From patchwork Fri Jul 28 17:02:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jessica Zhang X-Patchwork-Id: 707563 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 1C097C001DF for ; Fri, 28 Jul 2023 17:03:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235581AbjG1RDj (ORCPT ); Fri, 28 Jul 2023 13:03:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36800 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235717AbjG1RDc (ORCPT ); Fri, 28 Jul 2023 13:03:32 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E469F3A97; Fri, 28 Jul 2023 10:03:21 -0700 (PDT) Received: from pps.filterd (m0279866.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36SFOoDa003921; Fri, 28 Jul 2023 17:02:56 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : date : subject : mime-version : content-type : content-transfer-encoding : message-id : references : in-reply-to : to : cc; s=qcppdkim1; bh=j+sRPrpAwhAVKFulVtIQLH6XOSmADLR7dqzZ1obJJGc=; b=IG5PbLWFfGu2Sr+qNTDR3wkjNOxLJC7vD2iSPp2FVlqWFqPv60m7wKU8pxB5kZr+y56F tvEGN6MUFCWwrwnkkylM40zybGmHdqPPcX5Ln3/81m9cFwux7G7bWjcCEfYRxk4CLHCb Cro0P7mNHv0YY/CPc0mEW8/WDQ+vXG4D2WoxwBERK5HttiDIZjQN/K7n6M0v3UQZ5Nky PLV/ofJ95HM1Cb5n1KOAG5/qSs+/peIw5WEmGgRMdIiJGUmYInl2X0NVcWlydM77/sQS qRwnS8tLlxfKAsGMUM+ltgZclSshS2L90zF6JF+nKOZESnIgbyjtpLJd3OXUw83kdq32 Dg== Received: from nasanppmta04.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3s3ufutu28-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 28 Jul 2023 17:02:55 +0000 Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 36SH2tIW014111 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 28 Jul 2023 17:02:55 GMT Received: from jesszhan-linux.qualcomm.com (10.80.80.8) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Fri, 28 Jul 2023 10:02:54 -0700 From: Jessica Zhang Date: Fri, 28 Jul 2023 10:02:16 -0700 Subject: [PATCH RFC v5 07/10] drm/atomic: Loosen FB atomic checks MIME-Version: 1.0 Message-ID: <20230728-solid-fill-v5-7-053dbefa909c@quicinc.com> References: <20230728-solid-fill-v5-0-053dbefa909c@quicinc.com> In-Reply-To: <20230728-solid-fill-v5-0-053dbefa909c@quicinc.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Rob Clark , Dmitry Baryshkov , "Sean Paul" , Marijn Suijten CC: , , , , , , , , , , , Jessica Zhang X-Mailer: b4 0.13-dev-034f2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1690563772; l=8202; i=quic_jesszhan@quicinc.com; s=20230329; h=from:subject:message-id; bh=ScTdHnV3Q+jdzclndROY4MHg7j9+xb48VIgT1wa//Rs=; b=cuxvm4J7qj68rorXj6M7YAMJ9VQrtuT1/JlBKrESKd7/ZXheI6xytq8hINPYbnvXJlf7fQNJp fiOS/8RyohFDvERUtSQXjRF4wItxqvnfEnRtc0KCnrR/uJBXE/VijdR X-Developer-Key: i=quic_jesszhan@quicinc.com; a=ed25519; pk=gAUCgHZ6wTJOzQa3U0GfeCDH7iZLlqIEPo4rrjfDpWE= X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nasanex01b.na.qualcomm.com (10.46.141.250) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: Zr3bCRh-u5hPz85TyndtRmbi08CnMb1P X-Proofpoint-ORIG-GUID: Zr3bCRh-u5hPz85TyndtRmbi08CnMb1P X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-27_10,2023-07-26_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 mlxlogscore=776 mlxscore=0 clxscore=1015 priorityscore=1501 adultscore=0 phishscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307280154 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Loosen the requirements for atomic and legacy commit so that, in cases where pixel_source != FB, the commit can still go through. This includes adding framebuffer NULL checks in other areas to account for FB being NULL when non-FB pixel sources are enabled. To disable a plane, the pixel_source must be NONE or the FB must be NULL if pixel_source == FB. Signed-off-by: Jessica Zhang --- drivers/gpu/drm/drm_atomic.c | 20 +++++++++++--------- drivers/gpu/drm/drm_atomic_helper.c | 34 ++++++++++++++++++++-------------- drivers/gpu/drm/drm_plane.c | 16 ++++++++++++---- include/drm/drm_atomic_helper.h | 4 ++-- include/drm/drm_plane.h | 29 +++++++++++++++++++++++++++++ 5 files changed, 74 insertions(+), 29 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 017ce0e6570f..b0c532f3db82 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -668,14 +668,14 @@ static int drm_atomic_plane_check(const struct drm_plane_state *old_plane_state, const struct drm_framebuffer *fb = new_plane_state->fb; int ret; - /* either *both* CRTC and FB must be set, or neither */ - if (crtc && !fb) { - drm_dbg_atomic(plane->dev, "[PLANE:%d:%s] CRTC set but no FB\n", + /* either *both* CRTC and pixel source must be set, or neither */ + if (crtc && !drm_plane_has_visible_data(new_plane_state)) { + drm_dbg_atomic(plane->dev, "[PLANE:%d:%s] CRTC set but no visible data\n", plane->base.id, plane->name); return -EINVAL; - } else if (fb && !crtc) { - drm_dbg_atomic(plane->dev, "[PLANE:%d:%s] FB set but no CRTC\n", - plane->base.id, plane->name); + } else if (drm_plane_has_visible_data(new_plane_state) && !crtc) { + drm_dbg_atomic(plane->dev, "[PLANE:%d:%s] Source %d has visible data but no CRTC\n", + plane->base.id, plane->name, new_plane_state->pixel_source); return -EINVAL; } @@ -706,9 +706,11 @@ static int drm_atomic_plane_check(const struct drm_plane_state *old_plane_state, } - ret = drm_atomic_check_fb(new_plane_state); - if (ret) - return ret; + if (new_plane_state->pixel_source == DRM_PLANE_PIXEL_SOURCE_FB && fb) { + ret = drm_atomic_check_fb(new_plane_state); + if (ret) + return ret; + } if (plane_switching_crtc(old_plane_state, new_plane_state)) { drm_dbg_atomic(plane->dev, diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 41b8066f61ff..d05ec9ef2b3e 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -864,7 +864,7 @@ int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state, *src = drm_plane_state_src(plane_state); *dst = drm_plane_state_dest(plane_state); - if (!fb) { + if (!drm_plane_has_visible_data(plane_state)) { plane_state->visible = false; return 0; } @@ -881,25 +881,31 @@ int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state, return -EINVAL; } - drm_rect_rotate(src, fb->width << 16, fb->height << 16, rotation); + if (plane_state->pixel_source == DRM_PLANE_PIXEL_SOURCE_FB && fb) { + drm_rect_rotate(src, fb->width << 16, fb->height << 16, rotation); - /* Check scaling */ - hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale); - vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale); - if (hscale < 0 || vscale < 0) { - drm_dbg_kms(plane_state->plane->dev, - "Invalid scaling of plane\n"); - drm_rect_debug_print("src: ", &plane_state->src, true); - drm_rect_debug_print("dst: ", &plane_state->dst, false); - return -ERANGE; + /* Check scaling */ + hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale); + vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale); + + if (hscale < 0 || vscale < 0) { + drm_dbg_kms(plane_state->plane->dev, + "Invalid scaling of plane\n"); + drm_rect_debug_print("src: ", &plane_state->src, true); + drm_rect_debug_print("dst: ", &plane_state->dst, false); + return -ERANGE; + } } if (crtc_state->enable) drm_mode_get_hv_timing(&crtc_state->mode, &clip.x2, &clip.y2); - plane_state->visible = drm_rect_clip_scaled(src, dst, &clip); - - drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16, rotation); + if (plane_state->pixel_source == DRM_PLANE_PIXEL_SOURCE_FB && fb) { + plane_state->visible = drm_rect_clip_scaled(src, dst, &clip); + drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16, rotation); + } else if (drm_plane_solid_fill_enabled(plane_state)) { + plane_state->visible = true; + } if (!plane_state->visible) /* diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index 009d3ebd9b39..8f759f546aae 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -839,6 +839,14 @@ bool drm_any_plane_has_format(struct drm_device *dev, } EXPORT_SYMBOL(drm_any_plane_has_format); +static bool drm_plane_needs_disable(struct drm_plane_state *state, struct drm_framebuffer *fb) +{ + if (state->pixel_source == DRM_PLANE_PIXEL_SOURCE_NONE) + return true; + + return state->pixel_source == DRM_PLANE_PIXEL_SOURCE_FB && fb == NULL; +} + /* * __setplane_internal - setplane handler for internal callers * @@ -861,8 +869,8 @@ static int __setplane_internal(struct drm_plane *plane, WARN_ON(drm_drv_uses_atomic_modeset(plane->dev)); - /* No fb means shut it down */ - if (!fb) { + /* No visible data means shut it down */ + if (drm_plane_needs_disable(plane->state, fb)) { plane->old_fb = plane->fb; ret = plane->funcs->disable_plane(plane, ctx); if (!ret) { @@ -913,8 +921,8 @@ static int __setplane_atomic(struct drm_plane *plane, WARN_ON(!drm_drv_uses_atomic_modeset(plane->dev)); - /* No fb means shut it down */ - if (!fb) + /* No visible data means shut it down */ + if (drm_plane_needs_disable(plane->state, fb)) return plane->funcs->disable_plane(plane, ctx); /* diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h index 536a0b0091c3..6d97f38ac1f6 100644 --- a/include/drm/drm_atomic_helper.h +++ b/include/drm/drm_atomic_helper.h @@ -256,8 +256,8 @@ drm_atomic_plane_disabling(struct drm_plane_state *old_plane_state, * Anything else should be considered a bug in the atomic core, so we * gently warn about it. */ - WARN_ON((new_plane_state->crtc == NULL && new_plane_state->fb != NULL) || - (new_plane_state->crtc != NULL && new_plane_state->fb == NULL)); + WARN_ON((new_plane_state->crtc == NULL && drm_plane_has_visible_data(new_plane_state)) || + (new_plane_state->crtc != NULL && !drm_plane_has_visible_data(new_plane_state))); return old_plane_state->crtc && !new_plane_state->crtc; } diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h index 303f01f0588c..9ff2a837ed17 100644 --- a/include/drm/drm_plane.h +++ b/include/drm/drm_plane.h @@ -991,6 +991,35 @@ static inline struct drm_plane *drm_plane_find(struct drm_device *dev, #define drm_for_each_plane(plane, dev) \ list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) +/** + * drm_plane_solid_fill_enabled - Check if solid fill is enabled on plane + * @state: plane state + * + * Returns: + * Whether the plane has been assigned a solid_fill_blob + */ +static inline bool drm_plane_solid_fill_enabled(struct drm_plane_state *state) +{ + if (!state) + return false; + return state->pixel_source == DRM_PLANE_PIXEL_SOURCE_SOLID_FILL && state->solid_fill_blob; +} + +static inline bool drm_plane_has_visible_data(const struct drm_plane_state *state) +{ + switch (state->pixel_source) { + case DRM_PLANE_PIXEL_SOURCE_NONE: + return false; + case DRM_PLANE_PIXEL_SOURCE_SOLID_FILL: + return state->solid_fill_blob != NULL; + case DRM_PLANE_PIXEL_SOURCE_FB: + default: + WARN_ON(state->pixel_source != DRM_PLANE_PIXEL_SOURCE_FB); + } + + return state->fb != NULL; +} + bool drm_any_plane_has_format(struct drm_device *dev, u32 format, u64 modifier);