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Author SHA1 Message Date
Michal Simek
0691c97d74 microblaze: Use MICROBLAZE_TLB_SIZE in asm code 
TLB size was hardcoded in asm code. This patch brings ability
to change TLB size only in one place. (mmu.h).

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:24 +02:00
Michal Simek
9373dd6ab1 microblaze: Kconfig Fix - pci 
I forget to remove pci Kconfig option.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:24 +02:00
Michal Simek
78ebfa884b microblaze: Adding likely macros 
On the base on GCOV analytics is helpful to add likely/unlikely
macros.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:24 +02:00
Michal Simek
13851966da microblaze: Add .type and .size to ASM functions 
Cachegrind analysis need this fix to be able to log asm functions.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:24 +02:00
Michal Simek
e84452dd9f microblaze: Fix TLB macros 
To be able to do trace TLB operations.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:24 +02:00
Michal Simek
3765d6958d microblaze: Use instruction with delay slot 
Sync labels.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:23 +02:00
Michal Simek
bd1637d63e microblaze: Remove additional resr and rear loading 
RESR and REAR uses the same regs in whole file.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:23 +02:00
Michal Simek
b175bcfe31 microblaze: Change register usage for ESR and EAR 
This change synchronize register usage in code.
ESR = R4
EAR = R3

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:23 +02:00
Michal Simek
7a6bbdc930 microblaze: Prepare work for optimization in exception code 
Any sync branch must follow mts instructions not mfs.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:23 +02:00
Michal Simek
708e7153d6 microblaze: Add DEBUG option 
Disable debug option in asm code.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:23 +02:00
Michal Simek
ee68f1745e microblaze: Support systems without lmb bram 
When the system has no lmb bram, main memory should be start from
zero because of microblaze vectors.

DTS fragment could look like:
	DDR2_SDRAM: memory@0 {
		device_type = "memory";
		reg = < 0x0 0x10000000 >;
	} ;

Then you have to setup CONFIG_KERNEL_BASE_ADDR=0 which caused
that kernel physical start address will be zero. On reset vector place
will be jump to 0x100 and on 0x100 starts kernel text.

You have to solve how to load the kernel before cpu starts.
Tested with XMD.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:23 +02:00
Michal Simek
89ae9753ae microblaze: uaccess: Sync strlen, strnlen, copy_to/from_user 
Last sync.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:23 +02:00
Michal Simek
94804a9b3d microblaze: uaccess: Unify __copy_tofrom_user 
Move to generic location.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:22 +02:00
Michal Simek
cca79120c2 microblaze: uaccess: Move functions to generic location 
noMMU and MMU use them.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:22 +02:00
Michal Simek
ef4e277b5d microblaze: uaccess: Fix put_user for noMMU 
Here is small regression on dhrystone tests and I think
that on all benchmarking tests. It is due to better checking
mechanism in put_user macro

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:22 +02:00
Michal Simek
3a6d77245e microblaze: uaccess: Fix get_user macro for noMMU 
Use unified version.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:22 +02:00
Michal Simek
527bdb52d5 microblaze: uaccess: fix clear_user for noMMU kernel 
Previous patches fixed only MMU version and this is the first
patch for noMMU kernel

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:21 +02:00
Michal Simek
40e11e3380 microblaze: uaccess: Fix strncpy_from_user function 
Generic implementation for noMMU and MMU version

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:21 +02:00
Michal Simek
4270690bd4 microblaze: uaccess: fix copy_from_user macro 
copy_from_user macro also use copy_tofrom_user function

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:21 +02:00
Michal Simek
cc5a428b7a microblaze: uaccess: copy_to_user unification 
noMMU and MMU kernel will use copy copy_tofrom_user
asm implementation.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:20 +02:00
Michal Simek
0dcb409de7 microblaze: uaccess: sync put/get/clear_user macros 
Add macro description and resort.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:20 +02:00
Michal Simek
8b651aa4a7 microblaze: uaccess: fix put_user and get_user macros 
Use FIXUP macros and resort them.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:20 +02:00
Michal Simek
c77a9c4bb7 microblaze: uaccess: fix __get_user_asm macro 
It is used __FIXUP_SECTION and __EX_TABLE_SECTION macros.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:20 +02:00
Michal Simek
40b1156db0 microblaze: uaccess: fix clean user macro 
This is the first patch which does uaccess unification.
I choosed to do several patches to be able to use bisect
in future if any fault happens.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:20 +02:00
Michal Simek
60a729f7bb microblaze: move noMMU __range_ok function to uaccess.h 
The same noMMU and MMU functions should be placed in
one file.

Signed-off-by: Michal Simek <monstr@monstr.eu>
 2010-04-01 08:38:20 +02:00