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/linux-5.10/tools/testing/selftests/bpf/
Dtest_current_pid_tgid_new_ns.c1 // SPDX-License-Identifier: GPL-2.0
39 if (stat("/proc/self/ns/pid", &st)) { in main()
40 perror("stat failed on /proc/self/ns/pid ns\n"); in main()
50 if (pid == -1) { in main()
65 if (pid == -1) { in main()
76 if (CHECK_NEWNS(mount("none", "/proc", NULL, MS_PRIVATE|MS_REC, NULL), in main()
77 "Unmounting proc", "Cannot umount proc! errno=%d\n", errno)) in main()
80 if (CHECK_NEWNS(mount("proc", "/proc", "proc", MS_NOSUID|MS_NOEXEC|MS_NODEV, NULL), in main()
81 "Mounting proc", "Cannot mount proc! errno=%d\n", errno)) in main()
94 __u64 id; in main() local
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/linux-5.10/arch/um/kernel/skas/
Dmmu.c1 // SPDX-License-Identifier: GPL-2.0
4 * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
13 #include <as-layout.h>
17 static int init_stub_pte(struct mm_struct *mm, unsigned long proc, in init_stub_pte() argument
26 pgd = pgd_offset(mm, proc); in init_stub_pte()
28 p4d = p4d_alloc(mm, pgd, proc); in init_stub_pte()
32 pud = pud_alloc(mm, p4d, proc); in init_stub_pte()
36 pmd = pmd_alloc(mm, pud, proc); in init_stub_pte()
40 pte = pte_alloc_map(mm, pmd, proc); in init_stub_pte()
55 return -ENOMEM; in init_stub_pte()
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/linux-5.10/drivers/scsi/
Dscsi_proc.c1 // SPDX-License-Identifier: GPL-2.0
6 * the PROC file system and the SCSI device drivers
10 * (c) 1995 Michael Neuffer neuffer@goofy.zdv.uni-mainz.de
14 * Andreas Heilwagen <crashcar@informatik.uni-koblenz.de>
46 /* Protect sht->present and sht->proc_dir */
53 ssize_t ret = -ENOMEM; in proc_scsi_host_write()
57 return -EOVERFLOW; in proc_scsi_host_write()
59 if (!shost->hostt->write_info) in proc_scsi_host_write()
60 return -EINVAL; in proc_scsi_host_write()
64 ret = -EFAULT; in proc_scsi_host_write()
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/linux-5.10/drivers/acpi/
Dtables.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * acpi_tables.c - ACPI Boot-Time Table Parsing
60 switch (header->type) { in acpi_table_print_madt_entry()
67 p->processor_id, p->id, in acpi_table_print_madt_entry()
68 (p->lapic_flags & ACPI_MADT_ENABLED) ? "enabled" : "disabled"); in acpi_table_print_madt_entry()
77 p->local_apic_id, p->uid, in acpi_table_print_madt_entry()
78 (p->lapic_flags & ACPI_MADT_ENABLED) ? "enabled" : "disabled"); in acpi_table_print_madt_entry()
86 pr_debug("IOAPIC (id[0x%02x] address[0x%08x] gsi_base[%d])\n", in acpi_table_print_madt_entry()
87 p->id, p->address, p->global_irq_base); in acpi_table_print_madt_entry()
96 p->bus, p->source_irq, p->global_irq, in acpi_table_print_madt_entry()
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/linux-5.10/Documentation/firmware-guide/acpi/apei/
Doutput_format.rst1 .. SPDX-License-Identifier: GPL-2.0
35 [processor_type: <integer>, <proc type string>]
36 [processor_isa: <integer>, <proc isa string>]
38 <proc error type strings>]
39 [operation: <integer>, <proc operation string>]
41 <proc flags strings>]
50 <proc type string>* := IA32/X64 | IA64
52 <proc isa string>* := IA32 | IA64 | X64
55 [cache error][, TLB error][, bus error][, micro-architectural error]
57 <proc operation string>* := unknown or generic | data read | data write | \
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/linux-5.10/Documentation/filesystems/
Dproc.rst1 .. SPDX-License-Identifier: GPL-2.0
4 The /proc Filesystem
8 /proc/sys Terrehon Bowden <terrehon@pacbell.net>, October 7 1999
11 move /proc/sys Shen Feng <shen@cn.fujitsu.com> April 1 2009
24 1.1 Process-Specific Subdirectories
26 1.3 IDE devices in /proc/ide
27 1.4 Networking info in /proc/net
29 1.6 Parallel port info in /proc/parport
30 1.7 TTY info in /proc/tty
31 1.8 Miscellaneous kernel statistics in /proc/stat
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/linux-5.10/Documentation/s390/
Dcommon_io.rst2 S/390 common I/O-Layer
9 -----------------------
17 device := {all | [!]ipldev | [!]condev | [!]<devno> | [!]<devno>-<devno>}
19 The given devices will be ignored by the common I/O-layer; no detection
24 An ignored device can be un-ignored later; see the "/proc entries"-section for
34 operator). The '!' operator will cause the I/O-layer to _not_ ignore a device.
40 cio_ignore=0.0.0023-0.0.0042,0.0.4711
47 cio_ignore=all,!0.0.4711,!0.0.fd00-0.0.fd02
54 /proc entries
55 -------------
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/linux-5.10/tools/testing/selftests/tc-testing/
Dtdc.py2 # SPDX-License-Identifier: GPL-2.0
5 tdc.py - Linux tc (Traffic Control) unit test driver
54 mn = fn[0:-3]
60 pgname = pgname[0:-3]
64 self.plugin_instances[-1].check_args(self.args, None)
89 pgd = ['plugin-lib', 'plugin-lib-custom']
133 print('testid is {}'.format(caseinfo['id']))
193 proc = subprocess.Popen(command,
200 (rawout, serr) = proc.communicate(timeout=NAMES['TIMEOUT'])
201 if proc.returncode != 0 and len(serr) > 0:
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/linux-5.10/arch/alpha/kernel/
Dsrm_env.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * srm_env.c - Access to SRM environment
6 * (C) 2001,2002,2006 by Jan-Benedict Glaw <jbglaw@lug-owl.de>
8 * This driver is a modified version of Erik Mouw's example proc
25 #define BASE_DIR "srm_environment" /* Subdir in /proc/ */
31 MODULE_AUTHOR("Jan-Benedict Glaw <jbglaw@lug-owl.de>");
37 unsigned long id; member
66 unsigned long id = (unsigned long)m->private; in srm_env_proc_show() local
71 return -ENOMEM; in srm_env_proc_show()
73 ret = callback_getenv(id, page, PAGE_SIZE); in srm_env_proc_show()
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/linux-5.10/Documentation/devicetree/bindings/mailbox/
Dst,stm32-ipcc.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: "http://devicetree.org/schemas/mailbox/st,stm32-ipcc.yaml#"
5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
16 - Fabien Dessenne <fabien.dessenne@st.com>
17 - Arnaud Pouliquen <arnaud.pouliquen@st.com>
21 const: st,stm32mp1-ipcc
31 - description: rx channel occupied
32 - description: tx channel free
33 - description: wakeup source
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/linux-5.10/drivers/nubus/
Dproc.c1 // SPDX-License-Identifier: GPL-2.0
2 /* drivers/nubus/proc.c: Proc FS interface for NuBus.
4 By David Huggins-Daines <dhd@debian.org>
6 Much code and many ideas from drivers/pci/proc.c:
11 structure in /proc analogous to the structure of the NuBus ROM
16 resources are empty files, since every resource ID requires a special
17 case (e.g. if the resource ID implies a directory or block, then its
33 * /proc/bus/nubus/devices stuff
43 fres->board->slot, fres->category, fres->type, in nubus_devices_proc_show()
44 fres->dr_sw, fres->dr_hw, fres->board->slot_addr); in nubus_devices_proc_show()
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/linux-5.10/tools/testing/selftests/kmod/
Dkmod.sh13 # under the terms of copyleft-next (version 0.3.1 or later) as published
14 # at http://copyleft-next.org/.
39 set -e
49 # TEST_ID: is the test id number
53 # Once these are enabled please leave them as-is. Write your own test,
69 # Kselftest framework requirement - SKIP code is 4.
74 if [ ! -d $DIR ]; then
84 if [ -z $DEFAULT_KMOD_DRIVER ]; then
88 if [ -z $DEFAULT_KMOD_FS ]; then
92 if [ -z $PROC_DIR ]; then
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/linux-5.10/Documentation/sound/designs/
Dprocfile.rst2 Proc Files of ALSA Drivers
10 ALSA has its own proc tree, /proc/asound. Many useful information are
15 card-specific files are stored in the ``card*`` subdirectories.
23 index, the id string, short and long descriptions.
40 ``<card>-<device>: <name>``
44 ``<card>-<device>: <id>: <name> : <sub-streams>``
61 The card-specific files are found in ``/proc/asound/card*`` directories.
62 Some drivers (e.g. cmipci) have their own proc entries for the
63 register dump, etc (e.g. ``/proc/asound/card*/cmipci`` shows the register
81 mapping by writing to this device. Read OSS-Emulation.txt for
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/linux-5.10/sound/pci/ac97/
Dac97_proc.c1 // SPDX-License-Identifier: GPL-2.0-or-later
19 * proc interface
46 snd_iprintf(buffer, "%-17s: %3d.%d dBV %c %2d/fs %s\n", in snd_ac97_proc_read_functions()
48 (info & 0x8000 ? -1 : 1) * ((info & 0x7000) >> 12) * 3 / 2, in snd_ac97_proc_read_functions()
50 info & 0x0400 ? 'X' : '-', in snd_ac97_proc_read_functions()
101 snd_ac97_get_name(NULL, ac97->id, name, 0); in snd_ac97_proc_read_main()
102 snd_iprintf(buffer, "%d-%d/%d: %s\n\n", ac97->addr, ac97->num, subidx, name); in snd_ac97_proc_read_main()
104 if ((ac97->scaps & AC97_SCAP_AUDIO) == 0) in snd_ac97_proc_read_main()
108 ac97->subsystem_vendor); in snd_ac97_proc_read_main()
110 ac97->subsystem_device); in snd_ac97_proc_read_main()
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/linux-5.10/Documentation/sound/hd-audio/
Dnotes.rst2 More Notes on HD-Audio Driver
11 HD-audio is the new standard on-board audio component on modern PCs
12 after AC97. Although Linux has been supporting HD-audio since long
15 This document explains the brief trouble-shooting and debugging
16 methods for the HD-audio hardware.
18 The HD-audio component consists of two parts: the controller chip and
19 the codec chips on the HD-audio bus. Linux provides a single driver
20 for all controllers, snd-hda-intel. Although the driver name contains
21 a word of a well-known hardware vendor, it's not specific to it but for
22 all controller chips by other companies. Since the HD-audio
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/linux-5.10/arch/arm/mm/
Dproc-v6.S1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * linux/arch/arm/mm/proc-v6.S
14 #include <asm/asm-offsets.h>
16 #include <asm/pgtable-hwdef.h>
18 #include "proc-macros.S"
52 * - loc - location to jump to for soft reset
75 mcr p15, 0, r1, c7, c10, 4 @ DWB - WFI may enter a low-power mode
91 * - pgd_phys - physical address of new TTB
94 * - we are not using split page tables
99 mmid r1, r1 @ get mm->context.id
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/linux-5.10/drivers/gpu/drm/amd/amdkfd/
Dkfd_process.c30 #include <linux/amd-iommu.h>
58 /* Ordered, single-threaded workqueue for restoring evicted
61 * their BOs and result in a live-lock situation where processes
114 pdd = workarea->pdd; in kfd_sdma_activity_worker()
117 dqm = pdd->dev->dqm; in kfd_sdma_activity_worker()
118 qpd = &pdd->qpd; in kfd_sdma_activity_worker()
125 * we loop over all SDMA queues and get their counts from user-space. in kfd_sdma_activity_worker()
131 * 1. Create a temporary list of SDMA queue nodes from the qpd->queues_list, in kfd_sdma_activity_worker()
137 * from the qpd->queues_list. in kfd_sdma_activity_worker()
138 * 3. Do a second pass over qpd->queues_list to check if any nodes got deleted. in kfd_sdma_activity_worker()
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/linux-5.10/drivers/rtc/
Dproc.c1 // SPDX-License-Identifier: GPL-2.0
3 * RTC subsystem, proc interface
5 * Copyright (C) 2005-06 Tower Technologies
16 #include "rtc-core.h"
26 size = scnprintf(name, NAME_SIZE, "rtc%d", rtc->id); in is_rtc_hctosys()
35 return (rtc->id == 0); in is_rtc_hctosys()
42 struct rtc_device *rtc = seq->private; in rtc_proc_show()
43 const struct rtc_class_ops *ops = rtc->ops; in rtc_proc_show()
64 (rtc->uie_rtctimer.enabled) ? "yes" : "no"); in rtc_proc_show()
66 (rtc->pie_enabled) ? "yes" : "no"); in rtc_proc_show()
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/linux-5.10/Documentation/bpf/
Ds390.rst12 2. One-time setup
27 --variant=minbase \
28 --include=sudo \
30 ./s390-toolchain
31 sudo mount --rbind /dev ./s390-toolchain/dev
32 sudo mount --rbind /proc ./s390-toolchain/proc
33 sudo mount --rbind /sys ./s390-toolchain/sys
34 sudo chroot ./s390-toolchain
38 sudo dpkg --add-architecture s390x
39 sudo apt-get update
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/linux-5.10/tools/perf/util/
Dnamespaces.c1 // SPDX-License-Identifier: GPL-2.0-only
33 const char *perf_ns__name(unsigned int id) in perf_ns__name() argument
35 if (id >= ARRAY_SIZE(perf_ns__names)) in perf_ns__name()
37 return perf_ns__names[id]; in perf_ns__name()
43 u64 link_info_size = ((event ? event->nr_namespaces : NR_NAMESPACES) * in namespaces__new()
50 namespaces->end_time = -1; in namespaces__new()
53 memcpy(namespaces->link_info, event->link_info, link_info_size); in namespaces__new()
73 int rv = -1; in nsinfo__init()
75 if (snprintf(oldns, PATH_MAX, "/proc/self/ns/mnt") >= PATH_MAX) in nsinfo__init()
78 if (asprintf(&newns, "/proc/%d/ns/mnt", nsi->pid) == -1) in nsinfo__init()
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/linux-5.10/tools/testing/selftests/sysctl/
Dsysctl.sh12 # under the terms of copyleft-next (version 0.3.1 or later) as published
13 # at http://copyleft-next.org/.
15 # This performs a series tests against the proc sysctl interface.
17 # Kselftest framework requirement - SKIP code is 4.
29 # TEST_ID: is the test id number
34 # Once these are enabled please leave them as-is. Write your own test,
46 if [ -z $DIR ]; then
49 if [ -z $DEFAULT_NUM_TESTS ]; then
52 if [ -z $SYSCTL ]; then
53 SYSCTL="/proc/sys/debug/test_sysctl"
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/linux-5.10/tools/testing/selftests/bpf/prog_tests/
Dns_current_pid_tgid.c1 // SPDX-License-Identifier: GPL-2.0
27 __u64 id; in test_ns_current_pid_tgid() local
50 id = (__u64) tid << 32 | pid; in test_ns_current_pid_tgid()
51 bss.user_pid_tgid = id; in test_ns_current_pid_tgid()
53 if (CHECK_FAIL(stat("/proc/self/ns/pid", &st))) { in test_ns_current_pid_tgid()
54 perror("Failed to stat /proc/self/ns/pid"); in test_ns_current_pid_tgid()
79 if (CHECK(id != bss.pid_tgid, "Compare user pid/tgid vs. bpf pid/tgid", in test_ns_current_pid_tgid()
80 "User pid/tgid %llu BPF pid/tgid %llu\n", id, bss.pid_tgid)) in test_ns_current_pid_tgid()
/linux-5.10/drivers/staging/media/hantro/
Dhantro_drv.c1 // SPDX-License-Identifier: GPL-2.0
9 * Based on s5p-mfc driver by Samsung Electronics Co., Ltd.
22 #include <media/v4l2-event.h>
23 #include <media/v4l2-mem2mem.h>
24 #include <media/videobuf2-core.h>
25 #include <media/videobuf2-vmalloc.h>
31 #define DRIVER_NAME "hantro-vpu"
36 "Debug level - higher value produces more verbose messages");
38 void *hantro_get_ctrl(struct hantro_ctx *ctx, u32 id) in hantro_get_ctrl() argument
42 ctrl = v4l2_ctrl_find(&ctx->ctrl_handler, id); in hantro_get_ctrl()
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/linux-5.10/arch/ia64/kernel/
Dsalinfo.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Creates entries in /proc/sal for various system features.
8 * Copyright (c) 2003 Hewlett-Packard Co
17 * Cache the record across multi-block reads from user space.
36 * Replace the counting semaphore with a mutex and a test if the cpumask is non-empty.
55 MODULE_DESCRIPTION("/proc interface to IA-64 SAL features");
59 const char *name; /* name of the proc entry */
65 * List {name,feature} pairs for every entry in /proc/sal/<feature>
85 ARRAY_SIZE(salinfo_entries) + /* /proc/sal/bus_lock */
86 ARRAY_SIZE(salinfo_log_name) + /* /proc/sal/{mca,...} */
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/linux-5.10/drivers/macintosh/
Dmac_hid.c1 // SPDX-License-Identifier: GPL-2.0-only
37 return -ENOMEM; in mac_hid_create_emumouse()
39 lockdep_set_class(&mac_hid_emumouse_dev->event_lock, in mac_hid_create_emumouse()
41 lockdep_set_class(&mac_hid_emumouse_dev->mutex, in mac_hid_create_emumouse()
44 mac_hid_emumouse_dev->name = "Macintosh mouse button emulation"; in mac_hid_create_emumouse()
45 mac_hid_emumouse_dev->id.bustype = BUS_ADB; in mac_hid_create_emumouse()
46 mac_hid_emumouse_dev->id.vendor = 0x0001; in mac_hid_create_emumouse()
47 mac_hid_emumouse_dev->id.product = 0x0001; in mac_hid_create_emumouse()
48 mac_hid_emumouse_dev->id.version = 0x0100; in mac_hid_create_emumouse()
50 mac_hid_emumouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); in mac_hid_create_emumouse()
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