From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH 23/40] drm/i915: Fix drain latency precision multipler for VLV Date: Thu, 31 Jul 2014 18:16:54 +0300 Message-ID: <20140731151654.GP4193@intel.com> References: <1403910271-24984-1-git-send-email-ville.syrjala@linux.intel.com> <1403910271-24984-24-git-send-email-ville.syrjala@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id 488496E140 for ; Thu, 31 Jul 2014 08:16:58 -0700 (PDT) Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Paulo Zanoni Cc: Intel Graphics Development List-Id: intel-gfx@lists.freedesktop.org On Thu, Jul 31, 2014 at 12:08:09PM -0300, Paulo Zanoni wrote: > 2014-06-27 20:04 GMT-03:00 : > > From: Zhenyu Wang > > > = > I guess this affects both VLV and CHV, but my CHV docs still contain > 16/32 instead of 32/64. I didn't check any VLV docs. Any pointers, or > an explanation on the commit message? I added a FIXME about that in patch 26. According to this http://patchwork.freedesktop.org/patch/29860/ CHV has been confirmed to use the 32/64 values too. Hopefully we'll get the spec updated too... > = > = > > Signed-off-by: Zhenyu Wang > > --- > > drivers/gpu/drm/i915/i915_reg.h | 50 ++++++++++++++++++++-------------= -------- > > drivers/gpu/drm/i915/intel_pm.c | 12 +++++----- > > 2 files changed, 31 insertions(+), 31 deletions(-) > > > > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i91= 5_reg.h > > index 191df9e..7ab5a03 100644 > > --- a/drivers/gpu/drm/i915/i915_reg.h > > +++ b/drivers/gpu/drm/i915/i915_reg.h > > @@ -3909,47 +3909,47 @@ enum punit_power_well { > > > > /* drain latency register values*/ > > #define DRAIN_LATENCY_PRECISION_32 32 > > -#define DRAIN_LATENCY_PRECISION_16 16 > > +#define DRAIN_LATENCY_PRECISION_64 64 > > #define VLV_DDL1 (VLV_DISPLAY_BASE + 0x70050) > > -#define DDL_CURSORA_PRECISION_32 (1<<31) > > -#define DDL_CURSORA_PRECISION_16 (0<<31) > > +#define DDL_CURSORA_PRECISION_64 (1<<31) > > +#define DDL_CURSORA_PRECISION_32 (0<<31) > > #define DDL_CURSORA_SHIFT 24 > > -#define DDL_SPRITEB_PRECISION_32 (1<<23) > > -#define DDL_SPRITEB_PRECISION_16 (0<<23) > > +#define DDL_SPRITEB_PRECISION_64 (1<<23) > > +#define DDL_SPRITEB_PRECISION_32 (0<<23) > > #define DDL_SPRITEB_SHIFT 16 > > -#define DDL_SPRITEA_PRECISION_32 (1<<15) > > -#define DDL_SPRITEA_PRECISION_16 (0<<15) > > +#define DDL_SPRITEA_PRECISION_64 (1<<15) > > +#define DDL_SPRITEA_PRECISION_32 (0<<15) > > #define DDL_SPRITEA_SHIFT 8 > > -#define DDL_PLANEA_PRECISION_32 (1<<7) > > -#define DDL_PLANEA_PRECISION_16 (0<<7) > > +#define DDL_PLANEA_PRECISION_64 (1<<7) > > +#define DDL_PLANEA_PRECISION_32 (0<<7) > > #define DDL_PLANEA_SHIFT 0 > > > > #define VLV_DDL2 (VLV_DISPLAY_BASE + 0x70054) > > -#define DDL_CURSORB_PRECISION_32 (1<<31) > > -#define DDL_CURSORB_PRECISION_16 (0<<31) > > +#define DDL_CURSORB_PRECISION_64 (1<<31) > > +#define DDL_CURSORB_PRECISION_32 (0<<31) > > #define DDL_CURSORB_SHIFT 24 > > -#define DDL_SPRITED_PRECISION_32 (1<<23) > > -#define DDL_SPRITED_PRECISION_16 (0<<23) > > +#define DDL_SPRITED_PRECISION_64 (1<<23) > > +#define DDL_SPRITED_PRECISION_32 (0<<23) > > #define DDL_SPRITED_SHIFT 16 > > -#define DDL_SPRITEC_PRECISION_32 (1<<15) > > -#define DDL_SPRITEC_PRECISION_16 (0<<15) > > +#define DDL_SPRITEC_PRECISION_64 (1<<15) > > +#define DDL_SPRITEC_PRECISION_32 (0<<15) > > #define DDL_SPRITEC_SHIFT 8 > > -#define DDL_PLANEB_PRECISION_32 (1<<7) > > -#define DDL_PLANEB_PRECISION_16 (0<<7) > > +#define DDL_PLANEB_PRECISION_64 (1<<7) > > +#define DDL_PLANEB_PRECISION_32 (0<<7) > > #define DDL_PLANEB_SHIFT 0 > > > > #define VLV_DDL3 (VLV_DISPLAY_BASE + 0x70058) > > -#define DDL_CURSORC_PRECISION_32 (1<<31) > > -#define DDL_CURSORC_PRECISION_16 (0<<31) > > +#define DDL_CURSORC_PRECISION_64 (1<<31) > > +#define DDL_CURSORC_PRECISION_32 (0<<31) > > #define DDL_CURSORC_SHIFT 24 > > -#define DDL_SPRITEF_PRECISION_32 (1<<23) > > -#define DDL_SPRITEF_PRECISION_16 (0<<23) > > +#define DDL_SPRITEF_PRECISION_64 (1<<23) > > +#define DDL_SPRITEF_PRECISION_32 (0<<23) > > #define DDL_SPRITEF_SHIFT 16 > > -#define DDL_SPRITEE_PRECISION_32 (1<<15) > > -#define DDL_SPRITEE_PRECISION_16 (0<<15) > > +#define DDL_SPRITEE_PRECISION_64 (1<<15) > > +#define DDL_SPRITEE_PRECISION_32 (0<<15) > > #define DDL_SPRITEE_SHIFT 8 > > -#define DDL_PLANEC_PRECISION_32 (1<<7) > > -#define DDL_PLANEC_PRECISION_16 (0<<7) > > +#define DDL_PLANEC_PRECISION_64 (1<<7) > > +#define DDL_PLANEC_PRECISION_32 (0<<7) > > #define DDL_PLANEC_SHIFT 0 > > > > /* FIFO watermark sizes etc */ > > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/int= el_pm.c > > index 55f3e6b..9413184 100644 > > --- a/drivers/gpu/drm/i915/intel_pm.c > > +++ b/drivers/gpu/drm/i915/intel_pm.c > > @@ -1253,13 +1253,13 @@ static bool vlv_compute_drain_latency(struct dr= m_device *dev, > > > > entries =3D (clock / 1000) * pixel_size; > > *plane_prec_mult =3D (entries > 256) ? > > - DRAIN_LATENCY_PRECISION_32 : DRAIN_LATENCY_PRECISION_16; > > + DRAIN_LATENCY_PRECISION_64 : DRAIN_LATENCY_PRECISION_32; > > *plane_dl =3D (64 * (*plane_prec_mult) * 4) / ((clock / 1000) * > > pixel_size); > > > > entries =3D (clock / 1000) * 4; /* BPP is always 4 for cursor= */ > > *cursor_prec_mult =3D (entries > 256) ? > > - DRAIN_LATENCY_PRECISION_32 : DRAIN_LATENCY_PRECISION_16; > > + DRAIN_LATENCY_PRECISION_64 : DRAIN_LATENCY_PRECISION_32; > > *cursor_dl =3D (64 * (*cursor_prec_mult) * 4) / ((clock / 1000)= * 4); > > > > return true; > > @@ -1285,9 +1285,9 @@ static void vlv_update_drain_latency(struct drm_d= evice *dev) > > if (vlv_compute_drain_latency(dev, 0, &plane_prec_mult, &planea= _dl, > > &cursor_prec_mult, &cursora_dl)) { > > cursora_prec =3D (cursor_prec_mult =3D=3D DRAIN_LATENCY= _PRECISION_32) ? > > - DDL_CURSORA_PRECISION_32 : DDL_CURSORA_PRECISIO= N_16; > > + DDL_CURSORA_PRECISION_32 : DDL_CURSORA_PRECISIO= N_64; > > planea_prec =3D (plane_prec_mult =3D=3D DRAIN_LATENCY_P= RECISION_32) ? > > - DDL_PLANEA_PRECISION_32 : DDL_PLANEA_PRECISION_= 16; > > + DDL_PLANEA_PRECISION_32 : DDL_PLANEA_PRECISION_= 64; > > > > I915_WRITE(VLV_DDL1, cursora_prec | > > (cursora_dl << DDL_CURSORA_SHIFT) | > > @@ -1298,9 +1298,9 @@ static void vlv_update_drain_latency(struct drm_d= evice *dev) > > if (vlv_compute_drain_latency(dev, 1, &plane_prec_mult, &planeb= _dl, > > &cursor_prec_mult, &cursorb_dl)) { > > cursorb_prec =3D (cursor_prec_mult =3D=3D DRAIN_LATENCY= _PRECISION_32) ? > > - DDL_CURSORB_PRECISION_32 : DDL_CURSORB_PRECISIO= N_16; > > + DDL_CURSORB_PRECISION_32 : DDL_CURSORB_PRECISIO= N_64; > > planeb_prec =3D (plane_prec_mult =3D=3D DRAIN_LATENCY_P= RECISION_32) ? > > - DDL_PLANEB_PRECISION_32 : DDL_PLANEB_PRECISION_= 16; > > + DDL_PLANEB_PRECISION_32 : DDL_PLANEB_PRECISION_= 64; > > > > I915_WRITE(VLV_DDL2, cursorb_prec | > > (cursorb_dl << DDL_CURSORB_SHIFT) | > > -- > > 1.8.5.5 > > > > _______________________________________________ > > Intel-gfx mailing list > > Intel-gfx@lists.freedesktop.org > > http://lists.freedesktop.org/mailman/listinfo/intel-gfx > = > = > = > -- = > Paulo Zanoni -- = Ville Syrj=E4l=E4 Intel OTC