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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D480AC6FA8E for ; Tue, 28 Feb 2023 16:33:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229524AbjB1QdQ (ORCPT ); Tue, 28 Feb 2023 11:33:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54658 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229481AbjB1QdP (ORCPT ); Tue, 28 Feb 2023 11:33:15 -0500 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EAE9418A83 for ; Tue, 28 Feb 2023 08:33:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1677601990; x=1709137990; h=from:to:cc:subject:in-reply-to:references:date: message-id:mime-version; bh=KDl8nycTuTzYjqMG2woSdVN+pD+2iPSNMvBPwJxQDS8=; b=h5Khyz2s6dIwBgxq8i6dcqWhJK1qcO9AVl1Aros/eQiy7GUd/ZRMF+bR 51p7Y+Ty60Y2J61AQzsw15TqI+lS2sN8+fLamM74Fp34Ae9soiC83vTZ0 vRLZzG9hhbrw2Wbu9z+AmAA8OAVKX3ghiFILAfAPqVn+R8DgLsouERLi5 7Us0IvrEsFh/u5lQG/BpAho7Bw894iO0Ft5uQLBjVVptgU2vo2fn8BmCC NGpiMamofIgACyOhZh4n+OWUU3oUDXPUqGGaMiRZ0+l//s8bqUDtpyz48 BRos8dCRqNVNFo8j4075kDbWp3x0MWIIVxaJ7jvJ6ezmbqg7r4mr38UYJ w==; X-IronPort-AV: E=McAfee;i="6500,9779,10635"; a="331663822" X-IronPort-AV: E=Sophos;i="5.98,222,1673942400"; d="scan'208";a="331663822" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Feb 2023 08:33:10 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10635"; a="783906019" X-IronPort-AV: E=Sophos;i="5.98,222,1673942400"; d="scan'208";a="783906019" Received: from barumuga-mobl1.ger.corp.intel.com (HELO localhost) ([10.252.47.26]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Feb 2023 08:33:06 -0800 From: Jani Nikula To: Dmitry Baryshkov , David Airlie , Daniel Vetter , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , Rob Clark , Abhinav Kumar , Sean Paul , Marijn Suijten Cc: Ville =?utf-8?B?U3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org Subject: Re: [PATCH 06/10] drm/display/dsc: split DSC 1.2 and DSC 1.1 (pre-SCR) parameters In-Reply-To: <20230228113342.2051425-7-dmitry.baryshkov@linaro.org> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: <20230228113342.2051425-1-dmitry.baryshkov@linaro.org> <20230228113342.2051425-7-dmitry.baryshkov@linaro.org> Date: Tue, 28 Feb 2023 18:33:04 +0200 Message-ID: <87lekhyclb.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On Tue, 28 Feb 2023, Dmitry Baryshkov wrote: > The array of rc_parameters contains a mixture of parameters from DSC 1.1 > and DSC 1.2 standards. Split these tow configuration arrays in > preparation to adding more configuration data. > > Signed-off-by: Dmitry Baryshkov > --- > drivers/gpu/drm/display/drm_dsc_helper.c | 127 ++++++++++++++++++---- > drivers/gpu/drm/i915/display/intel_vdsc.c | 10 +- > include/drm/display/drm_dsc_helper.h | 7 +- > 3 files changed, 119 insertions(+), 25 deletions(-) > > diff --git a/drivers/gpu/drm/display/drm_dsc_helper.c b/drivers/gpu/drm/display/drm_dsc_helper.c > index a6d11f474656..51794b40526a 100644 > --- a/drivers/gpu/drm/display/drm_dsc_helper.c > +++ b/drivers/gpu/drm/display/drm_dsc_helper.c > @@ -326,11 +326,81 @@ struct rc_parameters_data { > > #define DSC_BPP(bpp) ((bpp) << 4) > > +static const struct rc_parameters_data rc_parameters_pre_scr[] = { > +{ DSC_BPP(8), 8, > + /* 8BPP/8BPC */ I still dislike this indentation... > + { 512, 12, 6144, 3, 12, 11, 11, { > + { 0, 4, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, > + { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, > + { 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 }, { 5, 12, -12 }, > + { 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 } > + } > + } > +}, > +{ DSC_BPP(8), 10, > + /* 8BPP/10BPC */ > + { 512, 12, 6144, 7, 16, 15, 15, { > + /* > + * DSC model/pre-SCR-cfg has 8 for range_max_qp[0], however > + * VESA DSC 1.1 Table E-5 sets it to 4. > + */ > + { 0, 4, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 5, 10, -2 }, > + { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, > + { 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 }, > + { 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 } > + } > + } > +}, > +{ DSC_BPP(8), 12, > + /* 8BPP/12BPC */ > + { 512, 12, 6144, 11, 20, 19, 19, { > + { 0, 12, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 9, 14, -2 }, > + { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, > + { 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 }, > + { 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 }, > + { 21, 23, -12 } > + } > + } > +}, > +{ DSC_BPP(12), 8, > + /* 12BPP/8BPC */ > + { 341, 15, 2048, 3, 12, 11, 11, { > + { 0, 2, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, > + { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, > + { 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 }, { 5, 12, -12 }, > + { 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 } > + } > + } > +}, > +{ DSC_BPP(12), 10, > + /* 12BPP/10BPC */ > + { 341, 15, 2048, 7, 16, 15, 15, { > + { 0, 2, 2 }, { 2, 5, 0 }, { 3, 7, 0 }, { 4, 8, -2 }, > + { 6, 9, -4 }, { 7, 10, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, > + { 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 }, > + { 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 } > + } > + } > +}, > +{ DSC_BPP(12), 12, > + /* 12BPP/12BPC */ > + { 341, 15, 2048, 11, 20, 19, 19, { > + { 0, 6, 2 }, { 4, 9, 0 }, { 7, 11, 0 }, { 8, 12, -2 }, > + { 10, 13, -4 }, { 11, 14, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, > + { 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 }, > + { 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 }, > + { 21, 23, -12 } > + } > + } > +}, > +{ /* sentinel */ } > +}; > + > /* > * Selected Rate Control Related Parameter Recommended Values > * from DSC_v1.11 spec & C Model release: DSC_model_20161212 > */ > -static const struct rc_parameters_data rc_parameters[] = { > +static const struct rc_parameters_data rc_parameters_1_2_444[] = { > { DSC_BPP(6), 8, > /* 6BPP/8BPC */ > { 768, 15, 6144, 3, 13, 11, 11, { > @@ -390,22 +460,18 @@ static const struct rc_parameters_data rc_parameters[] = { > { 512, 12, 6144, 3, 12, 11, 11, { > { 0, 4, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, > { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, > - { 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 }, { 5, 12, -12 }, > - { 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 } > + { 3, 9, -8 }, { 3, 10, -10 }, { 5, 10, -10 }, { 5, 11, -12 }, > + { 5, 11, -12 }, { 9, 12, -12 }, { 12, 13, -12 } > } > } > }, > { DSC_BPP(8), 10, > /* 8BPP/10BPC */ > { 512, 12, 6144, 7, 16, 15, 15, { > - /* > - * DSC model/pre-SCR-cfg has 8 for range_max_qp[0], however > - * VESA DSC 1.1 Table E-5 sets it to 4. > - */ > - { 0, 4, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 5, 10, -2 }, > + { 0, 8, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 5, 10, -2 }, > { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, > - { 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 }, > - { 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 } > + { 7, 13, -8 }, { 7, 14, -10 }, { 9, 14, -10 }, { 9, 15, -12 }, > + { 9, 15, -12 }, { 13, 16, -12 }, { 16, 17, -12 } > } > } > }, > @@ -414,9 +480,9 @@ static const struct rc_parameters_data rc_parameters[] = { > { 512, 12, 6144, 11, 20, 19, 19, { > { 0, 12, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 9, 14, -2 }, > { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, > - { 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 }, > - { 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 }, > - { 21, 23, -12 } > + { 11, 17, -8 }, { 11, 18, -10 }, { 13, 18, -10 }, > + { 13, 19, -12 }, { 13, 19, -12 }, { 17, 20, -12 }, > + { 20, 21, -12 } > } > } > }, > @@ -500,8 +566,8 @@ static const struct rc_parameters_data rc_parameters[] = { > { 341, 15, 2048, 3, 12, 11, 11, { > { 0, 2, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, > { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, > - { 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 }, > - { 5, 12, -12 }, { 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 } > + { 3, 8, -8 }, { 3, 9, -10 }, { 5, 9, -10 }, { 5, 9, -12 }, > + { 5, 9, -12 }, { 7, 10, -12 }, { 10, 11, -12 } > } > } > }, > @@ -510,8 +576,8 @@ static const struct rc_parameters_data rc_parameters[] = { > { 341, 15, 2048, 7, 16, 15, 15, { > { 0, 2, 2 }, { 2, 5, 0 }, { 3, 7, 0 }, { 4, 8, -2 }, > { 6, 9, -4 }, { 7, 10, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, > - { 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 }, > - { 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 } > + { 7, 12, -8 }, { 7, 13, -10 }, { 9, 13, -10 }, { 9, 13, -12 }, > + { 9, 13, -12 }, { 11, 14, -12 }, { 14, 15, -12 } > } > } > }, > @@ -520,9 +586,9 @@ static const struct rc_parameters_data rc_parameters[] = { > { 341, 15, 2048, 11, 20, 19, 19, { > { 0, 6, 2 }, { 4, 9, 0 }, { 7, 11, 0 }, { 8, 12, -2 }, > { 10, 13, -4 }, { 11, 14, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, > - { 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 }, > - { 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 }, > - { 21, 23, -12 } > + { 11, 16, -8 }, { 11, 17, -10 }, { 13, 17, -10 }, > + { 13, 17, -12 }, { 13, 17, -12 }, { 15, 18, -12 }, > + { 18, 19, -12 } > } > } > }, > @@ -604,7 +670,8 @@ static const struct rc_parameters_data rc_parameters[] = { > { /* sentinel */ } > }; > > -static const struct rc_parameters *get_rc_params(u16 dsc_bpp, > +static const struct rc_parameters *get_rc_params(const struct rc_parameters_data *rc_parameters, > + u16 dsc_bpp, > u8 bits_per_component) > { > int i; > @@ -622,13 +689,27 @@ static const struct rc_parameters *get_rc_params(u16 dsc_bpp, > * accordance with the DSC 1.1 or 1.2 specification and DSC C Model > * > * @vdsc_cfg: DSC Configuration data partially filled by driver > + * @kind: operating mode and standard to follow > */ > -int drm_dsc_setup_rc_params(struct drm_dsc_config *vdsc_cfg) > +int drm_dsc_setup_rc_params(struct drm_dsc_config *vdsc_cfg, enum drm_dsc_params_kind kind) > { > + const struct rc_parameters_data *data; > const struct rc_parameters *rc_params; > int i; > > - rc_params = get_rc_params(vdsc_cfg->bits_per_pixel, > + switch (kind) { > + case DRM_DSC_1_2_444: > + data = rc_parameters_1_2_444; > + break; > + case DRM_DSC_1_1_PRE_SCR: > + data = rc_parameters_pre_scr; > + break; > + default: > + return -EINVAL; > + } > + > + rc_params = get_rc_params(data, > + vdsc_cfg->bits_per_pixel, > vdsc_cfg->bits_per_component); > if (!rc_params) > return -EINVAL; > diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c > index 1ee8d13c9d64..4d220d24fa73 100644 > --- a/drivers/gpu/drm/i915/display/intel_vdsc.c > +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c > @@ -156,7 +156,15 @@ int intel_dsc_compute_params(struct intel_crtc_state *pipe_config) > if (DISPLAY_VER(dev_priv) >= 13) { > calculate_rc_params(vdsc_cfg); > } else { > - ret = drm_dsc_setup_rc_params(vdsc_cfg); > + if ((compressed_bpp == 8 || > + compressed_bpp == 12) && > + (vdsc_cfg->bits_per_pixel == 8 || > + vdsc_cfg->bits_per_pixel == 10 || > + vdsc_cfg->bits_per_pixel == 12)) > + ret = drm_dsc_setup_rc_params(vdsc_cfg, DRM_DSC_1_1_PRE_SCR); > + else > + ret = drm_dsc_setup_rc_params(vdsc_cfg, DRM_DSC_1_2_444); > + > if (ret) > return ret; > > diff --git a/include/drm/display/drm_dsc_helper.h b/include/drm/display/drm_dsc_helper.h > index 1681791f65a5..c634bb2935d3 100644 > --- a/include/drm/display/drm_dsc_helper.h > +++ b/include/drm/display/drm_dsc_helper.h > @@ -10,12 +10,17 @@ > > #include > > +enum drm_dsc_params_kind { > + DRM_DSC_1_2_444, > + DRM_DSC_1_1_PRE_SCR, /* legacy params from DSC 1.1 */ > +}; > + > void drm_dsc_dp_pps_header_init(struct dp_sdp_header *pps_header); > int drm_dsc_dp_rc_buffer_size(u8 rc_buffer_block_size, u8 rc_buffer_size); > void drm_dsc_pps_payload_pack(struct drm_dsc_picture_parameter_set *pps_sdp, > const struct drm_dsc_config *dsc_cfg); > void drm_dsc_set_rc_buf_thresh(struct drm_dsc_config *vdsc_cfg); > -int drm_dsc_setup_rc_params(struct drm_dsc_config *vdsc_cfg); > +int drm_dsc_setup_rc_params(struct drm_dsc_config *vdsc_cfg, enum drm_dsc_params_kind kind); > int drm_dsc_compute_rc_parameters(struct drm_dsc_config *vdsc_cfg); > > #endif /* _DRM_DSC_HELPER_H_ */ -- Jani Nikula, Intel Open Source Graphics Center