geemili
/
drm
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

major port of multi-master ideas into modesetting

main
Dave Airlie 2008-02-13 15:19:42 +10:00
parent db85ed25af
commit 0fbee62ec1
14 changed files with 246 additions and 152 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

59
linux-core/drmP.h
View File

@ -262,11 +262,11 @@ struct drm_file;
*/
#define LOCK_TEST_WITH_RETURN( dev, file_priv ) \
do { \
if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
dev->lock.file_priv != file_priv ) { \
if ( !_DRM_LOCK_IS_HELD( dev->primary->master->lock.hw_lock->lock ) || \
dev->primary->master->lock.file_priv != file_priv ) { \
DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
__FUNCTION__, _DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ),\
dev->lock.file_priv, file_priv ); \
__FUNCTION__, _DRM_LOCK_IS_HELD( dev->primary->master->lock.hw_lock->lock ),\
dev->primary->master->lock.file_priv, file_priv ); \
return -EINVAL; \
} \
} while (0)
@ -410,7 +410,6 @@ enum drm_ref_type {
/** File private data */
struct drm_file {
int authenticated;
int master;
pid_t pid;
uid_t uid;
drm_magic_t magic;
@ -431,6 +430,7 @@ struct drm_file {
struct drm_open_hash refd_object_hash[_DRM_NO_REF_TYPES];
struct file *filp;
struct drm_master *master; /* this private has a master associated with it */
void *driver_priv;
struct list_head fbs;
@ -568,6 +568,8 @@ struct drm_map_list {
struct drm_map *map; /**< mapping */
uint64_t user_token;
struct drm_mm_node *file_offset_node;
struct drm_master *master; /** if this map is associated with a specific
master */
};
typedef struct drm_map drm_local_map_t;
@ -607,6 +609,27 @@ struct drm_ati_pcigart_info {
#include "drm_objects.h"
/* per-master structure */
struct drm_master {
struct drm_device *dev;
char *unique; /**< Unique identifier: e.g., busid */
int unique_len; /**< Length of unique field */
int blocked; /**< Blocked due to VC switch? */
/** \name Authentication */
/*@{ */
struct drm_open_hash magiclist;
struct list_head magicfree;
/*@} */
struct drm_lock_data lock; /**< Information on hardware lock */
void *driver_priv; /**< Private structure for driver to use */
};
/**
* DRM driver structure. This structure represent the common code for
* a family of cards. There will one drm_device for each card present
@ -711,6 +734,10 @@ struct drm_driver {
int (*fb_remove)(struct drm_device *dev, struct drm_crtc *crtc);
int (*fb_resize)(struct drm_device *dev, struct drm_crtc *crtc);
/* Master routines */
int (*master_create)(struct drm_device *dev, struct drm_master *master);
void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
struct drm_fence_driver *fence_driver;
struct drm_bo_driver *bo_driver;
@ -746,6 +773,9 @@ struct drm_minor {
/* for render nodes */
struct proc_dir_entry *dev_root; /**< proc directory entry */
struct class_device *dev_class;
/* for control nodes - a pointer to the current master for this control node */
struct drm_master *master;
};
@ -754,13 +784,9 @@ struct drm_minor {
* may contain multiple heads.
*/
struct drm_device {
char *unique; /**< Unique identifier: e.g., busid */
int unique_len; /**< Length of unique field */
char *devname; /**< For /proc/interrupts */
int if_version; /**< Highest interface version set */
int blocked; /**< Blocked due to VC switch? */
/** \name Locks */
/*@{ */
spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
@ -783,12 +809,6 @@ struct drm_device {
atomic_t counts[15];
/*@} */
/** \name Authentication */
/*@{ */
struct list_head filelist;
struct drm_open_hash magiclist;
struct list_head magicfree;
/*@} */
/** \name Memory management */
/*@{ */
@ -809,7 +829,9 @@ struct drm_device {
struct idr ctx_idr;
struct list_head vmalist; /**< List of vmas (for debugging) */
struct drm_lock_data lock; /**< Information on hardware lock */
struct list_head filelist;
// struct drm_master *master;
/*@} */
/** \name DMA queues (contexts) */
@ -821,6 +843,7 @@ struct drm_device {
struct drm_device_dma *dma; /**< Optional pointer for DMA support */
/*@} */
/** \name Context support */
/*@{ */
int irq; /**< Interrupt used by board */
@ -884,7 +907,7 @@ struct drm_device {
/* minor number for control node */
struct drm_minor *control;
struct drm_minor *primary; /**< primary screen head */
struct drm_minor *primary; /**< render type primary screen head */
struct drm_fence_manager fm;
struct drm_buffer_manager bm;
@ -1212,6 +1235,8 @@ extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
extern struct drm_ttm_backend *drm_agp_init_ttm(struct drm_device *dev);
extern void drm_agp_chipset_flush(struct drm_device *dev);
/* Stub support (drm_stub.h) */
extern struct drm_master *drm_get_master(struct drm_device *dev);
extern void drm_put_master(struct drm_master *master);
extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
struct drm_driver *driver);
extern int drm_put_dev(struct drm_device *dev);

28
linux-core/drm_auth.c
View File

@ -45,14 +45,15 @@
* the one with matching magic number, while holding the drm_device::struct_mutex
* lock.
*/
static struct drm_file *drm_find_file(struct drm_device * dev, drm_magic_t magic)
static struct drm_file *drm_find_file(struct drm_master *master , drm_magic_t magic)
{
struct drm_file *retval = NULL;
struct drm_magic_entry *pt;
struct drm_hash_item *hash;
struct drm_device *dev = master->dev;
mutex_lock(&dev->struct_mutex);
if (!drm_ht_find_item(&dev->magiclist, (unsigned long)magic, &hash)) {
if (!drm_ht_find_item(&master->magiclist, (unsigned long)magic, &hash)) {
pt = drm_hash_entry(hash, struct drm_magic_entry, hash_item);
retval = pt->priv;
}
@ -71,11 +72,11 @@ static struct drm_file *drm_find_file(struct drm_device * dev, drm_magic_t magic
* associated the magic number hash key in drm_device::magiclist, while holding
* the drm_device::struct_mutex lock.
*/
static int drm_add_magic(struct drm_device * dev, struct drm_file * priv,
static int drm_add_magic(struct drm_master *master, struct drm_file * priv,
drm_magic_t magic)
{
struct drm_magic_entry *entry;
struct drm_device *dev = master->dev;
DRM_DEBUG("%d\n", magic);
entry = drm_alloc(sizeof(*entry), DRM_MEM_MAGIC);
@ -85,8 +86,8 @@ static int drm_add_magic(struct drm_device * dev, struct drm_file * priv,
entry->priv = priv;
entry->hash_item.key = (unsigned long)magic;
mutex_lock(&dev->struct_mutex);
drm_ht_insert_item(&dev->magiclist, &entry->hash_item);
list_add_tail(&entry->head, &dev->magicfree);
drm_ht_insert_item(&master->magiclist, &entry->hash_item);
list_add_tail(&entry->head, &master->magicfree);
mutex_unlock(&dev->struct_mutex);
return 0;
@ -101,20 +102,21 @@ static int drm_add_magic(struct drm_device * dev, struct drm_file * priv,
* Searches and unlinks the entry in drm_device::magiclist with the magic
* number hash key, while holding the drm_device::struct_mutex lock.
*/
static int drm_remove_magic(struct drm_device * dev, drm_magic_t magic)
static int drm_remove_magic(struct drm_master *master, drm_magic_t magic)
{
struct drm_magic_entry *pt;
struct drm_hash_item *hash;
struct drm_device *dev = master->dev;
DRM_DEBUG("%d\n", magic);
mutex_lock(&dev->struct_mutex);
if (drm_ht_find_item(&dev->magiclist, (unsigned long)magic, &hash)) {
if (drm_ht_find_item(&master->magiclist, (unsigned long)magic, &hash)) {
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
pt = drm_hash_entry(hash, struct drm_magic_entry, hash_item);
drm_ht_remove_item(&dev->magiclist, hash);
drm_ht_remove_item(&master->magiclist, hash);
list_del(&pt->head);
mutex_unlock(&dev->struct_mutex);
@ -152,9 +154,9 @@ int drm_getmagic(struct drm_device *dev, void *data, struct drm_file *file_priv)
++sequence; /* reserve 0 */
auth->magic = sequence++;
spin_unlock(&lock);
} while (drm_find_file(dev, auth->magic));
} while (drm_find_file(dev->primary->master, auth->magic));
file_priv->magic = auth->magic;
drm_add_magic(dev, file_priv, auth->magic);
drm_add_magic(dev->primary->master, file_priv, auth->magic);
}
DRM_DEBUG("%u\n", auth->magic);
@ -180,9 +182,9 @@ int drm_authmagic(struct drm_device *dev, void *data,
struct drm_file *file;
DRM_DEBUG("%u\n", auth->magic);
if ((file = drm_find_file(dev, auth->magic))) {
if ((file = drm_find_file(dev->primary->master, auth->magic))) {
file->authenticated = 1;
drm_remove_magic(dev, auth->magic);
drm_remove_magic(dev->primary->master, auth->magic);
return 0;
}
return -EINVAL;

12
linux-core/drm_bufs.c
View File

@ -52,7 +52,7 @@ struct drm_map_list *drm_find_matching_map(struct drm_device *dev, drm_local_map
{
struct drm_map_list *entry;
list_for_each_entry(entry, &dev->maplist, head) {
if (entry->map && map->type == entry->map->type &&
if (entry->map && (entry->master == dev->primary->master) && (map->type == entry->map->type) &&
((entry->map->offset == map->offset) ||
((map->type == _DRM_SHM) && (map->flags&_DRM_CONTAINS_LOCK)))) {
return entry;
@ -209,12 +209,12 @@ static int drm_addmap_core(struct drm_device *dev, unsigned int offset,
map->offset = (unsigned long)map->handle;
if (map->flags & _DRM_CONTAINS_LOCK) {
/* Prevent a 2nd X Server from creating a 2nd lock */
if (dev->lock.hw_lock != NULL) {
if (dev->primary->master->lock.hw_lock != NULL) {
vfree(map->handle);
drm_free(map, sizeof(*map), DRM_MEM_MAPS);
return -EBUSY;
}
dev->sigdata.lock = dev->lock.hw_lock = map->handle; /* Pointer to lock */
dev->sigdata.lock = dev->primary->master->lock.hw_lock = map->handle; /* Pointer to lock */
}
break;
case _DRM_AGP: {
@ -412,9 +412,9 @@ int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t *map)
break;
case _DRM_SHM:
vfree(map->handle);
dev->sigdata.lock = dev->lock.hw_lock = NULL; /* SHM removed */
dev->lock.file_priv = NULL;
wake_up_interruptible(&dev->lock.lock_queue);
dev->sigdata.lock = dev->primary->master->lock.hw_lock = NULL; /* SHM removed */
dev->primary->master->lock.file_priv = NULL;
wake_up_interruptible(&dev->primary->master->lock.lock_queue);
break;
case _DRM_AGP:
case _DRM_SCATTER_GATHER:

2
linux-core/drm_context.c
View File

@ -262,7 +262,7 @@ static int drm_context_switch_complete(struct drm_device *dev, int new)
dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
dev->last_switch = jiffies;
if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
if (!_DRM_LOCK_IS_HELD(dev->primary->master->lock.hw_lock->lock)) {
DRM_ERROR("Lock isn't held after context switch\n");
}

24
linux-core/drm_drv.c
View File

@ -180,8 +180,6 @@ static struct drm_ioctl_desc drm_ioctls[] = {
*/
int drm_lastclose(struct drm_device * dev)
{
struct drm_magic_entry *pt, *next;
struct drm_map_list *r_list, *list_t;
struct drm_vma_entry *vma, *vma_temp;
int i;
@ -196,11 +194,6 @@ int drm_lastclose(struct drm_device * dev)
dev->driver->lastclose(dev);
DRM_DEBUG("driver lastclose completed\n");
if (dev->unique) {
drm_free(dev->unique, strlen(dev->unique) + 1, DRM_MEM_DRIVER);
dev->unique = NULL;
dev->unique_len = 0;
}
/* if (dev->irq_enabled)
drm_irq_uninstall(dev); */
@ -211,22 +204,11 @@ int drm_lastclose(struct drm_device * dev)
drm_drawable_free_all(dev);
del_timer(&dev->timer);
if (dev->unique) {
drm_free(dev->unique, strlen(dev->unique) + 1, DRM_MEM_DRIVER);
dev->unique = NULL;
dev->unique_len = 0;
if (dev->primary->master) {
drm_put_master(dev->primary->master);
dev->primary->master = NULL;
}
if (dev->magicfree.next) {
list_for_each_entry_safe(pt, next, &dev->magicfree, head) {
list_del(&pt->head);
drm_ht_remove_item(&dev->magiclist, &pt->hash_item);
drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
}
drm_ht_remove(&dev->magiclist);
}
/* Clear AGP information */
if (drm_core_has_AGP(dev) && dev->agp) {
struct drm_agp_mem *entry, *tempe;

67
linux-core/drm_fops.c
View File

@ -54,8 +54,6 @@ static int drm_setup(struct drm_device * dev)
return ret;
}
dev->magicfree.next = NULL;
/* prebuild the SAREA */
sareapage = max(SAREA_MAX, PAGE_SIZE);
i = drm_addmap(dev, 0, sareapage, _DRM_SHM, _DRM_CONTAINS_LOCK, &map);
@ -76,11 +74,8 @@ static int drm_setup(struct drm_device * dev)
for (i = 0; i < ARRAY_SIZE(dev->counts); i++)
atomic_set(&dev->counts[i], 0);
drm_ht_create(&dev->magiclist, DRM_MAGIC_HASH_ORDER);
INIT_LIST_HEAD(&dev->magicfree);
dev->sigdata.lock = NULL;
init_waitqueue_head(&dev->lock.lock_queue);
dev->queue_count = 0;
dev->queue_reserved = 0;
dev->queue_slots = 0;
@ -282,8 +277,26 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
}
mutex_lock(&dev->struct_mutex);
if (list_empty(&dev->filelist))
priv->master = 1;
/* if there is no current master make this fd it */
if (!dev->primary->master) {
priv->master = drm_get_master(dev);
if (!priv->master) {
ret = -ENOMEM;
goto out_free;
}
dev->primary->master = priv->master;
if (dev->driver->master_create) {
ret = dev->driver->master_create(dev, dev->primary->master);
if (ret) {
drm_put_master(dev->primary->master);
dev->primary->master = priv->master = NULL;
goto out_free;
}
}
} else
priv->master = NULL;
list_add(&priv->lhead, &dev->filelist);
mutex_unlock(&dev->struct_mutex);
@ -390,23 +403,23 @@ int drm_release(struct inode *inode, struct file *filp)
current->pid, (long)old_encode_dev(file_priv->minor->device),
dev->open_count);
if (dev->driver->reclaim_buffers_locked && dev->lock.hw_lock) {
if (dev->driver->reclaim_buffers_locked && dev->primary->master->lock.hw_lock) {
if (drm_i_have_hw_lock(dev, file_priv)) {
dev->driver->reclaim_buffers_locked(dev, file_priv);
} else {
unsigned long _end=jiffies + 3*DRM_HZ;
int locked = 0;
drm_idlelock_take(&dev->lock);
drm_idlelock_take(&dev->primary->master->lock);
/*
* Wait for a while.
*/
do{
spin_lock(&dev->lock.spinlock);
locked = dev->lock.idle_has_lock;
spin_unlock(&dev->lock.spinlock);
spin_lock(&dev->primary->master->lock.spinlock);
locked = dev->primary->master->lock.idle_has_lock;
spin_unlock(&dev->primary->master->lock.spinlock);
if (locked)
break;
schedule();
@ -419,24 +432,24 @@ int drm_release(struct inode *inode, struct file *filp)
}
dev->driver->reclaim_buffers_locked(dev, file_priv);
drm_idlelock_release(&dev->lock);
drm_idlelock_release(&dev->primary->master->lock);
}
}
if (dev->driver->reclaim_buffers_idlelocked && dev->lock.hw_lock) {
if (dev->driver->reclaim_buffers_idlelocked && dev->primary->master->lock.hw_lock) {
drm_idlelock_take(&dev->lock);
drm_idlelock_take(&dev->primary->master->lock);
dev->driver->reclaim_buffers_idlelocked(dev, file_priv);
drm_idlelock_release(&dev->lock);
drm_idlelock_release(&dev->primary->master->lock);
}
if (drm_i_have_hw_lock(dev, file_priv)) {
DRM_DEBUG("File %p released, freeing lock for context %d\n",
filp, _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
filp, _DRM_LOCKING_CONTEXT(dev->primary->master->lock.hw_lock->lock));
drm_lock_free(&dev->lock,
_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
drm_lock_free(&dev->primary->master->lock,
_DRM_LOCKING_CONTEXT(dev->primary->master->lock.hw_lock->lock));
}
@ -479,6 +492,14 @@ int drm_release(struct inode *inode, struct file *filp)
temp->authenticated = 0;
}
list_del(&file_priv->lhead);
if (file_priv->master) {
if (file_priv->master == dev->primary->master)
dev->primary->master = NULL;
drm_put_master(file_priv->master);
file_priv->master = NULL;
}
mutex_unlock(&dev->struct_mutex);
if (dev->driver->postclose)
@ -492,9 +513,9 @@ int drm_release(struct inode *inode, struct file *filp)
atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);
spin_lock(&dev->count_lock);
if (!--dev->open_count) {
if (atomic_read(&dev->ioctl_count) || dev->blocked) {
DRM_ERROR("Device busy: %d %d\n",
atomic_read(&dev->ioctl_count), dev->blocked);
if (atomic_read(&dev->ioctl_count)) {
DRM_ERROR("Device busy: %d\n",
atomic_read(&dev->ioctl_count));
spin_unlock(&dev->count_lock);
unlock_kernel();
return -EBUSY;

46
linux-core/drm_ioctl.c
View File

@ -53,12 +53,13 @@ int drm_getunique(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_unique *u = data;
struct drm_master *master = dev->primary->master;
if (u->unique_len >= dev->unique_len) {
if (copy_to_user(u->unique, dev->unique, dev->unique_len))
if (u->unique_len >= master->unique_len) {
if (copy_to_user(u->unique, master->unique, master->unique_len))
return -EFAULT;
}
u->unique_len = dev->unique_len;
u->unique_len = master->unique_len;
return 0;
}
@ -81,36 +82,37 @@ int drm_setunique(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_unique *u = data;
struct drm_master *master = dev->primary->master;
int domain, bus, slot, func, ret;
if (dev->unique_len || dev->unique)
if (master->unique_len || master->unique)
return -EBUSY;
if (!u->unique_len || u->unique_len > 1024)
return -EINVAL;
dev->unique_len = u->unique_len;
dev->unique = drm_alloc(u->unique_len + 1, DRM_MEM_DRIVER);
if (!dev->unique)
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(dev->unique, u->unique, dev->unique_len))
if (copy_from_user(master->unique, u->unique, master->unique_len))
return -EFAULT;
dev->unique[dev->unique_len] = '\0';
master->unique[master->unique_len] = '\0';
dev->devname =
drm_alloc(strlen(dev->driver->pci_driver.name) +
strlen(dev->unique) + 2, DRM_MEM_DRIVER);
strlen(master->unique) + 2, DRM_MEM_DRIVER);
if (!dev->devname)
return -ENOMEM;
sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
dev->unique);
master->unique);
/* Return error if the busid submitted doesn't match the device's actual
* busid.
*/
ret = sscanf(dev->unique, "PCI:%d:%d:%d", &bus, &slot, &func);
ret = sscanf(master->unique, "PCI:%d:%d:%d", &bus, &slot, &func);
if (ret != 3)
return -EINVAL;
domain = bus >> 8;
@ -127,31 +129,33 @@ int drm_setunique(struct drm_device *dev, void *data,
static int drm_set_busid(struct drm_device * dev)
{
struct drm_master *master = dev->primary->master;
int len;
if (dev->unique != NULL)
if (master->unique != NULL)
return -EBUSY;
dev->unique_len = 40;
dev->unique = drm_alloc(dev->unique_len + 1, DRM_MEM_DRIVER);
if (dev->unique == NULL)
master->unique_len = 40;
master->unique = drm_alloc(master->unique_len + 1, DRM_MEM_DRIVER);
if (master->unique == NULL)
return -ENOMEM;
len = snprintf(dev->unique, dev->unique_len, "pci:%04x:%02x:%02x.%d",
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 > dev->unique_len)
if (len > master->unique_len)
DRM_ERROR("buffer overflow");
dev->devname =
drm_alloc(strlen(dev->driver->pci_driver.name) + dev->unique_len +
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,
dev->unique);
master->unique);
return 0;
}
@ -275,7 +279,7 @@ int drm_getstats(struct drm_device *dev, void *data,
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);
(dev->primary->master->lock.hw_lock ? dev->primary->master->lock.hw_lock->lock : 0);
else
stats->data[i].value = atomic_read(&dev->counts[i]);
stats->data[i].type = dev->types[i];

6
linux-core/drm_irq.c
View File

@ -636,18 +636,18 @@ static void drm_locked_tasklet_func(unsigned long data)
spin_lock_irqsave(&dev->tasklet_lock, irqflags);
if (!dev->locked_tasklet_func ||
!drm_lock_take(&dev->lock,
!drm_lock_take(&dev->primary->master->lock,
DRM_KERNEL_CONTEXT)) {
spin_unlock_irqrestore(&dev->tasklet_lock, irqflags);
return;
}
dev->lock.lock_time = jiffies;
dev->primary->master->lock.lock_time = jiffies;
atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
dev->locked_tasklet_func(dev);
drm_lock_free(&dev->lock,
drm_lock_free(&dev->primary->master->lock,
DRM_KERNEL_CONTEXT);
dev->locked_tasklet_func = NULL;

40
linux-core/drm_lock.c
View File

@ -52,6 +52,7 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
DECLARE_WAITQUEUE(entry, current);
struct drm_lock *lock = data;
struct drm_master *master = dev->primary->master;
int ret = 0;
++file_priv->lock_count;
@ -64,26 +65,26 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
lock->context, current->pid,
dev->lock.hw_lock->lock, lock->flags);
master->lock.hw_lock->lock, lock->flags);
if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE))
if (lock->context < 0)
return -EINVAL;
add_wait_queue(&dev->lock.lock_queue, &entry);
spin_lock(&dev->lock.spinlock);
dev->lock.user_waiters++;
spin_unlock(&dev->lock.spinlock);
add_wait_queue(&master->lock.lock_queue, &entry);
spin_lock(&master->lock.spinlock);
master->lock.user_waiters++;
spin_unlock(&master->lock.spinlock);
for (;;) {
__set_current_state(TASK_INTERRUPTIBLE);
if (!dev->lock.hw_lock) {
if (!master->lock.hw_lock) {
/* Device has been unregistered */
ret = -EINTR;
break;
}
if (drm_lock_take(&dev->lock, lock->context)) {
dev->lock.file_priv = file_priv;
dev->lock.lock_time = jiffies;
if (drm_lock_take(&master->lock, lock->context)) {
master->lock.file_priv = file_priv;
master->lock.lock_time = jiffies;
atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
break; /* Got lock */
}
@ -95,11 +96,11 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
break;
}
}
spin_lock(&dev->lock.spinlock);
dev->lock.user_waiters--;
spin_unlock(&dev->lock.spinlock);
spin_lock(&master->lock.spinlock);
master->lock.user_waiters--;
spin_unlock(&master->lock.spinlock);
__set_current_state(TASK_RUNNING);
remove_wait_queue(&dev->lock.lock_queue, &entry);
remove_wait_queue(&master->lock.lock_queue, &entry);
DRM_DEBUG("%d %s\n", lock->context,
ret ? "interrupted" : "has lock");
@ -111,7 +112,7 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
sigaddset(&dev->sigmask, SIGTTIN);
sigaddset(&dev->sigmask, SIGTTOU);
dev->sigdata.context = lock->context;
dev->sigdata.lock = dev->lock.hw_lock;
dev->sigdata.lock = master->lock.hw_lock;
block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask);
if (dev->driver->dma_ready && (lock->flags & _DRM_LOCK_READY))
@ -149,6 +150,7 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
struct drm_lock *lock = data;
struct drm_master *master = dev->primary->master;
unsigned long irqflags;
if (lock->context == DRM_KERNEL_CONTEXT) {
@ -175,7 +177,7 @@ int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv)
if (dev->driver->kernel_context_switch_unlock)
dev->driver->kernel_context_switch_unlock(dev);
else {
if (drm_lock_free(&dev->lock,lock->context)) {
if (drm_lock_free(&master->lock,lock->context)) {
/* FIXME: Should really bail out here. */
}
}
@ -384,10 +386,10 @@ EXPORT_SYMBOL(drm_idlelock_release);
int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv)
{
return (file_priv->lock_count && dev->lock.hw_lock &&
_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) &&
dev->lock.file_priv == file_priv);
struct drm_master *master = dev->primary->master;
return (file_priv->lock_count && master->lock.hw_lock &&
_DRM_LOCK_IS_HELD(master->lock.hw_lock->lock) &&
master->lock.file_priv == file_priv);
}
EXPORT_SYMBOL(drm_i_have_hw_lock);

5
linux-core/drm_proc.c
View File

@ -166,6 +166,7 @@ static int drm_name_info(char *buf, char **start, off_t offset, int request,
int *eof, void *data)
{
struct drm_device *dev = (struct drm_device *) data;
struct drm_master *master = dev->primary->master;
int len = 0;
if (offset > DRM_PROC_LIMIT) {
@ -176,10 +177,10 @@ static int drm_name_info(char *buf, char **start, off_t offset, int request,
*start = &buf[offset];
*eof = 0;
if (dev->unique) {
if (master->unique) {
DRM_PROC_PRINT("%s %s %s\n",
dev->driver->pci_driver.name,
pci_name(dev->pdev), dev->unique);
pci_name(dev->pdev), master->unique);
} else {
DRM_PROC_PRINT("%s %s\n", dev->driver->pci_driver.name,
pci_name(dev->pdev));

70
linux-core/drm_stub.c
View File

@ -91,13 +91,63 @@ again:
return new_id;
}
struct drm_master *drm_get_master(struct drm_device *dev)
{
struct drm_master *master;
master = drm_calloc(1, sizeof(*master), DRM_MEM_DRIVER);
if (!master)
return NULL;
// INIT_LIST_HEAD(&master->filelist);
spin_lock_init(&master->lock.spinlock);
init_waitqueue_head(&master->lock.lock_queue);
drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER);
INIT_LIST_HEAD(&master->magicfree);
master->dev = dev;
return master;
}
void drm_put_master(struct drm_master *master)
{
struct drm_magic_entry *pt, *next;
struct drm_device *dev = master->dev;
if (dev->driver->master_destroy)
dev->driver->master_destroy(dev, master);
if (master->unique) {
drm_free(master->unique, strlen(master->unique) + 1, DRM_MEM_DRIVER);
master->unique = NULL;
master->unique_len = 0;
}
list_for_each_entry_safe(pt, next, &master->magicfree, head) {
list_del(&pt->head);
drm_ht_remove_item(&master->magiclist, &pt->hash_item);
drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
}
drm_ht_remove(&master->magiclist);
if (master->lock.hw_lock) {
if (dev->sigdata.lock == master->lock.hw_lock)
dev->sigdata.lock = NULL;
master->lock.hw_lock = NULL; /* SHM removed */
master->lock.file_priv = NULL;
wake_up_interruptible(&master->lock.lock_queue);
}
drm_free(master, sizeof(*master), DRM_MEM_DRIVER);
}
static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
const struct pci_device_id *ent,
struct drm_driver *driver)
{
int retcode;
INIT_LIST_HEAD(&dev->filelist);
INIT_LIST_HEAD(&dev->ctxlist);
INIT_LIST_HEAD(&dev->vmalist);
INIT_LIST_HEAD(&dev->maplist);
@ -105,7 +155,7 @@ static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
spin_lock_init(&dev->count_lock);
spin_lock_init(&dev->drw_lock);
spin_lock_init(&dev->tasklet_lock);
spin_lock_init(&dev->lock.spinlock);
// spin_lock_init(&dev->lock.spinlock);
init_timer(&dev->timer);
mutex_init(&dev->struct_mutex);
mutex_init(&dev->ctxlist_mutex);
@ -168,10 +218,6 @@ static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
}
}
if (dev->driver->load)
if ((retcode = dev->driver->load(dev, ent->driver_data)))
goto error_out_unreg;
retcode = drm_ctxbitmap_init(dev);
if (retcode) {
DRM_ERROR("Cannot allocate memory for context bitmap.\n");
@ -301,12 +347,17 @@ int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
if ((ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_RENDER)))
goto err_g4;
if (dev->driver->load)
if ((ret = dev->driver->load(dev, ent->driver_data)))
goto err_g5;
DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
driver->name, driver->major, driver->minor, driver->patchlevel,
driver->date, dev->primary->index);
return 0;
err_g5:
drm_put_minor(&dev->primary);
err_g4:
drm_put_minor(&dev->control);
err_g3:
@ -340,11 +391,6 @@ int drm_put_dev(struct drm_device * dev)
{
DRM_DEBUG("release primary %s\n", dev->driver->pci_driver.name);
if (dev->unique) {
drm_free(dev->unique, strlen(dev->unique) + 1, DRM_MEM_DRIVER);
dev->unique = NULL;
dev->unique_len = 0;
}
if (dev->devname) {
drm_free(dev->devname, strlen(dev->devname) + 1,
DRM_MEM_DRIVER);

2
linux-core/i915_drv.c
View File

@ -558,6 +558,8 @@ static struct drm_driver driver = {
.fb_probe = intelfb_probe,
.fb_remove = intelfb_remove,
.fb_resize = intelfb_resize,
.master_create = i915_master_create,
.master_destroy = i915_master_destroy,
.ioctls = i915_ioctls,
.fops = {
.owner = THIS_MODULE,

29
linux-core/intel_display.c
View File

@ -363,6 +363,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_master_private *master_priv;
struct intel_crtc *intel_crtc = crtc->driver_private;
int pipe = intel_crtc->pipe;
unsigned long Start, Offset;
@ -384,17 +385,21 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y)
}
if (!dev_priv->sarea_priv)
if (!dev->primary->master)
return;
master_priv = dev->primary->master->driver_priv;
if (!master_priv->sarea_priv)
return;
switch (pipe) {
case 0:
dev_priv->sarea_priv->planeA_x = x;
dev_priv->sarea_priv->planeA_y = y;
master_priv->sarea_priv->planeA_x = x;
master_priv->sarea_priv->planeA_y = y;
break;
case 1:
dev_priv->sarea_priv->planeB_x = x;
dev_priv->sarea_priv->planeB_y = y;
master_priv->sarea_priv->planeB_x = x;
master_priv->sarea_priv->planeB_y = y;
break;
default:
DRM_ERROR("Can't update pipe %d in SAREA\n", pipe);
@ -413,6 +418,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y)
static void intel_crtc_dpms(struct drm_crtc *crtc, int mode)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_master_private *master_priv;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = crtc->driver_private;
int pipe = intel_crtc->pipe;
@ -507,20 +513,23 @@ static void intel_crtc_dpms(struct drm_crtc *crtc, int mode)
break;
}
if (!dev->primary->master)
return;
if (!dev_priv->sarea_priv)
master_priv = dev->primary->master->driver_priv;
if (!master_priv->sarea_priv)
return;
enabled = crtc->enabled && mode != DPMSModeOff;
switch (pipe) {
case 0:
dev_priv->sarea_priv->planeA_w = enabled ? crtc->mode.hdisplay : 0;
dev_priv->sarea_priv->planeA_h = enabled ? crtc->mode.vdisplay : 0;
master_priv->sarea_priv->planeA_w = enabled ? crtc->mode.hdisplay : 0;
master_priv->sarea_priv->planeA_h = enabled ? crtc->mode.vdisplay : 0;
break;
case 1:
dev_priv->sarea_priv->planeB_w = enabled ? crtc->mode.hdisplay : 0;
dev_priv->sarea_priv->planeB_h = enabled ? crtc->mode.vdisplay : 0;
master_priv->sarea_priv->planeB_w = enabled ? crtc->mode.hdisplay : 0;
master_priv->sarea_priv->planeB_h = enabled ? crtc->mode.vdisplay : 0;
break;
default:
DRM_ERROR("Can't update pipe %d in SAREA\n", pipe);

4
linux-core/via_fence.c
View File

@ -69,7 +69,7 @@ static uint32_t via_perform_flush(struct drm_device *dev, uint32_t class)
if (!dev_priv->have_idlelock) {
drm_idlelock_take(&dev->lock);
drm_idlelock_take(&dev->primary->master->lock);
dev_priv->have_idlelock = 1;
}
@ -95,7 +95,7 @@ static uint32_t via_perform_flush(struct drm_device *dev, uint32_t class)
if (signaled_flush_types) {
pending_flush_types &= ~signaled_flush_types;
if (!pending_flush_types && dev_priv->have_idlelock) {
drm_idlelock_release(&dev->lock);
drm_idlelock_release(&dev->primary->master->lock);
dev_priv->have_idlelock = 0;
}
drm_fence_handler(dev, 0, dev_priv->emit_0_sequence,