| /linux/Documentation/arch/x86/ |
| H A D | topology.rst | 68 The physical ID of the package. This information is retrieved via CPUID
148 specific CPUID leaves which enumerate the processor topology and the cache
151 The CPUID leaves in their preferred order of parsing for each x86 vendor is as
156 1) CPUID leaf 0x80000026 [Extended CPU Topology] (Core::X86::Cpuid::ExCpuTopology)
158 The extended CPUID leaf 0x80000026 is the extension of the CPUID leaf 0xB
163 CPUID level is >= 0x80000026 and then checking if `LogProcAtThisLevel`
174 CPUID leaf 0x80000026 also provides more information regarding the power
178 If CPUID leaf 0x80000026 is supported, further parsing is not required.
180 2) CPUID leaf 0x0000000B [Extended Topology Enumeration] (Core::X86::Cpuid::ExtTopEnum)
182 The extended CPUID leaf 0x0000000B is the predecessor on the extended
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| /linux/arch/riscv/kernel/ |
| H A D | smpboot.c | 46 int cpuid; in smp_prepare_cpus() local
60 for_each_possible_cpu(cpuid) { in smp_prepare_cpus()
61 if (cpuid == curr_cpuid) in smp_prepare_cpus()
63 set_cpu_present(cpuid, true); in smp_prepare_cpus()
64 numa_store_cpu_info(cpuid); in smp_prepare_cpus()
126 int cpuid = 1; in of_parse_and_init_cpus() local
140 if (cpuid >= NR_CPUS) { in of_parse_and_init_cpus()
141 pr_warn("Invalid cpuid [%d] for hartid [%lu]\n", in of_parse_and_init_cpus()
142 cpuid, hart); in of_parse_and_init_cpus()
146 cpuid_to_hartid_map(cpuid) = hart; in of_parse_and_init_cpus()
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| /linux/lib/zstd/common/ |
| H A D | cpu.h | 16 * Implementation taken from folly/CpuId.h
17 * https://github.com/facebook/folly/blob/master/folly/CpuId.h
36 /* The following block like the normal cpuid branch below, but gcc in ZSTD_cpuid()
43 "cpuid\n\t" in ZSTD_cpuid()
52 "cpuid\n\t" in ZSTD_cpuid()
60 "cpuid\n\t" in ZSTD_cpuid()
69 __asm__("cpuid" : "=a"(n) : "a"(0) : "ebx", "ecx", "edx"); in ZSTD_cpuid()
72 __asm__("cpuid" : "=a"(f1a), "=c"(f1c), "=d"(f1d) : "a"(1) : "ebx"); in ZSTD_cpuid()
76 __asm__("cpuid" in ZSTD_cpuid()
83 ZSTD_cpuid_t cpuid; in ZSTD_cpuid() local
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| /linux/arch/parisc/kernel/ |
| H A D | topology.c | 28 void store_cpu_topology(unsigned int cpuid) in store_cpu_topology() argument
30 struct cpu_topology *cpuid_topo = &cpu_topology[cpuid]; in store_cpu_topology()
40 per_cpu(cpu_devices, cpuid).hotpluggable = 1; in store_cpu_topology()
42 if (register_cpu(&per_cpu(cpu_devices, cpuid), cpuid)) in store_cpu_topology()
43 pr_warn("Failed to register CPU%d device", cpuid); in store_cpu_topology()
49 p = &per_cpu(cpu_data, cpuid); in store_cpu_topology()
53 if (cpu == cpuid) /* ignore current cpu */ in store_cpu_topology()
72 update_siblings_masks(cpuid); in store_cpu_topology()
75 cpuid, in store_cpu_topology()
76 cpu_topology[cpuid].core_id, in store_cpu_topology()
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| H A D | processor.c | 84 unsigned long cpuid; in processor_probe() local
103 cpuid = boot_cpu_data.cpu_count; in processor_probe()
105 cpu_info.cpu_num = cpu_info.cpu_loc = cpuid; in processor_probe()
136 cpuid, cpu_info.cpu_num, cpu_info.cpu_loc, in processor_probe()
141 /* We need contiguous numbers for cpuid. Firmware's notion in processor_probe()
142 * of cpuid is for physical CPUs and we just don't care yet. in processor_probe()
155 cpuid = cpu_info.cpu_num; in processor_probe()
161 p = &per_cpu(cpu_data, cpuid); in processor_probe()
165 if (cpuid) in processor_probe()
170 p->cpuid = cpuid; /* save CPU id */ in processor_probe()
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| /linux/arch/x86/boot/compressed/ |
| H A D | mem_encrypt.S | 23 movl $0x80000000, %eax /* CPUID to check the highest leaf */
24 cpuid
30 * CPUID Fn8000_001F[EAX] - Bit 1
31 * CPUID Fn8000_001F[EBX] - Bits 5:0
35 cpuid
57 * sev_es_req_cpuid - Request a CPUID value from the Hypervisor using
61 * @%edx: CPUID Function
64 * %edx returns CPUID value on success
99 /* Keep CPUID function in %ebx */
106 movl $0, %eax # Request CPUID[fn].EAX
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| /linux/drivers/soc/tegra/ |
| H A D | flowctrl.c | 51 u32 flowctrl_read_cpu_csr(unsigned int cpuid) in flowctrl_read_cpu_csr() argument
53 u8 offset = flowctrl_offset_cpu_csr[cpuid]; in flowctrl_read_cpu_csr()
62 void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value) in flowctrl_write_cpu_csr() argument
64 return flowctrl_update(flowctrl_offset_cpu_csr[cpuid], value); in flowctrl_write_cpu_csr()
67 void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value) in flowctrl_write_cpu_halt() argument
69 return flowctrl_update(flowctrl_offset_halt_cpu[cpuid], value); in flowctrl_write_cpu_halt()
72 void flowctrl_cpu_suspend_enter(unsigned int cpuid) in flowctrl_cpu_suspend_enter() argument
77 reg = flowctrl_read_cpu_csr(cpuid); in flowctrl_cpu_suspend_enter()
85 reg |= TEGRA20_FLOW_CTRL_CSR_WFE_CPU0 << cpuid; in flowctrl_cpu_suspend_enter()
106 reg |= TEGRA20_FLOW_CTRL_CSR_WFE_CPU0 << cpuid; in flowctrl_cpu_suspend_enter()
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| /linux/include/soc/tegra/ |
| H A D | flowctrl.h | 44 u32 flowctrl_read_cpu_csr(unsigned int cpuid);
45 void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value);
46 void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value);
48 void flowctrl_cpu_suspend_enter(unsigned int cpuid);
49 void flowctrl_cpu_suspend_exit(unsigned int cpuid);
51 static inline u32 flowctrl_read_cpu_csr(unsigned int cpuid) in flowctrl_read_cpu_csr() argument
56 static inline void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value) in flowctrl_write_cpu_csr() argument
60 static inline void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value) {} in flowctrl_write_cpu_halt() argument
62 static inline void flowctrl_cpu_suspend_enter(unsigned int cpuid) in flowctrl_cpu_suspend_enter() argument
66 static inline void flowctrl_cpu_suspend_exit(unsigned int cpuid) in flowctrl_cpu_suspend_exit() argument
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| /linux/drivers/dma/ |
| H A D | cv1800b-dmamux.c | 47 #define DMAMUX_INT_BIT(chid, cpuid) \ argument
48 BIT((cpuid) * DMAMUX_INT_BIT_PER_CPU + (chid))
49 #define DMAMUX_INTEN_BIT(cpuid) \ argument
50 DMAMUX_INT_BIT(8, cpuid)
51 #define DMAMUX_INT_CH_BIT(chid, cpuid) \ argument
52 (DMAMUX_INT_BIT(chid, cpuid) | DMAMUX_INTEN_BIT(cpuid))
57 #define DMAMUX_INT_CH_MASK(chid, cpuid) \ argument
58 (DMAMUX_INT_MASK(chid) | DMAMUX_INTEN_BIT(cpuid))
104 unsigned int chid, devid, cpuid; in cv1800_dmamux_route_allocate() local
113 cpuid = dma_spec->args[1]; in cv1800_dmamux_route_allocate()
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| /linux/rust/kernel/ |
| H A D | cpu.rs | 35 /// use kernel::cpu::CpuId;
40 /// let id = unsafe { CpuId::from_u32_unchecked(cpu) };
43 /// assert!(CpuId::from_i32(0).is_some());
44 /// assert!(CpuId::from_i32(-1).is_none());
47 pub struct CpuId(u32); struct
49 impl CpuId { implementation
50 /// Creates a new [`CpuId`] from the given `id` without checking bounds.
64 /// Creates a new [`CpuId`] from the given `id`, checking that it is valid.
74 /// Creates a new [`CpuId`] from the given `id` without checking bounds.
90 /// Creates a new [`CpuId`] fro
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| /linux/arch/x86/kvm/ |
| H A D | cpuid.c | 4 * cpuid support routines
24 #include <asm/cpuid/api.h>
25 #include "cpuid.h"
91 * KVM has a semi-arbitrary rule that querying the guest's CPUID model in kvm_find_cpuid_entry2()
92 * with IRQs disabled is disallowed. The CPUID model can legitimately in kvm_find_cpuid_entry2()
98 * of the hotpath, e.g. by caching information during CPUID updates. in kvm_find_cpuid_entry2()
119 * lookup (as opposed to emulating CPUID) for a function that's in kvm_find_cpuid_entry2()
172 /* Check whether the supplied CPUID data is equal to what is already set for the vCPU. */
180 * Apply runtime CPUID updates to the incoming CPUID entries to avoid in kvm_cpuid_check_equal()
183 * Note! @e2 and @nent track the _old_ CPUID entries! in kvm_cpuid_check_equal()
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| H A D | cpuid.h | 17 * Magic value used by KVM when querying userspace-provided CPUID entries and
21 * to avoid false positives when processing guest CPUID input.
42 int kvm_dev_ioctl_get_cpuid(struct kvm_cpuid2 *cpuid,
46 struct kvm_cpuid *cpuid,
49 struct kvm_cpuid2 *cpuid,
52 struct kvm_cpuid2 *cpuid,
97 const struct cpuid_reg cpuid = x86_feature_cpuid(x86_feature); in guest_cpuid_has() local
109 * honor userspace's CPUID), KVM needs to check the raw guest CPUID, in guest_cpuid_has()
117 entry = kvm_find_cpuid_entry_index(vcpu, cpuid.function, cpuid.index); in guest_cpuid_has()
121 reg = __cpuid_entry_get_reg(entry, cpuid.reg); in guest_cpuid_has()
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| H A D | reverse_cpuid.h | 23 /* Intel-defined SGX sub-features, CPUID level 0x12 (EAX). */
28 /* Intel-defined sub-features, CPUID level 0x00000007:1 (ECX) */
31 /* Intel-defined sub-features, CPUID level 0x00000007:1 (EDX) */
39 /* Intel-defined sub-features, CPUID level 0x00000007:2 (EDX) */
47 /* Intel-defined sub-features, CPUID level 0x00000024:0 (EBX) */
52 /* CPUID level 0x80000007 (EDX). */
55 /* CPUID level 0x80000022 (EAX) */
58 /* CPUID level 0x80000021 (ECX) */
97 * Reverse CPUID and its derivatives can only be used for hardware-defined
98 * feature words, i.e. words whose bits directly correspond to a CPUID leaf.
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| /linux/arch/alpha/kernel/ |
| H A D | smp.c | 69 /* Set to a secondary's cpuid when it comes online. */
81 smp_store_cpu_info(int cpuid) in smp_store_cpu_info() argument
83 cpu_data[cpuid].loops_per_jiffy = loops_per_jiffy; in smp_store_cpu_info()
84 cpu_data[cpuid].last_asn = ASN_FIRST_VERSION; in smp_store_cpu_info()
85 cpu_data[cpuid].need_new_asn = 0; in smp_store_cpu_info()
86 cpu_data[cpuid].asn_lock = 0; in smp_store_cpu_info()
93 smp_setup_percpu_timer(int cpuid) in smp_setup_percpu_timer() argument
95 cpu_data[cpuid].prof_counter = 1; in smp_setup_percpu_timer()
96 cpu_data[cpuid].prof_multiplier = 1; in smp_setup_percpu_timer()
100 wait_boot_cpu_to_stop(int cpuid) in wait_boot_cpu_to_stop() argument
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| /linux/drivers/firmware/arm_scmi/vendors/imx/ |
| H A D | imx-sm-cpu.c | 45 __le32 cpuid; member
66 u32 cpuid) in scmi_imx_cpu_validate_cpuid() argument
70 if (cpuid >= info->nr_cpu) in scmi_imx_cpu_validate_cpuid()
77 u32 cpuid, bool start) in scmi_imx_cpu_start() argument
83 ret = scmi_imx_cpu_validate_cpuid(ph, cpuid); in scmi_imx_cpu_start()
96 put_unaligned_le32(cpuid, t->tx.buf); in scmi_imx_cpu_start()
105 u32 cpuid, u64 vector, bool start, in scmi_imx_cpu_reset_vector_set() argument
112 ret = scmi_imx_cpu_validate_cpuid(ph, cpuid); in scmi_imx_cpu_reset_vector_set()
122 in->cpuid = cpu_to_le32(cpuid); in scmi_imx_cpu_reset_vector_set()
139 static int scmi_imx_cpu_started(const struct scmi_protocol_handle *ph, u32 cpuid, in scmi_imx_cpu_started() argument
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| /linux/arch/x86/kernel/ |
| H A D | cpuid.c | 9 * x86 CPUID access device
11 * This device is accessed by lseek() to the appropriate CPUID level
19 * This driver uses /dev/cpu/%d/cpuid where %d is the minor number, and on
111 return -EIO; /* CPUID not supported */ in cpuid_open()
128 return kasprintf(GFP_KERNEL, "cpu/%u/cpuid", MINOR(dev->devt)); in cpuid_devnode()
132 .name = "cpuid",
156 "cpu/cpuid", &cpuid_fops)) { in cpuid_init()
157 printk(KERN_ERR "cpuid: unable to get major %d for cpuid\n", in cpuid_init()
165 err = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "x86/cpuid:online", in cpuid_init()
176 __unregister_chrdev(CPUID_MAJOR, 0, NR_CPUS, "cpu/cpuid"); in cpuid_init()
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| /linux/arch/sparc/kernel/ |
| H A D | sun4d_smp.c | 45 static inline void show_leds(int cpuid) in show_leds() argument
47 cpuid &= 0x1e; in show_leds()
49 "r" ((cpu_leds[cpuid] << 4) | cpu_leds[cpuid+1]), in show_leds()
50 "r" (ECSR_BASE(cpuid) | BB_LEDS), in show_leds()
56 int cpuid = hard_smp_processor_id(); in sun4d_cpu_pre_starting() local
59 cpu_leds[cpuid] = 0x6; in sun4d_cpu_pre_starting()
60 show_leds(cpuid); in sun4d_cpu_pre_starting()
69 int cpuid; in sun4d_cpu_pre_online() local
71 cpuid = hard_smp_processor_id(); in sun4d_cpu_pre_online()
78 sun4d_swap((unsigned long *)&cpu_callin_map[cpuid], 1); in sun4d_cpu_pre_online()
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| H A D | sun4d_irq.c | 33 unsigned int cpuid; /* target cpu */ member
195 int cpuid = handler_data->cpuid; in sun4d_mask_irq() local
201 cc_set_imsk_other(cpuid, cc_get_imsk_other(cpuid) | (1 << real_irq)); in sun4d_mask_irq()
213 int cpuid = handler_data->cpuid; in sun4d_unmask_irq() local
220 cc_set_imsk_other(cpuid, cc_get_imsk_other(cpuid) & ~(1 << real_irq)); in sun4d_unmask_irq()
254 int cpuid = cpu_logical_map(1); in sun4d_distribute_irqs() local
256 if (cpuid == -1) in sun4d_distribute_irqs()
257 cpuid = cpu_logical_map(0); in sun4d_distribute_irqs()
261 board_to_cpu[board] = cpuid; in sun4d_distribute_irqs()
262 set_sbi_tid(devid, cpuid << 3); in sun4d_distribute_irqs()
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| H A D | smp_32.c | 179 int i, cpuid, extra; in smp_prepare_cpus() local
184 for (i = 0; !cpu_find_by_instance(i, NULL, &cpuid); i++) { in smp_prepare_cpus()
185 if (cpuid >= NR_CPUS) in smp_prepare_cpus()
239 int cpuid = hard_smp_processor_id(); in smp_prepare_boot_cpu() local
241 if (cpuid >= NR_CPUS) { in smp_prepare_boot_cpu()
245 if (cpuid != 0) in smp_prepare_boot_cpu()
248 current_thread_info()->cpu = cpuid; in smp_prepare_boot_cpu()
249 set_cpu_online(cpuid, true); in smp_prepare_boot_cpu()
250 set_cpu_possible(cpuid, true); in smp_prepare_boot_cpu()
311 unsigned int cpuid = hard_smp_processor_id(); in arch_cpu_pre_online() local
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| /linux/include/linux/firmware/imx/ |
| H A D | sm.h | 45 int scmi_imx_cpu_start(u32 cpuid, bool start);
46 int scmi_imx_cpu_started(u32 cpuid, bool *started);
47 int scmi_imx_cpu_reset_vector_set(u32 cpuid, u64 vector, bool start, bool boot,
50 static inline int scmi_imx_cpu_start(u32 cpuid, bool start) in scmi_imx_cpu_start() argument
55 static inline int scmi_imx_cpu_started(u32 cpuid, bool *started) in scmi_imx_cpu_started() argument
60 static inline int scmi_imx_cpu_reset_vector_set(u32 cpuid, u64 vector, bool start, in scmi_imx_cpu_reset_vector_set() argument
80 int scmi_imx_lmm_reset_vector_set(u32 lmid, u32 cpuid, u32 flags, u64 vector);
92 static inline int scmi_imx_lmm_reset_vector_set(u32 lmid, u32 cpuid, u32 flags, u64 vector) in scmi_imx_lmm_reset_vector_set() argument
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| /linux/drivers/firmware/imx/ |
| H A D | sm-cpu.c | 16 int scmi_imx_cpu_reset_vector_set(u32 cpuid, u64 vector, bool start, bool boot, in scmi_imx_cpu_reset_vector_set() argument
22 return imx_cpu_ops->cpu_reset_vector_set(ph, cpuid, vector, start, in scmi_imx_cpu_reset_vector_set()
27 int scmi_imx_cpu_start(u32 cpuid, bool start) in scmi_imx_cpu_start() argument
33 return imx_cpu_ops->cpu_start(ph, cpuid, true); in scmi_imx_cpu_start()
35 return imx_cpu_ops->cpu_start(ph, cpuid, false); in scmi_imx_cpu_start()
39 int scmi_imx_cpu_started(u32 cpuid, bool *started) in scmi_imx_cpu_started() argument
47 return imx_cpu_ops->cpu_started(ph, cpuid, started); in scmi_imx_cpu_started()
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| /linux/include/uapi/misc/ |
| H A D | amd-apml.h | 30 * CPUID input
31 * [0]...[3] cpuid func,
32 * [4][5] cpuid: thread
33 * [6] cpuid: ext function & read eax/ebx or ecx/edx
36 * CPUID output
40 * Status code for CPUID read
110 * The IOCTL provides userspace access to AMD sideband cpuid protocol
111 * - CPUID protocol to get CPU details for Function/Ext Function
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| /linux/arch/x86/boot/startup/ |
| H A D | sev-shared.c | 21 /* Copy of the SNP firmware's CPUID page. */
25 * These will be initialized based on CPUID table so that non-present
221 * directly rather than relying on the base size in the CPUID table.
252 * entries in the CPUID table were not present. This is not a valid in snp_cpuid_calc_xsave_size()
409 * Some hypervisors will avoid keeping track of CPUID entries in snp_cpuid()
413 * work using a single SNP CPUID table. in snp_cpuid()
417 * CPUID table entries are only a template that may need to be in snp_cpuid()
421 * within a valid CPUID range, proceed with post-processing in snp_cpuid()
440 * hypervisor and only the CPUID exit-code.
450 /* Only CPUID is supported via MSR protocol */ in do_vc_no_ghcb()
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| /linux/tools/testing/selftests/kvm/lib/x86/ |
| H A D | processor.c | 740 * Refresh CPUID after setting SREGS and XCR0, so that KVM's "runtime" in vm_arch_vcpu_add()
741 * updates to guest CPUID, e.g. for OSXSAVE and XSAVE state size, are in vm_arch_vcpu_add()
742 * reflected into selftests' vCPU CPUID cache, i.e. so that the cache in vm_arch_vcpu_add()
760 if (vcpu->cpuid) in vcpu_arch_free()
761 free(vcpu->cpuid); in vcpu_arch_free()
784 static uint32_t __kvm_cpu_has(const struct kvm_cpuid2 *cpuid, in __kvm_cpu_has() argument
791 for (i = 0; i < cpuid->nent; i++) { in __kvm_cpu_has()
792 entry = &cpuid->entries[i]; in __kvm_cpu_has()
806 bool kvm_cpuid_has(const struct kvm_cpuid2 *cpuid, in kvm_cpuid_has() argument
809 return __kvm_cpu_has(cpuid, feature.function, feature.index, in kvm_cpuid_has()
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| /linux/arch/loongarch/include/asm/ |
| H A D | numa.h | 25 extern void __init early_numa_add_cpu(int cpuid, s16 node);
33 static inline void set_cpuid_to_node(int cpuid, s16 node) in set_cpuid_to_node() argument
35 __cpuid_to_node[cpuid] = node; in set_cpuid_to_node()
42 static inline void early_numa_add_cpu(int cpuid, s16 node) { } in early_numa_add_cpu() argument
45 static inline void set_cpuid_to_node(int cpuid, s16 node) { } in set_cpuid_to_node() argument
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