Cleanup of the d_mmap_t interface.

- Get rid of the useless atop() / pmap_phys_address() detour.  The
  device mmap handlers must now give back the physical address
  without atop()'ing it.
- Don't borrow the physical address of the mapping in the returned
  int.  Now we properly pass a vm_offset_t * and expect it to be
  filled by the mmap handler when the mapping was successful.  The
  mmap handler must now return 0 when successful, any other value
  is considered as an error.  Previously, returning -1 was the only
  way to fail.  This change thus accidentally fixes some devices
  which were bogusly returning errno constants which would have been
  considered as addresses by the device pager.
- Garbage collect the poorly named pmap_phys_address() now that it's
  no longer used.
- Convert all the d_mmap_t consumers to the new API.

I'm still not sure wheter we need a __FreeBSD_version bump for this,
since and we didn't guarantee API/ABI stability until 5.1-RELEASE.

Discussed with:		alc, phk, jake
Reviewed by:		peter
Compile-tested on:	LINT (i386), GENERIC (alpha and sparc64)
Runtime-tested on:	i386

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/dev/firewire/fwmem.c b/sys/dev/firewire/fwmem.c
index dd3a27a..9c64fdc 100644
--- a/sys/dev/firewire/fwmem.c
+++ b/sys/dev/firewire/fwmem.c
@@ -419,7 +419,7 @@ fwmem_poll (dev_t dev, int events, fw_proc *td)
 	return EINVAL;
 }
 int
-fwmem_mmap (dev_t dev, vm_offset_t offset, int nproto)
+fwmem_mmap (dev_t dev, vm_offset_t offset, vm_offset_t *paddr, int nproto)
 {  
 	return EINVAL;
 }