From patchwork Wed Apr 24 11:48:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 10914607 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 78F17161F for ; Wed, 24 Apr 2019 11:49:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 683EA28720 for ; Wed, 24 Apr 2019 11:49:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 507BF287E5; Wed, 24 Apr 2019 11:49:32 +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 BA5B628720 for ; Wed, 24 Apr 2019 11:49:31 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 939288923D; Wed, 24 Apr 2019 11:49:28 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx1.suse.de (mx2.suse.de [195.135.220.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 62CBF89211 for ; Wed, 24 Apr 2019 11:48:57 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id E527CAEE3; Wed, 24 Apr 2019 11:48:55 +0000 (UTC) From: Thomas Zimmermann To: daniel@ffwll.ch, airlied@linux.ie, kraxel@redhat.com, christian.koenig@amd.com, ray.huang@amd.com, Jerry.Zhang@amd.com, hdegoede@redhat.com, z.liuxinliang@hisilicon.com, zourongrong@gmail.com, kong.kongxinwei@hisilicon.com, puck.chen@hisilicon.com Subject: [PATCH v2 15/17] drm/vboxvideo: Convert vboxvideo driver to VRAM MM Date: Wed, 24 Apr 2019 13:48:40 +0200 Message-Id: <20190424114842.4723-16-tzimmermann@suse.de> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190424114842.4723-1-tzimmermann@suse.de> References: <20190424114842.4723-1-tzimmermann@suse.de> MIME-Version: 1.0 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: Thomas Zimmermann , dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP The data structure |struct drm_vram_mm| and its helpers replace vboxvideo's TTM-based memory manager. It's the same implementation; except for the type names. v2: * implement vbox_mmap() with drm_vram_mm_mmap() Signed-off-by: Thomas Zimmermann Reviewed-by: Hans de Goede --- drivers/gpu/drm/vboxvideo/Kconfig | 1 + drivers/gpu/drm/vboxvideo/vbox_drv.h | 10 +- drivers/gpu/drm/vboxvideo/vbox_main.c | 4 +- drivers/gpu/drm/vboxvideo/vbox_ttm.c | 126 ++------------------------ 4 files changed, 14 insertions(+), 127 deletions(-) diff --git a/drivers/gpu/drm/vboxvideo/Kconfig b/drivers/gpu/drm/vboxvideo/Kconfig index 96c794a39c56..485b665a9fa4 100644 --- a/drivers/gpu/drm/vboxvideo/Kconfig +++ b/drivers/gpu/drm/vboxvideo/Kconfig @@ -4,6 +4,7 @@ config DRM_VBOXVIDEO select DRM_KMS_HELPER select DRM_TTM select DRM_GEM_VRAM_HELPER + select DRM_VRAM_MM_HELPER select GENERIC_ALLOCATOR help This is a KMS driver for the virtual Graphics Card used in diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.h b/drivers/gpu/drm/vboxvideo/vbox_drv.h index f91564440a8f..e5a160e6bcc7 100644 --- a/drivers/gpu/drm/vboxvideo/vbox_drv.h +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.h @@ -20,11 +20,7 @@ #include #include -#include -#include -#include -#include -#include +#include #include "vboxvideo_guest.h" #include "vboxvideo_vbe.h" @@ -78,9 +74,7 @@ struct vbox_private { int fb_mtrr; - struct { - struct ttm_bo_device bdev; - } ttm; + struct drm_vram_mm vmm; struct mutex hw_mutex; /* protects modeset and accel/vbva accesses */ struct work_struct hotplug_work; diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c index 525e9fd63f4d..8726b33abe7f 100644 --- a/drivers/gpu/drm/vboxvideo/vbox_main.c +++ b/drivers/gpu/drm/vboxvideo/vbox_main.c @@ -283,7 +283,7 @@ int vbox_gem_create(struct vbox_private *vbox, if (size == 0) return -EINVAL; - gbo = drm_gem_vram_create(&vbox->ddev, &vbox->ttm.bdev, size, 0, false); + gbo = drm_gem_vram_create(&vbox->ddev, &vbox->vmm.bdev, size, 0, false); if (IS_ERR(gbo)) { ret = PTR_ERR(gbo); if (ret != -ERESTARTSYS) @@ -301,7 +301,7 @@ int vbox_dumb_create(struct drm_file *file, { struct vbox_private *vbox = dev->dev_private; - return drm_gem_vram_fill_create_dumb(file, dev, &vbox->ttm.bdev, 0, + return drm_gem_vram_fill_create_dumb(file, dev, &vbox->vmm.bdev, 0, false, args); } diff --git a/drivers/gpu/drm/vboxvideo/vbox_ttm.c b/drivers/gpu/drm/vboxvideo/vbox_ttm.c index 0989d656eed6..b71a3c404db1 100644 --- a/drivers/gpu/drm/vboxvideo/vbox_ttm.c +++ b/drivers/gpu/drm/vboxvideo/vbox_ttm.c @@ -8,131 +8,27 @@ */ #include #include -#include #include "vbox_drv.h" -static inline struct vbox_private *vbox_bdev(struct ttm_bo_device *bd) -{ - return container_of(bd, struct vbox_private, ttm.bdev); -} - -static int -vbox_bo_init_mem_type(struct ttm_bo_device *bdev, u32 type, - struct ttm_mem_type_manager *man) -{ - switch (type) { - case TTM_PL_SYSTEM: - man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; - man->available_caching = TTM_PL_MASK_CACHING; - man->default_caching = TTM_PL_FLAG_CACHED; - break; - case TTM_PL_VRAM: - man->func = &ttm_bo_manager_func; - man->flags = TTM_MEMTYPE_FLAG_FIXED | TTM_MEMTYPE_FLAG_MAPPABLE; - man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC; - man->default_caching = TTM_PL_FLAG_WC; - break; - default: - DRM_ERROR("Unsupported memory type %u\n", (unsigned int)type); - return -EINVAL; - } - - return 0; -} - -static int vbox_ttm_io_mem_reserve(struct ttm_bo_device *bdev, - struct ttm_mem_reg *mem) -{ - struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type]; - struct vbox_private *vbox = vbox_bdev(bdev); - - mem->bus.addr = NULL; - mem->bus.offset = 0; - mem->bus.size = mem->num_pages << PAGE_SHIFT; - mem->bus.base = 0; - mem->bus.is_iomem = false; - if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE)) - return -EINVAL; - switch (mem->mem_type) { - case TTM_PL_SYSTEM: - /* system memory */ - return 0; - case TTM_PL_VRAM: - mem->bus.offset = mem->start << PAGE_SHIFT; - mem->bus.base = pci_resource_start(vbox->ddev.pdev, 0); - mem->bus.is_iomem = true; - break; - default: - return -EINVAL; - } - return 0; -} - -static void vbox_ttm_io_mem_free(struct ttm_bo_device *bdev, - struct ttm_mem_reg *mem) -{ -} - -static void vbox_ttm_backend_destroy(struct ttm_tt *tt) -{ - ttm_tt_fini(tt); - kfree(tt); -} - -static struct ttm_backend_func vbox_tt_backend_func = { - .destroy = &vbox_ttm_backend_destroy, -}; - -static struct ttm_tt *vbox_ttm_tt_create(struct ttm_buffer_object *bo, - u32 page_flags) -{ - struct ttm_tt *tt; - - tt = kzalloc(sizeof(*tt), GFP_KERNEL); - if (!tt) - return NULL; - - tt->func = &vbox_tt_backend_func; - if (ttm_tt_init(tt, bo, page_flags)) { - kfree(tt); - return NULL; - } - - return tt; -} - -static struct ttm_bo_driver vbox_bo_driver = { - .ttm_tt_create = vbox_ttm_tt_create, - .init_mem_type = vbox_bo_init_mem_type, - .eviction_valuable = ttm_bo_eviction_valuable, +static const struct drm_vram_mm_funcs vbox_vram_mm_funcs = { .evict_flags = drm_gem_vram_bo_driver_evict_flags, - .verify_access = drm_gem_vram_bo_driver_verify_access, - .io_mem_reserve = &vbox_ttm_io_mem_reserve, - .io_mem_free = &vbox_ttm_io_mem_free, + .verify_access = drm_gem_vram_bo_driver_verify_access }; int vbox_mm_init(struct vbox_private *vbox) { int ret; struct drm_device *dev = &vbox->ddev; - struct ttm_bo_device *bdev = &vbox->ttm.bdev; - ret = ttm_bo_device_init(&vbox->ttm.bdev, - &vbox_bo_driver, - dev->anon_inode->i_mapping, - true); + ret = drm_vram_mm_init(&vbox->vmm, dev, + pci_resource_start(dev->pdev, 0), + vbox->available_vram_size, + &vbox_vram_mm_funcs); if (ret) { - DRM_ERROR("Error initialising bo driver; %d\n", ret); + DRM_ERROR("Error initializing VRAM MM; %d\n", ret); return ret; } - ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM, - vbox->available_vram_size >> PAGE_SHIFT); - if (ret) { - DRM_ERROR("Failed ttm VRAM init: %d\n", ret); - goto err_device_release; - } - #ifdef DRM_MTRR_WC vbox->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0), pci_resource_len(dev->pdev, 0), @@ -142,10 +38,6 @@ int vbox_mm_init(struct vbox_private *vbox) pci_resource_len(dev->pdev, 0)); #endif return 0; - -err_device_release: - ttm_bo_device_release(&vbox->ttm.bdev); - return ret; } void vbox_mm_fini(struct vbox_private *vbox) @@ -157,7 +49,7 @@ void vbox_mm_fini(struct vbox_private *vbox) #else arch_phys_wc_del(vbox->fb_mtrr); #endif - ttm_bo_device_release(&vbox->ttm.bdev); + drm_vram_mm_cleanup(&vbox->vmm); } int vbox_mmap(struct file *filp, struct vm_area_struct *vma) @@ -165,5 +57,5 @@ int vbox_mmap(struct file *filp, struct vm_area_struct *vma) struct drm_file *file_priv = filp->private_data; struct vbox_private *vbox = file_priv->minor->dev->dev_private; - return ttm_bo_mmap(filp, vma, &vbox->ttm.bdev); + return drm_vram_mm_mmap(filp, vma, &vbox->vmm); }