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Mark Lord 975b3d3d5b [PATCH] VMSPLIT config options 
Enable selection of different user/kernel VM splits for i386, including an
optimized mode for 1GB physical RAM, which gives the kernel a direct (non
HIGHMEM) mapping to the entire 1GB rather than just the first 896MB.

There is a similarly a similarly optimized mode for machines with exactly 2GB
of physical RAM.

This can speed up the kernel by avoiding having to create/destroy temporary
HIGHMEM mappings, and by not having to include HIGHMEM support at all on such
machines.  The flip side is that there's less virtual addressing left for
userspace in these alternatives, and some binary-only kernel modules may
misbehave unless rebuilt with the same VMSPLIT option as the main kernel
image.

Original idea/patch from Jens Axboe, modified based on suggestions from Linus
et al.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 		2006-02-01 08:53:21 -08:00
..
mach-bigsmp [PATCH] x86: convert bigsmp to use flat physical mode 2006-01-06 08:33:37 -08:00
mach-default [PATCH] x86_64/i386: Remove preempt disable calls in lowlevel IPI 2006-01-11 19:01:57 -08:00
mach-es7000 [PATCH] ES7000 platform update 2005-10-30 17:37:12 -08:00
mach-generic [PATCH] x86: sutomatically enable bigsmp when we have more than 8 CPUs 2005-09-05 00:06:10 -07:00
mach-numaq
…
mach-summit [PATCH] USB: Always do usb-handoff 2005-10-28 16:47:49 -07:00
mach-visws Revert "i386: move apic init in init_IRQs" 2005-10-31 19:16:17 -08:00
mach-voyager
…
8253pit.h
…
a.out.h
…
acpi.h [ACPI] delete CONFIG_ACPI_PCI 2005-08-25 12:40:44 -04:00
agp.h [PATCH] i386: inline asm cleanup 2005-09-05 00:06:11 -07:00
apic.h [PATCH] i386: Handle missing local APIC timer interrupts on C3 state 2006-01-11 19:04:54 -08:00
apicdef.h [PATCH] x86: sutomatically enable bigsmp when we have more than 8 CPUs 2005-09-05 00:06:10 -07:00
arch_hooks.h
…
atomic.h [PATCH] EDAC: core EDAC support code 2006-01-18 19:20:31 -08:00
auxvec.h [PATCH] auxiliary vector cleanups 2005-09-07 16:57:21 -07:00
bitops.h [PATCH] mark several functions __always_inline 2006-01-14 18:27:15 -08:00
boot.h
…
bug.h
…
bugs.h [PATCH] i386: move SIMD initialization 2006-01-06 08:33:34 -08:00
byteorder.h
…
cache.h [PATCH] Kill L1_CACHE_SHIFT_MAX 2006-01-08 20:13:39 -08:00
cacheflush.h [PATCH] x86/x86_64: mark rodata section read only: x86 parts 2006-01-06 08:33:36 -08:00
checksum.h [NET]: Fix ipl=>ihl typo in ip_fast_csum 2005-08-29 16:02:48 -07:00
cpu.h
…
cpufeature.h [PATCH] i386/x86-64: Generalize X86_FEATURE_CONSTANT_TSC flag 2006-01-11 19:01:12 -08:00
cputime.h
…
current.h [PATCH] mark several functions __always_inline 2006-01-14 18:27:15 -08:00
debugreg.h
…
delay.h
…
desc.h [PATCH] x86: GDT alignment fix 2006-01-06 08:33:33 -08:00
div64.h [PATCH] include/asm-i386/: "extern inline" -> "static inline" 2005-09-10 10:06:34 -07:00
dma-mapping.h [PATCH] i386: make pci_map_single/pci_map_sg warn for zero length. 2006-01-11 19:04:56 -08:00
dma.h
…
e820.h
…
edac.h [PATCH] EDAC: core EDAC support code 2006-01-18 19:20:31 -08:00
elf.h [PATCH] fix remaining missing includes 2005-11-07 07:53:41 -08:00
emergency-restart.h [PATCH] i386: Implement machine_emergency_reboot 2005-07-26 14:35:42 -07:00
errno.h
…
fcntl.h [PATCH] Clean up struct flock64 definitions 2005-09-07 16:57:38 -07:00
fixmap.h [ACPI] delete CONFIG_ACPI_BOOT 2005-08-24 12:08:54 -04:00
floppy.h
…
futex.h [PATCH] uml: remove leftover from patch revertal 2006-01-18 19:20:20 -08:00
genapic.h
…
hardirq.h
…
highmem.h
…
hpet.h
…
hw_irq.h Revert "i386: move apic init in init_IRQs" 2005-10-31 19:16:17 -08:00
i387.h [PATCH] i386: task_thread_info() 2006-01-12 09:08:51 -08:00
i8253.h [PATCH] x86: i8253/i8259A lock cleanup 2005-06-30 08:45:10 -07:00
i8259.h
…
ide.h [PATCH] ide: explain the PCI bus test we do in <asm-i386/ide.h> 2005-11-10 00:10:37 +01:00
io.h [PATCH] x86_64: Generalize DMI and enable for x86-64 2006-01-11 19:04:51 -08:00
io_apic.h [ACPI] delete CONFIG_ACPI_BOOT 2005-08-24 12:08:54 -04:00
ioctl.h [PATCH] Generic ioctl.h 2006-01-10 08:01:34 -08:00
ioctls.h
…
ipc.h
…
ipcbuf.h
…
irq.h [PATCH] Make vm86 support optional 2006-01-08 20:14:11 -08:00
ist.h
…
kdebug.h [PATCH] x86 NMI: better support for debuggers 2005-09-05 00:06:13 -07:00
kexec.h [PATCH] Kdump: i386 compiler warning fix 2006-01-10 08:01:27 -08:00
kmap_types.h
…
kprobes.h [PATCH] kprobes: fix build breakage 2006-01-10 08:01:40 -08:00
ldt.h
…
linkage.h
…
local.h
…
math_emu.h
…
mc146818rtc.h
…
mca.h
…
mca_dma.h
…
mman.h [PATCH] madvise(MADV_REMOVE): remove pages from tmpfs shm backing store 2006-01-06 08:33:22 -08:00
mmu.h
…
mmu_context.h
…
mmx.h
…
mmzone.h [PATCH] mm: kvaddr_to_nid not used in common code 2006-01-06 08:33:23 -08:00
module.h [PATCH] Base support for AMD Geode GX/LX processors 2006-01-06 08:33:38 -08:00
mpspec.h Merge linux-2.6 with linux-acpi-2.6 2005-09-08 01:45:47 -04:00
mpspec_def.h [PATCH] mpspec: remove unneeded packed attribute 2006-01-06 08:33:39 -08:00
msgbuf.h
…
msi.h [PATCH] PCI: Change MSI to use physical delivery mode always 2005-11-10 16:09:18 -08:00
msr.h [PATCH] x86: more asm cleanups 2005-09-05 00:06:12 -07:00
mtrr.h
…
mutex.h Fix mutex_trylock() copy-and-paste bug (x86, x86-64, generic mutex-dec.h) 2006-01-11 15:50:47 -08:00
namei.h
…
nmi.h
…
node.h
…
numa.h [PATCH] x86-64: Use ACPI PXM to parse PCI<->node assignments 2005-09-12 10:49:57 -07:00
numaq.h
…
numnodes.h
…
page.h [PATCH] VMSPLIT config options 2006-02-01 08:53:21 -08:00
param.h [PATCH] Avoid namespace pollution in <asm/param.h> 2006-01-02 08:38:38 -08:00
parport.h
…
pci-direct.h
…
pci.h Revert PCIBIOS_MIN_IO changes for 2.6.13 2005-08-14 18:21:30 -07:00
percpu.h
…
pgalloc.h
…
pgtable-2level-defs.h
…
pgtable-2level.h [PATCH] i386: little pgtable.h consolidation vs 2/3level 2005-10-30 17:37:12 -08:00
pgtable-3level-defs.h
…
pgtable-3level.h [PATCH] i386: little pgtable.h consolidation vs 2/3level 2005-10-30 17:37:12 -08:00
pgtable.h [PATCH] fix remaining missing includes 2005-11-07 07:53:41 -08:00
poll.h
…
posix_types.h
…
processor.h [PATCH] i386: task_stack_page() 2006-01-12 09:08:52 -08:00
ptrace.h [PATCH] PTRACE_SYSEMU is only for i386 and clashes with other ptrace codes of other archs 2006-01-08 20:14:04 -08:00
resource.h
…
rtc.h
…
rwlock.h
…
rwsem.h [PATCH] add sem_is_read/write_locked() 2005-10-29 21:40:35 -07:00
scatterlist.h
…
seccomp.h
…
sections.h
…
segment.h [PATCH] x86: Pnp segments in segment h 2006-01-06 08:33:34 -08:00
semaphore.h [PATCH] semaphore: Remove __MUTEX_INITIALIZER() 2005-10-30 17:37:27 -08:00
sembuf.h
…
serial.h [PATCH] Serial: Split 8250 port table (part 2) 2005-06-29 18:45:19 +01:00
setup.h [PATCH] x86: fix EFI memory map parsing 2005-09-05 00:06:09 -07:00
shmbuf.h
…
shmparam.h
…
sigcontext.h
…
siginfo.h
…
signal.h [PATCH] Handle TIF_RESTORE_SIGMASK for i386 2006-01-18 19:20:29 -08:00
smp.h [PATCH] PCI: Change MSI to use physical delivery mode always 2005-11-10 16:09:18 -08:00
socket.h [NET]: Introduce SO_{SND,RCV}BUFFORCE socket options 2005-08-29 15:31:35 -07:00
sockios.h
…
sparsemem.h
…
spinlock.h [PATCH] spinlock consolidation 2005-09-10 10:06:21 -07:00
spinlock_types.h [PATCH] spinlock consolidation 2005-09-10 10:06:21 -07:00
srat.h
…
stat.h
…
statfs.h
…
string.h [PATCH] mark several functions __always_inline 2006-01-14 18:27:15 -08:00
suspend.h
…
system.h [PATCH] sched: add cacheflush() asm 2006-01-12 09:08:49 -08:00
termbits.h
…
termios.h
…
thread_info.h [PATCH] Handle TIF_RESTORE_SIGMASK for i386 2006-01-18 19:20:29 -08:00
timer.h [PATCH] add suspend/resume for timer 2005-09-05 00:06:18 -07:00
timex.h
…
tlb.h
…
tlbflush.h
…
topology.h [PATCH] scheduler cache-hot-autodetect 2006-01-12 09:08:50 -08:00
types.h [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
uaccess.h [PATCH] mark several functions __always_inline 2006-01-14 18:27:15 -08:00
ucontext.h
…
unaligned.h
…
unistd.h [PATCH] Add pselect/ppoll system calls on i386 2006-01-18 19:20:30 -08:00
user.h
…
vga.h
…
vic.h
…
vm86.h [PATCH] Make vm86 support optional 2006-01-08 20:14:11 -08:00
voyager.h
…
xor.h [PATCH] i386: inline asm cleanup 2005-09-05 00:06:11 -07:00