Paul E. McKenney 20151169f1 powerpc: Make 64-bit non-VMX __copy_tofrom_user bi-endian ...

The powerpc 64-bit __copy_tofrom_user() function uses shifts to handle
unaligned invocations.  However, these shifts were designed for
big-endian systems: On little-endian systems, they must shift in the
opposite direction.

This commit relies on the C preprocessor to insert the correct shifts
into the assembly code.

[ This is a rare but nasty LE issue. Most of the time we use the POWER7
optimised __copy_tofrom_user_power7 loop, but when it hits an exception
we fall back to the base __copy_tofrom_user loop. - Anton ]

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

2013-12-30 14:02:30 +11:00

..

alloc.c

Disintegrate asm/system.h for PowerPC

2012-03-28 18:30:02 +01:00

checksum_32.S

…

checksum_64.S

powerpc: Restore registers on error exit from csum_partial_copy_generic()

2013-10-03 17:22:42 +10:00

checksum_wrappers_64.c

powerpc: various straight conversions from module.h --> export.h

2011-10-31 19:30:44 -04:00

code-patching.c

powerpc: Don't use __put_user() in patch_instruction

2012-09-05 16:05:23 +10:00

copy_32.S

powerpc: Fix incorrect .stabs entry for copy_32.S

2010-09-02 14:07:34 +10:00

copypage_64.S

powerpc: POWER7 optimised copy_page using VMX and enhanced prefetch

2012-07-03 14:14:44 +10:00

copypage_power7.S

powerpc/pseries: Improve stream generation comments in copypage/user

2013-06-01 08:29:26 +10:00

copyuser_64.S

powerpc: Make 64-bit non-VMX __copy_tofrom_user bi-endian

2013-12-30 14:02:30 +11:00

copyuser_power7.S

powerpc: Fix endian issues in VMX copy loops

2013-10-11 16:48:25 +11:00

crtsavres.S

powerpc: Put the gpr save/restore functions in their own section

2012-07-11 14:19:59 +10:00

devres.c

powerpc: various straight conversions from module.h --> export.h

2011-10-31 19:30:44 -04:00

div64.S

…

feature-fixups-test.S

powerpc: Ensure the else case of feature sections will fit

2011-01-21 14:08:33 +11:00

feature-fixups.c

powerpc: Copy down exception vectors after feature fixups

2011-11-16 14:47:54 +11:00

hweight_64.S

powerpc: Fix usage of register macros getting ready for %r0 change

2012-07-10 19:17:55 +10:00

ldstfp.S

powerpc: Fixes for instructions not using correct register naming

2012-07-10 19:18:16 +10:00

locks.c

powerpc: Fix little endian lppaca, slb_shadow and dtl_entry

2013-08-14 15:33:35 +10:00

Makefile

powerpc: Add VMX optimised xor for RAID5

2013-10-30 16:02:28 +11:00

mem_64.S

powerpc: Change mtcrf to use real register names

2012-07-10 19:18:11 +10:00

memcpy_64.S

powerpc: Change mtcrf to use real register names

2012-07-10 19:18:11 +10:00

memcpy_power7.S

powerpc: Fix endian issues in VMX copy loops

2013-10-11 16:48:25 +11:00

rheap.c

powerpc: various straight conversions from module.h --> export.h

2011-10-31 19:30:44 -04:00

sstep.c

powerpc: Fix Unaligned LE Floating Point Loads and Stores

2013-10-30 16:01:36 +11:00

string_64.S

powerpc: Optimise the 64bit optimised __clear_user

2012-07-03 14:14:48 +10:00

string.S

powerpc: 64bit optimised __clear_user

2012-07-03 14:14:41 +10:00

usercopy_64.c

…

vmx-helper.c

powerpc: POWER7 optimised copy_page using VMX and enhanced prefetch

2012-07-03 14:14:44 +10:00

xor_vmx.c

powerpc: Add VMX optimised xor for RAID5

2013-10-30 16:02:28 +11:00