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[2/2] drm/i915/guc: Remove obsolete comments and remove unused variable

Message ID 20170911131000.23446-2-michal.winiarski@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Michał Winiarski Sept. 11, 2017, 1:10 p.m. UTC
Originally removed in:
c1adab970348 ("drm/i915/guc: Remove failed doorbell stat from debugfs")
f1448a62a103 ("drm/i915/guc: Remove last submission result from debugfs")

Were accidentaly restored in:
925344ccc91d ("BackMerge tag 'v4.12-rc5' into drm-next")

We can also remove unused variable and replace it with a WARN.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
---
 drivers/gpu/drm/i915/i915_guc_submission.c | 3 +--
 drivers/gpu/drm/i915/intel_uc.h            | 4 ----
 2 files changed, 1 insertion(+), 6 deletions(-)

Comments

Chris Wilson Sept. 11, 2017, 1:14 p.m. UTC | #1
Quoting Michał Winiarski (2017-09-11 14:10:00)
> Originally removed in:
> c1adab970348 ("drm/i915/guc: Remove failed doorbell stat from debugfs")
> f1448a62a103 ("drm/i915/guc: Remove last submission result from debugfs")
> 
> Were accidentaly restored in:
> 925344ccc91d ("BackMerge tag 'v4.12-rc5' into drm-next")
> 
> We can also remove unused variable and replace it with a WARN.
> 
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
> Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
> ---
>  drivers/gpu/drm/i915/i915_guc_submission.c | 3 +--
>  drivers/gpu/drm/i915/intel_uc.h            | 4 ----
>  2 files changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
> index 48a1e9349a2c..8a550785b257 100644
> --- a/drivers/gpu/drm/i915/i915_guc_submission.c
> +++ b/drivers/gpu/drm/i915/i915_guc_submission.c
> @@ -602,7 +602,6 @@ static void __i915_guc_submit(struct drm_i915_gem_request *rq)
>         struct intel_guc *guc = &rq->i915->guc;
>         struct i915_guc_client *client = guc->execbuf_client;
>         unsigned long flags;
> -       int b_ret;
>  
>         /* WA to flush out the pending GMADR writes to ring buffer. */
>         if (i915_vma_is_map_and_fenceable(rq->ring->vma))
> @@ -611,7 +610,7 @@ static void __i915_guc_submit(struct drm_i915_gem_request *rq)
>         spin_lock_irqsave(&client->wq_lock, flags);
>  
>         guc_wq_item_append(client, rq);
> -       b_ret = guc_ring_doorbell(client);
> +       WARN_ON(guc_ring_doorbell(client));
>  
>         client->submissions[engine_id] += 1;
>  
> diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
> index 22ae52b17b0f..69daf4c01cd0 100644
> --- a/drivers/gpu/drm/i915/intel_uc.h
> +++ b/drivers/gpu/drm/i915/intel_uc.h
> @@ -59,10 +59,6 @@ struct drm_i915_gem_request;
>   *                available in the work queue (note, the queue is shared,
>   *                not per-engine). It is OK for this to be nonzero, but
>   *                it should not be huge!

no_wq_space^^ is also dead


> - *   b_fail: failed to ring the doorbell. This should never happen, unless
> - *           somehow the hardware misbehaves, or maybe if the GuC firmware
> - *           crashes? We probably need to reset the GPU to recover.
> - *   retcode: errno from last guc_submit()
>   */
>  struct i915_guc_client {
>         struct i915_vma *vma;

Reviewed-y Chris Wilson <chris@chris-wilson.co.uk>
-Chris
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index 48a1e9349a2c..8a550785b257 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -602,7 +602,6 @@  static void __i915_guc_submit(struct drm_i915_gem_request *rq)
 	struct intel_guc *guc = &rq->i915->guc;
 	struct i915_guc_client *client = guc->execbuf_client;
 	unsigned long flags;
-	int b_ret;
 
 	/* WA to flush out the pending GMADR writes to ring buffer. */
 	if (i915_vma_is_map_and_fenceable(rq->ring->vma))
@@ -611,7 +610,7 @@  static void __i915_guc_submit(struct drm_i915_gem_request *rq)
 	spin_lock_irqsave(&client->wq_lock, flags);
 
 	guc_wq_item_append(client, rq);
-	b_ret = guc_ring_doorbell(client);
+	WARN_ON(guc_ring_doorbell(client));
 
 	client->submissions[engine_id] += 1;
 
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index 22ae52b17b0f..69daf4c01cd0 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -59,10 +59,6 @@  struct drm_i915_gem_request;
  *                available in the work queue (note, the queue is shared,
  *                not per-engine). It is OK for this to be nonzero, but
  *                it should not be huge!
- *   b_fail: failed to ring the doorbell. This should never happen, unless
- *           somehow the hardware misbehaves, or maybe if the GuC firmware
- *           crashes? We probably need to reset the GPU to recover.
- *   retcode: errno from last guc_submit()
  */
 struct i915_guc_client {
 	struct i915_vma *vma;