forked from Minki/linux
66441bd3cf
In line with asm/e820/types.h, move the e820 API declarations to asm/e820/api.h and update all usage sites. This is just a mechanical, obviously correct move & replace patch, there will be subsequent changes to clean up the code and to make better use of the new header organization. Cc: Alex Thorlton <athorlton@sgi.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Huang, Ying <ying.huang@intel.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul Jackson <pj@sgi.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wei Yang <richard.weiyang@gmail.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
114 lines
2.8 KiB
C
114 lines
2.8 KiB
C
/*
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* ACPI 3.0 based NUMA setup
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* Copyright 2004 Andi Kleen, SuSE Labs.
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*
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* Reads the ACPI SRAT table to figure out what memory belongs to which CPUs.
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*
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* Called from acpi_numa_init while reading the SRAT and SLIT tables.
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* Assumes all memory regions belonging to a single proximity domain
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* are in one chunk. Holes between them will be included in the node.
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*/
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#include <linux/kernel.h>
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#include <linux/acpi.h>
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#include <linux/mmzone.h>
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#include <linux/bitmap.h>
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#include <linux/init.h>
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#include <linux/topology.h>
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#include <linux/mm.h>
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#include <asm/proto.h>
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#include <asm/numa.h>
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#include <asm/e820/api.h>
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#include <asm/apic.h>
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#include <asm/uv/uv.h>
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/* Callback for Proximity Domain -> x2APIC mapping */
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void __init
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acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
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{
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int pxm, node;
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int apic_id;
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if (srat_disabled())
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return;
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if (pa->header.length < sizeof(struct acpi_srat_x2apic_cpu_affinity)) {
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bad_srat();
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return;
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}
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if ((pa->flags & ACPI_SRAT_CPU_ENABLED) == 0)
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return;
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pxm = pa->proximity_domain;
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apic_id = pa->apic_id;
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if (!apic->apic_id_valid(apic_id)) {
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printk(KERN_INFO "SRAT: PXM %u -> X2APIC 0x%04x ignored\n",
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pxm, apic_id);
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return;
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}
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node = acpi_map_pxm_to_node(pxm);
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if (node < 0) {
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printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
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bad_srat();
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return;
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}
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if (apic_id >= MAX_LOCAL_APIC) {
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printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%04x -> Node %u skipped apicid that is too big\n", pxm, apic_id, node);
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return;
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}
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set_apicid_to_node(apic_id, node);
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node_set(node, numa_nodes_parsed);
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printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%04x -> Node %u\n",
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pxm, apic_id, node);
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}
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/* Callback for Proximity Domain -> LAPIC mapping */
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void __init
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acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
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{
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int pxm, node;
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int apic_id;
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if (srat_disabled())
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return;
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if (pa->header.length != sizeof(struct acpi_srat_cpu_affinity)) {
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bad_srat();
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return;
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}
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if ((pa->flags & ACPI_SRAT_CPU_ENABLED) == 0)
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return;
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pxm = pa->proximity_domain_lo;
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if (acpi_srat_revision >= 2)
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pxm |= *((unsigned int*)pa->proximity_domain_hi) << 8;
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node = acpi_map_pxm_to_node(pxm);
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if (node < 0) {
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printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
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bad_srat();
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return;
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}
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if (get_uv_system_type() >= UV_X2APIC)
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apic_id = (pa->apic_id << 8) | pa->local_sapic_eid;
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else
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apic_id = pa->apic_id;
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if (apic_id >= MAX_LOCAL_APIC) {
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printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%02x -> Node %u skipped apicid that is too big\n", pxm, apic_id, node);
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return;
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}
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set_apicid_to_node(apic_id, node);
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node_set(node, numa_nodes_parsed);
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printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%02x -> Node %u\n",
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pxm, apic_id, node);
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}
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int __init x86_acpi_numa_init(void)
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{
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int ret;
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ret = acpi_numa_init();
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if (ret < 0)
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return ret;
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return srat_disabled() ? -EINVAL : 0;
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}
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