Re: [Intel-gfx] [PATCH v17 3/7] drm/i915: Init obj state in intel_atomic_get_old/new_global_obj_state

[Jani Nikula <jani.nikula@linux.intel.com>]

On Thu, 20 Feb 2020, Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> wrote:
> We might be willing to call intel_atomic_get_old_global_obj_state
> and intel_atomic_get_new_global_obj_state right away, however
> those are not initializing global obj state as
> intel_atomic_get_global_obj_state does.
> Extracted initializing part to separate function and now using this
> also in intel_atomic_get_old_global_obj_state and intel_atomic_get_new_global_obj_state
>
> v2: - Fixed typo in function call
>
> Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_bw.c | 28 ++++++++++++++++++++++++-
>  drivers/gpu/drm/i915/display/intel_bw.h |  9 ++++++++
>  2 files changed, 36 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c
> index 58b264bc318d..ff57277e8880 100644
> --- a/drivers/gpu/drm/i915/display/intel_bw.c
> +++ b/drivers/gpu/drm/i915/display/intel_bw.c
> @@ -374,7 +374,33 @@ static unsigned int intel_bw_data_rate(struct drm_i915_private *dev_priv,
>  	return data_rate;
>  }
>  
> -static struct intel_bw_state *
> +struct intel_bw_state *
> +intel_atomic_get_old_bw_state(struct intel_atomic_state *state)
> +{
> +	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
> +	struct intel_global_state *bw_state;
> +
> +	bw_state = intel_atomic_get_old_global_obj_state(state, &dev_priv->bw_obj);
> +	if (IS_ERR(bw_state))
> +		return ERR_CAST(bw_state);
> +
> +	return to_intel_bw_state(bw_state);
> +}
> +
> +struct intel_bw_state *
> +intel_atomic_get_new_bw_state(struct intel_atomic_state *state)
> +{
> +	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
> +	struct intel_global_state *bw_state;
> +	bw_state = intel_atomic_get_new_global_obj_state(state, &dev_priv->bw_obj);
> +
> +	if (IS_ERR(bw_state))
> +		return ERR_CAST(bw_state);
> +
> +	return to_intel_bw_state(bw_state);
> +}
> +
> +struct intel_bw_state *
>  intel_atomic_get_bw_state(struct intel_atomic_state *state)
>  {
>  	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
> diff --git a/drivers/gpu/drm/i915/display/intel_bw.h b/drivers/gpu/drm/i915/display/intel_bw.h
> index a8aa7624c5aa..ac004d6f4276 100644
> --- a/drivers/gpu/drm/i915/display/intel_bw.h
> +++ b/drivers/gpu/drm/i915/display/intel_bw.h
> @@ -24,6 +24,15 @@ struct intel_bw_state {
>  
>  #define to_intel_bw_state(x) container_of((x), struct intel_bw_state, base)
>  
> +struct intel_bw_state *
> +intel_atomic_get_old_bw_state(struct intel_atomic_state *state);
> +
> +struct intel_bw_state *
> +intel_atomic_get_new_bw_state(struct intel_atomic_state *state);
> +
> +struct intel_bw_state *
> +intel_atomic_get_bw_state(struct intel_atomic_state *state);
> +

I'm trying to promote a convention that a module foo_bar.[ch] would
export functions prefixed foo_bar_. Here, intel_bw_* like below.

BR,
Jani.


>  void intel_bw_init_hw(struct drm_i915_private *dev_priv);
>  int intel_bw_init(struct drm_i915_private *dev_priv);
>  int intel_bw_atomic_check(struct intel_atomic_state *state);

-- 
Jani Nikula, Intel Open Source Graphics Center
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