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drm/i915/gt: Use memset_p to clear the ports

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Put memset_p to use to clear the array of pointers used for tracking the
ELSP.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200106114234.2529613-6-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2020-01-06 11:42:34 +00:00
parent 8413502238
commit ab17e6caa7
1 changed files with 10 additions and 5 deletions
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15
drivers/gpu/drm/i915/gt/intel_lrc.c
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@@ -1744,6 +1744,11 @@ static void set_preempt_timeout(struct intel_engine_cs *engine)
active_preempt_timeout(engine));
}
static inline void clear_ports(struct i915_request **ports, int count)
{
memset_p((void **)ports, NULL, count);
}
static void execlists_dequeue(struct intel_engine_cs *engine)
{
struct intel_engine_execlists * const execlists = &engine->execlists;
@@ -2104,10 +2109,9 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
goto skip_submit;
}
clear_ports(port + 1, last_port - port);
memset(port + 1, 0, (last_port - port) * sizeof(*port));
execlists_submit_ports(engine);
set_preempt_timeout(engine);
} else {
skip_submit:
@@ -2122,13 +2126,14 @@ cancel_port_requests(struct intel_engine_execlists * const execlists)
for (port = execlists->pending; *port; port++)
execlists_schedule_out(*port);
memset(execlists->pending, 0, sizeof(execlists->pending));
clear_ports(execlists->pending, ARRAY_SIZE(execlists->pending));
/* Mark the end of active before we overwrite *active */
for (port = xchg(&execlists->active, execlists->pending); *port; port++)
execlists_schedule_out(*port);
WRITE_ONCE(execlists->active,
memset(execlists->inflight, 0, sizeof(execlists->inflight)));
clear_ports(execlists->inflight, ARRAY_SIZE(execlists->inflight));
WRITE_ONCE(execlists->active, execlists->inflight);
}
static inline void