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* Copy releng/8.2 to release/8.2.0 for 8.2-RELEASE.release/8.2.0_cvsKen Smith2011-02-1696-96/+96
| | | | | | Approved by: re (implicit) This commit was manufactured to restore the state of the 8.2-RELEASE image.
* MFC 211149,211151,211197,211518,215128:John Baldwin2010-11-112-11/+10
| | | | | | | | | Update various places that store or manipulate CPU masks to use cpumask_t instead of int or u_int. Since cpumask_t is currently u_int on all platforms this should just be a cosmetic change. Notes: svn path=/stable/8/; revision=215141
* MFC 210939:John Baldwin2010-11-091-1/+2
| | | | | | | | | Add a new ipi_cpu() function to the MI IPI API that can be used to send an IPI to a specific CPU by its cpuid. Replace calls to ipi_selected() that constructed a mask for a single CPU with calls to ipi_cpu() instead. Notes: svn path=/stable/8/; revision=215050
* MFC r208453:Konstantin Belousov2010-11-031-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reorganize syscall entry and leave handling. Implement ptrace_lwpinfo pl_flags PL_FLAG_SCE, PL_FLAG_SCX and PL_FLAG_EXEC. The i386, amd64, sparc64, sun4v, powerpc and ia64 syscall()s are changed to use syscallenter()/syscallret(). MIPS and arm are not converted and use the mostly unchanged syscall() implementation. MFC r208514: Change ia64' struct syscall_args definition so that args is a pointer to the arguments array instead of array itself. MFC r208566: Allow to use syscallname(9) outside subr_trap.c. MFC r209258 (by rpaulo): Make DTrace syscall provider work again by including opt_kdtrace.h here. MFC r209313: Only enable kdtrace hook in the LINT on the architectures that implement it. MFC r209697: Obey sv_syscallnames bounds in syscallname(). NOTE: The KBI of the struct sysentvec is changed, new required members sv_set_syscall_retval, sv_fetch_syscall_args and sv_syscallnames are added. The sv_prepsyscall field is now ignored. Third-party modules using the struct sysentvec must be modified and recompiled, we believe that only ABI emulators are affected. No such out-of-tree modules are known. In-tree modules that are affected by the change were converted to depend on exact version of the kernel, see r214421. Notes: svn path=/stable/8/; revision=214755
* MFC: r213575Marius Strobl2010-10-171-117/+2
| | | | | | | Just use the sparc64 version of this header rather than duplicating it. Notes: svn path=/stable/8/; revision=213972
* MFC: r204646Marius Strobl2010-10-171-7/+0
| | | | | | | | | | The NetBSD Foundation has granted permission to remove clause 3 and 4 from the software. Obtained from: NetBSD Notes: svn path=/stable/8/; revision=213956
* MFC: r210176Marius Strobl2010-09-151-1/+0
| | | | | | | | | Allocate proper amount of memory for interrupt names on sparc64 and sun4v, same as done on other architectures. This removes garbage from `vmstat -ia` output. Notes: svn path=/stable/8/; revision=212684
* MFC: r207243Marius Strobl2010-05-101-0/+1
| | | | | | | | | Add OF_getscsinitid(), a helper similar to OF_getetheraddr() but for obtaining the initiator ID to be used for SPI controllers from the Open Firmware device tree. Notes: svn path=/stable/8/; revision=207863
* MFC r204051 (by imp):Konstantin Belousov2010-05-081-0/+2
| | | | | | | | | | | | | | | | | | n64 has a different size for KINFO_PROC_SIZE. Approved by: imp MFC r207152: Move the constants specifying the size of struct kinfo_proc into machine-specific header files. Add KINFO_PROC32_SIZE for struct kinfo_proc32 for architectures providing COMPAT_FREEBSD32. Add CTASSERT for the size of struct kinfo_proc32. MFC r207269: Style: use #define<TAB> instead of #define<SPACE>. Notes: svn path=/stable/8/; revision=207793
* MFC: r203829Marius Strobl2010-03-304-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Assert that HEAPSZ is a multiple of PAGE_SIZE as at least the firmware of Sun Fire V1280 doesn't round up the size itself but instead lets claiming of non page-sized amounts of memory fail. - Change parameters and variables related to the TLB slots to unsigned which is more appropriate. - Search the whole OFW device tree instead of only the children of the root nexus device for the BSP as starting with UltraSPARC IV the 'cpu' nodes hang off of from 'cmp' (chip multi-threading processor) or 'core' or combinations thereof. Also in large UltraSPARC III based machines the 'cpu' nodes hang off of 'ssm' (scalable shared memory) nodes which group snooping-coherency domains together instead of directly from the nexus. - Add support for UltraSPARC IV and IV+ BSPs. Due to the fact that these are multi-core each CPU has two Fireplane config registers and thus the module/target ID has to be determined differently so the one specific to a certain core is used. Similarly, starting with UltraSPARC IV the individual cores use a different property in the OFW device tree to indicate the CPU/core ID as it no longer is in coincidence with the shared slot/socket ID. While at it additionally distinguish between CPUs with Fireplane and JBus interconnects as these also use slightly different sizes for the JBus/agent/module/target IDs. - Check the return value of init_heap(). This requires moving it after cons_probe() so we can panic when appropriate. This should be fine as the PowerPC OFW loader uses that order for quite some time now. Notes: svn path=/stable/8/; revision=205920
* MFC: r203341Marius Strobl2010-03-301-81/+90
| | | | | | | | | | | - Remove the BUS_HANDLE_MIN checking in the __BUS_DEBUG_ACCESS macro; for UPA it should have fulfilled its purpose by now and Fireplane- and JBus-based machines are way to messy in organization to implement something equivalent. - Fix a bunch of style(9) bugs. Notes: svn path=/stable/8/; revision=205913
* MFC: r203335Marius Strobl2010-03-301-2/+2
| | | | | | | | | - Const'ify the bus_stream_asi and bus_type_asi arrays. - Replace hard-coded functions names missed in bus_machdep.c with __func__. - Break some long lines. Notes: svn path=/stable/8/; revision=205911
* MFC: r203334Marius Strobl2010-03-301-4/+4
| | | | | | | | Sync with the other archs and declare the memory location referenced by the address argument of the bus_space_write_multi_*() familiy as const. Notes: svn path=/stable/8/; revision=205910
* MFC r197316Alan Cox2009-10-311-0/+2
| | | | | | | Add a new sysctl for reporting all of the supported page sizes. Notes: svn path=/stable/8/; revision=198728
* MFC r197933:Konstantin Belousov2009-10-201-0/+2
| | | | | | | | | | | | Define architectural load bases for PIE binaries. MFC r198203 (by marius): Change load base for sparc to match default gcc memory layout model. Approved by: re (kensmith) Notes: svn path=/stable/8/; revision=198283
* MFC r196196:Attilio Rao2009-08-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Completely remove the option STOP_NMI from the kernel. This option has proven to have a good effect when entering KDB by using a NMI, but it completely violates all the good rules about interrupts disabled while holding a spinlock in other occasions. This can be the cause of deadlocks on events where a normal IPI_STOP is expected. * Add an new IPI called IPI_STOP_HARD on all the supported architectures. This IPI is responsible for sending a stop message among CPUs using a privileged channel when disponible. In other cases it just does match a normal IPI_STOP. Right now the IPI_STOP_HARD functionality uses a NMI on ia32 and amd64 architectures, while on the other has a normal IPI_STOP effect. It is responsibility of maintainers to eventually implement an hard stop when necessary and possible. * Use the new IPI facility in order to implement a new userend SMP kernel function called stop_cpus_hard(). That is specular to stop_cpu() but it does use the privileged channel for the stopping facility. * Let KDB use the newly introduced function stop_cpus_hard() and leave stop_cpus() for all the other cases * Disable interrupts on CPU0 when starting the process of APs suspension. * Style cleanup and comments adding This patch should fix the reboot/shutdown deadlocks many users are constantly reporting on mailing lists. Please don't forget to update your config file with the STOP_NMI option removal Reviewed by: jhb Tested by: pho, bz, rink Approved by: re (kib) Notes: svn path=/stable/8/; revision=196198
* Add support to the virtual memory system for configuring machine-Alan Cox2009-07-122-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dependent memory attributes: Rename vm_cache_mode_t to vm_memattr_t. The new name reflects the fact that there are machine-dependent memory attributes that have nothing to do with controlling the cache's behavior. Introduce vm_object_set_memattr() for setting the default memory attributes that will be given to an object's pages. Introduce and use pmap_page_{get,set}_memattr() for getting and setting a page's machine-dependent memory attributes. Add full support for these functions on amd64 and i386 and stubs for them on the other architectures. The function pmap_page_set_memattr() is also responsible for any other machine-dependent aspects of changing a page's memory attributes, such as flushing the cache or updating the direct map. The uses include kmem_alloc_contig(), vm_page_alloc(), and the device pager: kmem_alloc_contig() can now be used to allocate kernel memory with non-default memory attributes on amd64 and i386. vm_page_alloc() and the device pager will set the memory attributes for the real or fictitious page according to the object's default memory attributes. Update the various pmap functions on amd64 and i386 that map pages to incorporate each page's memory attributes in the mapping. Notes: (1) Inherent to this design are safety features that prevent the specification of inconsistent memory attributes by different mappings on amd64 and i386. In addition, the device pager provides a warning when a device driver creates a fictitious page with memory attributes that are inconsistent with the real page that the fictitious page is an alias for. (2) Storing the machine-dependent memory attributes for amd64 and i386 as a dedicated "int" in "struct md_page" represents a compromise between space efficiency and the ease of MFCing these changes to RELENG_7. In collaboration with: jhb Approved by: re (kib) Notes: svn path=/head/; revision=195649
* Cleanup ALIGNED_POINTER:Sam Leffler2009-07-051-0/+7
| | | | | | | | | | | | | | o add to platforms where it was missing (arm, i386, powerpc, sparc64, sun4v) o define as "1" on amd64 and i386 where there is no restriction o make the type returned consistent with ALIGN o remove _ALIGNED_POINTER o make associated comments consistent Reviewed by: bde, imp, marcel Approved by: re (kensmith) Notes: svn path=/head/; revision=195376
* Correct the #endif comment.Alan Cox2009-06-261-1/+1
| | | | | | | | Noticed by: jmallett Approved by: re (kib) Notes: svn path=/head/; revision=195060
* This change is the next step in implementing the cache control functionalityAlan Cox2009-06-261-0/+35
| | | | | | | | | | | | | | required by video card drivers. Specifically, this change introduces vm_cache_mode_t with an appropriate VM_CACHE_DEFAULT definition on all architectures. In addition, this changes adds a vm_cache_mode_t parameter to kmem_alloc_contig() and vm_phys_alloc_contig(). These will be the interfaces for allocating mapped kernel memory and physical memory, respectively, with non-default cache modes. In collaboration with: jhb Notes: svn path=/head/; revision=195033
* Implement a facility for dynamic per-cpu variables.Jeff Roberson2009-06-231-0/+2
| | | | | | | | | | | | | | | | | | - Modules and kernel code alike may use DPCPU_DEFINE(), DPCPU_GET(), DPCPU_SET(), etc. akin to the statically defined PCPU_*. Requires only one extra instruction more than PCPU_* and is virtually the same as __thread for builtin and much faster for shared objects. DPCPU variables can be initialized when defined. - Modules are supported by relocating the module's per-cpu linker set over space reserved in the kernel. Modules may fail to load if there is insufficient space available. - Track space available for modules with a one-off extent allocator. Free may block for memory to allocate space for an extent. Reviewed by: jhb, rwatson, kan, sam, grehan, marius, marcel, stas Notes: svn path=/head/; revision=194784
* Adjust the padding of struct pcpu to r193219.Marius Strobl2009-06-031-2/+2
| | | | | | | Submitted by: Eygene Ryabinkin Notes: svn path=/head/; revision=193392
* Don't conditionally define CACHE_LINE_SHIFT, as we anticipate sizingRobert Watson2009-04-201-3/+1
| | | | | | | | | | | | | | | a fair number of static data structures, making this an unlikely option to try to change without also changing source code. [1] Change default cache line size on ia64, sparc64, and sun4v to 128 bytes, as this was what rtld-elf was already using on those platforms. [2] Suggested by: bde [1], jhb [2] MFC after: 2 weeks Notes: svn path=/head/; revision=191309
* Add description and cautionary note regarding CACHE_LINE_SIZE.Robert Watson2009-04-191-0/+4
| | | | | | | | MFC after: 2 weeks Suggested by: alc Notes: svn path=/head/; revision=191278
* For each architecture, define CACHE_LINE_SHIFT and a derivedRobert Watson2009-04-191-0/+5
| | | | | | | | | | | | | | | | CACHE_LINE_SIZE constant. These constants are intended to over-estimate the cache line size, and be used at compile-time when a run-time tuning alternative isn't appropriate or available. Defaults for all architectures are 64 bytes, except powerpc where it is 128 bytes (used on G5 systems). MFC after: 2 weeks Discussed on: arch@ Notes: svn path=/head/; revision=191276
* - There's no need to wrap kdb_active and kdb_trap() in #ifdef KDB asMarius Strobl2009-03-191-1/+1
| | | | | | | | | | | | they're always available. - Remove unused variable. [1] - Add a missing const. - Sort includes. Submitted by: Christoph Mallon [1] Notes: svn path=/head/; revision=190107
* Add AT_EXECPATH ELF auxinfo entry type. The value's a_ptr is a pointerKonstantin Belousov2009-03-171-4/+2
| | | | | | | | | | | | | to the full path of the image that is being executed. Increase AT_COUNT. Remove no longer true comment about types used in Linux ELF binaries, listed types contain FreeBSD-specific entries. Reviewed by: kan Notes: svn path=/head/; revision=189926
* - Use the generally more appropriate PROM base rather than theMarius Strobl2009-02-111-1/+1
| | | | | | | | | | | | | | kernel one as the non-faulting flush address in the loader so we can can change KERNBASE and VM_MIN_KERNEL_ADDRESS if we ever want to without needing to worry about using a compatible loader. - Correctly check for LOADER_DEBUG. - Add a missing const for page_sizes[]. This file was missed in r188455. Notes: svn path=/head/; revision=188477
* Adjust the padding of struct pcpu to r187357.Marius Strobl2009-01-181-1/+7
| | | | Notes: svn path=/head/; revision=187394
* Missed the sun4v update to ofw_machdep.h in the OFW modularization commit.Nathan Whitehorn2008-12-201-1/+6
| | | | Notes: svn path=/head/; revision=186355
* AT_DEBUG and AT_BRK were OBE like 10 years ago, so retire them.Warner Losh2008-12-171-12/+0
| | | | | | | Reviewed by: peter Notes: svn path=/head/; revision=186212
* Adapt parts of the sparc64 Open Firmware bus enumeration code (in particular,Nathan Whitehorn2008-12-151-53/+0
| | | | | | | | | | | | | | | | | | the code for parsing interrupt maps) to PowerPC and reflect their new MI status by moving them to the shared dev/ofw directory. This commit also modifies the OFW PCI enumeration procedure on PowerPC to allow the bus to find non-firmware-enumerated devices that Apple likes to add, and adds some useful Open Firmware properties (compat and name) to the pnpinfo string of children on OFW SBus, EBus, PCI, and MacIO links. Because of the change to PCI enumeration on PowerPC, X has started working again on PPC machines with Grackle hostbridges. Reviewed by: marius Obtained from: sparc64 Notes: svn path=/head/; revision=186128
* - bump __FreeBSD version to reflect added buf_ring, memory barriers,Kip Macy2008-11-221-0/+4
| | | | | | | | | | | | | | | | | | | | and ifnet functions - add memory barriers to <machine/atomic.h> - update drivers to only conditionally define their own - add lockless producer / consumer ring buffer - remove ring buffer implementation from cxgb and update its callers - add if_transmit(struct ifnet *ifp, struct mbuf *m) to ifnet to allow drivers to efficiently manage multiple hardware queues (i.e. not serialize all packets through one ifq) - expose if_qflush to allow drivers to flush any driver managed queues This work was supported by Bitgravity Inc. and Chelsio Inc. Notes: svn path=/head/; revision=185162
* Remove ipi_all() and ipi_self() as the former hasn't been used atMarius Strobl2008-09-281-1/+0
| | | | | | | | | | | | | | all to date and the latter also is only used in ia64 and powerpc code which no longer serves a real purpose after bring-up and just can be removed as well. Note that architectures like sun4u also provide no means of implementing IPI'ing a CPU itself natively in the first place. Suggested by: jhb Reviewed by: arch, grehan, jhb Notes: svn path=/head/; revision=183439
* Work around Cheetah+ erratum 34 (USIII+ erratum #10) by relocatingMarius Strobl2008-09-101-0/+1
| | | | | | | | | | | the locked entry in it16 slot 0, which typically is occupied by the PROM, and manually entering locked entries in slots != 0. Thanks to Hubert Feyrer for donating the Blade 2000 this change was developed on. Notes: svn path=/head/; revision=182916
* Export 'struct pcpu' to userland w/o requiring _KERNEL. A few portsJohn Baldwin2008-08-191-2/+3
| | | | | | | | | | already define _KERNEL to get to this and I'm about to add hooks to libkvm to access per-CPU data. MFC after: 1 week Notes: svn path=/head/; revision=181875
* - Reimplement {d,i}tlb_enter() and {d,i}tlb_va_to_pa() in C. There'sMarius Strobl2008-08-071-0/+4
| | | | | | | | | | | | | | | | | | no particular reason for them to be implemented in assembler and having them in C allows easier extension as well as using more C macros and {d,i}tlb_slot_max rather than hard-coding magic (and actually spitfire-only) values. - Fix the compilation of pmap_print_tte(). - Change pmap_print_tlb() to use ldxa() rather than re-rolling it inline as well as TLB_DAR_SLOT and {d,i}tlb_slot_max rather than hardcoding magic (and actually spitfire-only) values. - While at it, suffix the above mentioned functions with "_sun4u" to underline they're architecture-specific. - Use __FBSDID and macros instead of magic values in locore.S. - Remove unused includes and smp_stack in locore.S. Notes: svn path=/head/; revision=181398
* Given that sun4u uses sparc64/sparc64/in_cksum.c, use the sparc64Marius Strobl2008-06-251-164/+2
| | | | | | | | | <machine/in_cksum.h> here also. MFC after: 3 days Notes: svn path=/head/; revision=180010
* Remove the unused major/minor numbers from iodev and memdev.Ed Schouten2008-06-251-1/+0
| | | | | | | | | | | | Now that st_rdev is being automatically generated by the kernel, there is no need to define static major/minor numbers for the iodev and memdev. We still need the minor numbers for the memdev, however, to distinguish between /dev/mem and /dev/kmem. Approved by: philip (mentor) Notes: svn path=/head/; revision=179990
* Remove an header which is unused for sun4v.Marius Strobl2008-05-021-65/+0
| | | | | | | MFC after: 3 days Notes: svn path=/head/; revision=178728
* When building a kernel module, define MAXCPU the same as SMP soJohn Birrell2008-03-271-2/+2
| | | | | | | that modules work with and without SMP. Notes: svn path=/head/; revision=177661
* Remove two variables which are handled MI now.Poul-Henning Kamp2008-03-261-3/+0
| | | | Notes: svn path=/head/; revision=177644
* The "free-lance" timer in the i8254 is only used for the speakerPoul-Henning Kamp2008-03-261-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | these days, so de-generalize the acquire_timer/release_timer api to just deal with speakers. The new (optional) MD functions are: timer_spkr_acquire() timer_spkr_release() and timer_spkr_setfreq() the last of which configures the timer to generate a tone of a given frequency, in Hz instead of 1/1193182th of seconds. Drop entirely timer2 on pc98, it is not used anywhere at all. Move sysbeep() to kern/tty_cons.c and use the timer_spkr*() if they exist, and do nothing otherwise. Remove prototypes and empty acquire-/release-timer() and sysbeep() functions from the non-beeping archs. This eliminate the need for the speaker driver to know about i8254frequency at all. In theory this makes the speaker driver MI, contingent on the timer_spkr_*() functions existing but the driver does not know this yet and still attaches to the ISA bus. Syscons is more tricky, in one function, sc_tone(), it knows the hz and things are just fine. In the other function, sc_bell() it seems to get the period from the KDMKTONE ioctl in terms if 1/1193182th second, so we hardcode the 1193182 and leave it at that. It's probably not important. Change a few other sysbeep() uses which obviously knew that the argument was in terms of i8254 frequency, and leave alone those that look like people thought sysbeep() took frequency in hertz. This eliminates the knowledge of i8254_freq from all but the actual clock.c code and the prof_machdep.c on amd64 and i386, where I think it would be smart to ask for help from the timecounters anyway [TBD]. Notes: svn path=/head/; revision=177642
* Remove old sysctl stuff which is long gone in other arch's.Poul-Henning Kamp2008-03-261-21/+0
| | | | Notes: svn path=/head/; revision=177627
* Oops. Use atomic_add_long() for atomic_fetchadd_long() (not atomic_add_int())Pawel Jakub Dawidek2008-03-191-2/+1
| | | | | | | | | for sparc64 and sun4v. Noticed by: marius Notes: svn path=/head/; revision=177373
* Implement atomic_fetchadd_long() for all architectures and document it.Pawel Jakub Dawidek2008-03-161-0/+2
| | | | | | | Reviewed by: attilio, jhb, jeff, kris (as a part of the uidinfo_waitfree.patch) Notes: svn path=/head/; revision=177276
* Add configuration knobs for the superpage reservation system. Initially,Alan Cox2007-12-271-0/+7
| | | | | | | the reservation will only be enabled on amd64. Notes: svn path=/head/; revision=174938
* Add stubs to unbreak LINT.Joseph Koshy2007-12-071-0/+4
| | | | Notes: svn path=/head/; revision=174405
* Break out stack(9) from ddb(4):Robert Watson2007-12-021-0/+35
| | | | | | | | | | | | | | | | | | | | | | | - Introduce per-architecture stack_machdep.c to hold stack_save(9). - Introduce per-architecture machine/stack.h to capture any common definitions required between db_trace.c and stack_machdep.c. - Add new kernel option "options STACK"; we will build in stack(9) if it is defined, or also if "options DDB" is defined to provide compatibility with existing users of stack(9). Add new stack_save_td(9) function, which allows the capture of a stacktrace of another thread rather than the current thread, which the existing stack_save(9) was limited to. It requires that the thread be neither swapped out nor running, which is the responsibility of the consumer to enforce. Update stack(9) man page. Build tested: amd64, arm, i386, ia64, powerpc, sparc64, sun4v Runtime tested: amd64 (rwatson), arm (cognet), i386 (rwatson) Notes: svn path=/head/; revision=174195
* Adjust the padding to account for the change of size of the MI partJohn Birrell2007-11-291-1/+1
| | | | | | | of struct pcpu. Notes: svn path=/head/; revision=174090
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