linux-toradex.git/arch/microblaze/lib/uaccess_old.S, branch v3.4.67 Linux kernel for Apalis and Colibri modules microblaze: Fix stack usage in PAGE_SIZE copy_tofrom_user 2012-03-30T09:37:13+00:00 Michal Simek monstr@monstr.eu 2012-03-30T06:21:38+00:00 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> 
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>
microblaze: Use delay slot in __strnlen_user, __strncpy_user 2011-10-14T10:24:34+00:00 Michal Simek monstr@monstr.eu 2011-10-02T11:07:02+00:00 cb5edfe3e553d930f9a13cb75cfe395ee38cde23 Use delay slot to speedup if maxlen is zero. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Use delay slot to speedup if maxlen is zero.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Add loop unrolling for PAGE in copy_tofrom_user 2011-10-14T10:24:26+00:00 Michal Simek monstr@monstr.eu 2011-06-10T08:49:08+00:00 ebe211254bfa6295f4ab0b33c7c881bdfabbab60 Increase performance by loop unrolling. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Increase performance by loop unrolling.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Simplify logic for unaligned byte copying 2011-10-14T10:24:25+00:00 Michal Simek monstr@monstr.eu 2011-06-10T09:08:57+00:00 782d491fc210fac03976d01071145728339b6887 Save jump instruction for unaligned byte copying. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Save jump instruction for unaligned byte copying.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Change label names - copy_tofrom_user 2011-10-14T10:24:22+00:00 Michal Simek monstr@monstr.eu 2011-06-10T09:07:55+00:00 c83858b3e6e8db9dbb17641de1a2420bb102ae31 Change label name to be prepared for loop unrolling. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Change label name to be prepared for loop unrolling.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Separate fixup section definition 2011-10-14T10:24:22+00:00 Michal Simek monstr@monstr.eu 2011-06-10T09:05:45+00:00 eedac7914dd4d6effa0b970a36efd898c9fc4873 Move fixups below appropriate code. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Move fixups below appropriate code.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Change label name in copy_tofrom_user 2011-10-14T10:24:21+00:00 Michal Simek monstr@monstr.eu 2011-06-10T09:03:44+00:00 9b133f8d87a460e97b63efbf421a87741a029cd0 Use label 0: for zero length copying and fixups. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Use label 0: for zero length copying and fixups.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Support word copying in copy_tofrom_user 2010-04-01T06:38:25+00:00 Michal Simek monstr@monstr.eu 2010-03-22T19:31:26+00:00 ca3865bae5ff86f5670edc9beebbd1f58c29de85 Word copying is used only for aligned addresses. Here is space for improving to use any better copying technique. Look at memcpy implementation. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Word copying is used only for aligned addresses.
Here is space for improving to use any better copying technique.
Look at memcpy implementation.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Add .type and .size to ASM functions 2010-04-01T06:38:24+00:00 Michal Simek monstr@monstr.eu 2010-03-23T07:09:32+00:00 13851966da54be8e37863aa93ee2c8f3d3a3186a Cachegrind analysis need this fix to be able to log asm functions. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Cachegrind analysis need this fix to be able to log asm functions.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze_mmu_v2: uaccess MMU update 2009-05-26T14:45:20+00:00 Michal Simek monstr@monstr.eu 2009-05-26T14:30:23+00:00 0d6de9532663a4120ce35f507f16b72df382e360 Signed-off-by: Michal Simek <monstr@monstr.eu> 
Signed-off-by: Michal Simek <monstr@monstr.eu>