On Thu, Aug 26, 2021 at 05:18:30PM +0300, Jani Nikula wrote:
> Apparently the last reader of i915->active_pipes was removed with commit
> ef79d62b5ce5 ("drm/i915: Encapsulate dbuf state handling harder"), and
> now it's only ever written to. Remove it completely.
>
> Cc: Stanislav Lisovskiy <stanislav.lisovs...@intel.com>
> Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
> Signed-off-by: Jani Nikula <jani.nik...@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_display.c | 4 +---
> drivers/gpu/drm/i915/i915_drv.h | 6 ------
> 2 files changed, 1 insertion(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c
> b/drivers/gpu/drm/i915/display/intel_display.c
> index fe5ad599c218..a692971b0209 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -3781,7 +3781,6 @@ static void intel_crtc_disable_noatomic(struct
> intel_crtc *crtc,
>
> intel_display_power_put_all_in_set(dev_priv,
> &crtc->enabled_power_domains);
>
> - dev_priv->active_pipes &= ~BIT(pipe);
> cdclk_state->min_cdclk[pipe] = 0;
> cdclk_state->min_voltage_level[pipe] = 0;
> cdclk_state->active_pipes &= ~BIT(pipe);
> @@ -12351,8 +12350,7 @@ static void intel_modeset_readout_hw_state(struct
> drm_device *dev)
> enableddisabled(crtc_state->hw.active));
> }
>
> - dev_priv->active_pipes = cdclk_state->active_pipes =
> - dbuf_state->active_pipes = active_pipes;
> + cdclk_state->active_pipes = dbuf_state->active_pipes = active_pipes;
>
> readout_plane_state(dev_priv);
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index f64ba566fe8c..033031169d74 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1015,12 +1015,6 @@ struct drm_i915_private {
>
> struct list_head global_obj_list;
>
> - /*
> - * For reading active_pipes holding any crtc lock is
> - * sufficient, for writing must hold all of them.
> - */
> - u8 active_pipes;
> -
> struct i915_wa_list gt_wa_list;
>
> struct i915_frontbuffer_tracking fb_tracking;
> --
> 2.20.1
--
Ville Syrjälä
Intel
