Chris Metcalf 47d632f9f8 arch/tile: optimize get_user/put_user and friends ... Use direct load/store for the get_user/put_user. Previously, we would call out to a helper routine that would do the appropriate thing and then return, handling the possible exception internally. Now we inline the load or store, along with a "we succeeded" indication in a register; if the load or store faults, we write a "we failed" indication into the same register and then return to the following instruction. This is more efficient and gives us more compact code, as well as being more in line with what other architectures do. The special futex assembly source file for TILE-Gx also disappears in this change; we just use the same inlining idiom there as well, putting the appropriate atomic operations directly into futex_atomic_op_inuser() (and thus into the FUTEX_WAIT function). The underlying atomic copy_from_user, copy_to_user functions were renamed using the (cryptic) x86 convention as copy_from_user_ll and copy_to_user_ll. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>		2012-05-25 12:48:23 -04:00
..
asm-offsets.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
atomic_32.h	arch/tile: optimize get_user/put_user and friends	2012-05-25 12:48:23 -04:00
atomic_64.h	Disintegrate asm/system.h for Tile	2012-03-28 18:30:03 +01:00
atomic.h	tile: fix multiple build failures from system.h dismantle	2012-04-02 11:57:37 -04:00
auxvec.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
backtrace.h	arch/tile: refactor backtracing code	2011-05-02 13:49:14 -04:00
barrier.h	Disintegrate asm/system.h for Tile	2012-03-28 18:30:03 +01:00
bitops_32.h	Disintegrate asm/system.h for Tile	2012-03-28 18:30:03 +01:00
bitops_64.h	arch/tile: fix gcc 4.6 warnings in <asm/bitops_64.h>	2012-04-02 12:00:15 -04:00
bitops.h	arch/tile: finish enabling support for TILE-Gx 64-bit chip	2011-05-12 15:52:12 -04:00
bitsperlong.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
byteorder.h	arch/tile: support building big-endian kernel	2012-05-25 12:48:22 -04:00
cache.h	arch/tile: catch up with section naming convention in 2.6.35	2011-03-01 16:18:52 -05:00
cacheflush.h	Disintegrate asm/system.h for Tile	2012-03-28 18:30:03 +01:00
checksum.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
cmpxchg.h	tile: fix multiple build failures from system.h dismantle	2012-04-02 11:57:37 -04:00
compat.h	[PATCH v3] ipc: provide generic compat versions of IPC syscalls	2012-03-15 13:13:38 -04:00
current.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
delay.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
dma-mapping.h	tile,mn10300: add device parameter to dma_cache_sync()	2011-05-04 14:41:36 -04:00
dma.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
edac.h	drivers/edac: provide support for tile architecture	2011-03-10 13:30:14 -05:00
elf.h	arch/tile: support building big-endian kernel	2012-05-25 12:48:22 -04:00
exec.h	Disintegrate asm/system.h for Tile	2012-03-28 18:30:03 +01:00
fixmap.h	arch/tile: remove useless set_fixmap_nocache() macro	2011-06-15 10:35:38 -04:00
ftrace.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
futex.h	arch/tile: optimize get_user/put_user and friends	2012-05-25 12:48:23 -04:00
hardirq.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
hardwall.h	arch/tile: more /proc and /sys file support	2011-05-27 10:39:05 -04:00
highmem.h	highmem: kill all __kmap_atomic()	2012-03-20 21:48:30 +08:00
homecache.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
hugetlb.h	arch/tile: support 4KB page size as well as 64KB	2011-03-10 13:17:53 -05:00
hv_driver.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
hw_irq.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
ide.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
io.h	tile: don't panic on iomap	2011-12-04 16:00:07 +02:00
irq.h	arch/tile: use 0 for IRQ_RESCHEDULE instead of 1	2012-04-02 12:00:16 -04:00
irqflags.h	arch/tile: use interrupt critical sections less	2012-05-25 12:48:20 -04:00
Kbuild	arch/tile: add the <arch> headers to the set of installed kernel headers	2011-11-03 16:58:48 -04:00
kexec.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
kmap_types.h	arch/tile: complete migration to new kmap_atomic scheme	2010-11-01 15:30:36 -04:00
linkage.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
memprof.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
mman.h	arch/tile: provide a definition of MAP_STACK	2010-10-14 15:09:02 -04:00
mmu_context.h	tile: replace mm->cpu_vm_mask with mm_cpumask()	2011-05-04 14:41:44 -04:00
mmu.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
mmzone.h	Fix node_start/end_pfn() definition for mm/page_cgroup.c	2011-06-27 14:13:09 -07:00
page.h	arch/tile: kernel-related cleanups from removing static page size	2011-05-04 14:41:13 -04:00
pci.h	arch/tile: fix a couple of functions that should be __init	2012-04-25 12:45:26 -04:00
percpu.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
pgalloc.h	arch/tile: support 4KB page size as well as 64KB	2011-03-10 13:17:53 -05:00
pgtable_32.h	arch/tile: allow building Linux with transparent huge pages enabled	2012-05-25 12:48:21 -04:00
pgtable_64.h	arch/tile: allow building Linux with transparent huge pages enabled	2012-05-25 12:48:21 -04:00
pgtable.h	arch/tile: allow building Linux with transparent huge pages enabled	2012-05-25 12:48:21 -04:00
processor.h	arch/tile: support signal "exception-trace" hook	2011-05-19 22:55:59 -04:00
ptrace.h	ptrace: unify show_regs() prototype	2011-07-26 16:49:43 -07:00
sections.h	arch/tile: Miscellaneous cleanup changes.	2010-07-06 13:41:51 -04:00
setup.h	Disintegrate asm/system.h for Tile	2012-03-28 18:30:03 +01:00
sigcontext.h	arch/tile: avoid ISO namespace pollution with <asm/sigcontext.h>	2011-11-03 16:58:36 -04:00
sigframe.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
siginfo.h	arch/tile: Fix a couple of issues with the COMPAT code for TILE-Gx.	2010-08-13 08:32:21 -04:00
signal.h	UAPI: Split trivial #if defined(__KERNEL__) && X conditionals	2011-12-13 15:07:49 +00:00
smp.h	smp: introduce a generic on_each_cpu_mask() function	2012-03-28 17:14:35 -07:00
spinlock_32.h	Disintegrate asm/system.h for Tile	2012-03-28 18:30:03 +01:00
spinlock_64.h	arch/tile: use atomic exchange in arch_write_unlock()	2012-04-02 12:13:49 -04:00
spinlock_types.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
spinlock.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
stack.h	arch/tile: various bugs in stack backtracer	2012-04-02 12:12:45 -04:00
stat.h	arch/tile: various header improvements for building drivers	2011-05-04 14:40:54 -04:00
string.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
swab.h	arch/tile: various header improvements for building drivers	2011-05-04 14:40:54 -04:00
switch_to.h	Disintegrate asm/system.h for Tile	2012-03-28 18:30:03 +01:00
syscall.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
syscalls.h	arch/tile: Use <asm-generic/syscalls.h>	2010-10-14 14:34:33 -04:00
thread_info.h	arch/tile: fix up some issues in calling do_work_pending()	2012-05-16 16:01:16 -04:00
tile-desc_32.h	arch/tile: factor out <arch/opcode.h> header	2011-11-03 16:58:54 -04:00
tile-desc_64.h	arch/tile: factor out <arch/opcode.h> header	2011-11-03 16:58:54 -04:00
tile-desc.h	arch/tile: factor out <arch/opcode.h> header	2011-11-03 16:58:54 -04:00
timex.h	Disintegrate asm/system.h for Tile	2012-03-28 18:30:03 +01:00
tlb.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
tlbflush.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
topology.h	arch/tile: disable SD_WAKE_AFFINE flag on CPU/NODE scheduling domain	2011-05-04 14:40:16 -04:00
traps.h	arch/tile: work around a hardware issue with the return-address stack	2012-04-02 12:12:48 -04:00
uaccess.h	arch/tile: optimize get_user/put_user and friends	2012-05-25 12:48:23 -04:00
unaligned.h	Disintegrate asm/system.h for Tile	2012-03-28 18:30:03 +01:00
unistd.h	arch/tile: cleanups for tilegx compat mode	2011-05-19 22:56:13 -04:00
user.h	arch/tile: core support for Tilera 32-bit chips.	2010-06-04 17:11:18 -04:00
vga.h	arch/tile: various header improvements for building drivers	2011-05-04 14:40:54 -04:00