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/kernel/linux/linux-6.6/drivers/tty/serial/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
19 comment "Non-8250 serial port support"
39 messages and warnings and which allows logins in single user mode).
41 Even if you say Y here, the currently visible framebuffer console
67 messages and warnings and which allows logins in single user mode).
69 Even if you say Y here, the currently visible framebuffer console
89 bool "Early console using RISC-V SBI"
95 Support for early debug console using RISC-V SBI. This enables
101 tristate "BCM1xxx on-chip DUART serial support"
107 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that
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/kernel/linux/linux-5.10/drivers/tty/serial/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
19 comment "Non-8250 serial port support"
39 messages and warnings and which allows logins in single user mode).
41 Even if you say Y here, the currently visible framebuffer console
67 messages and warnings and which allows logins in single user mode).
69 Even if you say Y here, the currently visible framebuffer console
89 bool "Early console using RISC-V SBI"
95 Support for early debug console using RISC-V SBI. This enables
101 tristate "BCM1xxx on-chip DUART serial support"
107 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that
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/kernel/linux/linux-6.6/tools/power/pm-graph/
Dbootgraph.83 bootgraph \- Kernel boot timing analysis
13 timeline is split into two phases: kernel mode & user mode. kernel mode
15 Once user mode begins, the init process is called, and the init calls
24 Generates output files in subdirectory: boot-yymmdd-HHMMSS
30 \fB-h\fR
33 \fB-v\fR
36 \fB-addlogs\fR
40 \fB-result \fIfile\fR
43 \fB-o \fIname\fR
47 e.g. boot-{hostname}-{date}-{time}
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/kernel/linux/linux-5.10/tools/power/pm-graph/
Dbootgraph.83 bootgraph \- Kernel boot timing analysis
13 timeline is split into two phases: kernel mode & user mode. kernel mode
15 Once user mode begins, the init process is called, and the init calls
24 Generates output files in subdirectory: boot-yymmdd-HHMMSS
30 \fB-h\fR
33 \fB-v\fR
36 \fB-addlogs\fR
40 \fB-result \fIfile\fR
43 \fB-o \fIname\fR
47 e.g. boot-{hostname}-{date}-{time}
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/kernel/linux/linux-6.6/arch/m68k/
DKconfig.devices1 # SPDX-License-Identifier: GPL-2.0
15 Use the power-on LED on your machine as a load meter. The exact
16 behavior is platform-dependent, but normally the flash frequency is
17 a hyperbolic function of the 5-minute load average.
19 # We have a dedicated heartbeat LED. :-)
25 access to information about the machine you're running on,
102 If you want to use your Amiga's built-in serial port in Linux,
112 machine, say Y here.
119 machine, say Y here.
128 mode). This could be useful if some terminal or printer is connected
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/kernel/linux/linux-5.10/arch/m68k/
DKconfig.devices1 # SPDX-License-Identifier: GPL-2.0
15 Use the power-on LED on your machine as a load meter. The exact
16 behavior is platform-dependent, but normally the flash frequency is
17 a hyperbolic function of the 5-minute load average.
19 # We have a dedicated heartbeat LED. :-)
25 access to information about the machine you're running on,
102 If you want to use your Amiga's built-in serial port in Linux,
112 machine, say Y here.
119 machine, say Y here.
128 mode). This could be useful if some terminal or printer is connected
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/kernel/linux/linux-5.10/arch/x86/kernel/
Dsmp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * (c) 1998-99, 2000, 2009 Ingo Molnar <mingo@redhat.com>
44 * None of the E1AP-E3AP errata are visible to the user.
51 * None of the A1AP-A3AP errata are visible to the user.
58 * None of 1AP-9AP errata are visible to the normal user,
60 * This is very rare and a non-problem.
62 * 1AP. Linux maps APIC as non-cacheable
67 * 5AP. symmetric IO mode (normal Linux operation) not affected.
68 * 'noapic' mode has vector 0xf filled out properly.
69 * 6AP. 'noapic' mode might be affected - fixed in later steppings
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/kernel/linux/linux-5.10/include/uapi/linux/
Dparport.h10 /* Start off with user-visible constants */
12 /* Maximum of 16 ports per machine */
16 #define PARPORT_IRQ_NONE -1
17 #define PARPORT_DMA_NONE -1
18 #define PARPORT_IRQ_AUTO -2
19 #define PARPORT_DMA_AUTO -2
20 #define PARPORT_DMA_NOFIFO -3
21 #define PARPORT_DISABLE -2
22 #define PARPORT_IRQ_PROBEONLY -3
23 #define PARPORT_IOHI_AUTO -1
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/kernel/linux/linux-6.6/arch/x86/kernel/
Dsmp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * (c) 1998-99, 2000, 2009 Ingo Molnar <mingo@redhat.com>
46 * None of the E1AP-E3AP errata are visible to the user.
53 * None of the A1AP-A3AP errata are visible to the user.
60 * None of 1AP-9AP errata are visible to the normal user,
62 * This is very rare and a non-problem.
64 * 1AP. Linux maps APIC as non-cacheable
69 * 5AP. symmetric IO mode (normal Linux operation) not affected.
70 * 'noapic' mode has vector 0xf filled out properly.
71 * 6AP. 'noapic' mode might be affected - fixed in later steppings
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/kernel/linux/linux-6.6/include/uapi/linux/
Dparport.h10 /* Start off with user-visible constants */
12 /* Maximum of 16 ports per machine */
16 #define PARPORT_IRQ_NONE -1
17 #define PARPORT_DMA_NONE -1
18 #define PARPORT_IRQ_AUTO -2
19 #define PARPORT_DMA_AUTO -2
20 #define PARPORT_DMA_NOFIFO -3
21 #define PARPORT_DISABLE -2
22 #define PARPORT_IRQ_PROBEONLY -3
23 #define PARPORT_IOHI_AUTO -1
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/kernel/linux/linux-6.6/Documentation/devicetree/bindings/riscv/
Dextensions.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RISC-V ISA extensions
10 - Paul Walmsley <paul.walmsley@sifive.com>
11 - Palmer Dabbelt <palmer@sifive.com>
12 - Conor Dooley <conor@kernel.org>
15 RISC-V has a large number of extensions, some of which are "standard"
16 extensions, meaning they are ratified by RISC-V International, and others
36 Identifies the specific RISC-V instruction set architecture
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/kernel/linux/linux-5.10/Documentation/filesystems/
Dtmpfs.rst1 .. SPDX-License-Identifier: GPL-2.0
17 be adjusted on the fly via 'mount -o remount ...'
38 set, the user visible part of tmpfs is not build. But the internal
60 4) And probably a lot more I do not know about :-)
68 oversize your tmpfs instances the machine will deadlock
73 machine with highmem) the number of lowmem RAM pages,
85 use up all the memory on the machine; but enhances the scalability of
90 all files in that instance (if CONFIG_NUMA is enabled) - which can be
91 adjusted on the fly via 'mount -o remount ...'
103 NodeList format is a comma-separated list of decimal numbers and ranges,
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/kernel/linux/linux-5.10/arch/powerpc/include/asm/
Dreg.h1 /* SPDX-License-Identifier: GPL-2.0 */
6 * number used in the Programming Environments Manual For 32-Bit
17 #include <asm/asm-const.h>
18 #include <asm/feature-fixups.h>
31 #define MSR_SF_LG 63 /* Enable 64 bit mode */
32 #define MSR_ISF_LG 61 /* Interrupt 64b mode valid on 630 */
49 #define MSR_ME_LG 12 /* Machine Check Enable */
50 #define MSR_FE0_LG 11 /* Floating Exception mode 0 */
54 #define MSR_FE1_LG 8 /* Floating Exception mode 1 */
59 #define MSR_PX_LG 2 /* Protection Exclusive Mode */
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/kernel/linux/linux-6.6/arch/powerpc/include/asm/
Dreg.h1 /* SPDX-License-Identifier: GPL-2.0 */
6 * number used in the Programming Environments Manual For 32-Bit
17 #include <asm/asm-const.h>
18 #include <asm/feature-fixups.h>
31 #define MSR_SF_LG 63 /* Enable 64 bit mode */
48 #define MSR_ME_LG 12 /* Machine Check Enable */
49 #define MSR_FE0_LG 11 /* Floating Exception mode 0 */
53 #define MSR_FE1_LG 8 /* Floating Exception mode 1 */
58 #define MSR_PX_LG 2 /* Protection Exclusive Mode */
70 #define MSR_SF __MASK(MSR_SF_LG) /* Enable 64 bit mode */
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/kernel/linux/linux-6.6/scripts/kconfig/
Dmconf.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
5 * Introduced single menu mode (show all sub-menus in one large tree).
6 * 2002-11-06 Petr Baudis <pasky@ucw.cz>
27 "--------\n"
29 "Features can either be built-in, modularized, or ignored. Parameters\n"
36 " - - are selected by other feature,\n"
43 "through the available options (i.e. Y->N->M->Y).\n"
48 "----------\n"
51 " Submenus are designated by \"--->\", empty ones by \"----\".\n"
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/kernel/linux/linux-6.6/Documentation/virt/kvm/x86/
Dtimekeeping.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Timekeeping Virtualization for X86-Based Architectures
32 information relevant to KVM and hardware-based virtualization.
41 2.1. i8254 - PIT
42 ----------------
46 channels which can be programmed to deliver periodic or one-shot interrupts.
53 The PIT uses I/O ports 0x40 - 0x43. Access to the 16-bit counters is done
59 -------------- ----------------
61 | 1.1932 MHz|---------->| CLOCK OUT | ---------> IRQ 0
63 -------------- | +->| GATE TIMER 0 |
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/kernel/linux/linux-5.10/Documentation/virt/kvm/
Dtimekeeping.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Timekeeping Virtualization for X86-Based Architectures
32 information relevant to KVM and hardware-based virtualization.
41 2.1. i8254 - PIT
42 ----------------
46 channels which can be programmed to deliver periodic or one-shot interrupts.
53 The PIT uses I/O ports 0x40 - 0x43. Access to the 16-bit counters is done
59 -------------- ----------------
61 | 1.1932 MHz|---------->| CLOCK OUT | ---------> IRQ 0
63 -------------- | +->| GATE TIMER 0 |
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/kernel/linux/linux-5.10/arch/arm/kernel/
Dhead.S1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 1994-2002 Russell King
9 * Kernel startup code for all 32-bit CPUs
19 #include <asm/asm-offsets.h>
72 * ---------------------------
75 * are: MMU = off, D-cache = off, I-cache = dont care, r0 = 0,
76 * r1 = machine nr, r2 = atags or dtb pointer.
81 * See linux/arch/arm/tools/mach-types for the complete list of machine
84 * We're trying to keep crap to a minimum; DO NOT add any machine specific
85 * crap here - that's what the boot loader (or in extreme, well justified
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/kernel/linux/linux-6.6/arch/arm/kernel/
Dhead.S1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 1994-2002 Russell King
9 * Kernel startup code for all 32-bit CPUs
19 #include <asm/asm-offsets.h>
48 .equ swapper_pg_dir, KERNEL_RAM_VADDR - PG_DIR_SIZE
74 * ---------------------------
77 * are: MMU = off, D-cache = off, I-cache = dont care, r0 = 0,
78 * r1 = machine nr, r2 = atags or dtb pointer.
83 * See linux/arch/arm/tools/mach-types for the complete list of machine
86 * We're trying to keep crap to a minimum; DO NOT add any machine specific
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/kernel/linux/linux-5.10/scripts/kconfig/
Dmconf.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
5 * Introduced single menu mode (show all sub-menus in one large tree).
6 * 2002-11-06 Petr Baudis <pasky@ucw.cz>
27 "--------\n"
29 "Features can either be built-in, modularized, or ignored. Parameters\n"
36 " - - are selected by other feature,\n"
43 "through the available options (i.e. Y->N->M->Y).\n"
48 "----------\n"
51 " Submenus are designated by \"--->\", empty ones by \"----\".\n"
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/kernel/linux/linux-6.6/Documentation/driver-api/usb/
Dgadget.rst11 This document presents a Linux-USB "Gadget" kernel mode API, for use
17 - Supports USB 2.0, for high speed devices which can stream data at
20 - Handles devices with dozens of endpoints just as well as ones with
21 just two fixed-function ones. Gadget drivers can be written so
24 - Flexible enough to expose more complex USB device capabilities such
28 - USB "On-The-Go" (OTG) support, in conjunction with updates to the
29 Linux-USB host side.
31 - Sharing data structures and API models with the Linux-USB host side
32 API. This helps the OTG support, and looks forward to more-symmetric
36 - Minimalist, so it's easier to support new device controller hardware.
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/kernel/linux/linux-5.10/Documentation/driver-api/usb/
Dgadget.rst11 This document presents a Linux-USB "Gadget" kernel mode API, for use
17 - Supports USB 2.0, for high speed devices which can stream data at
20 - Handles devices with dozens of endpoints just as well as ones with
21 just two fixed-function ones. Gadget drivers can be written so
24 - Flexible enough to expose more complex USB device capabilities such
28 - USB "On-The-Go" (OTG) support, in conjunction with updates to the
29 Linux-USB host side.
31 - Sharing data structures and API models with the Linux-USB host side
32 API. This helps the OTG support, and looks forward to more-symmetric
36 - Minimalist, so it's easier to support new device controller hardware.
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/kernel/linux/linux-5.10/Documentation/m68k/
Dkernel-options.rst9 Author: Roman.Hodek@informatik.uni-erlangen.de (Roman Hodek)
11 Update: jds@kom.auc.dk (Jes Sorensen) and faq@linux-m68k.org (Chris Lawrence)
58 ----------
76 /dev/ram: -> 0x0100 (initial ramdisk)
77 /dev/hda: -> 0x0300 (first IDE disk)
78 /dev/hdb: -> 0x0340 (second IDE disk)
79 /dev/sda: -> 0x0800 (first SCSI disk)
80 /dev/sdb: -> 0x0810 (second SCSI disk)
81 /dev/sdc: -> 0x0820 (third SCSI disk)
82 /dev/sdd: -> 0x0830 (forth SCSI disk)
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/kernel/linux/linux-6.6/Documentation/arch/m68k/
Dkernel-options.rst9 Author: Roman.Hodek@informatik.uni-erlangen.de (Roman Hodek)
11 Update: jds@kom.auc.dk (Jes Sorensen) and faq@linux-m68k.org (Chris Lawrence)
58 ----------
76 /dev/ram: -> 0x0100 (initial ramdisk)
77 /dev/hda: -> 0x0300 (first IDE disk)
78 /dev/hdb: -> 0x0340 (second IDE disk)
79 /dev/sda: -> 0x0800 (first SCSI disk)
80 /dev/sdb: -> 0x0810 (second SCSI disk)
81 /dev/sdc: -> 0x0820 (third SCSI disk)
82 /dev/sdd: -> 0x0830 (forth SCSI disk)
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/kernel/linux/linux-6.6/Documentation/filesystems/
Dtmpfs.rst1 .. SPDX-License-Identifier: GPL-2.0
21 fly using a remount ('mount -o remount ...') of the filesystem. A tmpfs
50 set, the user visible part of tmpfs is not built. But the internal
72 4) And probably a lot more I do not know about :-)
80 oversize your tmpfs instances the machine will deadlock
85 machine with highmem) the number of lowmem RAM pages,
97 use up all the memory on the machine; but enhances the scalability of
101 extended attributes: "df -i"'s IUsed and IUse% increase, IFree decreases.
124 See also Documentation/admin-guide/mm/transhuge.rst, which describes the
150 quota entry for user/group/project id is being accessed - typically the
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