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freebsd-skq/sys/i386/include
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alc ea60573817 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 Revert to 2-clause. 2009-05-29 13:48:42 +00:00
_bus.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
_inttypes.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
_limits.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
_stdint.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
_types.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
acpica_machdep.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
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 Decouple the i386 native and i386 Xen APIC definitions a little further. 2009-06-07 22:52:48 +00:00
apm_bios.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
apm_segments.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
asm.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
asmacros.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
atomic.h Restore memory clobber, to cause mb on the compiler level too. 2008-12-06 21:33:44 +00:00
bootinfo.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
bus_dma.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
bus.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
clock.h Rename statclock_disable variable to atrtcclock_disable that it actually is, 2009-05-03 17:47:21 +00:00
cpu.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
cpufunc.h Move (read|write)_cyrix_reg() inlines from specialreg.h to cpufunc.h. 2009-06-16 15:13:18 +00:00
cputypes.h Introduce cpu_vendor_id and replace a lot of strcmp(cpu_vendor, "..."). 2008-11-26 19:25:13 +00:00
cserial.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
db_machdep.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
elan_mmcr.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
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 Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
float.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
floatingpoint.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
frame.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
gdb_machdep.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
ieeefp.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
if_wl_wavelan.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
in_cksum.h Clobber "cc" instead of using volatile; remove obsolete register keyword. 2009-06-13 14:00:10 +00:00
intr_machdep.h Improve the handling of cpuset with interrupts. 2009-07-01 17:20:07 +00:00
ioctl_bt848.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
ioctl_meteor.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
iodev.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
kdb.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
legacyvar.h strict kobj signatures: fix legacy i386 pcib_write_config impl 2009-06-11 17:06:31 +00:00
limits.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
mca.h Implement simple machine check support for amd64 and i386. 2009-05-13 17:53:04 +00:00
md_var.h Introduce cpu_vendor_id and replace a lot of strcmp(cpu_vendor, "..."). 2008-11-26 19:25:13 +00:00
memdev.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
metadata.h A simple rewrite of biossmap.c: 2009-04-15 17:31:22 +00:00
minidump.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
mp_watchdog.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
mptable.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
mutex.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
nexusvar.h Rework how the nexus(4) device works on x86 to better handle the idea of 2008-03-13 20:39:04 +00:00
npx.h Some cleanups to the i386 FPU support: 2009-03-05 18:32:43 +00:00
param.h Cleanup ALIGNED_POINTER: 2009-07-05 17:45:48 +00:00
pcaudioio.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
pcb_ext.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
pcb.h A better fix for handling different FPU initial control words for different 2009-03-05 19:42:11 +00:00
pci_cfgreg.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
pcpu.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
perfmon.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +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 Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
privatespace.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
proc.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
profile.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
psl.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
ptrace.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
reg.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
reloc.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
resource.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
runq.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
segments.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
setjmp.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
sf_buf.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
sigframe.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
signal.h Sync definitions for struct sigcontext for i386 and amd64 architectures 2009-04-01 13:44:28 +00:00
smapi.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
smp.h FreeBSD right now support 32 CPUs on all the architectures at least. 2009-05-14 17:43:00 +00:00
speaker.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
specialreg.h Move (read|write)_cyrix_reg() inlines from specialreg.h to cpufunc.h. 2009-06-16 15:13:18 +00:00
stack.h Break out stack(9) from ddb(4): 2007-12-02 20:40:35 +00:00
stdarg.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
sysarch.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
timerreg.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
trap.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
tss.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
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 Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
vm86.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00
vm.h Add support to the virtual memory system for configuring machine- 2009-07-12 23:31:20 +00:00
vmparam.h Retire VM_PROT_READ_IS_EXEC. It was intended to be a micro-optimization, 2009-04-04 23:12:14 +00:00
xbox.h Clone Kip's Xen on stable/6 tree so that I can work on improving FreeBSD/amd64 2008-11-22 16:14:52 +00:00