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/OK3568_Linux_fs/kernel/arch/arm64/include/asm/
H A Dpreempt.h12 return READ_ONCE(current_thread_info()->preempt.count); in preempt_count()
18 WRITE_ONCE(current_thread_info()->preempt.count, pc); in preempt_count_set()
31 current_thread_info()->preempt.need_resched = 0; in set_preempt_need_resched()
36 current_thread_info()->preempt.need_resched = 1; in clear_preempt_need_resched()
41 return !current_thread_info()->preempt.need_resched; in test_preempt_need_resched()
46 u32 pc = READ_ONCE(current_thread_info()->preempt.count); in __preempt_count_add()
48 WRITE_ONCE(current_thread_info()->preempt.count, pc); in __preempt_count_add()
53 u32 pc = READ_ONCE(current_thread_info()->preempt.count); in __preempt_count_sub()
55 WRITE_ONCE(current_thread_info()->preempt.count, pc); in __preempt_count_sub()
64 WRITE_ONCE(ti->preempt.count, --pc); in __preempt_count_dec_and_test()
H A Dthread_info.h42 } preempt; member
/OK3568_Linux_fs/kernel/tools/testing/selftests/ftrace/test.d/preemptirq/
H A Dirqsoff_tracer.tc36 modprobe $MOD test_mode=preempt delay=500000 || fail
38 modprobe $MOD test_mode=preempt delay=500000 || fail
40 modprobe $MOD test_mode=preempt delay=500000 || fail
/OK3568_Linux_fs/kernel/Documentation/locking/
H A Dpreempt-locking.rst53 Note, some FPU functions are already explicitly preempt safe. For example,
77 preempt_enable() decrement the preempt counter
78 preempt_disable() increment the preempt counter
79 preempt_enable_no_resched() decrement, but do not immediately preempt
81 preempt_count() return the preempt counter
85 call to preempt_enable. The preempt statements define to nothing if
94 a reschedule if the preempt count is 0. A simple printk() might trigger a
121 This code is not preempt-safe, but see how easily we can fix it by simply
H A Dindex.rst20 preempt-locking
/OK3568_Linux_fs/kernel/drivers/gpu/drm/msm/adreno/
H A Da5xx_preempt.c136 a5xx_gpu->preempt[ring->id]->wptr = get_wptr(ring); in a5xx_preempt_trigger()
210 a5xx_gpu->preempt[i]->wptr = 0; in a5xx_preempt_hw_init()
211 a5xx_gpu->preempt[i]->rptr = 0; in a5xx_preempt_hw_init()
212 a5xx_gpu->preempt[i]->rbase = gpu->rb[i]->iova; in a5xx_preempt_hw_init()
255 a5xx_gpu->preempt[ring->id] = ptr; in preempt_init_ring()
H A Da5xx_gpu.h35 struct a5xx_preempt_record *preempt[MSM_GPU_MAX_RINGS]; member
/OK3568_Linux_fs/kernel/include/linux/
H A Drcupdate.h153 # define rcu_tasks_classic_qs(t, preempt) \ argument
155 if (!(preempt) && READ_ONCE((t)->rcu_tasks_holdout)) \
161 # define rcu_tasks_classic_qs(t, preempt) do { } while (0) argument
179 #define rcu_tasks_qs(t, preempt) \ argument
181 rcu_tasks_classic_qs((t), (preempt)); \
194 #define rcu_tasks_qs(t, preempt) do { } while (0) argument
H A Drcutiny.h65 #define rcu_note_context_switch(preempt) \ argument
68 rcu_tasks_qs(current, (preempt)); \
H A Drcutree.h21 void rcu_note_context_switch(bool preempt);
H A Dparport.h142 int (*preempt)(void *); member
321 int (*preempt)(void *); member
/OK3568_Linux_fs/yocto/poky/meta/recipes-kernel/linux/
H A Dlinux-yocto-rt_5.10.bb1 KBRANCH ?= "v5.10/standard/preempt-rt/base"
32 LINUX_KERNEL_TYPE = "preempt-rt"
H A Dlinux-yocto-rt_5.15.bb1 KBRANCH ?= "v5.15/standard/preempt-rt/base"
32 LINUX_KERNEL_TYPE = "preempt-rt"
/OK3568_Linux_fs/kernel/tools/lib/traceevent/Documentation/
H A Dlibtraceevent-event_print.txt54 . : The preempt count is zero.
57 preempt count, when non zero, will prevent the kernel
58 from scheduling out the current task. The preempt count
/OK3568_Linux_fs/kernel/include/trace/events/
H A Dsched.h108 static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p) in __trace_sched_switch_state() argument
120 if (preempt) in __trace_sched_switch_state()
140 TP_PROTO(bool preempt,
144 TP_ARGS(preempt, prev, next),
160 __entry->prev_state = __trace_sched_switch_state(preempt, prev);
/OK3568_Linux_fs/kernel/drivers/parport/
H A Dshare.c707 if (!par_dev_cb->preempt || !par_dev_cb->wakeup) { in parport_register_dev_model()
748 par_dev->preempt = par_dev_cb->preempt; in parport_register_dev_model()
992 if (oldcad->preempt) { in parport_claim()
993 if (oldcad->preempt(oldcad->private)) in parport_claim()
/OK3568_Linux_fs/yocto/meta-openembedded/meta-oe/recipes-kernel/oprofile/oprofile/
H A Dacinclude.m493 AC_MSG_CHECKING([for preempt patch])
94 AX_KERNEL_OPTION(CONFIG_PREEMPT,preempt=1,preempt=0)
95 AX_MSG_RESULT_YN([$preempt])
96 test "$preempt" = 0 || AC_MSG_ERROR([unsupported kernel configuration : CONFIG_PREEMPT])
/OK3568_Linux_fs/kernel/Documentation/trace/
H A Dftrace.rst858 # || / _--=> preempt-depth
899 # latency: 259 us, #4/4, CPU#2 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:4)
911 # ||| / _--=> preempt-depth
976 preempt-depth: The level of preempt_disabled
1191 Shows the interrupt, preempt count, need resched data.
1365 # latency: 16 us, #4/4, CPU#0 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:4)
1377 # ||| / _--=> preempt-depth
1416 # latency: 71 us, #168/168, CPU#3 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:4)
1428 # ||| / _--=> preempt-depth
1505 # || / _--=> preempt-depth
[all …]
H A Dring-buffer-design.rst98 same time, nor can a reader preempt/interrupt another reader. A reader
99 cannot preempt/interrupt a writer, but it may read/consume from the
104 A writer can preempt a reader, but a reader cannot preempt a writer.
486 and writes only preempt in "stack" formation.
604 must spin, and this is why the reader cannot preempt the writer::
657 As stated before, if enough writes preempt the first write, the
/OK3568_Linux_fs/kernel/arch/um/include/asm/
H A DKbuild23 generic-y += preempt.h
/OK3568_Linux_fs/kernel/kernel/trace/
H A Dtrace_sched_switch.c24 probe_sched_switch(void *ignore, bool preempt, in probe_sched_switch() argument
/OK3568_Linux_fs/yocto/meta-openembedded/meta-oe/recipes-kernel/pm-graph/pm-graph/
H A D0001-sleepgraph-add-support-for-RT-kernel-ftrace-flags.patch13 ||| / _--=> preempt-depth
/OK3568_Linux_fs/kernel/Documentation/power/
H A Dtricks.rst12 * turn off APIC and preempt
/OK3568_Linux_fs/kernel/Documentation/RCU/Design/Expedited-Grace-Periods/
H A DExpedited-Grace-Periods.rst13 There are two flavors of RCU (RCU-preempt and RCU-sched), with an earlier
38 RCU-preempt Expedited Grace Periods
41 ``CONFIG_PREEMPT=y`` kernels implement RCU-preempt.
42 The overall flow of the handling of a given CPU by an RCU-preempt
121 As with RCU-preempt, RCU-sched's ``synchronize_rcu_expedited()`` ignores
132 NEED_RESCHED flag of the current task's thread flag and the CPU preempt
235 For RCU-preempt, there is no specific check for idle in the IPI handler
507 idle CPUs, at least in the common case. RCU-preempt and RCU-sched use
/OK3568_Linux_fs/kernel/include/asm-generic/
H A DKbuild48 mandatory-y += preempt.h

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