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/linux-6.15/drivers/cpufreq/
Dlongrun.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
23 * performance_pctg = (current_freq - low_freq)/(high_freq - low_freq)
29 * longrun_get_policy - get the current LongRun policy
40 pr_debug("longrun flags are %x - %x\n", msr_lo, msr_hi); in longrun_get_policy()
42 policy->policy = CPUFREQ_POLICY_PERFORMANCE; in longrun_get_policy()
44 policy->policy = CPUFREQ_POLICY_POWERSAVE; in longrun_get_policy()
47 pr_debug("longrun ctrl is %x - %x\n", msr_lo, msr_hi); in longrun_get_policy()
53 policy->min = policy->max = longrun_high_freq; in longrun_get_policy()
55 policy->min = longrun_low_freq + msr_lo * in longrun_get_policy()
[all …]
Dpowernow-k8.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * (c) 2003-2006 Advanced Micro Devices, Inc.
9 u32 numps; /* number of p-states */
10 u32 batps; /* number of p-states supported on battery */
13 * vid/fid pairings, but are modified during the ->target() call
36 * handle hotplug events - so just point at cpufreq pol->cpus
53 /* Model Specific Registers for p-state transitions. MSRs are 64-bit. For */
54 /* writes (wrmsr - opcode 0f 30), the register number is placed in ecx, and */
55 /* the value to write is placed in edx:eax. For reads (rdmsr - opcode 0f 32), */
56 /* the register number is placed in ecx, and the data is returned in edx:eax. */
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Dpowernow-k7.c1 // SPDX-License-Identifier: GPL-2.0-only
10 * - We cli/sti on stepping A0 CPUs around the FID/VID transition.
13 * - We disable half multipliers if ACPI is used on A0 stepping CPUs.
38 #include "powernow-k7.h"
69 /* divide by 1000 to get VCore voltage in V. */
74 1075, 1050, 1025, 1000, 975, 950, 925, 0,
82 150, 225, 160, 165, 170, 180, -1, -1,
95 static unsigned int minimum_speed = -1;
105 unsigned int f = fsb / 1000; in check_fsb()
107 delta = (fsbspeed > f) ? fsbspeed - f : f - fsbspeed; in check_fsb()
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Dpowernow-k8.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * (c) 2003-2012 Advanced Micro Devices, Inc.
8 * Based on the powernow-k7.c module written by Dave Jones.
48 #include "powernow-k8.h"
66 return 1000 * find_freq_from_fid(fid); in find_khz_freq_from_fid()
112 data->currvid = hi & MSR_S_HI_CURRENT_VID; in query_current_values_with_pending_wait()
113 data->currfid = lo & MSR_S_LO_CURRENT_FID; in query_current_values_with_pending_wait()
121 udelay((1 << data->irt) * 10); in count_off_irt()
127 udelay(data->vstable * VST_UNITS_20US); in count_off_vst()
149 u32 savevid = data->currvid; in write_new_fid()
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/linux-6.15/Documentation/devicetree/bindings/arm/
Dcalxeda.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Rob Herring <robh@kernel.org>
12 Bindings for boards with Calxeda Cortex-A9 based ECX-1000 (Highbank) SOC
13 or Cortex-A15 based ECX-2000 SOCs
20 - enum:
21 - calxeda,highbank
22 - calxeda,ecx-2000
/linux-6.15/arch/x86/kernel/cpu/
Dvmware.c20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
49 #define STEALCLOCK_NOT_AVAILABLE (-1)
57 /* only for little-endian */
132 u32 eax, ebx, ecx; in __vmware_platform() local
134 eax = vmware_hypercall3(VMWARE_CMD_GETVERSION, 0, &ebx, &ecx); in __vmware_platform()
155 early_param("no-vmw-sched-clock", setup_vmw_sched_clock);
162 early_param("no-steal-acc", parse_no_stealacc);
170 ns -= vmware_cyc2ns.cyc2ns_offset; in vmware_sched_clock()
179 clocks_calc_mult_shift(&d->cyc2ns_mul, &d->cyc2ns_shift, in vmware_cyc2ns_setup()
181 d->cyc2ns_offset = mul_u64_u32_shr(tsc_now, d->cyc2ns_mul, in vmware_cyc2ns_setup()
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Dmshyperv.c1 // SPDX-License-Identifier: GPL-2.0-only
48 return reg - HV_X64_MSR_SINT0 + HV_X64_MSR_NESTED_SINT0; in hv_get_nested_msr()
150 * Routines to do per-architecture handling of stimer0
239 * Hyper-V clock counter resets during hibernation. Save and restore clock
256 * - reference counter (time) now. in restore_hv_clock_tsc_state()
258 hv_adj_sched_clock_offset(hv_ref_counter_at_suspend - hv_read_reference_counter()); in restore_hv_clock_tsc_state()
263 * functions of x86_platform. The Hyper-V clock counter is reset during
264 * suspend-resume and the offset used to measure time needs to be
323 * Prior to WS2016 Debug-VM sends NMIs to all CPUs which makes
329 static atomic_t nmi_cpu = ATOMIC_INIT(-1); in hv_nmi_unknown()
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/linux-6.15/arch/arm/mach-highbank/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 bool "Calxeda ECX-1000/2000 (Highbank/Midway)"
/linux-6.15/arch/x86/kernel/cpu/resctrl/
Dinternal.h1 /* SPDX-License-Identifier: GPL-2.0 */
18 #define CQM_LIMBOCHECK_INTERVAL 1000
21 #define MBM_OVERFLOW_INTERVAL 1000
33 #define MBM_CNTR_WIDTH_OFFSET_MAX (62 - MBM_CNTR_WIDTH_BASE)
36 * cpumask_any_housekeeping() - Choose any CPU in @mask, preferring those that
86 struct kernfs_fs_context *kfc = fc->fs_private; in rdt_fc2context()
92 * struct mon_evt - Entry in the event list of a resource
96 * @list: entry in &rdt_resource->evt_list
106 * union mon_data_bits - Monitoring details for each event file.
130 * struct rmid_read - Data passed across smp_call*() to read event count.
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/linux-6.15/tools/testing/selftests/kvm/include/x86/
Dprocessor.h1 /* SPDX-License-Identifier: GPL-2.0-only */
13 #include <asm/msr-index.h>
105 * Pack the information into a 64-bit value so that each X86_FEATURE_XXX can be
134 #define X86_FEATURE_MWAIT KVM_X86_CPU_FEATURE(0x1, 0, ECX, 3)
135 #define X86_FEATURE_VMX KVM_X86_CPU_FEATURE(0x1, 0, ECX, 5)
136 #define X86_FEATURE_SMX KVM_X86_CPU_FEATURE(0x1, 0, ECX, 6)
137 #define X86_FEATURE_PDCM KVM_X86_CPU_FEATURE(0x1, 0, ECX, 15)
138 #define X86_FEATURE_PCID KVM_X86_CPU_FEATURE(0x1, 0, ECX, 17)
139 #define X86_FEATURE_X2APIC KVM_X86_CPU_FEATURE(0x1, 0, ECX, 21)
140 #define X86_FEATURE_MOVBE KVM_X86_CPU_FEATURE(0x1, 0, ECX, 22)
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/linux-6.15/drivers/thermal/intel/
Dx86_pkg_temp_thermal.c1 // SPDX-License-Identifier: GPL-2.0-only
93 * - cpu hotplug: Read serialized by cpu hotplug lock
96 * - Other callsites: Must hold pkg_temp_lock
112 ret = intel_tcc_get_temp(zonedev->cpu, &val, true); in sys_get_curr_temp()
116 *temp = val * 1000; in sys_get_curr_temp()
126 unsigned int trip_index = THERMAL_TRIP_PRIV_TO_INT(trip->priv); in sys_set_trip_temp()
130 tj_max = intel_tcc_get_tjmax(zonedev->cpu); in sys_set_trip_temp()
133 tj_max *= 1000; in sys_set_trip_temp()
135 val = (tj_max - temp)/1000; in sys_set_trip_temp()
138 return -EINVAL; in sys_set_trip_temp()
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/linux-6.15/tools/power/x86/x86_energy_perf_policy/
Dx86_energy_perf_policy.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * x86_energy_perf_policy -- set the energy versus performance
7 * Copyright (c) 2010 - 2017 Intel Corporation.
30 #define OPTARG_NORMAL (INT_MAX - 1)
31 #define OPTARG_POWER (INT_MAX - 2)
32 #define OPTARG_BALANCE_POWER (INT_MAX - 3)
33 #define OPTARG_BALANCE_PERFORMANCE (INT_MAX - 4)
34 #define OPTARG_PERFORMANCE (INT_MAX - 5)
103 fprintf(stderr, "scope: --cpu cpu-list [--hwp-use-pkg #] | --pkg pkg-list\n"); in usage()
104 fprintf(stderr, "field: --all | --epb | --hwp-epp | --hwp-min | --hwp-max | --hwp-desired\n"); in usage()
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/linux-6.15/drivers/idle/
Dintel_idle.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * intel_idle.c - native hardware idle loop for modern Intel processors
5 * Copyright (c) 2013 - 2020, Intel Corporation.
23 * for preventing entry into deep C-states
25 * CPU will flush caches as needed when entering a C-state via MWAIT
33 * ACPI has a .suspend hack to turn off deep c-statees during suspend
39 /* un-comment DEBUG to enable pr_debug() statements */
56 #include <asm/intel-family.h>
58 #include <asm/spec-ctrl.h>
70 static int max_cstate = CPUIDLE_STATE_MAX - 1;
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/linux-6.15/drivers/video/fbdev/
Duvesafb.c1 // SPDX-License-Identifier: GPL-2.0-only
80 if (msg->seq >= UVESAFB_TASKS_MAX) in uvesafb_cn_callback()
84 task = uvfb_tasks[msg->seq]; in uvesafb_cn_callback()
86 if (!task || msg->ack != task->ack) { in uvesafb_cn_callback()
91 utask = (struct uvesafb_task *)msg->data; in uvesafb_cn_callback()
94 if (task->t.buf_len < utask->buf_len || in uvesafb_cn_callback()
95 utask->buf_len > msg->len - sizeof(*utask)) { in uvesafb_cn_callback()
100 uvfb_tasks[msg->seq] = NULL; in uvesafb_cn_callback()
103 memcpy(&task->t, utask, sizeof(*utask)); in uvesafb_cn_callback()
105 if (task->t.buf_len && task->buf) in uvesafb_cn_callback()
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Dvesafb.c1 // SPDX-License-Identifier: GPL-2.0-only
8 * (c) 1998 Gerd Knorr <kraxel@goldbach.in-berlin.de>
31 /* --------------------------------------------------------------------- */
43 .height = -1,
44 .width = -1,
68 /* --------------------------------------------------------------------- */
76 offset = (var->yoffset * info->fix.line_length + var->xoffset) / 4; in vesafb_pan_display()
83 "c" (offset), /* ECX */ in vesafb_pan_display()
93 int shift = 16 - depth; in vesa_setpalette()
94 int err = -EINVAL; in vesa_setpalette()
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/linux-6.15/tools/power/x86/turbostat/
Dturbostat.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * turbostat -- show CPU frequency and C-state residency
19 #define VFM_MODEL_MASK GENMASK(VFM_FAMILY_BIT - 1, VFM_MODEL_BIT)
20 #define VFM_FAMILY_MASK GENMASK(VFM_VENDOR_BIT - 1, VFM_FAMILY_BIT)
21 #define VFM_VENDOR_MASK GENMASK(VFM_RSVD_BIT - 1, VFM_VENDOR_BIT)
75 * 1. built-in only, the sysfs counters are not here -- we learn of those at run-time
77 * matching on them for --show and --hide.
82 * Usually truncated to 7 characters, but also handles 18 columns for raw 64-bit counters
98 #define ROUND_UP_TO_PAGE_SIZE(n) (((n) + 0x1000UL-1UL) & ~(0x1000UL-1UL))
433 …bool has_per_core_rapl; /* Indicates cores energy collection is per-core, not per-package. AMD spe…
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/linux-6.15/drivers/hwmon/
Ddell-smm-hwmon.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * dell-smm-hwmon.c -- Linux driver for accessing the SMM BIOS on Dell laptops.
9 * Copyright (C) 2013, 2014 Guenter Roeck <linux@roeck-us.net>
59 #define I8K_FAN_RPM_THRESHOLD 1000
72 #define DELL_SMM_WMI_GUID "F1DDEE52-063C-4784-A11E-8A06684B9B01"
81 unsigned int ecx; member
191 return -EBUSY; in i8k_smm_func()
197 "+a" (regs->eax), in i8k_smm_func()
198 "+b" (regs->ebx), in i8k_smm_func()
199 "+c" (regs->ecx), in i8k_smm_func()
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Dfam15h_power.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * fam15h_power.c - AMD Family 15h processor power monitoring
5 * Copyright (c) 2011-2016 Advanced Micro Devices, Inc.
11 #include <linux/hwmon-sysfs.h>
43 #define MAX_INTERVAL 1000
78 struct pci_dev *f4 = data->pdev; in power1_input_show()
80 pci_bus_read_config_dword(f4->bus, PCI_DEVFN(PCI_SLOT(f4->devfn), 5), in power1_input_show()
97 pci_bus_read_config_dword(f4->bus, PCI_DEVFN(PCI_SLOT(f4->devfn), 5), in power1_input_show()
110 data->base_tdp)) << running_avg_range; in power1_input_show()
111 curr_pwr_watts -= running_avg_capture; in power1_input_show()
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/linux-6.15/arch/x86/kernel/
Dtsc.c1 // SPDX-License-Identifier: GPL-2.0-only
42 #define KHZ 1000
83 data->cyc2ns_offset = this_cpu_read(cyc2ns.data[idx].cyc2ns_offset); in __cyc2ns_read()
84 data->cyc2ns_mul = this_cpu_read(cyc2ns.data[idx].cyc2ns_mul); in __cyc2ns_read()
85 data->cyc2ns_shift = this_cpu_read(cyc2ns.data[idx].cyc2ns_shift); in __cyc2ns_read()
116 * cyc2ns_scale needs to be a 32-bit value so that 32-bit multiplication
117 * (64-bit result) can be used.
122 * -johnstul@us.ibm.com "math is hard, lets go shopping!"
166 * conversion algorithm shifting a 32-bit value (now specifies a 64-bit in __set_cyc2ns_scale()
167 * value) - refer perf_event_mmap_page documentation in perf_event.h. in __set_cyc2ns_scale()
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Dhpet.c1 // SPDX-License-Identifier: GPL-2.0-only
134 * is_hpet_enabled - Check whether the legacy HPET timer interrupt is enabled
211 hd.hd_irq[i] = hc->irq; in hpet_reserve_platform_timers()
213 switch (hc->mode) { in hpet_reserve_platform_timers()
216 hc->mode = HPET_MODE_DEVICE; in hpet_reserve_platform_timers()
220 hpet_reserve_timer(&hd, hc->num); in hpet_reserve_platform_timers()
236 if (hc->mode == HPET_MODE_UNUSED) { in hpet_select_device_channel()
237 hc->mode = HPET_MODE_DEVICE; in hpet_select_device_channel()
300 unsigned int channel = clockevent_to_channel(evt)->num; in hpet_clkevt_set_state_periodic()
305 delta = ((uint64_t)(NSEC_PER_SEC / HZ)) * evt->mult; in hpet_clkevt_set_state_periodic()
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/linux-6.15/arch/x86/kvm/vmx/
Dvmx.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Kernel-based Virtual Machine driver for Linux
5 * This module enables machines with Intel VT-x extensions to run virtual
31 #include <linux/entry-kvm.h>
50 #include <asm/spec-ctrl.h>
77 MODULE_DESCRIPTION("KVM support for VMX (Intel VT-x) extensions");
140 /* Guest_tsc -> host_tsc conversion requires 64-bit division. */
192 * These 2 parameters are used to config the controls for Pause-Loop Exiting:
208 /* Default doubles per-vcpu window every exit. */
212 /* Default resets per-vcpu window every exit to ple_window. */
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/linux-6.15/arch/x86/crypto/
Daes-xts-avx-x86_64.S1 /* SPDX-License-Identifier: Apache-2.0 OR BSD-2-Clause */
3 // AES-XTS for modern x86_64 CPUs
9 //------------------------------------------------------------------------------
11 // This file is dual-licensed, meaning that you can use it under your choice of
17 // http://www.apache.org/licenses/LICENSE-2.0
50 * This file implements AES-XTS for modern x86_64 CPUs. To handle the
55 * AES-NI + AVX
56 * - 128-bit vectors (1 AES block per vector)
57 * - VEX-coded instructions
58 * - xmm0-xmm15
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/linux-6.15/arch/x86/kernel/cpu/microcode/
Dcore.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (C) 2000-2006 Tigran Aivazian <aivazian.tigran@gmail.com>
7 * 2013-2016 Borislav Petkov <bp@alien8.de>
53 * All non cpu-hotplug-callback call sites use:
55 * - cpus_read_lock/unlock() to synchronize with
56 * the cpu-hotplug-callback call sites.
70 0, /* T-101 terminator */
79 * - true: if update should stop
80 * - false: otherwise
111 * 2) Bit 31 in CPUID[1]:ECX is clear in microcode_loader_disabled()
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/linux-6.15/tools/lib/bpf/
Dusdt.c1 // SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
25 /* libbpf's USDT support consists of BPF-side state/code and user-space
26 * state/code working together in concert. BPF-side parts are defined in
27 * usdt.bpf.h header library. User-space state is encapsulated by struct
31 * and IP-to-spec-ID map, which is auxiliary map necessary for kernels that
39 * USDT-related until the very first call to bpf_program__attach_usdt(), which
43 * store it in bpf_object. USDT manager is per-BPF object construct, as each
45 * the expected USDT-related state. There is no coordination between two
47 * existence and libbpf is just oblivious, dealing with bpf_object-specific
52 * From user-space application's point of view, USDT is essentially just
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/linux-6.15/drivers/net/ethernet/stmicro/stmmac/
Ddwmac-intel.c1 // SPDX-License-Identifier: GPL-2.0
5 #include <linux/clk-provider.h>
9 #include "dwmac-intel.h"
98 int func = PCI_FUNC(pdev->devfn); in stmmac_pci_find_phy_addr()
103 return -ENODEV; in stmmac_pci_find_phy_addr()
105 dmi_data = dmi_id->driver_data; in stmmac_pci_find_phy_addr()
106 func_data = dmi_data->func; in stmmac_pci_find_phy_addr()
108 for (n = 0; n < dmi_data->nfuncs; n++, func_data++) in stmmac_pci_find_phy_addr()
109 if (func_data->func == func) in stmmac_pci_find_phy_addr()
110 return func_data->phy_addr; in stmmac_pci_find_phy_addr()
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