freebsd-skq/sys/kern
jhibbits a26a1b2cb6 Introduce PMCR-based cpufreq(4) driver, for IBM POWER8 and POWER9 systems
Summary: POWER8 and POWER9 use a single CPU register, per core, to change clock
speed.  Everything else is handled by the on-chip controller.  This change
necessitates a change to the cpufreq global kernel driver to bump supported
levels, as the device tree for these systems can have theoretically 256
different options.  On my POWER9 Talos, the list consists of 100 items.  At
16.67MHz intervals, that allows for a change of roughly 1.67GHz between lowest
and highest.

This has only been tested on the POWER9.  However, since they're similar, this
should work on POWER8 as well.

Reviewed By: nwhitehorn
Differential Revision: https://reviews.freebsd.org/D15932
2018-06-21 14:26:43 +00:00
..
bus_if.m
capabilities.conf Name the implementation of brk and sbrk sys_break(). 2018-06-14 21:27:25 +00:00
clock_if.m
cpufreq_if.m
device_if.m Teach makeobjops.awk to accept PROLOG and EPILOG blocks before 2017-12-31 09:23:19 +00:00
genassym.sh
imgact_aout.c i386 4/4G split. 2018-04-13 20:30:49 +00:00
imgact_binmisc.c Use NULL for SYSINIT's last arg, which is a pointer type 2018-05-18 17:58:09 +00:00
imgact_elf32.c
imgact_elf64.c
imgact_elf.c Correct pointer subtraction in KASSERT(). 2018-05-29 17:49:03 +00:00
imgact_gzip.c Use C99 designated initializers for struct execsw 2018-03-13 13:09:10 +00:00
imgact_shell.c Use C99 designated initializers for struct execsw 2018-03-13 13:09:10 +00:00
inflate.c
init_main.c Add debug.verbose_sysinit tunable for VERBOSE_SYSINIT 2018-06-20 19:23:56 +00:00
init_sysent.c Regen after 335177 (rename sys_obreak to sys_break). 2018-06-14 21:29:31 +00:00
kern_acct.c
kern_alq.c
kern_clock.c epoch: skip poll function call in hardclock unless there are callbacks pending 2018-05-17 21:39:15 +00:00
kern_clocksource.c stop and restart kernel event timers in the suspend / resume cycle 2018-05-21 20:23:04 +00:00
kern_condvar.c
kern_conf.c conf: revert last change and annotate unused var instead 2018-05-19 05:07:03 +00:00
kern_cons.c add support for console resuming, implement it for uart, use on x86 2018-05-29 16:16:24 +00:00
kern_context.c
kern_cpu.c Introduce PMCR-based cpufreq(4) driver, for IBM POWER8 and POWER9 systems 2018-06-21 14:26:43 +00:00
kern_cpuset.c kern_cpuset: fix small leak on error path 2018-05-26 14:23:11 +00:00
kern_ctf.c Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
kern_descrip.c ANSIfy sys/kern 2018-06-01 13:26:45 +00:00
kern_dtrace.c systrace: track it like sdt probes 2018-04-27 15:16:34 +00:00
kern_dump.c Print the dump progress indicator after calling dump_start(). 2018-05-01 17:32:43 +00:00
kern_environment.c Permit the kernel environment to set an array of numeric values for a single 2018-06-20 20:04:20 +00:00
kern_et.c
kern_event.c kevent: annotate unused stack local 2018-05-19 05:06:18 +00:00
kern_exec.c Use a single, consistent approach to returning success versus failure in 2018-06-04 16:28:06 +00:00
kern_exit.c Add PROC_PDEATHSIG_SET to procctl interface. 2018-04-18 21:31:13 +00:00
kern_fail.c
kern_ffclock.c
kern_fork.c Reduce contention on the proctree lock during heavy package build. 2018-02-20 02:18:30 +00:00
kern_hhook.c
kern_idle.c
kern_intr.c Yank crufty INTR_FILTER option 2018-05-24 17:06:00 +00:00
kern_jail.c Instead of using hand-rolled loops where not needed switch them 2018-06-20 11:42:06 +00:00
kern_khelp.c
kern_kthread.c hwpmc: log name->pid, name->tid mappings 2018-06-05 04:26:40 +00:00
kern_ktr.c
kern_ktrace.c Reduce overhead of ktrace checks in the common case. 2018-05-09 00:00:47 +00:00
kern_linker.c Use NULL for SYSINIT's last arg, which is a pointer type 2018-05-18 17:58:09 +00:00
kern_lock.c remove unused locked variable in lockmgr_unlock_fast_path 2018-05-19 03:58:40 +00:00
kern_lockf.c lockf: annotate LOCKF_DEBUG only var 2018-05-19 05:04:38 +00:00
kern_lockstat.c lockstat: track lockstat just like sdt probes 2018-04-24 01:04:10 +00:00
kern_loginclass.c call racct_proc_ucred_changed() under the proc lock 2018-04-20 13:08:04 +00:00
kern_malloc.c Make UMA and malloc(9) return non-executable memory in most cases. 2018-06-13 17:04:41 +00:00
kern_mbuf.c Add an mbuf allocator for netdump. 2018-05-06 00:19:48 +00:00
kern_mib.c clk: Put the sysctls under hw.clock instead of clock 2018-04-27 00:12:00 +00:00
kern_module.c Use NULL for SYSINIT's last arg, which is a pointer type 2018-05-18 17:58:09 +00:00
kern_mtxpool.c
kern_mutex.c Remove an unused argument to turnstile_unpend. 2018-06-02 22:37:53 +00:00
kern_ntptime.c Fix several leaks of kernel stack data through paddings. 2018-03-27 18:05:51 +00:00
kern_osd.c
kern_physio.c physio: avoid uninitialized variables 2018-05-19 04:09:58 +00:00
kern_pmc.c hwpmc: simplify calling convention for hwpmc interrupt handling 2018-06-08 04:58:03 +00:00
kern_poll.c
kern_priv.c
kern_proc.c Instead of using hand-rolled loops where not needed switch them 2018-06-20 11:42:06 +00:00
kern_procctl.c Rename PROC_PDEATHSIG_SET -> PROC_PDEATHSIG_CTL and PROC_PDEATHSIG_GET 2018-04-20 15:19:27 +00:00
kern_prot.c call racct_proc_ucred_changed() under the proc lock 2018-04-20 13:08:04 +00:00
kern_racct.c call racct_proc_ucred_changed() under the proc lock 2018-04-20 13:08:04 +00:00
kern_rangelock.c
kern_rctl.c call racct_proc_ucred_changed() under the proc lock 2018-04-20 13:08:04 +00:00
kern_resource.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
kern_rmlock.c Remove an unused argument to turnstile_unpend. 2018-06-02 22:37:53 +00:00
kern_rwlock.c Remove an unused argument to turnstile_unpend. 2018-06-02 22:37:53 +00:00
kern_sdt.c
kern_sema.c
kern_sendfile.c Revert second chunk of r333860. The warning from gcc is false positive. The 2018-05-29 21:45:15 +00:00
kern_sharedpage.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
kern_shutdown.c remove unused variable 2018-05-19 03:55:42 +00:00
kern_sig.c signotify: don't create a stack local that isn't used on non-debug builds 2018-05-19 03:57:41 +00:00
kern_switch.c Remove incorrect owepreempt assertion added in r334062 2018-05-23 10:13:17 +00:00
kern_sx.c sx: fixup a braino in r334024 2018-05-22 15:13:25 +00:00
kern_synch.c Reduce sdt-related branch-fest in mi_switch. 2018-05-22 08:27:33 +00:00
kern_syscalls.c Avoid calls to syscall_thread_enter/exit for statically defined syscalls 2018-05-07 22:29:32 +00:00
kern_sysctl.c Permit the kernel environment to set an array of numeric values for a single 2018-06-20 20:04:20 +00:00
kern_tc.c tc: bcopy -> memcpy 2018-05-04 22:48:10 +00:00
kern_thr.c hwpmc: log name->pid, name->tid mappings 2018-06-05 04:26:40 +00:00
kern_thread.c hwpmc: log name->pid, name->tid mappings 2018-06-05 04:26:40 +00:00
kern_time.c nanosleep(2): Fix bogus incrementing of rmtp by tc_tick_sbt on [EINTR]. 2018-02-14 18:43:50 +00:00
kern_timeout.c
kern_tslog.c
kern_umtx.c umtx: don't call umtxq_getchain unless the value is needed 2018-05-19 05:09:10 +00:00
kern_uuid.c
kern_xxx.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
ksched.c
link_elf_obj.c link_elf_obj: correct an error message 2018-05-30 12:55:27 +00:00
link_elf.c Use M_EXEC when calling malloc() to allocate the memory to store the module, 2018-06-14 23:10:10 +00:00
linker_if.m
Make.tags.inc
Makefile Don't use an .OBJDIR for 'make sysent'. 2018-01-29 19:14:15 +00:00
makesyscalls.sh makesyscalls: simplify capenabled pipeline 2018-06-11 18:57:40 +00:00
md4c.c
md5c.c
msi_if.m
p1003_1b.c
pic_if.m
posix4_mib.c Use NULL for SYSINIT's last arg, which is a pointer type 2018-05-18 17:58:09 +00:00
sched_4bsd.c Inlined sched_userret. 2018-05-07 23:36:16 +00:00
sched_ule.c Inlined sched_userret. 2018-05-07 23:36:16 +00:00
serdev_if.m
stack_protector.c
subr_acl_nfs4.c
subr_acl_posix1e.c
subr_autoconf.c Instrument "boot holds" for the benefit of the TSLOG framework. These 2017-12-31 09:23:52 +00:00
subr_blist.c
subr_bufring.c
subr_bus_dma.c
subr_bus.c Make the data returned by devinfo harder to overflow. 2018-05-31 02:57:58 +00:00
subr_busdma_bufalloc.c Implement NUMA support in uma(9) and malloc(9). Allocations from specific 2018-01-12 23:25:05 +00:00
subr_capability.c kern_sendit: use pre-initialized rights 2018-05-23 01:48:09 +00:00
subr_clock.c Replace the existing print_ct() private debugging function with a set of 2018-02-12 16:25:56 +00:00
subr_compressor.c Fix the test for SET_FOREACH termination. 2018-02-15 17:35:40 +00:00
subr_counter.c Since 'ticks' is an int, it may wrap around and cr_ticks at a certain 2018-06-15 21:36:16 +00:00
subr_devmap.c Add pmap_mapdev_attr for arm64 2018-06-20 16:07:35 +00:00
subr_devstat.c
subr_disk.c Implement a 'car limit' for bioq. 2018-06-13 16:48:07 +00:00
subr_dummy_vdso_tc.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
subr_epoch.c epoch(9): make epoch closer to style(9) 2018-05-30 03:39:57 +00:00
subr_eventhandler.c Fix initialization of eventhandler mutex. 2018-03-19 22:43:27 +00:00
subr_fattime.c Use const pointers for input data not modified by clock utility functions. 2018-02-06 22:17:01 +00:00
subr_firmware.c
subr_gtaskqueue.c iflib: mark irq allocation name parameter as constant 2018-05-29 21:56:39 +00:00
subr_hash.c Unsign some values related to allocation. 2018-01-22 02:08:10 +00:00
subr_hints.c subr_hints: simplify a little bit 2018-06-21 14:04:02 +00:00
subr_intr.c
subr_kdb.c Instead of using hand-rolled loops where not needed switch them 2018-06-20 11:42:06 +00:00
subr_kobj.c
subr_lock.c locks: tweak backoff a little bit 2018-04-08 16:34:10 +00:00
subr_log.c
subr_mchain.c
subr_module.c
subr_msgbuf.c
subr_param.c
subr_pcpu.c Use NULL for SYSINIT's last arg, which is a pointer type 2018-05-18 17:58:09 +00:00
subr_pctrie.c
subr_pidctrl.c When pidctrl_daemon() is called multiple times within an interval, it 2018-06-07 07:48:50 +00:00
subr_power.c
subr_prf.c fix uninitialized variable warning 2018-05-19 03:49:36 +00:00
subr_prof.c ANSIfy sys/kern 2018-06-01 13:26:45 +00:00
subr_rman.c
subr_rtc.c Fix bad indentation. Whitespace only, no functional changes. 2018-02-13 17:38:08 +00:00
subr_sbuf.c
subr_scanf.c
subr_sfbuf.c Remove SFBUF_OPTIONAL_DIRECT_MAP and such hacks, replacing them across the 2018-01-19 17:46:31 +00:00
subr_sglist.c
subr_sleepqueue.c turnstile / sleepqueue: annotate variables only used by debug builds 2018-05-19 05:00:16 +00:00
subr_smp.c
subr_stack.c
subr_syscall.c systrace: track it like sdt probes 2018-04-27 15:16:34 +00:00
subr_taskqueue.c Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
subr_terminal.c teken, vt(4): New callbacks to lock the terminal once 2018-05-16 09:01:02 +00:00
subr_trap.c hwpmc: support sampling both kernel and user stacks when interrupted in kernel 2018-06-04 01:10:23 +00:00
subr_turnstile.c Remove an unused argument to turnstile_unpend. 2018-06-02 22:37:53 +00:00
subr_uio.c simplify control flow so that gcc knows we never pass save to curthread_pflags_restore 2018-05-19 04:04:44 +00:00
subr_unit.c
subr_vmem.c Make UMA and malloc(9) return non-executable memory in most cases. 2018-06-13 17:04:41 +00:00
subr_witness.c convert inpcbinfo hash and info rwlocks to epoch + mutex 2018-06-19 01:54:00 +00:00
sys_capability.c capsicum: propagate const correctness 2018-05-19 05:14:05 +00:00
sys_generic.c Fix the build after r333457 2018-05-10 13:19:42 +00:00
sys_getrandom.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
sys_pipe.c ANSIfy sys/kern 2018-06-01 13:26:45 +00:00
sys_procdesc.c Eliminate the overhead of gratuitous repeated reinitialization of cap_rights 2018-05-09 18:47:24 +00:00
sys_process.c sys_process.c fix set but not used warning 2018-05-19 03:48:35 +00:00
sys_socket.c Ensure that the vnet is set when calling pru_sockaddr() and 2018-01-11 20:26:17 +00:00
syscalls.c Regen after r334223: make vadvise compat freebsd11. 2018-05-25 20:41:26 +00:00
syscalls.master Name the implementation of brk and sbrk sys_break(). 2018-06-14 21:27:25 +00:00
systrace_args.c Regen after 335177 (rename sys_obreak to sys_break). 2018-06-14 21:29:31 +00:00
sysv_ipc.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
sysv_msg.c ANSIfy sys/kern 2018-06-01 13:26:45 +00:00
sysv_sem.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
sysv_shm.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
tty_compat.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
tty_info.c
tty_inq.c tty: use __unused annotation instead to silence warnings 2018-05-19 04:48:26 +00:00
tty_outq.c tty: use __unused annotation instead to silence warnings 2018-05-19 04:48:26 +00:00
tty_pts.c Move uio enums to sys/_uio.h. 2018-03-27 15:20:03 +00:00
tty_tty.c
tty_ttydisc.c
tty.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
uipc_accf.c
uipc_debug.c Load balance sockets with new SO_REUSEPORT_LB option. 2018-06-06 15:45:57 +00:00
uipc_domain.c
uipc_mbuf2.c
uipc_mbuf.c Add a SPD cache to speed up lookups. 2018-05-22 15:54:25 +00:00
uipc_mbufhash.c
uipc_mqueue.c mqueue: avoid unused variables 2018-05-19 04:10:53 +00:00
uipc_sem.c Eliminate the overhead of gratuitous repeated reinitialization of cap_rights 2018-05-09 18:47:24 +00:00
uipc_shm.c
uipc_sockbuf.c This commit brings in a new refactored TCP stack called Rack. 2018-06-07 18:18:13 +00:00
uipc_socket.c limit change to fixing controlp handling pending review 2018-06-11 17:10:19 +00:00
uipc_syscalls.c kern_sendit: use pre-initialized rights 2018-05-23 01:48:09 +00:00
uipc_usrreq.c AF_UNIX: bring uipc_ready in compliance with new locking protocol 2018-06-08 20:31:59 +00:00
vfs_acl.c Reduce duplication in __acl_*_(file|link). 2018-02-15 21:24:43 +00:00
vfs_aio.c Eliminate the overhead of gratuitous repeated reinitialization of cap_rights 2018-05-09 18:47:24 +00:00
vfs_bio.c Avoid completing I/O when dumping core after a panic. 2018-06-01 23:49:32 +00:00
vfs_cache.c Sometimes it is helpful to get the path for a vnode. 2018-06-20 08:34:29 +00:00
vfs_cluster.c ANSIfy sys/kern 2018-06-01 13:26:45 +00:00
vfs_default.c vfs: simplify vop_stdlock/unlock 2018-05-20 04:45:05 +00:00
vfs_export.c Switch RIB and RADIX_NODE_HEAD lock from rwlock(9) to rmlock(9). 2018-06-16 08:26:23 +00:00
vfs_extattr.c Reduce duplication in extattr_*_(file|link) syscalls. 2018-02-05 19:06:34 +00:00
vfs_hash.c
vfs_init.c Make it easier for filesystems to count themselves as jail-enabled, 2018-05-04 20:54:27 +00:00
vfs_lookup.c vfs: annotate variables only used by debug builds as __unused 2018-05-19 04:59:39 +00:00
vfs_mount.c Make it easier for filesystems to count themselves as jail-enabled, 2018-05-04 20:54:27 +00:00
vfs_mountroot.c Remove Giant from init creation and vfs_mountroot. 2018-03-21 14:46:54 +00:00
vfs_subr.c Revert r334708 2018-06-06 15:12:19 +00:00
vfs_syscalls.c Fix the encoding of major and minor numbers in 64-bit dev_t by restoring 2018-06-13 12:22:00 +00:00
vfs_vnops.c ANSIfy sys/kern 2018-06-01 13:26:45 +00:00
vnode_if.src Use long for the last argument to VOP_PATHCONF rather than a register_t. 2018-01-17 22:36:58 +00:00