From mboxrd@z Thu Jan 1 00:00:00 1970 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 E84B1C38142 for ; Tue, 31 Jan 2023 03:35:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EE2AF10E14D; Tue, 31 Jan 2023 03:35:49 +0000 (UTC) Received: from letterbox.kde.org (letterbox.kde.org [46.43.1.242]) by gabe.freedesktop.org (Postfix) with ESMTPS id 09DC110E0C8 for ; Tue, 31 Jan 2023 03:35:48 +0000 (UTC) Received: from vertex.localdomain (pool-173-49-113-140.phlapa.fios.verizon.net [173.49.113.140]) (Authenticated sender: zack) by letterbox.kde.org (Postfix) with ESMTPSA id 2B13B3211E4; Tue, 31 Jan 2023 03:35:46 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kde.org; s=users; t=1675136146; bh=01BskZ8wZjzcYCgICAZ+OpdN2DLUPBDDEJOtaArBWKs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UulS7xbx7L5ZAkKb/ly5V2p2uOqEQpe5g11DDHRc9hPmmxrAQczan2d7VHwN3idly Z0uUy2+f+Y3RiZR0IJB0TbDPUdGccLcF3pn5CmAdfTyhndMo4I2C/8QQBWNbaDbF5H KhK5g/EzI9WMQSHKpy+owhPsoSTl6JRnBI13wa70etPYkP6RFQ0XyhPVJ0A3bFNzdM 3kEVWATjhmA0q4ibxVaIxwWrO4A0v4M6C+w4gKW4kyHxRHWxuDNVAQ6lss4+680f1o 7Uc4JvCw0nJx/UsS+EoeWOkyWM+TT3j1D+AJc3CrIsIGI9FALLcpRBlPBc7j5iGfup oleIcr0ROVAmg== From: Zack Rusin To: dri-devel@lists.freedesktop.org Subject: [PATCH v2 1/8] drm/vmwgfx: Use the common gem mmap instead of the custom code Date: Mon, 30 Jan 2023 22:35:35 -0500 Message-Id: <20230131033542.953249-2-zack@kde.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230131033542.953249-1-zack@kde.org> References: <20230131033542.953249-1-zack@kde.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: , Reply-To: Zack Rusin Cc: krastevm@vmware.com, Thomas Zimmermann , banackm@vmware.com, mombasawalam@vmware.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Zack Rusin Before vmwgfx supported gem it needed to implement the entire mmap logic explicitly. With GEM support that's not needed and the generic code can be used by simply setting the vm_ops to vmwgfx specific ones on the gem object itself. Removes a lot of code from vmwgfx without any functional difference. Signed-off-by: Zack Rusin Reviewed-by: Thomas Zimmermann Reviewed-by: Martin Krastev --- drivers/gpu/drm/vmwgfx/Makefile | 2 +- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 2 +- drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 6 -- drivers/gpu/drm/vmwgfx/vmwgfx_gem.c | 8 ++ drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c | 110 ----------------------- 5 files changed, 10 insertions(+), 118 deletions(-) delete mode 100644 drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c diff --git a/drivers/gpu/drm/vmwgfx/Makefile b/drivers/gpu/drm/vmwgfx/Makefile index 2a644f035597..e94479d9cd5b 100644 --- a/drivers/gpu/drm/vmwgfx/Makefile +++ b/drivers/gpu/drm/vmwgfx/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.o \ vmwgfx_ioctl.o vmwgfx_resource.o vmwgfx_ttm_buffer.o \ - vmwgfx_cmd.o vmwgfx_irq.o vmwgfx_ldu.o vmwgfx_ttm_glue.o \ + vmwgfx_cmd.o vmwgfx_irq.o vmwgfx_ldu.o \ vmwgfx_overlay.o vmwgfx_gmrid_manager.o vmwgfx_fence.o \ vmwgfx_bo.o vmwgfx_scrn.o vmwgfx_context.o \ vmwgfx_surface.o vmwgfx_prime.o vmwgfx_mob.o vmwgfx_shader.o \ diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index bd02cb0e6837..e0c2e3748015 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -1566,7 +1566,7 @@ static const struct file_operations vmwgfx_driver_fops = { .open = drm_open, .release = drm_release, .unlocked_ioctl = vmw_unlocked_ioctl, - .mmap = vmw_mmap, + .mmap = drm_gem_mmap, .poll = drm_poll, .read = drm_read, #if defined(CONFIG_COMPAT) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 5acbf5849b27..4dfa5044a9e7 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -1053,12 +1053,6 @@ vmw_is_cursor_bypass3_enabled(const struct vmw_private *dev_priv) return (vmw_fifo_caps(dev_priv) & SVGA_FIFO_CAP_CURSOR_BYPASS_3) != 0; } -/** - * TTM glue - vmwgfx_ttm_glue.c - */ - -extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma); - /** * TTM buffer object driver - vmwgfx_ttm_buffer.c */ diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c index ce609e7d758f..ba4ddd9f7a7e 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c @@ -103,6 +103,13 @@ static struct sg_table *vmw_gem_object_get_sg_table(struct drm_gem_object *obj) return drm_prime_pages_to_sg(obj->dev, vmw_tt->dma_ttm.pages, vmw_tt->dma_ttm.num_pages); } +static const struct vm_operations_struct vmw_vm_ops = { + .pfn_mkwrite = vmw_bo_vm_mkwrite, + .page_mkwrite = vmw_bo_vm_mkwrite, + .fault = vmw_bo_vm_fault, + .open = ttm_bo_vm_open, + .close = ttm_bo_vm_close, +}; static const struct drm_gem_object_funcs vmw_gem_object_funcs = { .free = vmw_gem_object_free, @@ -115,6 +122,7 @@ static const struct drm_gem_object_funcs vmw_gem_object_funcs = { .vmap = drm_gem_ttm_vmap, .vunmap = drm_gem_ttm_vunmap, .mmap = drm_gem_ttm_mmap, + .vm_ops = &vmw_vm_ops, }; /** diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c deleted file mode 100644 index 265f7c48d856..000000000000 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c +++ /dev/null @@ -1,110 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 OR MIT -/************************************************************************** - * - * Copyright 2009-2011 VMware, Inc., Palo Alto, CA., USA - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR - * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE - * USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - -#include "vmwgfx_drv.h" - -static int vmw_bo_vm_lookup(struct ttm_device *bdev, - struct drm_file *filp, - unsigned long offset, - unsigned long pages, - struct ttm_buffer_object **p_bo) -{ - struct vmw_private *dev_priv = container_of(bdev, struct vmw_private, bdev); - struct drm_device *drm = &dev_priv->drm; - struct drm_vma_offset_node *node; - int ret; - - *p_bo = NULL; - - drm_vma_offset_lock_lookup(bdev->vma_manager); - - node = drm_vma_offset_lookup_locked(bdev->vma_manager, offset, pages); - if (likely(node)) { - *p_bo = container_of(node, struct ttm_buffer_object, - base.vma_node); - *p_bo = ttm_bo_get_unless_zero(*p_bo); - } - - drm_vma_offset_unlock_lookup(bdev->vma_manager); - - if (!*p_bo) { - drm_err(drm, "Could not find buffer object to map\n"); - return -EINVAL; - } - - if (!drm_vma_node_is_allowed(node, filp)) { - ret = -EACCES; - goto out_no_access; - } - - return 0; -out_no_access: - ttm_bo_put(*p_bo); - return ret; -} - -int vmw_mmap(struct file *filp, struct vm_area_struct *vma) -{ - static const struct vm_operations_struct vmw_vm_ops = { - .pfn_mkwrite = vmw_bo_vm_mkwrite, - .page_mkwrite = vmw_bo_vm_mkwrite, - .fault = vmw_bo_vm_fault, - .open = ttm_bo_vm_open, - .close = ttm_bo_vm_close, - }; - struct drm_file *file_priv = filp->private_data; - struct vmw_private *dev_priv = vmw_priv(file_priv->minor->dev); - struct ttm_device *bdev = &dev_priv->bdev; - struct ttm_buffer_object *bo; - int ret; - - if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET_START)) - return -EINVAL; - - ret = vmw_bo_vm_lookup(bdev, file_priv, vma->vm_pgoff, vma_pages(vma), &bo); - if (unlikely(ret != 0)) - return ret; - - ret = ttm_bo_mmap_obj(vma, bo); - if (unlikely(ret != 0)) - goto out_unref; - - vma->vm_ops = &vmw_vm_ops; - - /* Use VM_PFNMAP rather than VM_MIXEDMAP if not a COW mapping */ - if (!is_cow_mapping(vma->vm_flags)) - vma->vm_flags = (vma->vm_flags & ~VM_MIXEDMAP) | VM_PFNMAP; - - ttm_bo_put(bo); /* release extra ref taken by ttm_bo_mmap_obj() */ - - return 0; - -out_unref: - ttm_bo_put(bo); - return ret; -} - -- 2.38.1