From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Jacopo Mondi <jacopo+renesas@jmondi.org>
Cc: kieran.bingham+renesas@ideasonboard.com, geert@linux-m68k.org,
horms@verge.net.au, uli@fpond.eu, 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,
Ulrich Hecht <uli+renesas@fpond.eu>
Subject: Re: [PATCH v3 13/14] drm: rcar-du: kms: Update CMM in atomic commit tail
Date: Tue, 27 Aug 2019 03:00:17 +0300 [thread overview]
Message-ID: <20190827000017.GB5274@pendragon.ideasonboard.com> (raw)
In-Reply-To: <20190825135154.11488-14-jacopo+renesas@jmondi.org>
Hi Jacopo,
Thank you for the patch.
On Sun, Aug 25, 2019 at 03:51:53PM +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.
>
> Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> 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 61ca1d3c379a..047fdb982a11 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
> @@ -22,6 +22,7 @@
> #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"
> @@ -368,6 +369,37 @@ 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]);
It has just occurred to me that the hardware only support LUTs of
exactly 256 entries. Should we remove cmm_config.lut.size (simplifying
the code in the CMM driver), and add a check to the CRTC .atomic_check()
handler to reject invalid LUTs ? Sorry for not having caught this
earlier.
> + 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)
> {
> @@ -410,6 +442,9 @@ 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);
> +
> /* Apply the atomic update. */
> drm_atomic_helper_commit_modeset_disables(dev, old_state);
> drm_atomic_helper_commit_planes(dev, old_state,
--
Regards,
Laurent Pinchart
next prev parent reply other threads:[~2019-08-27 0:00 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-25 13:51 [PATCH v3 00/14] drm: rcar-du: Add Color Management Module (CMM) Jacopo Mondi
2019-08-25 13:51 ` [PATCH v3 01/14] dt-bindings: display: renesas,cmm: Add R-Car CMM documentation Jacopo Mondi
2019-08-26 7:34 ` Geert Uytterhoeven
2019-08-26 7:59 ` Jacopo Mondi
2019-08-26 8:38 ` Geert Uytterhoeven
2019-08-26 10:15 ` Laurent Pinchart
2019-08-30 18:01 ` Jacopo Mondi
2019-09-05 11:50 ` Laurent Pinchart
2019-09-05 12:05 ` Geert Uytterhoeven
2019-09-05 12:20 ` Laurent Pinchart
2019-09-05 13:28 ` Jacopo Mondi
2019-08-25 13:51 ` [PATCH v3 02/14] dt-bindings: display, renesas,du: Document cmms property Jacopo Mondi
2019-08-27 20:29 ` Rob Herring
2019-08-28 7:32 ` Geert Uytterhoeven
2019-08-28 8:28 ` Laurent Pinchart
2019-08-25 13:51 ` [PATCH v3 03/14] arm64: dts: renesas: r8a7796: Add CMM units Jacopo Mondi
2019-08-26 7:28 ` Geert Uytterhoeven
2019-08-26 8:00 ` Jacopo Mondi
2019-08-26 22:43 ` Laurent Pinchart
2019-08-27 9:55 ` Jacopo Mondi
2019-08-27 10:12 ` Geert Uytterhoeven
2019-08-25 13:51 ` [PATCH v3 04/14] arm64: dts: renesas: r8a7795: " Jacopo Mondi
2019-08-26 22:45 ` Laurent Pinchart
2019-08-25 13:51 ` [PATCH v3 05/14] arm64: dts: renesas: r8a77965: " Jacopo Mondi
2019-08-26 22:45 ` Laurent Pinchart
2019-08-25 13:51 ` [PATCH v3 06/14] arm64: dts: renesas: r8a77990: " Jacopo Mondi
2019-08-26 22:47 ` Laurent Pinchart
2019-08-25 13:51 ` [PATCH v3 07/14] arm64: dts: renesas: r8a77995: " Jacopo Mondi
2019-08-26 22:47 ` Laurent Pinchart
2019-08-25 13:51 ` [PATCH v3 08/14] drm: rcar-du: Add support for CMM Jacopo Mondi
2019-08-26 7:31 ` Geert Uytterhoeven
2019-08-26 8:02 ` Jacopo Mondi
2019-08-27 0:24 ` Laurent Pinchart
2019-08-27 14:56 ` Jacopo Mondi
2019-08-27 15:48 ` Jacopo Mondi
2019-08-27 16:34 ` Laurent Pinchart
2019-09-05 9:57 ` Jacopo Mondi
2019-09-05 11:17 ` Laurent Pinchart
2019-09-05 13:14 ` Jacopo Mondi
2019-09-05 13:39 ` Laurent Pinchart
2019-08-25 13:51 ` [PATCH v3 09/14] drm: rcar-du: Claim CMM support for Gen3 SoCs Jacopo Mondi
2019-08-25 13:51 ` [PATCH v3 10/14] drm: rcar-du: kms: Collect CMM instances Jacopo Mondi
2019-08-26 23:51 ` Laurent Pinchart
2019-08-25 13:51 ` [PATCH v3 11/14] drm: rcar-du: crtc: Enable and disable CMMs Jacopo Mondi
2019-08-25 13:51 ` [PATCH v3 12/14] drm: rcar-du: crtc: Register GAMMA_LUT properties Jacopo Mondi
2019-08-25 13:51 ` [PATCH v3 13/14] drm: rcar-du: kms: Update CMM in atomic commit tail Jacopo Mondi
2019-08-27 0:00 ` Laurent Pinchart [this message]
2019-08-27 0:19 ` Laurent Pinchart
2019-08-27 14:44 ` Jacopo Mondi
2019-08-27 16:38 ` Laurent Pinchart
2019-08-25 13:51 ` [PATCH v3 14/14] drm: rcar-du: Force CMM enablement when resuming Jacopo Mondi
2019-08-27 0:05 ` Laurent Pinchart
2019-09-05 10:58 ` Jacopo Mondi
2019-09-05 11:25 ` Laurent Pinchart
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