freebsd-dev/sys/arm
Alan Cox 04a18977c8 Define every architecture as either VM_PHYSSEG_DENSE or
VM_PHYSSEG_SPARSE depending on whether the physical address space is
densely or sparsely populated with memory.  The effect of this
definition is to determine which of two implementations of
vm_page_array and PHYS_TO_VM_PAGE() is used.  The legacy
implementation is obtained by defining VM_PHYSSEG_DENSE, and a new
implementation that trades off time for space is obtained by defining
VM_PHYSSEG_SPARSE.  For now, all architectures except for ia64 and
sparc64 define VM_PHYSSEG_DENSE.  Defining VM_PHYSSEG_SPARSE on ia64
allows the entirety of my Itanium 2's memory to be used.  Previously,
only the first 1 GB could be used.  Defining VM_PHYSSEG_SPARSE on
sparc64 allows USIIIi-based systems to boot without crashing.

This change is a combination of Nathan Whitehorn's patch and my own
work in perforce.

Discussed with: kmacy, marius, Nathan Whitehorn
PR:		112194
2007-05-05 19:50:28 +00:00
..
arm Fix a comment 2007-03-21 07:49:56 +00:00
at91 Don't expose the uart_ops structure directly, but instead have 2007-04-02 22:00:22 +00:00
compile
conf Default to booting off the SD card. It is more useful, and a full 2007-03-23 23:47:59 +00:00
include Define every architecture as either VM_PHYSSEG_DENSE or 2007-05-05 19:50:28 +00:00
sa11x0 Don't expose the uart_ops structure directly, but instead have 2007-04-02 22:00:22 +00:00
xscale Remove sa1_cache_clean_addr. It isn't needed. 2007-05-03 09:51:12 +00:00