From patchwork Fri Apr 20 13:31:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ankit Nautiyal X-Patchwork-Id: 10353031 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0417060365 for ; Fri, 20 Apr 2018 15:49:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E880B287BB for ; Fri, 20 Apr 2018 15:49:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DD21F287BE; Fri, 20 Apr 2018 15:49:51 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 51B43287BB for ; Fri, 20 Apr 2018 15:49:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 018B06E72E; Fri, 20 Apr 2018 15:47:48 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9D2D66E06A; Fri, 20 Apr 2018 13:39:17 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 20 Apr 2018 06:39:17 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,301,1520924400"; d="scan'208";a="52322279" Received: from ankit-desktop.iind.intel.com ([10.223.161.2]) by orsmga002.jf.intel.com with ESMTP; 20 Apr 2018 06:39:15 -0700 From: "Nautiyal, Ankit K" To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Subject: [PATCH v11 08/11] drm: Handle aspect ratio info in legacy and atomic modeset paths Date: Fri, 20 Apr 2018 19:01:48 +0530 Message-Id: <1524231111-17440-9-git-send-email-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1524231111-17440-1-git-send-email-ankit.k.nautiyal@intel.com> References: <1524231111-17440-1-git-send-email-ankit.k.nautiyal@intel.com> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Ankit Nautiyal If the user-space does not support aspect-ratio, and requests for a modeset with mode having aspect ratio bits set, then the given user-mode must be rejected. Secondly, while preparing a user-mode from kernel mode, the aspect-ratio info must not be given, if aspect-ratio is not supported by the user. Note: In case, a user-space asks for a video-mode blob, from the getblob ioctl, the aspect-ratio bits in the video-mode blob are passed to the user as it is, without any filtering. However, no such case is present in most of the atomic user-spaces. Currently atomic path of Xserver, Wayland/weston, Hardware-Composer are checked, and none of them are using getblob ioctl to get the video-mode blob. This patch: 1. passes the file_priv structure from the drm_mode_atomic_ioctl till the drm_mode_crtc_set_mode_prop, to get the user capability. 2. rejects the modes with aspect-ratio info, during modeset, if the user does not support aspect ratio. 3. does not load the aspect-ratio info in user-mode structure, if aspect ratio is not supported. Signed-off-by: Ankit Nautiyal V3: Addressed review comments from Ville: Do not corrupt the current crtc state by updating aspect-ratio on the fly. V4: rebase V5: As suggested by Ville, rejected the modeset calls for modes with aspect ratio, if the user does not set aspect-ratio cap. V6: Used the helper functions for determining if aspect-ratio is expected in the user-mode. V7: rebase V8: rebase V9: rebase v10: Modified the commit-message --- drivers/gpu/drm/drm_atomic.c | 34 +++++++++++++++++++++++++--------- drivers/gpu/drm/drm_atomic_helper.c | 6 +++--- drivers/gpu/drm/drm_crtc.c | 8 ++++++++ drivers/gpu/drm/drm_crtc_internal.h | 3 ++- drivers/gpu/drm/drm_mode_object.c | 9 ++++++--- include/drm/drm_atomic.h | 5 +++-- 6 files changed, 47 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 3d9ae05..5acf49d 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -368,6 +368,7 @@ EXPORT_SYMBOL(drm_atomic_set_mode_for_crtc); * drm_atomic_set_mode_prop_for_crtc - set mode for CRTC * @state: the CRTC whose incoming state to update * @blob: pointer to blob property to use for mode + * @file_priv: file priv structure, to get the userspace capabilities * * Set a mode (originating from a blob property) on the desired CRTC state. * This function will take a reference on the blob property for the CRTC state, @@ -378,7 +379,8 @@ EXPORT_SYMBOL(drm_atomic_set_mode_for_crtc); * Zero on success, error code on failure. Cannot return -EDEADLK. */ int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state, - struct drm_property_blob *blob) + struct drm_property_blob *blob, + struct drm_file *file_priv) { if (blob == state->mode_blob) return 0; @@ -389,9 +391,21 @@ int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state, memset(&state->mode, 0, sizeof(state->mode)); if (blob) { - if (blob->length != sizeof(struct drm_mode_modeinfo) || - drm_mode_convert_umode(state->crtc->dev, &state->mode, - blob->data)) + struct drm_mode_modeinfo *u_mode; + + if (blob->length != sizeof(struct drm_mode_modeinfo)) + return -EINVAL; + + u_mode = (struct drm_mode_modeinfo *) blob->data; + if (!drm_mode_aspect_ratio_allowed(file_priv, + u_mode)) { + DRM_DEBUG_ATOMIC("Unexpected aspect-ratio flag bits\n"); + return -EINVAL; + } + + if (drm_mode_convert_umode(state->crtc->dev, &state->mode, + (const struct drm_mode_modeinfo *) + u_mode)) return -EINVAL; state->mode_blob = drm_property_blob_get(blob); @@ -471,6 +485,7 @@ drm_atomic_replace_property_blob_from_id(struct drm_device *dev, * @state: the state object to update with the new property value * @property: the property to set * @val: the new property value + * @file_priv: the file private structure, to get the user capabilities * * This function handles generic/core properties and calls out to driver's * &drm_crtc_funcs.atomic_set_property for driver properties. To ensure @@ -482,7 +497,7 @@ drm_atomic_replace_property_blob_from_id(struct drm_device *dev, */ int drm_atomic_crtc_set_property(struct drm_crtc *crtc, struct drm_crtc_state *state, struct drm_property *property, - uint64_t val) + uint64_t val, struct drm_file *file_priv) { struct drm_device *dev = crtc->dev; struct drm_mode_config *config = &dev->mode_config; @@ -494,7 +509,7 @@ int drm_atomic_crtc_set_property(struct drm_crtc *crtc, else if (property == config->prop_mode_id) { struct drm_property_blob *mode = drm_property_lookup_blob(dev, val); - ret = drm_atomic_set_mode_prop_for_crtc(state, mode); + ret = drm_atomic_set_mode_prop_for_crtc(state, mode, file_priv); drm_property_blob_put(mode); return ret; } else if (property == config->degamma_lut_property) { @@ -1965,7 +1980,8 @@ int drm_atomic_connector_commit_dpms(struct drm_atomic_state *state, int drm_atomic_set_property(struct drm_atomic_state *state, struct drm_mode_object *obj, struct drm_property *prop, - uint64_t prop_value) + uint64_t prop_value, + struct drm_file *file_priv) { struct drm_mode_object *ref; int ret; @@ -1999,7 +2015,7 @@ int drm_atomic_set_property(struct drm_atomic_state *state, } ret = drm_atomic_crtc_set_property(crtc, - crtc_state, prop, prop_value); + crtc_state, prop, prop_value, file_priv); break; } case DRM_MODE_OBJECT_PLANE: { @@ -2388,7 +2404,7 @@ int drm_mode_atomic_ioctl(struct drm_device *dev, } ret = drm_atomic_set_property(state, obj, prop, - prop_value); + prop_value, file_priv); if (ret) { drm_mode_object_put(obj); goto out; diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 9cb2209..d27db14 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -186,7 +186,7 @@ static int handle_conflicting_encoders(struct drm_atomic_state *state, if (!crtc_state->connector_mask) { ret = drm_atomic_set_mode_prop_for_crtc(crtc_state, - NULL); + NULL, NULL); if (ret < 0) goto out; @@ -2773,7 +2773,7 @@ static int update_output_state(struct drm_atomic_state *state, if (!new_crtc_state->connector_mask) { ret = drm_atomic_set_mode_prop_for_crtc(new_crtc_state, - NULL); + NULL, NULL); if (ret < 0) return ret; @@ -2932,7 +2932,7 @@ static int __drm_atomic_helper_disable_all(struct drm_device *dev, crtc_state->active = false; - ret = drm_atomic_set_mode_prop_for_crtc(crtc_state, NULL); + ret = drm_atomic_set_mode_prop_for_crtc(crtc_state, NULL, NULL); if (ret < 0) goto free; diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index a231dd5..98323f4 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -449,6 +449,7 @@ int drm_mode_getcrtc(struct drm_device *dev, crtc_resp->mode_valid = 0; } } + drm_mode_filter_aspect_ratio_flags(file_priv, &crtc_resp->mode); drm_modeset_unlock(&crtc->mutex); return 0; @@ -628,6 +629,13 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, ret = -ENOMEM; goto out; } + if (!drm_mode_aspect_ratio_allowed(file_priv, + &crtc_req->mode)) { + DRM_DEBUG_KMS("Unexpected aspect-ratio flag bits\n"); + ret = -EINVAL; + goto out; + } + ret = drm_mode_convert_umode(dev, mode, &crtc_req->mode); if (ret) { diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h index 3c2b828..7e9f8f8 100644 --- a/drivers/gpu/drm/drm_crtc_internal.h +++ b/drivers/gpu/drm/drm_crtc_internal.h @@ -188,7 +188,8 @@ int drm_atomic_connector_commit_dpms(struct drm_atomic_state *state, int drm_atomic_set_property(struct drm_atomic_state *state, struct drm_mode_object *obj, struct drm_property *prop, - uint64_t prop_value); + uint64_t prop_value, + struct drm_file *file_priv); int drm_atomic_get_property(struct drm_mode_object *obj, struct drm_property *property, uint64_t *val); int drm_mode_atomic_ioctl(struct drm_device *dev, diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c index ce4d2fb..1c3d498 100644 --- a/drivers/gpu/drm/drm_mode_object.c +++ b/drivers/gpu/drm/drm_mode_object.c @@ -452,7 +452,8 @@ static int set_property_legacy(struct drm_mode_object *obj, static int set_property_atomic(struct drm_mode_object *obj, struct drm_property *prop, - uint64_t prop_value) + uint64_t prop_value, + struct drm_file *file_priv) { struct drm_device *dev = prop->dev; struct drm_atomic_state *state; @@ -476,7 +477,8 @@ static int set_property_atomic(struct drm_mode_object *obj, obj_to_connector(obj), prop_value); } else { - ret = drm_atomic_set_property(state, obj, prop, prop_value); + ret = drm_atomic_set_property(state, obj, prop, prop_value, + file_priv); if (ret) goto out; ret = drm_atomic_commit(state); @@ -519,7 +521,8 @@ int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, goto out_unref; if (drm_drv_uses_atomic_modeset(property->dev)) - ret = set_property_atomic(arg_obj, property, arg->value); + ret = set_property_atomic(arg_obj, property, arg->value, + file_priv); else ret = set_property_legacy(arg_obj, property, arg->value); diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h index a57a8aa..b7106f7 100644 --- a/include/drm/drm_atomic.h +++ b/include/drm/drm_atomic.h @@ -367,7 +367,7 @@ drm_atomic_get_crtc_state(struct drm_atomic_state *state, struct drm_crtc *crtc); int drm_atomic_crtc_set_property(struct drm_crtc *crtc, struct drm_crtc_state *state, struct drm_property *property, - uint64_t val); + uint64_t val, struct drm_file *file_priv); struct drm_plane_state * __must_check drm_atomic_get_plane_state(struct drm_atomic_state *state, struct drm_plane *plane); @@ -583,7 +583,8 @@ drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state, const struct drm_display_mode *mode); int __must_check drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state, - struct drm_property_blob *blob); + struct drm_property_blob *blob, + struct drm_file *file_priv); int __must_check drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state, struct drm_crtc *crtc);