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mirror of https://git.FreeBSD.org/src.git synced 2024-12-25 11:37:56 +00:00
freebsd/sys/amd64/include
Alan Cox 3153e878dd Add support to the virtual memory system for configuring machine-
dependent memory attributes:

Rename vm_cache_mode_t to vm_memattr_t.  The new name reflects the
fact that there are machine-dependent memory attributes that have
nothing to do with controlling the cache's behavior.

Introduce vm_object_set_memattr() for setting the default memory
attributes that will be given to an object's pages.

Introduce and use pmap_page_{get,set}_memattr() for getting and
setting a page's machine-dependent memory attributes.  Add full
support for these functions on amd64 and i386 and stubs for them on
the other architectures.  The function pmap_page_set_memattr() is also
responsible for any other machine-dependent aspects of changing a
page's memory attributes, such as flushing the cache or updating the
direct map.  The uses include kmem_alloc_contig(), vm_page_alloc(),
and the device pager:

  kmem_alloc_contig() can now be used to allocate kernel memory with
  non-default memory attributes on amd64 and i386.

  vm_page_alloc() and the device pager will set the memory attributes
  for the real or fictitious page according to the object's default
  memory attributes.

Update the various pmap functions on amd64 and i386 that map pages to
incorporate each page's memory attributes in the mapping.

Notes: (1) Inherent to this design are safety features that prevent
the specification of inconsistent memory attributes by different
mappings on amd64 and i386.  In addition, the device pager provides a
warning when a device driver creates a fictitious page with memory
attributes that are inconsistent with the real page that the
fictitious page is an alias for. (2) Storing the machine-dependent
memory attributes for amd64 and i386 as a dedicated "int" in "struct
md_page" represents a compromise between space efficiency and the ease
of MFCing these changes to RELENG_7.

In collaboration with: jhb

Approved by:	re (kib)
2009-07-12 23:31:20 +00:00
..
pc A simple rewrite of biossmap.c: 2009-04-15 17:31:22 +00:00
xen Merge in support for Xen HVM on amd64 architecture. 2009-03-11 15:30:12 +00:00
_bus.h
_inttypes.h
_limits.h
_stdint.h
_types.h
acpica_machdep.h
apicreg.h Add constants for fields in the local APIC error status register and a 2008-12-11 15:56:30 +00:00
apicvar.h Add support for using i8254 and rtc timers as event sources for amd64 SMP 2009-05-02 12:20:43 +00:00
asm.h
asmacros.h Save and restore segment registers on amd64 when entering and leaving 2009-04-01 13:09:26 +00:00
atomic.h - bump __FreeBSD version to reflect added buf_ring, memory barriers, 2008-11-22 05:55:56 +00:00
bus_dma.h
bus.h
clock.h Rename statclock_disable variable to atrtcclock_disable that it actually is, 2009-05-03 17:47:21 +00:00
cpu.h
cpufunc.h Simplify in/out functions (for i386 and AMD64). 2009-04-11 14:01:01 +00:00
cputypes.h Add Centaur/IDT/VIA vendor ID for Nano family, which has long mode support. 2009-01-05 21:51:49 +00:00
db_machdep.h
elf.h Add AT_EXECPATH ELF auxinfo entry type. The value's a_ptr is a pointer 2009-03-17 12:50:16 +00:00
endian.h Also remove the unused __word_swap_int*() macros. 2009-04-08 19:10:20 +00:00
exec.h
float.h
floatingpoint.h
fpu.h A few cleanups to the FPU code on amd64: 2009-03-05 16:56:16 +00:00
frame.h Save and restore segment registers on amd64 when entering and leaving 2009-04-01 13:09:26 +00:00
gdb_machdep.h
ieeefp.h
in_cksum.h
intr_machdep.h Improve the handling of cpuset with interrupts. 2009-07-01 17:20:07 +00:00
iodev.h Remove the unused major/minor numbers from iodev and memdev. 2008-06-25 07:45:31 +00:00
kdb.h
legacyvar.h Companion for r188301: fix the prototypes. 2009-02-08 07:03:34 +00:00
limits.h
mca.h Implement simple machine check support for amd64 and i386. 2009-05-13 17:53:04 +00:00
md_var.h Save and restore segment registers on amd64 when entering and leaving 2009-04-01 13:09:26 +00:00
memdev.h Remove the unused major/minor numbers from iodev and memdev. 2008-06-25 07:45:31 +00:00
metadata.h A simple rewrite of biossmap.c: 2009-04-15 17:31:22 +00:00
minidump.h
mp_watchdog.h
mptable.h
mutex.h
nexusvar.h
param.h Cleanup ALIGNED_POINTER: 2009-07-05 17:45:48 +00:00
pcb.h Restore the segment registers and segment base MSRs for amd64 syscall 2009-07-09 09:34:11 +00:00
pci_cfgreg.h Extend the support for PCI-e memory mapped configuration space access: 2008-08-22 02:14:23 +00:00
pcpu.h Fix XENHVM build. 2009-05-06 17:48:39 +00:00
pmap.h Add support to the virtual memory system for configuring machine- 2009-07-12 23:31:20 +00:00
pmc_mdep.h - Add support for PMCs in Intel CPUs of Family 6, model 0xE (Core Solo 2008-11-27 09:00:47 +00:00
ppireg.h
proc.h Save and restore segment registers on amd64 when entering and leaving 2009-04-01 13:09:26 +00:00
profile.h
psl.h
ptrace.h
reg.h Add all segment registers for the amd64 CPU to struct reg and mcontext. 2009-04-01 12:44:17 +00:00
reloc.h
resource.h
runq.h
segments.h Save and restore segment registers on amd64 when entering and leaving 2009-04-01 13:09:26 +00:00
setjmp.h
sf_buf.h
sigframe.h
signal.h Sync definitions for struct sigcontext for i386 and amd64 architectures 2009-04-01 13:44:28 +00:00
smp.h FreeBSD right now support 32 CPUs on all the architectures at least. 2009-05-14 17:43:00 +00:00
specialreg.h Implement simple machine check support for amd64 and i386. 2009-05-13 17:53:04 +00:00
stack.h Make preparations for increasing the size of the kernel virtual 2008-06-20 05:22:09 +00:00
stdarg.h
sysarch.h Save and restore segment registers on amd64 when entering and leaving 2009-04-01 13:09:26 +00:00
timerreg.h
trap.h
tss.h
ucontext.h Add all segment registers for the amd64 CPU to struct reg and mcontext. 2009-04-01 12:44:17 +00:00
varargs.h
vm.h Add support to the virtual memory system for configuring machine- 2009-07-12 23:31:20 +00:00
vmparam.h correct range in comment 2009-05-16 22:08:00 +00:00