Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-21 19:41:42 +00:00
Code Issues Packages Projects Releases Wiki Activity
0892d74213
linux/arch/riscv
History
Linus Torvalds 3f020399e4 Scheduler changes for v6.13: 
- Core facilities:
 
     - Add the "Lazy preemption" model (CONFIG_PREEMPT_LAZY=y), which optimizes
       fair-class preemption by delaying preemption requests to the
       tick boundary, while working as full preemption for RR/FIFO/DEADLINE
       classes. (Peter Zijlstra)
 
         - x86: Enable Lazy preemption (Peter Zijlstra)
         - riscv: Enable Lazy preemption (Jisheng Zhang)
 
     - Initialize idle tasks only once (Thomas Gleixner)
 
     - sched/ext: Remove sched_fork() hack (Thomas Gleixner)
 
  - Fair scheduler:
     - Optimize the PLACE_LAG when se->vlag is zero (Huang Shijie)
 
  - Idle loop:
       Optimize the generic idle loop by removing unnecessary
       memory barrier (Zhongqiu Han)
 
  - RSEQ:
     - Improve cache locality of RSEQ concurrency IDs for
       intermittent workloads (Mathieu Desnoyers)
 
  - Waitqueues:
     - Make wake_up_{bit,var} less fragile (Neil Brown)
 
  - PSI:
     - Pass enqueue/dequeue flags to psi callbacks directly (Johannes Weiner)
 
  - Preparatory patches for proxy execution:
     - core: Add move_queued_task_locked helper (Connor O'Brien)
     - core: Consolidate pick_*_task to task_is_pushable helper (Connor O'Brien)
     - core: Split out __schedule() deactivate task logic into a helper (John Stultz)
     - core: Split scheduler and execution contexts (Peter Zijlstra)
     - locking/mutex: Make mutex::wait_lock irq safe (Juri Lelli)
     - locking/mutex: Expose __mutex_owner() (Juri Lelli)
     - locking/mutex: Remove wakeups from under mutex::wait_lock (Peter Zijlstra)
 
  - Misc fixes and cleanups:
     - core: Remove unused __HAVE_THREAD_FUNCTIONS hook support (David Disseldorp)
     - core: Update the comment for TIF_NEED_RESCHED_LAZY (Sebastian Andrzej Siewior)
     - wait: Remove unused bit_wait_io_timeout (Dr. David Alan Gilbert)
     - fair: remove the DOUBLE_TICK feature (Huang Shijie)
     - fair: fix the comment for PREEMPT_SHORT (Huang Shijie)
     - uclamp: Fix unnused variable warning (Christian Loehle)
     - rt: No PREEMPT_RT=y for all{yes,mod}config
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmc7fnQRHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1hZTBAAozVdWA2m51aNa67HvAZta/olmrIagVbW
 inwbTgqa8b+UfeWEuKOfrZr5khjEh6pLgR3dBTib1uH6xxYj/Okds+qbPWSBPVLh
 yzavlm/zJZM1U1XtxE3eyVfqWik4GrY7DoIMDQQr+YH7rNXonJeJkll38OI2E5MC
 q3Q01qyMo8RJJX8qkf3f8ObOoP/51NsVniTw0Zb2fzEhXz8FjezLlxk6cMfgSkJG
 lg9gfIwUZ7Xg5neRo4kJcc3Ht31KYOhWSiupBJzRD1hss/N/AybvMcTX/Cm8d07w
 HIAdDDAn84o46miFo/a0V/hsJZ72idWbqxVJUCtaezrpOUiFkG+uInRvG/ynr0lF
 5dEI9f+6PUw8Nc7L72IyHkobjPqS2IefSaxYYCBKmxMX2qrenfTor/pKiWzzhBIl
 rX3MZSuUJ8NjV4rNGD/qXRM1IsMJrsDwxDyv+sRec3XdH33x286ds6aAUEPDQ6N7
 96VS0sOKcNUJN8776ErNjlIxRl8HTlpkaO3nZlQIfXgTlXUpRvOuKbEWqP+606lo
 oANgJTKgUhgJPWZnvmdRxDjSiOp93QcImjus9i1tN81FGiEDleONsJUxu2Di1E5+
 s1nCiytjq+cdvzCqFyiOZUh+g6kSZ4yXxNgLg2UvbXzX1zOeUQT3WtyKUhMPXhU8
 esh1TgbUbpE=
 =Zcqj
 -----END PGP SIGNATURE-----

Merge tag 'sched-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:
 "Core facilities:

   - Add the "Lazy preemption" model (CONFIG_PREEMPT_LAZY=y), which
     optimizes fair-class preemption by delaying preemption requests to
     the tick boundary, while working as full preemption for
     RR/FIFO/DEADLINE classes. (Peter Zijlstra)
        - x86: Enable Lazy preemption (Peter Zijlstra)
        - riscv: Enable Lazy preemption (Jisheng Zhang)

   - Initialize idle tasks only once (Thomas Gleixner)

   - sched/ext: Remove sched_fork() hack (Thomas Gleixner)

  Fair scheduler:

   - Optimize the PLACE_LAG when se->vlag is zero (Huang Shijie)

  Idle loop:

   - Optimize the generic idle loop by removing unnecessary memory
     barrier (Zhongqiu Han)

  RSEQ:

   - Improve cache locality of RSEQ concurrency IDs for intermittent
     workloads (Mathieu Desnoyers)

  Waitqueues:

   - Make wake_up_{bit,var} less fragile (Neil Brown)

  PSI:

   - Pass enqueue/dequeue flags to psi callbacks directly (Johannes
     Weiner)

  Preparatory patches for proxy execution:

   - Add move_queued_task_locked helper (Connor O'Brien)

   - Consolidate pick_*_task to task_is_pushable helper (Connor O'Brien)

   - Split out __schedule() deactivate task logic into a helper (John
     Stultz)

   - Split scheduler and execution contexts (Peter Zijlstra)

   - Make mutex::wait_lock irq safe (Juri Lelli)

   - Expose __mutex_owner() (Juri Lelli)

   - Remove wakeups from under mutex::wait_lock (Peter Zijlstra)

  Misc fixes and cleanups:

   - Remove unused __HAVE_THREAD_FUNCTIONS hook support (David
     Disseldorp)

   - Update the comment for TIF_NEED_RESCHED_LAZY (Sebastian Andrzej
     Siewior)

   - Remove unused bit_wait_io_timeout (Dr. David Alan Gilbert)

   - remove the DOUBLE_TICK feature (Huang Shijie)

   - fix the comment for PREEMPT_SHORT (Huang Shijie)

   - Fix unnused variable warning (Christian Loehle)

   - No PREEMPT_RT=y for all{yes,mod}config"

* tag 'sched-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
  sched, x86: Update the comment for TIF_NEED_RESCHED_LAZY.
  sched: No PREEMPT_RT=y for all{yes,mod}config
  riscv: add PREEMPT_LAZY support
  sched, x86: Enable Lazy preemption
  sched: Enable PREEMPT_DYNAMIC for PREEMPT_RT
  sched: Add Lazy preemption model
  sched: Add TIF_NEED_RESCHED_LAZY infrastructure
  sched/ext: Remove sched_fork() hack
  sched: Initialize idle tasks only once
  sched: psi: pass enqueue/dequeue flags to psi callbacks directly
  sched/uclamp: Fix unnused variable warning
  sched: Split scheduler and execution contexts
  sched: Split out __schedule() deactivate task logic into a helper
  sched: Consolidate pick_*_task to task_is_pushable helper
  sched: Add move_queued_task_locked helper
  locking/mutex: Expose __mutex_owner()
  locking/mutex: Make mutex::wait_lock irq safe
  locking/mutex: Remove wakeups from under mutex::wait_lock
  sched: Improve cache locality of RSEQ concurrency IDs for intermittent workloads
  sched: idle: Optimize the generic idle loop by removing needless memory barrier
  ...
2024-11-19 14:16:06 -08:00
..
boot RISC-V soc fixes for v6.12-rc6 2024-11-01 15:47:35 +01:00
configs RISC-V Patches for the 6.12 Merge Window, Part 1 2024-09-24 10:59:17 -07:00
crypto
errata riscv: Do not use fortify in early code 2024-10-25 06:18:36 -07:00
include riscv: add PREEMPT_LAZY support 2024-11-05 12:55:39 +01:00
kernel Merge commit 'bf40167d54d5' into fixes 2024-10-25 06:18:43 -07:00
kvm RISCV: KVM: use raw_spinlock for critical section in imsic 2024-10-20 12:10:44 -04:00
lib Merge patch series "riscv: Improve KASAN coverage to fix unit tests" 2024-09-19 01:10:44 -07:00
mm RISC-V Patches for the 6.12 Merge Window, Part 1 2024-09-24 10:59:17 -07:00
net riscv, bpf: Make BPF_CMPXCHG fully ordered 2024-10-17 17:14:48 +02:00
purgatory Merge patch series "riscv: Improve KASAN coverage to fix unit tests" 2024-09-19 01:10:44 -07:00
tools
Kbuild
Kconfig Scheduler changes for v6.13: 2024-11-19 14:16:06 -08:00
Kconfig.debug
Kconfig.errata
Kconfig.socs
Kconfig.vendor riscv: Extend cpufeature.c to detect vendor extensions 2024-07-22 15:36:54 -07:00
Makefile riscv: boot: add Image.xz support 2024-09-01 20:43:27 -07:00
Makefile.postlink