architectures), truncate them intelligently instead.
The truncation is done centralized in vnode_pager.c.
This prevents from wrap-over effects when parts of large (>2^32 byte) files
are mmapped.
Don't allow to mmap above the numerical range of vm_offset_t.
This is considered a temporary solution until the vm system handles the
object sizes/offsets more cleanly.
("filename" must be processed by parsebootfile() first).
Being here:
- remove the special "#ifdef MATTHIAS" mainloop
- make some "booting..." output match reality
- print '\n' and '\b' more controlled
the pc532/dev/ncr.c-inspired changes; in particular, wait for previous
transfer to complete before starting another, as we used to do. Retain
splbio() protection and simplified sbc_pdma_in().
identical to the previous incarnation.
- Update using m68k asm.h macros
- Move initialization towards the front of the file
- Rename mac68k_buserr_addr to m68k_fault_addr
- Reorganize trap 15 handler, similar in structure to -- though not as
complete as -- the hp300 version
- Reorganize doboot() for easier integration of external cache, and
make room for the latter (#ifdef __notyet__)
- General garbage collection of unused code/data
_buserr point to the 68020/030 buserr code _only_. This has broken access
error handling in the 060 support code.
This is repaired by jumping to _buserr60 from the 060SP, and by providing
a _buserr60 label identical to the _buserr in the unchanged m68k ports
using the 68060.
permission has in VFS; execute permission permission on a directory is ignored
by AmigaDOS: when translating permissions from AmigaDOS to VFS, set up VFS
execute permission for AmigaDOS-readable directories.
Fixes PR kern/3787 from Michael van Elst <mlelstv@serpens.swb.de>.
socket names:
- In unp_setsockaddr() and unp_setpeeraddr(), if the socket name can't
fit into a single mbuf, allocate enough external storage space to
hold it.
- In unp_bind() and unp_connect(), perform a similar operation, but allocate
one extra byte, and ensure that the pathname is nul-terminated.
Many thanks to enami tsugutomo <enami@cv.sony.co.jp> for the sanity
checking.
- Add a comment describing my feelings about this interface, in general.
- Remove the COMPAT_OLDSOCK length hack. Instead, if the socket argument
is too long to fit in an mbuf, allocate enough external storage to
hold it.
- If the socket argument is a sockaddr, don't allow the length to be
greater than 255, as that would overflow sa_len.
Many thanks to enami tsugutomo <enami@cv.sony.co.jp> for his sanity checking.
the 'a' partition. Sanity checked by thorpej.
This, incidently, may have been causing user errors in initializing
new disks, as described in (now closed) pr-2729 from Scott Reynolds,
because users typically don't try to edit their c partitions to be
"correct".
the format modifer. Reported by and suggested fix from Daniel G. Pouzzner
in PR #2633. Final fix is slightly different now that we support the %q
modifier. This fix also includes the equivalent fix for sprintf().
is no hardware support for single-stepping):
- Fix branch prediction and delay slot computation (for the MIPS).
- Correctly deal with branch taken vs. branch not taken cases, and
self-branches.
- General cleanup, including types botches.
Partially from Mach 3, with a bunch of cleanup work by me.
formats in DDB:
- Reverse the sense of the symbol format #ifdef... i.e. instead of
"#ifndef DB_NO_AOUT", use "#ifdef DB_AOUT_SYMBOLS". This is pulled
in from <machine/db_machdep.h>.
- Change the signature of X_db_sym_init(). Instead of int * and char *,
it now takes void *'s for the start and end of the symbol table.
- In X_db_sym_init(), check that the pointer to the beginning of
the symbol table is aligned.
- X_db_symbol_values() now takes a "db_symtab_t *symtab" argument.
object collapse (DONE), machine-dependent hook for virtual memory allocation
(DONE - PMAP_PREFER()), and better coherency between page and buffer
caches (A LITTLE BETTER - we sync up the vnode pager in the sync(2)
system call now).
Solfrank. Rationale: We want to minimize the debugger's dependency
on other parts of the system.
To avoid namespace clashes, prepent MD5 names with "ipkdb_" to make it
clear what the intent is.
This can happen during perfectly normal operation if:
(a) We are using DMA to select a target, and
(b) we are interrupted by another target reselecting us.
Per discussion with Paul Krannenburg.
(a) The interrupt is a RESEL interrupt, and
(b) our state is SELECTING.
This condition can occur in perfectly normal operation if we are using
DMA to select the target and we are interrupted by another target
reselecting us. Per discussion with Paul Krannenburg.
Every ccb locks 64k of memory for dma buffers.
Instead of AHA_CCB_MAX ccbs using 1MByte only sc_link.openings ccbs
per device are allocated. Thus we now use only 128KByte per device present.
with full pathname lookups if a public filehandle is used, and that
it translates the '%' escapes (URL-style) in the same case. Also,
make nfsrv_fhtovp convert the public filehandle to the vp of the
publicly exported filesystem, as stored in the nfs_pub structure.
a request on the public filehandle. Extend the lookup operation to
support WebNFS, including index file support (URL style). Yucky, it's
optional in the spec, but Solaris 2.6 will support it, so..
- Disallow < 1 values for SO_SNDBUF, SO_RCVBUF, SO_SNDLOWAT, and
SO_RCVLOWAT; return EINVAL if the user attempts to set <= 0.
Inspired by PR #3770, from Havard Eidnes <he@vader.runit.sintef.no>.
- For SO_SNDLOWAT and SO_RCVLOWAT, don't let the low-water mark get
set above the high-water mark. Behavior is now consistent with
BSD/OS: If such an attempt is made, silently truncate to the high-water
value.
use of mbuf external storage and increasing performance (by eliminating
an m_pullup() for clusters in the IP reassembly code).
Changes from Koji Imada <koji@math.human.nagoya-u.ac.jp>, in PR #3628
and #3480, with ever-so-slight integration changes by me.
- If the partition is already open, skip the open/close step. (Sync with
other disk drivers).
- foosize()'s return value is in DEV_BSIZE units; adjust the size obtained
from the disklabel accordingly.
- If the partition is already open, skip the open/close step. (Sync
with other disk drivers.)
- foosize()'s return value is in DEV_BSIZE units; adjust the size obtained
from the disklabel accordingly.
- Pass correct arguments to ofdopen() and ofdclose().
- If the partition was previously open, don't do the open/close steps.
(Sync with other disk drivers.)
- foosize()'s return value is in DEV_BSIZE units; adjust the size obtained
from the disklabel accordingly.
newly-exec()ed user-land process for the new dl*-capable crt0:
a0 stack pointer (points to onstack argc)
a1 rtld cleanup (filled in by dynamic loader)
a2 rtld object (filled in by dynamic loader)
a3 ps_strings
From Jason Thorpe (thorpej@nas.nasa.gov).
ktlbmiss on the kernel stack. It was showing the temporary SP, not the
original SP.
Add a display of the first few wired entries of the TLB so when the ktblmiss
occurs, the TLB entries mapping the kernel stack can be verified.
greater flexibility in its use. Additionally, add support for "geometry
emulation". This allows the "geometry" of the "disk" to be specified
at config time, providing near-perfect emulation of disklabel-less floppies,
CD-ROMs, etc., including non-512-byte sectors. If a geometry is not
specified at config time, a default based on 1M cylinders will be used.
clock rate for this board on Alpha/PCI systems. Under x86/PCI, the
board f/w will correctly tell you "I'm running at 60Mhz", so the code
that preserved that across a board reset (which would drop the chip
back to 40Mhz) worked fine. On the 8200, the chip was saying "I'm 40Mhz"-
which wasn't true. This turned out to be okay as long as you didn't have
any FAST or UltraFast targets- In fact, setting the chip to 40Mhz allowed
you to run up to 8Mhz SCSI. Unfortunately you die bigtime on the devices
that go faster than that. The fix here is to only use what the chip tells
you the clock rate is in the cases you don't really know (sbus is the
only case where this could be different, although with 66Mhz PCI coming up,
this may change).
* cpuregs.h:
rename remaining VMMACH_xxx TLB macros to MIPS_TLB_xxx.
Add compile-time MIPS3-only, compile-time MIPS1-only, and
runtime (both) definitions for number of TLB ASIDs (tlb pids)
and shift count to extract a TLB pid.
* locore.h:
Delete unused vector slot for indexed TLB writes.
mips1 and mips3 TLBs are different enough that we have
to break them out at the caller anyway.
* Add compile-time MIPS3-only andcompile-time MIPS1-only
macros to call locore functions directly by name.
Use the existing method table only if
* mips/mips_machdep.c, mips/trap.c, mips/pmap.c, pmax/machdep.c:
Use MIPS3_ or MIPS1_ specific names for TLB pids in
mips3 and mips1 specific code paths (e.g., creating the kernel stack
for process 0).
Add `options MIPS3' to pmax/conf/GENERIC.
Remove unused debug procedure I forgot to remove previously.
Consolidate the vm_page_free1() calls in pmap_release(). Duplicate code
was a result of the way I merged the MIPS3 support from the pica pmap.c.
Enhance the comment on flushing the cache when releasing the segmap pages,
and add a comment about the currently unused code to uncache pages in
pmap_enter_pv().
unsigned cause register wouldn't have worked.
Add missing ')' in trapdump that shows up when compiled with DEBUG.
Fix (unfix?) previous change to printf formats in mips3_dump_tlb: vad_to_pfn
is now consistant with single-CPU and merged-CPU support.
* cpuregs.h:
Delete unused VMMACH_ names (e.g., duplicates of PTE bits in pte.h).
Change remaining VMMACH_xxx names to MIPS1_xxx or MIPS3_xx.
Fold remaining compile-time definitions into a single #ifdef MIPS3.
* Use MIPS1_ names in locore_r2000.S, mips3_ names in locore_r4000.S
* Garbage-collect MachHitFlushDCache()
* psl.h:
use MIPS1_, MIPS3_ symbolic names for Cause register bits.
change _R3K to MIPS1_, _R4K to MIPS3. Conditionalize for mips1 only,
mips3 only, or when both are defined, use runtime CPUISMIPS3 test.
now be installed on any partition.
Allow PRIM_LOADSZ to be set in the Makefile.
This together allows to make bootable 720k floppys.
closes PR port-i386/3751
Remove cpu-specific routines from locore.S and add them to locore_r2000.S
and locore_r4000.S. Add entries in locore jump vector table for switch_exit()
and the cpu_switch() context resume.
Add offsets into the jump vector to genassym.cf for use in locore.S.
Remove cpu-specific routines from locore.S and add them to locore_r2000.S
and locore_r4000.S. Add entries in locore jump vector table for switch_exit()
and the cpu_switch() context resume.
Add offsets into the jump vector to genassym.cf for use in locore.S.
Use same cachesize variables for mips1 and mips3, and rename the variables
per Jonathan's request.
the stack frame when usermode interrupt occurs. The interrupt may have
modified the PC [such as sendsig()]. This got dropped with the stackframe
changes.
call for the board's memory space to be PCI_MAPREG_MEM_TYPE_32BIT_1M or
PCI_MAPREG_MEM_TYPE_32BIT depending on the board ID. Also, remove a
bogus extra argument to an interrupt-establishment-error printf. Problems
pointed out by Jarkko Torppa <torppa@cute.fi> in PR 3753, but fixed slightly
differently than he suggested.
(1) fix a printf format (%x to print int, not %lx).
(2) fix probe of 4th chip/16th channel (used to tell whether or not the
board is a 16- or 32-port board) by removing an incorrect offset so
that the code matched its comments. (!!!)
(3) fix storage of chip number in per-channel structure so that it actually
stores the chip number, rather than the chip offset. This allows the
driver to work with more than the first four channels (i.e. with chips
other than chip number 0, which happens to have an offset of zero). (!!!)
Remove old code now that the new version is working.
Correct typo for 16K cache (R4400).
Align the saved AT register location; seems to hang if not aligned on 8
byte boundry.
similar design and code by Jason Thorpe and Jonathan Stone.
NOTE: the kernel-stack-switching code and cacheflush() calls in
locore.S still use #ifdef MIPS3 and need more work.
mips/include/cpu.h:
Add CPUISMIPS3 for run-time tests of what CPU architecture level
we're running on.
mips/include/locore.h:
Add declarations of locore cache-size variables for ref/def toolchain.
mips/include/mips1_pte.h:
mips1 TLB bit definitions.
mips/include/mips3_pte.h:
mips3 TLB bit definitions.
mips/include/pte.h:
define accesor macros for TLB bits (e.g., mips_pg_m_bit(),
that expand to CPU constants if only one CPU arch is configured,
or to inline functions if both MIPS1 and MIPS3 are configured.
mips/mips/locore_r2000.S:
Use MIPS1_PG_xxx constants inside mips1-specific code.
mips/mips/locore_r4000.S:
Use MIPS3_PG_xxx constants inside mips3-specific code.
mips/mips/locore.S:
Use MIPS1_PG_xxx constants inside mips3-specific code.
Use MIPS1_PG_xxx constants inside mips1-specific code.
(Needs more work!)
mips/mips/{pmap.c,vm_machdep.c,trap.c}, pmax/pmax/machdep.c:
Use MIPS3_PG_xxx constants inside mips3-specific functions,
and MIPS1_PG_XXX inside mips1-specific code.
Otherwise, use mips_pg_XXX_bit() macros where they apply,
and use "if (CPUISMIPS3) { ... } else {... }" where they don't.
mips/mips/mips_machdep.c:
Import Michael Hitch's fixes from the pmax locore-init code
into mips_vector_init().
pmax/pmax/machdep.c:
Use generic mips_vector_init() locore vector-init function.
an 68060/68LC060, possibly switching on the 68060 FPU, instead of trusting
the value passed from the ROM OS to us by the bootblock.
Most 68060 boards, unlike the DraCo (which seems to have heavily patched OS
ROMs) don't set the AMIGA_68060 flag; instead, upon detecting an 68060, its
FPU is disabled to make the ROM scheduler work, and at a much later time (at
least, later than bootblock booting time), the "68060.library" installs the
Motorola 68060 software support, patches the scheduler for the 68060 FPU, and
re-enables the FPU.
Maybe this will be fixed one day, if Amiga International sells upgraded OS
ROMs which know about the 68060. Until then, and for legacy machines, this
kludge is needed if we want to boot a non-DraCo 68060.
Btw, thats why this is NOT in std.amiga, but in GENERIC; the DRACO
configuration doesn't need it (and I still plan to make std.draco go away).
- It was incorrect. A dev_t should _never_ be compared against
NULL, as 0 is a valid value (major 0, minor 0).
- The operator mave have _intentionally_ set dumpdev to "none"
(i.e. NODEV), and setting it the first time a VBLK swap device
is added would break the semantics.
setroot() deals with all dump device selection. Dumps and swap are now
in no way related.
* Finish new ARP (struct ethercom) changes.
Some references to sc_ac were left danglnig.
* Include if_dl.h and if_media.h.
* Delint printf() messages: int vs. long , int vs. pointer.
* Delete unused variables.
* add prototypes to <dma.h> for the per-device dma-setup functions.
* MachEmptyWriteBuffer() -> wbflush(). Also #include <bus.h>,
so that wbflush() expants to the locore callback vector entrypoint.
drochner