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drm/i915: Print execlists restart after reset 

After resetting, show the requests that each engine restarts from in the
debug log.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170204110519.7645-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
This commit is contained in:
Chris Wilson 2017-02-04 11:05:19 +00:00
parent ba318c61a9
commit 22cc440eae
1 changed files with 9 additions and 0 deletions
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9
drivers/gpu/drm/i915/intel_lrc.c
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@ -1254,6 +1254,11 @@ out:
return ret;
}
static u32 port_seqno(struct execlist_port *port)
{
return port->request ? port->request->global_seqno : 0;
}
static int gen8_init_common_ring(struct intel_engine_cs *engine)
{
struct drm_i915_private *dev_priv = engine->i915;
@ -1279,6 +1284,10 @@ static int gen8_init_common_ring(struct intel_engine_cs *engine)
/* After a GPU reset, we may have requests to replay */
clear_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted);
if (!execlists_elsp_idle(engine)) {
DRM_DEBUG_DRIVER("Restarting %s from requests [0x%x, 0x%x]\n",
engine->name,
port_seqno(&engine->execlist_port[0]),
port_seqno(&engine->execlist_port[1]));
engine->execlist_port[0].count = 0;
engine->execlist_port[1].count = 0;
execlists_submit_ports(engine);