From patchwork Tue Jul 6 08:47:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 470852 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT 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 C2BC1C07E96 for ; Tue, 6 Jul 2021 08:47:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A917B61995 for ; Tue, 6 Jul 2021 08:47:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230333AbhGFIuf (ORCPT ); Tue, 6 Jul 2021 04:50:35 -0400 Received: from smtp-out2.suse.de ([195.135.220.29]:39646 "EHLO smtp-out2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230295AbhGFIue (ORCPT ); Tue, 6 Jul 2021 04:50:34 -0400 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 745E31FF34; Tue, 6 Jul 2021 08:47:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1625561275; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=jhBCujPABZPNUH3fBBFSxVuzrudipOZC/VeSlBUNZGs=; b=tCSAPs0SnB2OiPsJETed+5QRiaW6k4ag2fZFC4OSut+GaHlGFJao2B9MShfG/GhXNLE0Bj NVteb7TVd93d2tM5pJqiHf5jcul1I00n0oegdvklHVOhynNOrSzrX6VmJSfOU+wykKkija 1F9LC2PVW4QuuaBZIs4aozzztnqg+8s= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1625561275; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=jhBCujPABZPNUH3fBBFSxVuzrudipOZC/VeSlBUNZGs=; b=QPeY/90fe2QVkyBl6oYrUDDWzt/dJkc21IhOjzeNp+0lC5eabr4oF6iVGeXSS6KEE/7yJE Ios9YN9NPnK2ruDA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 24B7A13A70; Tue, 6 Jul 2021 08:47:55 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id lhv1B7sY5GCYfQAAMHmgww (envelope-from ); Tue, 06 Jul 2021 08:47:55 +0000 From: Thomas Zimmermann To: robdclark@gmail.com, sean@poorly.run, airlied@linux.ie, daniel@ffwll.ch, jonathan@marek.ca, jordan@cosmicpenguin.net Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, Thomas Zimmermann Subject: [PATCH v2] drm/msm: Implement mmap as GEM object function Date: Tue, 6 Jul 2021 10:47:53 +0200 Message-Id: <20210706084753.8194-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Moving the driver-specific mmap code into a GEM object function allows for using DRM helpers for various mmap callbacks. The respective msm functions are being removed. The file_operations structure fops is now being created by the helper macro DEFINE_DRM_GEM_FOPS(). v2: * rebase onto latest upstream * remove declaration of msm_gem_mmap_obj() from msm_fbdev.c Signed-off-by: Thomas Zimmermann --- drivers/gpu/drm/msm/msm_drv.c | 14 ++--------- drivers/gpu/drm/msm/msm_drv.h | 1 - drivers/gpu/drm/msm/msm_fbdev.c | 12 ++-------- drivers/gpu/drm/msm/msm_gem.c | 37 ++++++++++------------------- drivers/gpu/drm/msm/msm_gem.h | 3 --- drivers/gpu/drm/msm/msm_gem_prime.c | 11 --------- 6 files changed, 16 insertions(+), 62 deletions(-) -- 2.32.0 diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 9b8fa2ad0d84..a4d238e8d377 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -1004,17 +1004,7 @@ static const struct drm_ioctl_desc msm_ioctls[] = { DRM_IOCTL_DEF_DRV(MSM_SUBMITQUEUE_QUERY, msm_ioctl_submitqueue_query, DRM_RENDER_ALLOW), }; -static const struct file_operations fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .poll = drm_poll, - .read = drm_read, - .llseek = no_llseek, - .mmap = msm_gem_mmap, -}; +DEFINE_DRM_GEM_FOPS(fops); static const struct drm_driver msm_driver = { .driver_features = DRIVER_GEM | @@ -1034,7 +1024,7 @@ static const struct drm_driver msm_driver = { .prime_handle_to_fd = drm_gem_prime_handle_to_fd, .prime_fd_to_handle = drm_gem_prime_fd_to_handle, .gem_prime_import_sg_table = msm_gem_prime_import_sg_table, - .gem_prime_mmap = msm_gem_prime_mmap, + .gem_prime_mmap = drm_gem_prime_mmap, #ifdef CONFIG_DEBUG_FS .debugfs_init = msm_debugfs_init, #endif diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 1a48a709ffb3..1a42903db347 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -309,7 +309,6 @@ void msm_gem_shrinker_cleanup(struct drm_device *dev); struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj); int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); -int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma); struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev, struct dma_buf_attachment *attach, struct sg_table *sg); int msm_gem_prime_pin(struct drm_gem_object *obj); diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c index 67fae60f2fa5..0daaeb54ff6f 100644 --- a/drivers/gpu/drm/msm/msm_fbdev.c +++ b/drivers/gpu/drm/msm/msm_fbdev.c @@ -8,13 +8,12 @@ #include #include #include +#include #include "msm_drv.h" #include "msm_gem.h" #include "msm_kms.h" -extern int msm_gem_mmap_obj(struct drm_gem_object *obj, - struct vm_area_struct *vma); static int msm_fbdev_mmap(struct fb_info *info, struct vm_area_struct *vma); /* @@ -48,15 +47,8 @@ static int msm_fbdev_mmap(struct fb_info *info, struct vm_area_struct *vma) struct drm_fb_helper *helper = (struct drm_fb_helper *)info->par; struct msm_fbdev *fbdev = to_msm_fbdev(helper); struct drm_gem_object *bo = msm_framebuffer_bo(fbdev->fb, 0); - int ret = 0; - ret = drm_gem_mmap_obj(bo, bo->size, vma); - if (ret) { - pr_err("%s:drm_gem_mmap_obj fail\n", __func__); - return ret; - } - - return msm_gem_mmap_obj(bo, vma); + return drm_gem_prime_mmap(bo, vma); } static int msm_fbdev_create(struct drm_fb_helper *helper, diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 141178754231..519a9601b219 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -218,31 +218,6 @@ static pgprot_t msm_gem_pgprot(struct msm_gem_object *msm_obj, pgprot_t prot) return prot; } -int msm_gem_mmap_obj(struct drm_gem_object *obj, - struct vm_area_struct *vma) -{ - struct msm_gem_object *msm_obj = to_msm_bo(obj); - - vma->vm_flags &= ~VM_PFNMAP; - vma->vm_flags |= VM_MIXEDMAP; - vma->vm_page_prot = msm_gem_pgprot(msm_obj, vm_get_page_prot(vma->vm_flags)); - - return 0; -} - -int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma) -{ - int ret; - - ret = drm_gem_mmap(filp, vma); - if (ret) { - DBG("mmap failed: %d", ret); - return ret; - } - - return msm_gem_mmap_obj(vma->vm_private_data, vma); -} - static vm_fault_t msm_gem_fault(struct vm_fault *vmf) { struct vm_area_struct *vma = vmf->vma; @@ -1114,6 +1089,17 @@ void msm_gem_free_object(struct drm_gem_object *obj) kfree(msm_obj); } +static int msm_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) +{ + struct msm_gem_object *msm_obj = to_msm_bo(obj); + + vma->vm_flags &= ~VM_PFNMAP; + vma->vm_flags |= VM_MIXEDMAP; + vma->vm_page_prot = msm_gem_pgprot(msm_obj, vm_get_page_prot(vma->vm_flags)); + + return 0; +} + /* convenience method to construct a GEM buffer object, and userspace handle */ int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, uint32_t size, uint32_t flags, uint32_t *handle, @@ -1151,6 +1137,7 @@ static const struct drm_gem_object_funcs msm_gem_object_funcs = { .get_sg_table = msm_gem_prime_get_sg_table, .vmap = msm_gem_prime_vmap, .vunmap = msm_gem_prime_vunmap, + .mmap = msm_gem_object_mmap, .vm_ops = &vm_ops, }; diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h index 405f8411e395..aab548720bee 100644 --- a/drivers/gpu/drm/msm/msm_gem.h +++ b/drivers/gpu/drm/msm/msm_gem.h @@ -112,9 +112,6 @@ struct msm_gem_object { }; #define to_msm_bo(x) container_of(x, struct msm_gem_object, base) -int msm_gem_mmap_obj(struct drm_gem_object *obj, - struct vm_area_struct *vma); -int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma); uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj); int msm_gem_get_iova(struct drm_gem_object *obj, struct msm_gem_address_space *aspace, uint64_t *iova); diff --git a/drivers/gpu/drm/msm/msm_gem_prime.c b/drivers/gpu/drm/msm/msm_gem_prime.c index 9880348a4dc7..fc94e061d6a7 100644 --- a/drivers/gpu/drm/msm/msm_gem_prime.c +++ b/drivers/gpu/drm/msm/msm_gem_prime.c @@ -39,17 +39,6 @@ void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map) msm_gem_put_vaddr(obj); } -int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) -{ - int ret; - - ret = drm_gem_mmap_obj(obj, obj->size, vma); - if (ret < 0) - return ret; - - return msm_gem_mmap_obj(vma->vm_private_data, vma); -} - struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev, struct dma_buf_attachment *attach, struct sg_table *sg) {