[Intel-gfx] [PATCH 01/12] drm/i915: Move psr unlock out from the pipe update critical section

Golani, Mitulkumar Ajitkumar mitulkumar.ajitkumar.golani at intel.com
Mon Sep 11 17:42:50 UTC 2023



> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of Ville
> Syrjala
> Sent: 01 September 2023 18:34
> To: intel-gfx at lists.freedesktop.org
> Subject: [Intel-gfx] [PATCH 01/12] drm/i915: Move psr unlock out from the
> pipe update critical section
> 
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Do the PSR unlock after the vblank evade critcal section is fully over, not
> before.

Typo *critical

Other changes looks good to me.
Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
> 
> Cc: Manasi Navare <navaremanasi at chromium.org>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_crtc.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c
> b/drivers/gpu/drm/i915/display/intel_crtc.c
> index 182c6dd64f47..5caa928e5ce9 100644
> --- a/drivers/gpu/drm/i915/display/intel_crtc.c
> +++ b/drivers/gpu/drm/i915/display/intel_crtc.c
> @@ -646,10 +646,8 @@ void intel_pipe_update_end(struct intel_crtc_state
> *new_crtc_state)
>  	ktime_t end_vbl_time = ktime_get();
>  	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> 
> -	intel_psr_unlock(new_crtc_state);
> -
>  	if (new_crtc_state->do_async_flip)
> -		return;
> +		goto out;
> 
>  	trace_intel_pipe_update_end(crtc, end_vbl_count, scanline_end);
> 
> @@ -709,7 +707,7 @@ void intel_pipe_update_end(struct intel_crtc_state
> *new_crtc_state)
>  	local_irq_enable();
> 
>  	if (intel_vgpu_active(dev_priv))
> -		return;
> +		goto out;
> 
>  	if (crtc->debug.start_vbl_count &&
>  	    crtc->debug.start_vbl_count != end_vbl_count) { @@ -724,4 +722,7
> @@ void intel_pipe_update_end(struct intel_crtc_state *new_crtc_state)
>  	}
> 
>  	dbg_vblank_evade(crtc, end_vbl_time);
> +
> +out:
> +	intel_psr_unlock(new_crtc_state);
>  }
> --
> 2.41.0



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