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/linux/kernel/cgroup/
H A Dfreezer.c149 * Freeze or unfreeze the task by setting or clearing the JOBCTL_TRAP_FREEZE
152 static void cgroup_freeze_task(struct task_struct *task, bool freeze) in cgroup_freeze_task() argument
160 if (freeze) { in cgroup_freeze_task()
172 * Freeze or unfreeze all tasks in the given cgroup.
174 static void cgroup_do_freeze(struct cgroup *cgrp, bool freeze, u64 ts_nsec) in cgroup_do_freeze() argument
183 if (freeze) { in cgroup_do_freeze()
194 if (freeze) in cgroup_do_freeze()
195 TRACE_CGROUP_PATH(freeze, cgrp); in cgroup_do_freeze()
207 cgroup_freeze_task(task, freeze); in cgroup_do_freeze()
222 * Adjust the task state (freeze or unfreeze) and revisit the state of
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H A Dlegacy_freezer.c339 * @freeze: whether to freeze or unfreeze
342 * Set or clear @state on @cgroup according to @freeze, and perform
345 static void freezer_apply_state(struct freezer *freezer, bool freeze, in freezer_apply_state() argument
354 if (freeze) { in freezer_apply_state()
376 * @freeze: whether to freeze or thaw
378 * Freeze or thaw @freezer according to @freeze. The operations are
381 static void freezer_change_state(struct freezer *freezer, bool freeze) in freezer_change_state() argument
402 freezer_apply_state(pos_f, freeze, in freezer_change_state()
420 bool freeze; in freezer_write() local
425 freeze = false; in freezer_write()
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/linux/Documentation/devicetree/bindings/fpga/
H A Daltr,freeze-bridge-controller.yaml4 $id: http://devicetree.org/schemas/fpga/altr,freeze-bridge-controller.yaml#
7 title: Altera Freeze Bridge Controller
10 The Altera Freeze Bridge Controller manages one or more freeze bridges.
11 The controller can freeze/disable the bridges which prevents signal
24 const: altr,freeze-bridge-controller
38 compatible = "altr,freeze-bridge-controller";
/linux/tools/testing/selftests/cgroup/
H A Dtest_freezer.c48 * Freeze the given cgroup.
50 static int cg_freeze_nowait(const char *cgroup, bool freeze) in cg_freeze_nowait() argument
52 return cg_write(cgroup, "cgroup.freeze", freeze ? "1" : "0"); in cg_freeze_nowait()
89 * Freeze the given cgroup and wait for the inotify signal.
93 static int cg_freeze_wait(const char *cgroup, bool freeze) in cg_freeze_wait() argument
101 ret = cg_freeze_nowait(cgroup, freeze); in cg_freeze_wait()
111 ret = cg_check_frozen(cgroup, freeze); in cg_freeze_wait()
133 * running processes and freeze it. Then unfreeze it. Then it kills all
186 * Then it tries to freeze and unfreeze the whole tree.
255 * Freeze B. in test_cgfreezer_tree()
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/linux/arch/powerpc/include/asm/
H A Dreg_fsl_emb.h51 #define PMLCA_FC 0x80000000 /* Freeze Counter */
52 #define PMLCA_FCS 0x40000000 /* Freeze in Supervisor */
53 #define PMLCA_FCU 0x20000000 /* Freeze in User */
54 #define PMLCA_FCM1 0x10000000 /* Freeze when PMM==1 */
55 #define PMLCA_FCM0 0x08000000 /* Freeze when PMM==0 */
57 #define PMLCA_FGCS1 0x00000002 /* Freeze in guest state */
58 #define PMLCA_FGCS0 0x00000001 /* Freeze in hypervisor state */
78 #define PMGC0_FAC 0x80000000 /* Freeze all Counters */
80 #define PMGC0_FCECE 0x20000000 /* Freeze countes on
H A Dreg.h813 #define TBCTL_FREEZE 0x0000000000000000ull /* Freeze all tbs */
858 #define MMCR0_FC 0x80000000UL /* freeze counters */
859 #define MMCR0_FCS 0x40000000UL /* freeze in supervisor state */
861 #define MMCR0_FCP 0x20000000UL /* freeze in problem state */
863 #define MMCR0_FCM1 0x10000000UL /* freeze counters while MSR mark = 1 */
864 #define MMCR0_FCM0 0x08000000UL /* freeze counters while MSR mark = 0 */
866 #define MMCR0_FCECE ASM_CONST(0x02000000) /* freeze ctrs on enabled cond or event */
880 #define MMCR0_SHRFC 0x00000040UL /* SHRre freeze conditions between threads */
881 #define MMCR0_FC56 0x00000010UL /* freeze counters 5 and 6 */
882 #define MMCR0_FCTI 0x00000008UL /* freeze counters in tags inactive mode */
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/linux/tools/power/pm-graph/config/
H A Dfreeze-dev.cfg2 # Dev S2 (Freeze) test - includes src calls / kernel threads
9 # sudo ./sleepgraph.py -config config/freeze-dev.cfg
21 # e.g. standby, mem, freeze, disk (default: mem)
22 mode: freeze
26 output-dir: freeze-{hostname}-{date}-{time}-dev
42 # Command to execute in lieu of freeze (default: "")
43 # command: echo freeze > /sys/power/state
H A Dfreeze-callgraph.cfg2 # Full Callgraph for S2 (Freeze) test
9 # sudo ./sleepgraph.py -config config/freeze-callgraph.cfg
22 # e.g. standby, mem, freeze, disk (default: mem)
23 mode: freeze
27 output-dir: freeze-{hostname}-{date}-{time}-cg
43 # Command to execute in lieu of freeze (default: "")
44 # command: echo freeze > /sys/power/state
H A Dfreeze.cfg2 # Generic S2 (Freeze) test
9 # sudo ./sleepgraph.py -config config/freeze.cfg
21 # e.g. standby, mem, freeze, disk (default: mem)
22 mode: freeze
26 output-dir: freeze-{hostname}-{date}-{time}
42 # Command to execute in lieu of freeze (default: "")
43 # command: echo freeze > /sys/power/state
/linux/kernel/
H A Dfreezer.c3 * kernel/freezer.c - Function to freeze a process
73 bool freeze; in __refrigerator() local
82 freeze = freezing(current) && !(check_kthr_stop && kthread_should_stop()); in __refrigerator()
85 if (!freeze) in __refrigerator()
136 * It's dangerous to freeze with locks held; there be dragons there. in __set_task_frozen()
154 * freeze_task - send a freeze request to given task
157 * If @p is freezing, the freeze request is sent either by sending a fake
/linux/arch/powerpc/platforms/powermac/
H A Dsmp.c66 static void (*pmac_tb_freeze)(int freeze);
350 /* This is going to freeze the timeebase, we disable interrupts */ in smp_psurge_kick_cpu()
503 static void smp_core99_cypress_tb_freeze(int freeze) in smp_core99_cypress_tb_freeze() argument
519 data = (data & 0xf3) | (freeze ? 0x00 : 0x0c); in smp_core99_cypress_tb_freeze()
529 freeze ? "freeze" : "unfreeze", rc); in smp_core99_cypress_tb_freeze()
530 panic("Timebase freeze failed !\n"); in smp_core99_cypress_tb_freeze()
535 static void smp_core99_pulsar_tb_freeze(int freeze) in smp_core99_pulsar_tb_freeze() argument
548 data = (data & 0x88) | (freeze ? 0x11 : 0x22); in smp_core99_pulsar_tb_freeze()
557 freeze ? "freeze" : "unfreeze", rc); in smp_core99_pulsar_tb_freeze()
558 panic("Timebase freeze failed !\n"); in smp_core99_pulsar_tb_freeze()
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/linux/include/linux/
H A Dpm.h75 * followed by one of the suspend callbacks: @suspend(), @freeze(), or
100 * fails before the driver's suspend callback: @suspend(), @freeze() or
144 * @freeze: Hibernation-specific, executed before creating a hibernation image.
148 * @freeze() to save the device settings in memory to be used by @restore()
150 * Subsystem-level @freeze() is executed for all devices after invoking
153 * @freeze_late: Continue operations started by @freeze(). Analogous to
160 * Undo the changes made by the preceding @freeze(), so the device can be
161 * operated in the same way as immediately before the call to @freeze().
164 * directly after @freeze() in case of a transition error.
202 * @freeze_noirq: Complete the actions started by @freeze(). Carry out any
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/linux/Documentation/driver-api/nvdimm/
H A Dsecurity.rst11 "unlock unit", "freeze lock", "secure erase", and "overwrite". A security_ops
30 freeze - freeze changing of security states.
83 6. Freeze
85 The freeze operation does not require any keys. The security config can be
/linux/arch/powerpc/sysdev/
H A Dfsl_rcpm.c284 static void rcpm_common_freeze_time_base(u32 *tben_reg, int freeze) in rcpm_common_freeze_time_base() argument
288 if (freeze) { in rcpm_common_freeze_time_base()
299 static void rcpm_v1_freeze_time_base(bool freeze) in rcpm_v1_freeze_time_base() argument
301 rcpm_common_freeze_time_base(&rcpm_v1_regs->ctbenr, freeze); in rcpm_v1_freeze_time_base()
304 static void rcpm_v2_freeze_time_base(bool freeze) in rcpm_v2_freeze_time_base() argument
306 rcpm_common_freeze_time_base(&rcpm_v2_regs->pctbenr, freeze); in rcpm_v2_freeze_time_base()
/linux/Documentation/power/
H A Dfreezing-of-tasks.rst48 that put the task to sleep (TASK_INTERRUPTIBLE) or freeze it (TASK_FROZEN) if
90 - freezes all tasks (including kernel threads) because we can't freeze
125 usually making them almost impossible to repair). We therefore freeze
150 "RJW:> Why we freeze tasks at all or why we freeze kernel threads?
160 So in practice, the 'at all' may become a 'why freeze kernel threads?' and
241 consequence, the freezer would not be able to freeze that task, leading to
254 /sys/power/pm_freeze_timeout controls how long it will cost at most to freeze
/linux/arch/sh/kernel/cpu/sh4/
H A Dperf_event.c67 * 0x24 Pipeline freeze by I-cache miss
68 * 0x25 Pipeline freeze by D-cache miss
69 * 0x27 Pipeline freeze by branch instruction
70 * 0x28 Pipeline freeze by CPU register
71 * 0x29 Pipeline freeze by FPU
/linux/drivers/ssb/
H A Dsprom.c107 struct ssb_freeze_context freeze; in ssb_attr_sprom_store() local
130 err = ssb_devices_freeze(bus, &freeze); in ssb_attr_sprom_store()
132 pr_err("SPROM write: Could not freeze all devices\n"); in ssb_attr_sprom_store()
136 err = ssb_devices_thaw(&freeze); in ssb_attr_sprom_store()
/linux/fs/
H A Dsuper.c1510 * fs_bdev_freeze - freeze owning filesystem of block device
1513 * Freeze the filesystem that owns this block device if it is still
1518 * unfrozen. Each block device can only freeze the filesystem once as we
1521 * Return: If the freeze was successful zero is returned. If the freeze
1555 * unfrozen. Each block device can only freeze the filesystem once as we
1562 * freeze or might be frozen from other block devices).
1597 .freeze = fs_bdev_freeze,
1939 /* This freeze already has a specific owner. */ in may_freeze()
1944 * going to take a reference count and mark the freeze as in may_freeze()
1987 * exclusive freeze. in may_unfreeze()
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/linux/tools/power/pm-graph/
H A DMakefile41 $(INSTALL_DATA) config/freeze-callgraph.cfg $(DESTDIR)$(LIBDIR)/pm-graph/config
42 $(INSTALL_DATA) config/freeze.cfg $(DESTDIR)$(LIBDIR)/pm-graph/config
43 $(INSTALL_DATA) config/freeze-dev.cfg $(DESTDIR)$(LIBDIR)/pm-graph/config
H A DREADME129 ['freeze', 'mem', 'disk']
230 Mode to initiate for suspend e.g. mem, freeze, standby (default: mem).
306 Simple suspend/resume with basic timeline (mem/freeze/standby)
308 config/freeze.cfg
311 Dev mode suspend/resume with dev timeline (mem/freeze/standby)
313 config/freeze-dev.cfg
316 Simple suspend/resume with timeline and callgraph (mem/freeze/standby)
318 config/freeze-callgraph.cfg
352 # Suspend Mode: e.g. standby, mem, freeze, disk (def: mem)
614 modes : freeze mem
/linux/fs/xfs/scrub/
H A Dfscounters.c38 * While we /could/ freeze the filesystem and scramble around the AGs counting
137 /* This should always succeed, we have a kernel freeze */ in xchk_fsthaw()
147 * freeze levels to put userspace to sleep, and the third freeze level to
163 /* Try to grab a kernel freeze. */ in xchk_fscounters_freeze()
580 * frozen, we treat the discrepancy as a corruption because the freeze in xchk_fscounters()
582 * userspace to call us back having granted us freeze permission. in xchk_fscounters()
/linux/tools/testing/selftests/bpf/prog_tests/
H A Dmmap.c129 /* data_map freeze should fail due to R/W mmap() */ in test_mmap()
132 "data_map freeze succeeded: err=%d, errno=%d\n", err, errno)) in test_mmap()
173 /* data_map freeze should now succeed due to no R/W mapping */ in test_mmap()
175 if (CHECK(err, "freeze", "data_map freeze failed: err=%d, errno=%d\n", in test_mmap()
/linux/arch/powerpc/kvm/
H A Dbook3s_hv_interrupts.S117 mtspr SPRN_MMCR2, r3 /* freeze all counters using MMCR2 */
121 sldi r3, r3, 31 /* MMCR0_FC (freeze counters) bit */
123 mtspr SPRN_MMCR0, r3 /* freeze all counters, disable interrupts */
/linux/arch/powerpc/platforms/85xx/
H A Dmpc85xx_pm_ops.c57 static void mpc85xx_freeze_time_base(bool freeze) in mpc85xx_freeze_time_base() argument
62 if (freeze) in mpc85xx_freeze_time_base()
/linux/tools/hv/
H A Dhv_vss_daemon.c45 * FREEZE/THAW can succeed and the later ones will get in vss_do_freeze()
192 syslog(LOG_ERR, "FREEZE of %s failed; error:%d %s", in vss_operate()
195 syslog(LOG_ERR, "FREEZE of / failed; error:%d %s", save_errno, in vss_operate()
322 op == VSS_OP_FREEZE ? "FREEZE" : "THAW", in main()

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