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SubjectRe: [PATCH 4/7] atomics: add common header generation files
On Tue, May 29, 2018 at 07:07:43PM +0100, Mark Rutland wrote:
> +++ b/scripts/atomic/atomics.tbl
> @@ -0,0 +1,41 @@
> +# name meta args...
> +#
> +# Where meta contains a string of variants to generate.
> +# Upper-case implies _{acquire,release,relaxed} variants.
> +# Valid meta values are:
> +# * B/b - bool: returns bool
> +# * v - void: returns void
> +# * I/i - int: returns base type
> +# * R - return: returns base type (has _return variants)
> +# * F/f - fetch: returns base type (has fetch_ variants)
> +# * l - load: returns base type (has _acquire order variant)
> +# * s - store: returns void (has _release order variant)
> +#
> +# Where args contains list of type[:name], where type is:
> +# * cv - const pointer to atomic base type (atomic_t/atomic64_t/atomic_long_t)
> +# * v - pointer to atomic base type (atomic_t/atomic64_t/atomic_long_t)
> +# * i - base type (int/s64/long)
> +# * I - pointer to base type (int/s64/long)

I thought we agreed to make that 'p' instead of 'I'.

> +#
> +read l cv
> +set s v i
> +add vRF i v
> +sub vRF i v
> +inc vRF v
> +dec vRF v
> +and vF i v
> +andnot vF i v
> +or vF i v
> +xor vF i v
> +xchg I v i
> +cmpxchg I v i:old i:new
> +try_cmpxchg B v I:old i:new
> +sub_and_test b i v
> +dec_and_test b v
> +inc_and_test b v
> +add_negative b i v
> +add_unless fb v i:a i:u
> +inc_not_zero b v
> +inc_unless_negative b v
> +dec_unless_positive b v
> +dec_if_positive i v

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