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freebsd-dev/sys/kern
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Nate Lawson 0d4ac62a35 Add an interface for drivers to be notified of changes to CPU frequency. 
cpufreq_pre_change is called before the change, giving each driver a chance
to revoke the change.  cpufreq_post_change provides the results of the
change (success or failure).  cpufreq_levels_changed gives the unit number
of the cpufreq device whose number of available levels has changed.  Hook
in all the drivers I could find that needed it.

* TSC: update TSC frequency value.  When the available levels change, take the
highest possible level and notify the timecounter set_cputicker() of that
freq.  This gets rid of the "calcru: runtime went backwards" messages.
* identcpu: updates the sysctl hw.clockrate value
* Profiling: if profiling is active when the clock changes, let the user
know the results may be inaccurate.

Reviewed by:	bde, phk
MFC after:	1 month
2007-03-26 18:03:29 +00:00
..
bus_if.m o break newbus api: add a new argument of type driver_filter_t to 2007-02-23 12:19:07 +00:00
clock_if.m
cpufreq_if.m
device_if.m
genassym.sh
imgact_aout.c
imgact_elf32.c
imgact_elf64.c
imgact_elf.c Use FOREACH_PROC_IN_SYSTEM instead of using its unrolled form. 2007-01-17 14:58:53 +00:00
imgact_gzip.c
imgact_shell.c
inflate.c
init_main.c - Remove setrunqueue and replace it with direct calls to sched_add(). 2007-01-23 08:46:51 +00:00
init_sysent.c
kern_acct.c Use sx_sleep() in the main loop of the accounting kthread. 2007-03-09 23:29:31 +00:00
kern_alq.c Backout rev 1.17, msleep() can't be used with a spinlock. 2007-03-06 12:08:38 +00:00
kern_clock.c Instead of doing comparisons using the pcpu area to see if 2007-03-08 06:44:34 +00:00
kern_condvar.c Rename the cv_*wait*() functions to _cv_*wait*() and change their second 2007-03-21 22:22:13 +00:00
kern_conf.c Use int instead of u_int for the 'extra' argument to the 2007-02-02 22:27:45 +00:00
kern_context.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
kern_cpu.c Add an interface for drivers to be notified of changes to CPU frequency. 2007-03-26 18:03:29 +00:00
kern_descrip.c Just use 'fdrop()' instead of 'FILE_LOCK(); fdrop_locked()' in 2007-03-15 21:19:21 +00:00
kern_environment.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
kern_event.c Remove 'MPSAFE' annotations from the comments above most system calls: all 2007-03-04 22:36:48 +00:00
kern_exec.c Update a comment: we usually call exec_vmspace_new with Giant not held, 2007-03-25 10:05:44 +00:00
kern_exit.c Rename the 'mtx_object', 'rw_object', and 'sx_object' members of mutexes, 2007-03-21 21:20:51 +00:00
kern_fork.c Remove 'MPSAFE' annotations from the comments above most system calls: all 2007-03-04 22:36:48 +00:00
kern_idle.c - Remove setrunqueue and replace it with direct calls to sched_add(). 2007-01-23 08:46:51 +00:00
kern_intr.c - Don't do the interrupt storm protection stuff for software interrupt 2007-03-02 17:01:45 +00:00
kern_jail.c Minor simplification. 2007-03-09 05:22:10 +00:00
kern_kse.c Rename the 'mtx_object', 'rw_object', and 'sx_object' members of mutexes, 2007-03-21 21:20:51 +00:00
kern_kthread.c - Remove setrunqueue and replace it with direct calls to sched_add(). 2007-01-23 08:46:51 +00:00
kern_ktr.c
kern_ktrace.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
kern_linker.c Remove 'MPSAFE' annotations from the comments above most system calls: all 2007-03-04 22:36:48 +00:00
kern_lock.c Rename the 'mtx_object', 'rw_object', and 'sx_object' members of mutexes, 2007-03-21 21:20:51 +00:00
kern_lockf.c
kern_malloc.c
kern_mbuf.c Fix for problems that occur when all mbuf clusters migrate to the mbuf packet 2007-01-25 01:05:23 +00:00
kern_mib.c
kern_module.c Remove 'MPSAFE' annotations from the comments above most system calls: all 2007-03-04 22:36:48 +00:00
kern_mtxpool.c
kern_mutex.c - Simplify the #ifdef's for adaptive mutexes and rwlocks by conditionally 2007-03-22 16:09:23 +00:00
kern_ntptime.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
kern_physio.c
kern_pmc.c
kern_poll.c Threading cleanup.. part 2 of several. 2006-12-06 06:34:57 +00:00
kern_priv.c
kern_proc.c Stop setting ki_ocomm (thread name) to the proc name by default, as nothing 2007-03-23 04:01:08 +00:00
kern_prot.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
kern_resource.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
kern_rwlock.c - Simplify the #ifdef's for adaptive mutexes and rwlocks by conditionally 2007-03-22 16:09:23 +00:00
kern_sema.c
kern_shutdown.c Remove 'MPSAFE' annotations from the comments above most system calls: all 2007-03-04 22:36:48 +00:00
kern_sig.c Rename the 'mtx_object', 'rw_object', and 'sx_object' members of mutexes, 2007-03-21 21:20:51 +00:00
kern_subr.c Removes useless (flags | ) KASSERT. The ^ one that actually 2007-01-16 11:40:55 +00:00
kern_switch.c - Change types for necent runq additions to u_char rather than int. 2007-02-08 01:52:25 +00:00
kern_sx.c Rename the 'mtx_object', 'rw_object', and 'sx_object' members of mutexes, 2007-03-21 21:20:51 +00:00
kern_synch.c Rename the 'mtx_object', 'rw_object', and 'sx_object' members of mutexes, 2007-03-21 21:20:51 +00:00
kern_syscalls.c
kern_sysctl.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
kern_tc.c
kern_thr.c - Remove setrunqueue and replace it with direct calls to sched_add(). 2007-01-23 08:46:51 +00:00
kern_thread.c Over NFS, an open() call could result in multiple over-the-wire 2007-03-09 04:02:38 +00:00
kern_time.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
kern_timeout.c
kern_umtx.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
kern_uuid.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
kern_xxx.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
ksched.c Threading cleanup.. part 2 of several. 2006-12-06 06:34:57 +00:00
link_elf_obj.c
link_elf.c Mark the kernel linker file as linked so that it is visible to the various 2007-02-26 16:48:14 +00:00
linker_if.m
Make.tags.inc Makefile changes to reflect moving sys/isofs/cd9660 to sys/fs/cd9660. 2007-02-11 14:01:32 +00:00
Makefile
makesyscalls.sh
md4c.c
md5c.c
p1003_1b.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
posix4_mib.c
sched_4bsd.c Use pause() rather than tsleep() on stack variables and function pointers. 2007-02-27 17:23:29 +00:00
sched_core.c Instead of doing comparisons using the pcpu area to see if 2007-03-08 06:44:34 +00:00
sched_ule.c - Handle the case where slptime == runtime. 2007-03-17 23:32:48 +00:00
serdev_if.m
subr_acl_posix1e.c
subr_autoconf.c
subr_blist.c
subr_bus.c Use NULL rather than 0 for various pointer constants. 2007-02-26 19:28:18 +00:00
subr_clist.c
subr_clock.c
subr_devstat.c
subr_disk.c
subr_eventhandler.c
subr_fattime.c
subr_firmware.c Cleanup and document the implementation of firmware(9) based on 2007-02-15 17:21:31 +00:00
subr_hints.c
subr_kdb.c
subr_kobj.c
subr_lock.c general LOCK_PROFILING cleanup 2007-02-26 08:26:44 +00:00
subr_log.c
subr_mbpool.c
subr_mchain.c
subr_module.c
subr_msgbuf.c
subr_param.c
subr_pcpu.c
subr_power.c
subr_prf.c Instead of doing comparisons using the pcpu area to see if 2007-03-08 06:44:34 +00:00
subr_prof.c Remove 'MPSAFE' annotations from the comments above most system calls: all 2007-03-04 22:36:48 +00:00
subr_rman.c Fix a case in rman_manage_region() where the resource list would get missorted. 2007-02-23 22:53:56 +00:00
subr_rtc.c
subr_sbuf.c
subr_scanf.c
subr_sleepqueue.c Cleaner fix for handling declaration of loop variable under INVARIANTS 2006-12-17 00:14:20 +00:00
subr_smp.c Instead of doing comparisons using the pcpu area to see if 2007-03-08 06:44:34 +00:00
subr_stack.c
subr_taskqueue.c - Remove setrunqueue and replace it with direct calls to sched_add(). 2007-01-23 08:46:51 +00:00
subr_trap.c Remove 'MPSAFE' annotations from the comments above most system calls: all 2007-03-04 22:36:48 +00:00
subr_turnstile.c - Remove setrunqueue and replace it with direct calls to sched_add(). 2007-01-23 08:46:51 +00:00
subr_unit.c
subr_witness.c Rename the 'mtx_object', 'rw_object', and 'sx_object' members of mutexes, 2007-03-21 21:20:51 +00:00
sys_generic.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
sys_pipe.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
sys_process.c Remove 'MPSAFE' annotations from the comments above most system calls: all 2007-03-04 22:36:48 +00:00
sys_socket.c Move to ANSI C function headers. Re-wrap some comments. 2007-03-04 17:50:46 +00:00
syscalls.c
syscalls.master
systrace_args.c
sysv_ipc.c Sync up PRIV_IPC_{ADMIN,READ,WRITE} priv checks in ipcperm() with 2007-02-20 00:06:59 +00:00
sysv_msg.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
sysv_sem.c Avoid manipulating semu_list outside of the scope of SEMUNDO_LOCK(). This 2007-03-26 17:41:14 +00:00
sysv_shm.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
tty_compat.c
tty_conf.c
tty_cons.c
tty_pts.c Canonicalize copyrights in some files I hold copyrights on: 2007-01-08 17:49:59 +00:00
tty_pty.c
tty_subr.c
tty_tty.c
tty.c Back out rev. 1.266. The real cause for the recent panics has been fixed 2006-12-20 02:49:59 +00:00
uipc_accf.c
uipc_cow.c
uipc_debug.c Teach DDB how to print sockets, socket buffers, protosw's, and domain 2007-02-15 01:28:22 +00:00
uipc_domain.c
uipc_mbuf2.c
uipc_mbuf.c Unbreak writes of 0 bytes. Zero byte writes happen when only ancillary 2007-01-22 14:50:28 +00:00
uipc_mqueue.c Make insmntque() externally visibile and allow it to fail (e.g. during 2007-03-13 01:50:27 +00:00
uipc_sem.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
uipc_sockbuf.c Following movement of functions from uipc_socket2.c to uipc_socket.c and 2007-03-26 17:05:09 +00:00
uipc_socket.c Following movement of functions from uipc_socket2.c to uipc_socket.c and 2007-03-26 17:05:09 +00:00
uipc_syscalls.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
uipc_usrreq.c In uipc_close(), we no longer always free the unpcb, as the last reference 2007-03-12 14:52:00 +00:00
vfs_acl.c Replay minor system call comment cleanup applied to kern_acl.c in a race 2007-03-05 13:26:07 +00:00
vfs_aio.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
vfs_bio.c Correct a comment typo 2007-03-25 10:07:23 +00:00
vfs_cache.c Further system call comment cleanup: 2007-03-05 13:10:58 +00:00
vfs_cluster.c Change these descriptions of memory types used in malloc(9), as their 2007-03-05 00:21:40 +00:00
vfs_default.c Remove VFS_VPTOFH entirely. API is already broken and it is good time to 2007-02-16 17:32:41 +00:00
vfs_export.c Move vnode-to-file-handle translation from vfs_vptofh to vop_vptofh method. 2007-02-15 22:08:35 +00:00
vfs_extattr.c Update comments to reflect changes in the extattrctl() code. 2006-12-23 00:30:03 +00:00
vfs_hash.c Make insmntque() externally visibile and allow it to fail (e.g. during 2007-03-13 01:50:27 +00:00
vfs_init.c Remove VFS_VPTOFH entirely. API is already broken and it is good time to 2007-02-16 17:32:41 +00:00
vfs_lookup.c If both ISDOTDOT and NOCROSSMOUNT are set then lookup() might breaks out 2007-02-15 09:53:49 +00:00
vfs_mount.c Don't deny unmounting file systems for jailed processes immediately, allow 2007-03-18 02:39:19 +00:00
vfs_subr.c Make insmntque() externally visibile and allow it to fail (e.g. during 2007-03-13 01:50:27 +00:00
vfs_syscalls.c If vn_open() fails during kern_open(), don't fdrop() the new file object 2007-03-21 19:32:08 +00:00
vfs_vnops.c Add a VNASSERT to vn_close to detect if v_writecount is going 2007-02-12 22:53:01 +00:00
vnode_if.src Move vnode-to-file-handle translation from vfs_vptofh to vop_vptofh method. 2007-02-15 22:08:35 +00:00