| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Dave Airlie | 713 | 43.64% | 5 | 9.80% |
| Al Viro | 327 | 20.01% | 14 | 27.45% |
| Linus Torvalds (pre-git) | 193 | 11.81% | 8 | 15.69% |
| Tvrtko A. Ursulin | 120 | 7.34% | 2 | 3.92% |
| Daniel Vetter | 89 | 5.45% | 6 | 11.76% |
| Thomas Zimmermann | 68 | 4.16% | 3 | 5.88% |
| Eric Anholt | 41 | 2.51% | 1 | 1.96% |
| Linus Torvalds | 21 | 1.29% | 1 | 1.96% |
| David S. Miller | 20 | 1.22% | 1 | 1.96% |
| Jeffy Chen | 12 | 0.73% | 1 | 1.96% |
| Ian Romanick | 7 | 0.43% | 1 | 1.96% |
| Kristian H. Kristensen | 6 | 0.37% | 1 | 1.96% |
| Emil Velikov | 5 | 0.31% | 1 | 1.96% |
| Christian Dietrich | 3 | 0.18% | 1 | 1.96% |
| Paul Gortmaker | 3 | 0.18% | 1 | 1.96% |
| Sam Ravnborg | 2 | 0.12% | 1 | 1.96% |
| Jani Nikula | 2 | 0.12% | 1 | 1.96% |
| Ville Syrjälä | 1 | 0.06% | 1 | 1.96% |
| Mark Yacoub | 1 | 0.06% | 1 | 1.96% |
| Total | 1634 | 51 |
/* * \file drm_ioc32.c * * 32-bit ioctl compatibility routines for the DRM. * * \author Paul Mackerras <paulus@samba.org> * * Copyright (C) Paul Mackerras 2005. * All Rights Reserved. * * 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, sublicense, * 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 NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHOR 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 <linux/compat.h> #include <linux/ratelimit.h> #include <linux/export.h> #include <drm/drm_device.h> #include <drm/drm_file.h> #include <drm/drm_print.h> #include "drm_crtc_internal.h" #include "drm_internal.h" #define DRM_IOCTL_VERSION32 DRM_IOWR(0x00, drm_version32_t) #define DRM_IOCTL_GET_UNIQUE32 DRM_IOWR(0x01, drm_unique32_t) #define DRM_IOCTL_GET_MAP32 DRM_IOWR(0x04, drm_map32_t) #define DRM_IOCTL_GET_CLIENT32 DRM_IOWR(0x05, drm_client32_t) #define DRM_IOCTL_GET_STATS32 DRM_IOR( 0x06, drm_stats32_t) #define DRM_IOCTL_SET_UNIQUE32 DRM_IOW( 0x10, drm_unique32_t) #define DRM_IOCTL_ADD_MAP32 DRM_IOWR(0x15, drm_map32_t) #define DRM_IOCTL_ADD_BUFS32 DRM_IOWR(0x16, drm_buf_desc32_t) #define DRM_IOCTL_MARK_BUFS32 DRM_IOW( 0x17, drm_buf_desc32_t) #define DRM_IOCTL_INFO_BUFS32 DRM_IOWR(0x18, drm_buf_info32_t) #define DRM_IOCTL_MAP_BUFS32 DRM_IOWR(0x19, drm_buf_map32_t) #define DRM_IOCTL_FREE_BUFS32 DRM_IOW( 0x1a, drm_buf_free32_t) #define DRM_IOCTL_RM_MAP32 DRM_IOW( 0x1b, drm_map32_t) #define DRM_IOCTL_SET_SAREA_CTX32 DRM_IOW( 0x1c, drm_ctx_priv_map32_t) #define DRM_IOCTL_GET_SAREA_CTX32 DRM_IOWR(0x1d, drm_ctx_priv_map32_t) #define DRM_IOCTL_RES_CTX32 DRM_IOWR(0x26, drm_ctx_res32_t) #define DRM_IOCTL_DMA32 DRM_IOWR(0x29, drm_dma32_t) #define DRM_IOCTL_AGP_ENABLE32 DRM_IOW( 0x32, drm_agp_mode32_t) #define DRM_IOCTL_AGP_INFO32 DRM_IOR( 0x33, drm_agp_info32_t) #define DRM_IOCTL_AGP_ALLOC32 DRM_IOWR(0x34, drm_agp_buffer32_t) #define DRM_IOCTL_AGP_FREE32 DRM_IOW( 0x35, drm_agp_buffer32_t) #define DRM_IOCTL_AGP_BIND32 DRM_IOW( 0x36, drm_agp_binding32_t) #define DRM_IOCTL_AGP_UNBIND32 DRM_IOW( 0x37, drm_agp_binding32_t) #define DRM_IOCTL_SG_ALLOC32 DRM_IOW( 0x38, drm_scatter_gather32_t) #define DRM_IOCTL_SG_FREE32 DRM_IOW( 0x39, drm_scatter_gather32_t) #define DRM_IOCTL_UPDATE_DRAW32 DRM_IOW( 0x3f, drm_update_draw32_t) #define DRM_IOCTL_WAIT_VBLANK32 DRM_IOWR(0x3a, drm_wait_vblank32_t) #define DRM_IOCTL_MODE_ADDFB232 DRM_IOWR(0xb8, drm_mode_fb_cmd232_t) typedef struct drm_version_32 { int version_major; /* Major version */ int version_minor; /* Minor version */ int version_patchlevel; /* Patch level */ u32 name_len; /* Length of name buffer */ u32 name; /* Name of driver */ u32 date_len; /* Length of date buffer */ u32 date; /* User-space buffer to hold date */ u32 desc_len; /* Length of desc buffer */ u32 desc; /* User-space buffer to hold desc */ } drm_version32_t; static int compat_drm_version(struct file *file, unsigned int cmd, unsigned long arg) { drm_version32_t v32; struct drm_version v; int err; if (copy_from_user(&v32, (void __user *)arg, sizeof(v32))) return -EFAULT; memset(&v, 0, sizeof(v)); v = (struct drm_version) { .name_len = v32.name_len, .name = compat_ptr(v32.name), .date_len = v32.date_len, .date = compat_ptr(v32.date), .desc_len = v32.desc_len, .desc = compat_ptr(v32.desc), }; err = drm_ioctl_kernel(file, drm_version, &v, DRM_RENDER_ALLOW); if (err) return err; v32.version_major = v.version_major; v32.version_minor = v.version_minor; v32.version_patchlevel = v.version_patchlevel; v32.name_len = v.name_len; v32.date_len = v.date_len; v32.desc_len = v.desc_len; if (copy_to_user((void __user *)arg, &v32, sizeof(v32))) return -EFAULT; return 0; } typedef struct drm_unique32 { u32 unique_len; /* Length of unique */ u32 unique; /* Unique name for driver instantiation */ } drm_unique32_t; static int compat_drm_getunique(struct file *file, unsigned int cmd, unsigned long arg) { drm_unique32_t uq32; struct drm_unique uq; int err; if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32))) return -EFAULT; memset(&uq, 0, sizeof(uq)); uq = (struct drm_unique){ .unique_len = uq32.unique_len, .unique = compat_ptr(uq32.unique), }; err = drm_ioctl_kernel(file, drm_getunique, &uq, 0); if (err) return err; uq32.unique_len = uq.unique_len; if (copy_to_user((void __user *)arg, &uq32, sizeof(uq32))) return -EFAULT; return 0; } static int compat_drm_setunique(struct file *file, unsigned int cmd, unsigned long arg) { /* it's dead */ return -EINVAL; } typedef struct drm_client32 { int idx; /* Which client desired? */ int auth; /* Is client authenticated? */ u32 pid; /* Process ID */ u32 uid; /* User ID */ u32 magic; /* Magic */ u32 iocs; /* Ioctl count */ } drm_client32_t; static int compat_drm_getclient(struct file *file, unsigned int cmd, unsigned long arg) { drm_client32_t c32; drm_client32_t __user *argp = (void __user *)arg; struct drm_client client; int err; if (copy_from_user(&c32, argp, sizeof(c32))) return -EFAULT; memset(&client, 0, sizeof(client)); client.idx = c32.idx; err = drm_ioctl_kernel(file, drm_getclient, &client, 0); if (err) return err; c32.idx = client.idx; c32.auth = client.auth; c32.pid = client.pid; c32.uid = client.uid; c32.magic = client.magic; c32.iocs = client.iocs; if (copy_to_user(argp, &c32, sizeof(c32))) return -EFAULT; return 0; } typedef struct drm_stats32 { u32 count; struct { u32 value; enum drm_stat_type type; } data[15]; } drm_stats32_t; static int compat_drm_getstats(struct file *file, unsigned int cmd, unsigned long arg) { drm_stats32_t __user *argp = (void __user *)arg; /* getstats is defunct, just clear */ if (clear_user(argp, sizeof(drm_stats32_t))) return -EFAULT; return 0; } #if defined(CONFIG_X86) typedef struct drm_update_draw32 { drm_drawable_t handle; unsigned int type; unsigned int num; /* 64-bit version has a 32-bit pad here */ u64 data; /**< Pointer */ } __packed drm_update_draw32_t; static int compat_drm_update_draw(struct file *file, unsigned int cmd, unsigned long arg) { /* update_draw is defunct */ return 0; } #endif struct drm_wait_vblank_request32 { enum drm_vblank_seq_type type; unsigned int sequence; u32 signal; }; struct drm_wait_vblank_reply32 { enum drm_vblank_seq_type type; unsigned int sequence; s32 tval_sec; s32 tval_usec; }; typedef union drm_wait_vblank32 { struct drm_wait_vblank_request32 request; struct drm_wait_vblank_reply32 reply; } drm_wait_vblank32_t; static int compat_drm_wait_vblank(struct file *file, unsigned int cmd, unsigned long arg) { drm_wait_vblank32_t __user *argp = (void __user *)arg; drm_wait_vblank32_t req32; union drm_wait_vblank req; int err; if (copy_from_user(&req32, argp, sizeof(req32))) return -EFAULT; memset(&req, 0, sizeof(req)); req.request.type = req32.request.type; req.request.sequence = req32.request.sequence; req.request.signal = req32.request.signal; err = drm_ioctl_kernel(file, drm_wait_vblank_ioctl, &req, 0); req32.reply.type = req.reply.type; req32.reply.sequence = req.reply.sequence; req32.reply.tval_sec = req.reply.tval_sec; req32.reply.tval_usec = req.reply.tval_usec; if (copy_to_user(argp, &req32, sizeof(req32))) return -EFAULT; return err; } #if defined(CONFIG_X86) typedef struct drm_mode_fb_cmd232 { u32 fb_id; u32 width; u32 height; u32 pixel_format; u32 flags; u32 handles[4]; u32 pitches[4]; u32 offsets[4]; u64 modifier[4]; } __packed drm_mode_fb_cmd232_t; static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd, unsigned long arg) { struct drm_mode_fb_cmd232 __user *argp = (void __user *)arg; struct drm_mode_fb_cmd2 req64; int err; memset(&req64, 0, sizeof(req64)); if (copy_from_user(&req64, argp, offsetof(drm_mode_fb_cmd232_t, modifier))) return -EFAULT; if (copy_from_user(&req64.modifier, &argp->modifier, sizeof(req64.modifier))) return -EFAULT; err = drm_ioctl_kernel(file, drm_mode_addfb2, &req64, 0); if (err) return err; if (put_user(req64.fb_id, &argp->fb_id)) return -EFAULT; return 0; } #endif static struct { drm_ioctl_compat_t *fn; char *name; } drm_compat_ioctls[] = { #define DRM_IOCTL32_DEF(n, f) [DRM_IOCTL_NR(n##32)] = {.fn = f, .name = #n} DRM_IOCTL32_DEF(DRM_IOCTL_VERSION, compat_drm_version), DRM_IOCTL32_DEF(DRM_IOCTL_GET_UNIQUE, compat_drm_getunique), DRM_IOCTL32_DEF(DRM_IOCTL_GET_CLIENT, compat_drm_getclient), DRM_IOCTL32_DEF(DRM_IOCTL_GET_STATS, compat_drm_getstats), DRM_IOCTL32_DEF(DRM_IOCTL_SET_UNIQUE, compat_drm_setunique), #if defined(CONFIG_X86) DRM_IOCTL32_DEF(DRM_IOCTL_UPDATE_DRAW, compat_drm_update_draw), #endif DRM_IOCTL32_DEF(DRM_IOCTL_WAIT_VBLANK, compat_drm_wait_vblank), #if defined(CONFIG_X86) DRM_IOCTL32_DEF(DRM_IOCTL_MODE_ADDFB2, compat_drm_mode_addfb2), #endif }; /** * drm_compat_ioctl - 32bit IOCTL compatibility handler for DRM drivers * @filp: file this ioctl is called on * @cmd: ioctl cmd number * @arg: user argument * * Compatibility handler for 32 bit userspace running on 64 kernels. All actual * IOCTL handling is forwarded to drm_ioctl(), while marshalling structures as * appropriate. Note that this only handles DRM core IOCTLs, if the driver has * botched IOCTL itself, it must handle those by wrapping this function. * * Returns: * Zero on success, negative error code on failure. */ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { unsigned int nr = DRM_IOCTL_NR(cmd); struct drm_file *file_priv = filp->private_data; struct drm_device *dev = file_priv->minor->dev; drm_ioctl_compat_t *fn; int ret; /* Assume that ioctls without an explicit compat routine will just * work. This may not always be a good assumption, but it's better * than always failing. */ if (nr >= ARRAY_SIZE(drm_compat_ioctls)) return drm_ioctl(filp, cmd, arg); fn = drm_compat_ioctls[nr].fn; if (!fn) return drm_ioctl(filp, cmd, arg); drm_dbg_core(dev, "comm=\"%s\", pid=%d, dev=0x%lx, auth=%d, %s\n", current->comm, task_pid_nr(current), (long)old_encode_dev(file_priv->minor->kdev->devt), file_priv->authenticated, drm_compat_ioctls[nr].name); ret = (*fn)(filp, cmd, arg); if (ret) drm_dbg_core(dev, "ret = %d\n", ret); return ret; } EXPORT_SYMBOL(drm_compat_ioctl);
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