From patchwork Tue Jan 5 14:59:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sumera Priyadarsini X-Patchwork-Id: 11999185 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5AF0DC433E0 for ; Tue, 5 Jan 2021 15:00:07 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 122F022B45 for ; Tue, 5 Jan 2021 15:00:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 122F022B45 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5438C89F0A; Tue, 5 Jan 2021 15:00:06 +0000 (UTC) Received: from mail-pl1-x632.google.com (mail-pl1-x632.google.com [IPv6:2607:f8b0:4864:20::632]) by gabe.freedesktop.org (Postfix) with ESMTPS id BEB7589F0A for ; Tue, 5 Jan 2021 15:00:04 +0000 (UTC) Received: by mail-pl1-x632.google.com with SMTP id b8so16503989plx.0 for ; Tue, 05 Jan 2021 07:00:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition; bh=n7TlG8NN8jqja9Y8WW/SFKAXx/PSZJP7n6gKEltVpFU=; b=eXHexYoCXgtAr+oro3RAi4gfVhK320MQZQrx7m30ZY0OxfQbvA00LFGYpOSQIOp6Zp 3JGi19GS54y/X/0a3KrwCKvSFWREaeD6E4R8M1aNXeHoB8hFtsLvQN6eb4VyiLfBvSu1 5UhFSCux5CuChplhG08+F1MTLE017f5ZigwMf4Rf1Oor/jJ3v7Ls4h3ET+Ks2ZAjLum0 NQh9vAiiyR0JyWVTN3fw6hTl/jb/oo2G3Q4SMrxjG4Z4nl31Rz2nWlfDovAYXQmNmwEf xPoENgIUqO6eyVhZsjW3/8TI8VbH3eLl5MLsYSl4wH//StMZqSS+aguARmnipFZ2k+ye CSfw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition; bh=n7TlG8NN8jqja9Y8WW/SFKAXx/PSZJP7n6gKEltVpFU=; b=cI+smZaXRnWv0Q0xHpKvAbwiwTAZFyPE1ElM5n01sQ2MQmOs5ubOYYSNwi4Od69jD5 Uf+mPWf2v7E72pen1Khg0o/GBlMHJB7oQlk7unLzAQ5Mnk8KLyNTlqhLE3L1r1mOvlH/ T8vBgi0DePUwFnZGOfSwp95o1lFt+Fv9pokwDHB67y9k9cPen2igslm9HAsI5kh+ezL9 4bUbzs1j4OBwZI0FgO2hVXhc7PF2hGVOkQxpXI8WRc3Vzwrz3YB7OeBNGqzI6ttgQG/4 GfB79+cLftp1x03jAmmKMAzCxhatX6NkpvaVHz7BnEN1dta6ME/uP7qg/Dh8R3/gkxIQ xTrQ== X-Gm-Message-State: AOAM531x787vFUI9B2j1s1X34t2y2PaRBjAc2oQjcx99SmDCGJF4BUG4 woiBwsETj649ucdPpoWjxFw= X-Google-Smtp-Source: ABdhPJzt2J2xbYGa8V2kGsXoiPVNPLpxYJEqiOjOODtDuZUQdq7tB1tHlFrmXSkPHwXwOMX7QndZgw== X-Received: by 2002:a17:90a:e60d:: with SMTP id j13mr4560199pjy.52.1609858804291; Tue, 05 Jan 2021 07:00:04 -0800 (PST) Received: from adolin ([49.207.206.190]) by smtp.gmail.com with ESMTPSA id nm6sm2956012pjb.25.2021.01.05.07.00.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 Jan 2021 07:00:03 -0800 (PST) Date: Tue, 5 Jan 2021 20:29:58 +0530 From: Sumera Priyadarsini To: melissa.srw@gmail.com Subject: [PATCH V3] drm/vkms: Decouple config data for configfs Message-ID: <20210105145958.r5q553i6ji7fru6l@adolin> MIME-Version: 1.0 Content-Disposition: inline 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: hamohammed.sa@gmail.com, rodrigosiqueiramelo@gmail.com, airlied@linux.ie, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Currently, data for the device instance is held by vkms_device. Add a separate type, vkms_config to contain configuration details for the device and various modes to be later used by configfs. This config data stays constant once the device is created. Accordingly, add vkms_create and vkms_destroy to initialize/destroy device through configfs. Currently, they are being called from vkms_init and vkms_exit, but will be evoked from configfs later on. When configfs is added, device configuration will be tracked by configfs and only vkms device lifetime will be handled by vkms_init and vkms_exit functions. Modify usage of enable_cursor feature to reflect the changes in relevant files. Add enable_writeback_connector feature to vkms_config type. Co-developed-by: Daniel Vetter Signed-off-by: Daniel Vetter Signed-off-by: Sumera Priyadarsini --- Changes in v2: - add Co-developed-by tag Changes in v3: - correct usage of Co-developed by tag(Melissa) - add enable_writeback_feature(Melissa) - modify commit message(Melissa) --- drivers/gpu/drm/vkms/vkms_drv.c | 45 ++++++++++++++++++++++++------ drivers/gpu/drm/vkms/vkms_drv.h | 12 ++++++-- drivers/gpu/drm/vkms/vkms_output.c | 13 +++++---- 3 files changed, 54 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c index aef29393b811..fab964900dce 100644 --- a/drivers/gpu/drm/vkms/vkms_drv.c +++ b/drivers/gpu/drm/vkms/vkms_drv.c @@ -34,12 +34,16 @@ #define DRIVER_MAJOR 1 #define DRIVER_MINOR 0 -static struct vkms_device *vkms_device; +static struct vkms_config *default_config; -bool enable_cursor = true; +static bool enable_cursor = true; module_param_named(enable_cursor, enable_cursor, bool, 0444); MODULE_PARM_DESC(enable_cursor, "Enable/Disable cursor support"); +static bool enable_writeback_connector = true; +module_param_named(enable_writeback_connector, enable_writeback_connector, bool, 0444); +MODULE_PARM_DESC(enable_writeback_connector, "Enable/Disable writeback connector support"); + DEFINE_DRM_GEM_FOPS(vkms_driver_fops); static void vkms_release(struct drm_device *dev) @@ -122,10 +126,11 @@ static int vkms_modeset_init(struct vkms_device *vkmsdev) return vkms_output_init(vkmsdev, 0); } -static int __init vkms_init(void) +static int vkms_create(struct vkms_config *config) { int ret; struct platform_device *pdev; + struct vkms_device *vkms_device; pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0); if (IS_ERR(pdev)) @@ -143,6 +148,8 @@ static int __init vkms_init(void) goto out_devres; } vkms_device->platform = pdev; + vkms_device->config = config; + config->dev = vkms_device; ret = dma_coerce_mask_and_coherent(vkms_device->drm.dev, DMA_BIT_MASK(64)); @@ -179,21 +186,43 @@ static int __init vkms_init(void) return ret; } -static void __exit vkms_exit(void) +static int __init vkms_init(void) +{ + struct vkms_config *config = kmalloc(sizeof(*config), GFP_KERNEL); + + default_config = config; + + config->cursor = enable_cursor; + config->writeback = enable_writeback_connector; + + return vkms_create(config); +} + +static void vkms_destroy(struct vkms_config *config) { struct platform_device *pdev; - if (!vkms_device) { + if (!config->dev) { DRM_INFO("vkms_device is NULL.\n"); return; } - pdev = vkms_device->platform; + pdev = config->dev->platform; - drm_dev_unregister(&vkms_device->drm); - drm_atomic_helper_shutdown(&vkms_device->drm); + drm_dev_unregister(&config->dev->drm); + drm_atomic_helper_shutdown(&config->dev->drm); devres_release_group(&pdev->dev, NULL); platform_device_unregister(pdev); + + config->dev = NULL; +} + +static void __exit vkms_exit(void) +{ + if (default_config->dev) + vkms_destroy(default_config); + + kfree(default_config); } module_init(vkms_init); diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h index 5ed91ff08cb3..caa1fafb6ca7 100644 --- a/drivers/gpu/drm/vkms/vkms_drv.h +++ b/drivers/gpu/drm/vkms/vkms_drv.h @@ -19,8 +19,6 @@ #define XRES_MAX 8192 #define YRES_MAX 8192 -extern bool enable_cursor; - struct vkms_composer { struct drm_framebuffer fb; struct drm_rect src, dst; @@ -82,10 +80,18 @@ struct vkms_output { spinlock_t composer_lock; }; +struct vkms_device; +struct vkms_config { + bool writeback; + bool cursor; + /* only set when instantiated */ + struct vkms_device *dev; +}; struct vkms_device { struct drm_device drm; struct platform_device *platform; struct vkms_output output; + const struct vkms_config *config; }; #define drm_crtc_to_vkms_output(target) \ @@ -123,4 +129,4 @@ void vkms_set_composer(struct vkms_output *out, bool enabled); /* Writeback */ int vkms_enable_writeback_connector(struct vkms_device *vkmsdev); -#endif /* _VKMS_DRV_H_ */ +#endif /* _VKMS_DRV_H_ */ \ No newline at end of file diff --git a/drivers/gpu/drm/vkms/vkms_output.c b/drivers/gpu/drm/vkms/vkms_output.c index 4a1848b0318f..f5f6f15c362c 100644 --- a/drivers/gpu/drm/vkms/vkms_output.c +++ b/drivers/gpu/drm/vkms/vkms_output.c @@ -41,12 +41,13 @@ int vkms_output_init(struct vkms_device *vkmsdev, int index) struct drm_crtc *crtc = &output->crtc; struct drm_plane *primary, *cursor = NULL; int ret; + int writeback; primary = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_PRIMARY, index); if (IS_ERR(primary)) return PTR_ERR(primary); - if (enable_cursor) { + if (vkmsdev->config->cursor) { cursor = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_CURSOR, index); if (IS_ERR(cursor)) { ret = PTR_ERR(cursor); @@ -80,9 +81,11 @@ int vkms_output_init(struct vkms_device *vkmsdev, int index) goto err_attach; } - ret = vkms_enable_writeback_connector(vkmsdev); - if (ret) - DRM_ERROR("Failed to init writeback connector\n"); + if (vkmsdev->config->writeback) { + writeback = vkms_enable_writeback_connector(vkmsdev); + if (writeback) + DRM_ERROR("Failed to init writeback connector\n"); + } drm_mode_config_reset(dev); @@ -98,7 +101,7 @@ int vkms_output_init(struct vkms_device *vkmsdev, int index) drm_crtc_cleanup(crtc); err_crtc: - if (enable_cursor) + if (vkmsdev->config->cursor) drm_plane_cleanup(cursor); err_cursor: