From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1A062C072A2 for ; Fri, 17 Nov 2023 07:14:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6133410E71B; Fri, 17 Nov 2023 07:14:37 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id CDB3A10E71B for ; Fri, 17 Nov 2023 07:14:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1700205275; x=1731741275; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=8QrVuxMz+d10MISgleFV3QVyYE0RTw8nLxDccOw4L8U=; b=fxAFOWFL4QMUGIWjnO4f0MHbN8NartU91ELznmO2YG896Yy/PPoMqnK0 poEBvCWFtMAn8YrFS7HItbwQKfhutoH20lTBUf0CAyK9OYfAfPmKaNlZT icQ/TbiHVaeMXbTgr4BhT5VPNCGcpDRpnq5wflsVtKskVem5BbyZxszFp eykldEc8hKXmBAX6vD0UMfvI36Cw+hEVflPFmQgiX4gUXQx9k/z5xwX2j DxxbHGt7THcmg3vIErGMFvSDLwZGFFm/EDX2h2xqyMI0JwZ8AmwCODUNh t1S7IPS1s15AvqPF7u0MGnhKTzOqGZCZ8OnBIRTr2O0MaekHDc5EEIBeV A==; X-IronPort-AV: E=McAfee;i="6600,9927,10896"; a="388403854" X-IronPort-AV: E=Sophos;i="6.04,206,1695711600"; d="scan'208";a="388403854" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Nov 2023 23:14:34 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10896"; a="759090098" X-IronPort-AV: E=Sophos;i="6.04,206,1695711600"; d="scan'208";a="759090098" Received: from stinkpipe.fi.intel.com (HELO stinkbox) ([10.237.72.74]) by orsmga007.jf.intel.com with SMTP; 16 Nov 2023 23:14:31 -0800 Received: by stinkbox (sSMTP sendmail emulation); Fri, 17 Nov 2023 09:14:31 +0200 Date: Fri, 17 Nov 2023 09:14:31 +0200 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: Maarten Lankhorst Message-ID: References: <20231109153450.142185-1-maarten.lankhorst@linux.intel.com> <20231109153450.142185-3-maarten.lankhorst@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20231109153450.142185-3-maarten.lankhorst@linux.intel.com> X-Patchwork-Hint: comment Subject: Re: [Intel-gfx] [PATCH 3/3] drm/i915: Use a different vblank worker for atomic unpin X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On Thu, Nov 09, 2023 at 04:34:50PM +0100, Maarten Lankhorst wrote: > For the atomic codepath we unpin_work in old_plane_state to unpin the > old fb. As this happened after swapping state, this is allowed. > > Use the unpin_work only as a barrier, and keep doing the actual > unpinning in the atomic path. > > Signed-off-by: Maarten Lankhorst > --- > .../gpu/drm/i915/display/intel_atomic_plane.c | 18 ++++++++++++ > .../gpu/drm/i915/display/intel_atomic_plane.h | 2 ++ > drivers/gpu/drm/i915/display/intel_crtc.c | 28 +++++++++++++++++++ > 3 files changed, 48 insertions(+) > > diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c > index 06c2455bdd788..6ddb4f4ec79ac 100644 > --- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c > +++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c > @@ -1164,6 +1164,9 @@ intel_cleanup_plane_fb(struct drm_plane *plane, > intel_display_rps_mark_interactive(dev_priv, state, false); > > /* Should only be called after a successful intel_prepare_plane_fb()! */ > + if (old_plane_state->unpin_work.vblank) > + drm_vblank_work_flush(&old_plane_state->unpin_work); This feels rather convoluted. Can't we just schedule the cleanup work to the vblank worker instead of the normal wq? > + > intel_plane_unpin_fb(old_plane_state); > } > > @@ -1176,3 +1179,18 @@ void intel_plane_helper_add(struct intel_plane *plane) > { > drm_plane_helper_add(&plane->base, &intel_plane_helper_funcs); > } > + > +/* Completion is enough */ > +static void intel_plane_cursor_vblank_work(struct kthread_work *base) > +{ } > + > +void intel_plane_init_cursor_vblank_work(struct intel_plane_state *old_plane_state, > + struct intel_plane_state *new_plane_state) > +{ > + if (!old_plane_state->ggtt_vma || > + old_plane_state->ggtt_vma == new_plane_state->ggtt_vma) > + return; > + > + drm_vblank_work_init(&old_plane_state->unpin_work, old_plane_state->uapi.crtc, > + intel_plane_cursor_vblank_work); > +} > diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.h b/drivers/gpu/drm/i915/display/intel_atomic_plane.h > index 191dad0efc8e6..5a897cf6fa021 100644 > --- a/drivers/gpu/drm/i915/display/intel_atomic_plane.h > +++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.h > @@ -66,5 +66,7 @@ int intel_plane_check_src_coordinates(struct intel_plane_state *plane_state); > void intel_plane_set_invisible(struct intel_crtc_state *crtc_state, > struct intel_plane_state *plane_state); > void intel_plane_helper_add(struct intel_plane *plane); > +void intel_plane_init_cursor_vblank_work(struct intel_plane_state *old_plane_state, > + struct intel_plane_state *new_plane_state); > > #endif /* __INTEL_ATOMIC_PLANE_H__ */ > diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c b/drivers/gpu/drm/i915/display/intel_crtc.c > index 1fd068e6e26ca..755c40fd0ac13 100644 > --- a/drivers/gpu/drm/i915/display/intel_crtc.c > +++ b/drivers/gpu/drm/i915/display/intel_crtc.c > @@ -559,6 +559,19 @@ void intel_pipe_update_start(struct intel_atomic_state *state, > if (intel_crtc_needs_vblank_work(new_crtc_state)) > intel_crtc_vblank_work_init(new_crtc_state); > > + if (state->base.legacy_cursor_update) { > + struct intel_plane *plane; > + struct intel_plane_state *old_plane_state, *new_plane_state; > + int i; > + > + for_each_oldnew_intel_plane_in_state(state, plane, old_plane_state, > + new_plane_state, i) { > + if (old_plane_state->uapi.crtc == &crtc->base) > + intel_plane_init_cursor_vblank_work(old_plane_state, > + new_plane_state); > + } > + } > + > intel_crtc_vblank_evade_scanlines(state, crtc, &min, &max, &vblank_start); > if (min <= 0 || max <= 0) > goto irq_disable; > @@ -721,6 +734,21 @@ void intel_pipe_update_end(struct intel_atomic_state *state, > new_crtc_state->uapi.event = NULL; > } > > + if (state->base.legacy_cursor_update) { > + struct intel_plane *plane; > + struct intel_plane_state *old_plane_state; > + int i; > + > + for_each_old_intel_plane_in_state(state, plane, old_plane_state, i) { > + if (old_plane_state->uapi.crtc == &crtc->base && > + old_plane_state->unpin_work.vblank) { > + drm_vblank_work_schedule(&old_plane_state->unpin_work, > + drm_crtc_accurate_vblank_count(&crtc->base) + 1, > + false); > + } > + } > + } > + > /* > * Send VRR Push to terminate Vblank. If we are already in vblank > * this has to be done _after_ sampling the frame counter, as > -- > 2.39.2 -- Ville Syrjälä Intel