^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * acpi_numa.c - ACPI NUMA support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2002 Takayoshi Kochi <t-kochi@bq.jp.nec.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #define pr_fmt(fmt) "ACPI: " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/memblock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/numa.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/nodemask.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/topology.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static nodemask_t nodes_found_map = NODE_MASK_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) /* maps to convert between proximity domain and logical node ID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) static int pxm_to_node_map[MAX_PXM_DOMAINS]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) = { [0 ... MAX_PXM_DOMAINS - 1] = NUMA_NO_NODE };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static int node_to_pxm_map[MAX_NUMNODES]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) = { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) unsigned char acpi_srat_revision __initdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static int acpi_numa __initdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) void __init disable_srat(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) acpi_numa = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) int pxm_to_node(int pxm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) if (pxm < 0 || pxm >= MAX_PXM_DOMAINS || numa_off)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) return NUMA_NO_NODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) return pxm_to_node_map[pxm];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) EXPORT_SYMBOL(pxm_to_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) int node_to_pxm(int node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) if (node < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) return PXM_INVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) return node_to_pxm_map[node];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static void __acpi_map_pxm_to_node(int pxm, int node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) if (pxm_to_node_map[pxm] == NUMA_NO_NODE || node < pxm_to_node_map[pxm])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) pxm_to_node_map[pxm] = node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) if (node_to_pxm_map[node] == PXM_INVAL || pxm < node_to_pxm_map[node])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) node_to_pxm_map[node] = pxm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) int acpi_map_pxm_to_node(int pxm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) int node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) if (pxm < 0 || pxm >= MAX_PXM_DOMAINS || numa_off)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) return NUMA_NO_NODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) node = pxm_to_node_map[pxm];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) if (node == NUMA_NO_NODE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (nodes_weight(nodes_found_map) >= MAX_NUMNODES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) return NUMA_NO_NODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) node = first_unset_node(nodes_found_map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) __acpi_map_pxm_to_node(pxm, node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) node_set(node, nodes_found_map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) return node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) EXPORT_SYMBOL(acpi_map_pxm_to_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static void __init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) acpi_table_print_srat_entry(struct acpi_subtable_header *header)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) switch (header->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) case ACPI_SRAT_TYPE_CPU_AFFINITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct acpi_srat_cpu_affinity *p =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) (struct acpi_srat_cpu_affinity *)header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) pr_debug("SRAT Processor (id[0x%02x] eid[0x%02x]) in proximity domain %d %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) p->apic_id, p->local_sapic_eid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) p->proximity_domain_lo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) (p->flags & ACPI_SRAT_CPU_ENABLED) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) "enabled" : "disabled");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) case ACPI_SRAT_TYPE_MEMORY_AFFINITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct acpi_srat_mem_affinity *p =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) (struct acpi_srat_mem_affinity *)header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) pr_debug("SRAT Memory (0x%llx length 0x%llx) in proximity domain %d %s%s%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) (unsigned long long)p->base_address,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) (unsigned long long)p->length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) p->proximity_domain,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) (p->flags & ACPI_SRAT_MEM_ENABLED) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) "enabled" : "disabled",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) (p->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) " hot-pluggable" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) (p->flags & ACPI_SRAT_MEM_NON_VOLATILE) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) " non-volatile" : "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) case ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct acpi_srat_x2apic_cpu_affinity *p =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) (struct acpi_srat_x2apic_cpu_affinity *)header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) pr_debug("SRAT Processor (x2apicid[0x%08x]) in proximity domain %d %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) p->apic_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) p->proximity_domain,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) (p->flags & ACPI_SRAT_CPU_ENABLED) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) "enabled" : "disabled");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) case ACPI_SRAT_TYPE_GICC_AFFINITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct acpi_srat_gicc_affinity *p =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) (struct acpi_srat_gicc_affinity *)header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) p->acpi_processor_uid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) p->proximity_domain,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) (p->flags & ACPI_SRAT_GICC_ENABLED) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) "enabled" : "disabled");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) case ACPI_SRAT_TYPE_GENERIC_AFFINITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) struct acpi_srat_generic_affinity *p =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) (struct acpi_srat_generic_affinity *)header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) if (p->device_handle_type == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) * For pci devices this may be the only place they
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * are assigned a proximity domain
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) pr_debug("SRAT Generic Initiator(Seg:%u BDF:%u) in proximity domain %d %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) *(u16 *)(&p->device_handle[0]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) *(u16 *)(&p->device_handle[2]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) p->proximity_domain,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) (p->flags & ACPI_SRAT_GENERIC_AFFINITY_ENABLED) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) "enabled" : "disabled");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) * In this case we can rely on the device having a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) * proximity domain reference
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) pr_debug("SRAT Generic Initiator(HID=%.8s UID=%.4s) in proximity domain %d %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) (char *)(&p->device_handle[0]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) (char *)(&p->device_handle[8]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) p->proximity_domain,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) (p->flags & ACPI_SRAT_GENERIC_AFFINITY_ENABLED) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) "enabled" : "disabled");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) header->type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) * A lot of BIOS fill in 10 (= no distance) everywhere. This messes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) * up the NUMA heuristics which wants the local node to have a smaller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * distance than the others.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) * Do some quick checks here and only use the SLIT if it passes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) static int __init slit_valid(struct acpi_table_slit *slit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) int d = slit->locality_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) for (i = 0; i < d; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) for (j = 0; j < d; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) u8 val = slit->entry[d*i + j];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) if (i == j) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) if (val != LOCAL_DISTANCE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) } else if (val <= LOCAL_DISTANCE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) void __init bad_srat(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) pr_err("SRAT: SRAT not used.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) disable_srat();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) int __init srat_disabled(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) return acpi_numa < 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) #if defined(CONFIG_X86) || defined(CONFIG_ARM64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * Callback for SLIT parsing. pxm_to_node() returns NUMA_NO_NODE for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) * I/O localities since SRAT does not list them. I/O localities are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) * not supported at this point.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) for (i = 0; i < slit->locality_count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) const int from_node = pxm_to_node(i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) if (from_node == NUMA_NO_NODE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) for (j = 0; j < slit->locality_count; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) const int to_node = pxm_to_node(j);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) if (to_node == NUMA_NO_NODE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) numa_set_distance(from_node, to_node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) slit->entry[slit->locality_count * i + j]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) * Default callback for parsing of the Proximity Domain <-> Memory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) * Area mappings
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) int __init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) u64 start, end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) u32 hotpluggable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) int node, pxm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) if (srat_disabled())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) if (ma->header.length < sizeof(struct acpi_srat_mem_affinity)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) pr_err("SRAT: Unexpected header length: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) ma->header.length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) goto out_err_bad_srat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) if (hotpluggable && !IS_ENABLED(CONFIG_MEMORY_HOTPLUG))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) start = ma->base_address;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) end = start + ma->length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) pxm = ma->proximity_domain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) if (acpi_srat_revision <= 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) pxm &= 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) node = acpi_map_pxm_to_node(pxm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) if (node == NUMA_NO_NODE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) pr_err("SRAT: Too many proximity domains.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) goto out_err_bad_srat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) if (numa_add_memblk(node, start, end) < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) pr_err("SRAT: Failed to add memblk to node %u [mem %#010Lx-%#010Lx]\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) node, (unsigned long long) start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) (unsigned long long) end - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) goto out_err_bad_srat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) node_set(node, numa_nodes_parsed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) pr_info("SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]%s%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) node, pxm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) (unsigned long long) start, (unsigned long long) end - 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) hotpluggable ? " hotplug" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) ma->flags & ACPI_SRAT_MEM_NON_VOLATILE ? " non-volatile" : "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) /* Mark hotplug range in memblock. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) if (hotpluggable && memblock_mark_hotplug(start, ma->length))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) pr_warn("SRAT: Failed to mark hotplug range [mem %#010Lx-%#010Lx] in memblock\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) (unsigned long long)start, (unsigned long long)end - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) max_possible_pfn = max(max_possible_pfn, PFN_UP(end - 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) out_err_bad_srat:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) bad_srat();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) out_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) #endif /* defined(CONFIG_X86) || defined (CONFIG_ARM64) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) static int __init acpi_parse_slit(struct acpi_table_header *table)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) struct acpi_table_slit *slit = (struct acpi_table_slit *)table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) if (!slit_valid(slit)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) pr_info("SLIT table looks invalid. Not used.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) acpi_numa_slit_init(slit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) void __init __weak
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) pr_warn("Found unsupported x2apic [0x%08x] SRAT entry\n", pa->apic_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) static int __init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) acpi_parse_x2apic_affinity(union acpi_subtable_headers *header,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) const unsigned long end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) struct acpi_srat_x2apic_cpu_affinity *processor_affinity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) processor_affinity = (struct acpi_srat_x2apic_cpu_affinity *)header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) acpi_table_print_srat_entry(&header->common);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) /* let architecture-dependent part to do it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) acpi_numa_x2apic_affinity_init(processor_affinity);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) static int __init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) acpi_parse_processor_affinity(union acpi_subtable_headers *header,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) const unsigned long end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) struct acpi_srat_cpu_affinity *processor_affinity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) processor_affinity = (struct acpi_srat_cpu_affinity *)header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) acpi_table_print_srat_entry(&header->common);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) /* let architecture-dependent part to do it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) acpi_numa_processor_affinity_init(processor_affinity);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) static int __init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) acpi_parse_gicc_affinity(union acpi_subtable_headers *header,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) const unsigned long end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) struct acpi_srat_gicc_affinity *processor_affinity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) processor_affinity = (struct acpi_srat_gicc_affinity *)header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) acpi_table_print_srat_entry(&header->common);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) /* let architecture-dependent part to do it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) acpi_numa_gicc_affinity_init(processor_affinity);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) #if defined(CONFIG_X86) || defined(CONFIG_ARM64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) static int __init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) acpi_parse_gi_affinity(union acpi_subtable_headers *header,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) const unsigned long end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) struct acpi_srat_generic_affinity *gi_affinity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) int node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) gi_affinity = (struct acpi_srat_generic_affinity *)header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) if (!gi_affinity)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) acpi_table_print_srat_entry(&header->common);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) if (!(gi_affinity->flags & ACPI_SRAT_GENERIC_AFFINITY_ENABLED))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) node = acpi_map_pxm_to_node(gi_affinity->proximity_domain);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) if (node == NUMA_NO_NODE || node >= MAX_NUMNODES) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) pr_err("SRAT: Too many proximity domains.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) node_set(node, numa_nodes_parsed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) node_set_state(node, N_GENERIC_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) static int __init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) acpi_parse_gi_affinity(union acpi_subtable_headers *header,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) const unsigned long end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) #endif /* defined(CONFIG_X86) || defined (CONFIG_ARM64) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) static int __initdata parsed_numa_memblks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) static int __init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) acpi_parse_memory_affinity(union acpi_subtable_headers * header,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) const unsigned long end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) struct acpi_srat_mem_affinity *memory_affinity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) memory_affinity = (struct acpi_srat_mem_affinity *)header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) acpi_table_print_srat_entry(&header->common);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) /* let architecture-dependent part to do it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) if (!acpi_numa_memory_affinity_init(memory_affinity))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) parsed_numa_memblks++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) static int __init acpi_parse_srat(struct acpi_table_header *table)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) struct acpi_table_srat *srat = (struct acpi_table_srat *)table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) acpi_srat_revision = srat->header.revision;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) /* Real work done in acpi_table_parse_srat below. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) static int __init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) acpi_table_parse_srat(enum acpi_srat_type id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) acpi_tbl_entry_handler handler, unsigned int max_entries)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) return acpi_table_parse_entries(ACPI_SIG_SRAT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) sizeof(struct acpi_table_srat), id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) handler, max_entries);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) int __init acpi_numa_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) int cnt = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) if (acpi_disabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) * Should not limit number with cpu num that is from NR_CPUS or nr_cpus=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) * SRAT cpu entries could have different order with that in MADT.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) * So go over all cpu entries in SRAT to get apicid to node mapping.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) /* SRAT: System Resource Affinity Table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) struct acpi_subtable_proc srat_proc[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) memset(srat_proc, 0, sizeof(srat_proc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) srat_proc[0].id = ACPI_SRAT_TYPE_CPU_AFFINITY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) srat_proc[0].handler = acpi_parse_processor_affinity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) srat_proc[1].id = ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) srat_proc[1].handler = acpi_parse_x2apic_affinity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) srat_proc[2].id = ACPI_SRAT_TYPE_GICC_AFFINITY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) srat_proc[2].handler = acpi_parse_gicc_affinity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) srat_proc[3].id = ACPI_SRAT_TYPE_GENERIC_AFFINITY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) srat_proc[3].handler = acpi_parse_gi_affinity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) acpi_table_parse_entries_array(ACPI_SIG_SRAT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) sizeof(struct acpi_table_srat),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) srat_proc, ARRAY_SIZE(srat_proc), 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) cnt = acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) acpi_parse_memory_affinity, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) /* SLIT: System Locality Information Table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) acpi_table_parse(ACPI_SIG_SLIT, acpi_parse_slit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) if (cnt < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) return cnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) else if (!parsed_numa_memblks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) return -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) static int acpi_get_pxm(acpi_handle h)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) unsigned long long pxm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) acpi_handle handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) acpi_handle phandle = h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) handle = phandle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) status = acpi_evaluate_integer(handle, "_PXM", NULL, &pxm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) if (ACPI_SUCCESS(status))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) return pxm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) status = acpi_get_parent(handle, &phandle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) } while (ACPI_SUCCESS(status));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) int acpi_get_node(acpi_handle handle)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) int pxm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) pxm = acpi_get_pxm(handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) return pxm_to_node(pxm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) EXPORT_SYMBOL(acpi_get_node);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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