CVS log for src/sys/arch/powerpc/include/pmap.h

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Additionally pull up following revision(s) (requested by rin in ticket #400):

	sys/arch/powerpc/include/oea/pmap.h: revision 1.39
	sys/arch/powerpc/include/pmap.h: revision 1.43
	sys/arch/powerpc/oea/pmap_kernel.c: revision 1.14
	sys/arch/powerpc/oea/pmap.c: revision 1.117
	sys/arch/powerpc/oea/pmap.c: revision 1.118
	sys/arch/powerpc/oea/pmap.c: revision 1.119
	sys/arch/powerpc/include/vmparam.h: revision 1.27
	sys/arch/powerpc/powerpc/trap.c: revision 1.165
	sys/arch/powerpc/oea/pmap.c: revision 1.120
	sys/arch/powerpc/oea/pmap.c: revision 1.121
	sys/arch/powerpc/powerpc/vm_machdep.c: revision 1.106
	sys/arch/powerpc/powerpc/bus_dma.c: revision 1.56

powerpc/oea: trap: pmap_{pte,ste}_spill() even in the interrupt context

Page table for oea is something like L2 TLB on memory; kernel and
processes share its entries, and process entries can be spilled out.

As done for MMU based on software-managed TLB, we need to restore
such entries even in the interrupt context.

Note that pmap_pte_spill() require no resouce to restore entries.
Still-not-implemented pmap_ste_spill() for OEA64 should also.
Part of PR kern/57621

powerpc/oea: pmap: Drop unused argument for pmap_pvo_reclaim(), NFC
Part of PR kern/57621

powerpc/oea: pmap: Rework pmap_pte_spill()

It was broken in many ways... Now, it gets working stable both for
OEA and OEA64_BRIDGE, as far as I can see.
Part of PR kern/57621

powerpc/oea: pmap: Fix mostly-pointless overhead of pmap_pvo_pool
(1) Drop __aligned(32) from struct pvo_entry; otherwise,
    sizeof(struct pvo_entry) is round-up'ed to a multiple of 32.
(2) Do not set sizeof(struct pvo_entry) to `align` argument for
    pool_init(9); it must be power of 2.
(3) Align pvo_entry to 32-byte boundary only if reasonably possible,
    i.e., OEA without DIAGNOSTIC (--> POOL_REDZONE) for now.
Part of PR kern/57621

powerpc/oea: pmap_create: Use PR_ZERO and drop memset(9), NFC
Part of PR kern/57621

powerpc: oea: For OEA64_BRIDGE, 1:1 map up to 3GiB memory
As done for OEA. Note that kva over 3GiB is reserved.

Provide PMAP_MAP_POOLPAGE for OEA64_BRIDGE at the same time, by
which direct-mapped memory is utilized in order to work around
starvation of 512MiB kernel virtual space.
PR kern/57621

powerpc: Make sure direct-mapped buffer fits within correct range

For OEA and OEA64_BRIDGE, only first 3GiB memory is direct-mapped.
Part of PR kern/57621

powerpc: Make sure direct-mapped buffer fits within correct range

For OEA and OEA64_BRIDGE, only first 3GiB memory is direct-mapped.

Part of PR kern/57621

Try to fix PV tracking support.

* For oea (with real PV tracking support):

  Define __HAVE_PMAP_PV_TRACK. Otherwise, pmap_pv_init() is not called by
  uvm_init().

* For booke and ibm4xx (without PV tracking support):

  For MODULAR kernel and modules, define __HAVE_PMAP_PV_TRACK together with
  PMAP_PV_TRACK_ONLY_STUBS, so that modules can be shared with oea.

Note that PMAP_PV_TRACK_ONLY_STUBS can be used even for oea,
as a compile-time option to strip real PV tracking support.

powerpc: Implement pv-tracking for unmanaged pages.

Needed for drm.

Fix comments. No binary changes.

Fix MODULAR support for ibm4xx by providing __nothing as VM_MDPAGE_INIT().

Catchup with rmind-uvmplock merge.

Readd powerpc/include/vmparam.h to the set lists
Export it to powerpc/include.h
Protect pmap.h and vmparam.h from getting an #error when included
from userland.
Export safe definitions of VM_MAXUSER_ADDRESS, VM_MIN_ADDRESS,
VM_MAX_ADDRESS when _RUMPKERNEL is defined.

PowerPC now exports a common view of cpu.h, vmparam.h and pmap.h
when building a MODULAR kernel or compiling _MODULE.
It should be noted that MODULAR or _MODULE export a view of the kernel
as being MULTIPROCESSOR (even if isn't).
The shared pmap TLB uses mdpg in places where it used mdpg to avoid
deadly embrance inclusion problems.

Add #error for unknown PPC variant
Now that oea calls cpu_fixup_stubs, we don't need pmap_fixup_stubs.

Add booke support.

Sync with HEAD.

sync with head

Include BookE version of pmap.h

sync with head.

Sync with HEAD.

Sync with HEAD.

Update haad-dm branch to haad-dm-base2.

Make pmap_kernel() a MI macro for struct pmap *kernel_pmap_ptr,
which is now the "API" provided by the pmap module.  pmap_kernel()
remains as the syntactic sugar.

Bonus cosmetics round: move all the pmap_t pointer typedefs into
uvm_pmap.h.

Thanks to Greg Oster for providing cpu muscle for doing test builds.

sync with head.

sync with head

sync with head

1st cut of Powermac G5 support (uses bridge mode).

Don't define pmap_t if _LOCORE is defined.

LKM's need a pmap_t typedef but there's no PPC_xxx to defined which pmap.h
to include.  So just declare the pmap_t and don't do anything else.

Rename PPC_MPC6XX to PPC_OEA (and any mpc6xx reference to oea).

More cleanup for OLDPMAP.

Catch up to -current

Change _MACHINE_foo_H_ to _POWERPC_foo_H_

Catch up to -current.

sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work

it really helps to get the stub right before cutting + pasting it 27 times.
alas, I did not.  doh.

add pmap_remove_all() hook (empty on most platforms so far).

Sync kqueue branch with -current.

Catch up with -current.

file pmap.h was added on branch nathanw_sa on 2002-10-18 02:39:31 +0000

implement pmap_wired_count().

Update the kqueue branch to HEAD.

Update pmap_update to now take the updated pmap as an argument.
This will allow improvements to the pmaps so that they can more easily defer expensive operations, eg tlb/cache flush, til the last possible moment.

Currently this is a no-op on most platforms, so they should see no difference.

Reviewed by Jason.

Catch up to -current.

Make the new pmap optional.  Use the old (stable!) pmap by default.

Introduce a new & faster pmap for the MPC6xx (60x, 7xx, 7xxx) PPC CPUs.
Move MPC6xx dependent header files to powerpc/include/mpc6xx/

Sync with HEAD.

Undo a misguided previous change to the pmap_update() API.

Give pmap_update() an argument (a pmap_t) so that it knows which
pmap it should be updating.

#define away pmap_update() in <machine/pmap.h> so that no function
call overhead is incurred as we start sprinkling pmap_update() calls
throughout the source tree (no pmaps currently defer operations, but
we are adding the infrastructure to allow them to do so).

Sync with HEAD.

Build with -Wall -Wetc.

Update thorpej_scsipi to -current as of a month ago
A i386 GENERIC kernel compiles without the siop, ahc and bha drivers
(will be updated later). i386 IDE/ATAPI and ncr work, as well as
sparc/esp_sbus. alpha should work as well (untested yet).
siop, ahc and bha will be updated once I've updated the branch to current
-current, as well as machine-dependant code.

Prototype vtophys() before defining it. Needed for compilation with
-Wstrict prototypes on macppc.

Problem noted by  Hans-Christian Becker <hcb@phc.chalmers.se> in private mail.

eliminate the PMAP_NEW option by making it required for all ports.
ports which previously had no support for PMAP_NEW now implement
the pmap_k* interfaces as wrappers around the non-k versions.

Update from trunk.

Adapt pmap_extract() change.

Change the pmap_extract() interface to:
	boolean_t pmap_extract(pmap_t, vaddr_t, paddr_t *);
This makes it possible for the pmap to map physical address 0.

Sync w/ -current.

pmap_change_wiring() -> pmap_unwire().

Use the same hack as pmap_zero_page() and pmap_copy_page() to provide
direct-mapped pool pages.

Add RSS accounting.

Implement pmap_procwr().
(Not tested.  gdb doesn't work on powerpc yet.)

Add some prototypes.

vm_offset_t --> [pv]addr_t

Make vtophys() return non-zero even if the addr < end.

Import DDB from OpenBSD/powerpc.

Don't need __VM_PMAP_HACK anymore.

Now that all ports have pmap_activate(), and it has an identical interface,
prototype it in <vm/pmap.h>

Implement pmap_activate().

Add #define __VM_PMAP_HACK as a temporary measure.

PowerPC port