626 lines
17 KiB
C
626 lines
17 KiB
C
/* $Id: ioctl32.c,v 1.5 2002/10/18 00:21:43 varenet Exp $
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* ioctl32.c: Conversion between 32bit and 64bit native ioctls.
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*
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* Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
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* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
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*
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* These routines maintain argument size conversion between 32bit and 64bit
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* ioctls.
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*/
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#include <linux/syscalls.h>
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#define INCLUDES
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#include "compat_ioctl.c"
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#include <asm/perf.h>
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#include <asm/ioctls.h>
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#define CODE
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#include "compat_ioctl.c"
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/* Use this to get at 32-bit user passed pointers.
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See sys_sparc32.c for description about these. */
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#define A(__x) ((unsigned long)(__x))
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/* The same for use with copy_from_user() and copy_to_user(). */
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#define B(__x) ((void *)(unsigned long)(__x))
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#if defined(CONFIG_DRM) || defined(CONFIG_DRM_MODULE)
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/* This really belongs in include/linux/drm.h -DaveM */
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#include "../../../drivers/char/drm/drm.h"
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typedef struct drm32_version {
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int version_major; /* Major version */
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int version_minor; /* Minor version */
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int version_patchlevel;/* Patch level */
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int name_len; /* Length of name buffer */
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u32 name; /* Name of driver */
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int date_len; /* Length of date buffer */
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u32 date; /* User-space buffer to hold date */
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int desc_len; /* Length of desc buffer */
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u32 desc; /* User-space buffer to hold desc */
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} drm32_version_t;
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#define DRM32_IOCTL_VERSION DRM_IOWR(0x00, drm32_version_t)
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static int drm32_version(unsigned int fd, unsigned int cmd, unsigned long arg)
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{
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drm32_version_t *uversion = (drm32_version_t *)arg;
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char *name_ptr, *date_ptr, *desc_ptr;
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u32 tmp1, tmp2, tmp3;
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drm_version_t kversion;
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mm_segment_t old_fs;
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int ret;
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memset(&kversion, 0, sizeof(kversion));
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if (get_user(kversion.name_len, &uversion->name_len) ||
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get_user(kversion.date_len, &uversion->date_len) ||
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get_user(kversion.desc_len, &uversion->desc_len) ||
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get_user(tmp1, &uversion->name) ||
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get_user(tmp2, &uversion->date) ||
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get_user(tmp3, &uversion->desc))
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return -EFAULT;
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name_ptr = (char *) A(tmp1);
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date_ptr = (char *) A(tmp2);
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desc_ptr = (char *) A(tmp3);
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ret = -ENOMEM;
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if (kversion.name_len && name_ptr) {
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kversion.name = kmalloc(kversion.name_len, GFP_KERNEL);
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if (!kversion.name)
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goto out;
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}
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if (kversion.date_len && date_ptr) {
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kversion.date = kmalloc(kversion.date_len, GFP_KERNEL);
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if (!kversion.date)
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goto out;
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}
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if (kversion.desc_len && desc_ptr) {
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kversion.desc = kmalloc(kversion.desc_len, GFP_KERNEL);
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if (!kversion.desc)
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goto out;
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}
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old_fs = get_fs();
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set_fs(KERNEL_DS);
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ret = sys_ioctl (fd, DRM_IOCTL_VERSION, (unsigned long)&kversion);
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set_fs(old_fs);
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if (!ret) {
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if ((kversion.name &&
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copy_to_user(name_ptr, kversion.name, kversion.name_len)) ||
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(kversion.date &&
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copy_to_user(date_ptr, kversion.date, kversion.date_len)) ||
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(kversion.desc &&
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copy_to_user(desc_ptr, kversion.desc, kversion.desc_len)))
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ret = -EFAULT;
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if (put_user(kversion.version_major, &uversion->version_major) ||
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put_user(kversion.version_minor, &uversion->version_minor) ||
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put_user(kversion.version_patchlevel, &uversion->version_patchlevel) ||
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put_user(kversion.name_len, &uversion->name_len) ||
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put_user(kversion.date_len, &uversion->date_len) ||
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put_user(kversion.desc_len, &uversion->desc_len))
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ret = -EFAULT;
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}
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out:
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if (kversion.name)
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kfree(kversion.name);
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if (kversion.date)
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kfree(kversion.date);
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if (kversion.desc)
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kfree(kversion.desc);
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return ret;
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}
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typedef struct drm32_unique {
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int unique_len; /* Length of unique */
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u32 unique; /* Unique name for driver instantiation */
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} drm32_unique_t;
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#define DRM32_IOCTL_GET_UNIQUE DRM_IOWR(0x01, drm32_unique_t)
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#define DRM32_IOCTL_SET_UNIQUE DRM_IOW( 0x10, drm32_unique_t)
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static int drm32_getsetunique(unsigned int fd, unsigned int cmd, unsigned long arg)
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{
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drm32_unique_t *uarg = (drm32_unique_t *)arg;
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drm_unique_t karg;
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mm_segment_t old_fs;
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char *uptr;
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u32 tmp;
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int ret;
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if (get_user(karg.unique_len, &uarg->unique_len))
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return -EFAULT;
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karg.unique = NULL;
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if (get_user(tmp, &uarg->unique))
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return -EFAULT;
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uptr = (char *) A(tmp);
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if (uptr) {
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karg.unique = kmalloc(karg.unique_len, GFP_KERNEL);
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if (!karg.unique)
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return -ENOMEM;
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if (cmd == DRM32_IOCTL_SET_UNIQUE &&
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copy_from_user(karg.unique, uptr, karg.unique_len)) {
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kfree(karg.unique);
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return -EFAULT;
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}
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}
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old_fs = get_fs();
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set_fs(KERNEL_DS);
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if (cmd == DRM32_IOCTL_GET_UNIQUE)
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ret = sys_ioctl (fd, DRM_IOCTL_GET_UNIQUE, (unsigned long)&karg);
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else
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ret = sys_ioctl (fd, DRM_IOCTL_SET_UNIQUE, (unsigned long)&karg);
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set_fs(old_fs);
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if (!ret) {
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if (cmd == DRM32_IOCTL_GET_UNIQUE &&
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uptr != NULL &&
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copy_to_user(uptr, karg.unique, karg.unique_len))
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ret = -EFAULT;
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if (put_user(karg.unique_len, &uarg->unique_len))
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ret = -EFAULT;
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}
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if (karg.unique != NULL)
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kfree(karg.unique);
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return ret;
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}
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typedef struct drm32_map {
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u32 offset; /* Requested physical address (0 for SAREA)*/
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u32 size; /* Requested physical size (bytes) */
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drm_map_type_t type; /* Type of memory to map */
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drm_map_flags_t flags; /* Flags */
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u32 handle; /* User-space: "Handle" to pass to mmap */
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/* Kernel-space: kernel-virtual address */
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int mtrr; /* MTRR slot used */
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/* Private data */
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} drm32_map_t;
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#define DRM32_IOCTL_ADD_MAP DRM_IOWR(0x15, drm32_map_t)
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static int drm32_addmap(unsigned int fd, unsigned int cmd, unsigned long arg)
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{
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drm32_map_t *uarg = (drm32_map_t *) arg;
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drm_map_t karg;
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mm_segment_t old_fs;
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u32 tmp;
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int ret;
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ret = get_user(karg.offset, &uarg->offset);
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ret |= get_user(karg.size, &uarg->size);
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ret |= get_user(karg.type, &uarg->type);
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ret |= get_user(karg.flags, &uarg->flags);
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ret |= get_user(tmp, &uarg->handle);
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ret |= get_user(karg.mtrr, &uarg->mtrr);
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if (ret)
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return -EFAULT;
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karg.handle = (void *) A(tmp);
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old_fs = get_fs();
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set_fs(KERNEL_DS);
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ret = sys_ioctl(fd, DRM_IOCTL_ADD_MAP, (unsigned long) &karg);
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set_fs(old_fs);
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if (!ret) {
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ret = put_user(karg.offset, &uarg->offset);
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ret |= put_user(karg.size, &uarg->size);
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ret |= put_user(karg.type, &uarg->type);
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ret |= put_user(karg.flags, &uarg->flags);
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tmp = (u32) (long)karg.handle;
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ret |= put_user(tmp, &uarg->handle);
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ret |= put_user(karg.mtrr, &uarg->mtrr);
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if (ret)
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ret = -EFAULT;
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}
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return ret;
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}
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typedef struct drm32_buf_info {
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int count; /* Entries in list */
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u32 list; /* (drm_buf_desc_t *) */
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} drm32_buf_info_t;
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#define DRM32_IOCTL_INFO_BUFS DRM_IOWR(0x18, drm32_buf_info_t)
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static int drm32_info_bufs(unsigned int fd, unsigned int cmd, unsigned long arg)
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{
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drm32_buf_info_t *uarg = (drm32_buf_info_t *)arg;
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drm_buf_desc_t *ulist;
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drm_buf_info_t karg;
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mm_segment_t old_fs;
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int orig_count, ret;
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u32 tmp;
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if (get_user(karg.count, &uarg->count) ||
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get_user(tmp, &uarg->list))
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return -EFAULT;
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ulist = (drm_buf_desc_t *) A(tmp);
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orig_count = karg.count;
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karg.list = kmalloc(karg.count * sizeof(drm_buf_desc_t), GFP_KERNEL);
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if (!karg.list)
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return -EFAULT;
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old_fs = get_fs();
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set_fs(KERNEL_DS);
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ret = sys_ioctl(fd, DRM_IOCTL_INFO_BUFS, (unsigned long) &karg);
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set_fs(old_fs);
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if (!ret) {
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if (karg.count <= orig_count &&
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(copy_to_user(ulist, karg.list,
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karg.count * sizeof(drm_buf_desc_t))))
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ret = -EFAULT;
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if (put_user(karg.count, &uarg->count))
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ret = -EFAULT;
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}
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kfree(karg.list);
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return ret;
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}
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typedef struct drm32_buf_free {
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int count;
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u32 list; /* (int *) */
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} drm32_buf_free_t;
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#define DRM32_IOCTL_FREE_BUFS DRM_IOW( 0x1a, drm32_buf_free_t)
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static int drm32_free_bufs(unsigned int fd, unsigned int cmd, unsigned long arg)
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{
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drm32_buf_free_t *uarg = (drm32_buf_free_t *)arg;
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drm_buf_free_t karg;
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mm_segment_t old_fs;
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int *ulist;
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int ret;
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u32 tmp;
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if (get_user(karg.count, &uarg->count) ||
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get_user(tmp, &uarg->list))
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return -EFAULT;
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ulist = (int *) A(tmp);
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karg.list = kmalloc(karg.count * sizeof(int), GFP_KERNEL);
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if (!karg.list)
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return -ENOMEM;
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ret = -EFAULT;
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if (copy_from_user(karg.list, ulist, (karg.count * sizeof(int))))
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goto out;
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old_fs = get_fs();
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set_fs(KERNEL_DS);
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ret = sys_ioctl(fd, DRM_IOCTL_FREE_BUFS, (unsigned long) &karg);
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set_fs(old_fs);
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out:
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kfree(karg.list);
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return ret;
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}
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typedef struct drm32_buf_pub {
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int idx; /* Index into master buflist */
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int total; /* Buffer size */
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int used; /* Amount of buffer in use (for DMA) */
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u32 address; /* Address of buffer (void *) */
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} drm32_buf_pub_t;
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typedef struct drm32_buf_map {
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int count; /* Length of buflist */
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u32 virtual; /* Mmaped area in user-virtual (void *) */
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u32 list; /* Buffer information (drm_buf_pub_t *) */
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} drm32_buf_map_t;
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#define DRM32_IOCTL_MAP_BUFS DRM_IOWR(0x19, drm32_buf_map_t)
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static int drm32_map_bufs(unsigned int fd, unsigned int cmd, unsigned long arg)
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{
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drm32_buf_map_t *uarg = (drm32_buf_map_t *)arg;
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drm32_buf_pub_t *ulist;
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drm_buf_map_t karg;
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mm_segment_t old_fs;
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int orig_count, ret, i;
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u32 tmp1, tmp2;
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if (get_user(karg.count, &uarg->count) ||
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get_user(tmp1, &uarg->virtual) ||
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get_user(tmp2, &uarg->list))
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return -EFAULT;
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karg.virtual = (void *) A(tmp1);
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ulist = (drm32_buf_pub_t *) A(tmp2);
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orig_count = karg.count;
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karg.list = kmalloc(karg.count * sizeof(drm_buf_pub_t), GFP_KERNEL);
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if (!karg.list)
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return -ENOMEM;
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ret = -EFAULT;
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for (i = 0; i < karg.count; i++) {
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if (get_user(karg.list[i].idx, &ulist[i].idx) ||
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get_user(karg.list[i].total, &ulist[i].total) ||
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get_user(karg.list[i].used, &ulist[i].used) ||
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get_user(tmp1, &ulist[i].address))
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goto out;
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karg.list[i].address = (void *) A(tmp1);
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}
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old_fs = get_fs();
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set_fs(KERNEL_DS);
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ret = sys_ioctl(fd, DRM_IOCTL_MAP_BUFS, (unsigned long) &karg);
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set_fs(old_fs);
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if (!ret) {
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for (i = 0; i < orig_count; i++) {
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tmp1 = (u32) (long) karg.list[i].address;
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if (put_user(karg.list[i].idx, &ulist[i].idx) ||
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put_user(karg.list[i].total, &ulist[i].total) ||
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put_user(karg.list[i].used, &ulist[i].used) ||
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put_user(tmp1, &ulist[i].address)) {
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ret = -EFAULT;
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goto out;
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}
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}
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if (put_user(karg.count, &uarg->count))
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ret = -EFAULT;
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}
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out:
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kfree(karg.list);
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return ret;
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}
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typedef struct drm32_dma {
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/* Indices here refer to the offset into
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buflist in drm_buf_get_t. */
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int context; /* Context handle */
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int send_count; /* Number of buffers to send */
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u32 send_indices; /* List of handles to buffers (int *) */
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u32 send_sizes; /* Lengths of data to send (int *) */
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drm_dma_flags_t flags; /* Flags */
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int request_count; /* Number of buffers requested */
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int request_size; /* Desired size for buffers */
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u32 request_indices; /* Buffer information (int *) */
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u32 request_sizes; /* (int *) */
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int granted_count; /* Number of buffers granted */
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} drm32_dma_t;
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#define DRM32_IOCTL_DMA DRM_IOWR(0x29, drm32_dma_t)
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/* RED PEN The DRM layer blindly dereferences the send/request
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* indice/size arrays even though they are userland
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* pointers. -DaveM
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*/
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static int drm32_dma(unsigned int fd, unsigned int cmd, unsigned long arg)
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{
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drm32_dma_t *uarg = (drm32_dma_t *) arg;
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int *u_si, *u_ss, *u_ri, *u_rs;
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drm_dma_t karg;
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mm_segment_t old_fs;
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int ret;
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u32 tmp1, tmp2, tmp3, tmp4;
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karg.send_indices = karg.send_sizes = NULL;
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karg.request_indices = karg.request_sizes = NULL;
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if (get_user(karg.context, &uarg->context) ||
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get_user(karg.send_count, &uarg->send_count) ||
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get_user(tmp1, &uarg->send_indices) ||
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get_user(tmp2, &uarg->send_sizes) ||
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get_user(karg.flags, &uarg->flags) ||
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get_user(karg.request_count, &uarg->request_count) ||
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get_user(karg.request_size, &uarg->request_size) ||
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get_user(tmp3, &uarg->request_indices) ||
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get_user(tmp4, &uarg->request_sizes) ||
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get_user(karg.granted_count, &uarg->granted_count))
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return -EFAULT;
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u_si = (int *) A(tmp1);
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u_ss = (int *) A(tmp2);
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u_ri = (int *) A(tmp3);
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u_rs = (int *) A(tmp4);
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if (karg.send_count) {
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karg.send_indices = kmalloc(karg.send_count * sizeof(int), GFP_KERNEL);
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karg.send_sizes = kmalloc(karg.send_count * sizeof(int), GFP_KERNEL);
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ret = -ENOMEM;
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if (!karg.send_indices || !karg.send_sizes)
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goto out;
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ret = -EFAULT;
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if (copy_from_user(karg.send_indices, u_si,
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(karg.send_count * sizeof(int))) ||
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copy_from_user(karg.send_sizes, u_ss,
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(karg.send_count * sizeof(int))))
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goto out;
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}
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if (karg.request_count) {
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karg.request_indices = kmalloc(karg.request_count * sizeof(int), GFP_KERNEL);
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karg.request_sizes = kmalloc(karg.request_count * sizeof(int), GFP_KERNEL);
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ret = -ENOMEM;
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if (!karg.request_indices || !karg.request_sizes)
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goto out;
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ret = -EFAULT;
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if (copy_from_user(karg.request_indices, u_ri,
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(karg.request_count * sizeof(int))) ||
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copy_from_user(karg.request_sizes, u_rs,
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(karg.request_count * sizeof(int))))
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goto out;
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}
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old_fs = get_fs();
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set_fs(KERNEL_DS);
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ret = sys_ioctl(fd, DRM_IOCTL_DMA, (unsigned long) &karg);
|
|
set_fs(old_fs);
|
|
|
|
if (!ret) {
|
|
if (put_user(karg.context, &uarg->context) ||
|
|
put_user(karg.send_count, &uarg->send_count) ||
|
|
put_user(karg.flags, &uarg->flags) ||
|
|
put_user(karg.request_count, &uarg->request_count) ||
|
|
put_user(karg.request_size, &uarg->request_size) ||
|
|
put_user(karg.granted_count, &uarg->granted_count))
|
|
ret = -EFAULT;
|
|
|
|
if (karg.send_count) {
|
|
if (copy_to_user(u_si, karg.send_indices,
|
|
(karg.send_count * sizeof(int))) ||
|
|
copy_to_user(u_ss, karg.send_sizes,
|
|
(karg.send_count * sizeof(int))))
|
|
ret = -EFAULT;
|
|
}
|
|
if (karg.request_count) {
|
|
if (copy_to_user(u_ri, karg.request_indices,
|
|
(karg.request_count * sizeof(int))) ||
|
|
copy_to_user(u_rs, karg.request_sizes,
|
|
(karg.request_count * sizeof(int))))
|
|
ret = -EFAULT;
|
|
}
|
|
}
|
|
|
|
out:
|
|
if (karg.send_indices)
|
|
kfree(karg.send_indices);
|
|
if (karg.send_sizes)
|
|
kfree(karg.send_sizes);
|
|
if (karg.request_indices)
|
|
kfree(karg.request_indices);
|
|
if (karg.request_sizes)
|
|
kfree(karg.request_sizes);
|
|
|
|
return ret;
|
|
}
|
|
|
|
typedef struct drm32_ctx_res {
|
|
int count;
|
|
u32 contexts; /* (drm_ctx_t *) */
|
|
} drm32_ctx_res_t;
|
|
#define DRM32_IOCTL_RES_CTX DRM_IOWR(0x26, drm32_ctx_res_t)
|
|
|
|
static int drm32_res_ctx(unsigned int fd, unsigned int cmd, unsigned long arg)
|
|
{
|
|
drm32_ctx_res_t *uarg = (drm32_ctx_res_t *) arg;
|
|
drm_ctx_t *ulist;
|
|
drm_ctx_res_t karg;
|
|
mm_segment_t old_fs;
|
|
int orig_count, ret;
|
|
u32 tmp;
|
|
|
|
karg.contexts = NULL;
|
|
if (get_user(karg.count, &uarg->count) ||
|
|
get_user(tmp, &uarg->contexts))
|
|
return -EFAULT;
|
|
|
|
ulist = (drm_ctx_t *) A(tmp);
|
|
|
|
orig_count = karg.count;
|
|
if (karg.count && ulist) {
|
|
karg.contexts = kmalloc((karg.count * sizeof(drm_ctx_t)), GFP_KERNEL);
|
|
if (!karg.contexts)
|
|
return -ENOMEM;
|
|
if (copy_from_user(karg.contexts, ulist,
|
|
(karg.count * sizeof(drm_ctx_t)))) {
|
|
kfree(karg.contexts);
|
|
return -EFAULT;
|
|
}
|
|
}
|
|
|
|
old_fs = get_fs();
|
|
set_fs(KERNEL_DS);
|
|
ret = sys_ioctl(fd, DRM_IOCTL_RES_CTX, (unsigned long) &karg);
|
|
set_fs(old_fs);
|
|
|
|
if (!ret) {
|
|
if (orig_count) {
|
|
if (copy_to_user(ulist, karg.contexts,
|
|
(orig_count * sizeof(drm_ctx_t))))
|
|
ret = -EFAULT;
|
|
}
|
|
if (put_user(karg.count, &uarg->count))
|
|
ret = -EFAULT;
|
|
}
|
|
|
|
if (karg.contexts)
|
|
kfree(karg.contexts);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif
|
|
|
|
#define HANDLE_IOCTL(cmd, handler) { cmd, (ioctl_trans_handler_t)handler, NULL },
|
|
#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL(cmd, sys_ioctl)
|
|
|
|
#define IOCTL_TABLE_START struct ioctl_trans ioctl_start[] = {
|
|
#define IOCTL_TABLE_END };
|
|
|
|
IOCTL_TABLE_START
|
|
#include <linux/compat_ioctl.h>
|
|
|
|
#define DECLARES
|
|
#include "compat_ioctl.c"
|
|
|
|
/* Might be moved to compat_ioctl.h with some ifdefs... */
|
|
COMPATIBLE_IOCTL(TIOCSTART)
|
|
COMPATIBLE_IOCTL(TIOCSTOP)
|
|
COMPATIBLE_IOCTL(TIOCSLTC)
|
|
|
|
/* PA-specific ioctls */
|
|
COMPATIBLE_IOCTL(PA_PERF_ON)
|
|
COMPATIBLE_IOCTL(PA_PERF_OFF)
|
|
COMPATIBLE_IOCTL(PA_PERF_VERSION)
|
|
|
|
/* And these ioctls need translation */
|
|
HANDLE_IOCTL(SIOCGPPPSTATS, dev_ifsioc)
|
|
HANDLE_IOCTL(SIOCGPPPCSTATS, dev_ifsioc)
|
|
HANDLE_IOCTL(SIOCGPPPVER, dev_ifsioc)
|
|
|
|
#if defined(CONFIG_GEN_RTC)
|
|
COMPATIBLE_IOCTL(RTC_AIE_ON)
|
|
COMPATIBLE_IOCTL(RTC_AIE_OFF)
|
|
COMPATIBLE_IOCTL(RTC_UIE_ON)
|
|
COMPATIBLE_IOCTL(RTC_UIE_OFF)
|
|
COMPATIBLE_IOCTL(RTC_PIE_ON)
|
|
COMPATIBLE_IOCTL(RTC_PIE_OFF)
|
|
COMPATIBLE_IOCTL(RTC_WIE_ON)
|
|
COMPATIBLE_IOCTL(RTC_WIE_OFF)
|
|
COMPATIBLE_IOCTL(RTC_ALM_SET) /* struct rtc_time only has ints */
|
|
COMPATIBLE_IOCTL(RTC_ALM_READ) /* struct rtc_time only has ints */
|
|
COMPATIBLE_IOCTL(RTC_RD_TIME) /* struct rtc_time only has ints */
|
|
COMPATIBLE_IOCTL(RTC_SET_TIME) /* struct rtc_time only has ints */
|
|
HANDLE_IOCTL(RTC_IRQP_READ, w_long)
|
|
COMPATIBLE_IOCTL(RTC_IRQP_SET)
|
|
HANDLE_IOCTL(RTC_EPOCH_READ, w_long)
|
|
COMPATIBLE_IOCTL(RTC_EPOCH_SET)
|
|
#endif
|
|
|
|
#if defined(CONFIG_DRM) || defined(CONFIG_DRM_MODULE)
|
|
HANDLE_IOCTL(DRM32_IOCTL_VERSION, drm32_version);
|
|
HANDLE_IOCTL(DRM32_IOCTL_GET_UNIQUE, drm32_getsetunique);
|
|
HANDLE_IOCTL(DRM32_IOCTL_SET_UNIQUE, drm32_getsetunique);
|
|
HANDLE_IOCTL(DRM32_IOCTL_ADD_MAP, drm32_addmap);
|
|
HANDLE_IOCTL(DRM32_IOCTL_INFO_BUFS, drm32_info_bufs);
|
|
HANDLE_IOCTL(DRM32_IOCTL_FREE_BUFS, drm32_free_bufs);
|
|
HANDLE_IOCTL(DRM32_IOCTL_MAP_BUFS, drm32_map_bufs);
|
|
HANDLE_IOCTL(DRM32_IOCTL_DMA, drm32_dma);
|
|
HANDLE_IOCTL(DRM32_IOCTL_RES_CTX, drm32_res_ctx);
|
|
#endif /* DRM */
|
|
IOCTL_TABLE_END
|
|
|
|
int ioctl_table_size = ARRAY_SIZE(ioctl_start);
|