From patchwork Fri Jan 11 05:37:49 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 10757417 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7FE3317D2 for ; Fri, 11 Jan 2019 05:38:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 72B92297A7 for ; Fri, 11 Jan 2019 05:38:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6722B29926; Fri, 11 Jan 2019 05:38:07 +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=ham 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 0BC0D297A7 for ; Fri, 11 Jan 2019 05:38:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 356EF6F556; Fri, 11 Jan 2019 05:38:00 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id CE1876F551 for ; Fri, 11 Jan 2019 05:37:58 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6A6FA144089; Fri, 11 Jan 2019 05:37:58 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-203.ams2.redhat.com [10.36.116.203]) by smtp.corp.redhat.com (Postfix) with ESMTP id D69A37F1B3; Fri, 11 Jan 2019 05:37:57 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 68FC393E8; Fri, 11 Jan 2019 06:37:54 +0100 (CET) From: Gerd Hoffmann To: dri-devel@lists.freedesktop.org, David Airlie Subject: [PATCH v4 13/16] drm/bochs: add basic prime support Date: Fri, 11 Jan 2019 06:37:49 +0100 Message-Id: <20190111053752.4004-14-kraxel@redhat.com> In-Reply-To: <20190111053752.4004-1-kraxel@redhat.com> References: <20190111053752.4004-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Fri, 11 Jan 2019 05:37:58 +0000 (UTC) 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: , Cc: andr2000@gmail.com, open list , "open list:DRM DRIVER FOR BOCHS VIRTUAL GPU" , David Airlie , Gerd Hoffmann MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Just enough to make the generic framebuffer emulation happy. Signed-off-by: Gerd Hoffmann Reviewed-by: Oleksandr Andrushchenko Acked-by: Daniel Vetter --- drivers/gpu/drm/bochs/bochs.h | 7 ++++++ drivers/gpu/drm/bochs/bochs_drv.c | 11 ++++++++- drivers/gpu/drm/bochs/bochs_mm.c | 49 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 66 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h index d0d474e06f..ede22beb85 100644 --- a/drivers/gpu/drm/bochs/bochs.h +++ b/drivers/gpu/drm/bochs/bochs.h @@ -145,6 +145,13 @@ int bochs_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev, int bochs_bo_pin(struct bochs_bo *bo, u32 pl_flag); int bochs_bo_unpin(struct bochs_bo *bo); +int bochs_gem_prime_pin(struct drm_gem_object *obj); +void bochs_gem_prime_unpin(struct drm_gem_object *obj); +void *bochs_gem_prime_vmap(struct drm_gem_object *obj); +void bochs_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); +int bochs_gem_prime_mmap(struct drm_gem_object *obj, + struct vm_area_struct *vma); + /* bochs_kms.c */ int bochs_kms_init(struct bochs_device *bochs); void bochs_kms_fini(struct bochs_device *bochs); diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c index a8cb22cffe..a3f4e21078 100644 --- a/drivers/gpu/drm/bochs/bochs_drv.c +++ b/drivers/gpu/drm/bochs/bochs_drv.c @@ -81,7 +81,8 @@ static const struct file_operations bochs_fops = { }; static struct drm_driver bochs_driver = { - .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, + .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC | + DRIVER_PRIME, .fops = &bochs_fops, .name = "bochs-drm", .desc = "bochs dispi vga interface (qemu stdvga)", @@ -91,6 +92,14 @@ static struct drm_driver bochs_driver = { .gem_free_object_unlocked = bochs_gem_free_object, .dumb_create = bochs_dumb_create, .dumb_map_offset = bochs_dumb_mmap_offset, + + .gem_prime_export = drm_gem_prime_export, + .gem_prime_import = drm_gem_prime_import, + .gem_prime_pin = bochs_gem_prime_pin, + .gem_prime_unpin = bochs_gem_prime_unpin, + .gem_prime_vmap = bochs_gem_prime_vmap, + .gem_prime_vunmap = bochs_gem_prime_vunmap, + .gem_prime_mmap = bochs_gem_prime_mmap, }; /* ---------------------------------------------------------------------- */ diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c index fcbf35456d..641a33f134 100644 --- a/drivers/gpu/drm/bochs/bochs_mm.c +++ b/drivers/gpu/drm/bochs/bochs_mm.c @@ -395,3 +395,52 @@ int bochs_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev, drm_gem_object_put_unlocked(obj); return 0; } + +/* ---------------------------------------------------------------------- */ + +int bochs_gem_prime_pin(struct drm_gem_object *obj) +{ + struct bochs_bo *bo = gem_to_bochs_bo(obj); + + return bochs_bo_pin(bo, TTM_PL_FLAG_VRAM); +} + +void bochs_gem_prime_unpin(struct drm_gem_object *obj) +{ + struct bochs_bo *bo = gem_to_bochs_bo(obj); + + bochs_bo_unpin(bo); +} + +void *bochs_gem_prime_vmap(struct drm_gem_object *obj) +{ + struct bochs_bo *bo = gem_to_bochs_bo(obj); + bool is_iomem; + int ret; + + ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM); + if (ret) + return NULL; + ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap); + if (ret) { + bochs_bo_unpin(bo); + return NULL; + } + return ttm_kmap_obj_virtual(&bo->kmap, &is_iomem); +} + +void bochs_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) +{ + struct bochs_bo *bo = gem_to_bochs_bo(obj); + + ttm_bo_kunmap(&bo->kmap); + bochs_bo_unpin(bo); +} + +int bochs_gem_prime_mmap(struct drm_gem_object *obj, + struct vm_area_struct *vma) +{ + struct bochs_bo *bo = gem_to_bochs_bo(obj); + + return ttm_fbdev_mmap(vma, &bo->bo); +}