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d="scan'208";a="306182924" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.174]) by orsmga006.jf.intel.com with SMTP; 14 Sep 2020 07:24:08 -0700 Received: by stinkbox (sSMTP sendmail emulation); Mon, 14 Sep 2020 17:24:06 +0300 Date: Mon, 14 Sep 2020 17:24:06 +0300 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: =?iso-8859-1?Q?Jos=E9?= Roberto de Souza Message-ID: <20200914142406.GN6112@intel.com> References: <20200901010924.235808-1-jose.souza@intel.com> <20200901010924.235808-2-jose.souza@intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200901010924.235808-2-jose.souza@intel.com> X-Patchwork-Hint: comment User-Agent: Mutt/1.10.1 (2018-07-13) Subject: Re: [Intel-gfx] [PATCH 2/4] drm/i915/display: Fix state of PSR2 sub features 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 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On Mon, Aug 31, 2020 at 06:09:22PM -0700, Jos=E9 Roberto de Souza wrote: > In case PSR2 is disabled by debugfs dc3co_enabled and > psr2_sel_fetch_enabled were still being set causing some code paths > to be executed were it should not. > We have tests for PSR1 and PSR2 so keep those features disabled when > PSR1 is active but PSR2 is supported is important. > = > Cc: Gwan-gyeong Mun > Cc: Ville Syrj=E4l=E4 > Signed-off-by: Jos=E9 Roberto de Souza > --- > drivers/gpu/drm/i915/display/intel_psr.c | 11 +++++++---- > 1 file changed, 7 insertions(+), 4 deletions(-) > = > diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i= 915/display/intel_psr.c > index 4e09ae61d4aa..6698d0209879 100644 > --- a/drivers/gpu/drm/i915/display/intel_psr.c > +++ b/drivers/gpu/drm/i915/display/intel_psr.c > @@ -962,12 +962,14 @@ static void intel_psr_enable_locked(struct drm_i915= _private *dev_priv, > dev_priv->psr.psr2_enabled =3D intel_psr2_enabled(dev_priv, crtc_state); > dev_priv->psr.busy_frontbuffer_bits =3D 0; > dev_priv->psr.pipe =3D to_intel_crtc(crtc_state->uapi.crtc)->pipe; > - dev_priv->psr.dc3co_enabled =3D !!crtc_state->dc3co_exitline; > + dev_priv->psr.dc3co_enabled =3D !!crtc_state->dc3co_exitline && > + dev_priv->psr.psr2_enabled; > dev_priv->psr.transcoder =3D crtc_state->cpu_transcoder; > /* DC5/DC6 requires at least 6 idle frames */ > val =3D usecs_to_jiffies(intel_get_frame_time_us(crtc_state) * 6); > dev_priv->psr.dc3co_exit_delay =3D val; > - dev_priv->psr.psr2_sel_fetch_enabled =3D crtc_state->enable_psr2_sel_fe= tch; > + dev_priv->psr.psr2_sel_fetch_enabled =3D crtc_state->enable_psr2_sel_fe= tch && > + dev_priv->psr.psr2_enabled; > = > /* > * If a PSR error happened and the driver is reloaded, the EDP_PSR_IIR > @@ -1178,7 +1180,7 @@ void intel_psr2_program_trans_man_trk_ctl(const str= uct intel_crtc_state *crtc_st > struct i915_psr *psr =3D &dev_priv->psr; > = > if (!HAS_PSR2_SEL_FETCH(dev_priv) || > - !crtc_state->enable_psr2_sel_fetch) > + !dev_priv->psr.psr2_sel_fetch_enabled) > return; > = > intel_de_write(dev_priv, PSR2_MAN_TRK_CTL(psr->transcoder), > @@ -1189,8 +1191,9 @@ void intel_psr2_sel_fetch_update(struct intel_atomi= c_state *state, > struct intel_crtc *crtc) > { > struct intel_crtc_state *crtc_state =3D intel_atomic_get_new_crtc_state= (state, crtc); > + struct drm_i915_private *dev_priv =3D to_i915(crtc->base.dev); > = > - if (!crtc_state->enable_psr2_sel_fetch) > + if (!dev_priv->psr.psr2_sel_fetch_enabled) This looks rather sketchy. AFAICS this gets called during atomic_check() so looking at stuff outside the crtc state is very suspicious. > return; > = > crtc_state->psr2_man_track_ctl =3D PSR2_MAN_TRK_CTL_ENABLE | > -- = > 2.28.0 -- = Ville Syrj=E4l=E4 Intel _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx