freebsd-nq/sys/amd64
John Baldwin a3870a1826 Very rough first cut at NUMA support for the physical page allocator. For
now it uses a very dumb first-touch allocation policy.  This will change in
the future.
- Each architecture indicates the maximum number of supported memory domains
  via a new VM_NDOMAIN parameter in <machine/vmparam.h>.
- Each cpu now has a PCPU_GET(domain) member to indicate the memory domain
  a CPU belongs to.  Domain values are dense and numbered from 0.
- When a platform supports multiple domains, the default freelist
  (VM_FREELIST_DEFAULT) is split up into N freelists, one for each domain.
  The MD code is required to populate an array of mem_affinity structures.
  Each entry in the array defines a range of memory (start and end) and a
  domain for the range.  Multiple entries may be present for a single
  domain.  The list is terminated by an entry where all fields are zero.
  This array of structures is used to split up phys_avail[] regions that
  fall in VM_FREELIST_DEFAULT into per-domain freelists.
- Each memory domain has a separate lookup-array of freelists that is
  used when fulfulling a physical memory allocation.  Right now the
  per-domain freelists are listed in a round-robin order for each domain.
  In the future a table such as the ACPI SLIT table may be used to order
  the per-domain lookup lists based on the penalty for each memory domain
  relative to a specific domain.  The lookup lists may be examined via a
  new vm.phys.lookup_lists sysctl.
- The first-touch policy is implemented by using PCPU_GET(domain) to
  pick a lookup list when allocating memory.

Reviewed by:	alc
2010-07-27 20:33:50 +00:00
..
acpica Re-implement FPU suspend/resume for amd64. This removes superfluous uses 2010-07-26 19:53:09 +00:00
amd64 Simplify fldcw() macro. There is no reason to use pointer here. No object 2010-07-26 23:20:55 +00:00
compile
conf Add hints for i8254 timer on i386 and amd64. Some people report about 2010-07-16 23:21:46 +00:00
ia32 Move prototypes for kern_sigtimedwait() and kern_sigprocmask() to 2010-06-30 18:03:42 +00:00
include Very rough first cut at NUMA support for the physical page allocator. For 2010-07-27 20:33:50 +00:00
linux32 Remove unneeded includes. 2010-07-26 14:38:51 +00:00
pci number of cleanups in i386 and amd64 pci md code 2009-09-24 07:11:23 +00:00
Makefile Adjustments to make a tags file a bit more suitable to amd64. 2008-12-01 14:15:10 +00:00