diff options
Diffstat (limited to 'drivers/char/drm/drm_ioc32.c')
| -rw-r--r-- | drivers/char/drm/drm_ioc32.c | 1073 |
1 files changed, 0 insertions, 1073 deletions
diff --git a/drivers/char/drm/drm_ioc32.c b/drivers/char/drm/drm_ioc32.c deleted file mode 100644 index 90f5a8d9bdc..00000000000 --- a/drivers/char/drm/drm_ioc32.c +++ /dev/null @@ -1,1073 +0,0 @@ -/** - * \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 "drmP.h" -#include "drm_core.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_WAIT_VBLANK32 DRM_IOWR(0x3a, drm_wait_vblank32_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 __user *version; - int err; - - if (copy_from_user(&v32, (void __user *)arg, sizeof(v32))) - return -EFAULT; - - version = compat_alloc_user_space(sizeof(*version)); - if (!access_ok(VERIFY_WRITE, version, sizeof(*version))) - return -EFAULT; - if (__put_user(v32.name_len, &version->name_len) - || __put_user((void __user *)(unsigned long)v32.name, - &version->name) - || __put_user(v32.date_len, &version->date_len) - || __put_user((void __user *)(unsigned long)v32.date, - &version->date) - || __put_user(v32.desc_len, &version->desc_len) - || __put_user((void __user *)(unsigned long)v32.desc, - &version->desc)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_VERSION, (unsigned long)version); - if (err) - return err; - - if (__get_user(v32.version_major, &version->version_major) - || __get_user(v32.version_minor, &version->version_minor) - || __get_user(v32.version_patchlevel, &version->version_patchlevel) - || __get_user(v32.name_len, &version->name_len) - || __get_user(v32.date_len, &version->date_len) - || __get_user(v32.desc_len, &version->desc_len)) - return -EFAULT; - - 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 __user *u; - int err; - - if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32))) - return -EFAULT; - - u = compat_alloc_user_space(sizeof(*u)); - if (!access_ok(VERIFY_WRITE, u, sizeof(*u))) - return -EFAULT; - if (__put_user(uq32.unique_len, &u->unique_len) - || __put_user((void __user *)(unsigned long)uq32.unique, - &u->unique)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_GET_UNIQUE, (unsigned long)u); - if (err) - return err; - - if (__get_user(uq32.unique_len, &u->unique_len)) - return -EFAULT; - 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) -{ - drm_unique32_t uq32; - struct drm_unique __user *u; - - if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32))) - return -EFAULT; - - u = compat_alloc_user_space(sizeof(*u)); - if (!access_ok(VERIFY_WRITE, u, sizeof(*u))) - return -EFAULT; - if (__put_user(uq32.unique_len, &u->unique_len) - || __put_user((void __user *)(unsigned long)uq32.unique, - &u->unique)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_SET_UNIQUE, (unsigned long)u); -} - -typedef struct drm_map32 { - u32 offset; /**< Requested physical address (0 for SAREA)*/ - u32 size; /**< Requested physical size (bytes) */ - enum drm_map_type type; /**< Type of memory to map */ - enum drm_map_flags flags; /**< Flags */ - u32 handle; /**< User-space: "Handle" to pass to mmap() */ - int mtrr; /**< MTRR slot used */ -} drm_map32_t; - -static int compat_drm_getmap(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_map32_t __user *argp = (void __user *)arg; - drm_map32_t m32; - struct drm_map __user *map; - int idx, err; - void *handle; - - if (get_user(idx, &argp->offset)) - return -EFAULT; - - map = compat_alloc_user_space(sizeof(*map)); - if (!access_ok(VERIFY_WRITE, map, sizeof(*map))) - return -EFAULT; - if (__put_user(idx, &map->offset)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_GET_MAP, (unsigned long)map); - if (err) - return err; - - if (__get_user(m32.offset, &map->offset) - || __get_user(m32.size, &map->size) - || __get_user(m32.type, &map->type) - || __get_user(m32.flags, &map->flags) - || __get_user(handle, &map->handle) - || __get_user(m32.mtrr, &map->mtrr)) - return -EFAULT; - - m32.handle = (unsigned long)handle; - if (copy_to_user(argp, &m32, sizeof(m32))) - return -EFAULT; - return 0; - -} - -static int compat_drm_addmap(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_map32_t __user *argp = (void __user *)arg; - drm_map32_t m32; - struct drm_map __user *map; - int err; - void *handle; - - if (copy_from_user(&m32, argp, sizeof(m32))) - return -EFAULT; - - map = compat_alloc_user_space(sizeof(*map)); - if (!access_ok(VERIFY_WRITE, map, sizeof(*map))) - return -EFAULT; - if (__put_user(m32.offset, &map->offset) - || __put_user(m32.size, &map->size) - || __put_user(m32.type, &map->type) - || __put_user(m32.flags, &map->flags)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_ADD_MAP, (unsigned long)map); - if (err) - return err; - - if (__get_user(m32.offset, &map->offset) - || __get_user(m32.mtrr, &map->mtrr) - || __get_user(handle, &map->handle)) - return -EFAULT; - - m32.handle = (unsigned long)handle; - if (m32.handle != (unsigned long)handle && printk_ratelimit()) - printk(KERN_ERR "compat_drm_addmap truncated handle" - " %p for type %d offset %x\n", - handle, m32.type, m32.offset); - - if (copy_to_user(argp, &m32, sizeof(m32))) - return -EFAULT; - - return 0; -} - -static int compat_drm_rmmap(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_map32_t __user *argp = (void __user *)arg; - struct drm_map __user *map; - u32 handle; - - if (get_user(handle, &argp->handle)) - return -EFAULT; - - map = compat_alloc_user_space(sizeof(*map)); - if (!access_ok(VERIFY_WRITE, map, sizeof(*map))) - return -EFAULT; - if (__put_user((void *)(unsigned long)handle, &map->handle)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_RM_MAP, (unsigned long)map); -} - -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 __user *client; - int idx, err; - - if (get_user(idx, &argp->idx)) - return -EFAULT; - - client = compat_alloc_user_space(sizeof(*client)); - if (!access_ok(VERIFY_WRITE, client, sizeof(*client))) - return -EFAULT; - if (__put_user(idx, &client->idx)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_GET_CLIENT, (unsigned long)client); - if (err) - return err; - - if (__get_user(c32.auth, &client->auth) - || __get_user(c32.pid, &client->pid) - || __get_user(c32.uid, &client->uid) - || __get_user(c32.magic, &client->magic) - || __get_user(c32.iocs, &client->iocs)) - return -EFAULT; - - 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 s32; - drm_stats32_t __user *argp = (void __user *)arg; - struct drm_stats __user *stats; - int i, err; - - stats = compat_alloc_user_space(sizeof(*stats)); - if (!access_ok(VERIFY_WRITE, stats, sizeof(*stats))) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_GET_STATS, (unsigned long)stats); - if (err) - return err; - - if (__get_user(s32.count, &stats->count)) - return -EFAULT; - for (i = 0; i < 15; ++i) - if (__get_user(s32.data[i].value, &stats->data[i].value) - || __get_user(s32.data[i].type, &stats->data[i].type)) - return -EFAULT; - - if (copy_to_user(argp, &s32, sizeof(s32))) - return -EFAULT; - return 0; -} - -typedef struct drm_buf_desc32 { - int count; /**< Number of buffers of this size */ - int size; /**< Size in bytes */ - int low_mark; /**< Low water mark */ - int high_mark; /**< High water mark */ - int flags; - u32 agp_start; /**< Start address in the AGP aperture */ -} drm_buf_desc32_t; - -static int compat_drm_addbufs(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_buf_desc32_t __user *argp = (void __user *)arg; - struct drm_buf_desc __user *buf; - int err; - unsigned long agp_start; - - buf = compat_alloc_user_space(sizeof(*buf)); - if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf)) - || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))) - return -EFAULT; - - if (__copy_in_user(buf, argp, offsetof(drm_buf_desc32_t, agp_start)) - || __get_user(agp_start, &argp->agp_start) - || __put_user(agp_start, &buf->agp_start)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_ADD_BUFS, (unsigned long)buf); - if (err) - return err; - - if (__copy_in_user(argp, buf, offsetof(drm_buf_desc32_t, agp_start)) - || __get_user(agp_start, &buf->agp_start) - || __put_user(agp_start, &argp->agp_start)) - return -EFAULT; - - return 0; -} - -static int compat_drm_markbufs(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_buf_desc32_t b32; - drm_buf_desc32_t __user *argp = (void __user *)arg; - struct drm_buf_desc __user *buf; - - if (copy_from_user(&b32, argp, sizeof(b32))) - return -EFAULT; - - buf = compat_alloc_user_space(sizeof(*buf)); - if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf))) - return -EFAULT; - - if (__put_user(b32.size, &buf->size) - || __put_user(b32.low_mark, &buf->low_mark) - || __put_user(b32.high_mark, &buf->high_mark)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_MARK_BUFS, (unsigned long)buf); -} - -typedef struct drm_buf_info32 { - int count; /**< Entries in list */ - u32 list; -} drm_buf_info32_t; - -static int compat_drm_infobufs(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_buf_info32_t req32; - drm_buf_info32_t __user *argp = (void __user *)arg; - drm_buf_desc32_t __user *to; - struct drm_buf_info __user *request; - struct drm_buf_desc __user *list; - size_t nbytes; - int i, err; - int count, actual; - - if (copy_from_user(&req32, argp, sizeof(req32))) - return -EFAULT; - - count = req32.count; - to = (drm_buf_desc32_t __user *) (unsigned long)req32.list; - if (count < 0) - count = 0; - if (count > 0 - && !access_ok(VERIFY_WRITE, to, count * sizeof(drm_buf_desc32_t))) - return -EFAULT; - - nbytes = sizeof(*request) + count * sizeof(struct drm_buf_desc); - request = compat_alloc_user_space(nbytes); - if (!access_ok(VERIFY_WRITE, request, nbytes)) - return -EFAULT; - list = (struct drm_buf_desc *) (request + 1); - - if (__put_user(count, &request->count) - || __put_user(list, &request->list)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_INFO_BUFS, (unsigned long)request); - if (err) - return err; - - if (__get_user(actual, &request->count)) - return -EFAULT; - if (count >= actual) - for (i = 0; i < actual; ++i) - if (__copy_in_user(&to[i], &list[i], - offsetof(struct drm_buf_desc, flags))) - return -EFAULT; - - if (__put_user(actual, &argp->count)) - return -EFAULT; - - return 0; -} - -typedef struct drm_buf_pub32 { - int idx; /**< Index into the master buffer list */ - int total; /**< Buffer size */ - int used; /**< Amount of buffer in use (for DMA) */ - u32 address; /**< Address of buffer */ -} drm_buf_pub32_t; - -typedef struct drm_buf_map32 { - int count; /**< Length of the buffer list */ - u32 virtual; /**< Mmap'd area in user-virtual */ - u32 list; /**< Buffer information */ -} drm_buf_map32_t; - -static int compat_drm_mapbufs(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_buf_map32_t __user *argp = (void __user *)arg; - drm_buf_map32_t req32; - drm_buf_pub32_t __user *list32; - struct drm_buf_map __user *request; - struct drm_buf_pub __user *list; - int i, err; - int count, actual; - size_t nbytes; - void __user *addr; - - if (copy_from_user(&req32, argp, sizeof(req32))) - return -EFAULT; - count = req32.count; - list32 = (void __user *)(unsigned long)req32.list; - - if (count < 0) - return -EINVAL; - nbytes = sizeof(*request) + count * sizeof(struct drm_buf_pub); - request = compat_alloc_user_space(nbytes); - if (!access_ok(VERIFY_WRITE, request, nbytes)) - return -EFAULT; - list = (struct drm_buf_pub *) (request + 1); - - if (__put_user(count, &request->count) - || __put_user(list, &request->list)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_MAP_BUFS, (unsigned long)request); - if (err) - return err; - - if (__get_user(actual, &request->count)) - return -EFAULT; - if (count >= actual) - for (i = 0; i < actual; ++i) - if (__copy_in_user(&list32[i], &list[i], - offsetof(struct drm_buf_pub, address)) - || __get_user(addr, &list[i].address) - || __put_user((unsigned long)addr, - &list32[i].address)) - return -EFAULT; - - if (__put_user(actual, &argp->count) - || __get_user(addr, &request->virtual) - || __put_user((unsigned long)addr, &argp->virtual)) - return -EFAULT; - - return 0; -} - -typedef struct drm_buf_free32 { - int count; - u32 list; -} drm_buf_free32_t; - -static int compat_drm_freebufs(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_buf_free32_t req32; - struct drm_buf_free __user *request; - drm_buf_free32_t __user *argp = (void __user *)arg; - - if (copy_from_user(&req32, argp, sizeof(req32))) - return -EFAULT; - - request = compat_alloc_user_space(sizeof(*request)); - if (!access_ok(VERIFY_WRITE, request, sizeof(*request))) - return -EFAULT; - if (__put_user(req32.count, &request->count) - || __put_user((int __user *)(unsigned long)req32.list, - &request->list)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_FREE_BUFS, (unsigned long)request); -} - -typedef struct drm_ctx_priv_map32 { - unsigned int ctx_id; /**< Context requesting private mapping */ - u32 handle; /**< Handle of map */ -} drm_ctx_priv_map32_t; - -static int compat_drm_setsareactx(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_ctx_priv_map32_t req32; - struct drm_ctx_priv_map __user *request; - drm_ctx_priv_map32_t __user *argp = (void __user *)arg; - - if (copy_from_user(&req32, argp, sizeof(req32))) - return -EFAULT; - - request = compat_alloc_user_space(sizeof(*request)); - if (!access_ok(VERIFY_WRITE, request, sizeof(*request))) - return -EFAULT; - if (__put_user(req32.ctx_id, &request->ctx_id) - || __put_user((void *)(unsigned long)req32.handle, - &request->handle)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_SET_SAREA_CTX, (unsigned long)request); -} - -static int compat_drm_getsareactx(struct file *file, unsigned int cmd, - unsigned long arg) -{ - struct drm_ctx_priv_map __user *request; - drm_ctx_priv_map32_t __user *argp = (void __user *)arg; - int err; - unsigned int ctx_id; - void *handle; - - if (!access_ok(VERIFY_WRITE, argp, sizeof(*argp)) - || __get_user(ctx_id, &argp->ctx_id)) - return -EFAULT; - - request = compat_alloc_user_space(sizeof(*request)); - if (!access_ok(VERIFY_WRITE, request, sizeof(*request))) - return -EFAULT; - if (__put_user(ctx_id, &request->ctx_id)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request); - if (err) - return err; - - if (__get_user(handle, &request->handle) - || __put_user((unsigned long)handle, &argp->handle)) - return -EFAULT; - - return 0; -} - -typedef struct drm_ctx_res32 { - int count; - u32 contexts; -} drm_ctx_res32_t; - -static int compat_drm_resctx(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_ctx_res32_t __user *argp = (void __user *)arg; - drm_ctx_res32_t res32; - struct drm_ctx_res __user *res; - int err; - - if (copy_from_user(&res32, argp, sizeof(res32))) - return -EFAULT; - - res = compat_alloc_user_space(sizeof(*res)); - if (!access_ok(VERIFY_WRITE, res, sizeof(*res))) - return -EFAULT; - if (__put_user(res32.count, &res->count) - || __put_user((struct drm_ctx __user *) (unsigned long)res32.contexts, - &res->contexts)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_RES_CTX, (unsigned long)res); - if (err) - return err; - - if (__get_user(res32.count, &res->count) - || __put_user(res32.count, &argp->count)) - return -EFAULT; - - return 0; -} - -typedef struct drm_dma32 { - int context; /**< Context handle */ - int send_count; /**< Number of buffers to send */ - u32 send_indices; /**< List of handles to buffers */ - u32 send_sizes; /**< Lengths of data to send */ - enum drm_dma_flags flags; /**< Flags */ - int request_count; /**< Number of buffers requested */ - int request_size; /**< Desired size for buffers */ - u32 request_indices; /**< Buffer information */ - u32 request_sizes; - int granted_count; /**< Number of buffers granted */ -} drm_dma32_t; - -static int compat_drm_dma(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_dma32_t d32; - drm_dma32_t __user *argp = (void __user *)arg; - struct drm_dma __user *d; - int err; - - if (copy_from_user(&d32, argp, sizeof(d32))) - return -EFAULT; - - d = compat_alloc_user_space(sizeof(*d)); - if (!access_ok(VERIFY_WRITE, d, sizeof(*d))) - return -EFAULT; - - if (__put_user(d32.context, &d->context) - || __put_user(d32.send_count, &d->send_count) - || __put_user((int __user *)(unsigned long)d32.send_indices, - &d->send_indices) - || __put_user((int __user *)(unsigned long)d32.send_sizes, - &d->send_sizes) - || __put_user(d32.flags, &d->flags) - || __put_user(d32.request_count, &d->request_count) - || __put_user((int __user *)(unsigned long)d32.request_indices, - &d->request_indices) - || __put_user((int __user *)(unsigned long)d32.request_sizes, - &d->request_sizes)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_DMA, (unsigned long)d); - if (err) - return err; - - if (__get_user(d32.request_size, &d->request_size) - || __get_user(d32.granted_count, &d->granted_count) - || __put_user(d32.request_size, &argp->request_size) - || __put_user(d32.granted_count, &argp->granted_count)) - return -EFAULT; - - return 0; -} - -#if __OS_HAS_AGP -typedef struct drm_agp_mode32 { - u32 mode; /**< AGP mode */ -} drm_agp_mode32_t; - -static int compat_drm_agp_enable(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_agp_mode32_t __user *argp = (void __user *)arg; - drm_agp_mode32_t m32; - struct drm_agp_mode __user *mode; - - if (get_user(m32.mode, &argp->mode)) - return -EFAULT; - - mode = compat_alloc_user_space(sizeof(*mode)); - if (put_user(m32.mode, &mode->mode)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_AGP_ENABLE, (unsigned long)mode); -} - -typedef struct drm_agp_info32 { - int agp_version_major; - int agp_version_minor; - u32 mode; - u32 aperture_base; /* physical address */ - u32 aperture_size; /* bytes */ - u32 memory_allowed; /* bytes */ - u32 memory_used; - - /* PCI information */ - unsigned short id_vendor; - unsigned short id_device; -} drm_agp_info32_t; - -static int compat_drm_agp_info(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_agp_info32_t __user *argp = (void __user *)arg; - drm_agp_info32_t i32; - struct drm_agp_info __user *info; - int err; - - info = compat_alloc_user_space(sizeof(*info)); - if (!access_ok(VERIFY_WRITE, info, sizeof(*info))) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_AGP_INFO, (unsigned long)info); - if (err) - return err; - - if (__get_user(i32.agp_version_major, &info->agp_version_major) - || __get_user(i32.agp_version_minor, &info->agp_version_minor) - || __get_user(i32.mode, &info->mode) - || __get_user(i32.aperture_base, &info->aperture_base) - || __get_user(i32.aperture_size, &info->aperture_size) - || __get_user(i32.memory_allowed, &info->memory_allowed) - || __get_user(i32.memory_used, &info->memory_used) - || __get_user(i32.id_vendor, &info->id_vendor) - || __get_user(i32.id_device, &info->id_device)) - return -EFAULT; - - if (copy_to_user(argp, &i32, sizeof(i32))) - return -EFAULT; - - return 0; -} - -typedef struct drm_agp_buffer32 { - u32 size; /**< In bytes -- will round to page boundary */ - u32 handle; /**< Used for binding / unbinding */ - u32 type; /**< Type of memory to allocate */ - u32 physical; /**< Physical used by i810 */ -} drm_agp_buffer32_t; - -static int compat_drm_agp_alloc(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_agp_buffer32_t __user *argp = (void __user *)arg; - drm_agp_buffer32_t req32; - struct drm_agp_buffer __user *request; - int err; - - if (copy_from_user(&req32, argp, sizeof(req32))) - return -EFAULT; - - request = compat_alloc_user_space(sizeof(*request)); - if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) - || __put_user(req32.size, &request->size) - || __put_user(req32.type, &request->type)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_AGP_ALLOC, (unsigned long)request); - if (err) - return err; - - if (__get_user(req32.handle, &request->handle) - || __get_user(req32.physical, &request->physical) - || copy_to_user(argp, &req32, sizeof(req32))) { - drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_AGP_FREE, (unsigned long)request); - return -EFAULT; - } - - return 0; -} - -static int compat_drm_agp_free(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_agp_buffer32_t __user *argp = (void __user *)arg; - struct drm_agp_buffer __user *request; - u32 handle; - - request = compat_alloc_user_space(sizeof(*request)); - if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) - || get_user(handle, &argp->handle) - || __put_user(handle, &request->handle)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_AGP_FREE, (unsigned long)request); -} - -typedef struct drm_agp_binding32 { - u32 handle; /**< From drm_agp_buffer */ - u32 offset; /**< In bytes -- will round to page boundary */ -} drm_agp_binding32_t; - -static int compat_drm_agp_bind(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_agp_binding32_t __user *argp = (void __user *)arg; - drm_agp_binding32_t req32; - struct drm_agp_binding __user *request; - - if (copy_from_user(&req32, argp, sizeof(req32))) - return -EFAULT; - - request = compat_alloc_user_space(sizeof(*request)); - if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) - || __put_user(req32.handle, &request->handle) - || __put_user(req32.offset, &request->offset)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_AGP_BIND, (unsigned long)request); -} - -static int compat_drm_agp_unbind(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_agp_binding32_t __user *argp = (void __user *)arg; - struct drm_agp_binding __user *request; - u32 handle; - - request = compat_alloc_user_space(sizeof(*request)); - if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) - || get_user(handle, &argp->handle) - || __put_user(handle, &request->handle)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_AGP_UNBIND, (unsigned long)request); -} -#endif /* __OS_HAS_AGP */ - -typedef struct drm_scatter_gather32 { - u32 size; /**< In bytes -- will round to page boundary */ - u32 handle; /**< Used for mapping / unmapping */ -} drm_scatter_gather32_t; - -static int compat_drm_sg_alloc(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_scatter_gather32_t __user *argp = (void __user *)arg; - struct drm_scatter_gather __user *request; - int err; - unsigned long x; - - request = compat_alloc_user_space(sizeof(*request)); - if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) - || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)) - || __get_user(x, &argp->size) - || __put_user(x, &request->size)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_SG_ALLOC, (unsigned long)request); - if (err) - return err; - - /* XXX not sure about the handle conversion here... */ - if (__get_user(x, &request->handle) - || __put_user(x >> PAGE_SHIFT, &argp->handle)) - return -EFAULT; - - return 0; -} - -static int compat_drm_sg_free(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_scatter_gather32_t __user *argp = (void __user *)arg; - struct drm_scatter_gather __user *request; - unsigned long x; - - request = compat_alloc_user_space(sizeof(*request)); - if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) - || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)) - || __get_user(x, &argp->handle) - || __put_user(x << PAGE_SHIFT, &request->handle)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_SG_FREE, (unsigned long)request); -} - -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 __user *request; - int err; - - if (copy_from_user(&req32, argp, sizeof(req32))) - return -EFAULT; - - request = compat_alloc_user_space(sizeof(*request)); - if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) - || __put_user(req32.request.type, &request->request.type) - || __put_user(req32.request.sequence, &request->request.sequence) - || __put_user(req32.request.signal, &request->request.signal)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_WAIT_VBLANK, (unsigned long)request); - if (err) - return err; - - if (__get_user(req32.reply.type, &request->reply.type) - || __get_user(req32.reply.sequence, &request->reply.sequence) - || __get_user(req32.reply.tval_sec, &request->reply.tval_sec) - || __get_user(req32.reply.tval_usec, &request->reply.tval_usec)) - return -EFAULT; - - if (copy_to_user(argp, &req32, sizeof(req32))) - return -EFAULT; - - return 0; -} - -drm_ioctl_compat_t *drm_compat_ioctls[] = { - [DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version, - [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique, - [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap, - [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT32)] = compat_drm_getclient, - [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS32)] = compat_drm_getstats, - [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE32)] = compat_drm_setunique, - [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP32)] = compat_drm_addmap, - [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS32)] = compat_drm_addbufs, - [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)] = compat_drm_markbufs, - [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS32)] = compat_drm_infobufs, - [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)] = compat_drm_mapbufs, - [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS32)] = compat_drm_freebufs, - [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)] = compat_drm_rmmap, - [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX32)] = compat_drm_setsareactx, - [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX32)] = compat_drm_getsareactx, - [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)] = compat_drm_resctx, - [DRM_IOCTL_NR(DRM_IOCTL_DMA32)] = compat_drm_dma, -#if __OS_HAS_AGP - [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)] = compat_drm_agp_enable, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO32)] = compat_drm_agp_info, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC32)] = compat_drm_agp_alloc, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE32)] = compat_drm_agp_free, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND32)] = compat_drm_agp_bind, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND32)] = compat_drm_agp_unbind, -#endif - [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC32)] = compat_drm_sg_alloc, - [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE32)] = compat_drm_sg_free, - [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)] = compat_drm_wait_vblank, -}; - -/** - * Called whenever a 32-bit process running under a 64-bit kernel - * performs an ioctl on /dev/drm. - * - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument. - * \return zero on success or negative number on failure. - */ -long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) -{ - unsigned int nr = DRM_IOCTL_NR(cmd); - 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->f_dentry->d_inode, filp, cmd, arg); - - fn = drm_compat_ioctls[nr]; - - lock_kernel(); /* XXX for now */ - if (fn != NULL) - ret = (*fn) (filp, cmd, arg); - else - ret = drm_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg); - unlock_kernel(); - - return ret; -} - -EXPORT_SYMBOL(drm_compat_ioctl); |