diff options
Diffstat (limited to 'arch/x86/kernel/apic/numaq_32.c')
| -rw-r--r-- | arch/x86/kernel/apic/numaq_32.c | 524 |
1 files changed, 0 insertions, 524 deletions
diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c deleted file mode 100644 index 030ea1c04f72..000000000000 --- a/arch/x86/kernel/apic/numaq_32.c +++ /dev/null @@ -1,524 +0,0 @@ -/* - * 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/memblock.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> - -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; -}; - -static int mpc_record; - -static 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; - u64 start = (u64)(eq->hi_shrd_mem_start - eq->priv_mem_size) << 20; - u64 end = (u64)(eq->hi_shrd_mem_start + eq->hi_shrd_mem_size) << 20; - int ret; - - node_set(node, numa_nodes_parsed); - ret = numa_add_memblk(node, start, end); - BUG_ON(ret < 0); -} - -/* - * Function: smp_dump_qct() - * - * Description: gets memory layout from the quad config table. This - * function also updates numa_nodes_parsed 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); - - for_each_node(node) { - if (scd->quads_present31_0 & (1 << node)) - numaq_register_node(node, scd); - } -} - -void 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 void __init numaq_tsc_init(void) -{ - numaq_tsc_disable(); -} - -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; -} - -/* - * Called from mpparse code. - * mode = 0: prescan - * mode = 1: one mpc entry scanned - */ -static void numaq_mpc_record(unsigned int mode) -{ - if (!mode) - mpc_record = 0; - else - mpc_record++; -} - -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_table *mpc) -{ - struct mpc_oemtable *oemtable = (void *)(long)mpc->oemptr; - 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 __init void early_check_numaq(void) -{ - /* - * get boot-time SMP configuration: - */ - if (smp_found_config) - early_get_smp_config(); - - if (found_numaq) { - x86_init.mpparse.mpc_record = numaq_mpc_record; - x86_init.mpparse.setup_ioapic_ids = x86_init_noop; - x86_init.mpparse.mpc_apic_id = mpc_apic_id; - x86_init.mpparse.smp_read_mpc_oem = smp_read_mpc_oem; - x86_init.mpparse.mpc_oem_pci_bus = mpc_oem_pci_bus; - x86_init.mpparse.mpc_oem_bus_info = mpc_oem_bus_info; - x86_init.timers.tsc_pre_init = numaq_tsc_init; - x86_init.pci.init = pci_numaq_init; - } -} - -int __init numaq_numa_init(void) -{ - early_check_numaq(); - if (!found_numaq) - return -ENOENT; - smp_dump_qct(); - - return 0; -} - -#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 struct cpumask *numaq_target_cpus(void) -{ - return cpu_all_mask; -} - -static unsigned long numaq_check_apicid_used(physid_mask_t *map, int apicid) -{ - return physid_isset(apicid, *map); -} - -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 void numaq_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap) -{ - /* We don't have a good way to do this yet - hack */ - return physids_promote(0xFUL, retmap); -} - -/* - * 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 int numaq_numa_cpu_node(int cpu) -{ - int logical_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu); - - if (logical_apicid != BAD_APICID) - return numaq_apicid_to_node(logical_apicid); - return NUMA_NO_NODE; -} - -static void numaq_apicid_to_cpu_present(int logical_apicid, physid_mask_t *retmap) -{ - int node = numaq_apicid_to_node(logical_apicid); - int cpu = __ffs(logical_apicid & 0xf); - - physid_set_mask_of_physid(cpu + 4*node, retmap); -} - -/* Where the IO area was mapped on multiquad, always 0 otherwise */ -void *xquad_portio; - -static inline int numaq_check_phys_apicid_present(int phys_apicid) -{ - return 1; -} - -/* - * We use physical apicids here, not logical, so just return the default - * physical broadcast to stop people from breaking us - */ -static int -numaq_cpu_mask_to_apicid_and(const struct cpumask *cpumask, - const struct cpumask *andmask, - unsigned int *apicid) -{ - *apicid = 0x0F; - return 0; -} - -/* 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_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); -} - -/* Use __refdata to keep false positive warning calm. */ -static struct apic __refdata apic_numaq = { - - .name = "NUMAQ", - .probe = probe_numaq, - .acpi_madt_oem_check = NULL, - .apic_id_valid = default_apic_id_valid, - .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 = flat_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, - .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_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_secondary_cpu = wakeup_secondary_cpu_via_nmi, - .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 = false, - .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, - .eoi_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, - - .x86_32_early_logical_apicid = noop_x86_32_early_logical_apicid, - .x86_32_numa_cpu_node = numaq_numa_cpu_node, -}; - -apic_driver(apic_numaq); |