Commit Graph

254 Commits

Author SHA1 Message Date
François Revol
375be9fa40 Add a machine type field. It should hold a platform dependant type. On Atari it's the high word of the _MCH cookie (2=TT,3=Falcon,5=ARAnyM).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26085 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-06-22 20:57:49 +00:00
François Revol
35471ac53e - add fpu states
- add needed asm_offsets
- start of exception handling


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26073 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-06-22 01:36:52 +00:00
François Revol
04390361b5 - comment
- fix building arch_debug. Misses many regs still.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26042 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-06-20 02:22:26 +00:00
François Revol
a3dc7ef06c - some cpu and platform fixes.
- we'll just use decimal chip number (68030, ...) to identify cpu, fpu, and mmu for simplicity.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26041 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-06-20 02:11:45 +00:00
François Revol
9f0d1cf39d Remove PAGE_SIZE define for ppc and m68k from kernel private headers. It's not needed there and should be in public header anyway.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25921 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-06-11 01:16:48 +00:00
Stefano Ceccherini
fa827b37fc took the liberty to add this to the buiild and fix compilation :)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25774 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-06-03 05:02:59 +00:00
Stefano Ceccherini
54d9d37f9d Added patch by Dustin Howett: header with HPET definitions and (empty)
file for hpet implementation. Not yet added to the build.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25773 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-06-03 04:37:18 +00:00
Axel Dörfler
9f16184577 Patch by Jan Klötzke with minor changes by myself:
* Use vm86 mode to call the VESA BIOS to do the actual mode switching by
  providing an ioctl in the vesa driver.
* Fix vm86.h.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25680 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-28 10:48:01 +00:00
Axel Dörfler
15173df4e9 Last patch of the vm86 patch series from Jan Klötzke - thanks!:
* The new function vm86_do_int(struct vm86_state *state, uint8 vec) provides a
  facility to call BIOS interupt handlers. The function must only be called from
  a user thread context because the lower 1MB of the address space is used.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25610 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-22 13:54:28 +00:00
Axel Dörfler
bb107c4e29 Patch by Jan Klötzke:
* In vm86 mode CS will have arbitrary values so we check for both USER_CODE_SEG
  and the VM flag in EFLAGS. This is also done when entering interrupt gates.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25607 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-22 11:59:47 +00:00
François Revol
e2a938c274 Add define for the kernel area to ppc & m68k. They still don't initialize TLS though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25584 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-20 21:28:32 +00:00
Ingo Weinhold
6b202f4e3d * Introduced new header directory headers/private/system which is supposed
to contain headers shared by kernel and userland (mainly libroot).
* Moved quite a few private kernel headers to the new location. Split
  several kernel headers into a shared part and one that is still kernel
  private. Adjusted all affected Jamfiles and source in the standard x86
  build accordingly. The build for other architectures and for test code
  may be broken.
* Quite a bit of userland code still includes private kernel headers.
  Mostly those are <util/*> headers. The ones that aren't strictly
  kernel-only should be moved to some other place (maybe
  headers/private/shared/util).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25486 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-14 03:55:16 +00:00
Ingo Weinhold
d648afb8d7 * For each userland team the kernel creates an area in the userland
address space that is fully locked and marked B_KERNEL_AREA. It can
  thus be accessed by the kernel without additional checks.
* For each userland thread we do create a user_thread structure in that
  area. The structure is accessible from userland via TLS, using the
  private get_user_thread() function.
* Introduced private userland functions [un]defer_signals(). They can be
  used to cheaply disable/re-enable signal delivery. They use the
  user_thread::defer_signals/pending_signals fields which are
  checked/updated by the kernel.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25451 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-11 16:25:35 +00:00
Axel Dörfler
7cbf8fdd5a First part of the vm86 work by Jan Klötzke:
* Allow userland teams to create areas below 1 MB when requested specifically.
* Note, this is a temporary solution - see the comments in the code.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25358 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-07 21:21:43 +00:00
Ingo Weinhold
4dd0a2c7b6 Added arch_debug_get_stack_trace() that can be used to get a stack trace
(the list of return addresses) for the current stack.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25204 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-04-27 02:54:27 +00:00
François Revol
807cf76df0 memory barrier functions available for drivers.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25183 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-04-26 15:18:04 +00:00
Axel Dörfler
758962ec3b * Added arch_debug_contains_call() function that returns wether or not
a call chain contains a specific symbol (or address).
* Added a new KDL command "calling" that you can use to get a list of
  threads that have a specific function in their call chain.
* Removed extraneous white space.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24594 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-03-26 17:08:51 +00:00
Bruno G. Albuquerque
7a66a9b8e4 - Added support in system info for extended cpu family and model.
- Take extended family and model into account when generating the cpu
  type and revision.
- Added Intel Core 2 Extreme to the cpu list.

Please review.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24509 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-03-21 16:44:05 +00:00
Ingo Weinhold
4048494ce4 axeld + bonefish:
* Implemented automatic syscall restarts:
  - A syscall can indicate that it has been interrupted and can be
    restarted by setting a respective bit in thread::flags. It can
    store parameters it wants to be preserved for the restart in
    thread::syscall_restart::parameters. Another thread::flags bit
    indicates whether it has been restarted.
  - handle_signals() clears the restart flag, if the handled signal
    has a handler function installed and SA_RESTART is not set. Another
    thread flag (THREAD_FLAGS_DONT_RESTART_SYSCALL) can prevent syscalls
    from being restarted, even if they could be (not used yet, but we
    might want to use it in resume_thread(), so that we stay
    behaviorally compatible with BeOS).
  - The architecture specific syscall handler restarts the syscall, if
    the restart flag is set. Implemented for x86 only.
  - Added some support functions in the private <syscall_restart.h> to
    simplify the syscall restart code in the syscalls.
  - Adjusted all syscalls that can potentially be restarted accordingly.
  - _user_ioctl() sets new thread flag THREAD_FLAGS_IOCTL_SYSCALL while
    calling the underlying FS's/driver's hook, so that syscall restarts
    can also be supported there.
* thread_at_kernel_exit() invokes handle_signals() in a loop now, as
  long as the latter indicates that the thread shall be suspended, so
  that after waking up signals received in the meantime will be handled
  before the thread returns to userland. Adjusted handle_signals()
  accordingly -- when encountering a suspending signal we don't check
  for further signals.
* Fixed sigsuspend(): Suspending the thread and rescheduling doesn't
  result in the correct behavior. Instead we employ a temporary
  condition variable and interruptably wait on it. The POSIX test
  suite test passes, now.
* Made the switch_sem[_etc]() behavior on interruption consistent.
  Depending on when the signal arrived (before the call or when already
  waiting) the first semaphore would or wouldn't be released. Now we
  consistently release it.
* Refactored _user_{read,write}[v]() syscalls. Use a common function for
  either pair. The iovec version doesn't fail anymore, if anything could
  be read/written at all. It also checks whether a complete vector
  could be read/written, so that we won't skip data, if the underlying
  FS/driver couldn't read/write more ATM.
* Some refactoring in the x86 syscall handler: The int 99 and sysenter
  handlers use a common subroutine to avoid code duplication.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23983 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-02-17 15:48:30 +00:00
François Revol
82610ec8eb * get rid of ppc stuff
* possible types of exception frames


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23833 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-02-03 11:39:28 +00:00
François Revol
1778540a37 Cleanup
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23675 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-20 22:01:33 +00:00
François Revol
93b4dee849 * Add NeXT platform.
* Add platform methods for timer as it is platform dependent.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23673 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-20 21:30:59 +00:00
Jérôme Duval
3d239d7451 added missing include
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23664 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-20 17:21:01 +00:00
Jérôme Duval
ec1315c2ea added arch_commpage.h for the m68k arch (copied on x86)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23646 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-19 18:16:45 +00:00
Jérôme Duval
907f26dbb5 added a arch_commpage.h header for ppc, dunno if it needs to be changed
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23637 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-19 15:43:45 +00:00
Jérôme Duval
8164606d77 fix a warning
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23632 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-19 14:26:59 +00:00
François Revol
884c36167c Flag for LPSTOP availability.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23459 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-12 23:55:53 +00:00
Ingo Weinhold
34b3b26b3b Merged branch haiku/branches/developer/bonefish/optimization revision
23139 into trunk, with roughly the following changes (for details svn
log the branch):
* The int 99 syscall handler is now fully in assembly.
* Added a sysenter/sysexit handler and use it on Pentiums that support
  it (via commpage).
* Got rid of i386_handle_trap(). A bit of functionality was moved into
  the assembly handler which now uses a jump table to call C functions
  handling the respective interrupt.
* Some optimizations to get user debugger support code out of the
  interrupt handling path.
* Introduced a thread::flags fields which allows to skip handling of
  rare events (signals, user debug enabling/disabling) on the
  common interrupt handling path.
* Got rid of the explicit iframe stack. The iframes can still be
  retrieved by iterating through the stack frames.
* Made the commpage an architecture independent feature. It's used for
  the real time data stuff (instead of creating a separate area).
* The x86 CPU modules can now provide processor optimized versions for
  common functions (currently memcpy() only). They are used in the
  kernel and are provided to the userland via commpage entries.
* Introduced build system feature allowing easy use of C structure
  member offsets in assembly code.

Changes after merging:
* Fixed merge conflict in src/system/kernel/arch/x86/arch_debug.cpp
  (caused by refactoring and introduction of "call" debugger command).



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23370 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-11 00:36:44 +00:00
François Revol
a78864975b Move mmu definitions to a header so the bootloader can also use them.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23188 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-29 14:44:47 +00:00
François Revol
171a03646d Some more fields that helps compiling, but I'll have to sort that out later.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23187 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-29 13:01:14 +00:00
Michael Lotz
fd0986401e Ignore disabled local APICs.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23118 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-12 18:39:41 +00:00
Michael Lotz
f108445b5e * Initial support for ACPI tables to detect multiprocessor configurations
* ACPI is evaluated first as it also handles things like multi core or hyper threading setups
* Removed other (disabled) hyper threading code per the notes in the corresponding ToDo
* Limit the detected CPU count to 2 for now as I wasn't able to get it working in either emulation nor real hardware with more than 2 CPUs
* Added a reserved byte to the mp_config_table struct, it worked only by luck as the compiler did padding there to get to the same size

I can now boot my Core 2 Quad with two out of four processors active :-)

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23100 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-09 21:01:55 +00:00
François Revol
1a8a803ee1 WIP
Abstracted cpu and mmu version dependant stuff (compatibility where are you) into ops like func arrays.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22821 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-03 21:02:03 +00:00
François Revol
a790413138 More regs in m68k iframe.
Removed DOS CR.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22735 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-10-26 14:28:54 +00:00
François Revol
829748d89d Fix flushing the ATC, add flushing icache.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22709 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-10-25 02:24:38 +00:00
François Revol
ee75f8527b This should handle TLB flushing on m68k (it's called ATC though).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22706 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-10-25 00:45:01 +00:00
François Revol
8848d5972f Fix cast.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22705 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-10-25 00:44:09 +00:00
François Revol
d40bcaab8e m68k code.
We will use SRP (supervisor root pointer) register to hold the current thread pointer.
Its use by the pmmu is optional and I don't plan on using it.
There are 32 other bits left.
Wonder if weshouldn't use it for system_time() instead... will see, but there are no other usable regs.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22696 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-10-23 23:48:02 +00:00
François Revol
d09c112c3e - Yes we will have 64bit atomic funcs! Watch this PPC! :P
- m68k ELF reloc names.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22656 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-10-22 00:43:22 +00:00
François Revol
0b2adc3d8e Headers (unfinished) for an m68k port (yes I do know it's useless, it's just for the l33t factor).
Based on ppc/x86 headers from r22648.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22649 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-10-21 23:42:09 +00:00
Axel Dörfler
e6dc7903e4 * vm.h no longer includes vm_types.h - only those that actually need access
to the private VM types are including vm_types.h now.
* Removed vm_page, vm_area, vm_cache, and vm_address_space typedefs; it's
  cleaner this way, and the actual types are only used in C++ files now,
  anyway.
* And that caused changes in many files...
* Made commpage.h self-containing.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22329 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-09-27 12:21:33 +00:00
Ingo Weinhold
667f1eeb67 * Added support for setting (hardware) break-/watchpoints in the kernel.
Can be enabled by defining KERNEL_BREAKPOINTS in arch/user_debugger.h
  and will provide the arch_{set,clear}_kernel_{break,watch}point()
  function. Hitting a break-/watchpoint will throw the thread into KDL.
* Finally added a comment, what's the point of
  i386_reinit_user_debug_after_context_switch(), since I wonder every
  time I see it. Should be optimized aways soon.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22150 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-09-02 22:04:36 +00:00
Axel Dörfler
0b70ea5992 * Implemented sigaltstack() and set_signal_stack(), thus closing bug #1401.
* On exec() the new function thread_reset_for_exec() is called which clears the signals
  and cancels an eventually set alarm. Both things weren't done before...
* Some minor cleanups.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21989 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-08-16 18:01:47 +00:00
Ingo Weinhold
0274089508 Never include anything in an extern "C" block.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21607 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-07-15 00:35:10 +00:00
Axel Dörfler
8ca5764554 * Implemented APM generic syscall API to query the current power status.
* PowerStatus is now using this API when compiled for Haiku.
* Note, I'm not sure why yet, but running PowerStatus in the background
  crashes at least my laptop after some time.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21154 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-05-16 15:22:23 +00:00
Marcus Overhagen
a090257d09 Add volatile keyword to apic memory access, cleanup, add timeout to arch_smp_send_ici.
But this still doesn't help with bug #1018...


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20231 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-02-25 23:32:21 +00:00
Jérôme Duval
d4d9831990 merge both commpage.h into the private header
Travis, I hope this fits your needs :)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20173 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-02-20 00:21:45 +00:00
Travis Geiselbrecht
1cbf8f4b3c initial support for a commpage, which is a chunk of memory in high kernel space with user readonly permissions.
The first use is to let the kernel decide what the preferred syscall mechanism is at boot time and copy the
appropriate user space code there. Can be used for routines the kernel can decide best how to use (memcpy, some
timing routines, etc).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20161 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-02-19 00:32:44 +00:00
Travis Geiselbrecht
badc7b674e yet another fix for #1018, which has at this point blossomed into a reorg of how AP cpus are initialized.
the new cpuid stuff was apparently exacerbating an existing problem where various bits of low level
cpu code (specifically get_current_cpu) weren't really initialized before being used. Changed the
order to set up a fake set of threads to point each cpu at really early in boot to make sure that at
all points in code it can get the current 'thread' and thus the current cpu.
A probably better solution would be to have dr3 point to the current cpu which would then point to the 
current thread, but that has a race condition that would require an int disable, etc.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20160 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-02-19 00:11:24 +00:00
Travis Geiselbrecht
dfb5375d18 clean up TSS initialization.
Now two complete tss structures exist within the per-cpu structure. Instead
of having to create a seperate area per each one, initialize them in place.
Also, the old mechanism to getting all of the cpus to get initialized was 
subtly broken, but still managed to work. Now, just force all the cpus to
initialize at boot, which makes the actual swapping of esp0 somewhat simpler.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20131 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-02-14 06:24:59 +00:00
Travis Geiselbrecht
dcdc4f4b43 pulled over some stuff from newos:
at boot, per cpu, detect the cpu, pull down all the relevant cpuid bits and
save them into the per-cpu structure. Changed most of the code scattered here
and there that reads the cpuid to use a new api, x86_check_feature, which looks
at the saved bits.
Also changed the system_info stuff to read from these bits.
While i was at it, refreshed all the bits to be current.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20072 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-02-05 01:46:28 +00:00
Axel Dörfler
9ecaa867f7 Applied patch by Vasilis Kaoutsis: now checks for the MSR feature as well; obviously
some Pentium 200 MMX pretend to support MTRRs.
This should fix bug #553.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19899 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-01-22 14:45:50 +00:00
Axel Dörfler
fa4858af26 Didn't notice that x86_enter_userspace() also copied the thread entry's arguments to
the userland stack in an unsafe way - moved that stuff to arch_thread_enter_userspace(), too.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19778 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-01-12 20:40:39 +00:00
Axel Dörfler
8fc075ac5c * There was no reason to copy the "userland calls exit_thread()" stub with interrupts
turned off - accessing userland memory. Now, arch_thread_enter_userspace() does that
  job, and as a result, may also fail.
* dump_thread() now directly prints the info of the current thread when used without
  argument (rather than iterating the thread list to look for the current thread).
* If arch_thread_init_tls() fails upon thread creation, the function will now return
  an error.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19775 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-01-12 18:26:32 +00:00
Axel Dörfler
7ed5e61cdb arch_thread_init_tls() now accesses user memory safely, and therefore could now
fail.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19768 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-01-11 18:21:35 +00:00
Axel Dörfler
cf1f73778d Fixed PPC boot loader build.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19061 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-10-13 12:10:55 +00:00
Axel Dörfler
d51ce54011 * Added the opportunity to add temporary debug interrupt handlers for
arch dependent code (they will be removed as soon as someone else
  asks for these interrupt lines).
* Added an interrupt driven keyboard handler to the kernel that uses
  this technique. As a result, you can now press F12 to enter the kernel
  debugger before the input_server has been started, and Control-Alt-Delete
  should reboot the system (actually I did not test the latter yet).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17806 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-06-12 22:24:53 +00:00
Michael Lotz
2a03240eb1 Reverted my last change as it turned out that the lazy FPU state handling was not SMP safe afterall and the performance gain is questionable. Maybe it'll be implemented correctly in the future. Sorry for any inconvenience this may have cost.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17272 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-04-29 22:10:04 +00:00
Michael Lotz
7eee76e65a Implemented lazy FPU state save/restore. In the end mostly ported from NewOS. SMP safe.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17251 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-04-27 22:02:48 +00:00
Axel Dörfler
f94b06f992 Implemented SSE2/3 support (tested with VLC).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16569 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-02 17:12:56 +00:00
Ingo Weinhold
f4b0f67cf6 Added [arch_]int_post_device_manager() which is invoked after
the device manager is initialized. For x86 it does nothing, but
for PPC it searches for a supported interrupt controller and
remembers it for later use.
arch_int_{enable,disable}_io_interrupt() are implemented as
well as handling of external exceptions (aka as I/O interrupts).
We'll see later how well that works.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16271 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-07 02:50:32 +00:00
Axel Dörfler
5da68569d0 The APM now successfully shuts down my IBM ThinkPad T40. It's still disabled
for more testing on other machines.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16136 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-29 15:51:33 +00:00
Axel Dörfler
afd6dfc8b4 Implemented first basic APM driver. Only tested with QEMU so far, that's why
it's currently disabled.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16120 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-28 18:11:20 +00:00
Ingo Weinhold
6cdd45a94b Added enum to PPCPlatform to identify the platform.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16099 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-26 14:59:16 +00:00
Ingo Weinhold
7afc16f059 * Fixed a bug regarding storing/restoring FPSCR in the interrupt
code. The stack pointer was not adjusted, hence we were
  overwriting the previous register value. But it looks like I
  missed to check in the arch_cpu.h with the iframe structure
  including the floating point registers anyway.
* Backported the ELF PPC relocation code from the boot loader to
  the kernel.
* Fixed the PPC version of arch_thread_switch_kstack_and_call().
  Apparently the signature had changed, but the assembly
  implementation was not adjusted accordingly.
* sc prints more registers now (LR, CR, CTR, XER,...).
* Fixed several occurences of not-working fault handlers.
  Apparently the compiler realized, that the "error" label was
  never jumped to (by the code it knew), and optimized the
  respective code away. Now we use a trick to make it think the
  error label might actually be jumped to. I wonder whether the
  x86 version has the same problem when being compiled with GCC4.
* Adopted the x86 page fault handling interrupt code.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15933 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-13 00:49:13 +00:00
Ingo Weinhold
fc1e671b53 Made C++ safe.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15911 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-11 14:36:43 +00:00
Axel Dörfler
ba61df6d0b Beginnings of APM support: we now connect to the APM BIOS in 32 bit protected mode.
We don't do anything with it yet, though, so the BIOS will probably ignore us since
we are supposed to poll for events.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15900 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-10 22:54:36 +00:00
Ingo Weinhold
6c678c57c7 * The exception vector offset is now also part of the iframe.
* Cloned iframe stack management from x86.
* Reimplemented arch_thread_{get,set}_current_thread(). The
  thread structure is stored in SPRG2. It is set to NULL in
  arch_cpu_preboot_init(), now. A non-null current thread
  causes all kinds of undesired behavior in early boot code.
* We establish the address space mappings we know from the
  Open Firmware as areas. At least those in kernel address
  space. The ones in userland address space are tougher.
  Fortunately on my Mac mini there aren't any save the
  boot_loader stack, which is not needed any longer anyway.
* Added stack trace support to the kernel debugger. Mostly
  cloned and adjusted the x86 code. Some bits are still
  missing, like stack traces for other threads.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15890 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-10 03:00:33 +00:00
Ingo Weinhold
7176dd57e5 Reworked the exception handling code. The former one ran into the
void after turning off BAT for the segment containing itself.
The monster macro for the exception vector code was not really
elegant besides being too long for the 32 byte performance
monitor exception slot. Furthermore wasting three of the SPRG*
registers as cheap scratch memory wasn't that nice either.

We now have a three-step approach: The exception vectors
themselves contain only five instructions which branch to common
code at the beginning of the same physical page. That one sets
up BAT for itself, turns address translation back on and jumps
into the kernel. There we turn off BAT again, dump an iframe,
and enter the actual exception handler (/dispatcher). Upon return
the registers are restored from the iframe and we get back to the
place where the exception occurred.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15881 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-09 03:30:52 +00:00
Ingo Weinhold
c9eb843c35 Added comment about the use of some special purpose registers.
Haven't found a better place yet.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15880 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-09 03:11:31 +00:00
Ingo Weinhold
262e0a636b We use the same strategy for computing the system time as on x86 now.
The time base conversion factor is the 32 bit value
  2^32 * 1000000 / time base frequency,
so the system time can be computed by
  system time = time base * conversion factor / 2^32.
The expression in system_time() looks more complicated now, but is
actually much faster (factor 2.5 on my Mac mini). I'm positively
surprised, how good the assembly looks, that GCC 4 generates. There's
not that much potential for optimization by hand-coding the function.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15863 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-07 23:05:56 +00:00
Ingo Weinhold
8baf8813c0 Added "shutdown" debugger command. Implemented arch_cpu_shutdown() for
PPC.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15862 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-07 22:49:43 +00:00
Ingo Weinhold
e55e1a0e66 Implemented the PPC specific RTC support. We search for an "rtc"
device in the Open Firmware implementation of boot loader and
pass its path to the kernel, where it's opened and used for
getting/setting the real time. The expensive atomic_*64() on PPC
32-bit make things a bit more complicated. Moreover, missing
64 bit multiplication and division instructions won't really
allow system_time() to be anywhere near as fast as on x86. :-/


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15837 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-04 04:55:04 +00:00
Ingo Weinhold
09bb4e9ac5 The real_time_data structure contains an architecture specific
substructure now (that's the only member actually). The system time
offset is therefore accessed via architecture specific accessor
functions.
Note, that this commit breaks the PPC build. Since I want to rename at
least one file I've already changed, I can't avoid that.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15835 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-04 02:17:59 +00:00
Ingo Weinhold
7afa713acb Reorganized the boot platform dependencies in the kernel a bit.
Basically the architecture specific code is now responsible to
init and make use of the platform specific code, now. The reason
being that we have only one kernel per platform and thus cannot
decide at compile time, which platform to use (if any).
The PPC implementation features an abstract base class PPCPlatform
(implemented for all supported platforms) through which platform
support is provided.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15824 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-03 16:26:39 +00:00
Ingo Weinhold
716a16ce61 * Find out a few interesting information about the system (like CPU,
bus, and time base frequency) in the PPC boot loader, and propagate
  them to the kernel via kernel_args.
* Now we use the correct time base frequency for timer calculations.
* Implemented PPC specific system info stuff. Added a few PPC CPU
  types to <OS.h>.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15817 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-03 13:30:23 +00:00
Ingo Weinhold
c8cd524c67 * Refactored arch_vm_translation_map_init_post_area() a bit: Pulled out
remapping stuff into separate functions and made them available to
  others.
* Remap the exception handler space in arch_int_init_post_vm() into the
  kernel address space (same issue as with the page table).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15783 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-02 03:30:58 +00:00
Ingo Weinhold
a1bcf2c880 * The OF memory management callback is now set in arch_mmu_init().
According to the spec we need to set it before taking over the MMU,
  but we can't call it before arch_mmu_init(), since we need the OF
  to allocate the page table. So we do it after we have allocated
  the new page table.
* Added PPC specific kernel_args: The virtual address ranges we want
  to keep in the kernel. We fill that in with the translations we
  find when initializing the MMU stuff. We remove the memory the
  boot loader occupies from those. Besides the stack for the boot
  loader only the OF stuff remains.
* arch_mmu_allocate() now starts to search at KERNEL_BASE for a free
  virtual address when no particular address is requested. This saves
  us further trouble in the kernel, since those allocations would
  need to be remapped otherwise.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15780 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-02 01:56:37 +00:00
Ingo Weinhold
10a83ac31f * Added tlbia() and tlbie() macros. Replaced ptesync() by ppc_sync();
the fact that I couldn't find ptesync in an otherwise more complete
  documentation I downloaded yesterday made me suspicious.
* arch_cpu_global_TLB_invalidate() uses tlbia now. The instruction is
  optional, but so is tlbie (how I understood it is that both exist,
  when the architecture implementation has a TLB). And the former loop
  looked just scary.
* Implemented arch_cpu_user_TLB_invalidate(). It does just the same as
  arch_cpu_global_TLB_invalidate().
* Some changes with respect to synchronization required on page table
  and segment register updates.
* Some more minor renaming. Pulled a new function
  remove_page_table_entry() out of unmap_tmap().
* In arch_vm_translation_map_init_post_area() we do now remap the page
  table into the kernel address space, if it was without before. The
  page table might actually be a good application for BAT, though.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15773 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-01 21:40:27 +00:00
Ingo Weinhold
7c8af51f81 Added ptesync().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15768 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-01 14:44:29 +00:00
Ingo Weinhold
8d99b63e92 Added missing PPC relocation type.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15752 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-30 19:49:42 +00:00
Ingo Weinhold
d0714598fd Fixed PPC build.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15679 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-27 01:51:43 +00:00
Axel Dörfler
79f73dbc56 * vm_page::offset is now called cache_offset and is now an uint32 instead of off_t;
this saves 4 bytes per page. To compensate the loss of bytes, the offset is now
  stored in page size units, that's enough to address 2^44 or 16 TB (which is now
  the maximal supported file size!).
* Renamed vm_page::ppn to physical_page_number.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15637 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-21 12:38:31 +00:00
Axel Dörfler
35cf51550c Replaced arch/thread_struct.h with arch/thread_types.h, and renamed
arch/*/thread_struct.h to arch_thread_types.h, so that it can directly
be included without having to specify the architecure.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15616 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-20 16:07:27 +00:00
Axel Dörfler
7d7f4675bb * Added some cpuid eax == 1 feature definitions to arch_cpu.h
* Renamed IA32_MTR_WRITE_COMBINED to IA32_MTR_WRITE_COMBINING.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15559 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-16 12:25:49 +00:00
Axel Dörfler
e0e9a3e69f * We now support the global page feature of x86 processors that prevents
kernel TLBs from being flushed on context switch.
* new arch_cpu_user_TLB_invalidate() that now does what arch_cpu_global_TLB_invalidate()
  did before.
* arch_cpu_global_TLB_invalidate() will now flush all TLBs, even those from the
  kernel.
* some cleanups.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15535 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-14 17:07:37 +00:00
Axel Dörfler
484c80abd0 * Added missing prototypes for get_eflags() and set_eflags() to arch_system_info.h
* The boot loader now checks the CPU for the cpuid and rdtsc features, which we
  currently both rely on.
* Removed old and no longer used stage2_priv.h header


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15534 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-14 10:43:28 +00:00
Axel Dörfler
51a3c450be The short story: we now have MTRR support on Intel and AMD CPUs (the latter
has not yet been tested, though - I'll do this after this commit):
* Removed the arch_memory_type stuff from vm_area; since there are only 8 memory
  ranges on x86, it's simply overkill. The MTRR code now remembers the area ID
  and finds the MTRR that way (it could also iterate over the existing MTRRs).
* Introduced some post_modules() init functions.
* If the other x86 CPUs out there don't differ a lot, MTRR functionality might
  be put back into the kernel.
* x86_write_msr() was broken, it wrote the 64 bit number with the 32 bit words
  switched - it took me some time (and lots of #GPs) to figure that one out.
* Removed the macro read_ebp() and introduced a function x86_read_ebp()
  (it's not really a time critical call).
* Followed the Intel docs on how to change MTRRs (symmetrically on all CPUs
  with caches turned off).
* Asking for memory types will automatically change the requested length to
  a power of two - note that BeOS seems to behave in the same, although that's
  not really very clean.
* fixed MTRRs are ignored for now - we should make sure at least, though,
  that they are identical on all CPUs (or turn them off, even though I'd
  prefer the BIOS stuff to be uncacheable, which we don't enforce yet, though).



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15528 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-13 16:34:29 +00:00
Axel Dörfler
d49423aea3 Added a wbinvd() macro.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15526 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-13 01:49:44 +00:00
Axel Dörfler
2ed21b8525 Some work in progress of the MTRR support. Shouldn't do any harm yet :-)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15525 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-13 00:06:52 +00:00
Axel Dörfler
97ec781e94 Added (empty) memory type functions to the PPC port.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15521 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-12 17:13:15 +00:00
Axel Dörfler
7c0a93573b Preparation for MTRR support, code is completely untested, though.
The CPU specific MTRR code will be in modules.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15520 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-12 17:04:36 +00:00
Axel Dörfler
7b7c38a2a7 The "where" or "sc" command now switches the page directory to the specified thread
to be able to follow the stack trace into userland.
No symbols there, yet, though.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14697 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-11-04 15:58:04 +00:00
Ingo Weinhold
338b8dc301 Merged changes from branch build_system_redesign at revision 14573.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14574 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-29 16:27:43 +00:00
Axel Dörfler
90ce9e8305 Added calls to read and write the MSR, the machine state register.
Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14537 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-26 23:39:38 +00:00
Axel Dörfler
8fcd6b8e61 * renamed smp_boot.c to smp.cpp
* there is now a "Disable Hyper-Threading" safemode in the boot loader
* the SMP & HT menu items are now added in smp.cpp - and are only added
  if the system supports one of them.
* more cleanup to smp_apic.h
* removed cpuid() from the boot loader's support.S - instead, it will now
  use the one from the kernel.
* added a very weak HT detection: if the MP config only listed one CPU,
  and this CPU supports HT, we enable the other logic processor manually -
  as this currently doesn't work, it's disabled, though.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14536 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-26 22:57:13 +00:00
Axel Dörfler
fde12d6407 Some cleanup: renamed the mp_ext_* structures to mp_base_* as they are
part of the base table, not the extended table.
Renamed some structure fields, variables to be clearer and nicer to read.
Removed some unused stuff.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14502 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-24 21:37:40 +00:00
Axel Dörfler
0c67510ae1 Enabled SMP detection again - since it's very likely that it doesn't work on
your system, I've also added a "Disable SMP" safemode option. The NO_SMP
define is still there, and will be removed once SMP works flawlessly.
Prints out infos about the interrupt entries in the MP config.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14499 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-24 19:43:50 +00:00
Axel Dörfler
3d5ecf962c Minor cleanup, no functional change.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14472 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-22 16:53:49 +00:00
Ingo Weinhold
d08379a80b * Now we deal with all x86 exceptions, i.e. we no longer panic() when a
user application performs a division by zero or causes a general
  protection fault. For some exceptions (e.g. machine check) I wasn't
  quite sure whether they can be caused by user apps at all, so we panic()
  in those cases. Wouldn't harm, if someone more knowledgable would check
  this, though.
* Removed the unused fault handling stuff, respectively moved the little
  that was used into x86/arch_int.c.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13795 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-07-21 23:47:08 +00:00