David Miller 9e695d2ecc sparc64: Support transparent huge pages. ... This is relatively easy since PMD's now cover exactly 4MB of memory. Our PMD entries are 32-bits each, so we use a special encoding. The lowest bit, PMD_ISHUGE, determines the interpretation. This is possible because sparc64's page tables are purely software entities so we can use whatever encoding scheme we want. We just have to make the TLB miss assembler page table walkers aware of the layout. set_pmd_at() works much like set_pte_at() but it has to operate in two page from a table of non-huge PTEs, so we have to queue up TLB flushes based upon what mappings are valid in the PTE table. In the second regime we are going from huge-page to non-huge-page, and in that case we need only queue up a single TLB flush to push out the huge page mapping. We still have 5 bits remaining in the huge PMD encoding so we can very likely support any new pieces of THP state tracking that might get added in the future. With lots of help from Johannes Weiner. Signed-off-by: David S. Miller <davem@davemloft.net> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-10-09 16:23:06 +09:00
..
.gitignore
apc.c
asm-offsets.c
audit.c
auxio_32.c
auxio_64.c
btext.c
central.c
cherrs.S
chmc.c
compat_audit.c
cpu.c	sparc32: handle leon in cpu.c	2012-05-27 23:52:45 -07:00
cpumap.c
cpumap.h
devices.c
dma.c
ds.c
dtlb_miss.S
dtlb_prot.S
ebus.c
entry.h
entry.S	sparc32: introduce support for run-time patching for all shared assembler code	2012-05-27 23:52:49 -07:00
etrap_32.S	sparc32: introduce support for run-time patching for all shared assembler code	2012-05-27 23:52:49 -07:00
etrap_64.S	Revert strace hiccups fix.	2012-10-05 20:39:04 -07:00
fpu_traps.S
ftrace.c
getsetcc.S
head_32.S	sparc32: drop swapper_pg_dir	2012-07-26 16:46:15 -07:00
head_64.S	sparc64: Niagara-4 bzero/memset, plus use MRU stores in page copy.	2012-10-05 13:45:26 -07:00
helpers.S
hvapi.c	sparc: fix format string argument for prom_printf()	2012-10-02 23:20:34 -04:00
hvcalls.S	sparc64: Add hypervisor interfaces for SPARC-T4 perf counter access.	2012-08-18 23:03:53 -07:00
hvtramp.S
idprom.c
iommu_common.h
iommu.c
ioport.c	sparc32: Export leon_dma_ops to modules.	2012-05-28 00:07:03 -07:00
irq_32.c	sparc32: handle leon in irq_32.c	2012-05-27 23:52:44 -07:00
irq_64.c	sparc32: Trivial removal of sun4c references in comments.	2012-05-12 00:35:45 -07:00
irq.h	sparc32: remove runtime btfix support	2012-05-14 14:05:09 -07:00
itlb_miss.S
ivec.S
jump_label.c
kernel.h	sparc32: introduce sparc32_start_kernel called from head_32.S	2012-05-27 23:52:42 -07:00
kgdb_32.c
kgdb_64.c
kprobes.c
kstack.h
ktlb.S	sparc64: Support 2GB and 16GB page sizes for kernel linear mappings.	2012-09-06 18:13:58 -07:00
ldc.c	sparc/ldc: remove IRQF_SAMPLE_RANDOM which is now a no-op	2012-07-19 10:40:30 -04:00
led.c
leon_kernel.c	sparc32,leon: drop leon_init()	2012-07-26 16:46:16 -07:00
leon_pci_grpci2.c
leon_pci.c	PCI: Provide a default pcibios_update_irq()	2012-09-18 17:28:21 -06:00
leon_pmc.c	sparc32,leon: always include leon_pmc in build	2012-05-27 23:52:53 -07:00
leon_smp.c	sparc32,leon: fix section mismatch warning	2012-05-27 23:52:48 -07:00
Makefile	sparc32,leon: always include leon_pmc in build	2012-05-27 23:52:53 -07:00
mdesc.c	sparc64: Probe cpu page size support more portably.	2012-09-06 19:01:25 -07:00
misctrap.S
module.c	sparc: fix the return value of module_alloc()	2012-09-21 12:14:20 -07:00
nmi.c	sparc64: Abstract away the %pcr values used to enable/disable NMI	2012-08-18 23:26:19 -07:00
of_device_32.c
of_device_64.c	devicetree: add helper inline for retrieving a node's full name	2012-07-06 07:16:34 -05:00
of_device_common.c
of_device_common.h
pci_common.c
pci_fire.c
pci_impl.h	sparc/PCI: register busn_res for root buses	2012-06-13 15:42:24 -06:00
pci_msi.c
pci_psycho.c
pci_sabre.c
pci_schizo.c
pci_sun4v_asm.S
pci_sun4v.c	arch/sparc/kernel/pci_sun4v.c: removes unnecessary semicolon	2012-09-21 12:08:56 -07:00
pci_sun4v.h
pci.c	mm: kill vma flag VM_RESERVED and mm->reserved_vm counter	2012-10-09 16:22:19 +09:00
pcic.c	Merge branch 'pci/myron-pcibios_setup' into next	2012-07-05 15:31:05 -06:00
pcr.c	sparc64: Add PCR ops for SPARC-T4.	2012-08-18 23:26:19 -07:00
perf_event.c	sparc64: Update generic comments in perf event code to match reality.	2012-08-18 23:26:21 -07:00
pmc.c
power.c
process_32.c	sparc32, copy_thread: Clear TIF_USEDFPU flag of created task instead of current	2012-07-26 16:49:40 -07:00
process_64.c
prom_32.c
prom_64.c	sparc: fix format string argument for prom_printf()	2012-10-02 23:20:34 -04:00
prom_common.c	sparc: fix sparc64 build due to leon.h inclusion	2012-05-29 12:47:38 -07:00
prom_irqtrans.c
prom.h
psycho_common.c
psycho_common.h
ptrace_32.c
ptrace_64.c
reboot.c
rtrap_32.S	sparc32: introduce support for run-time patching for all shared assembler code	2012-05-27 23:52:49 -07:00
rtrap_64.S
sbus.c
setup_32.c	sparc32: centralize all mmu context handling in srmmu.c	2012-07-26 16:46:16 -07:00
setup_64.c	sparc64: Add detection for features new in SPARC-T4.	2012-08-18 23:02:36 -07:00
signal32.c	compat: move compat_siginfo_t definition to asm/compat.h	2012-10-06 03:05:16 +09:00
signal_32.c	new helper: signal_delivered()	2012-06-01 12:58:52 -04:00
signal_64.c	new helper: signal_delivered()	2012-06-01 12:58:52 -04:00
sigutil_32.c
sigutil_64.c
sigutil.h
smp_32.c	Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-21 19:43:57 -07:00
smp_64.c	SPARC: SMP: Remove call to ipi_call_lock_irq()/ipi_call_unlock_irq()	2012-06-05 17:27:13 +02:00
sparc_ksyms_32.c	sparc32: Implement hard_smp_processor_id() via instruction patching.	2012-05-14 13:31:38 -07:00
sparc_ksyms_64.c
spiterrs.S
sstate.c
stacktrace.c
starfire.c
sun4d_irq.c	sparc32: remove remaining users of btfixup	2012-05-14 14:05:08 -07:00
sun4d_smp.c	Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-21 19:43:57 -07:00
sun4m_irq.c	sparc32: remove remaining users of btfixup	2012-05-14 14:05:08 -07:00
sun4m_smp.c	Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-21 19:43:57 -07:00
sun4v_ivec.S
sun4v_tlb_miss.S	sparc64: Support transparent huge pages.	2012-10-09 16:23:06 +09:00
sys32.S	compat: fs: Generic compat_sys_sendfile implementation	2012-10-02 21:35:55 -04:00
sys_sparc32.c	compat: fs: Generic compat_sys_sendfile implementation	2012-10-02 21:35:55 -04:00
sys_sparc_32.c	sparc: kill ancient comment in sparc_sigaction()	2012-05-21 23:59:23 -04:00
sys_sparc_64.c	sparc64: do not clobber personality flags in sys_sparc64_personality()	2012-08-02 00:26:50 -07:00
syscalls.S	Revert strace hiccups fix.	2012-10-05 20:39:04 -07:00
sysfs.c
systbls_32.S
systbls_64.S
systbls.h
tadpole.c
time_32.c	sparc32: remove runtime btfix support	2012-05-14 14:05:09 -07:00
time_64.c
trampoline_32.S	sparc32,leon: always include leon_smp + leon_mm in build	2012-05-27 23:52:47 -07:00
trampoline_64.S
traps_32.c	sparc32: Kill off software 32-bit multiply/divide routines.	2012-05-15 11:23:47 -07:00
traps_64.c	Revert strace hiccups fix.	2012-10-05 20:39:04 -07:00
tsb.S	sparc64: Support transparent huge pages.	2012-10-09 16:23:06 +09:00
ttable_32.S	sparc32: move trap table to a separate file	2012-05-19 23:27:25 -07:00
ttable_64.S	sparc64: renamed ttable.S to ttable_64.S	2012-05-19 23:26:41 -07:00
una_asm_32.S
una_asm_64.S
unaligned_32.c
unaligned_64.c
us2e_cpufreq.c
us3_cpufreq.c
utrap.S
vio.c	Fix typo in printed messages	2012-06-24 11:03:52 -07:00
viohs.c
visemul.c
vmlinux.lds.S	sparc32: add support for run-time patching of leon/sun single instructions	2012-05-27 23:52:43 -07:00
windows.c
winfixup.S
wof.S	sparc32: introduce support for run-time patching for all shared assembler code	2012-05-27 23:52:49 -07:00
wuf.S	sparc32: introduce support for run-time patching for all shared assembler code	2012-05-27 23:52:49 -07:00