From patchwork Wed Oct 25 00:53:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andr=C3=A9_Almeida?= X-Patchwork-Id: 13435374 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4A145C07545 for ; Wed, 25 Oct 2023 00:53:53 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 84B7610E51D; Wed, 25 Oct 2023 00:53:44 +0000 (UTC) Received: from fanzine2.igalia.com (fanzine.igalia.com [178.60.130.6]) by gabe.freedesktop.org (Postfix) with ESMTPS id BF20110E516; Wed, 25 Oct 2023 00:53:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=dQbTPqJByKTPRLvnAel3VnOmQ8OJEdk4CamVdOalghI=; b=hthFN61C8pMIVQZ9RcWSEyznZC DCeWLPIkDfiSIsBrhvaJDxWCUUTEfmCVssQ1H32zqZhFNWHFykB/dHTnX0gjyyu1gf9x9v0J7XyQ+ C7yJkfnSuooedqn98rRf9GBdD0x7sgem+HcqZwo6Njr+7NHky5TXnUM9ye6cAAGFXZf8kDobb9L3B 1inDoSVQ8yliZsA1h/+ihIVj6U8wxx7xY2XvdY8ad5vNS3U6K7W+9uHPMiSw7gr7a/5OZZ2LVaaDS JRfQnttuCmahd0DJbWb/julEFp9GlpOdd8HFFnlvGEPk+6WQlZy+jyc6ae6iSRa0KDfJAMaax/gUf Ip2CnGdA==; Received: from [191.193.179.125] (helo=steammachine.lan) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1qvS9R-006qog-CV; Wed, 25 Oct 2023 02:53:37 +0200 From: =?utf-8?q?Andr=C3=A9_Almeida?= To: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v8 2/6] drm: introduce DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP Date: Tue, 24 Oct 2023 21:53:14 -0300 Message-ID: <20231025005318.293690-3-andrealmeid@igalia.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231025005318.293690-1-andrealmeid@igalia.com> References: <20231025005318.293690-1-andrealmeid@igalia.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pierre-eric.pelloux-prayer@amd.com, =?utf-8?q?Andr=C3=A9_Almeida?= , =?utf-8?b?J01hcmVr?= =?utf-8?b?IE9sxaHDoWsn?= , =?utf-8?q?Michel_D=C3=A4nzer?= , Randy Dunlap , Pekka Paalanen , kernel-dev@igalia.com, alexander.deucher@amd.com, christian.koenig@amd.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Simon Ser This new kernel capability indicates whether async page-flips are supported via the atomic uAPI. DRM clients can use it to check for support before feeding DRM_MODE_PAGE_FLIP_ASYNC to the kernel. Make it clear that DRM_CAP_ASYNC_PAGE_FLIP is for legacy uAPI only. Signed-off-by: Simon Ser Reviewed-by: André Almeida Reviewed-by: Alex Deucher Signed-off-by: André Almeida --- drivers/gpu/drm/drm_ioctl.c | 5 +++++ include/uapi/drm/drm.h | 10 +++++++++- 2 files changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index 77590b0f38fa..a96e7acb9071 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -301,6 +301,11 @@ static int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_ case DRM_CAP_CRTC_IN_VBLANK_EVENT: req->value = 1; break; + case DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP: + req->value = drm_core_check_feature(dev, DRIVER_ATOMIC) && + dev->mode_config.async_page_flip && + !dev->mode_config.atomic_async_page_flip_not_supported; + break; default: return -EINVAL; } diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index 794c1d857677..58baefe32c23 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -713,7 +713,8 @@ struct drm_gem_open { /** * DRM_CAP_ASYNC_PAGE_FLIP * - * If set to 1, the driver supports &DRM_MODE_PAGE_FLIP_ASYNC. + * If set to 1, the driver supports &DRM_MODE_PAGE_FLIP_ASYNC for legacy + * page-flips. */ #define DRM_CAP_ASYNC_PAGE_FLIP 0x7 /** @@ -773,6 +774,13 @@ struct drm_gem_open { * :ref:`drm_sync_objects`. */ #define DRM_CAP_SYNCOBJ_TIMELINE 0x14 +/** + * DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP + * + * If set to 1, the driver supports &DRM_MODE_PAGE_FLIP_ASYNC for atomic + * commits. + */ +#define DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP 0x15 /* DRM_IOCTL_GET_CAP ioctl argument type */ struct drm_get_cap {