From 6247943d8ab699b57653afd453a4940cca70ef8a Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Sun, 6 Jul 2008 11:42:11 -0700 Subject: x86: remove acpi_srat config v2 use ACPI_NUMA directly and move srat_32.c to mm/ Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/Kconfig | 5 - arch/x86/kernel/Makefile | 1 - arch/x86/kernel/srat_32.c | 280 ---------------------------------------------- arch/x86/mm/Makefile | 3 +- arch/x86/mm/srat_32.c | 280 ++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 282 insertions(+), 287 deletions(-) delete mode 100644 arch/x86/kernel/srat_32.c create mode 100644 arch/x86/mm/srat_32.c (limited to 'arch') diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index d8dddbc5e34..bb0c0d0f6db 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -455,11 +455,6 @@ config MEMTEST memtest=4, mean do 4 test patterns. If you are unsure how to answer this question, answer Y. -config ACPI_SRAT - def_bool y - depends on X86_32 && ACPI && NUMA && X86_GENERICARCH - select ACPI_NUMA - config X86_SUMMIT_NUMA def_bool y depends on X86_32 && NUMA && X86_GENERICARCH diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 212804e7878..54829e2b516 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -64,7 +64,6 @@ obj-$(CONFIG_X86_SUMMIT_NUMA) += summit_32.o obj-y += vsmp_64.o obj-$(CONFIG_KPROBES) += kprobes.o obj-$(CONFIG_MODULES) += module_$(BITS).o -obj-$(CONFIG_ACPI_SRAT) += srat_32.o obj-$(CONFIG_EFI) += efi.o efi_$(BITS).o efi_stub_$(BITS).o obj-$(CONFIG_DOUBLEFAULT) += doublefault_32.o obj-$(CONFIG_KGDB) += kgdb.o diff --git a/arch/x86/kernel/srat_32.c b/arch/x86/kernel/srat_32.c deleted file mode 100644 index f41d67f8f83..00000000000 --- a/arch/x86/kernel/srat_32.c +++ /dev/null @@ -1,280 +0,0 @@ -/* - * Some of the code in this file has been gleaned from the 64 bit - * discontigmem support code base. - * - * Copyright (C) 2002, 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 Pat Gaughen - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* - * proximity macros and definitions - */ -#define NODE_ARRAY_INDEX(x) ((x) / 8) /* 8 bits/char */ -#define NODE_ARRAY_OFFSET(x) ((x) % 8) /* 8 bits/char */ -#define BMAP_SET(bmap, bit) ((bmap)[NODE_ARRAY_INDEX(bit)] |= 1 << NODE_ARRAY_OFFSET(bit)) -#define BMAP_TEST(bmap, bit) ((bmap)[NODE_ARRAY_INDEX(bit)] & (1 << NODE_ARRAY_OFFSET(bit))) -/* bitmap length; _PXM is at most 255 */ -#define PXM_BITMAP_LEN (MAX_PXM_DOMAINS / 8) -static u8 __initdata pxm_bitmap[PXM_BITMAP_LEN]; /* bitmap of proximity domains */ - -#define MAX_CHUNKS_PER_NODE 3 -#define MAXCHUNKS (MAX_CHUNKS_PER_NODE * MAX_NUMNODES) -struct node_memory_chunk_s { - unsigned long start_pfn; - unsigned long end_pfn; - u8 pxm; // proximity domain of node - u8 nid; // which cnode contains this chunk? - u8 bank; // which mem bank on this node -}; -static struct node_memory_chunk_s __initdata node_memory_chunk[MAXCHUNKS]; - -static int __initdata num_memory_chunks; /* total number of memory chunks */ -static u8 __initdata apicid_to_pxm[MAX_APICID]; - -int numa_off __initdata; -int acpi_numa __initdata; - -static __init void bad_srat(void) -{ - printk(KERN_ERR "SRAT: SRAT not used.\n"); - acpi_numa = -1; - num_memory_chunks = 0; -} - -static __init inline int srat_disabled(void) -{ - return numa_off || acpi_numa < 0; -} - -/* Identify CPU proximity domains */ -void __init -acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *cpu_affinity) -{ - if (srat_disabled()) - return; - if (cpu_affinity->header.length != - sizeof(struct acpi_srat_cpu_affinity)) { - bad_srat(); - return; - } - - if ((cpu_affinity->flags & ACPI_SRAT_CPU_ENABLED) == 0) - return; /* empty entry */ - - /* mark this node as "seen" in node bitmap */ - BMAP_SET(pxm_bitmap, cpu_affinity->proximity_domain_lo); - - apicid_to_pxm[cpu_affinity->apic_id] = cpu_affinity->proximity_domain_lo; - - printk(KERN_DEBUG "CPU %02x in proximity domain %02x\n", - cpu_affinity->apic_id, cpu_affinity->proximity_domain_lo); -} - -/* - * Identify memory proximity domains and hot-remove capabilities. - * Fill node memory chunk list structure. - */ -void __init -acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *memory_affinity) -{ - unsigned long long paddr, size; - unsigned long start_pfn, end_pfn; - u8 pxm; - struct node_memory_chunk_s *p, *q, *pend; - - if (srat_disabled()) - return; - if (memory_affinity->header.length != - sizeof(struct acpi_srat_mem_affinity)) { - bad_srat(); - return; - } - - if ((memory_affinity->flags & ACPI_SRAT_MEM_ENABLED) == 0) - return; /* empty entry */ - - pxm = memory_affinity->proximity_domain & 0xff; - - /* mark this node as "seen" in node bitmap */ - BMAP_SET(pxm_bitmap, pxm); - - /* calculate info for memory chunk structure */ - paddr = memory_affinity->base_address; - size = memory_affinity->length; - - start_pfn = paddr >> PAGE_SHIFT; - end_pfn = (paddr + size) >> PAGE_SHIFT; - - - if (num_memory_chunks >= MAXCHUNKS) { - printk(KERN_WARNING "Too many mem chunks in SRAT." - " Ignoring %lld MBytes at %llx\n", - size/(1024*1024), paddr); - return; - } - - /* Insertion sort based on base address */ - pend = &node_memory_chunk[num_memory_chunks]; - for (p = &node_memory_chunk[0]; p < pend; p++) { - if (start_pfn < p->start_pfn) - break; - } - if (p < pend) { - for (q = pend; q >= p; q--) - *(q + 1) = *q; - } - p->start_pfn = start_pfn; - p->end_pfn = end_pfn; - p->pxm = pxm; - - num_memory_chunks++; - - printk(KERN_DEBUG "Memory range %08lx to %08lx (type %x)" - " in proximity domain %02x %s\n", - start_pfn, end_pfn, - memory_affinity->memory_type, - pxm, - ((memory_affinity->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) ? - "enabled and removable" : "enabled" ) ); -} - -/* Callback for SLIT parsing */ -void __init acpi_numa_slit_init(struct acpi_table_slit *slit) -{ -} - -void acpi_numa_arch_fixup(void) -{ -} -/* - * The SRAT table always lists ascending addresses, so can always - * assume that the first "start" address that you see is the real - * start of the node, and that the current "end" address is after - * the previous one. - */ -static __init void node_read_chunk(int nid, struct node_memory_chunk_s *memory_chunk) -{ - /* - * Only add present memory as told by the e820. - * There is no guarantee from the SRAT that the memory it - * enumerates is present at boot time because it represents - * *possible* memory hotplug areas the same as normal RAM. - */ - if (memory_chunk->start_pfn >= max_pfn) { - printk(KERN_INFO "Ignoring SRAT pfns: %08lx - %08lx\n", - memory_chunk->start_pfn, memory_chunk->end_pfn); - return; - } - if (memory_chunk->nid != nid) - return; - - if (!node_has_online_mem(nid)) - node_start_pfn[nid] = memory_chunk->start_pfn; - - if (node_start_pfn[nid] > memory_chunk->start_pfn) - node_start_pfn[nid] = memory_chunk->start_pfn; - - if (node_end_pfn[nid] < memory_chunk->end_pfn) - node_end_pfn[nid] = memory_chunk->end_pfn; -} - -int __init get_memcfg_from_srat(void) -{ - int i, j, nid; - - - if (srat_disabled()) - goto out_fail; - - if (num_memory_chunks == 0) { - printk(KERN_WARNING - "could not finy any ACPI SRAT memory areas.\n"); - goto out_fail; - } - - /* Calculate total number of nodes in system from PXM bitmap and create - * a set of sequential node IDs starting at zero. (ACPI doesn't seem - * to specify the range of _PXM values.) - */ - /* - * MCD - we no longer HAVE to number nodes sequentially. PXM domain - * numbers could go as high as 256, and MAX_NUMNODES for i386 is typically - * 32, so we will continue numbering them in this manner until MAX_NUMNODES - * approaches MAX_PXM_DOMAINS for i386. - */ - nodes_clear(node_online_map); - for (i = 0; i < MAX_PXM_DOMAINS; i++) { - if (BMAP_TEST(pxm_bitmap, i)) { - int nid = acpi_map_pxm_to_node(i); - node_set_online(nid); - } - } - BUG_ON(num_online_nodes() == 0); - - /* set cnode id in memory chunk structure */ - for (i = 0; i < num_memory_chunks; i++) - node_memory_chunk[i].nid = pxm_to_node(node_memory_chunk[i].pxm); - - printk(KERN_DEBUG "pxm bitmap: "); - for (i = 0; i < sizeof(pxm_bitmap); i++) { - printk(KERN_CONT "%02x ", pxm_bitmap[i]); - } - printk(KERN_CONT "\n"); - printk(KERN_DEBUG "Number of logical nodes in system = %d\n", - num_online_nodes()); - printk(KERN_DEBUG "Number of memory chunks in system = %d\n", - num_memory_chunks); - - for (i = 0; i < MAX_APICID; i++) - apicid_2_node[i] = pxm_to_node(apicid_to_pxm[i]); - - for (j = 0; j < num_memory_chunks; j++){ - struct node_memory_chunk_s * chunk = &node_memory_chunk[j]; - printk(KERN_DEBUG - "chunk %d nid %d start_pfn %08lx end_pfn %08lx\n", - j, chunk->nid, chunk->start_pfn, chunk->end_pfn); - node_read_chunk(chunk->nid, chunk); - e820_register_active_regions(chunk->nid, chunk->start_pfn, - min(chunk->end_pfn, max_pfn)); - } - - for_each_online_node(nid) { - unsigned long start = node_start_pfn[nid]; - unsigned long end = min(node_end_pfn[nid], max_pfn); - - memory_present(nid, start, end); - node_remap_size[nid] = node_memmap_size_bytes(nid, start, end); - } - return 1; -out_fail: - printk(KERN_ERR "failed to get NUMA memory information from SRAT" - " table\n"); - return 0; -} diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile index b7b3e4c7cfc..c107641cd39 100644 --- a/arch/x86/mm/Makefile +++ b/arch/x86/mm/Makefile @@ -13,5 +13,6 @@ obj-$(CONFIG_NUMA) += discontig_32.o else obj-$(CONFIG_NUMA) += numa_64.o obj-$(CONFIG_K8_NUMA) += k8topology_64.o -obj-$(CONFIG_ACPI_NUMA) += srat_64.o endif +obj-$(CONFIG_ACPI_NUMA) += srat_$(BITS).o + diff --git a/arch/x86/mm/srat_32.c b/arch/x86/mm/srat_32.c new file mode 100644 index 00000000000..f41d67f8f83 --- /dev/null +++ b/arch/x86/mm/srat_32.c @@ -0,0 +1,280 @@ +/* + * Some of the code in this file has been gleaned from the 64 bit + * discontigmem support code base. + * + * Copyright (C) 2002, 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 Pat Gaughen + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * proximity macros and definitions + */ +#define NODE_ARRAY_INDEX(x) ((x) / 8) /* 8 bits/char */ +#define NODE_ARRAY_OFFSET(x) ((x) % 8) /* 8 bits/char */ +#define BMAP_SET(bmap, bit) ((bmap)[NODE_ARRAY_INDEX(bit)] |= 1 << NODE_ARRAY_OFFSET(bit)) +#define BMAP_TEST(bmap, bit) ((bmap)[NODE_ARRAY_INDEX(bit)] & (1 << NODE_ARRAY_OFFSET(bit))) +/* bitmap length; _PXM is at most 255 */ +#define PXM_BITMAP_LEN (MAX_PXM_DOMAINS / 8) +static u8 __initdata pxm_bitmap[PXM_BITMAP_LEN]; /* bitmap of proximity domains */ + +#define MAX_CHUNKS_PER_NODE 3 +#define MAXCHUNKS (MAX_CHUNKS_PER_NODE * MAX_NUMNODES) +struct node_memory_chunk_s { + unsigned long start_pfn; + unsigned long end_pfn; + u8 pxm; // proximity domain of node + u8 nid; // which cnode contains this chunk? + u8 bank; // which mem bank on this node +}; +static struct node_memory_chunk_s __initdata node_memory_chunk[MAXCHUNKS]; + +static int __initdata num_memory_chunks; /* total number of memory chunks */ +static u8 __initdata apicid_to_pxm[MAX_APICID]; + +int numa_off __initdata; +int acpi_numa __initdata; + +static __init void bad_srat(void) +{ + printk(KERN_ERR "SRAT: SRAT not used.\n"); + acpi_numa = -1; + num_memory_chunks = 0; +} + +static __init inline int srat_disabled(void) +{ + return numa_off || acpi_numa < 0; +} + +/* Identify CPU proximity domains */ +void __init +acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *cpu_affinity) +{ + if (srat_disabled()) + return; + if (cpu_affinity->header.length != + sizeof(struct acpi_srat_cpu_affinity)) { + bad_srat(); + return; + } + + if ((cpu_affinity->flags & ACPI_SRAT_CPU_ENABLED) == 0) + return; /* empty entry */ + + /* mark this node as "seen" in node bitmap */ + BMAP_SET(pxm_bitmap, cpu_affinity->proximity_domain_lo); + + apicid_to_pxm[cpu_affinity->apic_id] = cpu_affinity->proximity_domain_lo; + + printk(KERN_DEBUG "CPU %02x in proximity domain %02x\n", + cpu_affinity->apic_id, cpu_affinity->proximity_domain_lo); +} + +/* + * Identify memory proximity domains and hot-remove capabilities. + * Fill node memory chunk list structure. + */ +void __init +acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *memory_affinity) +{ + unsigned long long paddr, size; + unsigned long start_pfn, end_pfn; + u8 pxm; + struct node_memory_chunk_s *p, *q, *pend; + + if (srat_disabled()) + return; + if (memory_affinity->header.length != + sizeof(struct acpi_srat_mem_affinity)) { + bad_srat(); + return; + } + + if ((memory_affinity->flags & ACPI_SRAT_MEM_ENABLED) == 0) + return; /* empty entry */ + + pxm = memory_affinity->proximity_domain & 0xff; + + /* mark this node as "seen" in node bitmap */ + BMAP_SET(pxm_bitmap, pxm); + + /* calculate info for memory chunk structure */ + paddr = memory_affinity->base_address; + size = memory_affinity->length; + + start_pfn = paddr >> PAGE_SHIFT; + end_pfn = (paddr + size) >> PAGE_SHIFT; + + + if (num_memory_chunks >= MAXCHUNKS) { + printk(KERN_WARNING "Too many mem chunks in SRAT." + " Ignoring %lld MBytes at %llx\n", + size/(1024*1024), paddr); + return; + } + + /* Insertion sort based on base address */ + pend = &node_memory_chunk[num_memory_chunks]; + for (p = &node_memory_chunk[0]; p < pend; p++) { + if (start_pfn < p->start_pfn) + break; + } + if (p < pend) { + for (q = pend; q >= p; q--) + *(q + 1) = *q; + } + p->start_pfn = start_pfn; + p->end_pfn = end_pfn; + p->pxm = pxm; + + num_memory_chunks++; + + printk(KERN_DEBUG "Memory range %08lx to %08lx (type %x)" + " in proximity domain %02x %s\n", + start_pfn, end_pfn, + memory_affinity->memory_type, + pxm, + ((memory_affinity->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) ? + "enabled and removable" : "enabled" ) ); +} + +/* Callback for SLIT parsing */ +void __init acpi_numa_slit_init(struct acpi_table_slit *slit) +{ +} + +void acpi_numa_arch_fixup(void) +{ +} +/* + * The SRAT table always lists ascending addresses, so can always + * assume that the first "start" address that you see is the real + * start of the node, and that the current "end" address is after + * the previous one. + */ +static __init void node_read_chunk(int nid, struct node_memory_chunk_s *memory_chunk) +{ + /* + * Only add present memory as told by the e820. + * There is no guarantee from the SRAT that the memory it + * enumerates is present at boot time because it represents + * *possible* memory hotplug areas the same as normal RAM. + */ + if (memory_chunk->start_pfn >= max_pfn) { + printk(KERN_INFO "Ignoring SRAT pfns: %08lx - %08lx\n", + memory_chunk->start_pfn, memory_chunk->end_pfn); + return; + } + if (memory_chunk->nid != nid) + return; + + if (!node_has_online_mem(nid)) + node_start_pfn[nid] = memory_chunk->start_pfn; + + if (node_start_pfn[nid] > memory_chunk->start_pfn) + node_start_pfn[nid] = memory_chunk->start_pfn; + + if (node_end_pfn[nid] < memory_chunk->end_pfn) + node_end_pfn[nid] = memory_chunk->end_pfn; +} + +int __init get_memcfg_from_srat(void) +{ + int i, j, nid; + + + if (srat_disabled()) + goto out_fail; + + if (num_memory_chunks == 0) { + printk(KERN_WARNING + "could not finy any ACPI SRAT memory areas.\n"); + goto out_fail; + } + + /* Calculate total number of nodes in system from PXM bitmap and create + * a set of sequential node IDs starting at zero. (ACPI doesn't seem + * to specify the range of _PXM values.) + */ + /* + * MCD - we no longer HAVE to number nodes sequentially. PXM domain + * numbers could go as high as 256, and MAX_NUMNODES for i386 is typically + * 32, so we will continue numbering them in this manner until MAX_NUMNODES + * approaches MAX_PXM_DOMAINS for i386. + */ + nodes_clear(node_online_map); + for (i = 0; i < MAX_PXM_DOMAINS; i++) { + if (BMAP_TEST(pxm_bitmap, i)) { + int nid = acpi_map_pxm_to_node(i); + node_set_online(nid); + } + } + BUG_ON(num_online_nodes() == 0); + + /* set cnode id in memory chunk structure */ + for (i = 0; i < num_memory_chunks; i++) + node_memory_chunk[i].nid = pxm_to_node(node_memory_chunk[i].pxm); + + printk(KERN_DEBUG "pxm bitmap: "); + for (i = 0; i < sizeof(pxm_bitmap); i++) { + printk(KERN_CONT "%02x ", pxm_bitmap[i]); + } + printk(KERN_CONT "\n"); + printk(KERN_DEBUG "Number of logical nodes in system = %d\n", + num_online_nodes()); + printk(KERN_DEBUG "Number of memory chunks in system = %d\n", + num_memory_chunks); + + for (i = 0; i < MAX_APICID; i++) + apicid_2_node[i] = pxm_to_node(apicid_to_pxm[i]); + + for (j = 0; j < num_memory_chunks; j++){ + struct node_memory_chunk_s * chunk = &node_memory_chunk[j]; + printk(KERN_DEBUG + "chunk %d nid %d start_pfn %08lx end_pfn %08lx\n", + j, chunk->nid, chunk->start_pfn, chunk->end_pfn); + node_read_chunk(chunk->nid, chunk); + e820_register_active_regions(chunk->nid, chunk->start_pfn, + min(chunk->end_pfn, max_pfn)); + } + + for_each_online_node(nid) { + unsigned long start = node_start_pfn[nid]; + unsigned long end = min(node_end_pfn[nid], max_pfn); + + memory_present(nid, start, end); + node_remap_size[nid] = node_memmap_size_bytes(nid, start, end); + } + return 1; +out_fail: + printk(KERN_ERR "failed to get NUMA memory information from SRAT" + " table\n"); + return 0; +} -- cgit v1.2.3-70-g09d2