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-rw-r--r--drivers/char/drm/README.drm16
-rw-r--r--drivers/char/drm/drm.h4
-rw-r--r--drivers/char/drm/drmP.h23
-rw-r--r--drivers/char/drm/drm_bufs.c75
-rw-r--r--drivers/char/drm/drm_drv.c9
-rw-r--r--drivers/char/drm/drm_fops.c96
-rw-r--r--drivers/char/drm/drm_hashtab.c17
-rw-r--r--drivers/char/drm/drm_hashtab.h1
-rw-r--r--drivers/char/drm/drm_irq.c4
-rw-r--r--drivers/char/drm/drm_lock.c134
-rw-r--r--drivers/char/drm/drm_mm.c2
-rw-r--r--drivers/char/drm/drm_pciids.h3
-rw-r--r--drivers/char/drm/drm_proc.c2
-rw-r--r--drivers/char/drm/drm_stub.c1
-rw-r--r--drivers/char/drm/drm_vm.c102
-rw-r--r--drivers/char/drm/i915_dma.c3
-rw-r--r--drivers/char/drm/radeon_cp.c8
-rw-r--r--drivers/char/drm/sis_drv.c2
-rw-r--r--drivers/char/drm/via_drv.c3
-rw-r--r--drivers/char/drm/via_mm.h40
20 files changed, 349 insertions, 196 deletions
diff --git a/drivers/char/drm/README.drm b/drivers/char/drm/README.drm
index 6441e01e587c..af74cd79a279 100644
--- a/drivers/char/drm/README.drm
+++ b/drivers/char/drm/README.drm
@@ -1,6 +1,6 @@
1************************************************************ 1************************************************************
2* For the very latest on DRI development, please see: * 2* For the very latest on DRI development, please see: *
3* http://dri.sourceforge.net/ * 3* http://dri.freedesktop.org/ *
4************************************************************ 4************************************************************
5 5
6The Direct Rendering Manager (drm) is a device-independent kernel-level 6The Direct Rendering Manager (drm) is a device-independent kernel-level
@@ -26,21 +26,19 @@ ways:
26 26
27 27
28Documentation on the DRI is available from: 28Documentation on the DRI is available from:
29 http://precisioninsight.com/piinsights.html 29 http://dri.freedesktop.org/wiki/Documentation
30 http://sourceforge.net/project/showfiles.php?group_id=387
31 http://dri.sourceforge.net/doc/
30 32
31For specific information about kernel-level support, see: 33For specific information about kernel-level support, see:
32 34
33 The Direct Rendering Manager, Kernel Support for the Direct Rendering 35 The Direct Rendering Manager, Kernel Support for the Direct Rendering
34 Infrastructure 36 Infrastructure
35 http://precisioninsight.com/dr/drm.html 37 http://dri.sourceforge.net/doc/drm_low_level.html
36 38
37 Hardware Locking for the Direct Rendering Infrastructure 39 Hardware Locking for the Direct Rendering Infrastructure
38 http://precisioninsight.com/dr/locking.html 40 http://dri.sourceforge.net/doc/hardware_locking_low_level.html
39 41
40 A Security Analysis of the Direct Rendering Infrastructure 42 A Security Analysis of the Direct Rendering Infrastructure
41 http://precisioninsight.com/dr/security.html 43 http://dri.sourceforge.net/doc/security_low_level.html
42 44
43************************************************************
44* For the very latest on DRI development, please see: *
45* http://dri.sourceforge.net/ *
46************************************************************
diff --git a/drivers/char/drm/drm.h b/drivers/char/drm/drm.h
index 8db9041e306c..089198491f16 100644
--- a/drivers/char/drm/drm.h
+++ b/drivers/char/drm/drm.h
@@ -654,11 +654,13 @@ typedef struct drm_set_version {
654 654
655/** 655/**
656 * Device specific ioctls should only be in their respective headers 656 * Device specific ioctls should only be in their respective headers
657 * The device specific ioctl range is from 0x40 to 0x79. 657 * The device specific ioctl range is from 0x40 to 0x99.
658 * Generic IOCTLS restart at 0xA0.
658 * 659 *
659 * \sa drmCommandNone(), drmCommandRead(), drmCommandWrite(), and 660 * \sa drmCommandNone(), drmCommandRead(), drmCommandWrite(), and
660 * drmCommandReadWrite(). 661 * drmCommandReadWrite().
661 */ 662 */
662#define DRM_COMMAND_BASE 0x40 663#define DRM_COMMAND_BASE 0x40
664#define DRM_COMMAND_END 0xA0
663 665
664#endif 666#endif
diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h
index 85d99e21e188..80041d5b792d 100644
--- a/drivers/char/drm/drmP.h
+++ b/drivers/char/drm/drmP.h
@@ -414,6 +414,10 @@ typedef struct drm_lock_data {
414 struct file *filp; /**< File descr of lock holder (0=kernel) */ 414 struct file *filp; /**< File descr of lock holder (0=kernel) */
415 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 415 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
416 unsigned long lock_time; /**< Time of last lock in jiffies */ 416 unsigned long lock_time; /**< Time of last lock in jiffies */
417 spinlock_t spinlock;
418 uint32_t kernel_waiters;
419 uint32_t user_waiters;
420 int idle_has_lock;
417} drm_lock_data_t; 421} drm_lock_data_t;
418 422
419/** 423/**
@@ -590,6 +594,8 @@ struct drm_driver {
590 void (*reclaim_buffers) (struct drm_device * dev, struct file * filp); 594 void (*reclaim_buffers) (struct drm_device * dev, struct file * filp);
591 void (*reclaim_buffers_locked) (struct drm_device *dev, 595 void (*reclaim_buffers_locked) (struct drm_device *dev,
592 struct file *filp); 596 struct file *filp);
597 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
598 struct file * filp);
593 unsigned long (*get_map_ofs) (drm_map_t * map); 599 unsigned long (*get_map_ofs) (drm_map_t * map);
594 unsigned long (*get_reg_ofs) (struct drm_device * dev); 600 unsigned long (*get_reg_ofs) (struct drm_device * dev);
595 void (*set_version) (struct drm_device * dev, drm_set_version_t * sv); 601 void (*set_version) (struct drm_device * dev, drm_set_version_t * sv);
@@ -764,7 +770,7 @@ static __inline__ int drm_core_check_feature(struct drm_device *dev,
764} 770}
765 771
766#ifdef __alpha__ 772#ifdef __alpha__
767#define drm_get_pci_domain(dev) dev->hose->bus->number 773#define drm_get_pci_domain(dev) dev->hose->index
768#else 774#else
769#define drm_get_pci_domain(dev) 0 775#define drm_get_pci_domain(dev) 0
770#endif 776#endif
@@ -915,9 +921,18 @@ extern int drm_lock(struct inode *inode, struct file *filp,
915 unsigned int cmd, unsigned long arg); 921 unsigned int cmd, unsigned long arg);
916extern int drm_unlock(struct inode *inode, struct file *filp, 922extern int drm_unlock(struct inode *inode, struct file *filp,
917 unsigned int cmd, unsigned long arg); 923 unsigned int cmd, unsigned long arg);
918extern int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context); 924extern int drm_lock_take(drm_lock_data_t *lock_data, unsigned int context);
919extern int drm_lock_free(drm_device_t * dev, 925extern int drm_lock_free(drm_lock_data_t *lock_data, unsigned int context);
920 __volatile__ unsigned int *lock, unsigned int context); 926extern void drm_idlelock_take(drm_lock_data_t *lock_data);
927extern void drm_idlelock_release(drm_lock_data_t *lock_data);
928
929/*
930 * These are exported to drivers so that they can implement fencing using
931 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
932 */
933
934extern int drm_i_have_hw_lock(struct file *filp);
935extern int drm_kernel_take_hw_lock(struct file *filp);
921 936
922 /* Buffer management support (drm_bufs.h) */ 937 /* Buffer management support (drm_bufs.h) */
923extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request); 938extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request);
diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c
index a6828cc14e58..c11345856ffe 100644
--- a/drivers/char/drm/drm_bufs.c
+++ b/drivers/char/drm/drm_bufs.c
@@ -57,7 +57,8 @@ static drm_map_list_t *drm_find_matching_map(drm_device_t *dev,
57 list_for_each(list, &dev->maplist->head) { 57 list_for_each(list, &dev->maplist->head) {
58 drm_map_list_t *entry = list_entry(list, drm_map_list_t, head); 58 drm_map_list_t *entry = list_entry(list, drm_map_list_t, head);
59 if (entry->map && map->type == entry->map->type && 59 if (entry->map && map->type == entry->map->type &&
60 entry->map->offset == map->offset) { 60 ((entry->map->offset == map->offset) ||
61 (map->type == _DRM_SHM && map->flags==_DRM_CONTAINS_LOCK))) {
61 return entry; 62 return entry;
62 } 63 }
63 } 64 }
@@ -180,8 +181,20 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset,
180 if (map->type == _DRM_REGISTERS) 181 if (map->type == _DRM_REGISTERS)
181 map->handle = ioremap(map->offset, map->size); 182 map->handle = ioremap(map->offset, map->size);
182 break; 183 break;
183
184 case _DRM_SHM: 184 case _DRM_SHM:
185 list = drm_find_matching_map(dev, map);
186 if (list != NULL) {
187 if(list->map->size != map->size) {
188 DRM_DEBUG("Matching maps of type %d with "
189 "mismatched sizes, (%ld vs %ld)\n",
190 map->type, map->size, list->map->size);
191 list->map->size = map->size;
192 }
193
194 drm_free(map, sizeof(*map), DRM_MEM_MAPS);
195 *maplist = list;
196 return 0;
197 }
185 map->handle = vmalloc_user(map->size); 198 map->handle = vmalloc_user(map->size);
186 DRM_DEBUG("%lu %d %p\n", 199 DRM_DEBUG("%lu %d %p\n",
187 map->size, drm_order(map->size), map->handle); 200 map->size, drm_order(map->size), map->handle);
@@ -200,15 +213,45 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset,
200 dev->sigdata.lock = dev->lock.hw_lock = map->handle; /* Pointer to lock */ 213 dev->sigdata.lock = dev->lock.hw_lock = map->handle; /* Pointer to lock */
201 } 214 }
202 break; 215 break;
203 case _DRM_AGP: 216 case _DRM_AGP: {
204 if (drm_core_has_AGP(dev)) { 217 drm_agp_mem_t *entry;
218 int valid = 0;
219
220 if (!drm_core_has_AGP(dev)) {
221 drm_free(map, sizeof(*map), DRM_MEM_MAPS);
222 return -EINVAL;
223 }
205#ifdef __alpha__ 224#ifdef __alpha__
206 map->offset += dev->hose->mem_space->start; 225 map->offset += dev->hose->mem_space->start;
207#endif 226#endif
208 map->offset += dev->agp->base; 227 /* Note: dev->agp->base may actually be 0 when the DRM
209 map->mtrr = dev->agp->agp_mtrr; /* for getmap */ 228 * is not in control of AGP space. But if user space is
229 * it should already have added the AGP base itself.
230 */
231 map->offset += dev->agp->base;
232 map->mtrr = dev->agp->agp_mtrr; /* for getmap */
233
234 /* This assumes the DRM is in total control of AGP space.
235 * It's not always the case as AGP can be in the control
236 * of user space (i.e. i810 driver). So this loop will get
237 * skipped and we double check that dev->agp->memory is
238 * actually set as well as being invalid before EPERM'ing
239 */
240 for (entry = dev->agp->memory; entry; entry = entry->next) {
241 if ((map->offset >= entry->bound) &&
242 (map->offset + map->size <= entry->bound + entry->pages * PAGE_SIZE)) {
243 valid = 1;
244 break;
245 }
210 } 246 }
247 if (dev->agp->memory && !valid) {
248 drm_free(map, sizeof(*map), DRM_MEM_MAPS);
249 return -EPERM;
250 }
251 DRM_DEBUG("AGP offset = 0x%08lx, size = 0x%08lx\n", map->offset, map->size);
252
211 break; 253 break;
254 }
212 case _DRM_SCATTER_GATHER: 255 case _DRM_SCATTER_GATHER:
213 if (!dev->sg) { 256 if (!dev->sg) {
214 drm_free(map, sizeof(*map), DRM_MEM_MAPS); 257 drm_free(map, sizeof(*map), DRM_MEM_MAPS);
@@ -267,7 +310,7 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset,
267 310
268 *maplist = list; 311 *maplist = list;
269 return 0; 312 return 0;
270} 313 }
271 314
272int drm_addmap(drm_device_t * dev, unsigned int offset, 315int drm_addmap(drm_device_t * dev, unsigned int offset,
273 unsigned int size, drm_map_type_t type, 316 unsigned int size, drm_map_type_t type,
@@ -519,6 +562,7 @@ int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request)
519{ 562{
520 drm_device_dma_t *dma = dev->dma; 563 drm_device_dma_t *dma = dev->dma;
521 drm_buf_entry_t *entry; 564 drm_buf_entry_t *entry;
565 drm_agp_mem_t *agp_entry;
522 drm_buf_t *buf; 566 drm_buf_t *buf;
523 unsigned long offset; 567 unsigned long offset;
524 unsigned long agp_offset; 568 unsigned long agp_offset;
@@ -529,7 +573,7 @@ int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request)
529 int page_order; 573 int page_order;
530 int total; 574 int total;
531 int byte_count; 575 int byte_count;
532 int i; 576 int i, valid;
533 drm_buf_t **temp_buflist; 577 drm_buf_t **temp_buflist;
534 578
535 if (!dma) 579 if (!dma)
@@ -560,6 +604,19 @@ int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request)
560 if (dev->queue_count) 604 if (dev->queue_count)
561 return -EBUSY; /* Not while in use */ 605 return -EBUSY; /* Not while in use */
562 606
607 /* Make sure buffers are located in AGP memory that we own */
608 valid = 0;
609 for (agp_entry = dev->agp->memory; agp_entry; agp_entry = agp_entry->next) {
610 if ((agp_offset >= agp_entry->bound) &&
611 (agp_offset + total * count <= agp_entry->bound + agp_entry->pages * PAGE_SIZE)) {
612 valid = 1;
613 break;
614 }
615 }
616 if (dev->agp->memory && !valid) {
617 DRM_DEBUG("zone invalid\n");
618 return -EINVAL;
619 }
563 spin_lock(&dev->count_lock); 620 spin_lock(&dev->count_lock);
564 if (dev->buf_use) { 621 if (dev->buf_use) {
565 spin_unlock(&dev->count_lock); 622 spin_unlock(&dev->count_lock);
diff --git a/drivers/char/drm/drm_drv.c b/drivers/char/drm/drm_drv.c
index f5b9b2480c14..26bec30ee86e 100644
--- a/drivers/char/drm/drm_drv.c
+++ b/drivers/char/drm/drm_drv.c
@@ -496,11 +496,14 @@ int drm_ioctl(struct inode *inode, struct file *filp,
496 (long)old_encode_dev(priv->head->device), 496 (long)old_encode_dev(priv->head->device),
497 priv->authenticated); 497 priv->authenticated);
498 498
499 if (nr < DRIVER_IOCTL_COUNT) 499 if ((nr >= DRIVER_IOCTL_COUNT) &&
500 ioctl = &drm_ioctls[nr]; 500 ((nr < DRM_COMMAND_BASE) || (nr >= DRM_COMMAND_END)))
501 else if ((nr >= DRM_COMMAND_BASE) 501 goto err_i1;
502 if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
502 && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) 503 && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls))
503 ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE]; 504 ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE];
505 else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE))
506 ioctl = &drm_ioctls[nr];
504 else 507 else
505 goto err_i1; 508 goto err_i1;
506 509
diff --git a/drivers/char/drm/drm_fops.c b/drivers/char/drm/drm_fops.c
index 898f47dafec0..3b159cab3bc8 100644
--- a/drivers/char/drm/drm_fops.c
+++ b/drivers/char/drm/drm_fops.c
@@ -46,6 +46,7 @@ static int drm_setup(drm_device_t * dev)
46 drm_local_map_t *map; 46 drm_local_map_t *map;
47 int i; 47 int i;
48 int ret; 48 int ret;
49 u32 sareapage;
49 50
50 if (dev->driver->firstopen) { 51 if (dev->driver->firstopen) {
51 ret = dev->driver->firstopen(dev); 52 ret = dev->driver->firstopen(dev);
@@ -56,7 +57,8 @@ static int drm_setup(drm_device_t * dev)
56 dev->magicfree.next = NULL; 57 dev->magicfree.next = NULL;
57 58
58 /* prebuild the SAREA */ 59 /* prebuild the SAREA */
59 i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM, _DRM_CONTAINS_LOCK, &map); 60 sareapage = max_t(unsigned, SAREA_MAX, PAGE_SIZE);
61 i = drm_addmap(dev, 0, sareapage, _DRM_SHM, _DRM_CONTAINS_LOCK, &map);
60 if (i != 0) 62 if (i != 0)
61 return i; 63 return i;
62 64
@@ -84,7 +86,7 @@ static int drm_setup(drm_device_t * dev)
84 INIT_LIST_HEAD(&dev->ctxlist->head); 86 INIT_LIST_HEAD(&dev->ctxlist->head);
85 87
86 dev->vmalist = NULL; 88 dev->vmalist = NULL;
87 dev->sigdata.lock = dev->lock.hw_lock = NULL; 89 dev->sigdata.lock = NULL;
88 init_waitqueue_head(&dev->lock.lock_queue); 90 init_waitqueue_head(&dev->lock.lock_queue);
89 dev->queue_count = 0; 91 dev->queue_count = 0;
90 dev->queue_reserved = 0; 92 dev->queue_reserved = 0;
@@ -354,58 +356,56 @@ int drm_release(struct inode *inode, struct file *filp)
354 current->pid, (long)old_encode_dev(priv->head->device), 356 current->pid, (long)old_encode_dev(priv->head->device),
355 dev->open_count); 357 dev->open_count);
356 358
357 if (priv->lock_count && dev->lock.hw_lock && 359 if (dev->driver->reclaim_buffers_locked && dev->lock.hw_lock) {
358 _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) && 360 if (drm_i_have_hw_lock(filp)) {
359 dev->lock.filp == filp) {
360 DRM_DEBUG("File %p released, freeing lock for context %d\n",
361 filp, _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
362
363 if (dev->driver->reclaim_buffers_locked)
364 dev->driver->reclaim_buffers_locked(dev, filp); 361 dev->driver->reclaim_buffers_locked(dev, filp);
365 362 } else {
366 drm_lock_free(dev, &dev->lock.hw_lock->lock, 363 unsigned long _end=jiffies + 3*DRM_HZ;
367 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); 364 int locked = 0;
368 365
369 /* FIXME: may require heavy-handed reset of 366 drm_idlelock_take(&dev->lock);
370 hardware at this point, possibly 367
371 processed via a callback to the X 368 /*
372 server. */ 369 * Wait for a while.
373 } else if (dev->driver->reclaim_buffers_locked && priv->lock_count 370 */
374 && dev->lock.hw_lock) { 371
375 /* The lock is required to reclaim buffers */ 372 do{
376 DECLARE_WAITQUEUE(entry, current); 373 spin_lock(&dev->lock.spinlock);
377 374 locked = dev->lock.idle_has_lock;
378 add_wait_queue(&dev->lock.lock_queue, &entry); 375 spin_unlock(&dev->lock.spinlock);
379 for (;;) { 376 if (locked)
380 __set_current_state(TASK_INTERRUPTIBLE); 377 break;
381 if (!dev->lock.hw_lock) { 378 schedule();
382 /* Device has been unregistered */ 379 } while (!time_after_eq(jiffies, _end));
383 retcode = -EINTR; 380
384 break; 381 if (!locked) {
382 DRM_ERROR("reclaim_buffers_locked() deadlock. Please rework this\n"
383 "\tdriver to use reclaim_buffers_idlelocked() instead.\n"
384 "\tI will go on reclaiming the buffers anyway.\n");
385 } 385 }
386 if (drm_lock_take(&dev->lock.hw_lock->lock, 386
387 DRM_KERNEL_CONTEXT)) {
388 dev->lock.filp = filp;
389 dev->lock.lock_time = jiffies;
390 atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
391 break; /* Got lock */
392 }
393 /* Contention */
394 schedule();
395 if (signal_pending(current)) {
396 retcode = -ERESTARTSYS;
397 break;
398 }
399 }
400 __set_current_state(TASK_RUNNING);
401 remove_wait_queue(&dev->lock.lock_queue, &entry);
402 if (!retcode) {
403 dev->driver->reclaim_buffers_locked(dev, filp); 387 dev->driver->reclaim_buffers_locked(dev, filp);
404 drm_lock_free(dev, &dev->lock.hw_lock->lock, 388 drm_idlelock_release(&dev->lock);
405 DRM_KERNEL_CONTEXT);
406 } 389 }
407 } 390 }
408 391
392 if (dev->driver->reclaim_buffers_idlelocked && dev->lock.hw_lock) {
393
394 drm_idlelock_take(&dev->lock);
395 dev->driver->reclaim_buffers_idlelocked(dev, filp);
396 drm_idlelock_release(&dev->lock);
397
398 }
399
400 if (drm_i_have_hw_lock(filp)) {
401 DRM_DEBUG("File %p released, freeing lock for context %d\n",
402 filp, _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
403
404 drm_lock_free(&dev->lock,
405 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
406 }
407
408
409 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) && 409 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
410 !dev->driver->reclaim_buffers_locked) { 410 !dev->driver->reclaim_buffers_locked) {
411 dev->driver->reclaim_buffers(dev, filp); 411 dev->driver->reclaim_buffers(dev, filp);
diff --git a/drivers/char/drm/drm_hashtab.c b/drivers/char/drm/drm_hashtab.c
index a0b2d6802ae4..31acb621dcce 100644
--- a/drivers/char/drm/drm_hashtab.c
+++ b/drivers/char/drm/drm_hashtab.c
@@ -43,7 +43,16 @@ int drm_ht_create(drm_open_hash_t *ht, unsigned int order)
43 ht->size = 1 << order; 43 ht->size = 1 << order;
44 ht->order = order; 44 ht->order = order;
45 ht->fill = 0; 45 ht->fill = 0;
46 ht->table = vmalloc(ht->size*sizeof(*ht->table)); 46 ht->table = NULL;
47 ht->use_vmalloc = ((ht->size * sizeof(*ht->table)) > PAGE_SIZE);
48 if (!ht->use_vmalloc) {
49 ht->table = drm_calloc(ht->size, sizeof(*ht->table),
50 DRM_MEM_HASHTAB);
51 }
52 if (!ht->table) {
53 ht->use_vmalloc = 1;
54 ht->table = vmalloc(ht->size*sizeof(*ht->table));
55 }
47 if (!ht->table) { 56 if (!ht->table) {
48 DRM_ERROR("Out of memory for hash table\n"); 57 DRM_ERROR("Out of memory for hash table\n");
49 return -ENOMEM; 58 return -ENOMEM;
@@ -183,7 +192,11 @@ int drm_ht_remove_item(drm_open_hash_t *ht, drm_hash_item_t *item)
183void drm_ht_remove(drm_open_hash_t *ht) 192void drm_ht_remove(drm_open_hash_t *ht)
184{ 193{
185 if (ht->table) { 194 if (ht->table) {
186 vfree(ht->table); 195 if (ht->use_vmalloc)
196 vfree(ht->table);
197 else
198 drm_free(ht->table, ht->size * sizeof(*ht->table),
199 DRM_MEM_HASHTAB);
187 ht->table = NULL; 200 ht->table = NULL;
188 } 201 }
189} 202}
diff --git a/drivers/char/drm/drm_hashtab.h b/drivers/char/drm/drm_hashtab.h
index 40afec05bff8..613091c970af 100644
--- a/drivers/char/drm/drm_hashtab.h
+++ b/drivers/char/drm/drm_hashtab.h
@@ -47,6 +47,7 @@ typedef struct drm_open_hash{
47 unsigned int order; 47 unsigned int order;
48 unsigned int fill; 48 unsigned int fill;
49 struct hlist_head *table; 49 struct hlist_head *table;
50 int use_vmalloc;
50} drm_open_hash_t; 51} drm_open_hash_t;
51 52
52 53
diff --git a/drivers/char/drm/drm_irq.c b/drivers/char/drm/drm_irq.c
index 9d00c51fe2c4..2e75331fd83e 100644
--- a/drivers/char/drm/drm_irq.c
+++ b/drivers/char/drm/drm_irq.c
@@ -424,7 +424,7 @@ static void drm_locked_tasklet_func(unsigned long data)
424 spin_lock_irqsave(&dev->tasklet_lock, irqflags); 424 spin_lock_irqsave(&dev->tasklet_lock, irqflags);
425 425
426 if (!dev->locked_tasklet_func || 426 if (!dev->locked_tasklet_func ||
427 !drm_lock_take(&dev->lock.hw_lock->lock, 427 !drm_lock_take(&dev->lock,
428 DRM_KERNEL_CONTEXT)) { 428 DRM_KERNEL_CONTEXT)) {
429 spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); 429 spin_unlock_irqrestore(&dev->tasklet_lock, irqflags);
430 return; 430 return;
@@ -435,7 +435,7 @@ static void drm_locked_tasklet_func(unsigned long data)
435 435
436 dev->locked_tasklet_func(dev); 436 dev->locked_tasklet_func(dev);
437 437
438 drm_lock_free(dev, &dev->lock.hw_lock->lock, 438 drm_lock_free(&dev->lock,
439 DRM_KERNEL_CONTEXT); 439 DRM_KERNEL_CONTEXT);
440 440
441 dev->locked_tasklet_func = NULL; 441 dev->locked_tasklet_func = NULL;
diff --git a/drivers/char/drm/drm_lock.c b/drivers/char/drm/drm_lock.c
index e9993ba461a2..befd1af19dfe 100644
--- a/drivers/char/drm/drm_lock.c
+++ b/drivers/char/drm/drm_lock.c
@@ -35,9 +35,6 @@
35 35
36#include "drmP.h" 36#include "drmP.h"
37 37
38static int drm_lock_transfer(drm_device_t * dev,
39 __volatile__ unsigned int *lock,
40 unsigned int context);
41static int drm_notifier(void *priv); 38static int drm_notifier(void *priv);
42 39
43/** 40/**
@@ -80,6 +77,9 @@ int drm_lock(struct inode *inode, struct file *filp,
80 return -EINVAL; 77 return -EINVAL;
81 78
82 add_wait_queue(&dev->lock.lock_queue, &entry); 79 add_wait_queue(&dev->lock.lock_queue, &entry);
80 spin_lock(&dev->lock.spinlock);
81 dev->lock.user_waiters++;
82 spin_unlock(&dev->lock.spinlock);
83 for (;;) { 83 for (;;) {
84 __set_current_state(TASK_INTERRUPTIBLE); 84 __set_current_state(TASK_INTERRUPTIBLE);
85 if (!dev->lock.hw_lock) { 85 if (!dev->lock.hw_lock) {
@@ -87,7 +87,7 @@ int drm_lock(struct inode *inode, struct file *filp,
87 ret = -EINTR; 87 ret = -EINTR;
88 break; 88 break;
89 } 89 }
90 if (drm_lock_take(&dev->lock.hw_lock->lock, lock.context)) { 90 if (drm_lock_take(&dev->lock, lock.context)) {
91 dev->lock.filp = filp; 91 dev->lock.filp = filp;
92 dev->lock.lock_time = jiffies; 92 dev->lock.lock_time = jiffies;
93 atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); 93 atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
@@ -101,12 +101,14 @@ int drm_lock(struct inode *inode, struct file *filp,
101 break; 101 break;
102 } 102 }
103 } 103 }
104 spin_lock(&dev->lock.spinlock);
105 dev->lock.user_waiters--;
106 spin_unlock(&dev->lock.spinlock);
104 __set_current_state(TASK_RUNNING); 107 __set_current_state(TASK_RUNNING);
105 remove_wait_queue(&dev->lock.lock_queue, &entry); 108 remove_wait_queue(&dev->lock.lock_queue, &entry);
106 109
107 DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock"); 110 DRM_DEBUG( "%d %s\n", lock.context, ret ? "interrupted" : "has lock" );
108 if (ret) 111 if (ret) return ret;
109 return ret;
110 112
111 sigemptyset(&dev->sigmask); 113 sigemptyset(&dev->sigmask);
112 sigaddset(&dev->sigmask, SIGSTOP); 114 sigaddset(&dev->sigmask, SIGSTOP);
@@ -127,14 +129,12 @@ int drm_lock(struct inode *inode, struct file *filp,
127 } 129 }
128 } 130 }
129 131
130 /* dev->driver->kernel_context_switch isn't used by any of the x86
131 * drivers but is used by the Sparc driver.
132 */
133 if (dev->driver->kernel_context_switch && 132 if (dev->driver->kernel_context_switch &&
134 dev->last_context != lock.context) { 133 dev->last_context != lock.context) {
135 dev->driver->kernel_context_switch(dev, dev->last_context, 134 dev->driver->kernel_context_switch(dev, dev->last_context,
136 lock.context); 135 lock.context);
137 } 136 }
137
138 return 0; 138 return 0;
139} 139}
140 140
@@ -184,12 +184,8 @@ int drm_unlock(struct inode *inode, struct file *filp,
184 if (dev->driver->kernel_context_switch_unlock) 184 if (dev->driver->kernel_context_switch_unlock)
185 dev->driver->kernel_context_switch_unlock(dev); 185 dev->driver->kernel_context_switch_unlock(dev);
186 else { 186 else {
187 drm_lock_transfer(dev, &dev->lock.hw_lock->lock, 187 if (drm_lock_free(&dev->lock,lock.context)) {
188 DRM_KERNEL_CONTEXT); 188 /* FIXME: Should really bail out here. */
189
190 if (drm_lock_free(dev, &dev->lock.hw_lock->lock,
191 DRM_KERNEL_CONTEXT)) {
192 DRM_ERROR("\n");
193 } 189 }
194 } 190 }
195 191
@@ -206,18 +202,26 @@ int drm_unlock(struct inode *inode, struct file *filp,
206 * 202 *
207 * Attempt to mark the lock as held by the given context, via the \p cmpxchg instruction. 203 * Attempt to mark the lock as held by the given context, via the \p cmpxchg instruction.
208 */ 204 */
209int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context) 205int drm_lock_take(drm_lock_data_t *lock_data,
206 unsigned int context)
210{ 207{
211 unsigned int old, new, prev; 208 unsigned int old, new, prev;
209 volatile unsigned int *lock = &lock_data->hw_lock->lock;
212 210
211 spin_lock(&lock_data->spinlock);
213 do { 212 do {
214 old = *lock; 213 old = *lock;
215 if (old & _DRM_LOCK_HELD) 214 if (old & _DRM_LOCK_HELD)
216 new = old | _DRM_LOCK_CONT; 215 new = old | _DRM_LOCK_CONT;
217 else 216 else {
218 new = context | _DRM_LOCK_HELD; 217 new = context | _DRM_LOCK_HELD |
218 ((lock_data->user_waiters + lock_data->kernel_waiters > 1) ?
219 _DRM_LOCK_CONT : 0);
220 }
219 prev = cmpxchg(lock, old, new); 221 prev = cmpxchg(lock, old, new);
220 } while (prev != old); 222 } while (prev != old);
223 spin_unlock(&lock_data->spinlock);
224
221 if (_DRM_LOCKING_CONTEXT(old) == context) { 225 if (_DRM_LOCKING_CONTEXT(old) == context) {
222 if (old & _DRM_LOCK_HELD) { 226 if (old & _DRM_LOCK_HELD) {
223 if (context != DRM_KERNEL_CONTEXT) { 227 if (context != DRM_KERNEL_CONTEXT) {
@@ -227,7 +231,8 @@ int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context)
227 return 0; 231 return 0;
228 } 232 }
229 } 233 }
230 if (new == (context | _DRM_LOCK_HELD)) { 234
235 if ((_DRM_LOCKING_CONTEXT(new)) == context && (new & _DRM_LOCK_HELD)) {
231 /* Have lock */ 236 /* Have lock */
232 return 1; 237 return 1;
233 } 238 }
@@ -246,13 +251,13 @@ int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context)
246 * Resets the lock file pointer. 251 * Resets the lock file pointer.
247 * Marks the lock as held by the given context, via the \p cmpxchg instruction. 252 * Marks the lock as held by the given context, via the \p cmpxchg instruction.
248 */ 253 */
249static int drm_lock_transfer(drm_device_t * dev, 254static int drm_lock_transfer(drm_lock_data_t *lock_data,
250 __volatile__ unsigned int *lock,
251 unsigned int context) 255 unsigned int context)
252{ 256{
253 unsigned int old, new, prev; 257 unsigned int old, new, prev;
258 volatile unsigned int *lock = &lock_data->hw_lock->lock;
254 259
255 dev->lock.filp = NULL; 260 lock_data->filp = NULL;
256 do { 261 do {
257 old = *lock; 262 old = *lock;
258 new = context | _DRM_LOCK_HELD; 263 new = context | _DRM_LOCK_HELD;
@@ -272,23 +277,32 @@ static int drm_lock_transfer(drm_device_t * dev,
272 * Marks the lock as not held, via the \p cmpxchg instruction. Wakes any task 277 * Marks the lock as not held, via the \p cmpxchg instruction. Wakes any task
273 * waiting on the lock queue. 278 * waiting on the lock queue.
274 */ 279 */
275int drm_lock_free(drm_device_t * dev, 280int drm_lock_free(drm_lock_data_t *lock_data, unsigned int context)
276 __volatile__ unsigned int *lock, unsigned int context)
277{ 281{
278 unsigned int old, new, prev; 282 unsigned int old, new, prev;
283 volatile unsigned int *lock = &lock_data->hw_lock->lock;
284
285 spin_lock(&lock_data->spinlock);
286 if (lock_data->kernel_waiters != 0) {
287 drm_lock_transfer(lock_data, 0);
288 lock_data->idle_has_lock = 1;
289 spin_unlock(&lock_data->spinlock);
290 return 1;
291 }
292 spin_unlock(&lock_data->spinlock);
279 293
280 dev->lock.filp = NULL;
281 do { 294 do {
282 old = *lock; 295 old = *lock;
283 new = 0; 296 new = _DRM_LOCKING_CONTEXT(old);
284 prev = cmpxchg(lock, old, new); 297 prev = cmpxchg(lock, old, new);
285 } while (prev != old); 298 } while (prev != old);
299
286 if (_DRM_LOCK_IS_HELD(old) && _DRM_LOCKING_CONTEXT(old) != context) { 300 if (_DRM_LOCK_IS_HELD(old) && _DRM_LOCKING_CONTEXT(old) != context) {
287 DRM_ERROR("%d freed heavyweight lock held by %d\n", 301 DRM_ERROR("%d freed heavyweight lock held by %d\n",
288 context, _DRM_LOCKING_CONTEXT(old)); 302 context, _DRM_LOCKING_CONTEXT(old));
289 return 1; 303 return 1;
290 } 304 }
291 wake_up_interruptible(&dev->lock.lock_queue); 305 wake_up_interruptible(&lock_data->lock_queue);
292 return 0; 306 return 0;
293} 307}
294 308
@@ -322,3 +336,67 @@ static int drm_notifier(void *priv)
322 } while (prev != old); 336 } while (prev != old);
323 return 0; 337 return 0;
324} 338}
339
340/**
341 * This function returns immediately and takes the hw lock
342 * with the kernel context if it is free, otherwise it gets the highest priority when and if
343 * it is eventually released.
344 *
345 * This guarantees that the kernel will _eventually_ have the lock _unless_ it is held
346 * by a blocked process. (In the latter case an explicit wait for the hardware lock would cause
347 * a deadlock, which is why the "idlelock" was invented).
348 *
349 * This should be sufficient to wait for GPU idle without
350 * having to worry about starvation.
351 */
352
353void drm_idlelock_take(drm_lock_data_t *lock_data)
354{
355 int ret = 0;
356
357 spin_lock(&lock_data->spinlock);
358 lock_data->kernel_waiters++;
359 if (!lock_data->idle_has_lock) {
360
361 spin_unlock(&lock_data->spinlock);
362 ret = drm_lock_take(lock_data, DRM_KERNEL_CONTEXT);
363 spin_lock(&lock_data->spinlock);
364
365 if (ret == 1)
366 lock_data->idle_has_lock = 1;
367 }
368 spin_unlock(&lock_data->spinlock);
369}
370EXPORT_SYMBOL(drm_idlelock_take);
371
372void drm_idlelock_release(drm_lock_data_t *lock_data)
373{
374 unsigned int old, prev;
375 volatile unsigned int *lock = &lock_data->hw_lock->lock;
376
377 spin_lock(&lock_data->spinlock);
378 if (--lock_data->kernel_waiters == 0) {
379 if (lock_data->idle_has_lock) {
380 do {
381 old = *lock;
382 prev = cmpxchg(lock, old, DRM_KERNEL_CONTEXT);
383 } while (prev != old);
384 wake_up_interruptible(&lock_data->lock_queue);
385 lock_data->idle_has_lock = 0;
386 }
387 }
388 spin_unlock(&lock_data->spinlock);
389}
390EXPORT_SYMBOL(drm_idlelock_release);
391
392
393int drm_i_have_hw_lock(struct file *filp)
394{
395 DRM_DEVICE;
396
397 return (priv->lock_count && dev->lock.hw_lock &&
398 _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) &&
399 dev->lock.filp == filp);
400}
401
402EXPORT_SYMBOL(drm_i_have_hw_lock);
diff --git a/drivers/char/drm/drm_mm.c b/drivers/char/drm/drm_mm.c
index 9b46b85027d0..2ec1d9f26264 100644
--- a/drivers/char/drm/drm_mm.c
+++ b/drivers/char/drm/drm_mm.c
@@ -274,7 +274,6 @@ int drm_mm_init(drm_mm_t * mm, unsigned long start, unsigned long size)
274 return drm_mm_create_tail_node(mm, start, size); 274 return drm_mm_create_tail_node(mm, start, size);
275} 275}
276 276
277EXPORT_SYMBOL(drm_mm_init);
278 277
279void drm_mm_takedown(drm_mm_t * mm) 278void drm_mm_takedown(drm_mm_t * mm)
280{ 279{
@@ -295,4 +294,3 @@ void drm_mm_takedown(drm_mm_t * mm)
295 drm_free(entry, sizeof(*entry), DRM_MEM_MM); 294 drm_free(entry, sizeof(*entry), DRM_MEM_MM);
296} 295}
297 296
298EXPORT_SYMBOL(drm_mm_takedown);
diff --git a/drivers/char/drm/drm_pciids.h b/drivers/char/drm/drm_pciids.h
index ad54b845978b..01cf482d2d00 100644
--- a/drivers/char/drm/drm_pciids.h
+++ b/drivers/char/drm/drm_pciids.h
@@ -230,10 +230,10 @@
230 {0x1106, 0x7205, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ 230 {0x1106, 0x7205, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
231 {0x1106, 0x3108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ 231 {0x1106, 0x3108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
232 {0x1106, 0x3304, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ 232 {0x1106, 0x3304, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
233 {0x1106, 0x3157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
234 {0x1106, 0x3344, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ 233 {0x1106, 0x3344, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
235 {0x1106, 0x3343, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ 234 {0x1106, 0x3343, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
236 {0x1106, 0x3230, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VIA_DX9_0}, \ 235 {0x1106, 0x3230, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VIA_DX9_0}, \
236 {0x1106, 0x3157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VIA_PRO_GROUP_A}, \
237 {0, 0, 0} 237 {0, 0, 0}
238 238
239#define i810_PCI_IDS \ 239#define i810_PCI_IDS \
@@ -296,5 +296,6 @@
296 {0x8086, 0x2982, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ 296 {0x8086, 0x2982, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
297 {0x8086, 0x2992, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ 297 {0x8086, 0x2992, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
298 {0x8086, 0x29a2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ 298 {0x8086, 0x29a2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
299 {0x8086, 0x2a02, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
299 {0, 0, 0} 300 {0, 0, 0}
300 301
diff --git a/drivers/char/drm/drm_proc.c b/drivers/char/drm/drm_proc.c
index 7fd0da712142..b204498d1a28 100644
--- a/drivers/char/drm/drm_proc.c
+++ b/drivers/char/drm/drm_proc.c
@@ -72,7 +72,7 @@ static struct drm_proc_list {
72#endif 72#endif
73}; 73};
74 74
75#define DRM_PROC_ENTRIES (sizeof(drm_proc_list)/sizeof(drm_proc_list[0])) 75#define DRM_PROC_ENTRIES ARRAY_SIZE(drm_proc_list)
76 76
77/** 77/**
78 * Initialize the DRI proc filesystem for a device. 78 * Initialize the DRI proc filesystem for a device.
diff --git a/drivers/char/drm/drm_stub.c b/drivers/char/drm/drm_stub.c
index 120d10256feb..19408adcc775 100644
--- a/drivers/char/drm/drm_stub.c
+++ b/drivers/char/drm/drm_stub.c
@@ -62,6 +62,7 @@ static int drm_fill_in_dev(drm_device_t * dev, struct pci_dev *pdev,
62 spin_lock_init(&dev->count_lock); 62 spin_lock_init(&dev->count_lock);
63 spin_lock_init(&dev->drw_lock); 63 spin_lock_init(&dev->drw_lock);
64 spin_lock_init(&dev->tasklet_lock); 64 spin_lock_init(&dev->tasklet_lock);
65 spin_lock_init(&dev->lock.spinlock);
65 init_timer(&dev->timer); 66 init_timer(&dev->timer);
66 mutex_init(&dev->struct_mutex); 67 mutex_init(&dev->struct_mutex);
67 mutex_init(&dev->ctxlist_mutex); 68 mutex_init(&dev->ctxlist_mutex);
diff --git a/drivers/char/drm/drm_vm.c b/drivers/char/drm/drm_vm.c
index 54a632848955..35540cfb43dd 100644
--- a/drivers/char/drm/drm_vm.c
+++ b/drivers/char/drm/drm_vm.c
@@ -41,6 +41,30 @@
41static void drm_vm_open(struct vm_area_struct *vma); 41static void drm_vm_open(struct vm_area_struct *vma);
42static void drm_vm_close(struct vm_area_struct *vma); 42static void drm_vm_close(struct vm_area_struct *vma);
43 43
44static pgprot_t drm_io_prot(uint32_t map_type, struct vm_area_struct *vma)
45{
46 pgprot_t tmp = vm_get_page_prot(vma->vm_flags);
47
48#if defined(__i386__) || defined(__x86_64__)
49 if (boot_cpu_data.x86 > 3 && map_type != _DRM_AGP) {
50 pgprot_val(tmp) |= _PAGE_PCD;
51 pgprot_val(tmp) &= ~_PAGE_PWT;
52 }
53#elif defined(__powerpc__)
54 pgprot_val(tmp) |= _PAGE_NO_CACHE;
55 if (map_type == _DRM_REGISTERS)
56 pgprot_val(tmp) |= _PAGE_GUARDED;
57#endif
58#if defined(__ia64__)
59 if (efi_range_is_wc(vma->vm_start, vma->vm_end -
60 vma->vm_start))
61 tmp = pgprot_writecombine(tmp);
62 else
63 tmp = pgprot_noncached(tmp);
64#endif
65 return tmp;
66}
67
44/** 68/**
45 * \c nopage method for AGP virtual memory. 69 * \c nopage method for AGP virtual memory.
46 * 70 *
@@ -151,8 +175,7 @@ static __inline__ struct page *drm_do_vm_shm_nopage(struct vm_area_struct *vma,
151 175
152 offset = address - vma->vm_start; 176 offset = address - vma->vm_start;
153 i = (unsigned long)map->handle + offset; 177 i = (unsigned long)map->handle + offset;
154 page = (map->type == _DRM_CONSISTENT) ? 178 page = vmalloc_to_page((void *)i);
155 virt_to_page((void *)i) : vmalloc_to_page((void *)i);
156 if (!page) 179 if (!page)
157 return NOPAGE_SIGBUS; 180 return NOPAGE_SIGBUS;
158 get_page(page); 181 get_page(page);
@@ -389,7 +412,7 @@ static struct vm_operations_struct drm_vm_sg_ops = {
389 * Create a new drm_vma_entry structure as the \p vma private data entry and 412 * Create a new drm_vma_entry structure as the \p vma private data entry and
390 * add it to drm_device::vmalist. 413 * add it to drm_device::vmalist.
391 */ 414 */
392static void drm_vm_open(struct vm_area_struct *vma) 415static void drm_vm_open_locked(struct vm_area_struct *vma)
393{ 416{
394 drm_file_t *priv = vma->vm_file->private_data; 417 drm_file_t *priv = vma->vm_file->private_data;
395 drm_device_t *dev = priv->head->dev; 418 drm_device_t *dev = priv->head->dev;
@@ -401,15 +424,23 @@ static void drm_vm_open(struct vm_area_struct *vma)
401 424
402 vma_entry = drm_alloc(sizeof(*vma_entry), DRM_MEM_VMAS); 425 vma_entry = drm_alloc(sizeof(*vma_entry), DRM_MEM_VMAS);
403 if (vma_entry) { 426 if (vma_entry) {
404 mutex_lock(&dev->struct_mutex);
405 vma_entry->vma = vma; 427 vma_entry->vma = vma;
406 vma_entry->next = dev->vmalist; 428 vma_entry->next = dev->vmalist;
407 vma_entry->pid = current->pid; 429 vma_entry->pid = current->pid;
408 dev->vmalist = vma_entry; 430 dev->vmalist = vma_entry;
409 mutex_unlock(&dev->struct_mutex);
410 } 431 }
411} 432}
412 433
434static void drm_vm_open(struct vm_area_struct *vma)
435{
436 drm_file_t *priv = vma->vm_file->private_data;
437 drm_device_t *dev = priv->head->dev;
438
439 mutex_lock(&dev->struct_mutex);
440 drm_vm_open_locked(vma);
441 mutex_unlock(&dev->struct_mutex);
442}
443
413/** 444/**
414 * \c close method for all virtual memory types. 445 * \c close method for all virtual memory types.
415 * 446 *
@@ -460,7 +491,6 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
460 drm_device_dma_t *dma; 491 drm_device_dma_t *dma;
461 unsigned long length = vma->vm_end - vma->vm_start; 492 unsigned long length = vma->vm_end - vma->vm_start;
462 493
463 lock_kernel();
464 dev = priv->head->dev; 494 dev = priv->head->dev;
465 dma = dev->dma; 495 dma = dev->dma;
466 DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n", 496 DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n",
@@ -468,10 +498,8 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
468 498
469 /* Length must match exact page count */ 499 /* Length must match exact page count */
470 if (!dma || (length >> PAGE_SHIFT) != dma->page_count) { 500 if (!dma || (length >> PAGE_SHIFT) != dma->page_count) {
471 unlock_kernel();
472 return -EINVAL; 501 return -EINVAL;
473 } 502 }
474 unlock_kernel();
475 503
476 if (!capable(CAP_SYS_ADMIN) && 504 if (!capable(CAP_SYS_ADMIN) &&
477 (dma->flags & _DRM_DMA_USE_PCI_RO)) { 505 (dma->flags & _DRM_DMA_USE_PCI_RO)) {
@@ -494,7 +522,7 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
494 vma->vm_flags |= VM_RESERVED; /* Don't swap */ 522 vma->vm_flags |= VM_RESERVED; /* Don't swap */
495 523
496 vma->vm_file = filp; /* Needed for drm_vm_open() */ 524 vma->vm_file = filp; /* Needed for drm_vm_open() */
497 drm_vm_open(vma); 525 drm_vm_open_locked(vma);
498 return 0; 526 return 0;
499} 527}
500 528
@@ -529,7 +557,7 @@ EXPORT_SYMBOL(drm_core_get_reg_ofs);
529 * according to the mapping type and remaps the pages. Finally sets the file 557 * according to the mapping type and remaps the pages. Finally sets the file
530 * pointer and calls vm_open(). 558 * pointer and calls vm_open().
531 */ 559 */
532int drm_mmap(struct file *filp, struct vm_area_struct *vma) 560static int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
533{ 561{
534 drm_file_t *priv = filp->private_data; 562 drm_file_t *priv = filp->private_data;
535 drm_device_t *dev = priv->head->dev; 563 drm_device_t *dev = priv->head->dev;
@@ -565,7 +593,7 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
565 return -EPERM; 593 return -EPERM;
566 594
567 /* Check for valid size. */ 595 /* Check for valid size. */
568 if (map->size != vma->vm_end - vma->vm_start) 596 if (map->size < vma->vm_end - vma->vm_start)
569 return -EINVAL; 597 return -EINVAL;
570 598
571 if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) { 599 if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) {
@@ -600,37 +628,16 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
600 /* fall through to _DRM_FRAME_BUFFER... */ 628 /* fall through to _DRM_FRAME_BUFFER... */
601 case _DRM_FRAME_BUFFER: 629 case _DRM_FRAME_BUFFER:
602 case _DRM_REGISTERS: 630 case _DRM_REGISTERS:
603#if defined(__i386__) || defined(__x86_64__)
604 if (boot_cpu_data.x86 > 3 && map->type != _DRM_AGP) {
605 pgprot_val(vma->vm_page_prot) |= _PAGE_PCD;
606 pgprot_val(vma->vm_page_prot) &= ~_PAGE_PWT;
607 }
608#elif defined(__powerpc__)
609 pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
610 if (map->type == _DRM_REGISTERS)
611 pgprot_val(vma->vm_page_prot) |= _PAGE_GUARDED;
612#endif
613 vma->vm_flags |= VM_IO; /* not in core dump */
614#if defined(__ia64__)
615 if (efi_range_is_wc(vma->vm_start, vma->vm_end - vma->vm_start))
616 vma->vm_page_prot =
617 pgprot_writecombine(vma->vm_page_prot);
618 else
619 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
620#endif
621 offset = dev->driver->get_reg_ofs(dev); 631 offset = dev->driver->get_reg_ofs(dev);
632 vma->vm_flags |= VM_IO; /* not in core dump */
633 vma->vm_page_prot = drm_io_prot(map->type, vma);
622#ifdef __sparc__ 634#ifdef __sparc__
623 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 635 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
636#endif
624 if (io_remap_pfn_range(vma, vma->vm_start, 637 if (io_remap_pfn_range(vma, vma->vm_start,
625 (map->offset + offset) >> PAGE_SHIFT, 638 (map->offset + offset) >> PAGE_SHIFT,
626 vma->vm_end - vma->vm_start, 639 vma->vm_end - vma->vm_start,
627 vma->vm_page_prot)) 640 vma->vm_page_prot))
628#else
629 if (io_remap_pfn_range(vma, vma->vm_start,
630 (map->offset + offset) >> PAGE_SHIFT,
631 vma->vm_end - vma->vm_start,
632 vma->vm_page_prot))
633#endif
634 return -EAGAIN; 641 return -EAGAIN;
635 DRM_DEBUG(" Type = %d; start = 0x%lx, end = 0x%lx," 642 DRM_DEBUG(" Type = %d; start = 0x%lx, end = 0x%lx,"
636 " offset = 0x%lx\n", 643 " offset = 0x%lx\n",
@@ -638,10 +645,15 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
638 vma->vm_start, vma->vm_end, map->offset + offset); 645 vma->vm_start, vma->vm_end, map->offset + offset);
639 vma->vm_ops = &drm_vm_ops; 646 vma->vm_ops = &drm_vm_ops;
640 break; 647 break;
641 case _DRM_SHM:
642 case _DRM_CONSISTENT: 648 case _DRM_CONSISTENT:
643 /* Consistent memory is really like shared memory. It's only 649 /* Consistent memory is really like shared memory. But
644 * allocate in a different way */ 650 * it's allocated in a different way, so avoid nopage */
651 if (remap_pfn_range(vma, vma->vm_start,
652 page_to_pfn(virt_to_page(map->handle)),
653 vma->vm_end - vma->vm_start, vma->vm_page_prot))
654 return -EAGAIN;
655 /* fall through to _DRM_SHM */
656 case _DRM_SHM:
645 vma->vm_ops = &drm_vm_shm_ops; 657 vma->vm_ops = &drm_vm_shm_ops;
646 vma->vm_private_data = (void *)map; 658 vma->vm_private_data = (void *)map;
647 /* Don't let this area swap. Change when 659 /* Don't let this area swap. Change when
@@ -659,8 +671,20 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
659 vma->vm_flags |= VM_RESERVED; /* Don't swap */ 671 vma->vm_flags |= VM_RESERVED; /* Don't swap */
660 672
661 vma->vm_file = filp; /* Needed for drm_vm_open() */ 673 vma->vm_file = filp; /* Needed for drm_vm_open() */
662 drm_vm_open(vma); 674 drm_vm_open_locked(vma);
663 return 0; 675 return 0;
664} 676}
665 677
678int drm_mmap(struct file *filp, struct vm_area_struct *vma)
679{
680 drm_file_t *priv = filp->private_data;
681 drm_device_t *dev = priv->head->dev;
682 int ret;
683
684 mutex_lock(&dev->struct_mutex);
685 ret = drm_mmap_locked(filp, vma);
686 mutex_unlock(&dev->struct_mutex);
687
688 return ret;
689}
666EXPORT_SYMBOL(drm_mmap); 690EXPORT_SYMBOL(drm_mmap);
diff --git a/drivers/char/drm/i915_dma.c b/drivers/char/drm/i915_dma.c
index 9354ce3b0093..1ba15d9a171a 100644
--- a/drivers/char/drm/i915_dma.c
+++ b/drivers/char/drm/i915_dma.c
@@ -34,7 +34,8 @@
34#define IS_I965G(dev) (dev->pci_device == 0x2972 || \ 34#define IS_I965G(dev) (dev->pci_device == 0x2972 || \
35 dev->pci_device == 0x2982 || \ 35 dev->pci_device == 0x2982 || \
36 dev->pci_device == 0x2992 || \ 36 dev->pci_device == 0x2992 || \
37 dev->pci_device == 0x29A2) 37 dev->pci_device == 0x29A2 || \
38 dev->pci_device == 0x2A02)
38 39
39/* Really want an OS-independent resettable timer. Would like to have 40/* Really want an OS-independent resettable timer. Would like to have
40 * this loop run for (eg) 3 sec, but have the timer reset every time 41 * this loop run for (eg) 3 sec, but have the timer reset every time
diff --git a/drivers/char/drm/radeon_cp.c b/drivers/char/drm/radeon_cp.c
index 5ed965688293..c1850ecac302 100644
--- a/drivers/char/drm/radeon_cp.c
+++ b/drivers/char/drm/radeon_cp.c
@@ -1560,8 +1560,8 @@ static int radeon_do_init_cp(drm_device_t * dev, drm_radeon_init_t * init)
1560 if (dev_priv->flags & RADEON_IS_AGP) { 1560 if (dev_priv->flags & RADEON_IS_AGP) {
1561 base = dev->agp->base; 1561 base = dev->agp->base;
1562 /* Check if valid */ 1562 /* Check if valid */
1563 if ((base + dev_priv->gart_size) > dev_priv->fb_location && 1563 if ((base + dev_priv->gart_size - 1) >= dev_priv->fb_location &&
1564 base < (dev_priv->fb_location + dev_priv->fb_size)) { 1564 base < (dev_priv->fb_location + dev_priv->fb_size - 1)) {
1565 DRM_INFO("Can't use AGP base @0x%08lx, won't fit\n", 1565 DRM_INFO("Can't use AGP base @0x%08lx, won't fit\n",
1566 dev->agp->base); 1566 dev->agp->base);
1567 base = 0; 1567 base = 0;
@@ -1571,8 +1571,8 @@ static int radeon_do_init_cp(drm_device_t * dev, drm_radeon_init_t * init)
1571 /* If not or if AGP is at 0 (Macs), try to put it elsewhere */ 1571 /* If not or if AGP is at 0 (Macs), try to put it elsewhere */
1572 if (base == 0) { 1572 if (base == 0) {
1573 base = dev_priv->fb_location + dev_priv->fb_size; 1573 base = dev_priv->fb_location + dev_priv->fb_size;
1574 if (((base + dev_priv->gart_size) & 0xfffffffful) 1574 if (base < dev_priv->fb_location ||
1575 < base) 1575 ((base + dev_priv->gart_size) & 0xfffffffful) < base)
1576 base = dev_priv->fb_location 1576 base = dev_priv->fb_location
1577 - dev_priv->gart_size; 1577 - dev_priv->gart_size;
1578 } 1578 }
diff --git a/drivers/char/drm/sis_drv.c b/drivers/char/drm/sis_drv.c
index 3d5b3218b6ff..690e0af8e7c2 100644
--- a/drivers/char/drm/sis_drv.c
+++ b/drivers/char/drm/sis_drv.c
@@ -71,7 +71,7 @@ static struct drm_driver driver = {
71 .context_dtor = NULL, 71 .context_dtor = NULL,
72 .dma_quiescent = sis_idle, 72 .dma_quiescent = sis_idle,
73 .reclaim_buffers = NULL, 73 .reclaim_buffers = NULL,
74 .reclaim_buffers_locked = sis_reclaim_buffers_locked, 74 .reclaim_buffers_idlelocked = sis_reclaim_buffers_locked,
75 .lastclose = sis_lastclose, 75 .lastclose = sis_lastclose,
76 .get_map_ofs = drm_core_get_map_ofs, 76 .get_map_ofs = drm_core_get_map_ofs,
77 .get_reg_ofs = drm_core_get_reg_ofs, 77 .get_reg_ofs = drm_core_get_reg_ofs,
diff --git a/drivers/char/drm/via_drv.c b/drivers/char/drm/via_drv.c
index bb9dde8b1911..2d4957ab256a 100644
--- a/drivers/char/drm/via_drv.c
+++ b/drivers/char/drm/via_drv.c
@@ -52,7 +52,8 @@ static struct drm_driver driver = {
52 .dma_quiescent = via_driver_dma_quiescent, 52 .dma_quiescent = via_driver_dma_quiescent,
53 .dri_library_name = dri_library_name, 53 .dri_library_name = dri_library_name,
54 .reclaim_buffers = drm_core_reclaim_buffers, 54 .reclaim_buffers = drm_core_reclaim_buffers,
55 .reclaim_buffers_locked = via_reclaim_buffers_locked, 55 .reclaim_buffers_locked = NULL,
56 .reclaim_buffers_idlelocked = via_reclaim_buffers_locked,
56 .lastclose = via_lastclose, 57 .lastclose = via_lastclose,
57 .get_map_ofs = drm_core_get_map_ofs, 58 .get_map_ofs = drm_core_get_map_ofs,
58 .get_reg_ofs = drm_core_get_reg_ofs, 59 .get_reg_ofs = drm_core_get_reg_ofs,
diff --git a/drivers/char/drm/via_mm.h b/drivers/char/drm/via_mm.h
deleted file mode 100644
index d57efda57c76..000000000000
--- a/drivers/char/drm/via_mm.h
+++ /dev/null
@@ -1,40 +0,0 @@
1/*
2 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
3 * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sub license,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
14 * of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 */
24#ifndef _via_drm_mm_h_
25#define _via_drm_mm_h_
26
27typedef struct {
28 unsigned int context;
29 unsigned int size;
30 unsigned long offset;
31 unsigned long free;
32} drm_via_mm_t;
33
34typedef struct {
35 unsigned int size;
36 unsigned long handle;
37 void *virtual;
38} drm_via_dma_t;
39
40#endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-28 01:28:19 -0400