Commit Graph

572 Commits

Author SHA1 Message Date
Jake Burkholder
055ca86c52 These file are no longer used (moved to userland and/or merged into
pmap.c).
2002-07-31 16:23:27 +00:00
Jake Burkholder
da1416c80c These were repo-copied to have a .S extension. 2002-07-31 15:56:15 +00:00
Jake Burkholder
61f869600d Add definitions for statistical and high-resolution profiling. The calling
conventions for _mcount and __cyg_profile_func_enter are different, so
statistical profiling kernels build and link but don't actually work.
IWBNI one could tell gcc to only generate calls to the former.

Define uintfptr_t properly for userland, but not for the kernel (I hope).
2002-07-30 06:14:34 +00:00
Jake Burkholder
c465faf9d4 The data cache on UltraSPARC III is not directly mapped, so don't assert
that.  This breaks assumptions made by some of the cache flushing code,
but UltraSPARC III has different methods for invalidating cache lines
anyway.
2002-07-30 05:48:33 +00:00
Jake Burkholder
4cfeb177e8 Panic if the data cache has too many virtual colors (more than 2). 2002-07-30 04:19:07 +00:00
Jake Burkholder
7968e6d2b2 Use _ALIGN_DATA and _ALIGN_TEXT. 2002-07-30 02:27:24 +00:00
Mike Barcroft
49545b3891 Create a new header <machine/_stdint.h> for storing MD parts of
<stdint.h>.  Previously, parts were defined in <machine/ansi.h> and
<machine/limits.h>.  This resulted in two problems:
  (1) Defining macros in <machine/ansi.h> gets in the way of that
      header only defining types.
  (2) Defining C99 limits in <machine/limits.h> adds pollution to
      <limits.h>.
2002-07-29 17:41:23 +00:00
Jake Burkholder
55328d51ba Add routines needed for high resolution profiling. 2002-07-29 00:45:13 +00:00
Jake Burkholder
fa4a902a13 Add a symbol for btext. 2002-07-29 00:42:00 +00:00
Jake Burkholder
7cde6cc16c Remove a stale comment. 2002-07-29 00:40:48 +00:00
Jake Burkholder
edfdadb6c3 Use _ALIGN_TEXT. Implement __cyg_profile_func_enter and
__cyg_profile_func_exit for GUPROF.
2002-07-29 00:39:46 +00:00
Jake Burkholder
d40e229819 Add _ALIGN_DATA and _ALIGN_TEXT macros. 2002-07-29 00:38:07 +00:00
Jake Burkholder
45b84327f9 Remove some stuff that snuck in last commit. 2002-07-29 00:37:05 +00:00
Jake Burkholder
b44ba1a844 Fix a bug introduced in previous commit. Due to the interaction of the
direct physical mappings with virtual page colour, we need to flush the
data cache when a page changes colour.  I missed one case which broke
pipes.
2002-07-28 19:15:34 +00:00
Mike Barcroft
7a415ec906 Revert the previous delta; uintfptr_t needs to be available to
userland for libc/gmon to compile, so the typedef in <machine/types.h>
isn't good enough.  This is really ugly since we end up with the
actual value which uintfptr_t is typedef'd from, in multiple places.
This is bug for bug compatible with the other FreeBSD architectures.

Noticed by:	sparc64 tinderbox
2002-07-28 15:59:51 +00:00
Jake Burkholder
839b2e106a Add declarations for btext and etext. 2002-07-28 01:01:14 +00:00
Jake Burkholder
7d8a5be3ea uintfptr_t has moved to machine/types.h. 2002-07-27 23:36:51 +00:00
Jake Burkholder
30bbe52432 Implement a direct mapped address region, like alpha and ia64. This
basically maps all of physical memory 1:1 to a range of virtual addresses
outside of normal kva.  The advantage of doing this instead of accessing
phsyical addresses directly is that memory accesses will go through the
data cache, and will participate in the normal cache coherency algorithm
for invalidating lines in our own and in other cpus' data caches.  So
we don't have to flush the cache manually or send IPIs to do so on other
cpus.  Also, since the mappings never change, we don't have to flush them
from the tlb manually.
This makes pmap_copy_page and pmap_zero_page MP safe, allowing the idle
zero proc to run outside of giant.

Inspired by:	ia64
2002-07-27 21:57:38 +00:00
Mike Barcroft
601016470b Catch up to rev 1.339 of src/sys/conf/options (PCI_ENABLE_IO_MODES is
now a sysctl and is enabled by default).
2002-07-27 15:28:35 +00:00
Jake Burkholder
dab4349561 Remove the tlb argument to tlb_page_demap (itlb or dtlb), in order to better
match the pmap_invalidate api.
2002-07-26 15:54:04 +00:00
Matt Jacob
1936600631 Set interrupt clear pointer for SBus slots to point to correct spot. 2002-07-25 20:14:59 +00:00
Peter Wemm
b618108fff de-count pci 2002-07-23 06:38:47 +00:00
Peter Wemm
fc147d7fe9 Add explicit unit count on 'device pci' for ahc/ahd 2002-07-21 23:07:31 +00:00
Peter Wemm
3ebc124838 Infrastructure tweaks to allow having both an Elf32 and an Elf64 executable
handler in the kernel at the same time.  Also, allow for the
exec_new_vmspace() code to build a different sized vmspace depending on
the executable environment.  This is a big help for execing i386 binaries
on ia64.   The ELF exec code grows the ability to map partial pages when
there is a page size difference, eg: emulating 4K pages on 8K or 16K
hardware pages.

Flesh out the i386 emulation support for ia64.  At this point, the only
binary that I know of that fails is cvsup, because the cvsup runtime
tries to execute code in pages not marked executable.

Obtained from:  dfr (mostly, many tweaks from me).
2002-07-20 02:56:12 +00:00
John Baldwin
dde0429505 Various comment and minor style fixes. No actual content changes.
Inspired by:	bde
2002-07-16 18:20:17 +00:00
Thomas Moestl
f42d907165 When multiple IOMMUs are present in a system, use a single TSB for all
of them, and couple them by always performing all operations on all
present IOMMUs. This is required because with the current API there
is no way to determine on which bus a busdma operation is performed.

While being there, clean up the iommu code a bit.

This should be a step in the direction of allow some of larger machines
to work; tests have shown that there still seem to be problems left.
2002-07-16 18:17:03 +00:00
Thomas Moestl
1ab480b27b Add new UltraSPARC-III VIS II instructions. 2002-07-16 17:44:01 +00:00
Thomas Moestl
fe905bcb53 Add new LSU bits for UltraSPARC-III. 2002-07-16 16:24:03 +00:00
Thomas Moestl
63ebf186a7 Add ASI definitions of UltraSPARC-III (Cu) processors, and add some
previously missing US-I and II ones.
2002-07-16 16:22:25 +00:00
Alan Cox
9b973ca71f o Lock page queue accesses by vm_page_wire(). 2002-07-14 23:23:47 +00:00
Jake Burkholder
e32cbadc61 Try both upa-portid and portid properties when finding the module id of a
secondary cpu.  Its called portid on UltraSPARCIII machines.
2002-07-14 00:08:58 +00:00
Jake Burkholder
1ff72decea Remove debug code. 2002-07-14 00:01:16 +00:00
Alan Cox
1f54526952 o Complete the locking of page queue accesses by vm_page_unwire().
o Assert that the page queues lock is held in vm_page_unwire().
 o Make vm_page_lock_queues() and vm_page_unlock_queues() visible
   to kernel loadable modules.
2002-07-13 20:55:21 +00:00
Jonathan Mini
08b38412c8 Add additional cred_free_thread() calls that I had missed the first time.
Pointed out by:	jhb
2002-07-13 04:36:50 +00:00
Jake Burkholder
d73b19ef9d Use a fixed address for KERNBASE, so it doesn't change if the size of KVA
is increased.  Its confusing for all the kernel addresses to change, and
doesn't serve much purpose as far as conserving address space.
2002-07-13 03:29:10 +00:00
Jake Burkholder
5d5d3157fb Identify UltraSPARC-III and UltraSPARC-III+ cpus. 2002-07-13 03:23:29 +00:00
John Baldwin
33d7ad1abe Set the thread state of the newly chosen to run thread to TDS_RUNNING in
choosethread() in MI C code instead of doing it in in assembly in all the
various cpu_switch() functions.  This fixes problems on ia64 and sparc64.

Reviewed by:	julian, peter, benno
Tested on:	i386, alpha, sparc64
2002-07-12 18:34:22 +00:00
Thomas Moestl
a935ed4fae When sending cache flushing IPIs, don't try to IPI the triggering CPU
itself; this causes undefined behaviour on UltraSPARCs. In particular,
the interrupt packet data words will not necessarily be delivered
correctly, which would result in a crash.
This bug also caused the cache-flushing work to be done twice on the
triggering CPU (when it did not cause crashes).

Reviewed by:	jake
2002-07-12 16:26:49 +00:00
John Baldwin
78dee2638a thread_exit() requires PROC_LOCK to be held, so lock it. 2002-07-11 22:13:33 +00:00
Mike Barcroft
f889202ba4 Remove label_t and physadr, which seem to have never been used in
FreeBSD.

Submitted by:	bde
2002-07-10 15:47:59 +00:00
Mike Barcroft
ba5fe51088 Move __offsetof() macro from <machine/ansi.h> to <sys/cdefs.h>. It's
hardly MD, since all our platforms share the same macro.  It's not
really compiler dependent either, but this helps in reducing
<machine/ansi.h> to only type definitions.
2002-07-08 16:43:35 +00:00
Peter Wemm
a58b3a6878 Add a special page zero entry point intended to be called via the single
threaded VM pagezero kthread outside of Giant.  For some platforms, this
is really easy since it can just use the direct mapped region.  For others,
IPI sending is involved or there are other issues, so grab Giant when
needed.

We still have preemption issues to deal with, but Alan Cox has an
interesting suggestion on how to minimize the problem on x86.

Use Luigi's hack for preserving the (lack of) priority.

Turn the idle zeroing back on since it can now actually do something useful
outside of Giant in many cases.
2002-07-08 04:24:26 +00:00
Peter Wemm
a136efe9b6 Collect all the (now equivalent) pmap_new_proc/pmap_dispose_proc/
pmap_swapin_proc/pmap_swapout_proc functions from the MD pmap code
and use a single equivalent MI version.  There are other cleanups
needed still.

While here, use the UMA zone hooks to keep a cache of preinitialized
proc structures handy, just like the thread system does.  This eliminates
one dependency on 'struct proc' being persistent even after being freed.
There are some comments about things that can be factored out into
ctor/dtor functions if it is worth it.  For now they are mostly just
doing statistics to get a feel of how it is working.
2002-07-07 23:05:27 +00:00
Peter Wemm
61695d7ac8 Fix (s/proc/thread/) some typos in two panic messages. 2002-07-07 22:50:41 +00:00
Peter Wemm
7b719ec324 Back out proc part of last commit. UMA manages the thread cache only, and
we just have to deal with the kstack when told to.  We do not have a
UMA-managed cache for the proc struct and its associated upage yet.  So,
go back to the old lazy mechanism.  Note that if UMA destroys pages that
used to contain proc structures, we'll lose the corresponding upage
forever.  (zones never did this - once a page was allocated, it stayed
attached to the proc zone forever)
2002-07-05 01:27:35 +00:00
Peter Wemm
0b306e55c6 Take a shot at implementing changes from i386/pmap.c rev 1.328-1.331. 2002-07-05 00:38:43 +00:00
Mike Barcroft
a19d429398 Since printf(3) now supports the `j' conversion specifier, use that
when printing intmax_t and uintmax_t.

Forgotten by:	mike
Noticed by:	bde
2002-06-30 05:48:03 +00:00
Robert Watson
006f19e4f2 Remove ALT_BREAK_TO_DEBUGGER. This was inconsistent (both in form
and function) with existing configuration choices.  Arguably if
ALT_BREAK_TO_DEBUGGER was present, so should have been
BREAK_TO_DEBUGGER.  Regardless, it broke the option sort order in
these kernel configuration files.

Requested by:	bde
2002-06-30 04:12:21 +00:00
Julian Elischer
8540497c50 Fix reverse ordering of locks. add a comment about locks on some platforms.
Submitted by:	jhb@freebsd.org
2002-06-29 23:58:50 +00:00
Julian Elischer
e602ba25fd Part 1 of KSE-III
The ability to schedule multiple threads per process
(one one cpu) by making ALL system calls optionally asynchronous.
to come: ia64 and power-pc patches, patches for gdb, test program (in tools)

Reviewed by:	Almost everyone who counts
	(at various times, peter, jhb, matt, alfred, mini, bernd,
	and a cast of thousands)

	NOTE: this is still Beta code, and contains lots of debugging stuff.
	expect slight instability in signals..
2002-06-29 17:26:22 +00:00