Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
> The code to check for execlists completion is generic, so move it to
> intel_engine_cs.c
>
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_gem.c | 8 +++----
> drivers/gpu/drm/i915/intel_engine_cs.c | 13 +++++++++++
> drivers/gpu/drm/i915/intel_lrc.c | 28 -----------------------
> drivers/gpu/drm/i915/intel_lrc.h | 1 -
> drivers/gpu/drm/i915/intel_ringbuffer.h | 1 +
> drivers/gpu/drm/i915/selftests/i915_gem_request.c | 2 +-
> 6 files changed, 19 insertions(+), 34 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index 5efb18a229cc..7c20601fe1de 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -2959,8 +2959,8 @@ i915_gem_idle_work_handler(struct work_struct *work)
> * new request is submitted.
> */
> wait_for(READ_ONCE(dev_priv->gt.active_requests) ||
> - intel_execlists_idle(dev_priv), 10);
> -
> + intel_engines_are_idle(dev_priv),
> + 10);
> if (READ_ONCE(dev_priv->gt.active_requests))
> return;
>
> @@ -2985,7 +2985,7 @@ i915_gem_idle_work_handler(struct work_struct *work)
> if (dev_priv->gt.active_requests)
> goto out_unlock;
>
> - if (wait_for(intel_execlists_idle(dev_priv), 10))
> + if (wait_for(intel_engines_are_idle(dev_priv), 10))
> DRM_ERROR("Timeout waiting for engines to idle\n");
>
> for_each_engine(engine, dev_priv, id) {
> @@ -4287,7 +4287,7 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
> * reset the GPU back to its idle, low power state.
> */
> WARN_ON(dev_priv->gt.awake);
> - WARN_ON(!intel_execlists_idle(dev_priv));
> + WARN_ON(!intel_engines_are_idle(dev_priv));
>
> /*
> * Neither the BIOS, ourselves or any other kernel
> diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
> index 53d65dc0c9fb..5fd4883db235 100644
> --- a/drivers/gpu/drm/i915/intel_engine_cs.c
> +++ b/drivers/gpu/drm/i915/intel_engine_cs.c
> @@ -1102,6 +1102,19 @@ bool intel_engine_is_idle(struct intel_engine_cs *engine)
> return true;
> }
>
> +bool intel_engines_are_idle(struct drm_i915_private *dev_priv)
> +{
> + struct intel_engine_cs *engine;
> + enum intel_engine_id id;
> +
> + for_each_engine(engine, dev_priv, id) {
> + if (!intel_engine_is_idle(engine))
> + return false;
> + }
> +
> + return true;
> +}
> +
> #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
> #include "selftests/mock_engine.c"
> #endif
> diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
> index f9a8545474bc..3834a84fe084 100644
> --- a/drivers/gpu/drm/i915/intel_lrc.c
> +++ b/drivers/gpu/drm/i915/intel_lrc.c
> @@ -498,34 +498,6 @@ static bool execlists_elsp_idle(struct intel_engine_cs *engine)
> return !engine->execlist_port[0].request;
> }
>
> -/**
> - * intel_execlists_idle() - Determine if all engine submission ports are idle
> - * @dev_priv: i915 device private
> - *
> - * Return true if there are no requests pending on any of the submission ports
> - * of any engines.
> - */
> -bool intel_execlists_idle(struct drm_i915_private *dev_priv)
> -{
> - struct intel_engine_cs *engine;
> - enum intel_engine_id id;
> -
> - if (!i915.enable_execlists)
> - return true;
> -
> - for_each_engine(engine, dev_priv, id) {
> - /* Interrupt/tasklet pending? */
> - if (test_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted))
> - return false;
> -
> - /* Both ports drained, no more ELSP submission? */
> - if (!execlists_elsp_idle(engine))
> - return false;
> - }
> -
> - return true;
> -}
> -
> static bool execlists_elsp_ready(const struct intel_engine_cs *engine)
> {
> const struct execlist_port *port = engine->execlist_port;
> diff --git a/drivers/gpu/drm/i915/intel_lrc.h b/drivers/gpu/drm/i915/intel_lrc.h
> index c8009c7bfbdd..5fc07761caff 100644
> --- a/drivers/gpu/drm/i915/intel_lrc.h
> +++ b/drivers/gpu/drm/i915/intel_lrc.h
> @@ -88,6 +88,5 @@ uint64_t intel_lr_context_descriptor(struct i915_gem_context *ctx,
> int intel_sanitize_enable_execlists(struct drm_i915_private *dev_priv,
> int enable_execlists);
> void intel_execlists_enable_submission(struct drm_i915_private *dev_priv);
> -bool intel_execlists_idle(struct drm_i915_private *dev_priv);
>
> #endif /* _INTEL_LRC_H_ */
> diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
> index 38580765bfd6..55a6a3f8274c 100644
> --- a/drivers/gpu/drm/i915/intel_ringbuffer.h
> +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
> @@ -665,5 +665,6 @@ static inline u32 *gen8_emit_pipe_control(u32 *batch, u32 flags, u32 offset)
> }
>
> bool intel_engine_is_idle(struct intel_engine_cs *engine);
> +bool intel_engines_are_idle(struct drm_i915_private *dev_priv);
>
> #endif /* _INTEL_RINGBUFFER_H_ */
> diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_request.c b/drivers/gpu/drm/i915/selftests/i915_gem_request.c
> index 42bdeac93324..926b24c117d6 100644
> --- a/drivers/gpu/drm/i915/selftests/i915_gem_request.c
> +++ b/drivers/gpu/drm/i915/selftests/i915_gem_request.c
> @@ -303,7 +303,7 @@ static int end_live_test(struct live_test *t)
> {
> struct drm_i915_private *i915 = t->i915;
>
> - if (wait_for(intel_execlists_idle(i915), 1)) {
> + if (wait_for(intel_engines_are_idle(i915), 1)) {
> pr_err("%s(%s): GPU not idle\n", t->func, t->name);
> return -EIO;
> }
> --
> 2.11.0
>
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> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
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