diff options
| -rw-r--r-- | arch/x86/kernel/setup_32.c | 36 | ||||
| -rw-r--r-- | arch/x86/kernel/srat_32.c | 200 | ||||
| -rw-r--r-- | include/asm-x86/acpi.h | 4 | ||||
| -rw-r--r-- | include/asm-x86/dmi.h | 8 |
4 files changed, 75 insertions, 173 deletions
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c index 90a2b857b4a7..7e06ecd83174 100644 --- a/arch/x86/kernel/setup_32.c +++ b/arch/x86/kernel/setup_32.c @@ -59,6 +59,7 @@ #include <asm/setup.h> #include <asm/arch_hooks.h> #include <asm/sections.h> +#include <asm/dmi.h> #include <asm/io_apic.h> #include <asm/ist.h> #include <asm/io.h> @@ -185,6 +186,12 @@ int bootloader_type; static unsigned int highmem_pages = -1; /* + * Early DMI memory + */ +int dmi_alloc_index; +char dmi_alloc_data[DMI_MAX_DATA]; + +/* * Setup options */ struct screen_info screen_info; @@ -775,6 +782,24 @@ void __init setup_arch(char **cmdline_p) max_pfn = e820_end_of_ram(); } + dmi_scan_machine(); + + io_delay_init(); + +#ifdef CONFIG_ACPI + /* + * Parse the ACPI tables for possible boot-time SMP configuration. + */ + acpi_boot_table_init(); +#endif + +#ifdef CONFIG_ACPI_NUMA + /* + * Parse SRAT to discover nodes. + */ + acpi_numa_init(); +#endif + max_low_pfn = setup_memory(); #ifdef CONFIG_ACPI_SLEEP @@ -841,10 +866,6 @@ void __init setup_arch(char **cmdline_p) paravirt_post_allocator_init(); - dmi_scan_machine(); - - io_delay_init(); - #ifdef CONFIG_X86_SMP /* * setup to use the early static init tables during kernel startup @@ -861,13 +882,6 @@ void __init setup_arch(char **cmdline_p) generic_apic_probe(); #endif -#ifdef CONFIG_ACPI - /* - * Parse the ACPI tables for possible boot-time SMP configuration. - */ - acpi_boot_table_init(); -#endif - early_quirks(); #ifdef CONFIG_ACPI diff --git a/arch/x86/kernel/srat_32.c b/arch/x86/kernel/srat_32.c index e9d91720a40f..5978023b799b 100644 --- a/arch/x86/kernel/srat_32.c +++ b/arch/x86/kernel/srat_32.c @@ -42,7 +42,7 @@ #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 pxm_bitmap[PXM_BITMAP_LEN]; /* bitmap of proximity domains */ +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) @@ -53,16 +53,37 @@ struct node_memory_chunk_s { u8 nid; // which cnode contains this chunk? u8 bank; // which mem bank on this node }; -static struct node_memory_chunk_s node_memory_chunk[MAXCHUNKS]; +static struct node_memory_chunk_s __initdata node_memory_chunk[MAXCHUNKS]; -static int num_memory_chunks; /* total number of memory chunks */ +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 */ -static void __init parse_cpu_affinity_structure(char *p) +void __init +acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *cpu_affinity) { - struct acpi_srat_cpu_affinity *cpu_affinity = - (struct acpi_srat_cpu_affinity *) p; + 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 */ @@ -80,14 +101,21 @@ static void __init parse_cpu_affinity_structure(char *p) * Identify memory proximity domains and hot-remove capabilities. * Fill node memory chunk list structure. */ -static void __init parse_memory_affinity_structure (char *sratp) +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; - struct acpi_srat_mem_affinity *memory_affinity = - (struct acpi_srat_mem_affinity *) sratp; + + 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 */ @@ -135,6 +163,14 @@ static void __init parse_memory_affinity_structure (char *sratp) "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 @@ -167,39 +203,13 @@ static __init void node_read_chunk(int nid, struct node_memory_chunk_s *memory_c node_end_pfn[nid] = memory_chunk->end_pfn; } -/* Parse the ACPI Static Resource Affinity Table */ -static int __init acpi20_parse_srat(struct acpi_table_srat *sratp) +int __init get_memcfg_from_srat(void) { - u8 *start, *end, *p; int i, j, nid; - start = (u8 *)(&(sratp->reserved) + 1); /* skip header */ - p = start; - end = (u8 *)sratp + sratp->header.length; - memset(pxm_bitmap, 0, sizeof(pxm_bitmap)); /* init proximity domain bitmap */ - memset(node_memory_chunk, 0, sizeof(node_memory_chunk)); - - num_memory_chunks = 0; - while (p < end) { - switch (*p) { - case ACPI_SRAT_TYPE_CPU_AFFINITY: - parse_cpu_affinity_structure(p); - break; - case ACPI_SRAT_TYPE_MEMORY_AFFINITY: - parse_memory_affinity_structure(p); - break; - default: - printk("ACPI 2.0 SRAT: unknown entry skipped: type=0x%02X, len=%d\n", p[0], p[1]); - break; - } - p += p[1]; - if (p[1] == 0) { - printk("acpi20_parse_srat: Entry length value is zero;" - " can't parse any further!\n"); - break; - } - } + if (srat_disabled()) + goto out_fail; if (num_memory_chunks == 0) { printk("could not finy any ACPI SRAT memory areas.\n"); @@ -248,7 +258,7 @@ static int __init acpi20_parse_srat(struct acpi_table_srat *sratp) 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); @@ -258,118 +268,6 @@ static int __init acpi20_parse_srat(struct acpi_table_srat *sratp) } return 1; out_fail: - return 0; -} - -struct acpi_static_rsdt { - struct acpi_table_rsdt table; - u32 padding[32]; /* Allow for 32 more table entries */ -}; - -int __init get_memcfg_from_srat(void) -{ - struct acpi_table_header *header = NULL; - struct acpi_table_rsdp *rsdp = NULL; - struct acpi_table_rsdt *rsdt = NULL; - acpi_native_uint rsdp_address = 0; - struct acpi_static_rsdt saved_rsdt; - int tables = 0; - int i = 0; - - rsdp_address = acpi_os_get_root_pointer(); - if (!rsdp_address) { - printk("%s: System description tables not found\n", - __func__); - goto out_err; - } - - printk("%s: assigning address to rsdp\n", __func__); - rsdp = (struct acpi_table_rsdp *)(u32)rsdp_address; - if (!rsdp) { - printk("%s: Didn't find ACPI root!\n", __func__); - goto out_err; - } - - printk(KERN_INFO "%.8s v%d [%.6s]\n", rsdp->signature, rsdp->revision, - rsdp->oem_id); - - if (strncmp(rsdp->signature, ACPI_SIG_RSDP,strlen(ACPI_SIG_RSDP))) { - printk(KERN_WARNING "%s: RSDP table signature incorrect\n", __func__); - goto out_err; - } - - rsdt = (struct acpi_table_rsdt *) - early_ioremap(rsdp->rsdt_physical_address, sizeof(saved_rsdt)); - - if (!rsdt) { - printk(KERN_WARNING - "%s: ACPI: Invalid root system description tables (RSDT)\n", - __func__); - goto out_err; - } - - header = &rsdt->header; - - if (strncmp(header->signature, ACPI_SIG_RSDT, strlen(ACPI_SIG_RSDT))) { - printk(KERN_WARNING "ACPI: RSDT signature incorrect\n"); - early_iounmap(rsdt, sizeof(saved_rsdt)); - goto out_err; - } - - /* - * The number of tables is computed by taking the - * size of all entries (header size minus total - * size of RSDT) divided by the size of each entry - * (4-byte table pointers). - */ - tables = (header->length - sizeof(struct acpi_table_header)) / sizeof(u32); - - if (!tables) - goto out_err; - - memcpy(&saved_rsdt, rsdt, sizeof(saved_rsdt)); - early_iounmap(rsdt, sizeof(saved_rsdt)); - if (saved_rsdt.table.header.length > sizeof(saved_rsdt)) { - printk(KERN_WARNING "ACPI: Too big length in RSDT: %d\n", - saved_rsdt.table.header.length); - goto out_err; - } - - printk("Begin SRAT table scan....%d\n", tables); - - for (i = 0; i < tables; i++){ - int result; - u32 length; - /* Map in header, then map in full table length. */ - header = (struct acpi_table_header *) - early_ioremap(saved_rsdt.table.table_offset_entry[i], sizeof(struct acpi_table_header)); - if (!header) - break; - - printk(KERN_INFO "ACPI: %4.4s %08lX, %04X\n", - header->signature, - (unsigned long)saved_rsdt.table.table_offset_entry[i], - header->length); - - if (strncmp((char *) &header->signature, ACPI_SIG_SRAT, 4)) { - early_iounmap(header, sizeof(struct acpi_table_header)); - continue; - } - - length = header->length; - early_iounmap(header, sizeof(struct acpi_table_header)); - header = (struct acpi_table_header *) - early_ioremap(saved_rsdt.table.table_offset_entry[i], length); - if (!header) - break; - - /* we've found the srat table. don't need to look at any more tables */ - result = acpi20_parse_srat((struct acpi_table_srat *)header); - early_iounmap(header, length); - return result; - } -out_err: - remove_all_active_ranges(); printk("failed to get NUMA memory information from SRAT table\n"); return 0; } diff --git a/include/asm-x86/acpi.h b/include/asm-x86/acpi.h index 73ce5b32443f..635d764dc13e 100644 --- a/include/asm-x86/acpi.h +++ b/include/asm-x86/acpi.h @@ -161,9 +161,7 @@ struct bootnode; #ifdef CONFIG_ACPI_NUMA extern int acpi_numa; extern int acpi_scan_nodes(unsigned long start, unsigned long end); -#ifdef CONFIG_X86_64 -# define NR_NODE_MEMBLKS (MAX_NUMNODES*2) -#endif +#define NR_NODE_MEMBLKS (MAX_NUMNODES*2) extern void acpi_fake_nodes(const struct bootnode *fake_nodes, int num_nodes); #else diff --git a/include/asm-x86/dmi.h b/include/asm-x86/dmi.h index 4edf7514a750..58a86571fe0f 100644 --- a/include/asm-x86/dmi.h +++ b/include/asm-x86/dmi.h @@ -3,12 +3,6 @@ #include <asm/io.h> -#ifdef CONFIG_X86_32 - -#define dmi_alloc alloc_bootmem - -#else /* CONFIG_X86_32 */ - #define DMI_MAX_DATA 2048 extern int dmi_alloc_index; @@ -25,8 +19,6 @@ static inline void *dmi_alloc(unsigned len) return dmi_alloc_data + idx; } -#endif - /* Use early IO mappings for DMI because it's initialized early */ #define dmi_ioremap early_ioremap #define dmi_iounmap early_iounmap |