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/linux/include/uapi/linux/
H A Datmmpc.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
44 __u16 mpc_p1; /* Shortcut-Setup Frame Count */
45 __u16 mpc_p2; /* Shortcut-Setup Frame Time */
46 __u8 mpc_p3[8]; /* Flow-detection Protocols */
47 __u16 mpc_p4; /* MPC Initial Retry Time */
48 __u16 mpc_p5; /* MPC Retry Time Maximum */
49 __u16 mpc_p6; /* Hold Down Time */
85 #define MPC_P1 10 /* Shortcut-Setup Frame Count */
86 #define MPC_P2 1 /* Shortcut-Setup Frame Time */
87 #define MPC_P3 0 /* Flow-detection Protocols */
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/linux/arch/mips/kernel/
H A Dsync-r4k.c1 // SPDX-License-Identifier: GPL-2.0
17 #include <asm/r4k-timer.h>
19 #include <asm/time.h>
35 * we want to have the fastest, inlined, non-debug version
36 * of a critical section, to be able to prove counter time-warps:
82 * we saw a time-warp of the counter going backwards: in check_counter_warp()
86 max_warp = max(max_warp, prev - now); in check_counter_warp()
90 * one CPU should observe time going backwards. in check_counter_warp()
99 WARN(!(now-start), in check_counter_warp()
101 now-start, end-start); in check_counter_warp()
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/linux/Documentation/admin-guide/
H A Dxfs.rst1 .. SPDX-License-Identifier: GPL-2.0
8 on the SGI IRIX platform. It is completely multi-threaded, can
15 for further details. This implementation is on-disk compatible
25 Sets the buffered I/O end-of-file preallocation size when
28 through to 1GiB, inclusive, in power-of-2 increments.
30 The default behaviour is for dynamic end-of-file
94 Set the number of in-memory log buffers. Valid numbers
95 range from 2-8 inclusive.
106 Enable data placement based on write life time hints provided
107 by the user. This turns on co-allocation of data of similar
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/linux/drivers/rtc/
H A Drtc-sun4v.c1 // SPDX-License-Identifier: GPL-2.0
2 /* rtc-sun4v.c: Hypervisor based RTC for SUN4V systems.
21 unsigned long ret, time; in hypervisor_get_time() local
24 retry: in hypervisor_get_time()
25 ret = sun4v_tod_get(&time); in hypervisor_get_time()
27 return time; in hypervisor_get_time()
29 if (--retries > 0) { in hypervisor_get_time()
31 goto retry; in hypervisor_get_time()
51 retry: in hypervisor_set_time()
56 if (--retries > 0) { in hypervisor_set_time()
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H A Drtc-ntxec.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * e-book readers designed by the original design manufacturer Netronix, Inc.
8 * This driver implements access to the RTC time and date.
42 retry: in ntxec_read_time()
43 res = regmap_read(rtc->ec->regmap, NTXEC_REG_READ_MINUTE_SECOND, &value); in ntxec_read_time()
47 tm->tm_min = value >> 8; in ntxec_read_time()
48 tm->tm_sec = value & 0xff; in ntxec_read_time()
50 res = regmap_read(rtc->ec->regmap, NTXEC_REG_READ_MDAY_HOUR, &value); in ntxec_read_time()
54 tm->tm_mday = value >> 8; in ntxec_read_time()
55 tm->tm_hour = value & 0xff; in ntxec_read_time()
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/linux/Documentation/devicetree/bindings/i2c/
H A Di2c-arb-gpio-challenge.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/i2c/i2c-arb-gpio-challenge.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: GPIO-based I2C Arbitration Using a Challenge & Response Mechanism
10 - Doug Anderson <dianders@chromium.org>
11 - Peter Rosin <peda@axentia.se>
18 standard I2C multi-master rules. Using GPIOs is generally useful in the case
30 others can see. These are all active low with pull-ups enabled. We'll
41 2. Waits a little bit for the other sides to notice (slew time, say 10
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/linux/drivers/gpu/drm/amd/amdgpu/
H A Damdgpu_amdkfd_gfx_v7.c53 mutex_lock(&adev->srbm_mutex); in lock_srbm()
60 mutex_unlock(&adev->srbm_mutex); in unlock_srbm()
66 uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; in acquire_queue()
67 uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec); in acquire_queue()
123 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; in kgd_init_interrupts()
124 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec); in kgd_init_interrupts()
140 retval = m->sdma_engine_id * SDMA1_REGISTER_OFFSET + in get_sdma_rlc_reg_offset()
141 m->sdma_queue_id * KFD_CIK_SDMA_QUEUE_OFFSET; in get_sdma_rlc_reg_offset()
144 m->sdma_engine_id, m->sdma_queue_id, retval); in get_sdma_rlc_reg_offset()
174 mqd_hqd = &m->cp_mqd_base_addr_lo; in kgd_hqd_load()
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H A Damdgpu_amdkfd_gfx_v8.c47 mutex_lock(&adev->srbm_mutex); in lock_srbm()
54 mutex_unlock(&adev->srbm_mutex); in unlock_srbm()
60 uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; in acquire_queue()
61 uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec); in acquire_queue()
118 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; in kgd_init_interrupts()
119 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec); in kgd_init_interrupts()
135 retval = m->sdma_engine_id * SDMA1_REGISTER_OFFSET + in get_sdma_rlc_reg_offset()
136 m->sdma_queue_id * KFD_VI_SDMA_QUEUE_OFFSET; in get_sdma_rlc_reg_offset()
139 m->sdma_engine_id, m->sdma_queue_id, retval); in get_sdma_rlc_reg_offset()
169 if (m->cp_hqd_vmid == 0) { in kgd_hqd_load()
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/linux/Documentation/devicetree/bindings/ipmi/
H A Dipmi-ipmb.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/ipmi/ipmi-ipmb.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
12 - Corey Minyard <cminyard@mvista.com>
17 - ipmi-ipmb
21 - const: ipmi
30 retry-time:
33 Time between retries of sends, in milliseconds. Defaults to 250.
35 max-retries:
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/linux/include/scsi/
H A Dscsi_status.h1 /* SPDX-License-Identifier: GPL-2.0 */
26 INITIATE_RECOVERY = 0x0f, /* SCSI-II only */
27 RELEASE_RECOVERY = 0x10, /* SCSI-II only */
28 TERMINATE_IO_PROC = 0x11, /* SCSI-II only */
47 DID_BUS_BUSY = 0x02, /* BUS stayed busy through time out period */
55 DID_PASSTHROUGH = 0x0a, /* Force command past mid-layer */
56 DID_SOFT_ERROR = 0x0b, /* The low level driver just wish a retry */
57 DID_IMM_RETRY = 0x0c, /* Retry without decrementing retry count */
58 DID_REQUEUE = 0x0d, /* Requeue command (no immediate retry) also
59 * without decrementing the retry count */
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/linux/drivers/scsi/fnic/
H A Dfnic_fdls.h1 /* SPDX-License-Identifier: GPL-2.0-only */
13 /* FDLS - Fabric discovery and login services
14 * -> VLAN discovery
15 * -> retry every retry delay seconds until it succeeds.
16 * <- List of VLANs
18 * -> Solicitation
19 * <- Solicitation response (Advertisement)
21 * -> FCF selection & FLOGI ( FLOGI timeout - 2 * E_D_TOV)
22 * <- FLOGI response
24 * -> FCF keep alive
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/linux/tools/testing/selftests/bpf/prog_tests/
H A Dstacktrace_build_id_nmi.c1 // SPDX-License-Identifier: GPL-2.0
19 int i, retry = 1; in test_stacktrace_build_id_nmi() local
23 retry: in test_stacktrace_build_id_nmi()
29 bpf_program__set_type(skel->progs.oncpu, BPF_PROG_TYPE_PERF_EVENT); in test_stacktrace_build_id_nmi()
35 pmu_fd = syscall(__NR_perf_event_open, &attr, -1 /* pid */, in test_stacktrace_build_id_nmi()
36 0 /* cpu 0 */, -1 /* group id */, in test_stacktrace_build_id_nmi()
47 skel->links.oncpu = bpf_program__attach_perf_event(skel->prog in test_stacktrace_build_id_nmi()
[all...]
H A Dstacktrace_build_id.c1 // SPDX-License-Identifier: GPL-2.0
15 int i, retry = 1; in test_stacktrace_build_id() local
17 retry: in test_stacktrace_build_id()
27 control_map_fd = bpf_map__fd(skel->maps.control_map); in test_stacktrace_build_id()
28 stackid_hmap_fd = bpf_map__fd(skel->maps.stackid_hmap); in test_stacktrace_build_id()
29 stackmap_fd = bpf_map__fd(skel->maps.stackmap); in test_stacktrace_build_id()
30 stack_amap_fd = bpf_map__fd(skel->maps.stack_amap); in test_stacktrace_build_id()
61 err = bpf_map__get_next_key(skel->map in test_stacktrace_build_id()
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/linux/tools/testing/selftests/drivers/net/
H A Dnetpoll_basic.py2 # SPDX-License-Identifier: GPL-2.0
25 import time
46 format="%(asctime)s - %(levelname)s - %(message)s",
63 # Time bpftrace will be running in parallel.
67 def ethtool_get_ringsize(interface_name: str) -> tuple[int, int]:
72 ethtool_result = ethtool(f"-g {interface_name}", json=True)[0]
83 def ethtool_set_ringsize(interface_name: str, ring_size: tuple[int, int]) -> bool:
90 ethtool(f"-G {interface_name} rx {rxs} tx {txs}")
92 # This might fail on real device, retry with a higher value,
99 def ethtool_get_queues_cnt(interface_name: str) -> tuple[int, int, int]:
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/linux/drivers/iio/imu/bno055/
H A Dbno055_ser_core.c1 // SPDX-License-Identifier: GPL-2.0
7 * Copyright (C) 2021-2022 Istituto Italiano di Tecnologia
33 * +------+------+-----+-----+----- ... ----+
35 * +------+------+-----+-----+----- ... ----+
38 * +------+----------+
40 * +------+----------+
45 * sw resets - bno055 on serial bus basically requires the hw reset pin).
48 * +------+------+-----+-----+
50 * +------+------+-----+-----+
53 * +------+-----+----- ... ----+
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/linux/drivers/parport/
H A Dieee1284_ops.c1 // SPDX-License-Identifier: GPL-2.0
2 /* IEEE-1284 operations for parport.
5 * they are used by the low-level drivers. If they have a special way
7 * the function pointers in port->ops); if not, they can just use these
31 * One-way data transfer functions. *
43 struct pardevice *dev = port->physport->cad; in parport_ieee1284_write_compat()
47 if (port->irq != PARPORT_IRQ_NONE) { in parport_ieee1284_write_compat()
52 port->physport->ieee1284.phase = IEEE1284_PH_FWD_DATA; in parport_ieee1284_write_compat()
56 unsigned long expire = jiffies + dev->timeout; in parport_ieee1284_write_compat()
84 /* Have we run out of time? */ in parport_ieee1284_write_compat()
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/linux/net/atm/
H A Dlec.h1 /* SPDX-License-Identifier: GPL-2.0 */
98 * Within the period of time defined by this variable, the client will send
103 * If no traffic has been sent in this vcc for this period of time,
108 * An LE Client MUST not retry an LE_ARP_REQUEST for a
109 * given frame's LAN Destination more than maximum retry count times,
114 * Max time the client will maintain an entry in its arp cache in
119 * Max time the client will maintain an entry in cache when
125 * Max time the client expects an LE_ARP_REQUEST/LE_ARP_RESPONSE
130 * Time limit ot wait to receive an LE_FLUSH_RESPONSE after the
134 /* The time since sending a frame to the bus after which the
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/linux/Documentation/devicetree/bindings/hwmon/
H A Dadi,ltc4282.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Nuno Sa <nuno.sa@analog.com>
15 https://www.analog.com/media/en/technical-documentation/data-sheets/ltc4282.pdf
20 - adi,ltc4282
25 vdd-supply: true
30 '#clock-cells':
33 adi,rsense-nano-ohms:
36 adi,vin-mode-microvolt:
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/linux/arch/powerpc/include/asm/
H A Dhvcall.h1 /* SPDX-License-Identifier: GPL-2.0 */
9 #define H_BUSY 1 /* Hardware busy -- retry later */
21 is a good time to retry */
23 is a good time to retry */
25 is a good time to retry */
27 is a good time to retry */
29 is a good time to retry */
31 is a good time to retry */
37 #define H_HARDWARE -1 /* Hardware error */
38 #define H_FUNCTION -2 /* Function not supported */
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/linux/kernel/futex/
H A Dwaitwake.c1 // SPDX-License-Identifier: GPL-2.0-or-later
64 * smp_mb(); (A) <-- paired with -.
73 * `--
416 bool retry = false; futex_wait_multiple_setup() local
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/linux/Documentation/ABI/stable/
H A Dsysfs-devices-system-xen_memory9 A value of zero means retry forever and is the default one.
28 to retry with a 'schedule_delay' delay.
35 The time (in seconds) to wait between attempts to
36 increase the balloon. Each time the balloon cannot be
82 Contact: xen-devel@lists.xenproject.org
/linux/tools/testing/selftests/mm/
H A Dmrelease_test.c1 // SPDX-License-Identifier: GPL-2.0
13 #include <asm-generic/unistd.h>
42 timeout--; in alloc_noexit()
54 if (!syscall(__NR_process_mrelease, pidfd, (unsigned int)-1) || in run_negative_tests()
70 /* Allocate and fault-in memory and wait to be killed */ in child_main()
80 bool success, retry; in main() local
90 if (!syscall(__NR_process_mrelease, -1, 0) || errno != EBADF) { in main()
102 retry: in main()
155 * which causes it to spend more time on cleanup and increases in main()
157 * Retry until we succeed or reach MAX_SIZE_MB. in main()
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/linux/drivers/s390/block/
H A Ddasd_3990_erp.c1 // SPDX-License-Identifier: GPL-2.0
51 struct dasd_ccw_req *cqr = erp->refers; in dasd_3990_erp_cleanup()
53 dasd_free_erp_request(erp, erp->memdev); in dasd_3990_erp_cleanup()
54 cqr->status = final_status; in dasd_3990_erp_cleanup()
70 struct dasd_device *device = erp->startdev; in dasd_3990_erp_block_queue()
76 spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); in dasd_3990_erp_block_queue()
78 spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); in dasd_3990_erp_block_queue()
79 erp->status = DASD_CQR_FILLED; in dasd_3990_erp_block_queue()
80 if (erp->block) in dasd_3990_erp_block_queue()
81 dasd_block_set_timer(erp->block, expires); in dasd_3990_erp_block_queue()
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/linux/tools/perf/pmu-events/arch/powerpc/power9/
H A Dother.json35 "BriefDescription": "L3 initiated LCO received retry on port 2 (can try 4 times)"
65 "BriefDescription": "Read-write data cache collisions"
90 "BriefDescription": "D-cache invalidates sent over the reload bus to the core"
200 "BriefDescription": "Read-write data cache collisions"
260 "BriefDescription": "L3 CO received retry port 3 (memory only), every retry counted"
280 …-word boundary, which causes it to require an additional slice than than what normally would be re…
300 "BriefDescription": "I-cache Invalidates sent over the realod bus to the core"
305 …ets a miss (erat, setp, data cache), it will often be flushed at relaunch time because the data mi…
340 "BriefDescription": "L3 initiated LCO received retry on port 1 (can try 4 times)"
395 …-word boundary, which causes it to require an additional slice than than what normally would be re…
[all …]
/linux/drivers/media/pci/intel/ipu6/
H A Dipu6-fw-isys.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2013--2024 Intel Corporation
13 #include "ipu6-bus.h"
14 #include "ipu6-fw-com.h"
15 #include "ipu6-isys.h"
16 #include "ipu6-platform-isys-csi2-reg.h"
17 #include "ipu6-platform-regs.h"
31 struct device *dev = &isys->adev->auxdev.dev; in handle_proxy_response()
35 resp = ipu6_recv_get_token(isys->fwcom, IPU6_BASE_PROXY_RECV_QUEUES); in handle_proxy_response()
40 resp->request_id, resp->error_info.error, in handle_proxy_response()
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