| /linux-6.12.1/Documentation/arch/arm64/ |
| D | amu.rst | 9 Date: 2019-09-10
16 ---------------------
24 optional external memory-mapped interface.
27 of four fixed and architecturally defined 64-bit event counters.
29 - CPU cycle counter: increments at the frequency of the CPU.
30 - Constant counter: increments at the fixed frequency of the system
32 - Instructions retired: increments with every architecturally executed
34 - Memory stall cycles: counts instruction dispatch stall cycles caused by
44 64-bit event counters.
50 -------------
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| /linux-6.12.1/Documentation/devicetree/bindings/interrupt-controller/ |
| D | riscv,cpu-intc.yaml | 1 # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/interrupt-controller/riscv,cpu-intc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RISC-V Hart-Level Interrupt Controller (HLIC)
10 RISC-V cores include Control Status Registers (CSRs) which are local to
11 each CPU core (HART in RISC-V terminology) and can be read or written by
16 The RISC-V supervisor ISA manual specifies three interrupt sources that are
19 cores. The timer interrupt comes from an architecturally mandated real-
22 the HLIC, which are routed via the platform-level interrupt controller
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| /linux-6.12.1/Documentation/devicetree/bindings/arm/ |
| D | arm,coresight-cti.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
4 ---
5 $id: http://devicetree.org/schemas/arm/arm,coresight-cti.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
21 number is defined at design time, the maximum of each defined in the DEVID
25 programmable channels, usually 4, but again implementation defined and
31 are implementation defined, except when the CTI is connected to an ARM v8
36 architecturally connected CTI an additional compatible string is used to
37 indicate this feature (arm,coresight-cti-v8-arch).
51 and usages. These can be defined along with the signal indexes with the
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| /linux-6.12.1/arch/arm/include/asm/ |
| D | virt.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
14 * architecturally defined flag bit here.
24 * A correctly-implemented bootloader must start all CPUs in the same mode:
|
| /linux-6.12.1/Documentation/virt/kvm/devices/ |
| D | arm-vgic-v3.rst | 1 .. SPDX-License-Identifier: GPL-2.0
9 - KVM_DEV_TYPE_ARM_VGIC_V3 ARM Generic Interrupt Controller v3.0
12 will act as the VM interrupt controller, requiring emulated user-space devices
23 KVM_VGIC_V3_ADDR_TYPE_DIST (rw, 64-bit)
28 KVM_VGIC_V3_ADDR_TYPE_REDIST (rw, 64-bit)
35 KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION (rw, 64-bit)
38 bits: | 63 .... 52 | 51 .... 16 | 15 - 12 |11 - 0
41 - index encodes the unique redistributor region index
42 - flags: reserved for future use, currently 0
43 - base field encodes bits [51:16] of the guest physical base address
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| /linux-6.12.1/Documentation/devicetree/bindings/timer/ |
| D | arm,arch_timer_mmio.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Marc Zyngier <marc.zyngier@arm.com>
11 - Mark Rutland <mark.rutland@arm.com>
22 - enum:
23 - arm,armv7-timer-mem
29 '#address-cells':
32 '#size-cells':
37 clock-frequency:
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| D | arm,arch_timer.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Marc Zyngier <marc.zyngier@arm.com>
11 - Mark Rutland <mark.rutland@arm.com>
13 ARM cores may have a per-core architected timer, which provides per-cpu timers,
17 The per-core architected timer is attached to a GIC to deliver its
18 per-processor interrupts via PPIs. The memory mapped timer is attached to a GIC
24 - items:
25 - const: arm,cortex-a15-timer
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| /linux-6.12.1/arch/parisc/kernel/ |
| D | vmlinux.lds.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
4 * Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org>
5 * Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
6 * Copyright (C) 2000 John Marvin <jsm at parisc-linux.org>
8 * Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
9 * Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org>
10 * Copyright (C) 2006-2013 Helge Deller <deller@gmx.de>
24 #include <asm-generic/vmlinux.lds.h>
29 #include <asm/asm-offsets.h>
34 OUTPUT_FORMAT("elf32-hppa-linux")
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| /linux-6.12.1/tools/perf/pmu-events/arch/x86/silvermont/ |
| D | pipeline.json | 107 …architecturally defined event. This event counts the number of retired branch instructions that we…
116 …he processor predicts that the branch would be taken, but it is not, or vice-versa. When the misp…
126 …he processor predicts that the branch would be taken, but it is not, or vice-versa. When the misp…
136 …he processor predicts that the branch would be taken, but it is not, or vice-versa. When the misp…
146 …he processor predicts that the branch would be taken, but it is not, or vice-versa. When the misp…
156 …he processor predicts that the branch would be taken, but it is not, or vice-versa. When the misp…
164 …by dividing the event count by the core frequency. This event is architecturally defined and is a …
189 …lapsed time while the core was not in halt state. This event is architecturally defined and is a …
206 … For instructions that consist of multiple micro-ops, this event counts exactly once, as the last …
215 … For instructions that consist of multiple micro-ops, this event counts the retirement of the last…
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| /linux-6.12.1/Documentation/arch/x86/ |
| D | entry_64.rst | 1 .. SPDX-License-Identifier: GPL-2.0
16 for 64-bit, arch/x86/entry/entry_32.S for 32-bit and finally
17 arch/x86/entry/entry_64_compat.S which implements the 32-bit compatibility
18 syscall entry points and thus provides for 32-bit processes the
19 ability to execute syscalls when running on 64-bit kernels.
25 - system_call: syscall instruction from 64-bit code.
27 - entry_INT80_compat: int 0x80 from 32-bit or 64-bit code; compat syscall
30 - entry_INT80_compat, ia32_sysenter: syscall and sysenter from 32-bit
33 - interrupt: An array of entries. Every IDT vector that doesn't
36 magically-generated functions that make their way to common_interrupt()
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| /linux-6.12.1/drivers/hwtracing/coresight/ |
| D | coresight-cti-platform.c | 1 // SPDX-License-Identifier: GPL-2.0
12 #include <dt-bindings/arm/coresight-cti-dt.h>
14 #include "coresight-cti.h"
15 #include "coresight-priv.h"
17 /* Number of CTI signals in the v8 architecturally defined connection */
23 #define CTI_DT_CONNS "trig-conns"
26 #define CTI_DT_V8ARCH_COMPAT "arm,coresight-cti-v8-arch"
27 #define CTI_DT_CSDEV_ASSOC "arm,cs-dev-assoc"
28 #define CTI_DT_TRIGIN_SIGS "arm,trig-in-sigs"
29 #define CTI_DT_TRIGOUT_SIGS "arm,trig-out-sigs"
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| /linux-6.12.1/arch/x86/lib/ |
| D | retpoline.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
9 #include <asm/asm-offsets.h>
10 #include <asm/nospec-branch.h>
64 #include <asm/GEN-for-each-reg.h>
71 #include <asm/GEN-for-each-reg.h>
93 #include <asm/GEN-for-each-reg.h>
100 #include <asm/GEN-for-each-reg.h>
119 #include <asm/GEN-for-each-reg.h>
126 #include <asm/GEN-for-each-reg.h>
136 * relocations for same-section JMPs and that breaks the returns
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| /linux-6.12.1/Documentation/trace/coresight/ |
| D | coresight-ect.rst | 1 .. SPDX-License-Identifier: GPL-2.0
11 --------------------
21 0 C 0----------->: : +======>(other CTI channel IO)
22 0 P 0<-----------: : v
24 0000000 : CTI :<=========>*CTM*<====>: CTI :---+
25 ####### in_trigs : : (id 0-3) ***** ::::::: v
26 # ETM #----------->: : ^ #######
27 # #<-----------: : +---# ETR #
47 defined, unless the CPU/ETM combination is a v8 architecture, in which case
48 the connections have an architecturally defined standard layout.
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| D | coresight-etm4x-reference.rst | 11 ---------------------------
20 ----
37 ----
47 ----
52 - > 0 : Programs up the hardware with the current values held in the driver
55 - = 0 : disable trace hardware.
60 ----
72 ----
77 When FEAT_TRF is implemented, value of TRFCR_ELx.TS used for trace session. Otherwise -1
86 ----
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| /linux-6.12.1/arch/x86/mm/ |
| D | pgtable.c | 1 // SPDX-License-Identifier: GPL-2.0
11 phys_addr_t physical_mask __ro_after_init = (1ULL << __PHYSICAL_MASK_SHIFT) - 1;
39 return -EINVAL; in setup_userpte()
48 return -EINVAL; in setup_userpte()
66 * NOTE! For PAE, any changes to the top page-directory-pointer-table in ___pmd_free_tlb()
70 tlb->need_flush_all = 1; in ___pmd_free_tlb()
100 list_add(&ptdesc->pt_list, &pgd_list); in pgd_list_add()
107 list_del(&ptdesc->pt_list); in pgd_list_del()
118 virt_to_ptdesc(pgd)->pt_mm = mm; in pgd_set_mm()
123 return page_ptdesc(page)->pt_mm; in pgd_page_get_mm()
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| /linux-6.12.1/arch/arm64/kvm/ |
| D | reset.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2012,2013 - ARM Ltd
7 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
81 vcpu->arch.sve_max_vl = kvm_sve_max_vl; in kvm_vcpu_enable_sve()
93 * vcpu->arch.sve_state as necessary.
102 vl = vcpu->arch.sve_max_vl; in kvm_vcpu_finalize_sve()
107 * set_sve_vls(). Double-check here just to be sure: in kvm_vcpu_finalize_sve()
111 return -EIO; in kvm_vcpu_finalize_sve()
116 return -ENOMEM; in kvm_vcpu_finalize_sve()
124 vcpu->arch.sve_state = buf; in kvm_vcpu_finalize_sve()
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| /linux-6.12.1/drivers/clocksource/ |
| D | arc_timer.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2016-17 Synopsys, Inc. (www.synopsys.com)
4 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
11 * ARCv2 based HS38 cores have RTC (in-core) and GFRC (inside ARConnect/MCIP)
18 #include <linux/clk-provider.h>
65 * MCIP_CMD/MCIP_READBACK however micro-architecturally there's in arc_read_gfrc()
70 * trying to access two different sub-components (like GFRC, in arc_read_gfrc()
71 * inter-core interrupt, etc...). HW also supports simultaneously in arc_read_gfrc()
75 * defined in arch/arc/kernel/mcip.c in arc_read_gfrc()
110 pr_warn("Global-64-bit-Ctr clocksource not detected\n"); in arc_cs_setup_gfrc()
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| /linux-6.12.1/arch/arm64/include/asm/ |
| D | ptrace.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 1996-2003 Russell King
24 #include <linux/irqchip/arm-gic-v3-prio.h>
35 /* AArch32-specific ptrace requests */
68 #define PSR_AA32_IT_MASK 0x0600fc00 /* If-Then execution state mask */
90 * a syscall -- i.e., its most recent entry into the kernel from
93 * This must have the value -1, for ABI compatibility with ptrace etc.
95 #define NO_SYSCALL (-1)
104 /* Architecturally defined mapping between AArch32 and AArch64 registers */
185 return regs->syscallno != NO_SYSCALL; in in_syscall()
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| /linux-6.12.1/arch/arm64/include/uapi/asm/ |
| D | kvm.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
3 * Copyright (C) 2012,2013 - ARM Ltd
7 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
61 * Supported CPU Targets - Adding a new target type is not recommended,
129 * Although the control registers are architecturally defined as 32
152 * Architecture specific defines for kvm_guest_debug->control
163 /* Bits for run->s.regs.device_irq_level */
268 * KVM_REG_ARM_TIMER_CVAL and KVM_REG_ARM_TIMER_CNT are not defined
277 /* KVM-as-firmware specific pseudo-registers */
289 * - NOT_REQUIRED: the guest doesn't need to do anything
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| /linux-6.12.1/tools/arch/arm64/include/uapi/asm/ |
| D | kvm.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
3 * Copyright (C) 2012,2013 - ARM Ltd
7 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
61 * Supported CPU Targets - Adding a new target type is not recommended,
129 * Although the control registers are architecturally defined as 32
152 * Architecture specific defines for kvm_guest_debug->control
163 /* Bits for run->s.regs.device_irq_level */
268 * KVM_REG_ARM_TIMER_CVAL and KVM_REG_ARM_TIMER_CNT are not defined
277 /* KVM-as-firmware specific pseudo-registers */
289 * - NOT_REQUIRED: the guest doesn't need to do anything
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| /linux-6.12.1/arch/arm64/kvm/hyp/nvhe/ |
| D | sys_regs.c | 1 // SPDX-License-Identifier: GPL-2.0-only
7 #include <linux/irqchip/arm-gic-v3.h>
62 u64 mask = GENMASK_ULL(ARM64_FEATURE_FIELD_BITS - 1, 0); in get_restricted_features_unsigned()
99 const struct kvm *kvm = (const struct kvm *)kern_hyp_va(vcpu->kvm); in get_pvm_id_aa64pfr1()
141 * No support for implementation defined features, therefore, hyp has no in get_pvm_id_aa64afr0()
151 * No support for implementation defined features, therefore, hyp has no in get_pvm_id_aa64afr1()
253 if (!p->is_write) in pvm_access_raz_wi()
254 p->regval = 0; in pvm_access_raz_wi()
269 if (p->is_write) { in pvm_access_id_aarch32()
295 if (p->is_write) { in pvm_access_id_aarch64()
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| /linux-6.12.1/arch/x86/include/asm/ |
| D | mce.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
29 #define MCG_STATUS_SEAM_NR BIT_ULL(12) /* Machine check inside SEAM non-root mode */
49 /* AMD-specific bits */
58 * - Deferred error interrupt type is specifiable by bank.
59 * - MCx_MISC0[BlkPtr] field indicates presence of extended MISC registers,
61 * - TCC bit is present in MCx_STATUS.
69 * bits 15:0. But bit 12 is the 'F' bit, defined for corrected
72 * of uncorrected errors - so the F bit is deliberately skipped
77 /* Architecturally defined codes from SDM Vol. 3B Chapter 15 */
78 #define MCACOD_SCRUB 0x00C0 /* 0xC0-0xCF Memory Scrubbing */
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| /linux-6.12.1/include/linux/ |
| D | coresight.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
17 /* Peripheral id registers (0xFD0-0xFEC) */
26 /* Component id registers (0xFF0-0xFFC) */
78 * union coresight_dev_subtype - further characterisation of a type
79 * @sink_subtype: type of sink this component is, as defined
81 * @link_subtype: type of link this component is, as defined
83 * @source_subtype: type of source this component is, as defined
85 * @helper_subtype: type of helper this component is, as defined
99 * struct coresight_platform_data - data harvested from the firmware
118 * struct csdev_access - Abstraction of a CoreSight device access.
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| /linux-6.12.1/arch/arm/probes/ |
| D | decode.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
26 /* str_pc_offset is architecturally defined from ARMv7 onwards */
32 /* We need a run-time check to determine str_pc_offset */
41 long cpsr = regs->ARM_cpsr; in bx_write_pc()
49 regs->ARM_cpsr = cpsr; in bx_write_pc()
50 regs->ARM_pc = pcv; in bx_write_pc()
62 /* We need run-time testing to determine if load_write_pc() should interwork. */
73 regs->ARM_pc = pcv; in load_write_pc()
90 /* We could be an ARMv6 binary on ARMv7 hardware so we need a run-time check. */
101 regs->ARM_pc = pcv; in alu_write_pc()
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| /linux-6.12.1/tools/testing/selftests/kvm/x86_64/ |
| D | pmu_counters_test.c | 1 // SPDX-License-Identifier: GPL-2.0
87 * bizarre with an architecturally valid, but unsupported, version. in guest_get_pmu_version()
94 * one "hit, assert that its count is non-zero. If an event isn't supported or
320 * Limit testing to MSRs that are actually defined by Intel (in the SDM). MSRs
321 * that aren't defined counter MSRs *probably* don't exist, but there's no
366 * TODO: Test a value that validates full-width writes and the in guest_rd_wr_counters()
411 * KVM doesn't support non-architectural PMUs, i.e. it should in guest_rd_wr_counters()
417 guest_test_rdpmc(rdpmc_idx, false, -1ull); in guest_rd_wr_counters()
434 * For v2+ PMUs, PERF_GLOBAL_CTRL's architectural post-RESET value is in guest_test_gp_counters()
435 * "Sets bits n-1:0 and clears the upper bits", where 'n' is the number in guest_test_gp_counters()
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