linux/arch/microblaze/lib, branch v3.4.84Linux kernel source treehttps://git.amat.us/linux/atom/arch/microblaze/lib?h=v3.4.842012-03-30T10:10:03ZMerge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into next2012-03-30T10:10:03ZMichal Simekmonstr@monstr.eu2012-03-30T10:10:03Zurn:sha1:6a4770e335bd4df0a4577146f76e116ab6e23f40microblaze: Fix stack usage in PAGE_SIZE copy_tofrom_user2012-03-30T09:37:13ZMichal Simekmonstr@monstr.eu2012-03-30T06:21:38Zurn:sha1:ac64a9caa55bdfd8d24784f25c68cb7919ddabe3
If access to user space failed we need to reconstruct
stack pointer and restore all register.
This patch fixed problem introduces by:
"microblaze: Add loop unrolling for PAGE in copy_tofrom_user"
(sha1: ebe211254bfa6295f4ab0b33c7c881bdfabbab60)
Signed-off-by: Michal Simek <monstr@monstr.eu>
Disintegrate asm/system.h for Microblaze2012-03-28T17:30:02ZDavid Howellsdhowells@redhat.com2012-03-28T17:30:02Zurn:sha1:c40d04df152a1111c5bbcb632278394dabd2b73d
Disintegrate asm/system.h for Microblaze. Not compiled.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: microblaze-uclinux@itee.uq.edu.au
microblaze: Add __cmpdi22012-01-05T07:22:01ZMichal Simekmonstr@monstr.eu2011-11-29T12:05:30Zurn:sha1:eecb20720f1b29019725515051e41bc7c079f91f
Some new kernel configurations require __cmpdi2 function.
Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Use delay slot in __strnlen_user, __strncpy_user2011-10-14T10:24:34ZMichal Simekmonstr@monstr.eu2011-10-02T11:07:02Zurn:sha1:cb5edfe3e553d930f9a13cb75cfe395ee38cde23
Use delay slot to speedup if maxlen is zero.
Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Add __ucmpdi2() helper function2011-10-14T10:24:32ZMichal Simekmonstr@monstr.eu2011-09-23T06:46:24Zurn:sha1:c8ae8a820880cf8bf3588752ac0ded6d4d218d50
Add missing __ucmpdi2 helper function.
Error log:
kernel/built-in.o: In function `print_graph_duration':
: undefined reference to `__ucmpdi2'
kernel/built-in.o: In function `print_graph_duration':
: undefined reference to `__ucmpdi2'
Based on MIPS code.
Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Add loop unrolling for PAGE in copy_tofrom_user2011-10-14T10:24:26ZMichal Simekmonstr@monstr.eu2011-06-10T08:49:08Zurn:sha1:ebe211254bfa6295f4ab0b33c7c881bdfabbab60
Increase performance by loop unrolling.
Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Simplify logic for unaligned byte copying2011-10-14T10:24:25ZMichal Simekmonstr@monstr.eu2011-06-10T09:08:57Zurn:sha1:782d491fc210fac03976d01071145728339b6887
Save jump instruction for unaligned byte copying.
Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Change label names - copy_tofrom_user2011-10-14T10:24:22ZMichal Simekmonstr@monstr.eu2011-06-10T09:07:55Zurn:sha1:c83858b3e6e8db9dbb17641de1a2420bb102ae31
Change label name to be prepared for loop unrolling.
Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Separate fixup section definition2011-10-14T10:24:22ZMichal Simekmonstr@monstr.eu2011-06-10T09:05:45Zurn:sha1:eedac7914dd4d6effa0b970a36efd898c9fc4873
Move fixups below appropriate code.
Signed-off-by: Michal Simek <monstr@monstr.eu>