| /linux/drivers/gpu/drm/i915/display/ |
| H A D | intel_pmdemand.c | 1 // SPDX-License-Identifier: MIT
24 u8 active_dbufs; /* pre-Xe3 only */
31 u8 scalers; /* pre-Xe3 only */
57 pmdemand_state = kmemdup(obj->state, sizeof(*pmdemand_state), GFP_KERNEL); in intel_pmdemand_duplicate_state()
61 return &pmdemand_state->base; in intel_pmdemand_duplicate_state()
81 &display->pmdemand.obj); in intel_atomic_get_pmdemand_state()
95 &display->pmdemand.obj); in intel_atomic_get_old_pmdemand_state()
109 &display->pmdemand.obj); in intel_atomic_get_new_pmdemand_state()
123 return -ENOMEM; in intel_pmdemand_init()
125 intel_atomic_global_obj_init(display, &display->pmdemand.obj, in intel_pmdemand_init()
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| /linux/Documentation/devicetree/bindings/media/i2c/ |
| H A D | st,st-mipid02.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/i2c/st,st-mipid02.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics MIPID02 CSI-2 to PARALLEL bridge
10 - Benjamin Mugnier <benjamin.mugnier@foss.st.com>
11 - Sylvain Petinot <sylvain.petinot@foss.st.com>
14 MIPID02 has two CSI-2 input ports, only one of those ports can be
15 active at a time. Active port input stream will be de-serialized
17 CSI-2 first input port is a dual lane 800Mbps per lane whereas CSI-2
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| /linux/include/linux/ |
| H A D | plist.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Descending-priority-sorted double-linked list
5 * (C) 2002-2003 Intel Corp
6 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>.
8 * 2001-2005 (c) MontaVista Software, Inc.
11 * (C) 2005 Thomas Gleixner <tglx@linutronix.de>
14 * Oleg Nesterov <oleg@tv-sign.ru>
18 * This is a priority-sorted list of nodes; each node has a
27 * - The tier 1 list is the prio_list, different priority nodes.
29 * - The tier 2 list is the node_list, serialized nodes.
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| H A D | sched.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
41 #include <linux/posix-timers_types.h>
91 * We have two separate sets of flags: task->__state
92 * is about runnability, while task->exit_state are
98 /* Used in tsk->__state: */
104 /* Used in tsk->exit_state: */
108 /* Used in tsk->__state again: */
121 #define TASK_ANY (TASK_STATE_MAX-1)
144 #define task_is_running(task) (READ_ONCE((task)->__state) == TASK_RUNNING)
146 #define task_is_traced(task) ((READ_ONCE(task->jobctl) & JOBCTL_TRACED) != 0)
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| H A D | interrupt.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
44 * IRQF_SHARED - allow sharing the irq among several devices
45 * IRQF_PROBE_SHARED - set by callers when they expect sharing mismatches to occur
46 * IRQF_TIMER - Flag to mark this interrupt as timer interrupt
47 * IRQF_PERCPU - Interrupt is per cpu
48 * IRQF_NOBALANCING - Flag to exclude this interrupt from irq balancing
49 * IRQF_IRQPOLL - Interrupt is used for polling (only the interrupt that is
52 * IRQF_ONESHOT - Interrupt is not reenabled after the hardirq handler finished.
55 * IRQF_NO_SUSPEND - Do not disable this IRQ during suspend. Does not guarantee
57 * state. See Documentation/power/suspend-and-interrupts.rst
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| /linux/arch/s390/appldata/ |
| H A D | appldata_mem.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Data gathering module for Linux-VM Monitor Stream, Stage 1.
8 * Author: Gerald Schaefer <gerald.schaefer@de.ibm.com>
23 #define P2K(x) ((x) << (PAGE_SHIFT - 10)) /* Converts #Pages to KB */
58 // New in 2.6 -->
62 // <-- New in 2.6
76 * serialized through the appldata_ops_mutex and can use static in appldata_get_mem_data()
83 mem_data->sync_count_1++; in appldata_get_mem_data()
86 mem_data->pgpgin = ev[PGPGIN] >> 1; in appldata_get_mem_data()
87 mem_data->pgpgout = ev[PGPGOUT] >> 1; in appldata_get_mem_data()
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| /linux/Documentation/core-api/ |
| H A D | cpu_hotplug.rst | 6 :Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
11 Thomas Gleixner <tglx@linutronix.de>
26 A more novel use of CPU-hotplug support is its use today in suspend resume
27 support for SMP. Dual-core and HT support makes even a laptop run SMP kernels
75 from the map depending on the event is hot-add/hot-remove. There are currently
80 be read-only for most use. When setting up per-cpu resources almost always use
94 $ ls -lh /sys/devices/system/cpu
96 drwxr-xr-x 9 root root 0 Dec 21 16:33 cpu0
97 drwxr-xr-x 9 root root 0 Dec 21 16:33 cpu1
98 drwxr-xr-x 9 root root 0 Dec 21 16:33 cpu2
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| /linux/lib/reed_solomon/ |
| H A D | reed_solomon.c | 1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2004 Thomas Gleixner (tglx@linutronix.de)
58 * codec_init - Initialize a Reed-Solomon codec
59 * @symsize: symbol size, bits (1-8)
80 INIT_LIST_HEAD(&rs->list); in codec_init()
82 rs->mm = symsize; in codec_init()
83 rs->nn = (1 << symsize) - 1; in codec_init()
84 rs->fcr = fcr; in codec_init()
85 rs->prim = prim; in codec_init()
86 rs->nroots = nroots; in codec_init()
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| /linux/kernel/ |
| H A D | async.c | 1 // SPDX-License-Identifier: GPL-2.0-only
6 * Author: Arjan van de Ven <arjan@linux.intel.com>
16 decoupled and not strictly serialized.
21 have their externally visible parts happen sequentially and in-order.
22 (not unlike how out-of-order CPUs retire their instructions in order)
98 if (!list_empty(&domain->pending)) in lowest_in_progress()
99 first = list_first_entry(&domain->pending, in lowest_in_progress()
108 ret = first->cookie; in lowest_in_progress()
125 pr_debug("calling %lli_%pS @ %i\n", (long long)entry->cookie, in async_run_entry_fn()
126 entry->func, task_pid_nr(current)); in async_run_entry_fn()
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| /linux/Documentation/scheduler/ |
| H A D | completion.rst | 2 Completions - "wait for completion" barrier APIs
6 -------------
10 race-free solution to this problem. Semantically they are somewhat like a
11 pthread_barrier() and have similar use-cases.
14 misuse of locks/semaphores and busy-loops. Any time you think of using
34 ------
38 - the initialization of the 'struct completion' synchronization object
39 - the waiting part through a call to one of the variants of wait_for_completion(),
40 - the signaling side through a call to complete() or complete_all().
57 This provides the ->wait waitqueue to place tasks on for waiting (if any), and
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| /linux/Documentation/virt/kvm/x86/ |
| H A D | timekeeping.rst | 1 .. 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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| /linux/net/netfilter/ipset/ |
| H A D | ip_set_core.c | 1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
3 * Patrick Schaaf <bof@bof.de>
4 * Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@netfilter.org>
57 rcu_dereference_protected((inst)->ip_set_list, \
60 (inst)->is_deleted)
64 rcu_dereference_raw((inst)->ip_set_list)[id]
70 * serialized by ip_set_type_mutex.
94 if (STRNCMP(type->name, name) && in find_set_type()
95 (type->family == family || in find_set_type()
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| /linux/arch/x86/kernel/cpu/microcode/ |
| H A D | core.c | 1 // 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>
13 * (C) 2015 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
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| /linux/Documentation/driver-api/soundwire/ |
| H A D | stream.rst | 24 -------------------------
26 -------------------------
31 +---------------+ Clock Signal +---------------+
32 | Master +----------------------------------+ Slave |
36 | L + R +----------------------------------+ L + R |
38 +---------------+ +-----------------------> +---------------+
45 +---------------+ Clock Signal +---------------+
46 | Master +----------------------------------+ Slave |
50 | L + R +----------------------------------+ L + R |
52 +---------------+ <-----------------------+ +---------------+
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| /linux/include/uapi/linux/ |
| H A D | rkisp1-config.h | 1 /* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR MIT) */
16 /* Sensor De-gamma */
44 /* Denoise Pre-Filter */
46 /* Denoise Pre-Filter Strength */
129 /* 0-2 for sets 1-3 */
181 * enum rkisp1_cif_isp_version - ISP variants
221 * enum rkisp1_cif_isp_exp_ctrl_autostop - stop modes
231 * enum rkisp1_cif_isp_exp_meas_mode - Exposure measure mode
240 /*---------- PART1: Input Parameters ------------*/
243 * struct rkisp1_cif_isp_window - measurement window.
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| /linux/fs/ |
| H A D | dcache.c | 1 // SPDX-License-Identifier: GPL-2.0-only
6 * (C) 1997 Thomas Schoebel-Theuer,
13 * The dcache is a master of the icache - whenever a dcache entry
38 #include <asm/runtime-const.h>
42 * dcache->d_inode->i_lock protects:
43 * - i_dentry, d_u.d_alias, d_inode of aliases
45 * - the dcache hash table
47 * - the s_roots list (see __d_drop)
48 * dentry->d_sb->s_dentry_lru_lock protects:
49 * - the dcache lru lists and counters
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| /linux/kernel/locking/ |
| H A D | rtmutex.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * RT-Mutexes: simple blocking mutual exclusion locks with PI support
7 * Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
8 * Copyright (C) 2005-2006 Timesys Corp., Thomas Gleixner <tglx@timesys.com>
17 * See Documentation/locking/rt-mutex-design.rst for details.
68 * lock->owner state tracking:
70 * lock->owner holds the task_struct pointer of the owner. Bit 0
81 * possible when bit 0 of lock->owner is 0.
84 * with ->wait_lock is held. To prevent any fast path cmpxchg to the lock,
109 * lock->wait_lock is held but explicit acquire semantics are needed in rt_mutex_set_owner()
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| /linux/drivers/s390/crypto/ |
| H A D | zcrypt_api.c | 1 // SPDX-License-Identifier: GPL-2.0+
6 * Cornelia Huck <cornelia.huck@de.ibm.com>
8 * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
9 * Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
10 * Ralph Wuerthner <rwuerthn@de.ibm.com>
84 list_add_tail(&zops->list, &zcrypt_ops_list); in zcrypt_msgtype_register()
89 list_del_init(&zops->list); in zcrypt_msgtype_unregister()
97 if (zops->variant == variant && in zcrypt_msgtype()
98 (!strncmp(zops->name, name, sizeof(zops->name)))) in zcrypt_msgtype()
162 return -ERESTARTSYS; in ioctlmask_show()
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| /linux/drivers/hwtracing/stm/ |
| H A D | core.c | 1 // SPDX-License-Identifier: GPL-2.0
43 ret = sprintf(buf, "%u %u\n", stm->data->sw_start, stm->data->sw_end); in masters_show()
57 ret = sprintf(buf, "%u\n", stm->data->sw_nchannels); in channels_show()
71 ret = sprintf(buf, "%u\n", stm->data->hw_override); in hw_override_show()
93 * stm_find_device() - find stm device by name
117 if (!try_module_get(stm->owner)) { in stm_find_device()
127 * stm_put_device() - drop references on the stm device
135 module_put(stm->owner); in stm_put_device()
136 put_device(&stm->dev); in stm_put_device()
140 * Internally we only care about software-writable masters here, that is the
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| /linux/kernel/sched/ |
| H A D | core.c | 1 // SPDX-License-Identifier: GPL-2.0-only
7 * Copyright (C) 1991-2002 Linus Torvalds
8 * Copyright (C) 1998-2024 Ingo Molnar, Red Hat
72 # include <linux/entry-common.h>
97 #include "../../io_uring/io-wq.h"
163 if (p->sched_class == &stop_sched_class) /* trumps deadline */ in __task_prio()
164 return -2; in __task_prio()
166 if (p->dl_server) in __task_prio()
167 return -1; /* deadline */ in __task_prio()
169 if (rt_or_dl_prio(p->prio)) in __task_prio()
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| /linux/kernel/time/ |
| H A D | tick-sched.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright(C) 2005-2006, Thomas Gleixner <tglx@linutronix.de>
4 * Copyright(C) 2005-2007, Red Hat, Inc., Ingo Molnar
5 * Copyright(C) 2006-2007 Timesys Corp., Thomas Gleixner
27 #include <linux/posix-timers.h>
33 #include "tick-internal.h"
38 * Per-CPU nohz control structure
63 * 64-bit can do a quick check without holding the jiffies lock and in tick_do_update_jiffies64()
67 * 32-bit cannot do that because the store of 'tick_next_period' in tick_do_update_jiffies64()
68 * consists of two 32-bit stores, and the first store could be in tick_do_update_jiffies64()
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| H A D | hrtimer.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright(C) 2005-2006, Thomas Gleixner <tglx@linutronix.de>
4 * Copyright(C) 2005-2007, Red Hat, Inc., Ingo Molnar
5 * Copyright(C) 2006-2007 Timesys Corp., Thomas Gleixner
7 * High-resolution kernel timers
9 * In contrast to the low-resolution timeout API, aka timer wheel,
50 #include "tick-internal.h"
54 * cpu_base->active
57 #define HRTIMER_ACTIVE_HARD ((1U << MASK_SHIFT) - 1)
122 [0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES,
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| /linux/arch/m68k/kernel/ |
| H A D | head.S | 1 /* SPDX-License-Identifier: GPL-2.0-or-later
2 ** -*- mode: asm -*-
4 ** head.S -- This file contains the initial boot code for the
14 ** Atari support by Andreas Schwab, using ideas of Robert de Vries
20 ** ++ Bjoern & Roman: ATARI-68040 support for the Medusa
23 ** Magnum- and FX-alternate ram
26 ** for linux-2.1.115
28 ** 2004/05/13 Kars de Jong: Finalised HP300 support
49 * 1) Remove register dependency through-out the file.
57 * write-ups on the structure of the file, and the features of the
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| /linux/fs/proc/ |
| H A D | base.c | 1 // SPDX-License-Identifier: GPL-2.0
9 * 1999, Al Viro. Rewritten. Now it covers the whole per-process part.
11 * we allocate and fill in-core inodes upon lookup. They don't even
18 * 17-Jan-2005
25 * Embedded Linux Lab - 10LE Instituto Nokia de Tecnologia - INdT
35 * 21-Feb-2005
36 * Embedded Linux Lab - 10LE Instituto Nokia de Tecnologia - INdT
40 * 10-Mar-2005
41 * 10LE Instituto Nokia de Tecnologia - INdT:
61 #include <linux/generic-radix-tree.h>
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| /linux/drivers/gpu/drm/panthor/ |
| H A D | panthor_mmu.c | 1 // SPDX-License-Identifier: GPL-2.0 or MIT
16 #include <linux/dma-mapping.h>
20 #include <linux/io-pgtable.h>
42 * struct panthor_as_slot - Address space slot
50 * struct panthor_mmu - MMU related data
59 * us to re-assign them to re-assign slots on-demand.
105 * struct panthor_vm_pool - VM pool object
113 * struct panthor_vma - GPU mapping object
133 * struct panthor_vm_op_ctx - VM operation context
135 * With VM operations potentially taking place in a dma-signaling path, we
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