On 15/05/2017 18:06, Michal Wajdeczko wrote:
Usefulness of these stats was over-advertised.

v2: remove duplicated engine stats (Chris)

Suggested-by: Chris Wilson <ch...@chris-wilson.co.uk>
Signed-off-by: Michal Wajdeczko <michal.wajdec...@intel.com>
Cc: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospu...@intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c        | 19 -------------------
 drivers/gpu/drm/i915/i915_guc_submission.c |  3 ---
 drivers/gpu/drm/i915/intel_uc.c            |  7 -------
 drivers/gpu/drm/i915/intel_uc.h            | 10 ----------
 4 files changed, 39 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
b/drivers/gpu/drm/i915/i915_debugfs.c
index bd9abef..fdb2fd0 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2514,9 +2514,6 @@ 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->guc;
-       struct intel_engine_cs *engine;
-       enum intel_engine_id id;
-       u64 total;

        if (!check_guc_submission(m))
                return 0;
@@ -2525,22 +2522,6 @@ 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\n", guc->db_cacheline);

-       seq_printf(m, "GuC total action count: %llu\n", guc->action_count);
-       seq_printf(m, "GuC action failure count: %u\n", guc->action_fail);
-       seq_printf(m, "GuC last action command: 0x%x\n", guc->action_cmd);
-       seq_printf(m, "GuC last action status: 0x%x\n", guc->action_status);
-       seq_printf(m, "GuC last action error code: %d\n", guc->action_err);
-
-       total = 0;
-       seq_printf(m, "\nGuC submissions:\n");
-       for_each_engine(engine, dev_priv, id) {
-               u64 submissions = guc->submissions[id];
-               total += submissions;
-               seq_printf(m, "\t%-24s: %10llu, last seqno 0x%08x\n",
-                       engine->name, submissions, guc->last_seqno[id]);
-       }
-       seq_printf(m, "\t%s: %llu\n", "Total", total);
-
        seq_printf(m, "\nGuC execbuf client @ %p:\n", guc->execbuf_client);
        i915_guc_client_info(m, dev_priv, guc->execbuf_client);

diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c 
b/drivers/gpu/drm/i915/i915_guc_submission.c
index 7e85b5a..edda4da 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -618,9 +618,6 @@ static void __i915_guc_submit(struct drm_i915_gem_request 
*rq)
        if (b_ret)
                client->b_fail += 1;

-       guc->submissions[engine_id] += 1;
-       guc->last_seqno[engine_id] = rq->global_seqno;
-
        spin_unlock_irqrestore(&client->wq_lock, flags);
 }

diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 07c5658..d27b527 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -440,9 +440,6 @@ int intel_guc_send_mmio(struct intel_guc *guc, const u32 
*action, u32 len)
        mutex_lock(&guc->send_mutex);
        intel_uncore_forcewake_get(dev_priv, guc->send_regs.fw_domains);

-       dev_priv->guc.action_count += 1;
-       dev_priv->guc.action_cmd = action[0];
-
        for (i = 0; i < len; i++)
                I915_WRITE(guc_send_reg(guc, i), action[i]);

@@ -471,11 +468,7 @@ int intel_guc_send_mmio(struct intel_guc *guc, const u32 
*action, u32 len)
                DRM_WARN("INTEL_GUC_SEND: Action 0x%X failed;"
                         " ret=%d status=0x%08X response=0x%08X\n",
                         action[0], ret, status, I915_READ(SOFT_SCRATCH(15)));
-
-               dev_priv->guc.action_fail += 1;
-               dev_priv->guc.action_err = ret;
        }
-       dev_priv->guc.action_status = status;

        intel_uncore_forcewake_put(dev_priv, guc->send_regs.fw_domains);
        mutex_unlock(&guc->send_mutex);
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index 7618b71..b432747 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -195,16 +195,6 @@ struct intel_guc {
        DECLARE_BITMAP(doorbell_bitmap, GUC_NUM_DOORBELLS);
        uint32_t db_cacheline;          /* Cyclic counter mod pagesize  */

-       /* Action status & statistics */
-       uint64_t action_count;          /* Total commands issued        */
-       uint32_t action_cmd;            /* Last command word            */
-       uint32_t action_status;         /* Last return status           */
-       uint32_t action_fail;           /* Total number of failures     */
-       int32_t action_err;             /* Last error code              */
-
-       uint64_t submissions[I915_NUM_ENGINES];
-       uint32_t last_seqno[I915_NUM_ENGINES];
-
        /* GuC's FW specific registers used in MMIO send */
        struct {
                u32 base;


Can't see that we need these.

Acked-by: Tvrtko Ursulin <tvrtko.ursu...@intel.com>

Regards,

Tvrtko
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