Commit Graph

7642 Commits

Author SHA1 Message Date
Pawel Dziepak
2b7ea4cddf kernel: Remove Thread::next_state 2013-11-29 19:31:10 +01:00
Pawel Dziepak
673f08a995 kernel: Make thread_block_locked() private 2013-11-29 05:30:50 +01:00
Pawel Dziepak
7f8cf14b71 scheduler, kernel/util: Fix style issues 2013-11-29 04:51:38 +01:00
Pawel Dziepak
3514fd77f7 kernel: Reduce lock contention when processing ICIs 2013-11-29 03:36:44 +01:00
Pawel Dziepak
e736a456ba kernel: Forbid implicit casts between spinlock and int32 2013-11-29 03:36:31 +01:00
Pawel Dziepak
286b341a40 kernel: Merge two occurences of thread resume code 2013-11-28 14:03:57 +01:00
Pawel Dziepak
7db89e8dc3 kernel: Rework cpuidle module
* Create new interface for cpuidle modules (similar to the cpufreq
   interface)
 * Generic cpuidle module is no longer needed
 * Fix and update Intel C-State module
2013-11-25 23:50:27 +01:00
Pawel Dziepak
0e94a12f8e kernel: Make CACHE_LINE_ALIGN visible in the whole kernel 2013-11-25 00:35:15 +01:00
Pawel Dziepak
1e8ed5558d cpufreq: Rank modules and choose the best one 2013-11-25 00:08:13 +01:00
Pawel Dziepak
03f7d3d1db kernel: Restore logical processor disabling 2013-11-24 22:51:07 +01:00
Pawel Dziepak
a04b7d9f96 power: Remove old cpufreq interface 2013-11-22 05:30:14 +01:00
Pawel Dziepak
14e36af649 kernel[/util]: Fix debug builds 2013-11-21 03:24:54 +01:00
Pawel Dziepak
024541a4c8 kernel: Improve rw_spinlock implementation
* Add more debug checks
 * Reduce the number of executed instructions that lock the bus.
2013-11-21 02:25:03 +01:00
Pawel Dziepak
308f594e2a kernel, libroot: Make scheduler modes interface public 2013-11-20 23:32:40 +01:00
Pawel Dziepak
9c2e74da04 scheduler: Move mode specific logic to separate files 2013-11-20 09:46:59 +01:00
Pawel Dziepak
d897a478d7 kernel: Allow reassigning IRQs to logical processors 2013-11-18 04:55:25 +01:00
Pawel Dziepak
955c7edec2 kernel: Measure time spent in interrupt handlers 2013-11-18 01:50:37 +01:00
Pawel Dziepak
6a164daad4 kernel: Track load produced by interrupt handlers 2013-11-18 01:17:44 +01:00
Pawel Dziepak
288a2664a2 scheduler: Remove sSchedulerInternalLock
* pin idle threads to their specific CPUs
 * allow scheduler to implement SMP_MSG_RESCHEDULE handler
 * scheduler_set_thread_priority() reworked
 * at reschedule: enqueue old thread after dequeueing the new one
2013-11-13 05:31:58 +01:00
Pawel Dziepak
829f836324 scheduler: Minor cleanup 2013-11-12 04:42:12 +01:00
Pawel Dziepak
7e1c4534df libroot: Add adaptive mutex implementation 2013-11-08 03:37:30 +01:00
Pawel Dziepak
03fb2d8868 kernel: Remove gSchedulerLock
* Thread::scheduler_lock protects thread state, priority, etc.
 * sThreadCreationLock protects thread creation and removal and list of
   threads in team.
 * Team::signal_lock and Team::time_lock protect list of threads in team
   as well.
 * Scheduler uses its own internal locking.
2013-11-08 02:41:26 +01:00
Pawel Dziepak
72addc62e0 kernel: Introduce Thread::time_lock and Team::time_lock 2013-11-07 22:16:36 +01:00
Pawel Dziepak
3519eb334a kernel: Change Thread::team_lock to rw_spinlock 2013-11-07 04:20:59 +01:00
Pawel Dziepak
defee266db kernel: Add read write spinlock implementation 2013-11-07 04:20:32 +01:00
Pawel Dziepak
d3e5752b11 scheduler: Performance mode is actually low latency mode 2013-11-07 01:50:20 +01:00
Pawel Dziepak
83983eaf38 kernel: Remove Thread::alarm 2013-11-07 01:40:02 +01:00
Pawel Dziepak
aa4aca0264 kernel: Protect signal data with Team::signal_lock 2013-11-07 01:32:48 +01:00
Pawel Dziepak
73ad2473e7 Remove remaining unnecessary 'volatile' qualifiers 2013-11-06 00:03:07 +01:00
Pawel Dziepak
273f2f38cd kernel: Improve spinlock implementation
atomic_or() and atomic_and() are not supported by x86 are need to be
emulated using CAS. Use atomic_get_and_set() and atomic_set() instead.
2013-11-05 22:47:18 +01:00
Pawel Dziepak
077c84eb27 kernel: atomic_*() functions rework
* No need for the atomically changed variables to be declared as
   volatile.
 * Drop support for atomically getting and setting unaligned data.
 * Introduce atomic_get_and_set[64]() which works the same as
   atomic_set[64]() used to. atomic_set[64]() does not return the
   previous value anymore.
2013-11-05 22:32:59 +01:00
Pawel Dziepak
f4b088a992 kernel: Protect UserTimers with sUserTimerLock 2013-11-05 05:36:05 +01:00
Pawel Dziepak
4824f7630b kernel: Add sequential lock implementation 2013-11-05 04:16:13 +01:00
Pawel Dziepak
3c819aaa72 kernel: DPC: remove schedulerLocked argument 2013-11-04 23:51:18 +01:00
Pawel Dziepak
11cacd0c13 kernel: Remove thread_block_with_timeout_locked() 2013-11-04 23:45:14 +01:00
Pawel Dziepak
d8fcc8a825 kernel: Remove B_TIMER_ACQUIRE_SCHEDULER_LOCK flag
The flag main purpose is to avoid race conditions between event handler
and cancel_timer(). However, cancel_timer() is safe even without
using gSchedulerLock.

If the event is scheduled to happen on other CPU than the CPU that
invokes cancel_timer() then cancel_timer() either disables the event
before its handler starts executing or waits until the event handler
is done.

If the event is scheduled on the same CPU that calls cancel_timer()
then, since cancel_timer() disables interrupts, the event is either
executed before cancel_timer() or when the timer interrupt handler
starts running the event is already disabled.
2013-10-31 01:49:43 +01:00
Pawel Dziepak
c8dd9f7780 kernel: Add thread_unblock() and use it where possible 2013-10-30 03:58:36 +01:00
Pawel Dziepak
9c0ff0eed1 kernel: Add cpufreq module for Intel P-states
Since Sandy Bridge managing P-states on Intel processors is much easier
and more powerful than when using previous versions of EIST.
2013-10-30 00:55:03 +01:00
Pawel Dziepak
22d8248267 kernel: Add support and interface for cpufreq modules 2013-10-30 00:48:07 +01:00
Pawel Dziepak
978fc08065 scheduler: Remove support for running different schedulers
Simple scheduler behaves exactly the same as affine scheduler with a
single core. Obviously, affine scheduler is more complicated thus
introduces greater overhead but quite a lot of multicore logic has been
disabled on single core systems in the previous commit.
2013-10-24 02:04:03 +02:00
Pawel Dziepak
ed8627e535 kernel/util: Fix MinMaxHeap::_GrowHeap() 2013-10-24 00:59:58 +02:00
Pawel Dziepak
31a75d402f kernel: Protect lock internals with per-lock spinlock 2013-10-24 00:01:18 +02:00
Pawel Dziepak
4c4994435d kernel/util: Fixes in [MinMax]Heap implementation 2013-10-22 23:56:31 +02:00
Pawel Dziepak
5cf9b69b49 kernel/util: Minor improvements in Heap and MinMaxHeap
* [MinMax]Heap::ModifyKey(): Do not attempt to move node if the key
   actually hasn't changed.
 * Allow allocating initial array at construction.
2013-10-21 21:24:05 +02:00
Pawel Dziepak
7ea42e7add kernel: Remove invoke_scheduler_if_idle 2013-10-21 02:38:57 +02:00
Pawel Dziepak
ea79da9500 kernel: Remove support for thread_queue 2013-10-21 02:30:20 +02:00
Pawel Dziepak
cd8d4e39fd kernel: Introduce scheduler modes of operation 2013-10-21 02:17:00 +02:00
Pawel Dziepak
343c489689 kernel: Create CPU topology tree 2013-10-21 01:33:35 +02:00
Pawel Dziepak
5cbf227236 kernel/util: Allocate only one array in MinMaxHeap 2013-10-20 23:33:55 +02:00
Pawel Dziepak
18c0d163ed kernel/util: Add MinMaxHeap implementation 2013-10-17 19:22:29 +02:00