1 /* 2 * Copyright (c) 2009 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Sepherosa Ziehau <sepherosa@gmail.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/param.h> 36 #include <sys/bus.h> 37 #include <sys/kernel.h> 38 #include <sys/systm.h> 39 #include <vm/vm_page.h> 40 41 #include "acpi.h" 42 #include "acpi_sdt_var.h" 43 #include "acpi_sci_var.h" 44 45 extern int naps; 46 47 #define MADT_VPRINTF(fmt, arg...) \ 48 do { \ 49 if (bootverbose) \ 50 kprintf("ACPI MADT: " fmt , ##arg); \ 51 } while (0) 52 53 #define MADT_INT_BUS_ISA 0 54 55 typedef union srat_entry { 56 ACPI_SUBTABLE_HEADER head; 57 ACPI_SRAT_CPU_AFFINITY cpu; 58 ACPI_SRAT_MEM_AFFINITY mem; 59 ACPI_SRAT_X2APIC_CPU_AFFINITY x2apic; 60 ACPI_SRAT_GICC_AFFINITY gicc; 61 } srat_entry_t; 62 63 static void 64 srat_probe(void) 65 { 66 vm_paddr_t srat_paddr; 67 ACPI_TABLE_SRAT *srat; 68 srat_entry_t *mem; 69 srat_entry_t *cpu; 70 int error = 0; 71 int enabled = 1; 72 int disabled = 0; 73 74 /* 75 * Allow NUMA to be disabled by either setting kern.numa_disable 76 * to 1 or by setting hw.acpi.srat.enabled to 0. 77 */ 78 kgetenv_int("kern.numa_disable", &disabled); 79 kgetenv_int("hw.acpi.srat.enabled", &enabled); 80 if (disabled || enabled == 0) 81 return; 82 83 /* 84 * Map the SRAT if it exists 85 */ 86 srat_paddr = sdt_search(ACPI_SIG_SRAT); 87 if (srat_paddr == 0) { 88 kprintf("srat_probe: can't locate SRAT\n"); 89 return; 90 } 91 92 srat = sdt_sdth_map(srat_paddr); 93 KKASSERT(srat != NULL); 94 95 if (srat->Header.Length < sizeof(*srat)) { 96 kprintf("acpi: invalid SRAT length %u\n", 97 srat->Header.Length); 98 error = EINVAL; 99 goto done; 100 } 101 102 cpu = NULL; 103 104 for (mem = (srat_entry_t *)(srat + 1); 105 (char *)mem < (char *)srat + srat->Header.Length; 106 mem = (srat_entry_t *)((char *)mem + mem->head.Length)) { 107 /* 108 * Mem scan memory affinity only 109 */ 110 if (mem->head.Type != ACPI_SRAT_TYPE_MEMORY_AFFINITY) 111 continue; 112 if ((mem->mem.Flags & ACPI_SRAT_MEM_ENABLED) == 0) 113 continue; 114 115 kprintf("MemAffinity %016jx,%ldMB Prox=%u ", 116 mem->mem.BaseAddress, 117 mem->mem.Length / (1024 * 1024), 118 mem->mem.ProximityDomain); 119 120 /* 121 * Look for associated cpu affinity 122 */ 123 if (cpu == NULL || 124 mem->mem.ProximityDomain != cpu->cpu.ProximityDomainLo) { 125 for (cpu = (srat_entry_t *)(srat + 1); 126 (char *)cpu < (char *)srat + srat->Header.Length; 127 cpu = (srat_entry_t *)((char *)cpu + 128 cpu->head.Length)) { 129 if (cpu->head.Type != 130 ACPI_SRAT_TYPE_CPU_AFFINITY) 131 continue; 132 if ((cpu->cpu.Flags & 133 ACPI_SRAT_CPU_USE_AFFINITY) == 0) 134 continue; 135 if (mem->mem.ProximityDomain == 136 cpu->cpu.ProximityDomainLo) { 137 break; 138 } 139 } 140 if ((char *)cpu >= (char *)srat + srat->Header.Length) 141 cpu = NULL; 142 } 143 if (cpu) { 144 kprintf("CpuApicId %02x Socket %d\n", 145 cpu->cpu.ApicId, 146 get_chip_ID_from_APICID(cpu->cpu.ApicId)); 147 vm_numa_organize(mem->mem.BaseAddress, 148 mem->mem.Length, 149 get_chip_ID_from_APICID(cpu->cpu.ApicId)); 150 } else { 151 kprintf("(not found)\n"); 152 } 153 } 154 155 done: 156 sdt_sdth_unmap(&srat->Header); 157 } 158 159 SYSINIT(srat_probe, SI_BOOT2_NUMA, SI_ORDER_FIRST, srat_probe, 0); 160