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drm/i915/guc: Remove client->submissions

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The engine->guc_id is GuC FW defined and it is not guaranteed to be
below I915_NUM_ENGINES, so we shouldn't use it with the i915-defined
client->submissions, as we might overflow.
Instead of fixing it, just get rid of client->submissions, because the
information we get from it is not interesting anymore now that we only
have 1 client.

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190814002145.29056-1-daniele.ceraolospurio@intel.com
This commit is contained in:
Daniele Ceraolo Spurio 2019-08-13 17:21:45 -07:00 committed by Chris Wilson
parent be6133b891
commit 0b08ae0301
3 changed files with 8 additions and 28 deletions
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2
drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
View file

@ -470,8 +470,6 @@ static void guc_add_request(struct intel_guc *guc, struct i915_request *rq)
guc_wq_item_append(client, engine->guc_id, ctx_desc,
ring_tail, rq->fence.seqno);
guc_ring_doorbell(client);
client->submissions[engine->guc_id] += 1;
}
/*

2
drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h
View file

@ -51,8 +51,6 @@ struct intel_guc_client {
/* Protects GuC client's WQ access */
spinlock_t wq_lock;
/* Per-engine counts of GuC submissions */
u64 submissions[I915_NUM_ENGINES];
/* For testing purposes, use nop WQ items instead of real ones */
I915_SELFTEST_DECLARE(bool use_nop_wqi);

32
drivers/gpu/drm/i915/i915_debugfs.c
View file

@ -1882,31 +1882,11 @@ static void i915_guc_log_info(struct seq_file *m,
}
}
static void i915_guc_client_info(struct seq_file *m,
struct drm_i915_private *dev_priv,
struct intel_guc_client *client)
{
struct intel_engine_cs *engine;
u64 tot = 0;
seq_printf(m, "\tPriority %d, GuC stage index: %u, PD offset 0x%x\n",
client->priority, client->stage_id, client->proc_desc_offset);
seq_printf(m, "\tDoorbell id %d, offset: 0x%lx\n",
client->doorbell_id, client->doorbell_offset);
for_each_uabi_engine(engine, dev_priv) {
u64 submissions = client->submissions[engine->guc_id];
tot += submissions;
seq_printf(m, "\tSubmissions: %llu %s\n",
submissions, engine->name);
}
seq_printf(m, "\tTotal: %llu\n", tot);
}
static int i915_guc_info(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
const struct intel_guc *guc = &dev_priv->gt.uc.guc;
struct intel_guc_client *client = guc->execbuf_client;
if (!USES_GUC(dev_priv))
return -ENODEV;
@ -1922,9 +1902,13 @@ static int i915_guc_info(struct seq_file *m, void *data)
seq_printf(m, "\t%*pb\n", GUC_NUM_DOORBELLS, guc->doorbell_bitmap);
seq_printf(m, "Doorbell next cacheline: 0x%x\n", guc->db_cacheline);
seq_printf(m, "\nGuC execbuf client @ %p:\n", guc->execbuf_client);
i915_guc_client_info(m, dev_priv, guc->execbuf_client);
seq_printf(m, "\nGuC execbuf client @ %p:\n", client);
seq_printf(m, "\tPriority %d, GuC stage index: %u, PD offset 0x%x\n",
client->priority,
client->stage_id,
client->proc_desc_offset);
seq_printf(m, "\tDoorbell id %d, offset: 0x%lx\n",
client->doorbell_id, client->doorbell_offset);
/* Add more as required ... */
return 0;