talos-op-linux/arch/blackfin/include/asm, branch v3.1-rc9

atomic: cleanup asm-generic atomic*.h inclusion

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

After changing all consumers of atomics to include , we ran into some compile time errors due to this dependency chain: linux/atomic.h -> asm/atomic.h -> asm-generic/atomic-long.h where atomic-long.h could use funcs defined later in linux/atomic.h without a prototype. This patches moves the code that includes asm-generic/atomic*.h to linux/atomic.h. Archs that need need to select CONFIG_GENERIC_ATOMIC64 from now on (some of them used to include it unconditionally). Compile tested on i386 and x86_64 with allnoconfig. Signed-off-by: Arun Sharma Cc: Eric Dumazet Cc: Ingo Molnar Cc: David Miller Acked-by: Mike Frysinger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

atomic: move atomic_add_unless to generic code

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

This is in preparation for more generic atomic primitives based on __atomic_add_unless. Signed-off-by: Arun Sharma Signed-off-by: Hans-Christian Egtvedt Reviewed-by: Eric Dumazet Cc: Ingo Molnar Cc: David Miller Acked-by: Mike Frysinger Signed-off-by: Andrew Morton 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

ptrace: unify show_regs() prototype

2011-07-26T23:49:43+00:00

[ poleg@redhat.com: no need to declare show_regs() in ptrace.h, sched.h does this ] Signed-off-by: Mike Frysinger Cc: Tejun Heo Signed-off-by: Oleg Nesterov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Blackfin: SMP: punt unused atomic_test_mask helper

2011-07-23T05:18:34+00:00

No one uses this func, so just punt it. Signed-off-by: Mike Frysinger

Blackfin: irqs: do not trace arch_local_{,irq_} functions

2011-07-23T05:18:33+00:00

Do not trace arch_local_save_flags(), arch_local_irq_*() and friends. Although they are marked inline, gcc may still make a function out of them and add it to the pool of functions that are traced by the function tracer. This can cause undesirable results (kernel panic, triple faults, etc). Add the notrace notation to prevent them from ever being traced. Signed-off-by: Steven Rostedt 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: 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

Blackfin: gpio/ints: generalize pint logic

2011-07-23T05:18:27+00:00

Have the logic that uses peripheral interrupt blocks key off of pint defines rather than CPU names so that things are generalized across families. Signed-off-by: Mike Frysinger

talos-op-linux/arch/blackfin/include/asm, branch v3.1-rc9

atomic: cleanup asm-generic atomic*.h inclusion

atomic: move atomic_add_unless to generic code

atomic: use

ptrace: unify show_regs() prototype

Blackfin: SMP: punt unused atomic_test_mask helper

Blackfin: irqs: do not trace arch_local_{*,irq_*} functions

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

Blackfin: dpmc: optimize hibernate/resume path

Blackfin: dpmc: relocate hibernate helper macros

Blackfin: gpio/ints: generalize pint logic

Blackfin: irqs: do not trace arch_local_{,irq_} functions