linux-toradex.git/arch/blackfin/mach-common, branch v3.2.50

blackfin: add module.h to files implicitly expecting to use it.

2011-10-31T23:31:02+00:00

Its presence was implicit everywhere, but we are aiming to fix that,
so call out the users explicitly.

Signed-off-by: Paul Gortmaker

Blackfin: SMP: fix scheduling deadlock

2011-10-25T23:51:29+00:00

Make sure our smp_send_reschedule() implementation matches the
scheduler_ipi() callback so that it can kick the idle cpu.

Signed-off-by: Steven Miao 
Signed-off-by: Mike Frysinger

All Arch: remove linkage for sys_nfsservctl system call

2011-08-26T22:09:58+00:00

The nfsservctl system call is now gone, so we should remove all
linkage for it.

Signed-off-by: NeilBrown 
Signed-off-by: J. Bruce Fields 
Signed-off-by: Linus Torvalds

atomic: use

2011-07-26T23:49:47+00:00

This allows us to move duplicated code in 
(atomic_inc_not_zero() for now) to 

Signed-off-by: Arun Sharma 
Reviewed-by: Eric Dumazet 
Cc: Ingo Molnar 
Cc: David Miller 
Cc: Eric Dumazet 
Acked-by: Mike Frysinger 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Blackfin: dpmc: optimize SDRAM programming slightly

2011-07-23T05:18:31+00:00

No need to reload these registers constantly since they're always
available (we're not making any function calls in between).

Signed-off-by: Mike Frysinger

Blackfin: dpmc: don't save/restore scratch registers

2011-07-23T05:18:31+00:00

The Blackfin C ABI says we do not need to save/restore R0-R3 and P0-P2
as they are available as scratch registers.  So don't bother.

Signed-off-by: Mike Frysinger

Blackfin: bf538: pull gpio/port logic out of core hibernate paths

2011-07-23T05:18:30+00:00

Re-architect how we save/restore the gpio/port logic that only pertains
to bf538/bf539 parts by pulling it out of the core code paths and pushing
it out to bf538-specific locations.

Signed-off-by: Mike Frysinger

Blackfin: dpmc: optimize hibernate/resume path

2011-07-23T05:18:29+00:00

The current save logic used in hibernation is to do a MMR load (base +
offset) into a register, and then push that onto the stack.  Then when
restoring, pop off the stack into a register followed by a MMR store
(base + offset).  These use plenty of 32bit insns rather than 16bit,
are pretty long winded, and full of pipeline bubbles.

So, by taking advantage of MMRs that are contiguous, the multi-register
push/pop insn, and register abuse, we can shrink this code considerably.

When saving, the new logic does a lot of loads into the data and pointer
registers before executing a single multi-register push insn.  Then when
restoring, we do a single multi-register pop insn followed by a lot of
stores.  Overall, this allows us to cut the insn count by ~30%, the code
size by ~45%, and drastically reduce the register hazards that trigger
bubbles in the pipeline.

Signed-off-by: Mike Frysinger

Blackfin: dpmc: do not save/restore EVT0/EVT1/EVT4 when hibernating

2011-07-23T05:18:29+00:00

EVT0 is for emulation, EVT1 is for reset, and EVT4 is the "global int
disable" region.  None of these are used by software (or even hardware),
so don't bother saving/restoring them when we hibernate since nothing
ever uses these in Linux (the only thing they would be useful for is
core-memory scratch, but that's just crazy talk).

Signed-off-by: Mike Frysinger

Blackfin: dpmc: relocate hibernate helper macros

2011-07-23T05:18:28+00:00

This defines only get used in the hibernate code, so remove them from the
global dpmc header as no one else cares.

Signed-off-by: Mike Frysinger