> What operations are you using to implement spinlocks?
The cpu provides atomic exchange instruction (atomic Read/write
semantics) which forms the back end of spin lock code.
__raw_spin_trylock( ) atomically swaps the lock memory with a reg (set
to 1)
Using a pool of spinlocks rather that
What operations are you using to implement spinlocks?
The cpu provides atomic exchange instruction (atomic Read/write
semantics) which forms the back end of spin lock code.
__raw_spin_trylock( ) atomically swaps the lock memory with a reg (set
to 1)
Using a pool of spinlocks rather that
Vineet Gupta wrote:
I'm trying to implement atomic ops for a CPU which has no inherent
support for Read-Modify-Write Ops. Instead of using a global spin lock
which protects all the atomic APIs, I want to use a spin lock per
instance of atomic_t.
What operations are you using to implement
> I'm trying to implement atomic ops for a CPU which has no inherent
> support for Read-Modify-Write Ops. Instead of using a global spin lock
> which protects all the atomic APIs, I want to use a spin lock per
> instance of atomic_t. This works well when atomic_t is unitary and
> statically
I'm trying to implement atomic ops for a CPU which has no inherent
support for Read-Modify-Write Ops. Instead of using a global spin lock
which protects all the atomic APIs, I want to use a spin lock per
instance of atomic_t. This works well when atomic_t is unitary and
statically
Vineet Gupta wrote:
I'm trying to implement atomic ops for a CPU which has no inherent
support for Read-Modify-Write Ops. Instead of using a global spin lock
which protects all the atomic APIs, I want to use a spin lock per
instance of atomic_t.
What operations are you using to implement
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