From: Jacopo Mondi <jacopo@jmondi.org>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Jacopo Mondi <jacopo+renesas@jmondi.org>,
kieran.bingham+renesas@ideasonboard.com, airlied@linux.ie,
daniel@ffwll.ch, koji.matsuoka.xm@renesas.com, muroya@ksk.co.jp,
VenkataRajesh.Kalakodima@in.bosch.com,
Harsha.ManjulaMallikarjun@in.bosch.com,
linux-renesas-soc@vger.kernel.org,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 19/19] drm: rcar-du: kms: Update CMM in atomic commit tail
Date: Thu, 22 Aug 2019 21:19:25 +0200 [thread overview]
Message-ID: <20190822191925.dnbdihnt3ole2nqx@uno.localdomain> (raw)
In-Reply-To: <20190820184215.GM10820@pendragon.ideasonboard.com>
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Hi Laurent,
On Tue, Aug 20, 2019 at 09:42:15PM +0300, Laurent Pinchart wrote:
> Hi Jacopo,
>
> Thank you for the patch.
>
> On Sat, Jul 06, 2019 at 04:07:46PM +0200, Jacopo Mondi wrote:
> > Update CMM settings at in the atomic commit tail helper method.
> >
> > The CMM is updated with new gamma values provided to the driver
> > in the GAMMA_LUT blob property.
> >
> > Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> > ---
> > drivers/gpu/drm/rcar-du/rcar_du_kms.c | 35 +++++++++++++++++++++++++++
> > 1 file changed, 35 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
> > index b79cda2f5531..f9aece78ca5f 100644
> > --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
> > +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
> > @@ -21,6 +21,7 @@
> > #include <linux/of_platform.h>
> > #include <linux/wait.h>
> >
> > +#include "rcar_cmm.h"
> > #include "rcar_du_crtc.h"
> > #include "rcar_du_drv.h"
> > #include "rcar_du_encoder.h"
> > @@ -287,6 +288,37 @@ rcar_du_fb_create(struct drm_device *dev, struct drm_file *file_priv,
> > * Atomic Check and Update
> > */
> >
> > +static void rcar_du_atomic_commit_update_cmm(struct drm_crtc *crtc,
> > + struct drm_crtc_state *old_state)
> > +{
> > + struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);
> > + struct rcar_cmm_config cmm_config = {};
> > +
> > + if (!rcrtc->cmm || !crtc->state->color_mgmt_changed)
> > + return;
> > +
> > + if (!crtc->state->gamma_lut) {
> > + cmm_config.lut.enable = false;
> > + rcar_cmm_setup(rcrtc->cmm, &cmm_config);
> > +
> > + return;
> > + }
> > +
> > + cmm_config.lut.enable = true;
> > + cmm_config.lut.table = (struct drm_color_lut *)
> > + crtc->state->gamma_lut->data;
> > +
> > + /* Set LUT table size to 0 if entries should not be updated. */
> > + if (!old_state->gamma_lut ||
> > + old_state->gamma_lut->base.id != crtc->state->gamma_lut->base.id)
> > + cmm_config.lut.size = crtc->state->gamma_lut->length
> > + / sizeof(cmm_config.lut.table[0]);
> > + else
> > + cmm_config.lut.size = 0;
> > +
> > + rcar_cmm_setup(rcrtc->cmm, &cmm_config);
> > +}
> > +
> > static int rcar_du_atomic_check(struct drm_device *dev,
> > struct drm_atomic_state *state)
> > {
> > @@ -329,6 +361,9 @@ static void rcar_du_atomic_commit_tail(struct drm_atomic_state *old_state)
> > rcdu->dpad1_source = rcrtc->index;
> > }
> >
> > + for_each_old_crtc_in_state(old_state, crtc, crtc_state, i)
> > + rcar_du_atomic_commit_update_cmm(crtc, crtc_state);
> > +
>
> I think this looks good overall, but I wonder if we couldn't simplify
> the CMM driver suspend/resume and LUT caching due to config while not
> enabled by handling it on the DU side. I have a rework on the commit
> tail handler in progress, I'll think how this could be done. For now I
> think you can leave it as is.
>
Does this mean I have your R-b tag ? :)
Thanks
j
> > /* Apply the atomic update. */
> > drm_atomic_helper_commit_modeset_disables(dev, old_state);
> > drm_atomic_helper_commit_planes(dev, old_state,
>
> --
> Regards,
>
> Laurent Pinchart
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next prev parent reply other threads:[~2019-08-22 19:18 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-06 14:07 [PATCH v2 00/19] drm: rcar-du: Add Color Management Module (CMM) Jacopo Mondi
2019-07-06 14:07 ` [PATCH v2 01/19] dt-bindings: display: renesas,cmm: Add R-Car CMM documentation Jacopo Mondi
2019-07-08 7:58 ` Geert Uytterhoeven
2019-08-19 13:45 ` Geert Uytterhoeven
2019-08-20 7:48 ` Jacopo Mondi
2019-08-20 7:53 ` Geert Uytterhoeven
2019-08-20 8:05 ` Jacopo Mondi
2019-08-20 17:41 ` Laurent Pinchart
2019-08-20 18:08 ` Geert Uytterhoeven
2019-07-06 14:07 ` [PATCH v2 02/19] dt-bindings: display, renesas,du: Document cmms property Jacopo Mondi
2019-07-06 14:07 ` [PATCH v2 03/19] arm64: renesas: Update 'vsps' property Jacopo Mondi
2019-07-08 3:11 ` Laurent Pinchart
2019-07-09 13:10 ` Kieran Bingham
2019-08-21 12:16 ` Geert Uytterhoeven
2019-08-22 10:00 ` Jacopo Mondi
2019-08-22 15:02 ` Laurent Pinchart
2019-07-06 14:07 ` [PATCH v2 04/19] clk: renesas: r8a7796: Add CMM clocks Jacopo Mondi
2019-07-06 14:07 ` [PATCH v2 05/19] clk: renesas: r8a7795: " Jacopo Mondi
2019-07-06 14:07 ` [PATCH v2 06/19] clk: renesas: r8a77965: " Jacopo Mondi
2019-07-06 14:07 ` [PATCH v2 07/19] clk: renesas: r8a77990: " Jacopo Mondi
2019-07-06 14:07 ` [PATCH v2 08/19] clk: renesas: r8a77995: " Jacopo Mondi
2019-07-06 14:07 ` [PATCH v2 09/19] arm64: dts: renesas: r8a7796: Add CMM units Jacopo Mondi
2019-07-06 14:07 ` [PATCH v2 10/19] arm64: dts: renesas: r8a7795: " Jacopo Mondi
2019-07-06 14:07 ` [PATCH v2 11/19] arm64: dts: renesas: r8a77965: " Jacopo Mondi
2019-07-08 3:16 ` Laurent Pinchart
2019-07-06 14:07 ` [PATCH v2 12/19] arm64: dts: renesas: r8a77990: " Jacopo Mondi
2019-07-06 14:07 ` [PATCH v2 13/19] arm64: dts: renesas: r8a77995: " Jacopo Mondi
2019-07-06 14:07 ` [PATCH v2 14/19] drm: rcar-du: Add support for CMM Jacopo Mondi
2019-07-16 13:17 ` Ulrich Hecht
2019-08-20 17:37 ` Laurent Pinchart
2019-08-22 16:44 ` Jacopo Mondi
2019-08-20 17:34 ` Laurent Pinchart
2019-08-22 13:01 ` Jacopo Mondi
2019-08-22 15:10 ` Laurent Pinchart
2019-07-06 14:07 ` [PATCH v2 15/19] drm: rcar-du: Claim CMM support for Gen3 SoCs Jacopo Mondi
2019-07-16 13:18 ` Ulrich Hecht
2019-08-20 17:45 ` Laurent Pinchart
2019-07-06 14:07 ` [PATCH v2 16/19] drm: rcar-du: kms: Collect CMM instances Jacopo Mondi
2019-07-16 13:22 ` Ulrich Hecht
2019-08-20 17:54 ` Laurent Pinchart
2019-08-22 19:09 ` Jacopo Mondi
2019-07-06 14:07 ` [PATCH v2 17/19] drm: rcar-du: crtc: Enable and disable CMMs Jacopo Mondi
2019-07-16 13:31 ` Ulrich Hecht
2019-08-20 17:57 ` Laurent Pinchart
2019-07-06 14:07 ` [PATCH v2 18/19] drm: rcar-du: crtc: Register GAMMA_LUT properties Jacopo Mondi
2019-07-16 13:32 ` Ulrich Hecht
2019-08-20 18:02 ` Laurent Pinchart
2019-07-06 14:07 ` [PATCH v2 19/19] drm: rcar-du: kms: Update CMM in atomic commit tail Jacopo Mondi
2019-07-16 13:33 ` Ulrich Hecht
2019-08-20 18:42 ` Laurent Pinchart
2019-08-22 19:19 ` Jacopo Mondi [this message]
2019-08-22 19:54 ` Laurent Pinchart
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