share/man/man9/Makefile: Keep MLINKS lines sorted.
bnx.4: Mention 5717C, which is quite similar to 5720
bnx.4: Add HARDWARE section
bnx.4: Add missing .El
igb.4: This driver is not much related to em/emx
drm: Implement dmi_check_system()

* The original function imported from FreeBSD was just a stub

* Replace it by a working implementation from OpenBSD

* And modify it slightly to use SMBIOS information from the loader

* This makes it possible to avoid display detection issues on some
  slightly broken hardware reporting phantom outputs or other weird
  invalid data.
drm: Use NELEM() in dmi_check_system()

Spotted-by: swildner
kernel: Add VM_MAX_ADDRESS and VM_MIN_ADDRESS constants
drm: Improve dmi_found()

* The OpenBSD code didn't distinguish between board and system names as
  well as board and system vendors

* Properly release memory allocated by kgetenv() while I'm at it
kernel: Add pmap_page_set_memattr()

Obtained-from: FreeBSD
Avoid potentially freeing NULL pointers in dmi_found()
libc/db: Add missing MLINK for mpool_delete().
pmap/i386: Unbreak buildkernel

- Comment out pmap_change_attr function call.  Add notes about what
  needs fix.
- Minor style change.
route/inet: Dispatch PRCLONed route expiration to netisr
route/inet: Add comment about read/write shared global variables
kernel: Add a memattr argument to vm_page_alloc_contig()
drm: Move PROC_LOCK define to common file
drm: Locally implement VM_OBJECT_LOCK variants
drm: Import the ttm memory manager from FreeBSD

It is needed by some recent GPU drivers such as nouveau and radeon
for nvidia and AMD hardware
ttm porting: Fix include files