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280 Commits

Author SHA1 Message Date
Olivier Houchard
8b64f2f5ad Don't assume pmap_update() will cpwait for us, pmap_update will disappear soon. 2005-01-10 22:41:08 +00:00
Warner Losh
d8315c79d9 Start all license statements with /*- 2005-01-05 21:58:49 +00:00
Alan Cox
1f70d62298 Modify pmap_enter_quick() so that it expects the page queues to be locked 
on entry and it assumes the responsibility for releasing the page queues
lock if it must sleep.

Remove a bogus comment from pmap_enter_quick().

Using the first change, modify vm_map_pmap_enter() so that the page queues
lock is acquired and released once, rather than each time that a page
is mapped.
 2004-12-23 20:16:11 +00:00
Olivier Houchard
e1e6b9d3c6 - The IQ80321 has a jumper which changes the PCI device id from 4 to 8 for the 
GigE controller, so handle this.
- Use the outbound window 0 if the PCI mem requested is in its range, instead
of inconditionally use the outbound window 1.
This should be enough to get FreeBSD/arm to work on the IQ80321 board as well.

Reported and tested by: Jia-Shiun Li <jiashiun at gmail dot com>
 2004-12-21 11:36:09 +00:00
Olivier Houchard
885dabe5f7 Update the StrongArm port to match the current code. 
- Implement arm_mask_irqs and arm_unmask_irqs
- Provide the available physical address range after pmap_bootstrap allocated
things, instead or before, or bad things happen.
 2004-12-18 17:58:49 +00:00
Olivier Houchard
31e3e209b1 Make sure gcc doesn't generate something such as swp r3, r4, [r3] for __swp, 
as it has unpredictable results.
 2004-12-18 17:43:01 +00:00
Alan Cox
85f5b24573 In the common case, pmap_enter_quick() completes without sleeping. 
In such cases, the busying of the page and the unlocking of the
containing object by vm_map_pmap_enter() and vm_fault_prefault() is
unnecessary overhead.  To eliminate this overhead, this change
modifies pmap_enter_quick() so that it expects the object to be locked
on entry and it assumes the responsibility for busying the page and
unlocking the object if it must sleep.  Note: alpha, amd64, i386 and
ia64 are the only implementations optimized by this change; arm,
powerpc, and sparc64 still conservatively busy the page and unlock the
object within every pmap_enter_quick() call.

Additionally, this change is the first case where we synchronize
access to the page's PG_BUSY flag and busy field using the containing
object's lock rather than the global page queues lock.  (Modifications
to the page's PG_BUSY flag and busy field have asserted both locks for
several weeks, enabling an incremental transition.)
 2004-12-15 19:55:05 +00:00
Olivier Houchard
44dd466610 Enable interrupts once the active ones have been masked. 2004-12-14 18:57:21 +00:00
Olivier Houchard
353d54aa83 Update the sp after popping the regs. 
This is a good candidate for the golden pointy hat awards.
 2004-12-14 18:45:05 +00:00
Olivier Houchard
eb64032876 Save a few more cycles in cpu_switch() and cpu_throw(). 2004-12-12 19:21:58 +00:00
Olivier Houchard
cb13ab5bd1 Fix style. 2004-12-11 23:56:03 +00:00
Olivier Houchard
6cf1dd4f37 Add entries to trace syscalls with KTR. 2004-12-11 23:54:03 +00:00
Olivier Houchard
fd4d461166 Fix compilation with INVARIANTS. 2004-12-11 14:46:52 +00:00
Olivier Houchard
84b30e2247 s/RETEQ/RETeq/. 2004-12-10 16:49:08 +00:00
Olivier Houchard
f4427f30f7 Include <sys/signalvar.h> for trapsignal(). 2004-12-07 17:39:42 +00:00
Olivier Houchard
79f40e185d Make sure to map the whole kernel into 1MB pages. Try to use the remaining 
memory for things such as the kernel stack.
 2004-12-05 22:48:04 +00:00
Olivier Houchard
f4deb15f08 Reactivate the use of the minidata cache. 2004-12-05 22:47:25 +00:00
Olivier Houchard
4090854334 Do not change the page directory and do not flush the TLB when switching to 
a kernel thread.
 2004-12-05 22:46:59 +00:00
Olivier Houchard
b62e66eb1f Remove an unused field from the struct pv_entry. 
While I'm there, fix style.
 2004-12-05 22:46:30 +00:00
Olivier Houchard
28ec399c5a Include <sys/signalvar.h> for trapsignal(). 2004-12-02 23:31:48 +00:00
David Schultz
6004362e66 Don't include sys/user.h merely for its side-effect of recursively 
including other headers.
 2004-11-27 06:51:39 +00:00
Olivier Houchard
a27952c1a9 Enable interrupts as soon as the pending interrupts have been masked. 2004-11-23 16:31:16 +00:00
Olivier Houchard
6054abc495 Use ns8250. 2004-11-23 16:30:50 +00:00
Olivier Houchard
b1ff74ebb3 Cleanup. 2004-11-21 19:41:27 +00:00
Olivier Houchard
7fc1bf0371 Set the frame pointer to 0 in fork_trampoline(). 2004-11-21 19:33:47 +00:00
Olivier Houchard
9ebe15a1d7 Implement breakpoints and single stepping on arm. 
Obtained from:	NetBSD
 2004-11-21 18:11:39 +00:00
Olivier Houchard
7b90b2998e Remove useless code. 2004-11-20 16:52:30 +00:00
Olivier Houchard
3488a2f7d9 Implement enough to be able to enter and leave DDB. 2004-11-20 16:52:10 +00:00
Olivier Houchard
579d53f4cf Get the kernel stack right now that the u-area is gone. 2004-11-20 16:51:32 +00:00
David Schultz
d305a6da98 Remove UAREA_PAGES and USPACE definitions. The definitions of 
USPACE_SVC_STACK_TOP, USPACE_SVC_STACK_BOTTOM, USPACE_UNDEF_STACK_TOP,
and USPACE_UNDEF_STACK_BOTTOM look wrong to me, so I'm leaving them
alone.

Reviewed by:	arch@
 2004-11-20 02:31:37 +00:00
David Schultz
837f4b104e Remove some references to U area here while trying not to break 
anything.  Someone with ARM hardware could do a lot more to untangle
this code.

Reviewed by:	arch@
 2004-11-20 02:31:23 +00:00
David Schultz
6484fde022 Remove references to U area and garbage collect includes. 
Reviewed by:	arch@
 2004-11-20 02:30:59 +00:00
David Schultz
11111b709f U areas are going away, so don't allocate one for process 0. 
Reviewed by:	arch@
 2004-11-20 02:29:25 +00:00
Olivier Houchard
a8a2a16a08 Increase cnt.v_syscall and cnt.v_trap when needed. 2004-11-20 00:55:57 +00:00
Olivier Houchard
0e425b6c47 Move KERNPHYSADDR and KERNVIRTADDR from std.i80321 to std.iq31244. 
Use the correct KERNPHYSADDR.
 2004-11-18 00:05:09 +00:00
Olivier Houchard
826a7f03c5 Simplify a bit bus_dmamap_load_buffer by removing the "first" parameter, use 
nseg == -1 instead.

Obtained from:	NetBSD
 2004-11-16 00:57:44 +00:00
Olivier Houchard
1101dd6d06 MFi386: 
- inlina bus_dmamap_load_buffer
- Directly pass the pmap to bus_dmamap_load_buffer, instead of the struct thread
 2004-11-15 23:59:28 +00:00
Olivier Houchard
5918fe42a0 Remove debugging printf. 2004-11-13 15:12:26 +00:00
Olivier Houchard
24c6f4b32a Don't forget to clear the PG_WRITEABLE flag when appropriate. 2004-11-13 14:54:31 +00:00
Olivier Houchard
4c44e1ec63 Use uma_prealloc() on the l2table_zone to prevent a LOR at startup. 2004-11-13 14:41:27 +00:00
Olivier Houchard
8e10380a9f Implement interrupt counting, so that vmstat -i work. 2004-11-12 21:49:05 +00:00
Olivier Houchard
ef7d17237a Don't forget to include opt_vm.h. 2004-11-10 22:11:08 +00:00
Olivier Houchard
9aeab9eabe Convert the IQ31244 code to use ARM32_NEW_VM_LAYOUT. 2004-11-10 22:09:39 +00:00
Olivier Houchard
b599237edb Invalidate the data cache in pmap_qremove() instead of in pmap_kenter(), 
and in pmap_enter_quick() instead of pmap_enter().
 2004-11-10 21:46:04 +00:00
Tom Rhodes
adcb844412 Remove __P here too. 
Ok'ed by:	cognet
 2004-11-10 01:33:42 +00:00
Olivier Houchard
2fd21813b0 Use the RET macro. 2004-11-09 16:47:47 +00:00
Olivier Houchard
5f2c6402db Import a RET macro, that will use bx if the arch supports it. 
Obtained from:	NetBSD
 2004-11-09 16:45:55 +00:00
Alan Cox
d3cb0d99e0 Introduce two new options, "CPU private" and "no wait", to sf_buf_alloc(). 
Change the spelling of the "catch" option to be consistent with the new
options.  Implement the "no wait" option.  An implementation of the "CPU
private" for i386 will be committed at a later date.
 2004-11-08 00:43:46 +00:00
Olivier Houchard
b720bb34f3 Add device mem in config files. 2004-11-07 23:02:15 +00:00
Olivier Houchard
e099742e25 Import md bits for mem(4) on arm. 
While I'm there, cleanup a bit pmap.h.
 2004-11-07 23:01:36 +00:00
Olivier Houchard
1b135a7e11 Remove useless code. 2004-11-07 16:51:33 +00:00
Olivier Houchard
432f5e3ab9 Disable interrupts for atomic_cmpset_32, this one is just not atomic. 
Don't export it to userland.
 2004-11-05 23:48:12 +00:00
Olivier Houchard
bd366a3cd4 Copy the syscall args in a tmp variable instead of directly using the 
trapframe, as it can be modified in the syscall.
Call thread_user_enter() when appropriate.
 2004-11-05 19:57:10 +00:00
Olivier Houchard
8ecf6f65d9 Save a few cycles in context switch. 
Update comments to reflect reality.
 2004-11-05 19:54:13 +00:00
Olivier Houchard
90f794aaaf If we're still running at the physical address, jump to the virtual address 
instead before calling initarm().
This removes the need to map virtual == physical in initarm().
 2004-11-05 19:52:55 +00:00
Olivier Houchard
321c47170e Be more verbose about cache capacities. 2004-11-05 19:51:23 +00:00
Olivier Houchard
d20a408be7 Implement casuptr. 2004-11-05 19:50:48 +00:00
Olivier Houchard
1214c18d4e Call pmap_pte_init_arm9 instead of pmap_pte_init_generic if 
ARM9_CACHE_WRITE_THROUGH is defined.
 2004-11-05 19:48:40 +00:00
Olivier Houchard
bd245b9bd4 In cpu_critical_fork_exit(), make sure to set td_md.md_critnest so that 
interrupts will be enabled.

Spotted out by:	jhb
 2004-11-05 18:29:45 +00:00
Olivier Houchard
6e91e74e11 Protect the function declarations with #ifdef _KERNEL. 2004-11-04 19:20:54 +00:00
Olivier Houchard
56c6c84155 Directly use __pcpu for PCPU_* instead of pcpup. 2004-11-04 19:19:44 +00:00
Olivier Houchard
27d97a6c49 Decrease KSTACK_PAGES and UAREA_PAGES. 2004-11-04 19:19:21 +00:00
Olivier Houchard
24e01b0c59 Use interrupts_disable() and interrupts_restore() as intr_disable() and 
intr_restore() instead of re-implement it.
 2004-11-04 19:18:50 +00:00
Olivier Houchard
dba13dd1d3 Don't barf if no CPU type is defined while compiling kernel modules. 2004-11-04 19:16:31 +00:00
Olivier Houchard
3ce6572f9f Implement get_cyclecount(). 2004-11-04 19:15:43 +00:00
Olivier Houchard
a61369085e Try to implement atomic operations using swp, instead of disabling interrupts. 2004-11-04 19:14:50 +00:00
Olivier Houchard
eeaa69102a Use casts to enforce the return type of bswap16() and bswap32(). 2004-11-04 19:07:28 +00:00
Olivier Houchard
4cc4c8f7fe Implement cpu_thread_siginfo() and set_mcontext(). 
Nuke getframe(), and choose which stack to use directly in sendsig().
 2004-11-04 19:04:30 +00:00
Olivier Houchard
b0db6a81d2 Implement cpu_set_upcall and cpu_set_upcall_kse. 
Calculate td_frame and td_pcb the right way in cpu_thread_setup.
 2004-11-04 18:59:02 +00:00
Olivier Houchard
8d0e9a52c6 Get kernel modules to work. 2004-11-04 18:48:52 +00:00
Andre Oppermann
32672ba88d Reduce annoying SCSI probing delay from 15 to 5 seconds in all GENRIC kernels. 
Discussed on:	-current
 2004-11-02 20:57:20 +00:00
John Baldwin
d39d4a6e64 - Change the ddb paging "support" to use a variable (db_lines_per_page) to 
control the number of lines per page rather than a constant.  The variable
  can be examined and changed in ddb as '$lines'.  Setting the variable to
  0 will effectively turn off paging.
- Change db_putchar() to force out pending whitespace before outputting
  newlines and carriage returns so that one can rub out content on the
  current line via '\r     \r' type strings.
- Change the simple pager to rub out the --More-- prompt explicitly when
  the routine exits.
- Add some aliases to the simple pager to make it more compatible with
  more(1): 'e' and 'j' do a single line.  'd' does half a page, and
  'f' does a full page.

MFC after:	1 month
Inspired by:	kris
 2004-11-01 22:15:15 +00:00
Olivier Houchard
99cf590376 We want to ignore BUS_DMASYNC_POSTWRITE, not BUS_DMASYNC_POSTREAD. 
Spotted out by:	mux
Pointy hat to:	cognet
 2004-10-21 11:59:33 +00:00
Olivier Houchard
9c2ac80375 Use a default MD_ROOT_SIZE of 65535. 2004-10-11 14:42:06 +00:00
Olivier Houchard
ed4dc69883 Use MD_ROOT_SIZE, instead of our own macro. 2004-10-11 14:41:38 +00:00
Olivier Houchard
74e9b5ed3b Add optimized version of the bswap macroes for constants if __OPTIMIZED__ is 
defined.
 2004-10-01 16:55:59 +00:00
Olivier Houchard
d60ea0a816 There's no need to turn on MALLOC_PROFILE by default. 2004-10-01 16:51:37 +00:00
Olivier Houchard
77ee40aac5 Calling fuword from fuword32 with bl and without returning after is really a bad 
idea.
Any way I get a customized CVS template with "Pointy hat to:	cognet"
pre-filled ?
 2004-09-28 14:39:26 +00:00
Olivier Houchard
022fb84224 Always invalidate the whole data cache in pmap_enter() for now. 
It should not be needed.
 2004-09-28 14:38:14 +00:00
Olivier Houchard
e462e1ba03 Remove dead code. 2004-09-28 14:37:39 +00:00
Olivier Houchard
4b7d15c6dc Add the config file for the IQ31244 board. 2004-09-23 22:55:00 +00:00
Olivier Houchard
f67baa4d6b Use the new KERNVIRTADDR and PHYSADDR options. 
Add KDB.
 2004-09-23 22:53:50 +00:00
Olivier Houchard
6052fa47a9 Import partial support for the IQ31244 eval board (i80321 CPU). IQ80321 might 
work out of the box too, but I have no hardware to test.
It works well enough to go multiuser. Network works, SATA does not, as I have
no drive to test.
Thanks to Intel for sending such a board.

Obtained from:  NetBSD
 2004-09-23 22:45:36 +00:00
Olivier Houchard
3ce77c124e Add Xscale common headers. 2004-09-23 22:36:13 +00:00
Olivier Houchard
906ce37658 Big cleanup: get ride of the whole spl level logic, as FreeBSD doesn't use 
it anymore.
 2004-09-23 22:33:38 +00:00
Olivier Houchard
8413603da8 Now that we have pmap_growkernel(), use more KVA. 2004-09-23 22:32:33 +00:00
Olivier Houchard
1f5f31b4ec Remove the empty definition of struct osigcontext, as it will never be used. 2004-09-23 22:31:49 +00:00
Olivier Houchard
7ea7271711 Remove the pcb32_cstate field of struct pcb. 2004-09-23 22:31:08 +00:00
Olivier Houchard
f04d49ad11 Declare sigcode and szsigcode. 2004-09-23 22:30:05 +00:00
Olivier Houchard
9f0f6bf453 Define VM_PROT_READ_IS_EXEC. 2004-09-23 22:29:43 +00:00
Olivier Houchard
ffa589bf15 Implement _mcount(). 
Obtained from:	NetBSD
 2004-09-23 22:29:18 +00:00
Olivier Houchard
c038ee8196 Define STACKALIGNBYTES and STACKALIGN. 2004-09-23 22:27:42 +00:00
Olivier Houchard
a40d2bb653 We are using _mcount, not __mcount. 
Remove the !__ELF__ case.
 2004-09-23 22:26:29 +00:00
Olivier Houchard
8476fd9ff7 Use sf_bufs for uiomove_fromphys(). 2004-09-23 22:25:20 +00:00
Olivier Houchard
04aebdab36 On Xscale, use the minicache for the kernel stack. 2004-09-23 22:24:12 +00:00
Olivier Houchard
9979f39280 Make sure to call cred_update_thread() if needed. 
Add partial support for KTRACE.
 2004-09-23 22:22:33 +00:00
Olivier Houchard
8be9ab9730 Implement cpu_throw(). 
Obtained from:	NetBSD
 2004-09-23 22:20:59 +00:00
Olivier Houchard
01997784aa Remove unused macroes. 
Add user, btrap, etrap, bintr and eintrt in the GPROF case.
 2004-09-23 22:18:56 +00:00
Olivier Houchard
0627741cbf Implement sigreturn(). 2004-09-23 22:12:28 +00:00
Olivier Houchard
f0c85e996a Add the hw.machine sysctl. 2004-09-23 22:11:43 +00:00