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* Fix a bug where MSI interrupts on x86 were always routed to APIC ID 0 ratherJohn Baldwin2010-02-171-0/+2
| | | | | | | | | | | | than the APIC ID of the boot CPU prior to SI_SUB_SMP. This resulted in some storage controllers not being able to enumerate attached devices when using MSI/MSI-X interrupts. This only affects <= 7.x, so it is a direct commit to 7.3 rather than an MFC. Approved by: re (kib) Notes: svn path=/releng/7.3/; revision=204013
* MFC r202894Alan Cox2010-01-302-4/+44
| | | | | | | | | Handle a race between pmap_kextract() and pmap_promote_pde(). Approved by: re (kib) Notes: svn path=/stable/7/; revision=203208
* MFC 195820, 195940, 196643, 197663, 199067, 199215, and 199253:John Baldwin2010-01-267-18/+163
| | | | | | | | | | | | | | | | | | | Optimize the cache flushing done when changing caching attributes of pages by doing nothing for CPUs that support self-snooping and using CLFLUSH instead of a full cache invalidate when possible. - On i386 take care of possible mappings of the page by sf buffer by utilizing the mapping for clflush, otherwise map the page transiently. Amd64 uses the direct map. - Do not use CLFLUSH on Intel CPUs due to problems with flushing the local APIC range by default. This can be further controlled via the hw.clflush_disable loader tunable. A setting of 1 disables the use of CLFLUSH. A setting of 0 allows CLFLUSH to be used for Intel CPUs when CPUID_SS is not present. Approved by: re (kib) Notes: svn path=/stable/7/; revision=203047
* MFC 189698,192035:John Baldwin2010-01-221-2/+4
| | | | | | | | | | | | | | | | | | | | | Optimize the inner loop of pmap_copy(). Correct a rare use-after-free error in pmap_copy(). This error was introduced in amd64 revision 1.540 and i386 revision 1.547. However, it had no harmful effects until after a recent change, r189698, on amd64. (In other words, the error is harmless in RELENG_7.) The error is triggered by the failure to allocate a pv entry for the one and only mapping in a page table page. I am addressing the error by changing pmap_copy() to abort if either pv entry allocation or page table page allocation fails. This is appropriate because the creation of mappings by pmap_copy() is optional. They are a (possible) optimization, and not a requirement. Correct a nearby whitespace error in the i386 pmap_copy(). Notes: svn path=/stable/7/; revision=202837
* MFC 193951:John Baldwin2010-01-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | Adapt vfs kqfilter to the shared vnode lock used by zfs write vop. Use vnode interlock to protect the knote fields. The locking assumes that shared vnode lock is held, thus we get exclusive access to knote either by exclusive vnode lock protection, or by shared vnode lock + vnode interlock. Unlike the change in HEAD, this does not remove kl_locked() and replace it with kl_assert_locked() and kl_assert_unlocked(). Instead, the kl_locked can now be set to NULL in which case no assertion checks are performed on the lock. The vfs kqfilter code uses this mode to disable assertion checks. This preserves the existing ABI for knlist_init(). Add convenience function knlist_init_mtx to reduce number of arguments for typical knlist initialization. Reviewed by: kib Notes: svn path=/stable/7/; revision=202814
* MFC 198134,198149,198170,198171,198391,200948:John Baldwin2010-01-213-0/+30
| | | | | | | | | | | | | | | | | | | | | | | | | Add a facility for associating optional descriptions with active interrupt handlers. This is primarily intended as a way to allow devices that use multiple interrupts (e.g. MSI) to meaningfully distinguish the various interrupt handlers. - Add a new BUS_DESCRIBE_INTR() method to the bus interface to associate a description with an active interrupt handler setup by BUS_SETUP_INTR. It has a default method (bus_generic_describe_intr()) which simply passes the request up to the parent device. - Add a bus_describe_intr() wrapper around BUS_DESCRIBE_INTR() that supports printf(9) style formatting using var args. - Reserve MAXCOMLEN bytes in the intr_handler structure to hold the name of an interrupt handler and copy the name passed to intr_event_add_handler() into that buffer instead of just saving the pointer to the name. - Add a new intr_event_describe_handler() which appends a description string to an interrupt handler's name. - Implement support for interrupt descriptions on amd64, i386, and sparc64 by having the nexus(4) driver supply a custom bus_describe_intr method that invokes a new intr_describe() MD routine which in turn looks up the associated interrupt event and invokes intr_event_describe_handler(). Notes: svn path=/stable/7/; revision=202763
* MFC r197933:Konstantin Belousov2010-01-191-0/+2
| | | | | | | | | | Define architectural load bases for PIE binaries. MFC r198203: Change the load base to below 2GB for sparc64/sun4v. Notes: svn path=/stable/7/; revision=202642
* MFC r202085Alan Cox2010-01-182-5/+4
| | | | | | | | Simplify pmap_init(). Additionally, correct a harmless misbehavior on i386. Notes: svn path=/stable/7/; revision=202599
* MFC 202019:Warner Losh2010-01-181-0/+1
| | | | | | | | Add INCLUDE_CONFIG_FILE in GENERIC on all non-embedded platforms. # This is the resolution of removing it from DEFAULTS... Notes: svn path=/stable/7/; revision=202547
* MFC r201443:Brooks Davis2010-01-121-0/+1
| | | | | | | Add vlan(4) to all GENERIC kernels. Notes: svn path=/stable/7/; revision=202135
* Revert 201164. Truly optional items like this do not belong on DEFAULTS.Warner Losh2010-01-041-7/+0
| | | | Notes: svn path=/stable/7/; revision=201536
* MFC r200594:Doug Barton2009-12-291-0/+7
| | | | | | | | Add INCLUDE_CONFIG_FILE, and a note in comments about how to also include the comments with CONFIGARGS Notes: svn path=/stable/7/; revision=201164
* MFC r189926:Konstantin Belousov2009-12-221-4/+2
| | | | | | | Add AT_EXECPATH ELF auxinfo entry type. Notes: svn path=/stable/7/; revision=200861
* MFC r186212 (by imp):Konstantin Belousov2009-12-221-12/+0
| | | | | | | | | | AT_DEBUG and AT_BRK were OBE like 10 years ago, so retire them. MFC r186225: Remove two remnant uses of AT_DEBUG. Notes: svn path=/stable/7/; revision=200858
* MFC 200514:John Baldwin2009-12-221-3/+0
| | | | | | | Remove comment claiming that building acpi into the kernel is deprecated. Notes: svn path=/stable/7/; revision=200842
* MFC r190501,190521,192029: Add support for Phenom (Family 10h) to cpufreq.Andriy Gapon2009-12-211-0/+506
| | | | | | | This also has changes from r197070 (earlier partial MFC). Notes: svn path=/stable/7/; revision=200773
* MFC r199969: amdsbwd: new driver for AMD SB600/SB7xx watchdog timerAndriy Gapon2009-12-211-0/+2
| | | | Notes: svn path=/stable/7/; revision=200766
* MFC r197070: Consolidate CPUID to CPU family/model macros for amd64 and i386Andriy Gapon2009-12-203-11/+11
| | | | | | | | | | | | This is to fix breakage caused by r200064. I do this MFC instead of just fixing r200064 to reduce difference from head and make things easier for future MFCs. Original change is by jkim. Pointy hat to: avg Notes: svn path=/stable/7/; revision=200742
* MFC r200064: mca: small enhancements related to cpu quirksAndriy Gapon2009-12-191-8/+22
| | | | Notes: svn path=/stable/7/; revision=200714
* MFC r200033: mca: improve status checking, recording and reportingAndriy Gapon2009-12-192-49/+63
| | | | Notes: svn path=/stable/7/; revision=200712
* MFC: r195376Marius Strobl2009-12-171-0/+7
| | | | | | | | | | | | | | | Cleanup ALIGNED_POINTER: 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: sam (MFC to stable/7) Notes: svn path=/stable/7/; revision=200625
* MFC r197518:Bjoern A. Zeeb2009-12-131-0/+3
| | | | | | | | | | | | | | | | | | | | | | lindev(4) [1] is supposed to be a collection of linux-specific pseudo devices that we also support, just not by default (thus only LINT or module builds by default). While currently there is only "/dev/full" [2], we are planning to see more in the future. We may decide to change the module/dependency logic in the future should the list grow too long. This is not part of linux.ko as also non-linux binaries like kFreeBSD userland or ports can make use of this as well. Suggested by: rwatson [1] (name) Submitted by: ed [2] Discussed with: markm, ed, rwatson, kib (weeks ago) Reviewed by: rwatson, brueffer (prev. version) PR: kern/68961 Notes: svn path=/stable/7/; revision=200479
* MFC: fix alignment calculation for situations where alignment needs to beScott Long2009-12-091-2/+2
| | | | | | | exactly on page boundary or less. Notes: svn path=/stable/7/; revision=200289
* MFC r199968: x86 cpu features: add MOVBE reporting and flagAndriy Gapon2009-12-082-1/+2
| | | | Notes: svn path=/stable/7/; revision=200263
* MFC r199184: reflect that pg_ps_enabled is a tunableAndriy Gapon2009-12-081-1/+1
| | | | Notes: svn path=/stable/7/; revision=200261
* MFC r179785, r180496:Bjoern A. Zeeb2009-11-292-64/+0
| | | | | | | | | | Remove obselete PECOFF image activator support. Discussed with: secteam, kib Approved by: re (kensmith) Notes: svn path=/stable/7/; revision=199901
* MFC: revision 199219Yoshihiro Takahashi2009-11-191-1/+1
| | | | | | | | Fix cpu model for PODP5V83. It is P24T, not P54T. Also remove redundant 'Overdrive' word. Notes: svn path=/stable/7/; revision=199520
* MFC 198043:John Baldwin2009-11-171-2/+3
| | | | | | | | Move the USB wireless drivers down into their own section next to the USB ethernet drivers. Notes: svn path=/stable/7/; revision=199397
* MFC r198868, r198950:Attilio Rao2009-11-061-0/+15
| | | | | | | | | Opteron rev E family of processor expose a bug where acq memory barriers can be broken, resulting in random breakages. Printout a warning message if affected family and model are found. Notes: svn path=/stable/7/; revision=198979
* MFC 198554:John Baldwin2009-11-041-34/+31
| | | | | | | | | | | | | Fix some problems with effective mmap() offsets > 32 bits. This was partially fixed on amd64 earlier. Rather than forcing linux_mmap_common() to use a 32-bit offset, have it accept a 64-bit file offset. This offset is then passed to the real mmap() call. Rather than inventing a structure to hold the normal linux_mmap args that has a 64-bit offset, just pass each of the arguments individually to linux_mmap_common() since that more closes matches the existing style of various kern_foo() functions. Notes: svn path=/stable/7/; revision=198926
* MFC 197450: number of cleanups in i386 and amd64 pci md codeAndriy Gapon2009-11-011-7/+7
| | | | Notes: svn path=/stable/7/; revision=198770
* MFC 198271: add amdtemp to i386 NOTESAndriy Gapon2009-11-011-0/+2
| | | | Notes: svn path=/stable/7/; revision=198762
* MFC r197317Alan Cox2009-11-011-0/+5
| | | | | | | | When superpages are enabled, add the 2 or 4MB page size to the array of supported page sizes. Notes: svn path=/stable/7/; revision=198743
* MFC r197316Alan Cox2009-11-011-0/+2
| | | | | | | Add a new sysctl for reporting all of the supported page sizes. Notes: svn path=/stable/7/; revision=198742
* MFC 197439:John Baldwin2009-10-293-221/+254
| | | | | | | | | | | | | Extract the code to find and map the MADT ACPI table during early kernel startup and genericize it so it can be reused to map other tables as well: - Add a routine to walk a list of ACPI subtables such as those used in the APIC and SRAT tables in the MI acpi(4) driver. - Move the routines for mapping and unmapping an ACPI table as well as mapping the RSDT or XSDT and searching for a table with a given signature out into acpica_machdep.c for both amd64 and i386. Notes: svn path=/stable/7/; revision=198618
* MFC 192050, 192343, 192440:John Baldwin2009-10-296-0/+617
| | | | | | | | Implement simple machine check support for amd64 and i386. It is disabled by default but can be enabled via the 'hw.mca.enabled' tunable. Notes: svn path=/stable/7/; revision=198589
* MFC r197803, r197824, r197910:Attilio Rao2009-10-121-41/+57
| | | | | | | | | | | | | | Per their definition, atomic instructions used in conjuction with memory barriers should also ensure that the compiler doesn't reorder paths where they are used. GCC, however, does that aggressively, even in presence of volatile operands. The most reliable way GCC offers for avoid instructions reordering is clobbering "memory". Not all our memory barriers, right now, clobber memory for GCC-like compilers. Fix these cases. Notes: svn path=/stable/7/; revision=197986
* MFC 197410:John Baldwin2009-09-251-6/+34
| | | | | | | | | | | - Split the logic to parse an SMAP entry out into a separate function on amd64 similar to i386. This fixes a bug on amd64 where overlapping entries would not cause the SMAP parsing to stop. - Change the SMAP parsing code to do a sorted insertion into physmap[] instead of an append to support systems with out-of-order SMAP entries. Notes: svn path=/stable/7/; revision=197485
* MFC 195840, 195844, and 196637:John Baldwin2009-09-141-2/+3
| | | | | | | | | | | Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to a device pager (OBJT_DEVICE) object in that it uses fictitious pages to provide aliases to other memory addresses. The primary difference is that it uses an sglist(9) to determine the physical addresses for a given offset into the object instead of invoking the d_mmap() method in a device driver. Notes: svn path=/stable/7/; revision=197197
* MFC r196653:Bjoern A. Zeeb2009-09-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Make sure FreeBSD binaries without .note.ABI-tag section work correctly and do not match a colliding Debian GNU/kFreeBSD brandinfo statements. For this mark the Debian GNU/kFreeBSD brandinfo that it must have an .note.ABI-tag section and ignore the old EI_OSABI brandinfo when comparing a possibly colliding set of options. Due to SYSINIT we add the brandinfo in a non-deterministic order, so native FreeBSD is not always first. We may want to consider to force native FreeBSD to come first as well. The only way a problem could currently be noticed is when running an i386 binary without the .note.ABI-tag on amd64 and the Debian GNU/kFreeBSD brandinfo was matched first, as the fallback to ld-elf32.so.1 does not exist in that case. Reported and tested by: ticso In collaboration with: kib Notes: svn path=/stable/7/; revision=196924
* MFC r194295Alan Cox2009-09-052-16/+16
| | | | | | | | Move (read|write)_cyrix_reg() inlines from specialreg.h to cpufunc.h. specialreg.h now consists solely of register-related macros. Notes: svn path=/stable/7/; revision=196853
* MFC 193396, 193521, 194331, 194337, 194376, 194454, 194562, 194642, 195033,John Baldwin2009-09-043-22/+104
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 195385, 195649, 195660, 195749, and 195774: Add support to the virtual memory system for configuring machine- dependent memory attributes: - Refactor contigmalloc() into two functions: a simple front-end that deals with the malloc tag and calls a new back-end, kmem_alloc_contig(), that allocates the pages and maps them. - Use kmem_alloc_contig() to implement the UMA back-end allocator for jumbo frame zones. - Use kmem_alloc_contig() to allocate the top-level page tables for PAE. - Introduce vm_memattr_t to as a type to hold memory attributes. - 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. Reviewed by: alc Notes: svn path=/stable/7/; revision=196838
* MFC 180430, 180483, 180485, 180601, 180845, 180871-180873, 181043, 181077,John Baldwin2009-09-032-98/+222
| | | | | | | | | | | | | | | | | | | | | | | 181151, 181284, 181356, 181456, 189454, 194209, 195416, 195836, 196318, 196705, and 196707: Various fixes and enhancements to the amd64 and i386 pmaps to support PAT. - Extend pmap_demote_pde() to include the ability to instantiate a new page table page where none existed before. - Enhance pmap_change_attr() to fully support large (2/4MB) pages by breaking demoting them to 4KB page mappings when needed. - Enhance pmap_change_attr() to avoid page demotions, cache mode changes, and cache and TLB invalidation when some or all of the specified range is already mapped with the specified cache mode. - Enhance pmap_change_attr() to adjust the direct map automatically when changing the cache mode of a kernel virtual address range. - Fix pmap_object_init_pt() to not assume that the pages of a OBJT_DEVICE object are always physically contiguous. - Correct a critical accounting error in pmap_demote_pde(). Reviewed by: alc Notes: svn path=/stable/7/; revision=196781
* MFC 196224:John Baldwin2009-08-283-4/+86
| | | | | | | | | | | | | | | Adjust the handling of the local APIC PMC interrupt vector: - Provide lapic_disable_pmc(), lapic_enable_pmc(), and lapic_reenable_pmc() routines in the local APIC code that the hwpmc(4) driver can use to manage the local APIC PMC interrupt vector. - Do not enable the local APIC PMC interrupt vector by default when HWPMC_HOOKS is enabled. Instead, the hwpmc(4) driver explicitly enables the interrupt when it is succesfully initialized and disables the interrupt when it is unloaded. This avoids enabling the interrupt on unsupported CPUs which may result in spurious NMIs. Notes: svn path=/stable/7/; revision=196616
* MFC r196512:Bjoern A. Zeeb2009-08-273-6/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix handling of .note.ABI-tag section for GNU systems [1]. Handle GNU/Linux according to LSB Core Specification 4.0, Chapter 11. Object Format, 11.8. ABI note tag. Also check the first word of desc, not only name, according to glibc abi-tags specification to distinguish between Linux and kFreeBSD. Add explicit handling for Debian GNU/kFreeBSD, which runs on our kernels as well [2]. In {amd64,i386}/trap.c, when checking osrel of the current process, also check the ABI to not change the signal behaviour for Linux binary processes, now that we save an osrel version for all three from the lists above in struct proc [2] (slightly different to HEAD). These changes make it possible to run FreeBSD, Debian GNU/kFreeBSD and Linux binaries on the same machine again for at least i386 and amd64, and no longer break kFreeBSD which was detected as GNU(/Linux). PR: kern/135468 Submitted by: dchagin [1] (initial patch) Suggested by: kib [2] Tested by: Petr Salinger (Petr.Salinger seznam.cz) for kFreeBSD Reviewed by: kib Notes: svn path=/stable/7/; revision=196602
* MFC: Change the ABI of some of the structures used by the SYSV IPC API:John Baldwin2009-07-311-2/+5
| | | | | | | | | | | | | | | | | | | | | - Various members of struct ipc_perm use appropriate types instead of unsigned short. - The shm_segsz member of struct shmid_ds is now a size_t instead of an int which should allow for complete support of SYSV SHM regions >= 2GB. - The shm_nattch member of struct shmid_ds is now an int instead of a short. - The existing versions of the __semctl(), msgctl(), and shmctl() system calls have been renamed to freebsd7_*() and implement the old ABI. New versions of these system calls provide the new ABI. The new system calls also use newer symbol versions in libc so old and new binaries will both work under new kernels. - Specific to 7.x: the kern_msgctl(), kern_semctl(), and kern_shmctl() functions now use ABI shims that transparently "rename" the functions to kern_new_*() for all new modules. Existing compat functions under the old names remain to provide compatibility for older kernel modules. Notes: svn path=/stable/7/; revision=196006
* MFC r195295:Ed Schouten2009-07-151-0/+1
| | | | | | | | | | | | | | Enable POSIX semaphores on all non-embedded architectures by default. More applications (including Firefox) seem to depend on this nowadays, so not having this enabled by default is a bad idea. Proposed by: miwi Patch by: Florian Smeets <flo kasimir com> Approved by: re (kib) Notes: svn path=/stable/7/; revision=195706
* MFC: r191788Jung-uk Kim2009-07-141-11/+18
| | | | | | | | | | Unlock the largest standard CPUID on Intel CPUs for both amd64 and i386. On i386, we extend it to cover Core, Core 2, and Core i7 processors, not just Pentium 4 family, and move it to better place. On amd64, all supported Intel CPUs should have this MSR. Notes: svn path=/stable/7/; revision=195687
* MFC: Replace remaining cpu_vendor with cpu_vendor_id andJung-uk Kim2009-07-136-18/+45
| | | | | | | | | | | | | | | | | add basic VIA Nano processor support for amd64 and i386. r186797 - Add Centaur/IDT/VIA vendor ID for Nano family. r187101 - Allow VIA Nano processors to boot FreeBSD/amd64. r187117 - Replace more cpu_vendor with cpu_vendor_id. r187118 - Add basic i386 support for VIA Nano processors. r187157 - Enable MSI support for VIA Nano processors on i386. r187594 - Replace more cpu_vendor with cpu_vendor_id. r187597 - Include a missing header file. r187598 - VIA Nano processor has P-state invariant TSC. r187633 - Add more VIA bridges to agp_via.c. Notes: svn path=/stable/7/; revision=195667
* MFC r193790:Xin LI2009-07-101-0/+8
| | | | | | | | | | | | | Add line width calculations for 15/16 and 24/32 bit modes in case the "Get Scan Line Length" function fails, as it does in Parallels (in Version 2.2, Build 2112 at least). PR: i386/127367 Obtained from: DragonFly Submitted by: Pedro Giffuni Notes: svn path=/stable/7/; revision=195529
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