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* MFi386: revision 251039Yoshihiro Takahashi2013-06-011-1/+1
| | | | | | | Use slightly more idiomatic expression to get the address of array. Notes: svn path=/head/; revision=251222
* Tidy up some CVS workarounds.Peter Wemm2013-05-122-2/+0
| | | | Notes: svn path=/head/; revision=250544
* - Correct mispellings of word resourceGabor Kovesdan2013-04-171-2/+2
| | | | | | | Submitted by: Christoph Mallon <christoph.mallon@gmx.de> Notes: svn path=/head/; revision=249586
* Merge from projects/counters: counter(9).Gleb Smirnoff2013-04-081-0/+6
| | | | | | | | | | | | | | | | Introduce counter(9) API, that implements fast and raceless counters, provided (but not limited to) for gathering of statistical data. See http://lists.freebsd.org/pipermail/freebsd-arch/2013-April/014204.html for more details. In collaboration with: kib Reviewed by: luigi Tested by: ae, ray Sponsored by: Nginx, Inc. Notes: svn path=/head/; revision=249268
* Remove all legacy ATA code parts, not used since options ATA_CAM enabled inAlexander Motin2013-04-042-2/+0
| | | | | | | | | | | | most kernels before FreeBSD 9.0. Remove such modules and respective kernel options: atadisk, ataraid, atapicd, atapifd, atapist, atapicam. Remove the atacontrol utility and some man pages. Remove useless now options ATA_CAM. No objections: current@, stable@ MFC after: never Notes: svn path=/head/; revision=249083
* Switch the vm_object mutex to be a rwlock. This will enable in theAttilio Rao2013-03-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | future further optimizations where the vm_object lock will be held in read mode most of the time the page cache resident pool of pages are accessed for reading purposes. The change is mostly mechanical but few notes are reported: * The KPI changes as follow: - VM_OBJECT_LOCK() -> VM_OBJECT_WLOCK() - VM_OBJECT_TRYLOCK() -> VM_OBJECT_TRYWLOCK() - VM_OBJECT_UNLOCK() -> VM_OBJECT_WUNLOCK() - VM_OBJECT_LOCK_ASSERT(MA_OWNED) -> VM_OBJECT_ASSERT_WLOCKED() (in order to avoid visibility of implementation details) - The read-mode operations are added: VM_OBJECT_RLOCK(), VM_OBJECT_TRYRLOCK(), VM_OBJECT_RUNLOCK(), VM_OBJECT_ASSERT_RLOCKED(), VM_OBJECT_ASSERT_LOCKED() * The vm/vm_pager.h namespace pollution avoidance (forcing requiring sys/mutex.h in consumers directly to cater its inlining functions using VM_OBJECT_LOCK()) imposes that all the vm/vm_pager.h consumers now must include also sys/rwlock.h. * zfs requires a quite convoluted fix to include FreeBSD rwlocks into the compat layer because the name clash between FreeBSD and solaris versions must be avoided. At this purpose zfs redefines the vm_object locking functions directly, isolating the FreeBSD components in specific compat stubs. The KPI results heavilly broken by this commit. Thirdy part ports must be updated accordingly (I can think off-hand of VirtualBox, for example). Sponsored by: EMC / Isilon storage division Reviewed by: jeff Reviewed by: pjd (ZFS specific review) Discussed with: alc Tested by: pho Notes: svn path=/head/; revision=248084
* MFcalloutng:Davide Italiano2013-02-281-6/+7
| | | | | | | | | | | | | | When CPU becomes idle, cpu_idleclock() calculates time to the next timer event in order to reprogram hw timer. Return that time in sbintime_t to the caller and pass it to acpi_cpu_idle(), where it can be used as one more factor (quite precise) to extimate furter sleep time and choose optimal sleep state. This is a preparatory change for further callout improvements will be committed in the next days. The commmit is not targeted for MFC. Notes: svn path=/head/; revision=247454
* Remove support for plip from the GENERIC kernel as no systems in theEitan Adler2013-02-011-1/+0
| | | | | | | | | | | | | | last 10 years require this support. Discussed with: db Discussed with: kib Reviewed by: imp Reviewed by: jhb Reviewed by: -hackers Approved by: cperciva (mentor) Notes: svn path=/head/; revision=246222
* MFi386: Make similar changes that were made to atkbdc in r245315.Warner Losh2013-01-111-7/+9
| | | | Notes: svn path=/head/; revision=245317
* MFi386: r232521Yoshihiro Takahashi2013-01-041-33/+0
| | | | | | | Exclude USB drivers (except umass and ukbd) from main kernel image. Notes: svn path=/head/; revision=245035
* As discussed on -current last October, remove the firewire drivers fromDag-Erling Smørgrav2013-01-031-1/+0
| | | | | | | GENERIC. Notes: svn path=/head/; revision=244992
* Reduce diffs against i386.Yoshihiro Takahashi2012-11-101-1/+3
| | | | Notes: svn path=/head/; revision=242869
* Fix some KASSERTs.Yoshihiro Takahashi2012-11-101-1/+3
| | | | | | | They are missing changes from r208833, r227394 and r227442. Notes: svn path=/head/; revision=242868
* MFi386: r211924Yoshihiro Takahashi2012-11-101-1/+10
| | | | | | | Register an interrupt vector for DTrace return probes. Notes: svn path=/head/; revision=242867
* Use ANSI prototype to fix build with clang.Yoshihiro Takahashi2012-11-101-77/+43
| | | | | | | MFC after: 1 week Notes: svn path=/head/; revision=242866
* The 'testing memory' patch gets printed too many timesEitan Adler2012-10-221-2/+0
| | | | | | | Approved by: cperciva (implicit) Notes: svn path=/head/; revision=241880
* Explain the upcoming delay by printing a message when the kernelEitan Adler2012-10-221-0/+2
| | | | | | | | | | | is about to begin testing memory. Reviewed by: dteske, adri Approved by: cperciva MFC after: 1 week Notes: svn path=/head/; revision=241850
* Add an unified macro to deny ability from the compiler to reorderAttilio Rao2012-10-091-1/+1
| | | | | | | | | | | | | instruction loads/stores at its will. The macro __compiler_membar() is currently supported for both gcc and clang, but kernel compilation will fail otherwise. Reviewed by: bde, kib Discussed with: dim, theraven MFC after: 2 weeks Notes: svn path=/head/; revision=241374
* Reverts r234074,234105,234564,234723,234989,235231-235232 and part ofAttilio Rao2012-10-091-5/+0
| | | | | | | | | | | r234247. Use, instead, the static intializer introduced in r239923 for x86 and sparc64 intr_cpus, unwinding the code to the initial version. Reviewed by: marius Notes: svn path=/head/; revision=241371
* MFi386: revision 237445Yoshihiro Takahashi2012-09-231-4/+11
| | | | | | | | | | | | | Commit changes missed from r237435. Properly calculate the signal trampoline addresses after the shared page is enabled. Handle FreeBSD ABIs without shared page support too. MFi386: revision 238792 Introduce curpcb magic variable. Notes: svn path=/head/; revision=240855
* Grammar fix: s/NIC's/NICs/Glen Barber2012-08-261-1/+1
| | | | | | | MFC after: 3 days Notes: svn path=/head/; revision=239699
* Partially revert r217515 so that the mem_range_softc variable is alwaysJohn Baldwin2012-07-091-0/+3
| | | | | | | | | | present on x86 kernels. This fixes the build of kernels that include 'device acpi' but do not include 'device mem'. MFC after: 1 month Notes: svn path=/head/; revision=238310
* Implement mechanism to export some kernel timekeeping data toKonstantin Belousov2012-06-221-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | usermode, using shared page. The structures and functions have vdso prefix, to indicate the intended location of the code in some future. The versioned per-algorithm data is exported in the format of struct vdso_timehands, which mostly repeats the content of in-kernel struct timehands. Usermode reading of the structure can be lockless. Compatibility export for 32bit processes on 64bit host is also provided. Kernel also provides usermode with indication about currently used timecounter, so that libc can fall back to syscall if configured timecounter is unknown to usermode code. The shared data updates are initiated both from the tc_windup(), where a fast task is queued to do the update, and from sysctl handlers which change timecounter. A manual override switch kern.timecounter.fast_gettime allows to turn off the mechanism. Only x86 architectures export the real algorithm data, and there, only for tsc timecounter. HPET counters page could be exported as well, but I prefer to not further glue the kernel and libc ABI there until proper vdso-based solution is developed. Minimal stubs neccessary for non-x86 architectures to still compile are provided. Discussed with: bde Reviewed by: jhb Tested by: flo MFC after: 1 month Notes: svn path=/head/; revision=237433
* MFprojects/zfsd:Alexander Motin2012-05-241-1/+1
| | | | | | | Generalize and unify ses device description. Notes: svn path=/head/; revision=235898
* Add SMP/i386 suspend/resume support.Mitsuru IWASAKI2012-05-181-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most part is merged from amd64. - i386/acpica/acpi_wakecode.S Replaced with amd64 code (from realmode to paging enabling code). - i386/acpica/acpi_wakeup.c Replaced with amd64 code (except for wakeup_pagetables stuff). - i386/include/pcb.h - i386/i386/genassym.c Added PCB new members (CR0, CR2, CR4, DS, ED, FS, SS, GDT, IDT, LDT and TR) needed for suspend/resume, not for context switch. - i386/i386/swtch.s Added suspendctx() and resumectx(). Note that savectx() was not changed and used for suspending (while amd64 code uses it). BSP and AP execute the same sequence, suspendctx(), acpi_wakecode() and resumectx() for suspend/resume (in case of UP system also). - i386/i386/apic_vector.s Added cpususpend(). - i386/i386/mp_machdep.c - i386/include/smp.h Added cpususpend_handler(). - i386/include/apicvar.h - kern/subr_smp.c - sys/smp.h Added IPI_SUSPEND and suspend_cpus(). - i386/i386/initcpu.c - i386/i386/machdep.c - i386/include/md_var.h - pc98/pc98/machdep.c Moved initializecpu() declarations to md_var.h. MFC after: 3 days Notes: svn path=/head/; revision=235622
* Clean up the intr* MD KPI from the SMP dependency, removing a cause ofAttilio Rao2012-04-261-2/+0
| | | | | | | | | | | | | | discrepancy between modules and kernel, but deal with SMP differences within the functions themselves. As an added bonus this also helps in terms of code readability. Requested by: gibbs Reviewed by: jhb, marius MFC after: 1 week Notes: svn path=/head/; revision=234723
* MFi386: revisions 234074 and 234105Yoshihiro Takahashi2012-04-221-0/+7
| | | | | | | - Adding the BSP as an interrupt target directly in cpu_startup(). Notes: svn path=/head/; revision=234564
* Move the legacy(4) driver to x86.John Baldwin2012-03-301-6/+0
| | | | Notes: svn path=/head/; revision=233707
* Remove pty(4) from our kernel configurations.Ed Schouten2012-03-211-1/+0
| | | | | | | | | | | | | | As of FreeBSD 8, this driver should not be used. Applications that use posix_openpt(2) and openpty(3) use the pts(4) that is built into the kernel unconditionally. If it turns out high profile depend on the pty(4) module anyway, I'd rather get those fixed. So please report any issues to me. The pty(4) module is still available as a kernel module of course, so a simple `kldload pty' can be used to run old-style pseudo-terminals. Notes: svn path=/head/; revision=233271
* Copy amd64 sysarch.h to x86 and merge with i386 sysarch.h. ReplaceTijl Coosemans2012-03-191-1/+1
| | | | | | | amd64/i386/pc98 sysarch.h with stubs. Notes: svn path=/head/; revision=233209
* Copy i386 specialreg.h to x86 and merge with amd64 specialreg.h. ReplaceTijl Coosemans2012-03-191-1/+1
| | | | | | | amd64/i386/pc98 specialreg.h with stubs. Notes: svn path=/head/; revision=233207
* Copy i386 psl.h to x86 and replace amd64/i386/pc98 psl.h with stubs.Tijl Coosemans2012-03-191-1/+1
| | | | Notes: svn path=/head/; revision=233204
* Copy i386 reg.h to x86 and merge with amd64 reg.h. Replace i386/amd64/pc98Tijl Coosemans2012-03-181-1/+1
| | | | | | | | | | | | | | | | | | | | reg.h with stubs. The tREGISTER macros are only made visible on i386. These macros are deprecated and should not be available on amd64. The i386 and amd64 versions of struct reg have been renamed to struct __reg32 and struct __reg64. During compilation either __reg32 or __reg64 is defined as reg depending on the machine architecture. On amd64 the i386 struct is also available as struct reg32 which is used in COMPAT_FREEBSD32 code. Most of compat/ia32/ia32_reg.h is now IA64 only. Reviewed by: kib (previous version) Notes: svn path=/head/; revision=233124
* - Fix to build a native i386 kernel without the SMP and atpic.Yoshihiro Takahashi2012-03-161-0/+20
| | | | | | | | | | | | - Merge r232744 changes to pc98. (Allow a kernel to be built with 'nodevice atpic'.) - Move ICU related defines from x86/isa/atpic.c to x86/isa/icu.h and use them in x86/x86/intr_machdep.c. Reviewed by: jhb Notes: svn path=/head/; revision=233031
* Disable the option VFS_ALLOW_NONMPSAFE by default on all the supportedAttilio Rao2012-03-061-3/+0
| | | | | | | | | | | | | | | platforms. This will make every attempt to mount a non-mpsafe filesystem to the kernel forbidden, unless it is expressely compiled with VFS_ALLOW_NONMPSAFE option. This patch is part of the effort of killing non-MPSAFE filesystems from the tree. No MFC is expected for this patch. Notes: svn path=/head/; revision=232619
* Copy amd64 ptrace.h to x86 and merge with i386 ptrace.h. ReplaceTijl Coosemans2012-03-041-1/+1
| | | | | | | | | | | | | amd64/i386/pc98 ptrace.h with stubs. For amd64 PT_GETXSTATE and PT_SETXSTATE have been redefined to match the i386 values. The old values are still supported but should no longer be used. Reviewed by: kib Notes: svn path=/head/; revision=232520
* Copy amd64 trap.h to x86 and replace amd64/i386/pc98 trap.h with stubs.Tijl Coosemans2012-03-041-1/+1
| | | | Notes: svn path=/head/; revision=232492
* Copy amd64 float.h to x86 and merge with i386 float.h. ReplaceTijl Coosemans2012-03-041-1/+1
| | | | | | | amd64/i386/pc98 float.h with stubs. Notes: svn path=/head/; revision=232491
* Copy amd64 stdarg.h to x86 and replace amd64/i386/pc98 stdarg.h with stubs.Tijl Coosemans2012-02-281-1/+1
| | | | Notes: svn path=/head/; revision=232276
* Copy amd64 setjmp.h to x86 and replace amd64/i386/pc98 setjmp.h with stubs.Tijl Coosemans2012-02-281-1/+1
| | | | Notes: svn path=/head/; revision=232275
* Copy amd64 endian.h to x86 and merge with i386 endian.h. ReplaceTijl Coosemans2012-02-281-1/+1
| | | | | | | | | | | | | amd64/i386/pc98 endian.h with stubs. In __bswap64_const(x) the conflict between 0xffUL and 0xffULL has been resolved by reimplementing the macro in terms of __bswap32(x). As a side effect __bswap64_var(x) is now implemented using two bswap instructions on i386 and should be much faster. __bswap32_const(x) has been reimplemented in terms of __bswap16(x) for consistency. Notes: svn path=/head/; revision=232266
* Copy amd64 _stdint.h to x86 and merge with i386 _stdint.h. ReplaceTijl Coosemans2012-02-281-1/+1
| | | | | | | amd64/i386/pc98 _stdint.h with stubs. Notes: svn path=/head/; revision=232264
* Copy amd64 _limits.h to x86 and merge with i386 _limits.h. ReplaceTijl Coosemans2012-02-281-1/+1
| | | | | | | amd64/i386/pc98 _limits.h with stubs. Notes: svn path=/head/; revision=232262
* Copy amd64 _types.h to x86 and merge with i386 _types.h. Replace existingTijl Coosemans2012-02-281-1/+1
| | | | | | | amd64/i386/pc98 _types.h with stubs. Notes: svn path=/head/; revision=232261
* Remove full debugger options and enable KDB_TRACE option instead to decreaseYoshihiro Takahashi2012-02-091-14/+2
| | | | | | | kernel size and increase performance. Notes: svn path=/head/; revision=231276
* - Disable the olpt driver. Because it conflicts with the ppc/lpt driver.Yoshihiro Takahashi2012-02-091-2/+1
| | | | | | | | | - Remove obsolete comment. MFC after: 3 days Notes: svn path=/head/; revision=231273
* Add support for the extended FPU states on amd64, both for nativeKonstantin Belousov2012-01-211-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 64bit and 32bit ABIs. As a side-effect, it enables AVX on capable CPUs. In particular: - Query the CPU support for XSAVE, list of the supported extensions and the required size of FPU save area. The hw.use_xsave tunable is provided for disabling XSAVE, and hw.xsave_mask may be used to select the enabled extensions. - Remove the FPU save area from PCB and dynamically allocate the (run-time sized) user save area on the top of the kernel stack, right above the PCB. Reorganize the thread0 PCB initialization to postpone it after BSP is queried for save area size. - The dumppcb, stoppcbs and susppcbs now do not carry the FPU state as well. FPU state is only useful for suspend, where it is saved in dynamically allocated suspfpusave area. - Use XSAVE and XRSTOR to save/restore FPU state, if supported and enabled. - Define new mcontext_t flag _MC_HASFPXSTATE, indicating that mcontext_t has a valid pointer to out-of-struct extended FPU state. Signal handlers are supplied with stack-allocated fpu state. The sigreturn(2) and setcontext(2) syscall honour the flag, allowing the signal handlers to inspect and manipilate extended state in the interrupted context. - The getcontext(2) never returns extended state, since there is no place in the fixed-sized mcontext_t to place variable-sized save area. And, since mcontext_t is embedded into ucontext_t, makes it impossible to fix in a reasonable way. Instead of extending getcontext(2) syscall, provide a sysarch(2) facility to query extended FPU state. - Add ptrace(2) support for getting and setting extended state; while there, implement missed PT_I386_{GET,SET}XMMREGS for 32bit binaries. - Change fpu_kern KPI to not expose struct fpu_kern_ctx layout to consumers, making it opaque. Internally, struct fpu_kern_ctx now contains a space for the extended state. Convert in-kernel consumers of fpu_kern KPI both on i386 and amd64. First version of the support for AVX was submitted by Tim Bird <tim.bird am sony com> on behalf of Sony. This version was written from scratch. Tested by: pho (previous version), Yamagi Burmeister <lists yamagi org> MFC after: 1 month Notes: svn path=/head/; revision=230426
* Flip these options on so the modules build correctly for now.Adrian Chadd2012-01-061-2/+2
| | | | Notes: svn path=/head/; revision=229691
* Add "options CAPABILITY_MODE" and "options CAPABILITIES" to GENERIC kernelRobert Watson2011-12-291-0/+2
| | | | | | | | | | | | | configurations for various architectures in FreeBSD 10.x. This allows basic Capsicum functionality to be used in the default FreeBSD configuration on non-embedded architectures; process descriptors are not yet enabled by default. MFC after: 3 months Sponsored by: Google, Inc Notes: svn path=/head/; revision=228973
* kern cons: introduce infrastructure for console grabbing by kernelAndriy Gapon2011-12-171-0/+12
| | | | | | | | | | | | | | | At the moment grab and ungrab methods of all console drivers are no-ops. Current intended meaning of the calls is that the kernel takes control of console input. In the future the semantics may be extended to mean that the calling thread takes full ownership of the console (e.g. console output from other threads could be suspended). Inspired by: bde MFC after: 2 months Notes: svn path=/head/; revision=228631
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