Commit Graph

307 Commits

Author SHA1 Message Date
Jake Burkholder
c8d87e81dd Make jmpbuf the same size as ucontext_t so that it can be passed
to sigreturn.

Obtained from:	alpha
2001-11-18 04:04:35 +00:00
Jake Burkholder
86f466074c 1. Split fp.h into fp.h and fsr.h so that the latter can be included
in asm files.
2. Temporarily cause subnormal operands in floating point operations
   to be treated as zeros so that comlpetion of the operation does not
   need to be emulated.
3. Catch fp_exception_other and correctly skip over the unfinished
   instruction, but basically ignore them.  Emulating the instruction
   is not yet supported.
4. Zero td_retval[1] as well in syscall().

Submitted by:	tmm (2, 3)
2001-11-18 04:00:22 +00:00
Jake Burkholder
d5a7911f4a 1. Remove kdbframe. Bad idea.
2. Add a TF_DONE macro, which fiddles a trapframe to make the retry on
   return from traps act like a done (advance past the trapping
   instruction instead of re-executing).
3. Flush the windows before entering the debugger, since it is no
   longer done in the breakpoint trap vector.
4. Print a warning if trace <pid> is attempted, it is not yet implemented.
5. Print traps better and decode system calls in traces.

Submitted by:	rwatson (4)
2001-11-18 03:41:12 +00:00
Jake Burkholder
bc40966754 Implement SET. Set execption.s 1.12.
Submitted by:	tmm
2001-11-18 03:31:01 +00:00
Jake Burkholder
cb67f0018f 1. Convert the tstate saved in the pcb to a pstate and test for PSTATE_PEF
to determine if a process is using floating point. in order to avoid
   sign extending a 13 bit immediate.
2. We don't need to context switch cwp anymore, it is better to just
   fiddle the save tstate on return from traps.  See exception.s 1.10
   and 1.12.
3. Completely remove pcb_cwp.
4. Implement vmapbuf, vunmapbuf and vm_fault_quick.  Completely remove
   TODOs from vm_machdep.c (yay!).

Submitted by:	tmm (1, 3, 4)
Obtained from:	existing archs (4)
2001-11-18 03:28:28 +00:00
Jake Burkholder
62d5557bb9 1. Remove bootinfo and just pass loader metadata to the kernel.
2. Remove mcontext.mc_sp, it is redundant.  Adjust spare space to make
   ucontext_t a nice size.
3. Raise pil in the debugger.

Submitted by:	tmm (3)
2001-11-18 03:02:53 +00:00
Jake Burkholder
4d5e57d87d 1. Implement ascopyto() and ascopyfrom() for copying to an alternate address
space from kernel space and from an alternate address space to kernel
   space.
2. Remove the unused and unprototyped physcopy() and physzero() and replace
   with the more versatile ascopy() and aszero(), inspired by the above.
   These can be used to copy and zero physical pages of memory without mapping
   them into kernel space first.
3. Use magic numbers for the offsets in the jmpbuf structure like other
   platforms.
4. Use SET.

Submitted by: 	tmm (1, 4)
2001-11-18 02:47:26 +00:00
Thomas Moestl
606d0094b2 Support for the UltraSpac DVMA MMU (IOMMU), ported from NetBSD. 2001-11-09 20:14:41 +00:00
Thomas Moestl
785fad4c2b Add some OpenFirmware bus support code and definitions. 2001-11-09 20:10:55 +00:00
Thomas Moestl
11dd9255e9 Add bus_space and busdma support for sparc64. 2001-11-09 20:05:53 +00:00
Thomas Moestl
d1994ead81 Add a nexus device for sparc64, which uses the OpenFirmware to attach UPA
devices (mostly host bridges) and handles interrupt allocation and setup.
2001-11-09 20:01:25 +00:00
Thomas Moestl
7478d2e8b2 Header file updates needed for the cache code: add/correct some ASI
definitions and add PAGE_*_MIN and -_MAX macros.
2001-11-09 19:37:52 +00:00
Thomas Moestl
3c78eb652c Add cache handling code for sparc64. 2001-11-09 19:12:06 +00:00
Thomas Moestl
9b3b51bcab Add code to emulate unimplemented (non-fp) instructions and to fixup
unaligned accesses, and instr.h, which contrains definitions for the
sparc64 instruction set (partly from NetBSD).
Make use of some definitions from instr.h in db_disasm.c.
2001-11-06 20:13:44 +00:00
Thomas Moestl
cd785cc1e7 Add optimized implementations of in_cksum_skip() and related functions
for sparc64.
2001-11-06 20:05:01 +00:00
Mike Barcroft
0ac2d551f2 o Add new header <sys/stdint.h>.
o Make <stdint.h> a symbolic link to <sys/stdint.h>.
o Move most of <sys/inttypes.h> into <sys/stdint.h>, as per C99.
o Remove <sys/inttypes.h>.
o Adjust includes in sys/types.h and boot/efi/include/ia64/efibind.h
  to reflect new location of integer types in <sys/stdint.h>.
o Remove previously symbolicly linked <inttypes.h>, instead create a
  new file.
o Add MD headers <machine/_inttypes.h> from NetBSD.
o Include <sys/stdint.h> in <inttypes.h>, as required by C99; and
  include <machine/_inttypes.h> in <inttypes.h>, to fill in the
  remaining requirements for <inttypes.h>.
o Add additional integer types in <machine/ansi.h> and
  <machine/limits.h> which are included via <sys/stdint.h>.

Partially obtain from:	NetBSD
Tested on:		alpha, i386
Discussed on:		freebsd-standards@bostonradio.org
Reviewed by:		bde, fenner, obrien, wollman
2001-11-02 18:05:43 +00:00
Jake Burkholder
06c4f91f00 Implement elf_reloc. This makes klds work.
Obtained from:	netbsd
2001-10-27 07:09:40 +00:00
Mike Barcroft
3a72286480 Remove funky right justification.
Pointed out by:	bde
2001-10-23 00:42:15 +00:00
Dag-Erling Smørgrav
1f04261973 [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.
2001-10-21 22:16:48 +00:00
Jake Burkholder
58a822cfc2 Fix get_cyclecount. Wrap in ifdef _KERNEL. 2001-10-20 18:51:10 +00:00
Jake Burkholder
e47e7481db Add a definition for normal kernel window state. 2001-10-20 17:08:33 +00:00
Jake Burkholder
6ef2d9a02d Parameterize the size of the kernel virtual address space on KVA_PAGES.
Don't use a hard coded address constant for the virtual address of the
kernel tsb.  Allocate kernel virtual address space for the kernel tsb
at runtime.
Remove unused parameter to pmap_bootstrap.
Adapt pmap.c to use KVA_PAGES.
Map the message buffer too.
Add some traces.
Implement pmap_protect.
2001-10-20 16:17:04 +00:00
Jake Burkholder
209cf80d43 Add support for physical address hardware watchpoints. 2001-10-20 16:04:39 +00:00
Jake Burkholder
6c3dcb9735 Change the stray count in struct intr_vector to a vector number that can
be used to index tables of counters.
Remove intr_dispatch() inline, it is implemented directly in tl*_intr now.
Count stray interrupts in a table of counters like intrcnt.
Disable interrupts briefly when setting up the interrupt vector table.
We must disable interrupts completely, not just raise the pil.
Pass pointers to the intr_vector structures rather than a vector number
to sched_ithd and intr_stray.
2001-10-20 16:03:41 +00:00
Jake Burkholder
44217f38a5 Remove traces that are loud and not that useful. Remove nested include
of ktr.h.
2001-10-20 15:58:31 +00:00
Jake Burkholder
c93b7ccb41 Remove an unused macro arg. 2001-10-20 15:57:39 +00:00
Jake Burkholder
4fd2757c37 Include a whole interrupt queue in struct globaldata instead of just a
pointer.  Minor style.
2001-10-20 15:57:09 +00:00
Jake Burkholder
3d6e05660a Add fields for boothowto and the kernel environment to boothowto. 2001-10-20 15:55:42 +00:00
David E. O'Brien
9f9bd82e15 Try two on the preprocessing logic.
Reviewed by:	ru
2001-10-19 20:01:01 +00:00
David E. O'Brien
4b16cf4f8a Blah, fix braino where ru had to remind me of proper preprocessor syntax.
Bad fingers, no cookie.
2001-10-19 19:17:11 +00:00
David E. O'Brien
e3ddd70789 My attempts at minimizing the number of #def's got me in trouble. 2001-10-18 16:07:21 +00:00
David E. O'Brien
4a3391b5a1 Add support for "__gnuc_va_list". Some overly "smart" libraries assume
the existence of the __gnuc_va_list type[*] because our compiler is GCC.

[*] __gnuc_va_list is defined in the GCC ginclude/stdarg.h replacement
headerwhich we don't use.
2001-10-18 00:27:39 +00:00
Thomas Moestl
84bcb99195 Add inthand_add() and inthand_remove() for use by the MD bus code and
some glue code.
2001-10-12 16:06:41 +00:00
Thomas Moestl
b6aaa482ef Save the floating point context to the right pcb in cpu_fork(), and add
an empty stub for is_physical_memory().
2001-10-12 15:58:48 +00:00
Thomas Moestl
c2f5c600c1 Make the NTOHL, NTOHS, HTONL and HTONS macros (which are nops on
sparc64) empty to avoid compiler warnings.
2001-10-12 15:55:45 +00:00
Thomas Moestl
4bc38523ec Add pmap_kenter_flags(), which is used by MD bus code that will be
committed soon, add a stub form pmap_kenter_temporary(), and implement
pmap_extract() and pmap_kextract().
2001-10-12 15:49:51 +00:00
Paul Saab
cbc89bfbfe Make MAXTSIZ, DFLDSIZ, MAXDSIZ, DFLSSIZ, MAXSSIZ, SGROWSIZ loader
tunable.

Reviewed by:	peter
MFC after:	2 weeks
2001-10-10 23:06:54 +00:00
Jake Burkholder
fc67f24833 Add contents to struct *reg. 2001-09-30 19:59:07 +00:00
Jake Burkholder
c4bc2cc714 Use %ver to identify the cpu instead of openfirmware.
Submitted by:	robert
2001-09-30 19:45:34 +00:00
Jake Burkholder
b34f88ee74 Add a place holder for PSTATE_SECURE, which detects if user code it
trying to set bad pstate bits.
2001-09-30 19:42:34 +00:00
Jake Burkholder
e5e8823f37 Split the low level trap code into trap, interrupt and syscall, its
easier and hopefully this code is done changing radically.

Don't use the mmu tlb register to address the kernel page table, nor
the 8k pointer register.  The hardware will do some of the page table
lookup by storing the the base address in an internal register and
calculating the address of the tte in the table.  However it is limited
to a 1 meg tsb, which only maps 512 megs.  The kernel page table only
has one level, so its easy to just do it by hand, which has the advantage
of supporting abitrary amounts of kvm and only costs a few more instructions.

Increase kvm to 1 gig now that its easy to do so and so we don't waste
most of a 4 meg page.

Fix some traces.  Fix more proc locking.

Call tsb_stte_promote if we get a soft fault on a mapping in the upper
levels of the tsb.  If there is an invalid or unreferenced mapping
in the primary tsb, it will be replaced.

Immediately fail for faults occuring in {f,s}uswintr.
2001-09-30 19:41:20 +00:00
Jake Burkholder
956856ae06 Move the kernel to end of the first 4 gigabytes of address space, so that
one 4 meg page can map both the kernel and the openfirmware mappings.
Add the openfirmware mappings to the kernel tsb so we can call the firmware
on the kernel trap table and access kernel memory normally.
Implement pmap_swapout_proc, pmap_swapin_proc, pmap_swapout_thread,
pmap_swapin_thread, pmap_activate, pmap_page_exists, and pmap_phys_address.
2001-09-30 19:03:22 +00:00
Jake Burkholder
954f0d930e Add a macro to get the context from a tte tag, not necesarily a whole
tte.  Remove the old inline.
2001-09-30 18:55:05 +00:00
Jake Burkholder
b71c31cefa Don't use types that require other headers. 2001-09-30 18:52:17 +00:00
Jake Burkholder
6df08a9593 Wrap hardware trap types in ifdef _kernel. 2001-09-30 18:51:18 +00:00
Jake Burkholder
18ef271232 Move the pcb the to the top of the kernel stack.
Add a guard page at the bottom of the kernel stack.  Its unclear how easy
it will be to detect these faults and do something useful.
Setup the registers on exec how the c runtime expects.
Implement various {fill,set}_*regs.
Fix proc locking.
2001-09-30 18:48:37 +00:00
Jake Burkholder
75c6786401 Don't overflow the ktr buffer <gulp>. 2001-09-30 18:42:56 +00:00
Jake Burkholder
c81f893d0c Implement PCPU_ADDR. Align functions on 16 bytes boundaries. 2001-09-30 18:41:57 +00:00
John Baldwin
fd54558a83 - If we ever do the per-cpu KTR stuff, the index won't be volatile as it
will be private to each CPU.
- Re-style(9) the globaldata structures.  There really needs to be a MI
  struct pcpu that has a MD struct mdpcpu member at some point.
2001-09-18 21:46:26 +00:00
Julian Elischer
b40ce4165d KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00
David E. O'Brien
bcc9d95fe0 style(9) the structure definitions. 2001-09-05 05:18:35 +00:00
David E. O'Brien
68b0bc4fa3 style(9) the structure names 2001-09-04 09:23:23 +00:00
Jake Burkholder
cc8b4c0416 Change tf_arg to uintptr_t from void * to reflect the fact that
non-pointer values may be passed in it.  Add appropriate casts.

The interrupt type is now passed in tf_arg instead tf_type.
2001-09-03 23:13:42 +00:00
Jake Burkholder
880a354a4a Implement a slightly different window spill/fill algorithm for dealing
with user windows in kernel mode.  We split the windows using %otherwin,
but instead of spilling user window directly to the pcb, we attempt to
spill to user space.  If this fails because a stack page is not resident
(or the stack is smashed), the fault handler at tl 2 will detect the
situation and resume at tl 1 again where recovery code can spill to the
pcb.  Any windows that have been saved to the pcb will be copied out to
the user stack on return from kernel mode.

Add a first stab at 32 bit window handling.  This uses much of the same
recovery code as above because the alignment of the stack pointer is used
to detect 32 bit code.  Attempting to spill a 32 bit window to a 64 bit
stack, or vice versa, will cause an alignment fault.  The recovery code
then changes the window state to vector to a 32 bit spill/fill handler
and retries the faulting instruction.

Add ktr traces in useful places during trap processing.

Adjust comments to reflect new code and add many more.
2001-09-03 23:10:45 +00:00
Jake Burkholder
ce1e7a70b9 Move the alternate global register stack to struct globaldata. 2001-09-03 22:58:05 +00:00
Jake Burkholder
8cf38f95f7 Add ktr traces. 2001-09-03 22:57:21 +00:00
Jake Burkholder
ccc64d13f3 Implement pv_bit_count which is used by pmap_ts_referenced.
Remove the modified tte bit and add a softwrite bit.  Mappings are only
writeable if they have been written to, thus in general modify just
duplicates the write bit.  The softwrite bit makes it easier to distinguish
mappings which should be writeable but are not yet modified.

Move the exec bit down one, it was being sign extended when used as an
immediate operand.

Use the lock bit to mean tsb page and remove the tsb bit.  These are the
only form of locked (tsb) entries we support and we need to conserve bits
where possible.

Implement pmap_copy_page and pmap_is_modified and friends.

Detect mappings that are being being upgraded from read-only to read-write
due to copy-on-write and update the write bit appropriately.

Make trap_mmu_fault do the right thing for protection faults, which is
necessary to implement copy on write correctly.  Also handle a bunch
more userland trap types and add ktr traces.
2001-09-03 22:55:12 +00:00
Jake Burkholder
9a0f54a4de Implement signals. 2001-09-03 22:41:40 +00:00
Jake Burkholder
a5ffa592c7 Move %ver definitions from pstate.h to ver.h. Add definitions for normal
kernel pstate values, which include a memory store order override.
2001-09-03 22:36:11 +00:00
Jake Burkholder
a78f8e2104 Add simple macros for tracing in assembler files. There are quite
a few places where we cannot even call a function, and these have
proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
Jake Burkholder
3d450a75c1 Use the correct copyrights. Note where most of this came from.
Requested by:	obrien
2001-09-03 22:27:23 +00:00
Jake Burkholder
e586bed159 Bump UPAGES to 4. The pcb can be rather large. 2001-09-03 22:19:36 +00:00
Jake Burkholder
4324ea045e mtx_savecrit is a pil level, not a pstate value, thus mtx_intr_enable
was not doing its thing.
2001-09-03 22:19:04 +00:00
Jake Burkholder
275e4fcf0a Add a flushw() macro. 2001-09-03 22:13:53 +00:00
Jake Burkholder
f8da586016 Add atomic_load and store functions without membars, fwiw. 2001-09-03 22:03:25 +00:00
Jake Burkholder
e19e5d8968 The definition for ASI_IMMU_TAG_TARGET_REG was wrong. Sort. 2001-09-03 22:02:15 +00:00
Mike Barcroft
03516cfeb0 o Remove some GCCisms in src/powerpc/include/endian.h.
o Unify <machine/endian.h>'s across all architectures.
o Make bswapXX() functions use a different spelling of u_int16_t and
  friends to reduce namespace pollution.  The bswapXX() functions
  don't actually exist, but we'll probably import these at some
  point.  Atleast one driver (if_de) depends on bswapXX() for big
  endian cases.
o Deprecate byteorder(3) prototypes from <sys/types.h>, these are
  now prototyped indirectly in <arpa/inet.h>.
o Deprecate in_addr_t and in_port_t typedefs in <sys/types.h>, these
  are now typedef'd in <arpa/inet.h>.
o Change byteorder(3) prototypes to use standards compliant uint32_t
  (spelled __uint32_t to reduce namespace pollution).
o Document new preferred headers and standards compliance.

Discussed with:	bde
PR:		29946
Reviewed by:	bmilekic
2001-08-30 00:04:19 +00:00
Jake Burkholder
0839a4e34b Rename fp_init_pcb to fp_init_proc. Set the FEF bit in fprs register;
according the SCD it should be set if no user trap handler in set.

Submitted by:	tmm
2001-08-20 23:56:19 +00:00
Jake Burkholder
ef3df3f0fe Add variables needed by hardware watchpoint support.
Submitted by:	tmm
2001-08-20 23:50:48 +00:00
Jake Burkholder
11676d49ba Add code for supporting hardware watch points.
Submitted by:	tmm
2001-08-20 23:50:08 +00:00
Jake Burkholder
bdb71a81f3 Add a system call trap type and syscall() call request handler.
Also add support for hardware watch point traps.

Submitted by:	tmm
2001-08-20 23:43:43 +00:00
Jake Burkholder
e2aceedd5a Add support for splitting the register windows on entry to the
kernel from usermode.  The remaining user windows are spilled
to the pcb as necessary.  The user land window fault handlers
fill directly from the pcb on return.
Add system call entry points.

Submitted by:	tmm
2001-08-20 23:40:31 +00:00
Jake Burkholder
b3ef0bf465 db_expr_t is signed. 2001-08-20 23:35:15 +00:00
Jake Burkholder
076f1c081a Add definitions for bits in condition code register and the load store
unit control registers.  Move tstate definitions to their own file.

Submitted by:	tmm
2001-08-20 23:34:46 +00:00
Jake Burkholder
2b31cfd3a0 Add a definition for the load store unit control register. 2001-08-20 23:31:41 +00:00
David E. O'Brien
c9ba45aa7a Sync globals.h up with the other platforms. There is still some cruft in
here, but now all the platforms have the same cruft.  Consistantly spell
the `struct globaldata *' "globalp".

Reviewed by:	peter
2001-08-20 21:29:16 +00:00
Jake Burkholder
f70bfa97c0 Spell ta 1 correctly as ta %xcc, 1. Use %pil for critical enter/exit
instead of pstate.ie.  Note that popc is not implemented in hardware
on certain ultras, so we can't use it for inline ffs (suck).
2001-08-18 18:07:37 +00:00
Jake Burkholder
cae71da765 Gcc 3.0 requires a .register pseudo-op for certain global registers when
used in assembly language.  Tell it to ignore the registers for now.
2001-08-18 18:05:24 +00:00
David E. O'Brien
589278dbae style(9) and make consistent across platforms 2001-08-16 09:29:35 +00:00
Andrey A. Chernov
2a54e09dff OFF_T -> OFF (more standard style) 2001-08-15 19:50:59 +00:00
Andrey A. Chernov
a6314641a4 Add OFF_T_MAX/OFF_T_MIN 2001-08-15 19:25:08 +00:00
David E. O'Brien
7a92dc6167 Sync up with the latest ansi.h in other platforms -- especially RUNE and
wchar bits.
2001-08-15 03:55:37 +00:00
Jake Burkholder
39f004ea89 Don't define ELF_RTLD_ADDR twice. 2001-08-14 03:09:19 +00:00
John Baldwin
688ebe120c - Close races with signals and other AST's being triggered while we are in
the process of exiting the kernel.  The ast() function now loops as long
  as the PS_ASTPENDING or PS_NEEDRESCHED flags are set.  It returns with
  preemption disabled so that any further AST's that arrive via an
  interrupt will be delayed until the low-level MD code returns to user
  mode.
- Use u_int's to store the tick counts for profiling purposes so that we
  do not need sched_lock just to read p_sticks.  This also closes a
  problem where the call to addupc_task() could screw up the arithmetic
  due to non-atomic reads of p_sticks.
- Axe need_proftick(), aston(), astoff(), astpending(), need_resched(),
  clear_resched(), and resched_wanted() in favor of direct bit operations
  on p_sflag.
- Fix up locking with sched_lock some.  In addupc_intr(), use sched_lock
  to ensure pr_addr and pr_ticks are updated atomically with setting
  PS_OWEUPC.  In ast() we clear pr_ticks atomically with clearing
  PS_OWEUPC.  We also do not grab the lock just to test a flag.
- Simplify the handling of Giant in ast() slightly.

Reviewed by:	bde (mostly)
2001-08-10 22:53:32 +00:00
Jake Burkholder
f02f55a8e3 Correct copyright language. 2001-08-10 04:51:19 +00:00
Jake Burkholder
416d9c00fa Add code to program the tick register and to setup its interrupt handler. 2001-08-10 04:49:33 +00:00
Jake Burkholder
228fa56391 Add early code to support interrupts. 2001-08-10 04:48:48 +00:00
Jake Burkholder
8a7de3c054 Add trap types for interrupts. Ad definitions to get the interrupt level
from the trap type.
2001-08-10 04:22:24 +00:00
Jake Burkholder
fa01c0ff70 1. Add code to demap pages from the tlb for user contexts.
2. Add a context argument to most functions, instead of extracting it from
   from the tte.

Submitted by:	tmm (1).
2001-08-10 04:21:44 +00:00
Jake Burkholder
0cb2d36969 Add fields that point to per-cpu interrupt data. 2001-08-10 04:18:48 +00:00
Jake Burkholder
db6c479810 Add a field to trapframe for saving the pil. 2001-08-10 04:18:13 +00:00
Jake Burkholder
c13c9cbf4f Add asis for interrupt registers. 2001-08-10 04:17:29 +00:00
David E. O'Brien
d410360643 Restore the proper copyright on this and remove the gratuitous changes from
sys/alpha/include/elf.h.
2001-08-09 02:24:05 +00:00
David E. O'Brien
73a4930297 The author isn't a [UC] Regents. Correct the copyright language. 2001-08-09 02:09:34 +00:00
Peter Wemm
2aca0c28d3 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.
2001-08-08 05:25:15 +00:00
Jake Burkholder
2de67fb944 The kernel runs at a much lower address now. 2001-08-06 02:24:52 +00:00
Jake Burkholder
2e74c0876f Fix macros for dealing with tte contexts.
Add tte bits for initializing tsbs and for specifying managed mappings.
2001-08-06 02:24:18 +00:00
Jake Burkholder
d15f935586 Oops. Last commit to tsb.h should have gone here.
Fix macros for eadling with tte contexts and add macros for sfsr fields.
2001-08-06 02:21:53 +00:00
Jake Burkholder
3af9da91bc Fix macros for setting and extracting the context field in ttes and
add macros for the fields in sfsr.
2001-08-06 02:20:36 +00:00
Jake Burkholder
8d94222282 Add a vm_object and page count to struct pmap for allocating tsb pages. 2001-08-06 02:19:52 +00:00
Thomas Moestl
491842fc97 Sigh. Add two files needed for the sparc64 fp contect switching code
that were forgotten in the last commit.

Pointy hat to: 	tmm
2001-08-05 03:47:02 +00:00
Thomas Moestl
e64b70af32 Add floating point context switching code for sparc64.
Reviewed by:	jake
2001-08-04 18:55:15 +00:00
Jake Burkholder
7cabcd9841 Move some code related to managing pv entries from the pmap module to
the pv module.  It works now that vtophys for sttes works.
2001-08-03 01:27:15 +00:00
Jake Burkholder
d741ca6bdb Fix a bug translating virtual translation table entry addresses to physical
addresses.  It helps to use the physical address that the virtual address
actually maps to (doh!).  Comment out some code that crashes.

Found independently by:	tmm
2001-08-03 01:21:24 +00:00
Jake Burkholder
1994658f04 Add an Elfhashelt type for sparc64. 2001-08-03 01:00:41 +00:00
Jake Burkholder
89bf8575ee Flesh out the sparc64 port considerably. This contains:
- mostly complete kernel pmap support, and tested but currently turned
  off userland pmap support
- low level assembly language trap, context switching and support code
- fully implemented atomic.h and supporting cpufunc.h
- some support for kernel debugging with ddb
- various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00
Jake Burkholder
98bb5304e1 Add skeleton machine dependent headers and c files for a port of freebsd
to a new architecture.  This is the base of the sparc64 port, but contains
limited machine dependent code, and can be used a base for ports.  Included
are:
- standard machine dependent headers, tweaked for a 64 bit, big endian
  architecture, including empty versions of all the machine dependent
  structures
- a machine independent atomic.h, which can be used until a port has
  support for interrupts and the operations really need to be atomic
- stub versions of all the machine dependent functions, which panic
  when called and print out the name of the function that needs to
  be implemented.  functions which are normally in assembly files are
  not included, but this should reduce the number of different undefined
  references on the first few compiles from hundreds to 5 or 6
Given minimal startup code and console support it should be trivial to
make this compile and run the first few sysinits on almost any architecture.

Requested by:   alfred, imp, jhb
2001-07-31 05:45:16 +00:00