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348 Commits

Author SHA1 Message Date
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
Doug Rabson
5577bd2bca Rework pmap so that it separates the PTE structure from the pv_entry 
structure. This makes it possible to pre-allocate PTEs for the kernel,
which is necessary for a reliable implementation of pmap_kenter(). This
also avoids wasting space (about 48 bytes per page) for kernel mappings
and user mappings of memory-mapped devices.

This also fixes a bug with the previous version where the implementation
required the pv_entry structure to be physically contiguous but did not
enforce this (the structure size was not a power of two). This meant
that the pv_entry free list was quickly corrupted as soon as the system
was even mildly loaded.
 2001-10-19 09:47:02 +00:00
Doug Rabson
ef826b3ca8 Shift the code which packs and unpacks instruction bundles out of DDB 
since it is useful for various emulations duties (e.g. unaligned trap
handling).
 2001-10-18 16:20:04 +00:00
Marcel Moolenaar
acddfcf3a2 Fix typos in previous commit: 
o  s/sys_narg/sy_narg/
o  s/SYS_MPSAFE/SYF_MPSAFE/
 2001-10-18 05:21:52 +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
John Baldwin
05724cdd08 - Small cleanups to the Giant handling in trap(). 
- Only release Giant in trap() if we locked it, otherwise we could release
  Giant in a kernel trap if we didn't get it for a page fault and the
  previous frame had grabbed the lock.
- Only get Giant for !MP safe syscalls.
 2001-10-17 22:04:45 +00:00
Matt Jacob
aaeac4f6c3 Make SCSI changer and SES devices standard in generic kernels. 
Reviewed by:	ken@kdm.org
 2001-10-16 22:22:58 +00:00
Doug Rabson
ebc26de418 Size the number of pv_entries we use to bootstrap the pv_entry allocator 
based on the size of physical memory. This should eliminate the tweaking
needed for larger memory configurations.
 2001-10-16 08:03:16 +00:00
Marcel Moolenaar
dea969f79f When compiling with SKI support, create the fake memory regions 
when either the memory descriptor in the bootinfo is NULL or
the descriptor count is 0.
 2001-10-15 07:58:27 +00:00
Doug Rabson
3b7ddc3170 Only the first eight arguments can possibly be in stacked registers. 2001-10-13 08:06:20 +00:00
Doug Rabson
cc6fae1156 Pass the correct trapframe pointer to fork_exit - sp is trapframe-16. 2001-10-12 11:50:09 +00:00
Doug Rabson
5b341f5baf If the faulting instruction is a cmpxchg, then isr.w and isr.r will both 
be set. We need to check isr.w before isr.r so that we can correctly
handle a cmpxchg to a copy-on-write page.

This fixes the hang-after-fork problem for dynamically linked programs.
 2001-10-12 11:49:11 +00:00
Doug Rabson
47806f084a Implement MCOUNT hook for assembler. Probably doesn't work right. 2001-10-11 13:35:31 +00:00
Doug Rabson
b4cc6db2df Implement mcount trampoline (untested). 2001-10-11 13:31:55 +00:00
Doug Rabson
f334c8bff7 * Change the calling convention for execve so that it conforms to normal 
C calling conventions. This allows crt1.c to be written nearly without
  any inline assembler.
* Initialise cpu_model[] so that the hw.model sysctl works properly.
 2001-10-11 12:31:50 +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
Doug Rabson
d91b6696b7 Add a definition for the ia64's special PLT_RESERVE entry in the _DYNAMIC 
section.
 2001-10-10 09:00:27 +00:00
Doug Rabson
7e3e8e556f Clarify a comment. 
Requested by: jhb
 2001-10-09 19:50:29 +00:00
Doug Rabson
f53482978c Don't include isavar.h - we don't need it. 2001-10-09 10:24:37 +00:00
Doug Rabson
ac0a5b09e0 Add a minimalist kernel config which can run inside SKI. 2001-10-09 10:14:06 +00:00
Doug Rabson
a3490d55d1 Make printtrap() more informative. 2001-10-08 20:21:04 +00:00
Doug Rabson
e4ef1eb797 Implement inline versions of ntohl etc. 2001-10-07 21:09:35 +00:00
Dag-Erling Smørgrav
3da3249106 Dissociate ptrace from procfs. 
Until now, the ptrace syscall was implemented as a wrapper that called
various functions in procfs depending on which ptrace operation was
requested.  Most of these functions were themselves wrappers around
procfs_{read,write}_{,db,fp}regs(), with only some extra error checks,
which weren't necessary in the ptrace case anyway.

This commit moves procfs_rwmem() from procfs_mem.c into sys_process.c
(renaming it to proc_rwmem() in the process), and implements ptrace()
directly in terms of procfs_{read,write}_{,db,fp}regs() instead of
having it fake up a struct uio and then call procfs_do{,db,fp}regs().

It also moves the prototypes for procfs_{read,write}_{,db,fp}regs()
and proc_rwmem() from proc.h to ptrace.h, and marks all procfs files
except procfs_machdep.c as "optional procfs" instead of "standard".
 2001-10-07 20:08:42 +00:00
Doug Rabson
e0e2fed358 * Use srlz.i to serialise changes to psr.ic 
* Don't enable psr.i at the same time as psr.dt and psr.ic

These changes improve stability considerably.
 2001-10-07 18:40:01 +00:00
Doug Rabson
ca11f4e176 Remove bogus include. 2001-10-07 14:20:01 +00:00
Doug Rabson
e2676403d8 Move console probes until after we set boothowto so that 'boot -h' works. 2001-10-06 16:06:48 +00:00
Doug Rabson
d0ad824d68 Assume round-to-nearest mode for floating point. 2001-10-06 15:57:22 +00:00
Doug Rabson
300634ffe0 Delete legacy pcib code - we can't possibly work without acpi on ia64. 2001-10-06 10:09:57 +00:00
Marcel Moolenaar
18819cbb5c o Change ia64_memory_address to explicitly take a u_int64_t 
o  Add memcpy_fromio, memcpy_io, memcpy_toio, memset_io,
   memsetw and memsetw_io. I'm not sure this is the right
   place for it, though.
 2001-10-06 09:31:43 +00:00
Doug Rabson
f1c1087a06 Add BOOTP support. 2001-10-05 19:03:01 +00:00
Doug Rabson
734047dd77 Fix some dependency violations (don't know why gas didn't catch this). 2001-10-05 19:02:21 +00:00
Doug Rabson
bff497f753 Use physical addresses, not virtual addresses when calling PHYS_TO_VM_PAGE. 2001-10-05 19:00:03 +00:00
Doug Rabson
8540504bac Eliminate some alpha craziness. 2001-10-05 18:59:02 +00:00
Doug Rabson
9e9ce1b861 In in_cksumdata, len must be a signed type. 2001-10-05 18:58:22 +00:00
Doug Rabson
34c5f03685 Low-level code for programming the I/O SAPIC. 2001-10-05 10:35:42 +00:00
Doug Rabson
7a7029581c Wire up most of the interrupt handling infrastructure. Not sure it works 
right yet but its enough for the ATA probe to work. The SCSI probes which
follow are broken though.
 2001-10-05 10:30:09 +00:00
Doug Rabson
ae0d75fe5f Fix typo which meant that we never actually found the ACPI 2.0 table. 2001-10-05 10:29:03 +00:00
Doug Rabson
c3a9c0057f Disable interrupts when we are in DDB. 2001-10-05 08:23:08 +00:00
Doug Rabson
c7521efc59 Add ia64_get_lid(). 2001-10-05 08:20:41 +00:00
Doug Rabson
02c76ceb97 Don't pretend the argument to clockattach is a device - it isn't. 2001-10-04 15:28:27 +00:00
Doug Rabson
a14927b550 * Don't pretend the object passed to clockattach is a device - it isn't. 
* Declare itc_frequency properly.
 2001-10-04 15:27:35 +00:00
Doug Rabson
377fa66e5e Use EFI (or some reasonable simulation) to read the RTC. 2001-10-04 15:26:05 +00:00
Doug Rabson
94d5f4bfd2 Fake the EFI runtime call GetTime. 2001-10-04 15:24:52 +00:00
Doug Rabson
1676303c5c Add low-level ACPI support code and make a start on parsing the ACPI 
interrupt information.
 2001-10-04 08:45:19 +00:00
Doug Rabson
712bc4a99a The encoding for the bus being passed to SAL was completely wrong. 2001-10-03 08:25:58 +00:00
Matt Jacob
22883e3c68 Fix problem where a user buffer outside of the area being tested 
will be corrupted.

PR:		29194
Obtained from:	Tor.Egge@fast.no
MFC after:	2 weeks
 2001-10-02 18:34:20 +00:00
Marcel Moolenaar
6b207c0e90 Remove redundant and misplaced "options DDB" line. 2001-10-02 06:18:23 +00:00
Doug Rabson
89dbc365be Support for SKI is now an option. 2001-09-29 11:45:33 +00:00
Doug Rabson
47d032e595 Make sio0 a console device. 2001-09-29 11:45:07 +00:00
Doug Rabson
f17bd83f5f Add a couple of arguments to ia64_init. I'll use them later to improve 
the method of passing bootinfo from the loader.
 2001-09-29 11:44:35 +00:00