#
272461 |
|
02-Oct-2014 |
gjb |
Copy stable/10@r272459 to releng/10.1 as part of the 10.1-RELEASE process.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
#
266019 |
|
14-May-2014 |
ian |
MFC r258268, r258271, r258272, r258274, r258275, r258427, r258694, r258696, r258697, r258757
Do not assume a value for #address-cells when parsing the OF translations map. This allows the kernel to get farther with OpenBIOS on 64-bit CPUs.
Actually look up #address-cells instead of assuming it is correlated with the Uninorth version number.
#interrupt-cells belongs to the iparent, not the device parent.
Add a sysctl to allow disabling resetting the OF syscons.
For PCI<->PCI bridges, #address-cells may be 3.
Make RTAS calls, which call setfault() to recover from machine checks, preserve any existing fault buffer.
badaddr() is used only in the grackle PCI driver, so move its definition there. Clean up a spurious setfault() declaration as well.
This [phyp_console] driver doesn't need the /options node, so don't check for it.
Use the Open Firmware-based CPU frequency determination as a generic fallback if we can't measure CPU frequency. This is also useful on a variety of embedded systems using FDT.
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#
265996 |
|
13-May-2014 |
ian |
MFC r257161, r257169, r257178, r257190, r257191
Add pmap_mapdev_attr() and pmap_kenter_attr() interfaces.
Fix concurrency issues with TLB1 updates and make pmap_kextract() search TLB1 mappings as well
Interrelated improvements to early boot mappings: - Remove explicit requirement that the SOC registers be found except as an optimization (although the MPC85XX LAW drivers still require they be found externally, which should change). - Remove magic CCSRBAR_VA value. - Allow bus_machdep.c's early-boot code to handle non 1:1 mappings and systems not in real-mode or global 1:1 maps in early boot. - Allow pmap_mapdev() on Book-E to reissue previous addresses if the area is already mapped. Additionally have it check all mappings, not just the CCSR area.
Add some extra sanity checking and checks to printf format specifiers.
Bump initial TLB size. The kernel is not necessarily less than 16 MB
Handle (in a slightly ugly way) ePAPR-type loaders that just place a device tree into r3.
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#
265952 |
|
13-May-2014 |
ian |
MFC r256792, r256793, r256799 (by nwhitehorn): Unify AIM and booke code.
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#
262675 |
|
02-Mar-2014 |
jhibbits |
MFC r261309
Unbreak non-SMP builds. This was broken by r259284. Also, reorganize the code introduced in that revision a bit.
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#
259235 |
|
11-Dec-2013 |
andreast |
MFC r257991, r257992, 257993, 258504
r257991: Consolidate Apple firmware hacks and improve them by switching on the presence of mac-io devices in the tree, which uniquely identifies Apple hardware.
r257992: Allow OF_decode_addr() to also be able to map resources on big-endian devices. To this end, make PCI device detection rely on the device_type field rather than name, as per the standard.
r257993:
Make tsec work with the device tree present on the RB800. The previous code assumed that the MDIO bus was a direct child of the Ethernet interface. It may not be and indeed on many device trees is not. While here, add proper locking for MII transactions, which may be on a bus shared by several MACs.
r258504:
Save and restore the trap vectors when doing OF calls on pSeries machines.
It turned out that on pSeries machines the call into OF modified the trap vectors and this made further behaviour unpredictable.
With this commit I'm now able to boot multi user on a network booted environment on my IntelliStation 285. This is a POWER5+ machine.
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#
256281 |
|
10-Oct-2013 |
gjb |
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
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#
248084 |
|
09-Mar-2013 |
attilio |
Switch the vm_object mutex to be a rwlock. This will enable in the 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
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#
239682 |
|
25-Aug-2012 |
rpaulo |
Unbreak tinderbox.
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#
239666 |
|
24-Aug-2012 |
rpaulo |
Set mdp only under #ifdef WII.
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#
239480 |
|
21-Aug-2012 |
adrian |
On Nintendo Wii CPUs, the mdp value will be garbage. Set it to NULL so as to not confuse things.
Submitted by: Margarida Gouveia
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#
234156 |
|
11-Apr-2012 |
nwhitehorn |
We don't need kcopy() in any of the remaining places it is used, so remove it.
MFC after: 2 weeks
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#
233949 |
|
06-Apr-2012 |
nwhitehorn |
Reduce the frequency that the PowerPC/AIM pmaps invalidate instruction caches, by invalidating kernel icaches only when needed and not flushing user caches for shared pages.
Suggested by: kib MFC after: 2 weeks
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#
230123 |
|
14-Jan-2012 |
nwhitehorn |
Rework SLB trap handling so that double-faults into an SLB trap handler are possible, and double faults within an SLB trap handler are not. The result is that it possible to take an SLB fault at any time, on any address, for any reason, at any point in the kernel.
This lets us do two important things. First, it removes the (soft) 16 GB RAM ceiling on PPC64 as well as any architectural limitations on KVA space. Second, it lets the kernel tolerate poorly designed hypervisors that have a tendency to fail to restore the SLB properly after a hypervisor context switch.
MFC after: 6 weeks
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#
228869 |
|
24-Dec-2011 |
jhibbits |
Implement hwpmc counting PMC support for PowerPC G4+ (MPC745x/MPC744x). Sampling is in progress.
Approved by: nwhitehorn (mentor) MFC after: 9.0-RELEASE
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#
227628 |
|
17-Nov-2011 |
nwhitehorn |
Use a global __pure2 function instead of a global register variable for curthread, like on x86 and sparc64. This makes the kernel somewhat more clang friendly, which doesn't support global register variables.
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#
223485 |
|
23-Jun-2011 |
nwhitehorn |
Use the ABI-mandated thread pointer register (r2 for ppc32, r13 for ppc64) instead of a PCPU field for curthread. This averts a race on SMP systems with a high interrupt rate where the thread looking up the value of curthread could be preempted and migrated between obtaining the PCPU pointer and reading the value of pc_curthread, resulting in curthread being observed to be the current thread on the thread's original CPU. This played merry havoc with the system, in particular with mutexes. Many thanks to jhb for helping me work this one out.
Note that Book-E is in principle susceptible to the same problem, but has not been modified yet due to lack of Book-E hardware.
MFC after: 2 weeks
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#
222620 |
|
02-Jun-2011 |
nwhitehorn |
The POWER7 has only 32 SLB slots instead of 64, like other supported 64-bit PowerPC CPUs. Add infrastructure to support variable numbers of SLB slots and move the user slot from 63 to 0, so that it is always available.
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#
222616 |
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02-Jun-2011 |
nwhitehorn |
Explicitly initialize the first thread's MSR to PSL_KERNSET.
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#
222615 |
|
02-Jun-2011 |
nwhitehorn |
Include the modules area in the mapped kernel code. This fixes the kernel's access to modules and loader metadata when started from real mode, but without a direct map.
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#
220818 |
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19-Apr-2011 |
andreast |
Add leading zeros when printing the physical memory chunks on __powerpc64__.
Approved by: nwhitehorn (mentor)
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#
219523 |
|
11-Mar-2011 |
mdf |
Mostly revert r219468, as I had misremembered the C standard regarding the size of an extern array.
Keep one change from strncpy to strlcpy.
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#
219468 |
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10-Mar-2011 |
mdf |
Use MAXPATHLEN rather than the size of an extern array when copying the kernel name. Also consistenly use strlcpy().
Suggested by: Warner Losh
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#
217688 |
|
21-Jan-2011 |
pluknet |
Make MSGBUF_SIZE kernel option a loader tunable kern.msgbufsize.
Submitted by: perryh pluto.rain.com (previous version) Reviewed by: jhb Approved by: kib (mentor) Tested by: universe
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#
215163 |
|
12-Nov-2010 |
nwhitehorn |
Remove use of a separate ofw_pmap on 32-bit CPUs. Many Open Firmware mappings need to end up in the kernel anyway since the kernel begins executing in OF context. Separating them adds needless complexity, especially since the powerpc64 and mmu_oea64 code gave up on it a long time ago.
As a side effect, the PPC ofw_machdep code is no longer AIM-specific, so move it to powerpc/ofw.
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#
215157 |
|
12-Nov-2010 |
nwhitehorn |
Centralize CPU idle routines into powerpc/cpu.c and use the same cpu_idle_hook mechanism that x86 uses for overriding the idle routine. This is required for supporting ilding the CPU under PowerPC hypervisors.
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#
215107 |
|
11-Nov-2010 |
nwhitehorn |
Add support for the IMISS, DLMISS, and DSMISS traps required to run FreeBSD on a G2 core.
PR: powerpc/111296 Submitted by: Andrew Turner
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#
214835 |
|
05-Nov-2010 |
jhb |
Adjust the order of operations in spinlock_enter() and spinlock_exit() to work properly with single-stepping in a kernel debugger. Specifically, these routines have always disabled interrupts before increasing the nesting count and restored the prior state of interrupts after decreasing the nesting count to avoid problems with a nested interrupt not disabling interrupts when acquiring a spin lock. However, trap interrupts for single-stepping can still occur even when interrupts are disabled. Now the saved state of interrupts is not saved in the thread until after interrupts have been disabled and the nesting count has been increased. Similarly, the saved state from the thread cannot be read once the nesting count has been decreased to zero. To fix this, use temporary variables to store interrupt state and shuffle it between the thread's MD area and the appropriate registers.
In cooperation with: bde MFC after: 1 month
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#
213456 |
|
05-Oct-2010 |
nwhitehorn |
Handle vector assist traps without a kernel panic, by setting denormalized values to zero. A correct solution would involve emulating vector operations on denormalized values, but this has little effect on accuracy and is much less complicated for now.
MFC after: 2 weeks
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#
212597 |
|
14-Sep-2010 |
grehan |
Resurrect PSIM support by moving the cacheline size-detection warning printf outside of the MMU-disabled region. A call into OpenFirmware with the MMU off resulted in an internal PSIM assert.
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#
212541 |
|
13-Sep-2010 |
mav |
Refactor timer management code with priority to one-shot operation mode. The main goal of this is to generate timer interrupts only when there is some work to do. When CPU is busy interrupts are generating at full rate of hz + stathz to fullfill scheduler and timekeeping requirements. But when CPU is idle, only minimum set of interrupts (down to 8 interrupts per second per CPU now), needed to handle scheduled callouts is executed. This allows significantly increase idle CPU sleep time, increasing effect of static power-saving technologies. Also it should reduce host CPU load on virtualized systems, when guest system is idle.
There is set of tunables, also available as writable sysctls, allowing to control wanted event timer subsystem behavior: kern.eventtimer.timer - allows to choose event timer hardware to use. On x86 there is up to 4 different kinds of timers. Depending on whether chosen timer is per-CPU, behavior of other options slightly differs. kern.eventtimer.periodic - allows to choose periodic and one-shot operation mode. In periodic mode, current timer hardware taken as the only source of time for time events. This mode is quite alike to previous kernel behavior. One-shot mode instead uses currently selected time counter hardware to schedule all needed events one by one and program timer to generate interrupt exactly in specified time. Default value depends of chosen timer capabilities, but one-shot mode is preferred, until other is forced by user or hardware. kern.eventtimer.singlemul - in periodic mode specifies how much times higher timer frequency should be, to not strictly alias hardclock() and statclock() events. Default values are 2 and 4, but could be reduced to 1 if extra interrupts are unwanted. kern.eventtimer.idletick - makes each CPU to receive every timer interrupt independently of whether they busy or not. By default this options is disabled. If chosen timer is per-CPU and runs in periodic mode, this option has no effect - all interrupts are generating.
As soon as this patch modifies cpu_idle() on some platforms, I have also refactored one on x86. Now it makes use of MONITOR/MWAIT instrunctions (if supported) under high sleep/wakeup rate, as fast alternative to other methods. It allows SMP scheduler to wake up sleeping CPUs much faster without using IPI, significantly increasing performance on some highly task-switching loads.
Tested by: many (on i386, amd64, sparc64 and powerc) H/W donated by: Gheorghe Ardelean Sponsored by: iXsystems, Inc.
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#
212453 |
|
11-Sep-2010 |
mav |
Update PowerPC event timer code to use new event timers infrastructure.
Reviewed by: nwitehorn Tested by: andreast H/W donated by: Gheorghe Ardelean
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#
212054 |
|
31-Aug-2010 |
nwhitehorn |
Restructure how reset and poweroff are handled on PowerPC systems, since the existing code was very platform specific, and broken for SMP systems trying to reboot from KDB.
- Add a new PLATFORM_RESET() method to the platform KOBJ interface, and migrate existing reset functions into platform modules. - Modify the OF_reboot() routine to submit the request by hand to avoid the IPIs involved in the regular openfirmware() routine. This fixes reboot from KDB on SMP machines. - Move non-KDB reset and poweroff functions on the Powermac platform into the relevant power control drivers (cuda, pmu, smu), instead of using them through the Open Firmware backdoor. - Rename platform_chrp to platform_powermac since it has become increasingly Powermac specific. When we gain support for IBM systems, we will grow a new platform_chrp.
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#
209975 |
|
13-Jul-2010 |
nwhitehorn |
MFppc64:
Kernel sources for 64-bit PowerPC, along with build-system changes to keep 32-bit kernels compiling (build system changes for 64-bit kernels are coming later). Existing 32-bit PowerPC kernel configurations must be updated after this change to specify their architecture.
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#
209950 |
|
12-Jul-2010 |
nwhitehorn |
Unify ABI-related bits of the Book-E and AIM machdep routines (exec_setregs, etc.) in order to simplify the addition of 64-bit support, and possible future extension of the Book-E code to handle hard floating point and Altivec.
MFC after: 1 month
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#
209613 |
|
30-Jun-2010 |
jhb |
Move prototypes for kern_sigtimedwait() and kern_sigprocmask() to <sys/syscallsubr.h> where all other kern_<syscall> prototypes live.
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#
205642 |
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25-Mar-2010 |
nwhitehorn |
Change the arguments of exec_setregs() so that it receives a pointer to the image_params struct instead of several members of that struct individually. This makes it easier to expand its arguments in the future without touching all platforms.
Reviewed by: jhb
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#
204128 |
|
20-Feb-2010 |
nwhitehorn |
Reduce KVA pressure on OEA64 systems running in bridge mode by mapping UMA segments at their physical addresses instead of into KVA. This emulates the direct mapping behavior of OEA32 in an ad-hoc way. To make this work properly required sharing the entire kernel PMAP with Open Firmware, so ofw_pmap is transformed into a stub on 64-bit CPUs.
Also implement some more tweaks to get more mileage out of our limited amount of KVA, principally by extending KVA into segment 16 until the beginning of the first OFW mapping.
Reported by: linimon
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#
200083 |
|
03-Dec-2009 |
nwhitehorn |
The first argument of dcbz interprets r0 as a literal zero, not the second. This worked before by accident.
MFC after: 1 week
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#
199886 |
|
28-Nov-2009 |
nwhitehorn |
Add a CPU features framework on PowerPC and simplify CPU setup a little more. This provides three new sysctls to user space: hw.cpu_features - A bitmask of available CPU features hw.floatingpoint - Whether or not there is hardware FP support hw.altivec - Whether or not Altivec is available
PR: powerpc/139154 MFC after: 10 days
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#
198588 |
|
29-Oct-2009 |
nwhitehorn |
Turn off Altivec data-stream prefetching before going into power-save mode on those CPUs that need it.
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#
198507 |
|
27-Oct-2009 |
kib |
In r197963, a race with thread being selected for signal delivery while in kernel mode, and later changing signal mask to block the signal, was fixed for sigprocmask(2) and ptread_exit(3). The same race exists for sigreturn(2), setcontext(2) and swapcontext(2) syscalls.
Use kern_sigprocmask() instead of direct manipulation of td_sigmask to reschedule newly blocked signals, closing the race.
Reviewed by: davidxu Tested by: pho MFC after: 1 month
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#
198427 |
|
23-Oct-2009 |
nwhitehorn |
Add some more paranoia to setting HID registers, and update the AIM clock routines to work better with SMP. This makes SMP work fully and stably on an Xserve G5.
Obtained from: Book-E (clock bits)
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#
193909 |
|
10-Jun-2009 |
grehan |
Get the gdb/psim emulator functioning again.
aim/machdep.c: - the RI status register bit needs to be set when doing the mtmsrd 64-bit instruction test - psim doesn't implement the dcbz instruction so the run-time cacheline test fails. Set the cachline size to 32 to avoid infinite loops in future calls to __syncicache()
aim/platform_chrp.c: - if after iterating through / and a name property of "cpus" still isn't found, just search directly for '/cpus'. - psim doesn't put a "reg" property on it's cpu nodes, so assume 0 since it is uniprocessor-only at this point
powerpc/openpic.c - the number of CPUs reported is 1 too many on psim's openpic
Reviewed by: nwhitehorn MFC after: 1 week (openpic part)
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#
193156 |
|
31-May-2009 |
nwhitehorn |
Introduce support for cpufreq on PowerPC with the dynamic frequency switching capabilities of the MPC7447A and MPC7448.
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#
192323 |
|
18-May-2009 |
marcel |
Add cpu_flush_dcache() for use after non-DMA based I/O so that a possible future I-cache coherency operation can succeed. On ARM for example the L1 cache can be (is) virtually mapped, which means that any I/O that uses temporary mappings will not see the I-cache made coherent. On ia64 a similar behaviour has been observed. By flushing the D-cache, execution of binaries backed by md(4) and/or NFS work reliably. For Book-E (powerpc), execution over NFS exhibits SIGILL once in a while as well, though cpu_flush_dcache() hasn't been implemented yet.
Doing an explicit D-cache flush as part of the non-DMA based I/O read operation eliminates the need to do it as part of the I-cache coherency operation itself and as such avoids pessimizing the DMA-based I/O read operations for which D-cache are already flushed/invalidated. It also allows future optimizations whereby the bcopy() followed by the D-cache flush can be integrated in a single operation, which could be implemented using on-chips DMA engines, by-passing the D-cache altogether.
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#
192067 |
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13-May-2009 |
nwhitehorn |
Factor out platform dependent things unrelated to device drivers into a new platform module. These are probed in early boot, and have the responsibility of determining the layout of physical memory, determining the CPU timebase frequency, and handling the zoo of SMP mechanisms found on PowerPC.
Reviewed by: marcel, raj Book-E parts by: raj
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#
191455 |
|
24-Apr-2009 |
raj |
Zero PCB during early AIM PowerPC init.
When memory is not zero'ed by firmware, uninitialized PCB can have bogus contents, which appear as a saved onfault condition, Altivec context to restore etc. and lead to corruption/crashes. This commit fixes such issues.
Submitted by: Michal Mazur arg ! semihalf dot com Tested by: Andreas Tobler andreast-list ! fgznet dot ch
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#
190953 |
|
12-Apr-2009 |
nwhitehorn |
Rework the way we get the cacheline size. Instead of having a table of CPUs known to use 128 byte cache lines and defaulting to 32, use the dcbz instruction to measure it. Also make dcbz behave the way you would expect on PPC 970.
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#
190750 |
|
05-Apr-2009 |
nwhitehorn |
Fix the build when KDB is disabled. The second instance of rfi in trap_subr.S that is patched at runtime to rfid on 64-bit systems is inside KDB-specific code, so don't patch it without KDB.
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#
190681 |
|
03-Apr-2009 |
nwhitehorn |
Add support for 64-bit PowerPC CPUs operating in the 64-bit bridge mode provided, for example, on the PowerPC 970 (G5), as well as on related CPUs like the POWER3 and POWER4.
This also adds support for various built-in hardware found on Apple G5 hardware (e.g. the IBM CPC925 northbridge).
Reviewed by: grehan
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#
188860 |
|
20-Feb-2009 |
nwhitehorn |
Add Altivec support for supported CPUs. This is derived from the FPU support code, and also reducing the size of trapcode to fit inside a 32 byte handler slot.
Reviewed by: grehan MFC after: 2 weeks
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#
186347 |
|
19-Dec-2008 |
nwhitehorn |
Modularize the Open Firmware client interface to allow run-time switching of OFW access semantics, in order to allow future support for real-mode OF access and flattened device frees. OF client interface modules are implemented using KOBJ, in a similar way to the PPC PMAP modules.
Because we need Open Firmware to be available before mutexes can be used on sparc64, changes are also included to allow KOBJ to be used very early in the boot process by only using the mutex once we know it has been initialized.
Reviewed by: marius, grehan
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#
183319 |
|
23-Sep-2008 |
nwhitehorn |
Allow the cacheline size on PowerPC to be set at runtime. This is essential for supporting 64-bit CPUs, which often have 128-byte cache lines instead of the standard 32.
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#
182485 |
|
30-Aug-2008 |
marcel |
Call powerpc_sync() instead of using an asm statement.
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#
179229 |
|
23-May-2008 |
alc |
The VM system no longer uses setPQL2(). Remove it and its helpers.
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#
178628 |
|
27-Apr-2008 |
marcel |
MFp4: SMP support
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#
178471 |
|
25-Apr-2008 |
jeff |
- Add an integer argument to idle to indicate how likely we are to wake from idle over the next tick. - Add a new MD routine, cpu_wake_idle() to wakeup idle threads who are suspended in cpu specific states. This function can fail and cause the scheduler to fall back to another mechanism (ipi). - Implement support for mwait in cpu_idle() on i386/amd64 machines that support it. mwait is a higher performance way to synchronize cpus as compared to hlt & ipis. - Allow selecting the idle routine by name via sysctl machdep.idle. This replaces machdep.cpu_idle_hlt. Only idle routines supported by the current machine are permitted.
Sponsored by: Nokia
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#
178429 |
|
22-Apr-2008 |
phk |
Now that all platforms use genclock, shuffle things around slightly for better structure.
Much of this is related to <sys/clock.h>, which should really have been called <sys/calendar.h>, but unless and until we need the name, the repocopy can wait.
In general the kernel does not know about minutes, hours, days, timezones, daylight savings time, leap-years and such. All that is theoretically a matter for userland only.
Parts of kernel code does however care: badly designed filesystems store timestamps in local time and RTC chips almost universally track time in a YY-MM-DD HH:MM:SS format, and sometimes in local timezone instead of UTC. For this we have <sys/clock.h>
<sys/time.h> on the other hand, deals with time_t, timeval, timespec and so on. These know only seconds and fractions thereof.
Move inittodr() and resettodr() prototypes to <sys/time.h>. Retain the names as it is one of the few surviving PDP/VAX references.
Move startrtclock() to <machine/clock.h> on relevant platforms, it is a MD call between machdep.c/clock.c. Remove references to it elsewhere.
Remove a lot of unnecessary <sys/clock.h> includes.
Move the machdep.disable_rtc_set sysctl to subr_rtc.c where it belongs. XXX: should be kern.disable_rtc_set really, it's not MD.
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#
178261 |
|
16-Apr-2008 |
marcel |
Allocate a stack (with optional guard pages) for thread0 and switch to it before calling mi_startup().
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#
177253 |
|
16-Mar-2008 |
rwatson |
In keeping with style(9)'s recommendations on macros, use a ';' after each SYSINIT() macro invocation. This makes a number of lightweight C parsers much happier with the FreeBSD kernel source, including cflow's prcc and lxr.
MFC after: 1 month Discussed with: imp, rink
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#
176919 |
|
07-Mar-2008 |
marcel |
For AIM, have cpu_idle() set MSR_POW when the powerpc_pow_enabled variable is set. On my Mac Mini this puts the CPU in NAP mode when the kernel is idle and, any technical or environmental reasons aside, avoids that I have to listen to the fan all day :-)
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#
176742 |
|
02-Mar-2008 |
raj |
Unify and generalize PowerPC headers, adjust AIM code accordingly.
Rework of this area is a pre-requirement for importing e500 support (and other PowerPC core variations in the future). Mainly the following headers are refactored so that we can cover for low-level differences between various machines within PowerPC architecture:
<machine/pcpu.h> <machine/pcb.h> <machine/kdb.h> <machine/hid.h> <machine/frame.h>
Areas which use the above are adjusted and cleaned up.
Credits for this rework go to marcel@
Approved by: cognet (mentor) MFp4: e500
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#
176222 |
|
12-Feb-2008 |
marcel |
Remove SMP left-overs from NetBSD.
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#
174898 |
|
25-Dec-2007 |
rwatson |
Add a new 'why' argument to kdb_enter(), and a set of constants to use for that argument. This will allow DDB to detect the broad category of reason why the debugger has been entered, which it can use for the purposes of deciding which DDB script to run.
Assign approximate why values to all current consumers of the kdb_enter() interface.
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#
174599 |
|
14-Dec-2007 |
marcel |
Forced commit to record that this file was repocopied from src/sys/powerpc/powerpc and modified for its new location.
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#
173584 |
|
13-Nov-2007 |
grehan |
Split decr_init() into two, with the section that reads the timebase frequency from OpenFirmware moved out and into a routine that is called from cpu_startup().
This allows correct reporting of the CPU clockspeed when printing out CPU information at boot time.
Reported by: numerous Reviewed by: marcel MFC after: 1 day
|
#
173361 |
|
05-Nov-2007 |
kib |
Fix for the panic("vm_thread_new: kstack allocation failed") and silent NULL pointer dereference in the i386 and sparc64 pmap_pinit() when the kmem_alloc_nofault() failed to allocate address space. Both functions now return error instead of panicing or dereferencing NULL.
As consequence, vmspace_exec() and vmspace_unshare() returns the errno int. struct vmspace arg was added to vm_forkproc() to avoid dealing with failed allocation when most of the fork1() job is already done.
The kernel stack for the thread is now set up in the thread_alloc(), that itself may return NULL. Also, allocation of the first process thread is performed in the fork1() to properly deal with stack allocation failure. proc_linkup() is separated into proc_linkup() called from fork1(), and proc_linkup0(), that is used to set up the kernel process (was known as swapper).
In collaboration with: Peter Holm Reviewed by: jhb
|
#
170170 |
|
31-May-2007 |
attilio |
Revert VMCNT_* operations introduction. Probabilly, a general approach is not the better solution here, so we should solve the sched_lock protection problems separately.
Requested by: alc Approved by: jeff (mentor)
|
#
170036 |
|
27-May-2007 |
marcel |
Don't initialize the decrementer before initclocks() is called. Use cpu_initclocks() for that as it assures that relevant locks have been initialized.
|
#
169667 |
|
18-May-2007 |
jeff |
- define and use VMCNT_{GET,SET,ADD,SUB,PTR} macros for manipulating vmcnts. This can be used to abstract away pcpu details but also changes to use atomics for all counters now. This means sched lock is no longer responsible for protecting counts in the switch routines.
Contributed by: Attilio Rao <attilio@FreeBSD.org>
|
#
166659 |
|
12-Feb-2007 |
kevlo |
Remove the cast to caddr_t for sfp, they're not needed.
Reviewed by: marcel
|
#
166011 |
|
14-Jan-2007 |
marcel |
Propagate the CPU model to the hw.model sysctl.
|
#
164936 |
|
06-Dec-2006 |
julian |
Threading cleanup.. part 2 of several.
Make part of John Birrell's KSE patch permanent.. Specifically, remove: Any reference of the ksegrp structure. This feature was never fully utilised and made things overly complicated. All code in the scheduler that tried to make threaded programs fair to unthreaded programs. Libpthread processes will already do this to some extent and libthr processes already disable it.
Also: Since this makes such a big change to the scheduler(s), take the opportunity to rename some structures and elements that had to be moved anyhow. This makes the code a lot more readable.
The ULE scheduler compiles again but I have no idea if it works.
The 4bsd scheduler still reqires a little cleaning and some functions that now do ALMOST nothing will go away, but I thought I'd do that as a separate commit.
Tested by David Xu, and Dan Eischen using libthr and libpthread.
|
#
163709 |
|
26-Oct-2006 |
jb |
Make KSE a kernel option, turned on by default in all GENERIC kernel configs except sun4v (which doesn't process signals properly with KSE).
Reviewed by: davidxu@
|
#
160959 |
|
03-Aug-2006 |
sobomax |
Use proper trap code for the EXC_ALI traps. This fixes SIGBUS during unaligned 64-bits load/stores.
MFC after: 2 weeks
|
#
158651 |
|
16-May-2006 |
phk |
Since DELAY() was moved, most <machine/clock.h> #includes have been unnecessary.
|
#
154091 |
|
06-Jan-2006 |
grehan |
Set the siginfo si_addr field, and also the mysterious 3rd parameter to old-style signals, to be the DAR register for DSI miss exceptions. This gives the address of the access rather than the instruction address. The behaviour is now the same as on i386.
Found by: libsigsegv tests
|
#
153940 |
|
31-Dec-2005 |
netchild |
MI changes: - provide an interface (macros) to the page coloring part of the VM system, this allows to try different coloring algorithms without the need to touch every file [1] - make the page queue tuning values readable: sysctl vm.stats.pagequeue - autotuning of the page coloring values based upon the cache size instead of options in the kernel config (disabling of the page coloring as a kernel option is still possible)
MD changes: - detection of the cache size: only IA32 and AMD64 (untested) contains cache size detection code, every other arch just comes with a dummy function (this results in the use of default values like it was the case without the autotuning of the page coloring) - print some more info on Intel CPU's (like we do on AMD and Transmeta CPU's)
Note to AMD owners (IA32 and AMD64): please run "sysctl vm.stats.pagequeue" and report if the cache* values are zero (= bug in the cache detection code) or not.
Based upon work by: Chad David <davidc@acns.ab.ca> [1] Reviewed by: alc, arch (in 2004) Discussed with: alc, Chad David, arch (in 2004)
|
#
152179 |
|
08-Nov-2005 |
grehan |
Insert a layer of indirection to the pmap code, using a kobj for the interface. This allows run-time selection of MMU code, based on CPU-type detection, or tunable-overrides when testing new code.
Pre-requisite for G5 support.
conf/files.powerpc - remove pmap.c - add mmu_if.h, mmu_oea.c, pmap_dispatch.c
powerpc/include/mmuvar.h - definitions for MMU implementations
powerpc/include/pmap.h - remove pmap_pte_spill declaration - add pmap_mmu_install declaration - size the phys_avail array - pmap_bootstrapped is now global-scope
powerpc/powerpc/machdep.c - call kobj_machdep_init early in the boot sequence to allow kobj usage prior to SI_SUB_LOCK - install the OEA pmap code. This will be moved to CPU-specific init code in the future.
powerpc/powerpc/mmu_if.m - Kobj MMU interface definitions
powerpc/powerpc/pmap_dispatch.c - central dispatch for pmap calls - contains the global mmu kobj and the routine to locate the the mmu implementation and init the kobj
|
#
151316 |
|
14-Oct-2005 |
davidxu |
1. Change prototype of trapsignal and sendsig to use ksiginfo_t *, most changes in MD code are trivial, before this change, trapsignal and sendsig use discrete parameters, now they uses member fields of ksiginfo_t structure. For sendsig, this change allows us to pass POSIX realtime signal value to user code.
2. Remove cpu_thread_siginfo, it is no longer needed because we now always generate ksiginfo_t data and feed it to libpthread.
3. Add p_sigqueue to proc structure to hold shared signals which were blocked by all threads in the proc.
4. Add td_sigqueue to thread structure to hold all signals delivered to thread.
5. i386 and amd64 now return POSIX standard si_code, other arches will be fixed.
6. In this sigqueue implementation, pending signal set is kept as before, an extra siginfo list holds additional siginfo_t data for signals. kernel code uses psignal() still behavior as before, it won't be failed even under memory pressure, only exception is when deleting a signal, we should call sigqueue_delete to remove signal from sigqueue but not SIGDELSET. Current there is no kernel code will deliver a signal with additional data, so kernel should be as stable as before, a ksiginfo can carry more information, for example, allow signal to be delivered but throw away siginfo data if memory is not enough. SIGKILL and SIGSTOP have fast path in sigqueue_add, because they can not be caught or masked. The sigqueue() syscall allows user code to queue a signal to target process, if resource is unavailable, EAGAIN will be returned as specification said. Just before thread exits, signal queue memory will be freed by sigqueue_flush. Current, all signals are allowed to be queued, not only realtime signals.
Earlier patch reviewed by: jhb, deischen Tested on: i386, amd64
|
#
148568 |
|
30-Jul-2005 |
grehan |
Temporary band-aid to fix hang when a process exec's Altivec instructions.
trap_subr.S: declare a stub for the a-unavailable trap that does an absolute jump to the vector-assist trap. This is due to the fact that the vec-unavail trap doesn't start at a 256-byte boundary, so the trick of masking the bottom 8 bits of the link register to identify the interrupt doesn't work, so let the vec-assist case handle Altivec-disabled for the time being.
Note that this will be fixed in the future with a much smaller vector code-stub (< 16 bytes) that will allow use of strange vector offsets that are also present in 4xx processors, and also allow smaller differences in vector codepaths on the G5.
trap.c: Treat altivec-unavailable/assist process traps as SIGILL. Not quite correct, since altivec-assist should really be a panic, but it is fine for the moment due to the above measure.
machdep.c Install the stub code for the altivec-unavailable trap, and the standard trap code at the altivec-assist.
Reported by: Andreas Tobler <toa at pop agri ch> MFC after: 3 days
|
#
144807 |
|
08-Apr-2005 |
jhb |
Change an instance of md_savecrit to md_saved_msr that I missed.
|
#
144637 |
|
04-Apr-2005 |
jhb |
Divorce critical sections from spinlocks. Critical sections as denoted by critical_enter() and critical_exit() are now solely a mechanism for deferring kernel preemptions. They no longer have any affect on interrupts. This means that standalone critical sections are now very cheap as they are simply unlocked integer increments and decrements for the common case.
Spin mutexes now use a separate KPI implemented in MD code: spinlock_enter() and spinlock_exit(). This KPI is responsible for providing whatever MD guarantees are needed to ensure that a thread holding a spin lock won't be preempted by any other code that will try to lock the same lock. For now all archs continue to block interrupts in a "spinlock section" as they did formerly in all critical sections. Note that I've also taken this opportunity to push a few things into MD code rather than MI. For example, critical_fork_exit() no longer exists. Instead, MD code ensures that new threads have the correct state when they are created. Also, we no longer try to fixup the idlethreads for APs in MI code. Instead, each arch sets the initial curthread and adjusts the state of the idle thread it borrows in order to perform the initial context switch.
This change is largely a big NOP, but the cleaner separation it provides will allow for more efficient alternative locking schemes in other parts of the kernel (bare critical sections rather than per-CPU spin mutexes for per-CPU data for example).
Reviewed by: grehan, cognet, arch@, others Tested on: i386, alpha, sparc64, powerpc, arm, possibly more
|
#
143201 |
|
06-Mar-2005 |
grehan |
physmem is a much better indicator for 'real' memory on PPC than Maxmem since there are often significant holes in the memory map due to the kernel, loader and OFW data structures not being included: Maxmem is the highest available, so can be misleading.
|
#
142882 |
|
01-Mar-2005 |
grehan |
Catch up with "physical memory" sysctl change. (MFi386: rev 1.608)
|
#
142771 |
|
28-Feb-2005 |
grehan |
Catch the case where the idle loop is entered with interrupts disabled, causing a hard hang.
|
#
142764 |
|
28-Feb-2005 |
grehan |
- switch pcpu to a struct declaration ala amd64. It may be more efficient to cache-align this struct, but that's a topic for a far-in-the-future commit. - eliminate commented-out reference to a non-existent pcpu field.
|
#
142756 |
|
28-Feb-2005 |
grehan |
Correctly set kernelname for kern.bootfile sysctl
Noticed by: gad Code stolen from: sparc64
|
#
141378 |
|
05-Feb-2005 |
njl |
Finish the job of sorting all includes and fix the build by including malloc.h before proc.h on sparc64. Noticed by das@
Compiled on: alpha, amd64, i386, pc98, sparc64
|
#
141249 |
|
04-Feb-2005 |
njl |
Sort includes a little so that bus.h comes before cpu.h (for device_t).
|
#
141237 |
|
04-Feb-2005 |
njl |
Add an implementation of cpu_est_clockrate(9). This function estimates the current clock frequency for the given CPU id in units of Hz.
|
#
139825 |
|
07-Jan-2005 |
imp |
/* -> /*- for license, minor formatting changes
|
#
138129 |
|
27-Nov-2004 |
das |
Don't include sys/user.h merely for its side-effect of recursively including other headers.
|
#
137912 |
|
20-Nov-2004 |
das |
U areas are going away, so don't allocate one for process 0.
Reviewed by: arch@
|
#
134791 |
|
05-Sep-2004 |
julian |
Refactor a bunch of scheduler code to give basically the same behaviour but with slightly cleaned up interfaces.
The KSE structure has become the same as the "per thread scheduler private data" structure. In order to not make the diffs too great one is #defined as the other at this time.
The KSE (or td_sched) structure is now allocated per thread and has no allocation code of its own.
Concurrency for a KSEGRP is now kept track of via a simple pair of counters rather than using KSE structures as tokens.
Since the KSE structure is different in each scheduler, kern_switch.c is now included at the end of each scheduler. Nothing outside the scheduler knows the contents of the KSE (aka td_sched) structure.
The fields in the ksegrp structure that are to do with the scheduler's queueing mechanisms are now moved to the kg_sched structure. (per ksegrp scheduler private data structure). In other words how the scheduler queues and keeps track of threads is no-one's business except the scheduler's. This should allow people to write experimental schedulers with completely different internal structuring.
A scheduler call sched_set_concurrency(kg, N) has been added that notifies teh scheduler that no more than N threads from that ksegrp should be allowed to be on concurrently scheduled. This is also used to enforce 'fainess' at this time so that a ksegrp with 10000 threads can not swamp a the run queue and force out a process with 1 thread, since the current code will not set the concurrency above NCPU, and both schedulers will not allow more than that many onto the system run queue at a time. Each scheduler should eventualy develop their own methods to do this now that they are effectively separated.
Rejig libthr's kernel interface to follow the same code paths as linkse for scope system threads. This has slightly hurt libthr's performance but I will work to recover as much of it as I can.
Thread exit code has been cleaned up greatly. exit and exec code now transitions a process back to 'standard non-threaded mode' before taking the next step. Reviewed by: scottl, peter MFC after: 1 week
|
#
132836 |
|
29-Jul-2004 |
ssouhlal |
Implement MD parts of ptrace.
Approved by: grehan (mentor)
|
#
132681 |
|
27-Jul-2004 |
grehan |
Improve boot-time debugging with DDB by extracting the ksym start/end values from the loader.
|
#
132569 |
|
23-Jul-2004 |
grehan |
Allow DSI exceptions to invoke DDB.
|
#
132426 |
|
20-Jul-2004 |
grehan |
Properly obey PPC context synchronization rules when modifying the address translation bits of the MSR. This fixes the boot-time panic reported by Drew Gallatin.
|
#
132088 |
|
13-Jul-2004 |
davidxu |
Add ptrace_clear_single_step(), alpha already has it for years, the function will be used by ptrace to clear a thread's single step state.
|
#
132073 |
|
12-Jul-2004 |
grehan |
- DDB -> KDB, with kdb routines - ddb -> db for low-level trapcode - implement makectx. I think it only matters that the stack is setup correctly. - bring over ddb_trap_glue and rename to db_trap_glue
|
#
126474 |
|
02-Mar-2004 |
grehan |
Kernel changes for libthr (and probably libpthread).
include/ucontext.h - remove trapframe and switch over to 'generic' description of machine state. Include version field to help with future modifications. Include floating point and altivec state, and hopefully align correctly
powerpc/copyinout.c - fill out casuptr() sync primitive, required by kern_umtx.c
powerpc/machdep.c - shifted proc0/thread0/pcpu setup to before cninit, since syscons -> make_dev -> devlock requires a valid curthread - implemented get_mcontext/set_mcontext - recast sendsig/sigreturn to use get/set_mcontext and new ucontext struct. floating point now saved - TODO: save/restore altivec state
powerpc/vm_machdep.c - implemented cpu_thread_setup/cpu_set_upcall/cpu_set_upcall_kse - eliminated trailing whitespace
Submitted by: Suleiman Souhlal <refugee@segfaulted.com>, ucontext by grehan
|
#
125687 |
|
11-Feb-2004 |
grehan |
Cleaned up param.h:
- culled long-dead #define's - segment register defs moved to sr.h - NPMAPS moved to pmap.h - KERNBASE moved to vmparam.h - removed include of <machine/cpu.h> and fixed src files that relied on this.
Modifying segment register code no longer causes gcc rebuilds :-)
|
#
125440 |
|
04-Feb-2004 |
grehan |
- remove unused trap definitions - ISI traps are now handled by the generic trap routine - direct diagnostic traps to DDB if defined - remove unused asngen pcpu init
|
#
124772 |
|
21-Jan-2004 |
grehan |
- Catch up with panic __LINE__/__FILE__ changes by moving panic calls out of asm. - remove some long-dead code from machdep.c
|
#
124092 |
|
03-Jan-2004 |
davidxu |
Make sigaltstack as per-threaded, because per-process sigaltstack state is useless for threaded programs, multiple threads can not share same stack. The alternative signal stack is private for thread, no lock is needed, the orignal P_ALTSTACK is now moved into td_pflags and renamed to TDP_ALTSTACK. For single thread or Linux clone() based threaded program, there is no semantic changed, because those programs only have one kernel thread in every process.
Reviewed by: deischen, dfr
|
#
123353 |
|
09-Dec-2003 |
gallatin |
Use the "shut-down" and "reset-all" Forth procedures to halt and reboot, as calling OF_exit() just hangs a mac.
FreeBSD on my G4 800Mhz mac behaves identically to OSX for halt and reboot now.
Reviewed by: grehan (who also supplied the concept and sample code)
|
#
122364 |
|
09-Nov-2003 |
marcel |
Change the clear_ret argument of get_mcontext() to be a flags argument. Since all callers either passed 0 or 1 for clear_ret, define bit 0 in the flags for use as clear_ret. Reserve bits 1, 2 and 3 for use by MI code for possible (but unlikely) future use. The remaining bits are for use by MD code.
This change is triggered by a need on ia64 to have another knob for get_mcontext().
|
#
121237 |
|
19-Oct-2003 |
peter |
Add a stub cpu_idle() function for sparc64, alpha, powerpc. This is a MI declared function so it should be everywhere.
|
#
118239 |
|
30-Jul-2003 |
peter |
Deal with 'options KSTACK_PAGES' being a global option.
|
#
117600 |
|
14-Jul-2003 |
davidxu |
Rename thread_siginfo to cpu_thread_siginfo.
Suggested by: jhb
|
#
116958 |
|
28-Jun-2003 |
davidxu |
Add a machine depended function thread_siginfo, SA signal code will use the function to construct a siginfo structure and use the result to export to userland.
Reviewed by: julian
|
#
116804 |
|
25-Jun-2003 |
grehan |
Remove unused bootpath[] variable. It conflicted with a declaration in the sunlabel utility, causing build problems.
|
#
114983 |
|
13-May-2003 |
jhb |
- Merge struct procsig with struct sigacts. - Move struct sigacts out of the u-area and malloc() it using the M_SUBPROC malloc bucket. - Add a small sigacts_*() API for managing sigacts structures: sigacts_alloc(), sigacts_free(), sigacts_copy(), sigacts_share(), and sigacts_shared(). - Remove the p_sigignore, p_sigacts, and p_sigcatch macros. - Add a mutex to struct sigacts that protects all the members of the struct. - Add sigacts locking. - Remove Giant from nosys(), kill(), killpg(), and kern_sigaction() now that sigacts is locked. - Several in-kernel functions such as psignal(), tdsignal(), trapsignal(), and thread_stopped() are now MP safe.
Reviewed by: arch@ Approved by: re (rwatson)
|
#
114374 |
|
01-May-2003 |
peter |
Back out last commits. The elf64/elf32 kernel name thing was more pain than it was worth.
|
#
114342 |
|
30-Apr-2003 |
peter |
Fix transcription error. Use == NULL, not != NULL. Fortunately this was harmless.
|
#
114340 |
|
30-Apr-2003 |
peter |
Look for an elf32 kernel (powerpc) and elf64 kernel (sparc64) as well as a plain "elf kernel".
|
#
113998 |
|
24-Apr-2003 |
deischen |
Add an argument to get_mcontext() which specified whether the syscall return values should be cleared. The system calls getcontext() and swapcontext() want to return 0 on success but these contexts can be switched to at a later time so the return values need to be cleared in the saved register sets. Other callers of get_mcontext() would normally want the context without clearing the return values.
Remove the i386-specific context saving from the KSE code. get_mcontext() is not i386-specific any more.
Fix a bad pointer in the alpha get_mcontext() code. The context was being bcopy()'d from &td->tf_frame, but tf_frame is itself a pointer, so the thread was being copied instead. Spotted by jake.
Glanced at by: jake Reviewed by: bde (months ago)
|
#
113038 |
|
03-Apr-2003 |
obrien |
Use __FBSDID rather than rcsid[].
|
#
112898 |
|
31-Mar-2003 |
jeff |
- Define a new md function 'casuptr'. This atomically compares and sets a pointer that is in user space. It will be used as the basic primitive for a kernel supported user space lock implementation. - Implement this function in x86's support.s - Provide stubs that return -1 in all other architectures. Implementations will follow along shortly.
Reviewed by: jake
|
#
112888 |
|
31-Mar-2003 |
jeff |
- Move p->p_sigmask to td->td_sigmask. Signal masks will be per thread with a follow on commit to kern_sig.c - signotify() now operates on a thread since unmasked pending signals are stored in the thread. - PS_NEEDSIGCHK moves to TDF_NEEDSIGCHK.
|
#
112402 |
|
19-Mar-2003 |
grehan |
Add machine check handler. While generally useful, it's required when issuing PCI config cycles on MPC106-based PowerMacs, which cause machine checks when accessing non-existent/empty slots.
|
#
110389 |
|
05-Feb-2003 |
benno |
GC an unused variable.
|
#
110387 |
|
05-Feb-2003 |
benno |
- Use cpu_setup() instead of identifycpu(). - Remove identifycpu().
|
#
110380 |
|
05-Feb-2003 |
benno |
- Rename the "powerpc" timecounter to the "decrementer" timecounter. - Initialise it earlier.
|
#
108944 |
|
08-Jan-2003 |
grehan |
Sync the i-cache after copying down the interrupt code
Approved by: benno
|
#
106977 |
|
16-Nov-2002 |
deischen |
Add getcontext, setcontext, and swapcontext as system calls. Previously these were libc functions but were requested to be made into system calls for atomicity and to coalesce what might be two entrances into the kernel (signal mask setting and floating point trap) into one.
A few style nits and comments from bde are also included.
Tested on alpha by: gallatin
|
#
106697 |
|
09-Nov-2002 |
des |
Print real / avail memory in megabytes rather than kilobytes.
|
#
106605 |
|
07-Nov-2002 |
tmm |
Move the definitions of the hw.physmem, hw.usermem and hw.availpages sysctls to MI code; this reduces code duplication and makes all of them available on sparc64, and the latter two on powerpc. The semantics by the i386 and pc98 hw.availpages is slightly changed: previously, holes between ranges of available pages would be included, while they are excluded now. The new behaviour should be more correct and brings i386 in line with the other architectures.
Move physmem to vm/vm_init.c, where this variable is used in MI code.
|
#
106503 |
|
06-Nov-2002 |
jmallett |
Remove what was a temporary bogus assignment of bits of siginfo_t, as it does not look like the prerequisites to fill it in properly will be in the tree for the upcoming release, but it's mostly done, so there is no need for these to stay around to remind us.
|
#
105950 |
|
25-Oct-2002 |
peter |
Split 4.x and 5.x signal handling so that we can keep 4.x signal handling clean and functional as 5.x evolves. This allows some of the nasty bandaids in the 5.x codepaths to be unwound.
Encapsulate 4.x signal handling under COMPAT_FREEBSD4 (there is an anti-foot-shooting measure in place, 5.x folks need this for a while) and finish encapsulating the older stuff under COMPAT_43. Since the ancient stuff is required on alpha (longjmp(3) passes a 'struct osigcontext *' to the current sigreturn(2), instead of the 'ucontext_t *' that sigreturn is supposed to take), add a compile time check to prevent foot shooting there too. Add uniform COMPAT_43 stubs for ia64/sparc64/powerpc.
Tested on: i386, alpha, ia64. Compiled on sparc64 (a few days ago). Approved by: re
|
#
103600 |
|
19-Sep-2002 |
grehan |
- implemented sendsig/sigreturn - sysctl for cacheline size, required by libc/rtld - init'd more exception vectors - fixed problem with register overwrite in exec_setregs - removed redundant NetBSD code
Approved by: benno
|
#
103367 |
|
15-Sep-2002 |
julian |
Allocate KSEs and KSEGRPs separatly and remove them from the proc structure. next step is to allow > 1 to be allocated per process. This would give multi-processor threads. (when the rest of the infrastructure is in place)
While doing this I noticed libkvm and sys/kern/kern_proc.c:fill_kinfo_proc are diverging more than they should.. corrective action needed soon.
|
#
102666 |
|
31-Aug-2002 |
peter |
Take a shot at fixing up a whole stack of style and other embarresing unforced errors that Bruce identified. I have not yet addressed all of his concerns.
|
#
102600 |
|
30-Aug-2002 |
peter |
Change hw.physmem and hw.usermem to unsigned long like they used to be in the original hardwired sysctl implementation.
The buf size calculator still overflows an integer on machines with large KVA (eg: ia64) where the number of pages does not fit into an int. Use 'long' there.
Change Maxmem and physmem and related variables to 'long', mostly for completeness. Machines are not likely to overflow 'int' pages in the near term, but then again, 640K ought to be enough for anybody. This comes for free on 32 bit machines, so why not?
|
#
102561 |
|
29-Aug-2002 |
jake |
Renamed poorly named setregs to exec_setregs. Moved its prototype to imgact.h with the other exec support functions.
|
#
99730 |
|
10-Jul-2002 |
benno |
Add DDB support.
|
#
99729 |
|
10-Jul-2002 |
benno |
- Make sure we don't trample our metadata pointer in our initial bootstrap. - Load metadata parameters.
|
#
99664 |
|
09-Jul-2002 |
benno |
Tidy up trap vector and external interrupt setup.
|
#
97384 |
|
28-May-2002 |
benno |
Move the kcopy() function from trap.c to machdep.c. Add a prototype.
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96499 |
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13-May-2002 |
benno |
FPU support.
Obtained from: NetBSD (portions)
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96352 |
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10-May-2002 |
benno |
Install the system call trap handler.
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94275 |
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09-Apr-2002 |
phk |
GC various bits and pieces of USERCONFIG from all over the place.
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94151 |
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07-Apr-2002 |
phk |
GC the "dumplo" variable, which is no longer used.
A lot of sys/*/*/machdep.c seems not to be.
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93702 |
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02-Apr-2002 |
jhb |
- Move the MI mutexes sched_lock and Giant from being declared in the various machdep.c's to being declared in kern_mutex.c. - Add a new function mutex_init() used to perform early initialization needed for mutexes such as setting up thread0's contested lock list and initializing MI mutexes. Change the various MD startup routines to call this function instead of duplicating all the code themselves.
Tested on: alpha, i386
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93273 |
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27-Mar-2002 |
jeff |
Add a new mtx_init option "MTX_DUPOK" which allows duplicate acquires of locks with this flag. Remove the dup_list and dup_ok code from subr_witness. Now we just check for the flag instead of doing string compares.
Also, switch the process lock, process group lock, and uma per cpu locks over to this interface. The original mechanism did not work well for uma because per cpu lock names are unique to each zone.
Approved by: jhb
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91803 |
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07-Mar-2002 |
benno |
Install the DSI and ISI trap handlers and their appropriate locations.
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91794 |
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07-Mar-2002 |
benno |
Move tunable initialisation so it can get access to physmem.
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91465 |
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28-Feb-2002 |
benno |
- Rearrange the sequence of events in powerpc_init() somewhat. - Catch another instance of PSL_EE being cleared without PSL_RI.
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90643 |
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13-Feb-2002 |
benno |
Complete rework of the PowerPC pmap and a number of other bits in the early boot sequence.
The new pmap.c is based on NetBSD's newer pmap.c (for the mpc6xx processors) which is 70% faster than the older code that the original pmap.c was based on. It has also been based on the framework established by jake's initial sparc64 pmap.c.
There is no change to how far the kernel gets (it makes it to the mountroot prompt in psim) but the new pmap code is a lot cleaner.
Obtained from: NetBSD (pmap code)
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90361 |
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07-Feb-2002 |
julian |
Pre-KSE/M3 commit. this is a low-functionality change that changes the kernel to access the main thread of a process via the linked list of threads rather than assuming that it is embedded in the process. It IS still embeded there but remove all teh code that assumes that in preparation for the next commit which will actually move it out.
Reviewed by: peter@freebsd.org, gallatin@cs.duke.edu, benno rice,
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90065 |
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01-Feb-2002 |
bde |
Compile osigreturn() unconditionally since it will always be needed on some arches and the syscall table is machine-independent. It was (bogusly) conditional on COMPAT_43, so this usually makes no difference.
ia64: in addition: - replace the bogus cloned comment before osigreturn() by a correct one. osigreturn() is just a stub fo ia64's. - fix the formatting of cloned comment before sigreturn(). - fix the return code. use nosys() instead of returning ENOSYS to get the same semantics as if the syscall is not in the syscall table. Generating SIGSYS is actually correct here. - fix style bugs.
powerpc: copy the cleaned up ia64 stub. This mainly fixes a bogus comment.
sparc64: copy the cleaned up the ia64 stub, since there was no stub before.
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89919 |
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28-Jan-2002 |
gallatin |
Simple fixes to get the powerpc kernel compiling again.
Reviewed by: mp
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87702 |
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11-Dec-2001 |
jhb |
Overhaul the per-CPU support a bit:
- The MI portions of struct globaldata have been consolidated into a MI struct pcpu. The MD per-CPU data are specified via a macro defined in machine/pcpu.h. A macro was chosen over a struct mdpcpu so that the interface would be cleaner (PCPU_GET(my_md_field) vs. PCPU_GET(md.md_my_md_field)). - All references to globaldata are changed to pcpu instead. In a UP kernel, this data was stored as global variables which is where the original name came from. In an SMP world this data is per-CPU and ideally private to each CPU outside of the context of debuggers. This also included combining machine/globaldata.h and machine/globals.h into machine/pcpu.h. - The pointer to the thread using the FPU on i386 was renamed from npxthread to fpcurthread to be identical with other architectures. - Make the show pcpu ddb command MI with a MD callout to display MD fields. - The globaldata_register() function was renamed to pcpu_init() and now init's MI fields of a struct pcpu in addition to registering it with the internal array and list. - A pcpu_destroy() function was added to remove a struct pcpu from the internal array and list.
Tested on: alpha, i386 Reviewed by: peter, jake
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87546 |
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08-Dec-2001 |
dillon |
Allow maxusers to be specified as 0 in the kernel config, which will cause the system to auto-size to between 32 and 512 depending on the amount of memory.
MFC after: 1 week
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86311 |
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12-Nov-2001 |
mp |
Don't enable FP in the kernel. It is not needed when -msoft-float is used.
Reminded by: benno
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86066 |
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04-Nov-2001 |
mp |
Add enable_fpu/save_fpu for handling the floating point registers in the PCB.
Obtained from: NetBSD
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85294 |
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21-Oct-2001 |
des |
[partially forced commit due to pilot error in earlier commit attempt]
{set,fill}_{,fp,db}regs() fixup:
- Add dummy {set,fill}_dbregs() on architectures that don't have them.
- KSEfy the powerpc versions (struct proc -> struct thread).
- Some architectures had the prototypes in md_var.h, some in reg.h, and some in both; for consistency, move them to reg.h on all platforms.
These functions aren't really MD (the implementation is MD, but the interface is MI), so they should move to an MI header, but I haven't figured out which one yet.
Run-tested on i386, build-tested on Alpha, untested on other platforms.
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85201 |
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19-Oct-2001 |
mp |
Fix includes based on recent changes to lock.h, mutex.h and ktr.h.
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84856 |
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12-Oct-2001 |
mp |
Modify a virtual address check to allow use of the openfirmware callback used by the PowerPC simulator (PSIM).
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84643 |
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07-Oct-2001 |
mp |
Add a call to init_param() to initialize some necessary variables.
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83870 |
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24-Sep-2001 |
mp |
Catch up to recent removal of curpcb from globals.h.
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83682 |
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19-Sep-2001 |
mp |
Update PowerPC MD code to compile and do initial bootstrap based on recent changes (KSE and VM requiring physmem to be setup).
Reviewed by: benno, jhb, julian
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82939 |
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04-Sep-2001 |
peter |
Zap #if 0'ed map init code that got moved to the MI area. Convert the powerpc tree to use the common code.
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82025 |
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21-Aug-2001 |
peter |
Make COMPAT_43 optional again. XXX we need COMPAT_FBSD3 etc for this stuff.
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81265 |
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08-Aug-2001 |
peter |
Zap 'ptrace(PT_READ_U, ...)' and 'ptrace(PT_WRITE_U, ...)' since they are a really nasty interface that should have been killed long ago when 'ptrace(PT_[SG]ETREGS' etc came along. The entity that they operate on (struct user) will not be around much longer since it is part-per-process and part-per-thread in a post-KSE world.
gdb does not actually use this except for the obscure 'info udot' command which does a hexdump of as much of the child's 'struct user' as it can get. It carries its own #defines so it doesn't break compiles.
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78884 |
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27-Jun-2001 |
benno |
Forced commit after problems with previous commit.
Enable decrementer exceptions and set up a timecounter.
With this commit I can now (with KTR enabled) see the system attempting to schedule clock swi's.
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78880 |
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27-Jun-2001 |
benno |
Fix comment breakage.
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78467 |
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19-Jun-2001 |
benno |
More verbose version of identifycpu() which also contains many more CPU versions/revisions.
Modified from the original patch to mark G3 and G4 processors as such.
Submitted by: Jeff Schottmiller <jeff@neoscale.com>
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77957 |
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10-Jun-2001 |
benno |
Bring in NetBSD code used in the PowerPC port.
Reviewed by: obrien, dfr Obtained from: NetBSD
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