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/* drm_ioctl.h -- IOCTL processing for DRM -*- linux-c -*-
 * Created: Fri Jan  8 09:01:26 1999 by faith@valinux.com
 *
 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * 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
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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.
 *
 * Authors:
 *    Rickard E. (Rik) Faith <faith@valinux.com>
 *    Gareth Hughes <gareth@valinux.com>
 */

#include "drmP.h"

int DRM(irq_busid)( DRM_IOCTL_ARGS )
{
#ifdef __FreeBSD__
	drm_irq_busid_t id;
	devclass_t pci;
	device_t bus, dev;
	device_t *kids;
	int error, i, num_kids;

	DRM_COPY_FROM_USER_IOCTL( id, (drm_irq_busid_t *)data, sizeof(id) );

	pci = devclass_find("pci");
	if (!pci)
		return ENOENT;
	bus = devclass_get_device(pci, id.busnum);
	if (!bus)
		return ENOENT;
	error = device_get_children(bus, &kids, &num_kids);
	if (error)
		return error;

	dev = 0;
	for (i = 0; i < num_kids; i++) {
		dev = kids[i];
		if (pci_get_slot(dev) == id.devnum
		    && pci_get_function(dev) == id.funcnum)
			break;
	}

	free(kids, M_TEMP);

	if (i != num_kids)
		id.irq = pci_get_irq(dev);
	else
		id.irq = 0;
	DRM_DEBUG("%d:%d:%d => IRQ %d\n",
		  id.busnum, id.devnum, id.funcnum, id.irq);
	
	DRM_COPY_TO_USER_IOCTL( (drm_irq_busid_t *)data, id, sizeof(id) );

	return 0;
#else
	/* don't support interrupt-driven drivers on Net yet */
	return ENOENT;
#endif
}

int DRM(getunique)( DRM_IOCTL_ARGS )
{
	DRM_DEVICE;
	drm_unique_t	 u;

	DRM_COPY_FROM_USER_IOCTL( u, (drm_unique_t *)data, sizeof(u) );

	if (u.unique_len >= dev->unique_len) {
		if (DRM_COPY_TO_USER(u.unique, dev->unique, dev->unique_len))
			return DRM_ERR(EFAULT);
	}
	u.unique_len = dev->unique_len;

	DRM_COPY_TO_USER_IOCTL( (drm_unique_t *)data, u, sizeof(u) );

	return 0;
}

int DRM(setunique)( DRM_IOCTL_ARGS )
{
	DRM_DEVICE;
	drm_unique_t	 u;

	if (dev->unique_len || dev->unique)
		return DRM_ERR(EBUSY);

	DRM_COPY_FROM_USER_IOCTL( u, (drm_unique_t *)data, sizeof(u) );

	if (!u.unique_len || u.unique_len > 1024)
		return DRM_ERR(EINVAL);

	dev->unique_len = u.unique_len;
	dev->unique	= DRM(alloc)(u.unique_len + 1, DRM_MEM_DRIVER);

	if(!dev->unique) return DRM_ERR(ENOMEM);

	if (DRM_COPY_FROM_USER(dev->unique, u.unique, dev->unique_len))
		return DRM_ERR(EFAULT);

	dev->unique[dev->unique_len] = '\0';

	dev->devname = DRM(alloc)(strlen(dev->name) + strlen(dev->unique) + 2,
				  DRM_MEM_DRIVER);
	if(!dev->devname) {
		DRM(free)(dev->devname, sizeof(*dev->devname), DRM_MEM_DRIVER);
		return DRM_ERR(ENOMEM);
	}
	sprintf(dev->devname, "%s@%s", dev->name, dev->unique);


	return 0;
}


int DRM(getmap)( DRM_IOCTL_ARGS )
{
	DRM_DEVICE;
	drm_map_t    map;
	drm_map_t    *mapinlist;
	drm_map_list_entry_t *list;
	int          idx;
	int	     i = 0;

	DRM_COPY_FROM_USER_IOCTL( map, (drm_map_t *)data, sizeof(map) );

	idx = map.offset;

	DRM_LOCK;
	if (idx < 0 || idx >= dev->map_count) {
		DRM_UNLOCK;
		return DRM_ERR(EINVAL);
	}

	TAILQ_FOREACH(list, dev->maplist, link) {
		mapinlist = list->map;
		if (i==idx) {
			map.offset = mapinlist->offset;
			map.size   = mapinlist->size;
			map.type   = mapinlist->type;
			map.flags  = mapinlist->flags;
			map.handle = mapinlist->handle;
			map.mtrr   = mapinlist->mtrr;
			break;
		}
		i++;
	}

	DRM_UNLOCK;

 	if (!list)
		return EINVAL;

	DRM_COPY_TO_USER_IOCTL( (drm_map_t *)data, map, sizeof(map) );

	return 0;
}

int DRM(getclient)( DRM_IOCTL_ARGS )
{
	DRM_DEVICE;
	drm_client_t client;
	drm_file_t   *pt;
	int          idx;
	int          i = 0;

	DRM_COPY_FROM_USER_IOCTL( client, (drm_client_t *)data, sizeof(client) );

	idx = client.idx;
	DRM_LOCK;
	TAILQ_FOREACH(pt, &dev->files, link) {
		if (i==idx)
		{
			client.auth  = pt->authenticated;
			client.pid   = pt->pid;
			client.uid   = pt->uid;
			client.magic = pt->magic;
			client.iocs  = pt->ioctl_count;
			DRM_UNLOCK;

			*(drm_client_t *)data = client;
			return 0;
		}
		i++;
	}
	DRM_UNLOCK;

	DRM_COPY_TO_USER_IOCTL( (drm_client_t *)data, client, sizeof(client) );

	return 0;
}

int DRM(getstats)( DRM_IOCTL_ARGS )
{
	DRM_DEVICE;
	drm_stats_t  stats;
	int          i;

	memset(&stats, 0, sizeof(stats));
	
	DRM_LOCK;

	for (i = 0; i < dev->counters; i++) {
		if (dev->types[i] == _DRM_STAT_LOCK)
			stats.data[i].value
				= (dev->lock.hw_lock
				   ? dev->lock.hw_lock->lock : 0);
		else 
			stats.data[i].value = atomic_read(&dev->counts[i]);
		stats.data[i].type  = dev->types[i];
	}
	
	stats.count = dev->counters;

	DRM_UNLOCK;

	DRM_COPY_TO_USER_IOCTL( (drm_stats_t *)data, stats, sizeof(stats) );

	return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-30 18:55:39 +0000
sion(). */ typedef struct drm_version { int version_major; /**< Major version */ int version_minor; /**< Minor version */ int version_patchlevel;/**< Patch level */ size_t name_len; /**< Length of name buffer */ char *name; /**< Name of driver */ size_t date_len; /**< Length of date buffer */ char *date; /**< User-space buffer to hold date */ size_t desc_len; /**< Length of desc buffer */ char *desc; /**< User-space buffer to hold desc */ } drm_version_t; /** * DRM_IOCTL_GET_UNIQUE ioctl argument type. * * \sa drmGetBusid() and drmSetBusId(). */ typedef struct drm_unique { size_t unique_len; /**< Length of unique */ char *unique; /**< Unique name for driver instantiation */ } drm_unique_t; typedef struct drm_list { int count; /**< Length of user-space structures */ drm_version_t *version; } drm_list_t; typedef struct drm_block { int unused; } drm_block_t; /** * DRM_IOCTL_CONTROL ioctl argument type. * * \sa drmCtlInstHandler() and drmCtlUninstHandler(). */ typedef struct drm_control { enum { DRM_ADD_COMMAND, DRM_RM_COMMAND, DRM_INST_HANDLER, DRM_UNINST_HANDLER } func; int irq; } drm_control_t; /** * Type of memory to map. */ typedef enum drm_map_type { _DRM_FRAME_BUFFER = 0, /**< WC (no caching), no core dump */ _DRM_REGISTERS = 1, /**< no caching, no core dump */ _DRM_SHM = 2, /**< shared, cached */ _DRM_AGP = 3, /**< AGP/GART */ _DRM_SCATTER_GATHER = 4 /**< Scatter/gather memory for PCI DMA */ } drm_map_type_t; /** * Memory mapping flags. */ typedef enum drm_map_flags { _DRM_RESTRICTED = 0x01, /**< Cannot be mapped to user-virtual */ _DRM_READ_ONLY = 0x02, _DRM_LOCKED = 0x04, /**< shared, cached, locked */ _DRM_KERNEL = 0x08, /**< kernel requires access */ _DRM_WRITE_COMBINING = 0x10, /**< use write-combining if available */ _DRM_CONTAINS_LOCK = 0x20, /**< SHM page that contains lock */ _DRM_REMOVABLE = 0x40 /**< Removable mapping */ } drm_map_flags_t; typedef struct drm_ctx_priv_map { unsigned int ctx_id; /**< Context requesting private mapping */ void *handle; /**< Handle of map */ } drm_ctx_priv_map_t; /** * DRM_IOCTL_GET_MAP, DRM_IOCTL_ADD_MAP and DRM_IOCTL_RM_MAP ioctls * argument type. * * \sa drmAddMap(). */ typedef struct drm_map { unsigned long offset; /**< Requested physical address (0 for SAREA)*/ unsigned long size; /**< Requested physical size (bytes) */ drm_map_type_t type; /**< Type of memory to map */ drm_map_flags_t flags; /**< Flags */ void *handle; /**< User-space: "Handle" to pass to mmap() */ /**< Kernel-space: kernel-virtual address */ int mtrr; /**< MTRR slot used */ /* Private data */ } drm_map_t; /** * DRM_IOCTL_GET_CLIENT ioctl argument type. */ typedef struct drm_client { int idx; /**< Which client desired? */ int auth; /**< Is client authenticated? */ unsigned long pid; /**< Process ID */ unsigned long uid; /**< User ID */ unsigned long magic; /**< Magic */ unsigned long iocs; /**< Ioctl count */ } drm_client_t; typedef enum { _DRM_STAT_LOCK, _DRM_STAT_OPENS, _DRM_STAT_CLOSES, _DRM_STAT_IOCTLS, _DRM_STAT_LOCKS, _DRM_STAT_UNLOCKS, _DRM_STAT_VALUE, /**< Generic value */ _DRM_STAT_BYTE, /**< Generic byte counter (1024bytes/K) */ _DRM_STAT_COUNT, /**< Generic non-byte counter (1000/k) */ _DRM_STAT_IRQ, /**< IRQ */ _DRM_STAT_PRIMARY, /**< Primary DMA bytes */ _DRM_STAT_SECONDARY, /**< Secondary DMA bytes */ _DRM_STAT_DMA, /**< DMA */ _DRM_STAT_SPECIAL, /**< Special DMA (e.g., priority or polled) */ _DRM_STAT_MISSED /**< Missed DMA opportunity */ /* Add to the *END* of the list */ } drm_stat_type_t; /** * DRM_IOCTL_GET_STATS ioctl argument type. */ typedef struct drm_stats { unsigned long count; struct { unsigned long value; drm_stat_type_t type; } data[15]; } drm_stats_t; /** * Hardware locking flags. */ typedef enum drm_lock_flags { _DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */ _DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */ _DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */ _DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */ /* These *HALT* flags aren't supported yet -- they will be used to support the full-screen DGA-like mode. */ _DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */ _DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */ } drm_lock_flags_t; /** * DRM_IOCTL_LOCK, DRM_IOCTL_UNLOCK and DRM_IOCTL_FINISH ioctl argument type. * * \sa drmGetLock() and drmUnlock(). */ typedef struct drm_lock { int context; drm_lock_flags_t flags; } drm_lock_t; /** * DMA flags * * \warning * These values \e must match xf86drm.h. * * \sa drm_dma. */ typedef enum drm_dma_flags { /* Flags for DMA buffer dispatch */ _DRM_DMA_BLOCK = 0x01, /**< * Block until buffer dispatched. * * \note The buffer may not yet have * been processed by the hardware -- * getting a hardware lock with the * hardware quiescent will ensure * that the buffer has been * processed. */ _DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */ _DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */ /* Flags for DMA buffer request */ _DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */ _DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */ _DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */ } drm_dma_flags_t; /** * DRM_IOCTL_ADD_BUFS and DRM_IOCTL_MARK_BUFS ioctl argument type. * * \sa drmAddBufs(). */ typedef struct drm_buf_desc { 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 */ enum { _DRM_PAGE_ALIGN = 0x01, /**< Align on page boundaries for DMA */ _DRM_AGP_BUFFER = 0x02, /**< Buffer is in AGP space */ _DRM_SG_BUFFER = 0x04 /**< Scatter/gather memory buffer */ } flags; unsigned long agp_start; /**< * Start address of where the AGP buffers are * in the AGP aperture */ } drm_buf_desc_t; /** * DRM_IOCTL_INFO_BUFS ioctl argument type. */ typedef struct drm_buf_info { int count; /**< Entries in list */ drm_buf_desc_t *list; } drm_buf_info_t; /** * DRM_IOCTL_FREE_BUFS ioctl argument type. */ typedef struct drm_buf_free { int count; int *list; } drm_buf_free_t; /** * Buffer information * * \sa drm_buf_map. */ typedef struct drm_buf_pub { int idx; /**< Index into the master buffer list */ int total; /**< Buffer size */ int used; /**< Amount of buffer in use (for DMA) */ void *address; /**< Address of buffer */ } drm_buf_pub_t; /** * DRM_IOCTL_MAP_BUFS ioctl argument type. */ typedef struct drm_buf_map { int count; /**< Length of the buffer list */ void *virtual; /**< Mmap'd area in user-virtual */ drm_buf_pub_t *list; /**< Buffer information */ } drm_buf_map_t; /** * DRM_IOCTL_DMA ioctl argument type. * * Indices here refer to the offset into the buffer list in drm_buf_get. * * \sa drmDMA(). */ typedef struct drm_dma { int context; /**< Context handle */ int send_count; /**< Number of buffers to send */ int *send_indices; /**< List of handles to buffers */ int *send_sizes; /**< Lengths of data to send */ drm_dma_flags_t flags; /**< Flags */ int request_count; /**< Number of buffers requested */ int request_size; /**< Desired size for buffers */ int *request_indices; /**< Buffer information */ int *request_sizes; int granted_count; /**< Number of buffers granted */ } drm_dma_t; typedef enum { _DRM_CONTEXT_PRESERVED = 0x01, _DRM_CONTEXT_2DONLY = 0x02 } drm_ctx_flags_t; /** * DRM_IOCTL_ADD_CTX ioctl argument type. * * \sa drmCreateContext() and drmDestroyContext(). */ typedef struct drm_ctx { drm_context_t handle; drm_ctx_flags_t flags; } drm_ctx_t; /** * DRM_IOCTL_RES_CTX ioctl argument type. */ typedef struct drm_ctx_res { int count; drm_ctx_t *contexts; } drm_ctx_res_t; /** * DRM_IOCTL_ADD_DRAW and DRM_IOCTL_RM_DRAW ioctl argument type. */ typedef struct drm_draw { drm_drawable_t handle; } drm_draw_t; /** * DRM_IOCTL_GET_MAGIC and DRM_IOCTL_AUTH_MAGIC ioctl argument type. */ typedef struct drm_auth { drm_magic_t magic; } drm_auth_t; /** * DRM_IOCTL_IRQ_BUSID ioctl argument type. * * \sa drmGetInterruptFromBusID(). */ typedef struct drm_irq_busid { int irq; /**< IRQ number */ int busnum; /**< bus number */ int devnum; /**< device number */ int funcnum; /**< function number */ } drm_irq_busid_t; typedef enum { _DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */ _DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */ _DRM_VBLANK_SIGNAL = 0x40000000 /**< Send signal instead of blocking */ } drm_vblank_seq_type_t; #define _DRM_VBLANK_FLAGS_MASK _DRM_VBLANK_SIGNAL struct drm_wait_vblank_request { drm_vblank_seq_type_t type; unsigned int sequence; unsigned long signal; }; struct drm_wait_vblank_reply { drm_vblank_seq_type_t type; unsigned int sequence; long tval_sec; long tval_usec; }; /** * DRM_IOCTL_WAIT_VBLANK ioctl argument type. * * \sa drmWaitVBlank(). */ typedef union drm_wait_vblank { struct drm_wait_vblank_request request; struct drm_wait_vblank_reply reply; } drm_wait_vblank_t; /** * DRM_IOCTL_AGP_ENABLE ioctl argument type. * * \sa drmAgpEnable(). */ typedef struct drm_agp_mode { unsigned long mode; /**< AGP mode */ } drm_agp_mode_t; /** * DRM_IOCTL_AGP_ALLOC and DRM_IOCTL_AGP_FREE ioctls argument type. * * \sa drmAgpAlloc() and drmAgpFree(). */ typedef struct drm_agp_buffer { unsigned long size; /**< In bytes -- will round to page boundary */ unsigned long handle; /**< Used for binding / unbinding */ unsigned long type; /**< Type of memory to allocate */ unsigned long physical; /**< Physical used by i810 */ } drm_agp_buffer_t; /** * DRM_IOCTL_AGP_BIND and DRM_IOCTL_AGP_UNBIND ioctls argument type. * * \sa drmAgpBind() and drmAgpUnbind(). */ typedef struct drm_agp_binding { unsigned long handle; /**< From drm_agp_buffer */ unsigned long offset; /**< In bytes -- will round to page boundary */ } drm_agp_binding_t; /** * DRM_IOCTL_AGP_INFO ioctl argument type. * * \sa drmAgpVersionMajor(), drmAgpVersionMinor(), drmAgpGetMode(), * drmAgpBase(), drmAgpSize(), drmAgpMemoryUsed(), drmAgpMemoryAvail(), * drmAgpVendorId() and drmAgpDeviceId(). */ typedef struct drm_agp_info { int agp_version_major; int agp_version_minor; unsigned long mode;