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-rw-r--r--sys-utils/lscpu-arm.c371
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diff --git a/sys-utils/lscpu-arm.c b/sys-utils/lscpu-arm.c
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+/*
+ * lscpu-arm.c - ARM CPU identification tables
+ *
+ * Copyright (C) 2018 Riku Voipio <riku.voipio@iki.fi>
+ *
+ * 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 would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The information here is gathered from
+ * - ARM manuals
+ * - Linux kernel: arch/armX/include/asm/cputype.h
+ * - GCC sources: config/arch/arch-cores.def
+ * - Ancient wisdom
+ * - SMBIOS tables (if applicable)
+ */
+#include "lscpu.h"
+
+struct id_part {
+ const int id;
+ const char* name;
+};
+
+static const struct id_part arm_part[] = {
+ { 0x810, "ARM810" },
+ { 0x920, "ARM920" },
+ { 0x922, "ARM922" },
+ { 0x926, "ARM926" },
+ { 0x940, "ARM940" },
+ { 0x946, "ARM946" },
+ { 0x966, "ARM966" },
+ { 0xa20, "ARM1020" },
+ { 0xa22, "ARM1022" },
+ { 0xa26, "ARM1026" },
+ { 0xb02, "ARM11 MPCore" },
+ { 0xb36, "ARM1136" },
+ { 0xb56, "ARM1156" },
+ { 0xb76, "ARM1176" },
+ { 0xc05, "Cortex-A5" },
+ { 0xc07, "Cortex-A7" },
+ { 0xc08, "Cortex-A8" },
+ { 0xc09, "Cortex-A9" },
+ { 0xc0d, "Cortex-A17" }, /* Originally A12 */
+ { 0xc0f, "Cortex-A15" },
+ { 0xc0e, "Cortex-A17" },
+ { 0xc14, "Cortex-R4" },
+ { 0xc15, "Cortex-R5" },
+ { 0xc17, "Cortex-R7" },
+ { 0xc18, "Cortex-R8" },
+ { 0xc20, "Cortex-M0" },
+ { 0xc21, "Cortex-M1" },
+ { 0xc23, "Cortex-M3" },
+ { 0xc24, "Cortex-M4" },
+ { 0xc27, "Cortex-M7" },
+ { 0xc60, "Cortex-M0+" },
+ { 0xd01, "Cortex-A32" },
+ { 0xd03, "Cortex-A53" },
+ { 0xd04, "Cortex-A35" },
+ { 0xd05, "Cortex-A55" },
+ { 0xd06, "Cortex-A65" },
+ { 0xd07, "Cortex-A57" },
+ { 0xd08, "Cortex-A72" },
+ { 0xd09, "Cortex-A73" },
+ { 0xd0a, "Cortex-A75" },
+ { 0xd0b, "Cortex-A76" },
+ { 0xd0c, "Neoverse-N1" },
+ { 0xd0d, "Cortex-A77" },
+ { 0xd0e, "Cortex-A76AE" },
+ { 0xd13, "Cortex-R52" },
+ { 0xd20, "Cortex-M23" },
+ { 0xd21, "Cortex-M33" },
+ { 0xd40, "Neoverse-V1" },
+ { 0xd41, "Cortex-A78" },
+ { 0xd42, "Cortex-A78AE" },
+ { 0xd44, "Cortex-X1" },
+ { 0xd46, "Cortex-510" },
+ { 0xd47, "Cortex-710" },
+ { 0xd48, "Cortex-X2" },
+ { 0xd49, "Neoverse-N2" },
+ { 0xd4a, "Neoverse-E1" },
+ { 0xd4b, "Cortex-A78C" },
+ { -1, "unknown" },
+};
+
+static const struct id_part brcm_part[] = {
+ { 0x0f, "Brahma B15" },
+ { 0x100, "Brahma B53" },
+ { 0x516, "ThunderX2" },
+ { -1, "unknown" },
+};
+
+static const struct id_part dec_part[] = {
+ { 0xa10, "SA110" },
+ { 0xa11, "SA1100" },
+ { -1, "unknown" },
+};
+
+static const struct id_part cavium_part[] = {
+ { 0x0a0, "ThunderX" },
+ { 0x0a1, "ThunderX 88XX" },
+ { 0x0a2, "ThunderX 81XX" },
+ { 0x0a3, "ThunderX 83XX" },
+ { 0x0af, "ThunderX2 99xx" },
+ { -1, "unknown" },
+};
+
+static const struct id_part apm_part[] = {
+ { 0x000, "X-Gene" },
+ { -1, "unknown" },
+};
+
+static const struct id_part qcom_part[] = {
+ { 0x00f, "Scorpion" },
+ { 0x02d, "Scorpion" },
+ { 0x04d, "Krait" },
+ { 0x06f, "Krait" },
+ { 0x201, "Kryo" },
+ { 0x205, "Kryo" },
+ { 0x211, "Kryo" },
+ { 0x800, "Falkor V1/Kryo" },
+ { 0x801, "Kryo V2" },
+ { 0xc00, "Falkor" },
+ { 0xc01, "Saphira" },
+ { -1, "unknown" },
+};
+
+static const struct id_part samsung_part[] = {
+ { 0x001, "exynos-m1" },
+ { -1, "unknown" },
+};
+
+static const struct id_part nvidia_part[] = {
+ { 0x000, "Denver" },
+ { 0x003, "Denver 2" },
+ { 0x004, "Carmel" },
+ { -1, "unknown" },
+};
+
+static const struct id_part marvell_part[] = {
+ { 0x131, "Feroceon 88FR131" },
+ { 0x581, "PJ4/PJ4b" },
+ { 0x584, "PJ4B-MP" },
+ { -1, "unknown" },
+};
+
+static const struct id_part apple_part[] = {
+ { 0x022, "Icestorm" },
+ { 0x023, "Firestorm" },
+ { -1, "unknown" },
+};
+
+static const struct id_part faraday_part[] = {
+ { 0x526, "FA526" },
+ { 0x626, "FA626" },
+ { -1, "unknown" },
+};
+
+static const struct id_part intel_part[] = {
+ { 0x200, "i80200" },
+ { 0x210, "PXA250A" },
+ { 0x212, "PXA210A" },
+ { 0x242, "i80321-400" },
+ { 0x243, "i80321-600" },
+ { 0x290, "PXA250B/PXA26x" },
+ { 0x292, "PXA210B" },
+ { 0x2c2, "i80321-400-B0" },
+ { 0x2c3, "i80321-600-B0" },
+ { 0x2d0, "PXA250C/PXA255/PXA26x" },
+ { 0x2d2, "PXA210C" },
+ { 0x411, "PXA27x" },
+ { 0x41c, "IPX425-533" },
+ { 0x41d, "IPX425-400" },
+ { 0x41f, "IPX425-266" },
+ { 0x682, "PXA32x" },
+ { 0x683, "PXA930/PXA935" },
+ { 0x688, "PXA30x" },
+ { 0x689, "PXA31x" },
+ { 0xb11, "SA1110" },
+ { 0xc12, "IPX1200" },
+ { -1, "unknown" },
+};
+
+static const struct id_part fujitsu_part[] = {
+ { 0x001, "A64FX" },
+ { -1, "unknown" },
+};
+
+static const struct id_part hisi_part[] = {
+ { 0xd01, "Kunpeng-920" }, /* aka tsv110 */
+ { -1, "unknown" },
+};
+
+static const struct id_part ft_part[] = {
+ { 0x660, "FTC660" },
+ { 0x661, "FTC661" },
+ { 0x662, "FTC662" },
+ { 0x663, "FTC663" },
+ { -1, "unknown" },
+};
+
+static const struct id_part unknown_part[] = {
+ { -1, "unknown" },
+};
+
+struct hw_impl {
+ const int id;
+ const struct id_part *parts;
+ const char *name;
+};
+
+static const struct hw_impl hw_implementer[] = {
+ { 0x41, arm_part, "ARM" },
+ { 0x42, brcm_part, "Broadcom" },
+ { 0x43, cavium_part, "Cavium" },
+ { 0x44, dec_part, "DEC" },
+ { 0x46, fujitsu_part, "FUJITSU" },
+ { 0x48, hisi_part, "HiSilicon" },
+ { 0x49, unknown_part, "Infineon" },
+ { 0x4d, unknown_part, "Motorola/Freescale" },
+ { 0x4e, nvidia_part, "NVIDIA" },
+ { 0x50, apm_part, "APM" },
+ { 0x51, qcom_part, "Qualcomm" },
+ { 0x53, samsung_part, "Samsung" },
+ { 0x56, marvell_part, "Marvell" },
+ { 0x61, apple_part, "Apple" },
+ { 0x66, faraday_part, "Faraday" },
+ { 0x69, intel_part, "Intel" },
+ { 0x70, ft_part, "Phytium" },
+ { 0xc0, unknown_part, "Ampere" },
+ { -1, unknown_part, "unknown" },
+};
+
+static int parse_id(const char *str)
+{
+ int id;
+ char *end = NULL;
+
+ if (!str || strncmp(str, "0x",2) != 0)
+ return -EINVAL;
+
+ errno = 0;
+ id = (int) strtol(str, &end, 0);
+ if (errno || str == end)
+ return -EINVAL;
+
+ return id;
+}
+
+#define parse_model_id(_cxt) (parse_id((_cxt)->model))
+
+static inline int parse_implementer_id(struct lscpu_cputype *ct)
+{
+ if (ct->vendor_id)
+ return ct->vendor_id;
+ ct->vendor_id = parse_id(ct->vendor);
+ return ct->vendor_id;
+}
+
+/*
+ * Use model and vendor IDs to decode to human readable names.
+ */
+static int arm_ids_decode(struct lscpu_cputype *ct)
+{
+ int impl, part, j;
+ const struct id_part *parts = NULL;
+
+ impl = parse_implementer_id(ct);
+ if (impl <= 0)
+ return -EINVAL; /* no ARM or missing ID */
+
+ /* decode vendor */
+ for (j = 0; hw_implementer[j].id != -1; j++) {
+ if (hw_implementer[j].id == impl) {
+ parts = hw_implementer[j].parts;
+ free(ct->vendor);
+ ct->vendor = xstrdup(hw_implementer[j].name);
+ break;
+ }
+ }
+
+ /* decode model */
+ if (!parts)
+ goto done;
+
+ part = parse_model_id(ct);
+ if (part <= 0)
+ goto done;
+
+ for (j = 0; parts[j].id != -1; j++) {
+ if (parts[j].id == part) {
+ free(ct->modelname);
+ ct->modelname = xstrdup(parts[j].name);
+ break;
+ }
+ }
+done:
+ return 0;
+}
+
+/* use "rXpY" string as stepping */
+static int arm_rXpY_decode(struct lscpu_cputype *ct)
+{
+ int impl, revision, variant;
+ char *end = NULL;
+ char buf[8];
+
+ impl = parse_implementer_id(ct);
+
+ if (impl != 0x41 || !ct->revision || !ct->stepping)
+ return -EINVAL;
+
+ errno = 0;
+ revision = (int) strtol(ct->revision, &end, 10);
+ if (errno || ct->revision == end)
+ return -EINVAL;
+
+ errno = 0;
+ variant = (int) strtol(ct->stepping, &end, 0);
+ if (errno || ct->stepping == end)
+ return -EINVAL;
+
+ snprintf(buf, sizeof(buf), "r%dp%d", variant, revision);
+ free(ct->stepping);
+ ct->stepping = xstrdup(buf);
+
+ return 0;
+}
+
+static void arm_decode(struct lscpu_cxt *cxt, struct lscpu_cputype *ct)
+{
+ if (!cxt->noalive && access(_PATH_SYS_DMI, R_OK) == 0)
+ dmi_decode_cputype(ct);
+
+ arm_ids_decode(ct);
+ arm_rXpY_decode(ct);
+
+ if (!cxt->noalive && cxt->is_cluster)
+ ct->nr_socket_on_cluster = get_number_of_physical_sockets_from_dmi();
+}
+
+static int is_cluster_arm(struct lscpu_cxt *cxt)
+{
+ struct stat st;
+
+ if (!cxt->noalive
+ && strcmp(cxt->arch->name, "aarch64") == 0
+ && stat(_PATH_ACPI_PPTT, &st) < 0 && cxt->ncputypes == 1)
+ return 1;
+ else
+ return 0;
+}
+
+void lscpu_decode_arm(struct lscpu_cxt *cxt)
+{
+ size_t i;
+
+ cxt->is_cluster = is_cluster_arm(cxt);
+
+ for (i = 0; i < cxt->ncputypes; i++)
+ arm_decode(cxt, cxt->cputypes[i]);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 09:39:53 +0000