[Intel-gfx] [PATCH 1/2] drm/i915: Introduce execlist_port_* accessors

[Mika Kuoppala]

Chris Wilson <chris at chris-wilson.co.uk> writes:

> Quoting Mika Kuoppala (2017-10-31 15:27:33)
>> +static inline struct execlist_port *
>> +execlists_port_next(struct intel_engine_execlists * const execlists,
>> +                   const struct execlist_port * const port)
>> +{
>> +       const unsigned int n = __port_add(port_index(port, execlists),
>> +                                         1,
>> +                                         execlists->port_mask);
>
> How does this compare to
>
> 	if (port++ == execlists->port + execlists->port_mask)
> 		port = execlists->port;
>
> 	return port;
> ?

add/remove: 0/0 grow/shrink: 1/1 up/down: 29/-29 (0)
function                                     old     new   delta
i915_guc_irq_handler                        2584    2613     +29
intel_lrc_irq_handler                       2963    2934     -29
Total: Before=1123627, After=1123627, chg +0.00%

:)

-Mika