x86, platforms: Remove NUMAQ

The NUMAQ support seems to be unmaintained, remove it.

Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: David Rientjes <rientjes@google.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/n/530CFD6C.7040705@zytor.com

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);