ioctl32.c

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	return sys_ioctl(fd, DRM_IOCTL_FREE_BUFS, (unsigned long)p);
}

typedef struct drm32_buf_pub {
	int		  idx;	       /* Index into master buflist	     */
	int		  total;       /* Buffer size			     */
	int		  used;	       /* Amount of buffer in use (for DMA)  */
	u32		  address;     /* Address of buffer (void *)	     */
} drm32_buf_pub_t;

typedef struct drm32_buf_map {
	int	      count;	/* Length of buflist			    */
	u32	      virtual;	/* Mmaped area in user-virtual (void *)	    */
	u32 	      list;	/* Buffer information (drm_buf_pub_t *)	    */
} drm32_buf_map_t;
#define DRM32_IOCTL_MAP_BUFS   DRM_IOWR(0x19, drm32_buf_map_t)

static int drm32_map_bufs(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	drm32_buf_map_t __user *uarg = (drm32_buf_map_t __user *)arg;
	drm32_buf_pub_t __user *ulist;
	drm_buf_map_t __user *arg64;
	drm_buf_pub_t __user *list;
	int orig_count, ret, i;
	int n;
	compat_uptr_t addr;

	if (get_user(orig_count, &uarg->count))
		return -EFAULT;

	arg64 = compat_alloc_user_space(sizeof(drm_buf_map_t) +
				(size_t)orig_count * sizeof(drm_buf_pub_t));
	list = (void __user *)(arg64 + 1);

	if (put_user(orig_count, &arg64->count) ||
	    put_user(list, &arg64->list) ||
	    get_user(addr, &uarg->virtual) ||
	    put_user(compat_ptr(addr), &arg64->virtual) ||
	    get_user(addr, &uarg->list))
		return -EFAULT;

	ulist = compat_ptr(addr);

	for (i = 0; i < orig_count; i++) {
		if (get_user(n, &ulist[i].idx) ||
		    put_user(n, &list[i].idx) ||
		    get_user(n, &ulist[i].total) ||
		    put_user(n, &list[i].total) ||
		    get_user(n, &ulist[i].used) ||
		    put_user(n, &list[i].used) ||
		    get_user(addr, &ulist[i].address) ||
		    put_user(compat_ptr(addr), &list[i].address))
			return -EFAULT;
	}

	ret = sys_ioctl(fd, DRM_IOCTL_MAP_BUFS, (unsigned long) arg64);
	if (ret)
		return ret;

	for (i = 0; i < orig_count; i++) {
		void __user *p;
		if (get_user(n, &list[i].idx) ||
		    put_user(n, &ulist[i].idx) ||
		    get_user(n, &list[i].total) ||
		    put_user(n, &ulist[i].total) ||
		    get_user(n, &list[i].used) ||
		    put_user(n, &ulist[i].used) ||
		    get_user(p, &list[i].address) ||
		    put_user((unsigned long)p, &ulist[i].address))
			return -EFAULT;
	}

	if (get_user(n, &arg64->count) || put_user(n, &uarg->count))
		return -EFAULT;

	return 0;
}

typedef struct drm32_dma {
				/* Indices here refer to the offset into
				   buflist in drm_buf_get_t.  */
	int		context;	  /* Context handle		    */
	int		send_count;	  /* Number of buffers to send	    */
	u32		send_indices;	  /* List of handles to buffers (int *) */
	u32		send_sizes;	  /* Lengths of data to send (int *) */
	drm_dma_flags_t flags;		  /* Flags			    */
	int		request_count;	  /* Number of buffers requested    */
	int		request_size;	  /* Desired size for buffers	    */
	u32		request_indices;  /* Buffer information (int *)	    */
	u32		request_sizes;    /* (int *) */
	int		granted_count;	  /* Number of buffers granted	    */
} drm32_dma_t;
#define DRM32_IOCTL_DMA	     DRM_IOWR(0x29, drm32_dma_t)

/* RED PEN	The DRM layer blindly dereferences the send/request
 * 		index/size arrays even though they are userland
 * 		pointers.  -DaveM
 */
static int drm32_dma(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	drm32_dma_t __user *uarg = (drm32_dma_t __user *) arg;
	drm_dma_t __user *p = compat_alloc_user_space(sizeof(*p));
	compat_uptr_t addr;
	int ret;

	if (copy_in_user(p, uarg, 2 * sizeof(int)) ||
	    get_user(addr, &uarg->send_indices) ||
	    put_user(compat_ptr(addr), &p->send_indices) ||
	    get_user(addr, &uarg->send_sizes) ||
	    put_user(compat_ptr(addr), &p->send_sizes) ||
	    copy_in_user(&p->flags, &uarg->flags, sizeof(drm_dma_flags_t)) ||
	    copy_in_user(&p->request_count, &uarg->request_count, sizeof(int))||
	    copy_in_user(&p->request_size, &uarg->request_size, sizeof(int)) ||
	    get_user(addr, &uarg->request_indices) ||
	    put_user(compat_ptr(addr), &p->request_indices) ||
	    get_user(addr, &uarg->request_sizes) ||
	    put_user(compat_ptr(addr), &p->request_sizes) ||
	    copy_in_user(&p->granted_count, &uarg->granted_count, sizeof(int)))
		return -EFAULT;

	ret = sys_ioctl(fd, DRM_IOCTL_DMA, (unsigned long)p);
	if (ret)
		return ret;

	if (copy_in_user(uarg, p, 2 * sizeof(int)) ||
	    copy_in_user(&uarg->flags, &p->flags, sizeof(drm_dma_flags_t)) ||
	    copy_in_user(&uarg->request_count, &p->request_count, sizeof(int))||
	    copy_in_user(&uarg->request_size, &p->request_size, sizeof(int)) ||
	    copy_in_user(&uarg->granted_count, &p->granted_count, sizeof(int)))
		return -EFAULT;

	return 0;
}

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 __user *uarg = (drm32_ctx_res_t __user *) arg;
	drm_ctx_res_t __user *p = compat_alloc_user_space(sizeof(*p));
	compat_uptr_t addr;
	int ret;

	if (copy_in_user(p, uarg, sizeof(int)) ||
	    get_user(addr, &uarg->contexts) ||
	    put_user(compat_ptr(addr), &p->contexts))
		return -EFAULT;

	ret = sys_ioctl(fd, DRM_IOCTL_RES_CTX, (unsigned long)p);
	if (ret)
		return ret;

	if (copy_in_user(uarg, p, sizeof(int)))
		return -EFAULT;

	return 0;
}

#endif

typedef int (* ioctl32_handler_t)(unsigned int, unsigned int, unsigned long, struct file *);

#define COMPATIBLE_IOCTL(cmd)		HANDLE_IOCTL((cmd),sys_ioctl)
#define HANDLE_IOCTL(cmd,handler)	{ (cmd), (ioctl32_handler_t)(handler), NULL },
#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"
COMPATIBLE_IOCTL(TCSBRKP)
COMPATIBLE_IOCTL(TIOCSTART)
COMPATIBLE_IOCTL(TIOCSTOP)
COMPATIBLE_IOCTL(TIOCSLTC)
COMPATIBLE_IOCTL(FBIOGTYPE)
COMPATIBLE_IOCTL(FBIOSATTR)
COMPATIBLE_IOCTL(FBIOGATTR)
COMPATIBLE_IOCTL(FBIOSVIDEO)
COMPATIBLE_IOCTL(FBIOGVIDEO)
COMPATIBLE_IOCTL(FBIOGCURSOR32)  /* This is not implemented yet. Later it should be converted... */
COMPATIBLE_IOCTL(FBIOSCURPOS)
COMPATIBLE_IOCTL(FBIOGCURPOS)
COMPATIBLE_IOCTL(FBIOGCURMAX)
/* Little k */
COMPATIBLE_IOCTL(KIOCTYPE)
COMPATIBLE_IOCTL(KIOCLAYOUT)
COMPATIBLE_IOCTL(KIOCGTRANS)
COMPATIBLE_IOCTL(KIOCTRANS)
COMPATIBLE_IOCTL(KIOCCMD)
COMPATIBLE_IOCTL(KIOCSDIRECT)
COMPATIBLE_IOCTL(KIOCSLED)
COMPATIBLE_IOCTL(KIOCGLED)
COMPATIBLE_IOCTL(KIOCSRATE)
COMPATIBLE_IOCTL(KIOCGRATE)
COMPATIBLE_IOCTL(VUIDSFORMAT)
COMPATIBLE_IOCTL(VUIDGFORMAT)
/* Little v, the video4linux ioctls */
COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
COMPATIBLE_IOCTL(ENVCTRL_RD_WARNING_TEMPERATURE)
COMPATIBLE_IOCTL(ENVCTRL_RD_SHUTDOWN_TEMPERATURE)
COMPATIBLE_IOCTL(ENVCTRL_RD_CPU_TEMPERATURE)
COMPATIBLE_IOCTL(ENVCTRL_RD_FAN_STATUS)
COMPATIBLE_IOCTL(ENVCTRL_RD_VOLTAGE_STATUS)
COMPATIBLE_IOCTL(ENVCTRL_RD_SCSI_TEMPERATURE)
COMPATIBLE_IOCTL(ENVCTRL_RD_ETHERNET_TEMPERATURE)
COMPATIBLE_IOCTL(ENVCTRL_RD_MTHRBD_TEMPERATURE)
COMPATIBLE_IOCTL(ENVCTRL_RD_CPU_VOLTAGE)
COMPATIBLE_IOCTL(ENVCTRL_RD_GLOBALADDRESS)
/* COMPATIBLE_IOCTL(D7SIOCRD) same value as ENVCTRL_RD_VOLTAGE_STATUS */
COMPATIBLE_IOCTL(D7SIOCWR)
COMPATIBLE_IOCTL(D7SIOCTM)
/* OPENPROMIO, SunOS/Solaris only, the NetBSD one's have
 * embedded pointers in the arg which we'd need to clean up...
 */
COMPATIBLE_IOCTL(OPROMGETOPT)
COMPATIBLE_IOCTL(OPROMSETOPT)
COMPATIBLE_IOCTL(OPROMNXTOPT)
COMPATIBLE_IOCTL(OPROMSETOPT2)
COMPATIBLE_IOCTL(OPROMNEXT)
COMPATIBLE_IOCTL(OPROMCHILD)
COMPATIBLE_IOCTL(OPROMGETPROP)
COMPATIBLE_IOCTL(OPROMNXTPROP)
COMPATIBLE_IOCTL(OPROMU2P)
COMPATIBLE_IOCTL(OPROMGETCONS)
COMPATIBLE_IOCTL(OPROMGETFBNAME)
COMPATIBLE_IOCTL(OPROMGETBOOTARGS)
COMPATIBLE_IOCTL(OPROMSETCUR)
COMPATIBLE_IOCTL(OPROMPCI2NODE)
COMPATIBLE_IOCTL(OPROMPATH2NODE)
/* Big L */
COMPATIBLE_IOCTL(LOOP_SET_STATUS64)
COMPATIBLE_IOCTL(LOOP_GET_STATUS64)
/* Big A */
COMPATIBLE_IOCTL(AUDIO_GETINFO)
COMPATIBLE_IOCTL(AUDIO_SETINFO)
COMPATIBLE_IOCTL(AUDIO_DRAIN)
COMPATIBLE_IOCTL(AUDIO_GETDEV)
COMPATIBLE_IOCTL(AUDIO_GETDEV_SUNOS)
COMPATIBLE_IOCTL(AUDIO_FLUSH)
COMPATIBLE_IOCTL(AUTOFS_IOC_EXPIRE_MULTI)
#if defined(CONFIG_DRM) || defined(CONFIG_DRM_MODULE)
COMPATIBLE_IOCTL(DRM_IOCTL_GET_MAGIC)
COMPATIBLE_IOCTL(DRM_IOCTL_IRQ_BUSID)
COMPATIBLE_IOCTL(DRM_IOCTL_AUTH_MAGIC)
COMPATIBLE_IOCTL(DRM_IOCTL_BLOCK)
COMPATIBLE_IOCTL(DRM_IOCTL_UNBLOCK)
COMPATIBLE_IOCTL(DRM_IOCTL_CONTROL)
COMPATIBLE_IOCTL(DRM_IOCTL_ADD_BUFS)
COMPATIBLE_IOCTL(DRM_IOCTL_MARK_BUFS)
COMPATIBLE_IOCTL(DRM_IOCTL_ADD_CTX)
COMPATIBLE_IOCTL(DRM_IOCTL_RM_CTX)
COMPATIBLE_IOCTL(DRM_IOCTL_MOD_CTX)
COMPATIBLE_IOCTL(DRM_IOCTL_GET_CTX)
COMPATIBLE_IOCTL(DRM_IOCTL_SWITCH_CTX)
COMPATIBLE_IOCTL(DRM_IOCTL_NEW_CTX)
COMPATIBLE_IOCTL(DRM_IOCTL_ADD_DRAW)
COMPATIBLE_IOCTL(DRM_IOCTL_RM_DRAW)
COMPATIBLE_IOCTL(DRM_IOCTL_LOCK)
COMPATIBLE_IOCTL(DRM_IOCTL_UNLOCK)
COMPATIBLE_IOCTL(DRM_IOCTL_FINISH)
#endif /* DRM */
COMPATIBLE_IOCTL(WIOCSTART)
COMPATIBLE_IOCTL(WIOCSTOP)
COMPATIBLE_IOCTL(WIOCGSTAT)
/* And these ioctls need translation */
/* Note SIOCRTMSG is no longer, so this is safe and * the user would have seen just an -EINVAL anyways. */
HANDLE_IOCTL(FBIOPUTCMAP32, fbiogetputcmap)
HANDLE_IOCTL(FBIOGETCMAP32, fbiogetputcmap)
HANDLE_IOCTL(FBIOSCURSOR32, fbiogscursor)
#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 */
#if 0
HANDLE_IOCTL(RTC32_IRQP_READ, do_rtc_ioctl)
HANDLE_IOCTL(RTC32_IRQP_SET, do_rtc_ioctl)
HANDLE_IOCTL(RTC32_EPOCH_READ, do_rtc_ioctl)
HANDLE_IOCTL(RTC32_EPOCH_SET, do_rtc_ioctl)
#endif
/* take care of sizeof(sizeof()) breakage */
IOCTL_TABLE_END

int ioctl_table_size = ARRAY_SIZE(ioctl_start);