
- cpus_found++;
- }
- cpu++;
- }
- return apicid;
-}
-
-static inline unsigned int
-summit_cpu_mask_to_apicid_and(const struct cpumask *inmask,
- const struct cpumask *andmask)
-{
- int apicid = summit_cpu_to_logical_apicid(0);
- cpumask_var_t cpumask;
-
- if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC))
- return apicid;
-
- cpumask_and(cpumask, inmask, andmask);
- cpumask_and(cpumask, cpumask, cpu_online_mask);
- apicid = summit_cpu_mask_to_apicid(cpumask);
-
- free_cpumask_var(cpumask);
-
- return apicid;
-}
-
-/*
- * cpuid returns the value latched in the HW at reset, not the APIC ID
- * register's value. For any box whose BIOS changes APIC IDs, like
- * clustered APIC systems, we must use hard_smp_processor_id.
- *
- * See Intel's IA-32 SW Dev's Manual Vol2 under CPUID.
- */
-static inline int summit_phys_pkg_id(int cpuid_apic, int index_msb)
-{
- return hard_smp_processor_id() >> index_msb;
-}
-
-static int probe_summit(void)
-{
- /* probed later in mptable/ACPI hooks */
- return 0;
-}
-
-static void summit_vector_allocation_domain(int cpu, cpumask_t *retmask)
-{
- /* Careful. Some cpus do not strictly honor the set of cpus
- * specified in the interrupt destination when using lowest
- * priority interrupt delivery mode.
- *
- * In particular there was a hyperthreading cpu observed to
- * deliver interrupts to the wrong hyperthread when only one
- * hyperthread was specified in the interrupt desitination.
- */
- *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } };
-}
-
-#ifdef CONFIG_X86_SUMMIT_NUMA
-static struct rio_table_hdr *rio_table_hdr __initdata;
-static struct scal_detail *scal_devs[MAX_NUMNODES] __initdata;
-static struct rio_detail *rio_devs[MAX_NUMNODES*4] __initdata;
-
-#ifndef CONFIG_X86_NUMAQ
-static int mp_bus_id_to_node[MAX_MP_BUSSES] __initdata;
-#endif
-
-static int __init setup_pci_node_map_for_wpeg(int wpeg_num, int last_bus)
-{
- int twister = 0, node = 0;
- int i, bus, num_buses;
-
- for (i = 0; i < rio_table_hdr->num_rio_dev; i++) {
- if (rio_devs[i]->node_id == rio_devs[wpeg_num]->owner_id) {
- twister = rio_devs[i]->owner_id;
- break;
- }
- }
- if (i == rio_table_hdr->num_rio_dev) {
- printk(KERN_ERR "%s: Couldn't find owner Cyclone for Winnipeg!\n", __func__);
- return last_bus;
- }
-
- for (i = 0; i < rio_table_hdr->num_scal_dev; i++) {
- if (scal_devs[i]->node_id == twister) {
- node = scal_devs[i]->node_id;
- break;
- }
- }
- if (i == rio_table_hdr->num_scal_dev) {
- printk(KERN_ERR "%s: Couldn't find owner Twister for Cyclone!\n", __func__);
- return last_bus;
- }
-
- switch (rio_devs[wpeg_num]->type) {
- case CompatWPEG:
- /*
- * The Compatibility Winnipeg controls the 2 legacy buses,
- * the 66MHz PCI bus [2 slots] and the 2 "extra" buses in case
- * a PCI-PCI bridge card is used in either slot: total 5 buses.
- */
- num_buses = 5;
- break;
- case AltWPEG:
- /*
- * The Alternate Winnipeg controls the 2 133MHz buses [1 slot
- * each], their 2 "extra" buses, the 100MHz bus [2 slots] and
- * the "extra" buses for each of those slots: total 7 buses.
- */
- num_buses = 7;
- break;
- case LookOutAWPEG:
- case LookOutBWPEG:
- /*
- * A Lookout Winnipeg controls 3 100MHz buses [2 slots each]
- * & the "extra" buses for each of those slots: total 9 buses.
- */
- num_buses = 9;
- break;
- default:
- printk(KERN_INFO "%s: Unsupported Winnipeg type!\n", __func__);
- return last_bus;
- }
-
- for (bus = last_bus; bus < last_bus + num_buses; bus++)
- mp_bus_id_to_node[bus] = node;
- return bus;
-}
-
-static int __init build_detail_arrays(void)
-{
- unsigned long ptr;
- int i, scal_detail_size, rio_detail_size;
-
- if (rio_table_hdr->num_scal_dev > MAX_NUMNODES) {
- printk(KERN_WARNING "%s: MAX_NUMNODES too low! Defined as %d, but system has %d nodes.\n", __func__, MAX_NUMNODES, rio_table_hdr->num_scal_dev);
- return 0;
- }
-
- switch (rio_table_hdr->version) {
- default:
- printk(KERN_WARNING "%s: Invalid Rio Grande Table Version: %d\n", __func__, rio_table_hdr->version);
- return 0;
- case 2:
- scal_detail_size = 11;
- rio_detail_size = 13;
- break;
- case 3:
- scal_detail_size = 12;
- rio_detail_size = 15;
- break;
- }
-
- ptr = (unsigned long)rio_table_hdr + 3;
- for (i = 0; i < rio_table_hdr->num_scal_dev; i++, ptr += scal_detail_size)
- scal_devs[i] = (struct scal_detail *)ptr;
-
- for (i = 0; i < rio_table_hdr->num_rio_dev; i++, ptr += rio_detail_size)
- rio_devs[i] = (struct rio_detail *)ptr;
-
- return 1;
-}
-
-void __init setup_summit(void)
-{
- unsigned long ptr;
- unsigned short offset;
- int i, next_wpeg, next_bus = 0;
-
- /* The pointer to the EBDA is stored in the word @ phys 0x40E(40:0E) */
- ptr = get_bios_ebda();
- ptr = (unsigned long)phys_to_virt(ptr);
-
- rio_table_hdr = NULL;
- offset = 0x180;
- while (offset) {
- /* The block id is stored in the 2nd word */
- if (*((unsigned short *)(ptr + offset + 2)) == 0x4752) {
- /* set the pointer past the offset & block id */
- rio_table_hdr = (struct rio_table_hdr *)(ptr + offset + 4);
- break;
- }
- /* The next offset is stored in the 1st word. 0 means no more */
- offset = *((unsigned short *)(ptr + offset));
- }
- if (!rio_table_hdr) {
- printk(KERN_ERR "%s: Unable to locate Rio Grande Table in EBDA - bailing!\n", __func__);
- return;
- }
-
- if (!build_detail_arrays())
- return;
-
- /* The first Winnipeg we're looking for has an index of 0 */
- next_wpeg = 0;
- do {
- for (i = 0; i < rio_table_hdr->num_rio_dev; i++) {
- if (is_WPEG(rio_devs[i]) && rio_devs[i]->WP_index == next_wpeg) {
- /* It's the Winnipeg we're looking for! */
- next_bus = setup_pci_node_map_for_wpeg(i, next_bus);
- next_wpeg++;
- break;
- }
- }
- /*
- * If we go through all Rio devices and don't find one with
- * the next index, it means we've found all the Winnipegs,
- * and thus all the PCI buses.
- */
- if (i == rio_table_hdr->num_rio_dev)
- next_wpeg = 0;
- } while (next_wpeg != 0);
-}
-#endif
-
-struct apic apic_summit = {
-
- .name = "summit",
- .probe = probe_summit,
- .acpi_madt_oem_check = summit_acpi_madt_oem_check,
- .apic_id_registered = summit_apic_id_registered,
-
- .irq_delivery_mode = dest_LowestPrio,
- /* logical delivery broadcast to all CPUs: */
- .irq_dest_mode = 1,
-
- .target_cpus = summit_target_cpus,
- .disable_esr = 1,
- .dest_logical = APIC_DEST_LOGICAL,
- .check_apicid_used = summit_check_apicid_used,
- .check_apicid_present = summit_check_apicid_present,
-
- .vector_allocation_domain = summit_vector_allocation_domain,
- .init_apic_ldr = summit_init_apic_ldr,
-
- .ioapic_phys_id_map = summit_ioapic_phys_id_map,
- .setup_apic_routing = summit_setup_apic_routing,
- .multi_timer_check = NULL,
- .apicid_to_node = summit_apicid_to_node,
- .cpu_to_logical_apicid = summit_cpu_to_logical_apicid,
- .cpu_present_to_apicid = summit_cpu_present_to_apicid,
- .apicid_to_cpu_present = summit_apicid_to_cpu_present,
- .setup_portio_remap = NULL,
- .check_phys_apicid_present = summit_check_phys_apicid_present,
- .enable_apic_mode = NULL,
- .phys_pkg_id = summit_phys_pkg_id,
- .mps_oem_check = summit_mps_oem_check,
-
- .get_apic_id = summit_get_apic_id,
- .set_apic_id = NULL,
- .apic_id_mask = 0xFF << 24,
-
- .cpu_mask_to_apicid = summit_cpu_mask_to_apicid,
- .cpu_mask_to_apicid_and = summit_cpu_mask_to_apicid_and,
-
- .send_IPI_mask = summit_send_IPI_mask,
- .send_IPI_mask_allbutself = NULL,
- .send_IPI_allbutself = summit_send_IPI_allbutself,
- .send_IPI_all = summit_send_IPI_all,
- .send_IPI_self = default_send_IPI_self,
-
- .wakeup_cpu = NULL,
- .trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW,
- .trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH,
-
- .wait_for_init_deassert = default_wait_for_init_deassert,
-
- .smp_callin_clear_local_apic = NULL,
- .inquire_remote_apic = default_inquire_remote_apic,
-
- .read = native_apic_mem_read,
- .write = native_apic_mem_write,
- .icr_read = native_apic_icr_read,
- .icr_write = native_apic_icr_write,
- .wait_icr_idle = native_apic_wait_icr_idle,
- .safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
-};
projects / deliverable / linux.git / commitdiff
