summaryrefslogtreecommitdiff
path: root/shared-core/nv20_graph.c
AgeCommit message (Expand)Author
2008-02-04nouveau: make nv34 work every time, not just every 2nd timeStuart Bennett
2008-01-04[PATCH] nouveau: Fix nv20/30 context loadingStuart Bennett
2007-12-15Revert "nouveau: nv30: missing ramin init, does it brake other hw?"Patrice Mandin
2007-11-15nouveau: revert the nv34 context size change, it was not the culprit after all.Stephane Marchesin
2007-11-14nouveau: nv30: missing ramin init, does it brake other hw?Patrice Mandin
2007-11-14nouveau: adjust the size of the NV34 context. That fixes mobile PPC cards.Stephane Marchesin
2007-11-05drm: remove lots of spurious whitespace.Dave Airlie
2007-11-04nouveau: more nv20_graph_init.Pekka Paalanen
2007-10-30Nouveau: fold some loops.Stephane Marchesin
2007-10-26nouveau: flip the CHECK_STATE bit off on nv30. This lets you do 8-bit surface...Stephane Marchesin
2007-10-12nouveau: Fix a typo in nv25_graph_context_initPekka Paalanen
2007-10-12nouveau: Fix typos in nv20_graph_context_initStuart Bennett
2007-10-04nouveau: nv2a drm context switch support.Stephane Marchesin
2007-10-02nouveau: nv20 graph_create_context differencePekka Paalanen
2007-10-02nouveau: fix nv25_graph_context_initPekka Paalanen
2007-10-02nouveau: nv20 graph context initStuart Bennett
2007-10-01nouveau: flip the ctx switch bit on. it seems to be ignored on nv34 but cause...Stephane Marchesin
2007-09-30nouveau : nv30 remove harcoded NV20_PGRAPH_CHANNEL_CTX_TABLEMatthieu Castet
2007-09-30nouveau : nv20_graph replace nouveau_graph_wait_idle by nouveau_wait_for_idleMatthieu Castet
2007-09-30nouveau: rename nv30_graph.c to nv20_graph.cPekka Paalanen
2007-09-30nouveau: nv30 graph function renames, removed nv20_graph.cPekka Paalanen
2007-09-30nouveau: let nv20 hardware do ctx switching automatically.Pekka Paalanen
2007-09-30nouveau: Make nv20 use the nv30 PGRAPH ctx functions.Pekka Paalanen
2007-08-08nouveau: enable/disable engine-specific interrupts in _init()/_takedown()Ben Skeggs
2007-08-06nouveau: Pass channel struct around instead of channel id.Ben Skeggs
2007-07-20Remove DRM_ERR OS macro.Eric Anholt
2007-07-17nouveau: Destroy PGRAPH context table on PGRAPH takedownBen Skeggs
2007-07-13nouveau: nuke internal typedefs, and drm_device_t use.Ben Skeggs
2007-07-09nouveau/nv50: Initial channel/object supportBen Skeggs
2007-07-09nouveau: rewrite gpu object codeBen Skeggs
2007-06-24nouveau: NV04/NV10/NV20 PGRAPH engtab functionsBen Skeggs
2007-04-01nouveau: fix usage of PGRAPH_CTX_CONTROL on nv20+Matthieu Castet
2007-03-26nouveau: move card initialisation into the drmBen Skeggs
2007-02-03nouveau: rename registers to their proper names.Stephane Marchesin
2007-01-14nouveau: opps nv20 ctx ramin size was wrongMatthieu Castet
2007-01-13nouveau: opps restored the wrong channelMatthieu Castet
2007-01-13nouveau: nv20 graph ctx switch.Matthieu Castet
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-12 18:43:45 +0000
d='n319' href='#n319'>319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 
/**
 * \file drm_ioctl.c
 * IOCTL processing for DRM
 *
 * \author Rickard E. (Rik) Faith <faith@valinux.com>
 * \author Gareth Hughes <gareth@valinux.com>
 */

/*
 * 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.
 */

#include "drmP.h"
#include "drm_core.h"

#include "linux/pci.h"

/**
 * Get the bus id.
 *
 * \param inode device inode.
 * \param file_priv DRM file private.
 * \param cmd command.
 * \param arg user argument, pointing to a drm_unique structure.
 * \return zero on success or a negative number on failure.
 *
 * Copies the bus id from drm_device::unique into user space.
 */
int drm_getunique(struct drm_device *dev, void *data,
		  struct drm_file *file_priv)
{
	struct drm_unique *u = data;
	struct drm_master *master = file_priv->master;

	if (u->unique_len >= master->unique_len) {
		if (copy_to_user(u->unique, master->unique, master->unique_len))
			return -EFAULT;
	}
	u->unique_len = master->unique_len;

	return 0;
}

/**
 * Set the bus id.
 *
 * \param inode device inode.
 * \param file_priv DRM file private.
 * \param cmd command.
 * \param arg user argument, pointing to a drm_unique structure.
 * \return zero on success or a negative number on failure.
 *
 * Copies the bus id from userspace into drm_device::unique, and verifies that
 * it matches the device this DRM is attached to (EINVAL otherwise).  Deprecated
 * in interface version 1.1 and will return EBUSY when setversion has requested
 * version 1.1 or greater.
 */
int drm_setunique(struct drm_device *dev, void *data,
		  struct drm_file *file_priv)
{
	struct drm_unique *u = data;
	struct drm_master *master = file_priv->master;
	int domain, bus, slot, func, ret;

	if (master->unique_len || master->unique)
		return -EBUSY;

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

	master->unique_len = u->unique_len;
	master->unique = drm_alloc(u->unique_len + 1, DRM_MEM_DRIVER);
	if (!master->unique)
		return -ENOMEM;
	if (copy_from_user(master->unique, u->unique, master->unique_len))
		return -EFAULT;

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

	dev->devname =
	    drm_alloc(strlen(dev->driver->pci_driver.name) +
		      strlen(master->unique) + 2, DRM_MEM_DRIVER);
	if (!dev->devname)
		return -ENOMEM;

	sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
		master->unique);

	/* Return error if the busid submitted doesn't match the device's actual
	 * busid.
	 */
	ret = sscanf(master->unique, "PCI:%d:%d:%d", &bus, &slot, &func);
	if (ret != 3)
		return -EINVAL;
	domain = bus >> 8;
	bus &= 0xff;

	if ((domain != drm_get_pci_domain(dev)) ||
	    (bus != dev->pdev->bus->number) ||
	    (slot != PCI_SLOT(dev->pdev->devfn)) ||
	    (func != PCI_FUNC(dev->pdev->devfn)))
		return -EINVAL;

	return 0;
}

static int drm_set_busid(struct drm_device *dev, struct drm_file *file_priv)
{
	struct drm_master *master = file_priv->master;
	int len;

	if (master->unique != NULL)
		return -EBUSY;

	master->unique_len = 40;
	master->unique = drm_alloc(master->unique_len + 1, DRM_MEM_DRIVER);
	if (master->unique == NULL)
		return -ENOMEM;

	len = snprintf(master->unique, master->unique_len, "pci:%04x:%02x:%02x.%d",
		       drm_get_pci_domain(dev),
		       dev->pdev->bus->number,
		       PCI_SLOT(dev->pdev->devfn),
		       PCI_FUNC(dev->pdev->devfn));
	if (len > master->unique_len)
		DRM_ERROR("buffer overflow");

	dev->devname =
	    drm_alloc(strlen(dev->driver->pci_driver.name) + master->unique_len +
		      2, DRM_MEM_DRIVER);
	if (dev->devname == NULL)
		return -ENOMEM;

	sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
		master->unique);

	return 0;
}

/**
 * Get a mapping information.
 *
 * \param inode device inode.
 * \param file_priv DRM file private.
 * \param cmd command.
 * \param arg user argument, pointing to a drm_map structure.
 *
 * \return zero on success or a negative number on failure.
 *
 * Searches for the mapping with the specified offset and copies its information
 * into userspace
 */
int drm_getmap(struct drm_device *dev, void *data,
	       struct drm_file *file_priv)
{
	struct drm_map *map = data;
	struct drm_map_list *r_list = NULL;
	struct list_head *list;
	int idx;
	int i;

	idx = map->offset;

	mutex_lock(&dev->struct_mutex);
	if (idx < 0) {
		mutex_unlock(&dev->struct_mutex);
		return -EINVAL;
	}

	i = 0;
	list_for_each(list, &dev->maplist) {
		if (i == idx) {
			r_list = list_entry(list, struct drm_map_list, head);
			break;
		}
		i++;
	}
	if (!r_list || !r_list->map) {
		mutex_unlock(&dev->struct_mutex);
		return -EINVAL;
	}

	map->offset = r_list->map->offset;
	map->size = r_list->map->size;
	map->type = r_list->map->type;
	map->flags = r_list->map->flags;
	map->handle = (void *)(unsigned long) r_list->user_token;
	map->mtrr = r_list->map->mtrr;
	mutex_unlock(&dev->struct_mutex);

	return 0;
}

/**
 * Get client information.
 *
 * \param inode device inode.
 * \param file_priv DRM file private.
 * \param cmd command.
 * \param arg user argument, pointing to a drm_client structure.
 *
 * \return zero on success or a negative number on failure.
 *
 * Searches for the client with the specified index and copies its information
 * into userspace
 */
int drm_getclient(struct drm_device *dev, void *data,
		  struct drm_file *file_priv)
{
	struct drm_client *client = data;
	struct drm_file *pt;
	int idx;
	int i;

	idx = client->idx;
	mutex_lock(&dev->struct_mutex);

	i = 0;
	list_for_each_entry(pt, &dev->filelist, lhead) {
		if (i++ >= idx) {
			client->auth = pt->authenticated;
			client->pid = pt->pid;
			client->uid = pt->uid;
			client->magic = pt->magic;
			client->iocs = pt->ioctl_count;
			mutex_unlock(&dev->struct_mutex);

			return 0;
		}
	}
	mutex_unlock(&dev->struct_mutex);

	return -EINVAL;
}

/**
 * Get statistics information.
 *
 * \param inode device inode.
 * \param file_priv DRM file private.
 * \param cmd command.
 * \param arg user argument, pointing to a drm_stats structure.
 *
 * \return zero on success or a negative number on failure.
 */
int drm_getstats(struct drm_device *dev, void *data,
		 struct drm_file *file_priv)
{
	struct drm_stats *stats = data;
	int i;

	memset(stats, 0, sizeof(*stats));

	mutex_lock(&dev->struct_mutex);

	for (i = 0; i < dev->counters; i++) {
		if (dev->types[i] == _DRM_STAT_LOCK)
			stats->data[i].value =
			    (file_priv->master->lock.hw_lock ? file_priv->master->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;

	mutex_unlock(&dev->struct_mutex);

	return 0;
}

/**
 * Setversion ioctl.
 *
 * \param inode device inode.
 * \param file_priv DRM file private.
 * \param cmd command.
 * \param arg user argument, pointing to a drm_lock structure.
 * \return zero on success or negative number on failure.
 *
 * Sets the requested interface version
 */
int drm_setversion(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
	struct drm_set_version *sv = data;
	int if_version, retcode = 0;

	if (sv->drm_di_major != -1) {
		if (sv->drm_di_major != DRM_IF_MAJOR ||
		    sv->drm_di_minor < 0 || sv->drm_di_minor > DRM_IF_MINOR) {
			retcode = -EINVAL;
			goto done;
		}
		if_version = DRM_IF_VERSION(sv->drm_di_major,
					    sv->drm_di_minor);
		dev->if_version = max(if_version, dev->if_version);
		if (sv->drm_di_minor >= 1) {
			/*
			 * Version 1.1 includes tying of DRM to specific device
			 */
			drm_set_busid(dev, file_priv);
		}
	}

	if (sv->drm_dd_major != -1) {
		if (sv->drm_dd_major != dev->driver->major ||
		    sv->drm_dd_minor < 0 || sv->drm_dd_minor >
		    dev->driver->minor) {
			retcode = -EINVAL;
			goto done;
		}

		if (dev->driver->set_version)
			dev->driver->set_version(dev, sv);
	}

done:
	sv->drm_di_major = DRM_IF_MAJOR;
	sv->drm_di_minor = DRM_IF_MINOR;
	sv->drm_dd_major = dev->driver->major;
	sv->drm_dd_minor = dev->driver->minor;

	return retcode;
}

/** No-op ioctl. */
int drm_noop(struct drm_device *dev, void *data,
	     struct drm_file *file_priv)
{
	DRM_DEBUG("\n");
	return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-12 18:43:45 +0000