From patchwork Tue Apr 19 20:42:01 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gustavo Padovan X-Patchwork-Id: 8883331 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 42142BF29F for ; Tue, 19 Apr 2016 20:42:25 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id DAD0320320 for ; Tue, 19 Apr 2016 20:42:23 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 647E6202FE for ; Tue, 19 Apr 2016 20:42:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CF6886E849; Tue, 19 Apr 2016 20:42:19 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-yw0-f195.google.com (mail-yw0-f195.google.com [209.85.161.195]) by gabe.freedesktop.org (Postfix) with ESMTPS id 86D026E7E2 for ; Tue, 19 Apr 2016 20:42:13 +0000 (UTC) Received: by mail-yw0-f195.google.com with SMTP id v81so4008028ywa.2 for ; Tue, 19 Apr 2016 13:42:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=+bSpH4xTe1G9CUvi0HVEW+0TY/hL1zPT8OWZOUrMcsM=; b=MbVSBKMRPVHFA3cOerVoiT8bHffsiQc5OnddMdDUuU/yXOFVWSS8oa81HLre/7XEXt /Uwp5+fTRPQEklmxkHVlScVeNMjY/h1agEkrkG5oFmlFE0D9s0InNue2HnMRdPfkmwZa 8LAmz9xUWqDCs1lgVw+tzsqtLHA/09r3kvSe1jR1nBaigB7WszHn4pwsWmJ7zGOB8bYH 9MRliR2ff5w0yme7EE1QBm1VIQGFlVH8Ar4SRmNXCWIx8mr+Pmbiyslci0IHc4E5FcQR WPl6ojdWzLNYjrMVOpbHVFQ1ljXNBC1pJJzHyv/tVR3arl7mV0IlaEKecvu2Y1C6TBfw IeMg== X-Gm-Message-State: AOPr4FU26KkYCe1VMbq6jgdvI/5cqFYYYiqKPBGTeGZWmDstHv93mpO1jZuRCFHMx0DlSQ== X-Received: by 10.129.38.2 with SMTP id m2mr3011068ywm.128.1461098532156; Tue, 19 Apr 2016 13:42:12 -0700 (PDT) Received: from jade.localdomain ([201.82.24.203]) by smtp.gmail.com with ESMTPSA id i188sm40325689ywg.33.2016.04.19.13.42.08 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 19 Apr 2016 13:42:11 -0700 (PDT) From: Gustavo Padovan To: Greg Kroah-Hartman Subject: [PATCH v10 RESEND 2/3] kernel.h: add u64_to_user_ptr() Date: Tue, 19 Apr 2016 17:42:01 -0300 Message-Id: <1461098522-1508-2-git-send-email-gustavo@padovan.org> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1461098522-1508-1-git-send-email-gustavo@padovan.org> References: <1461098522-1508-1-git-send-email-gustavo@padovan.org> Cc: devel@driverdev.osuosl.org, Daniel Stone , Daniel Vetter , Riley Andrews , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= , Joe Perches , Daniel Vetter , Andrew Morton , Gustavo Padovan , John Harrison X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Spam-Status: No, score=-3.8 required=5.0 tests=BAYES_00, RCVD_IN_BL_SPAMCOP_NET, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Gustavo Padovan This function had copies in 3 different files. Unify them in kernel.h. Cc: Joe Perches Cc: Andrew Morton Cc: David Airlie Cc: Daniel Vetter Cc: Rob Clark Signed-off-by: Gustavo Padovan --- drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 11 +++-------- drivers/gpu/drm/i915/i915_drv.h | 5 ----- drivers/gpu/drm/i915/i915_gem.c | 14 +++++++------- drivers/gpu/drm/i915/i915_gem_execbuffer.c | 14 +++++++------- drivers/gpu/drm/msm/msm_gem_submit.c | 11 +++-------- include/linux/kernel.h | 5 +++++ 6 files changed, 25 insertions(+), 35 deletions(-) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c index 236ada9..afdd55d 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c @@ -28,11 +28,6 @@ #define BO_LOCKED 0x4000 #define BO_PINNED 0x2000 -static inline void __user *to_user_ptr(u64 address) -{ - return (void __user *)(uintptr_t)address; -} - static struct etnaviv_gem_submit *submit_create(struct drm_device *dev, struct etnaviv_gpu *gpu, size_t nr) { @@ -347,21 +342,21 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data, cmdbuf->exec_state = args->exec_state; cmdbuf->ctx = file->driver_priv; - ret = copy_from_user(bos, to_user_ptr(args->bos), + ret = copy_from_user(bos, u64_to_user_ptr(args->bos), args->nr_bos * sizeof(*bos)); if (ret) { ret = -EFAULT; goto err_submit_cmds; } - ret = copy_from_user(relocs, to_user_ptr(args->relocs), + ret = copy_from_user(relocs, u64_to_user_ptr(args->relocs), args->nr_relocs * sizeof(*relocs)); if (ret) { ret = -EFAULT; goto err_submit_cmds; } - ret = copy_from_user(stream, to_user_ptr(args->stream), + ret = copy_from_user(stream, u64_to_user_ptr(args->stream), args->stream_size); if (ret) { ret = -EFAULT; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 1048093..bb624cc 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -3576,11 +3576,6 @@ static inline i915_reg_t i915_vgacntrl_reg(struct drm_device *dev) return VGACNTRL; } -static inline void __user *to_user_ptr(u64 address) -{ - return (void __user *)(uintptr_t)address; -} - static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m) { unsigned long j = msecs_to_jiffies(m); diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index dabc089..2889716 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -324,7 +324,7 @@ i915_gem_phys_pwrite(struct drm_i915_gem_object *obj, { struct drm_device *dev = obj->base.dev; void *vaddr = obj->phys_handle->vaddr + args->offset; - char __user *user_data = to_user_ptr(args->data_ptr); + char __user *user_data = u64_to_user_ptr(args->data_ptr); int ret = 0; /* We manually control the domain here and pretend that it @@ -605,7 +605,7 @@ i915_gem_shmem_pread(struct drm_device *dev, int needs_clflush = 0; struct sg_page_iter sg_iter; - user_data = to_user_ptr(args->data_ptr); + user_data = u64_to_user_ptr(args->data_ptr); remain = args->size; obj_do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj); @@ -692,7 +692,7 @@ i915_gem_pread_ioctl(struct drm_device *dev, void *data, return 0; if (!access_ok(VERIFY_WRITE, - to_user_ptr(args->data_ptr), + u64_to_user_ptr(args->data_ptr), args->size)) return -EFAULT; @@ -783,7 +783,7 @@ i915_gem_gtt_pwrite_fast(struct drm_device *dev, if (ret) goto out_unpin; - user_data = to_user_ptr(args->data_ptr); + user_data = u64_to_user_ptr(args->data_ptr); remain = args->size; offset = i915_gem_obj_ggtt_offset(obj) + args->offset; @@ -907,7 +907,7 @@ i915_gem_shmem_pwrite(struct drm_device *dev, int needs_clflush_before = 0; struct sg_page_iter sg_iter; - user_data = to_user_ptr(args->data_ptr); + user_data = u64_to_user_ptr(args->data_ptr); remain = args->size; obj_do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj); @@ -1036,12 +1036,12 @@ i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, return 0; if (!access_ok(VERIFY_READ, - to_user_ptr(args->data_ptr), + u64_to_user_ptr(args->data_ptr), args->size)) return -EFAULT; if (likely(!i915.prefault_disable)) { - ret = fault_in_multipages_readable(to_user_ptr(args->data_ptr), + ret = fault_in_multipages_readable(u64_to_user_ptr(args->data_ptr), args->size); if (ret) return -EFAULT; diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 1328bc5..e60b4e7 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -514,7 +514,7 @@ i915_gem_execbuffer_relocate_vma(struct i915_vma *vma, struct drm_i915_gem_exec_object2 *entry = vma->exec_entry; int remain, ret; - user_relocs = to_user_ptr(entry->relocs_ptr); + user_relocs = u64_to_user_ptr(entry->relocs_ptr); remain = entry->relocation_count; while (remain) { @@ -865,7 +865,7 @@ i915_gem_execbuffer_relocate_slow(struct drm_device *dev, u64 invalid_offset = (u64)-1; int j; - user_relocs = to_user_ptr(exec[i].relocs_ptr); + user_relocs = u64_to_user_ptr(exec[i].relocs_ptr); if (copy_from_user(reloc+total, user_relocs, exec[i].relocation_count * sizeof(*reloc))) { @@ -1009,7 +1009,7 @@ validate_exec_list(struct drm_device *dev, invalid_flags |= EXEC_OBJECT_NEEDS_GTT; for (i = 0; i < count; i++) { - char __user *ptr = to_user_ptr(exec[i].relocs_ptr); + char __user *ptr = u64_to_user_ptr(exec[i].relocs_ptr); int length; /* limited by fault_in_pages_readable() */ if (exec[i].flags & invalid_flags) @@ -1696,7 +1696,7 @@ i915_gem_execbuffer(struct drm_device *dev, void *data, return -ENOMEM; } ret = copy_from_user(exec_list, - to_user_ptr(args->buffers_ptr), + u64_to_user_ptr(args->buffers_ptr), sizeof(*exec_list) * args->buffer_count); if (ret != 0) { DRM_DEBUG("copy %d exec entries failed %d\n", @@ -1732,7 +1732,7 @@ i915_gem_execbuffer(struct drm_device *dev, void *data, ret = i915_gem_do_execbuffer(dev, data, file, &exec2, exec2_list); if (!ret) { struct drm_i915_gem_exec_object __user *user_exec_list = - to_user_ptr(args->buffers_ptr); + u64_to_user_ptr(args->buffers_ptr); /* Copy the new buffer offsets back to the user's exec list. */ for (i = 0; i < args->buffer_count; i++) { @@ -1786,7 +1786,7 @@ i915_gem_execbuffer2(struct drm_device *dev, void *data, return -ENOMEM; } ret = copy_from_user(exec2_list, - to_user_ptr(args->buffers_ptr), + u64_to_user_ptr(args->buffers_ptr), sizeof(*exec2_list) * args->buffer_count); if (ret != 0) { DRM_DEBUG("copy %d exec entries failed %d\n", @@ -1799,7 +1799,7 @@ i915_gem_execbuffer2(struct drm_device *dev, void *data, if (!ret) { /* Copy the new buffer offsets back to the user's exec list. */ struct drm_i915_gem_exec_object2 __user *user_exec_list = - to_user_ptr(args->buffers_ptr); + u64_to_user_ptr(args->buffers_ptr); int i; for (i = 0; i < args->buffer_count; i++) { diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 43d2181..23d2528 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -28,11 +28,6 @@ #define BO_LOCKED 0x4000 #define BO_PINNED 0x2000 -static inline void __user *to_user_ptr(u64 address) -{ - return (void __user *)(uintptr_t)address; -} - static struct msm_gem_submit *submit_create(struct drm_device *dev, struct msm_gpu *gpu, int nr) { @@ -68,7 +63,7 @@ static int submit_lookup_objects(struct msm_gem_submit *submit, struct drm_gem_object *obj; struct msm_gem_object *msm_obj; void __user *userptr = - to_user_ptr(args->bos + (i * sizeof(submit_bo))); + u64_to_user_ptr(args->bos + (i * sizeof(submit_bo))); ret = copy_from_user(&submit_bo, userptr, sizeof(submit_bo)); if (ret) { @@ -257,7 +252,7 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob for (i = 0; i < nr_relocs; i++) { struct drm_msm_gem_submit_reloc submit_reloc; void __user *userptr = - to_user_ptr(relocs + (i * sizeof(submit_reloc))); + u64_to_user_ptr(relocs + (i * sizeof(submit_reloc))); uint32_t iova, off; bool valid; @@ -356,7 +351,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, for (i = 0; i < args->nr_cmds; i++) { struct drm_msm_gem_submit_cmd submit_cmd; void __user *userptr = - to_user_ptr(args->cmds + (i * sizeof(submit_cmd))); + u64_to_user_ptr(args->cmds + (i * sizeof(submit_cmd))); struct msm_gem_object *msm_obj; uint32_t iova; diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 2f7775e..0c843ec 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -53,6 +53,11 @@ #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) +static inline void __user *u64_to_user_ptr(u64 address) +{ + return (void __user *)(uintptr_t)address; +} + /* * This looks more complex than it should be. But we need to * get the type for the ~ right in round_down (it needs to be