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freebsd-nq/sys/i386/include
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Peter Wemm 654bd0e802 Reduce the size of pv entries by 15%. This saves 1MB of KVA for mapping 
pv entries per 1GB of user virtual memory.  (eg: if we had 1GB file was
mmaped into 30 processes, that would theoretically reduce the KVA demand by
30MB for pv entries.  In reality though, we limit pv entries so we don't
have that many at once.)

We used to store the vm_page_t for the page table page.  But we recently
had the pa of the ptp, or can calculate it fairly quickly.  If we wanted
to avoid the shift/mask operation in pmap_pde(), we could recover the
pa but that means we have to store it for a while.

This does not measurably change performance.

Suggested by:  alc
Tested by:  alc
2004-06-29 15:57:05 +00:00
..
pc - Use the correct devclass name ("acpi" vs "ACPI") to detect if acpi0 is 2004-06-10 20:43:04 +00:00
_inttypes.h
_limits.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
_stdint.h <stdint.h> should define WINT_M{AX,IN} independent from whether WCHAR_MIN is 2004-05-18 16:04:57 +00:00
_types.h Introduce the cpumask_t type. The purpose of the type is to create a 2004-03-20 20:41:40 +00:00
acpica_machdep.h Add an MI implementation of the ACPI global lock routines and retire the 2004-05-05 20:04:14 +00:00
apicreg.h Delete old and unused APIC_IRQ defines. 2003-12-10 21:33:07 +00:00
apicvar.h Various cleanups in support of a future ioapic_config_intr() function: 2004-06-23 15:29:20 +00:00
apm_bios.h
apm_segments.h
asm.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
asmacros.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
atomic.h These are changes to allow to use the Intel C/C++ compiler (lang/icc) 2004-03-12 21:45:33 +00:00
bootinfo.h Libdisk does not need to include <sys/diskslice.h> any more. 2003-04-04 16:35:16 +00:00
bus_at386.h These are changes to allow to use the Intel C/C++ compiler (lang/icc) 2004-03-12 21:45:33 +00:00
bus_dma.h Document the lockfunc and lockfuncarg arguments to bus_dma_tag_create() in 2003-11-07 23:29:42 +00:00
bus_memio.h
bus_pc98.h Increase BUS_SPACE_IAT_MAXSIZE to 33 for the ed driver. 2004-05-04 06:38:13 +00:00
bus_pio.h
bus.h
clock.h - Move manipulation of td_intr_nesting_level out of assembly interrupt 2003-11-12 18:13:57 +00:00
comstats.h
cpu.h Backed out previous commit. Blind substitution of dev_t by `struct cdev *' 2004-06-20 03:52:50 +00:00
cpufunc.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
cputypes.h The NatSemi (now AMD) Geode SC1100 needs special treatment here and there 2004-06-03 21:14:53 +00:00
critical.h These are changes to allow to use the Intel C/C++ compiler (lang/icc) 2004-03-12 21:45:33 +00:00
cserial.h Updated cx driver commit part 1: bring in the new kernel driver. 2003-12-03 07:29:38 +00:00
db_machdep.h
elan_mmcr.h Add struct definition of the Elan MMCR registers (from jb@) 2004-01-05 12:00:59 +00:00
elf.h Add sysentvec->sv_fixlimits() hook so that we can catch cases on 64 bit 2003-09-25 01:10:26 +00:00
endian.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
exec.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
float.h remove needless blankline 2004-06-28 03:08:17 +00:00
floatingpoint.h o Move the contents of <machine/floatingpoint.h> over to 2003-01-19 06:01:33 +00:00
frame.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
i4b_cause.h
i4b_debug.h
i4b_ioctl.h
i4b_rbch_ioctl.h
i4b_tel_ioctl.h
i4b_trace.h
ieeefp.h These are changes to allow to use the Intel C/C++ compiler (lang/icc) 2004-03-12 21:45:33 +00:00
if_wl_wavelan.h
in_cksum.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
intr_machdep.h - Add a new pic method pic_config_intr() to set the trigger mode and 2004-05-04 21:02:56 +00:00
ioctl_bt848.h These are changes to allow to use the Intel C/C++ compiler (lang/icc) 2004-03-12 21:45:33 +00:00
ioctl_meteor.h These are changes to allow to use the Intel C/C++ compiler (lang/icc) 2004-03-12 21:45:33 +00:00
legacyvar.h Make the legacy_pcib_attach() function static. 2004-05-03 14:49:43 +00:00
limits.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
md_var.h Remove atdevbase and replace it's remaining uses with direct references to 2004-06-10 20:31:00 +00:00
metadata.h Slight reorg and added AMD64 support. A couple of the MODINFOMD_* values 2003-05-01 03:31:18 +00:00
mptable.h Convert a couple of pointers to integers for source compatability with 2003-11-14 22:23:30 +00:00
mtpr.h
mutex.h
npx.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
param.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
pcaudioio.h
pcb_ext.h
pcb.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
pci_cfgreg.h - Create a pir0 psuedo device as a child of legacy0 if we attach a legacy 2004-05-04 21:17:52 +00:00
pcpu.h These are changes to allow to use the Intel C/C++ compiler (lang/icc) 2004-03-12 21:45:33 +00:00
pcvt_ioctl.h Add just enough of i386/include/pcvt_ioctl.h to amd64/include/pcvt_ioctl.h 2003-12-10 02:49:17 +00:00
pecoff_machdep.h
perfmon.h
pmap.h Reduce the size of pv entries by 15%. This saves 1MB of KVA for mapping 2004-06-29 15:57:05 +00:00
privatespace.h
proc.h bde points out that this can't do anything useful. The full patch has 2004-06-28 05:37:22 +00:00
profile.h Moved i386 asms to an i386 header. The asms are for calibration of 2004-05-20 16:12:19 +00:00
psl.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
ptrace.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
reg.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
reloc.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
resource.h
runq.h
segments.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
setjmp.h
sf_buf.h Don't remove the virtual-to-physical mapping when an sf_buf is freed. 2003-12-07 22:49:25 +00:00
sigframe.h
signal.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
smapi.h Use __packed; 2003-03-24 20:44:39 +00:00
smp.h - Add the mp_topology() function to mp_machdep.c. This function builds up 2003-12-11 03:48:31 +00:00
smptests.h Localized the cy driver's locking. 2003-11-16 00:55:54 +00:00
speaker.h
specialreg.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
stdarg.h These are changes to allow to use the Intel C/C++ compiler (lang/icc) 2004-03-12 21:45:33 +00:00
sysarch.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
trap.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
tss.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
ucontext.h
varargs.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
vm86.h
vmparam.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00