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/linux/arch/riscv/
H A DKconfig.errata20 non-standard handling on non-coherent operations on Andes cores.
22 If you don't know what to do here, say "Y".
58 bool "Apply SiFive errata CIP-453"
62 This will apply the SiFive CIP-453 errata to add sign extension
66 If you don't know what to do here, say "Y".
69 bool "Apply SiFive errata CIP-1200"
73 This will apply the SiFive CIP-1200 errata to repalce all
77 If you don't know what to do here, say "Y".
91 caches that are non-coherent with respect to peripheral DMAs.
92 It was designed before the Zicbom extension so needs non-standard
[all …]
H A DKconfig.vendor16 If you don't know what to do here, say Y.
29 If you don't know what to do here, say Y.
42 If you don't know what to do here, say Y.
45 menu "T-Head" menu
47 bool "T-Head vendor extension support"
51 Say N here to disable detection of and support for all T-Head vendor
52 extensions. Without this option enabled, T-Head vendor extensions will
55 If you don't know what to do here, say Y.
65 in the kernel. This will disable vector for any T-Head board that
68 If you don't know what to do here, say Y.
/linux/arch/x86/platform/uv/
H A Duv_time.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Copyright (c) 2009-2013 Silicon Graphics, Inc. All Rights Reserved.
38 .irq = -1,
92 /* Setup interrupt and return non-zero if early expiration occurred. */
101 uv_write_global_mmr64(pnode, UVH_INT_CMPB, -1L); in uv_setup_intr()
121 * Per-cpu timer tracking routines
134 /* Allocate per-node list of cpu timer expiration times. */
141 return -ENOMEM; in uv_rtc_allocate_timers()
147 struct uv_rtc_timer_head *head = blade_info[bid]; in uv_rtc_allocate_timers() local
149 if (!head) { in uv_rtc_allocate_timers()
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/linux/drivers/gpu/drm/radeon/
H A Dmkregtable.c1 // SPDX-License-Identifier: MIT
20 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
22 * container_of - cast a member of a structure out to the containing structure
29 const typeof(((type *)0)->member)*__mptr = (ptr); \
30 (type *)((char *)__mptr - offsetof(type, member)); })
39 * using the generic single-entry routines.
49 list->next = list; in INIT_LIST_HEAD()
50 list->prev = list; in INIT_LIST_HEAD()
63 next->prev = new; in __list_add()
64 new->next = next; in __list_add()
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/linux/kernel/futex/
H A Dsyscalls.c1 // SPDX-License-Identifier: GPL-2.0-or-later
12 * Implementation: user-space maintains a per-thread list of locks it
17 * per-thread. Userspace also maintains a per-thread 'list_op_pending'
24 * sys_set_robust_list() - Set the robust-futex list head of a task
25 * @head: pointer to the list-head
26 * @len: length of the list-head, as userspace expects
28 SYSCALL_DEFINE2(set_robust_list, struct robust_list_head __user *, head, in SYSCALL_DEFINE2() argument
34 if (unlikely(len != sizeof(*head))) in SYSCALL_DEFINE2()
35 return -EINVAL; in SYSCALL_DEFINE2()
37 current->robust_list = head; in SYSCALL_DEFINE2()
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/linux/net/sctp/
H A Doutput.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (c) 1999-2000 Cisco, Inc.
5 * Copyright (c) 1999-2001 Motorola, Inc.
13 * lksctp developers <linux-sctp@vger.kernel.org>
60 packet->size = packet->overhead; in sctp_packet_reset()
62 packet->has_cookie_echo = 0; in sctp_packet_reset()
63 packet->has_sack = 0; in sctp_packet_reset()
64 packet->has_data = 0; in sctp_packet_reset()
65 packet->has_auth = 0; in sctp_packet_reset()
66 packet->ipfragok = 0; in sctp_packet_reset()
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/linux/Documentation/dev-tools/
H A Dcheckuapi.rst1 .. SPDX-License-Identifier: GPL-2.0-only
7 The UAPI checker (``scripts/check-uapi.sh``) is a shell script which
8 checks UAPI header files for userspace backwards-compatibility across
14 This section will describe the options with which ``check-uapi.sh``
19 check-uapi.sh [-b BASE_REF] [-p PAST_REF] [-j N] [-l ERROR_LOG] [-i] [-q] [-v]
23 -b BASE_REF Base git reference to use for comparison. If unspecified or empty,
25 dirty changes, HEAD will be used.
26 -p PAST_REF Compare BASE_REF to PAST_REF (e.g. -p v6.1). If unspecified or empty,
29 -j JOBS Number of checks to run in parallel (default: number of CPU cores).
30 -l ERROR_LOG Write error log to file (default: no error log is generated).
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/linux/drivers/block/aoe/
H A Daoecmd.c10 #include <linux/blk-mq.h>
54 struct list_head head; member
71 skb->protocol = __constant_htons(ETH_P_AOE); in new_skb()
80 struct list_head *head, *pos, *nx; in getframe_deferred() local
83 head = &d->rexmitq; in getframe_deferred()
84 list_for_each_safe(pos, nx, head) { in getframe_deferred()
85 f = list_entry(pos, struct frame, head); in getframe_deferred()
86 if (f->tag == tag) { in getframe_deferred()
98 struct list_head *head, *pos, *nx; in getframe() local
102 head = &d->factive[n]; in getframe()
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H A Daoedev.c8 #include <linux/blk-mq.h>
18 static void freetgt(struct aoedev *d, struct aoetgt *t);
29 * - partitions,
30 * - slots per shelf,
31 * - or shelves,
52 error = -1; in minor_get_dyn()
75 error = -1; in minor_get_static()
84 error = -1; in minor_get_static()
93 error = -1; in minor_get_static()
143 d->ref--; in aoedev_put()
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/linux/lib/
H A Dplist.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Descending-priority-sorted double-linked list
7 * (C) 2002-2003 Intel Corp
8 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>.
10 * 2001-2005 (c) MontaVista Software, Inc.
16 * Oleg Nesterov <oleg@tv-sign.ru>
32 static void plist_check_prev_next(struct list_head *t, struct list_head *p, in plist_check_prev_next() argument
35 WARN(n->prev != p || p->next != n, in plist_check_prev_next()
39 t, t->next, t->prev, in plist_check_prev_next()
40 p, p->next, p->prev, in plist_check_prev_next()
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/linux/drivers/net/ethernet/meta/fbnic/
H A Dfbnic_txrx.c1 // SPDX-License-Identifier: GPL-2.0
38 #define FBNIC_XMIT_CB(__skb) ((struct fbnic_xmit_cb *)((__skb)->cb))
44 unsigned long csr_base = (unsigned long)ring->doorbell; in fbnic_ring_csr_base()
46 csr_base &= ~(FBNIC_QUEUE_STRIDE * sizeof(u32) - 1); in fbnic_ring_csr_base()
66 * fbnic_ts40_to_ns() - convert descriptor timestamp to PHC time
84 s = u64_stats_fetch_begin(&fbn->time_seq); in fbnic_ts40_to_ns()
85 offset = READ_ONCE(fbn->time_offset); in fbnic_ts40_to_ns()
86 } while (u64_stats_fetch_retry(&fbn->time_se in fbnic_ts40_to_ns()
549 unsigned int head = ring->head; fbnic_clean_twq0() local
637 unsigned int head = ring->head; fbnic_clean_twq1() local
687 int head; fbnic_clean_tsq() local
800 u32 head = cmpl->head; fbnic_clean_tcq() local
857 unsigned int head = ring->head; fbnic_clean_bdq() local
1236 u32 head = rcq->head; fbnic_clean_rcq() local
2229 int i, t; __fbnic_nv_disable() local
2391 int j, t; fbnic_nv_flush() local
2442 int j, t; fbnic_nv_fill() local
2681 int j, t; __fbnic_nv_enable() local
2766 int i, j, t; fbnic_napi_depletion_check() local
2869 int i, t; fbnic_queue_stop() local
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/linux/kernel/
H A Dsoftirq.c1 // SPDX-License-Identifier: GPL-2.0-only
7 * Rewritten. Old one was good in 2.2, but in 2.3 it was immoral. --ANK (990903)
38 - No shared variables, all the data are CPU local.
39 - If a softirq needs serialization, let it serialize itself
41 - Even if softirq is serialized, only local cpu is marked for
47 - NET RX softirq. It is multithreaded and does not require
49 - NET TX softirq. It kicks software netdevice queues, hence
52 - Tasklets: serialized wrt itself.
71 * but we also don't want to introduce a worst case 1/HZ latency
97 * - count is changed by SOFTIRQ_OFFSET on entering or leaving softirq
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/linux/net/bpf/
H A Dtest_run.c1 // SPDX-License-Identifier: GPL-2.0-only
20 #include <linux/error-injection.h>
36 static void bpf_test_timer_enter(struct bpf_test_timer *t) in bpf_test_timer_enter() argument
40 t->time_start = ktime_get_ns(); in bpf_test_timer_enter()
43 static void bpf_test_timer_leave(struct bpf_test_timer *t) in bpf_test_timer_leave() argument
46 t->time_start = 0; in bpf_test_timer_leave()
50 static bool bpf_test_timer_continue(struct bpf_test_timer *t, int iterations, in bpf_test_timer_continue() argument
54 t->i += iterations; in bpf_test_timer_continue()
55 if (t->i >= repeat) { in bpf_test_timer_continue()
57 t->time_spent += ktime_get_ns() - t->time_start; in bpf_test_timer_continue()
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/linux/drivers/pci/hotplug/
H A Dcpqphp_ctrl.c1 // SPDX-License-Identifier: GPL-2.0+
6 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
72 func = cpqhp_slot_find(ctrl->bus, in handle_switch_change()
73 (hp_slot + ctrl->slot_device_offset), 0); in handle_switch_change()
78 taskInfo = &(ctrl->event_queue[ctrl->next_event]); in handle_switch_change()
79 ctrl->next_event = (ctrl->next_event + 1) % 10; in handle_switch_change()
80 taskInfo->hp_slot = hp_slot; in handle_switch_change()
84 temp_word = ctrl->ctrl_int_comp >> 16; in handle_switch_change()
85 func->presence_save = (temp_word >> hp_slot) & 0x01; in handle_switch_change()
86 func->presence_save |= (temp_word >> (hp_slot + 7)) & 0x02; in handle_switch_change()
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/linux/kernel/events/
H A Dring_buffer.c1 // SPDX-License-Identifier: GPL-2.0
3 * Performance events ring-buffer code:
6 * Copyright (C) 2008-2011 Red Hat, Inc., Ingo Molnar
7 * Copyright (C) 2008-2011 Red Hat, Inc., Peter Zijlstra
22 atomic_set(&handle->rb->poll, EPOLLIN | EPOLLRDNORM); in perf_output_wakeup()
24 handle->event->pending_wakeup = 1; in perf_output_wakeup()
26 if (*perf_event_fasync(handle->event) && !handle->event->pending_kill) in perf_output_wakeup()
27 handle->event->pending_kill = POLL_IN; in perf_output_wakeup()
29 irq_work_queue(&handle->event->pending_irq); in perf_output_wakeup()
33 * We need to ensure a later event_id doesn't publish a head when a former
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/linux/arch/powerpc/platforms/pseries/
H A Dhvcserver.c1 // SPDX-License-Identifier: GPL-2.0-or-later
28 * functions aren't performance sensitive, so this conversion isn't an
37 return -EINVAL; in hvcs_convert()
39 return -EIO; in hvcs_convert()
47 return -EBUSY; in hvcs_convert()
50 return -EPERM; in hvcs_convert()
55 * hvcs_free_partner_info - free pi allocated by hvcs_get_partner_info
56 * @head: list_head pointer for an allocated list of partner info structs to
62 int hvcs_free_partner_info(struct list_head *head) in hvcs_free_partner_info() argument
67 if (!head) in hvcs_free_partner_info()
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/linux/fs/xfs/
H A Dxfs_log_recover.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2000-2006 Silicon Graphics, Inc.
51 * Verify the log-relative block number and length in basic blocks are valid for
61 if (blk_no < 0 || blk_no >= log->l_logBBsize) in xlog_verify_bno()
63 if (bbcount <= 0 || (blk_no + bbcount) > log->l_logBBsize) in xlog_verify_bno()
78 * Pass log block 0 since we don't have an addr yet, buffer will be in xlog_alloc_buffer()
81 if (XFS_IS_CORRUPT(log->l_mp, !xlog_verify_bno(log, 0, nbblks))) { in xlog_alloc_buffer()
82 xfs_warn(log->l_m in xlog_alloc_buffer()
194 xlog_header_check_dump(xfs_mount_t * mp,xlog_rec_header_t * head) xlog_header_check_dump() argument
202 xlog_header_check_dump(mp,head) global() argument
211 xlog_header_check_recover(xfs_mount_t * mp,xlog_rec_header_t * head) xlog_header_check_recover() argument
242 xlog_header_check_mount(xfs_mount_t * mp,xlog_rec_header_t * head) xlog_header_check_mount() argument
403 xlog_rec_header_t *head = NULL; xlog_find_verify_log_record() local
2091 xlog_recover_add_item(struct list_head * head) xlog_recover_add_item() argument
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/linux/net/sched/
H A Dcls_fw.c1 // SPDX-License-Identifier: GPL-2.0-or-later
55 struct fw_head *head = rcu_dereference_bh(tp->root); in fw_classify() local
58 u32 id = skb->mark; in fw_classify()
60 if (head != NULL) { in fw_classify()
61 id &= head->mask; in fw_classify()
63 for (f = rcu_dereference_bh(head->ht[fw_hash(id)]); f; in fw_classify()
64 f = rcu_dereference_bh(f->next)) { in fw_classify()
65 if (f->id == id) { in fw_classify()
66 *res = f->res; in fw_classify()
67 if (!tcf_match_indev(skb, f->ifindex)) in fw_classify()
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H A Dcls_cgroup.c1 // SPDX-License-Identifier: GPL-2.0-or-later
30 struct cls_cgroup_head *head = rcu_dereference_bh(tp->root); in cls_cgroup_classify() local
33 if (unlikely(!head)) in cls_cgroup_classify()
34 return -1; in cls_cgroup_classify()
36 return -1; in cls_cgroup_classify()
37 if (!tcf_em_tree_match(skb, &head->ematches, NULL)) in cls_cgroup_classify()
38 return -1; in cls_cgroup_classify()
40 res->classid = classid; in cls_cgroup_classify()
41 res->class = 0; in cls_cgroup_classify()
43 return tcf_exts_exec(skb, &head->exts, res); in cls_cgroup_classify()
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/linux/tools/perf/scripts/python/
H A Dcompaction-times.py14 … "usage: perf script report compaction-times.py -- [-h] [-u] [-p|-pv] [-t | [-m] [-fs] [-ms]] [pid…
44 def set_type(t): argument
46 opt_disp = (t if opt_disp == topt.DISP_ALL else opt_disp|t)
52 return "%dns" % ns if opt_ns else "%dus" % (round(ns, -3) / 1000)
97 self.ns = ns(secs, nsecs) - self.ns
121 head = cls.heads[pid]
122 filtered = head.is_filtered()
126 head = cls.heads[pid] = chead(comm, pid, filtered)
129 head.mark_pending(start_secs, start_nsecs)
133 head = cls.heads[pid]
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/linux/net/ipv6/
H A Dxfrm6_protocol.c1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* xfrm6_protocol.c - Generic xfrm protocol multiplexer for ipv6.
41 #define for_each_protocol_rcu(head, handler) \ argument
42 for (handler = rcu_dereference(head); \
44 handler = rcu_dereference(handler->next)) \
50 struct xfrm6_protocol __rcu **head = proto_handlers(protocol); in xfrm6_rcv_cb() local
52 if (!head) in xfrm6_rcv_cb()
56 if ((ret = handler->cb_handler(skb, err)) <= 0) in xfrm6_rcv_cb()
67 struct xfrm6_protocol __rcu **head = proto_handlers(nexthdr); in xfrm6_rcv_encap() local
69 XFRM_TUNNEL_SKB_CB(skb)->tunnel.ip6 = NULL; in xfrm6_rcv_encap()
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/linux/fs/
H A Daio.c21 #include <linux/backing-dev.h>
42 #include <linux/percpu-refcount.h>
59 unsigned head; /* Written to by userland or under ring_lock member
73 * Plugging is meant to work with larger batches of IOs. If we don't
74 * have more than the below, then don't bother setting up a plug.
114 * The real limit is nr_events - 1, which will be larger (see
131 * signals when all in-flight requests are done
182 struct wait_queue_head *head; member
194 * access the file pointer through any of the sub-structs,
221 /*------ sysctl variables----*/
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/linux/net/strparser/
H A Dstrparser.c1 // SPDX-License-Identifier: GPL-2.0-only
32 return (struct _strp_msg *)((void *)skb->cb + in _strp_msg()
41 cancel_delayed_work(&strp->msg_timer_work); in strp_abort_strp()
43 if (strp->stopped) in strp_abort_strp()
46 strp->stopped = 1; in strp_abort_strp()
48 if (strp->sk) { in strp_abort_strp()
49 struct sock *sk = strp->sk; in strp_abort_strp()
52 sk->sk_err = -err; in strp_abort_strp()
60 mod_delayed_work(strp_wq, &strp->msg_timer_work, timeo); in strp_start_timer()
67 desc->error = err; in strp_parser_err()
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/linux/net/ipv4/
H A Dip_tunnel.c1 // SPDX-License-Identifier: GPL-2.0-only
65 return !test_bit(IP_TUNNEL_KEY_BIT, p->i_flags); in ip_tunnel_key_match()
67 return test_bit(IP_TUNNEL_KEY_BIT, p->i_flags) && p->i_key == key; in ip_tunnel_key_match()
86 struct ip_tunnel *t, *cand = NULL; in ip_tunnel_lookup() local
87 struct hlist_head *head; in ip_tunnel_lookup() local
92 head = &itn->tunnels[hash]; in ip_tunnel_lookup()
94 hlist_for_each_entry_rcu(t, head, hash_node) { in ip_tunnel_lookup()
95 if (local != t->parms.iph.saddr || in ip_tunnel_lookup()
96 remote != t->parms.iph.daddr || in ip_tunnel_lookup()
97 !(t->dev->flags & IFF_UP)) in ip_tunnel_lookup()
[all …]
/linux/tools/perf/arch/arm64/util/
H A Darm-spe.c1 // SPDX-License-Identifier: GPL-2.0
4 * Copyright (c) 2017-2018, Arm Ltd.
28 #include "../../../util/arm-spe.h"
49 list_for_each_entry(term, &evsel->config_terms, list) { in arm_spe_is_set_freq()
50 if (term->type == EVSEL__CONFIG_TERM_FREQ) in arm_spe_is_set_freq()
63 struct perf_cpu_map *event_cpus = evlist->core.user_requested_cpus; in arm_spe_find_cpus()
109 return -ENOMEM; in arm_spe_save_cpu_header()
114 data[ARM_SPE_CPU_NR_PARAMS] = ARM_SPE_CPU_PRIV_MAX - ARM_SPE_CPU_MIDR; in arm_spe_save_cpu_header()
118 if (perf_cpu_map__has(sper->arm_spe_pmu->cpus, cpu)) in arm_spe_save_cpu_header()
119 pmu = sper->arm_spe_pmu; in arm_spe_save_cpu_header()
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