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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-01 10:58:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-01 10:58:31 -0700
commit18ffe4b18cef097f789d3ff43b45f2938cebe241 (patch)
tree59a23065256d235eb85a7afcd2d0efa628d16e9c /include
parentb10c4d40b3e413a908072acc53dea13e90c39aff (diff)
parentabb295f3b3db602f91accf58b526b30b48673af1 (diff)
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Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: vmwgfx: Fix fb VRAM pinning failure due to fragmentation vmwgfx: Remove initialisation of dev::devname vmwgfx: Enable use of the vblank system vmwgfx: vt-switch (master drop) fixes drm/vmwgfx: Fix breakage introduced by commit "drm: block userspace under allocating buffer and having drivers overwrite it (v2)" drm: Hold the mutex when dropping the last GEM reference (v2) drm/gem: handlecount isn't really a kref so don't make it one. drm: i810/i830: fix locked ioctl variant drm/radeon/kms: add quirk for MSI K9A2GM motherboard drm/radeon/kms: fix potential segfault in r600_ioctl_wait_idle drm: Prune GEM vma entries drm/radeon/kms: fix up encoder info messages for DFP6 drm/radeon: fix PCI ID 5657 to be an RV410
Diffstat (limited to 'include')
-rw-r--r--include/drm/drmP.h29
-rw-r--r--include/drm/drm_pciids.h2
2 files changed, 21 insertions, 10 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 7809d230ade..4c9461a4f9e 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -612,7 +612,7 @@ struct drm_gem_object {
struct kref refcount;
/** Handle count of this object. Each handle also holds a reference */
- struct kref handlecount;
+ atomic_t handle_count; /* number of handles on this object */
/** Related drm device */
struct drm_device *dev;
@@ -808,7 +808,6 @@ struct drm_driver {
*/
int (*gem_init_object) (struct drm_gem_object *obj);
void (*gem_free_object) (struct drm_gem_object *obj);
- void (*gem_free_object_unlocked) (struct drm_gem_object *obj);
/* vga arb irq handler */
void (*vgaarb_irq)(struct drm_device *dev, bool state);
@@ -1175,6 +1174,7 @@ extern int drm_release(struct inode *inode, struct file *filp);
extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
extern void drm_vm_open_locked(struct vm_area_struct *vma);
+extern void drm_vm_close_locked(struct vm_area_struct *vma);
extern resource_size_t drm_core_get_map_ofs(struct drm_local_map * map);
extern resource_size_t drm_core_get_reg_ofs(struct drm_device *dev);
extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
@@ -1455,12 +1455,11 @@ int drm_gem_init(struct drm_device *dev);
void drm_gem_destroy(struct drm_device *dev);
void drm_gem_object_release(struct drm_gem_object *obj);
void drm_gem_object_free(struct kref *kref);
-void drm_gem_object_free_unlocked(struct kref *kref);
struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
size_t size);
int drm_gem_object_init(struct drm_device *dev,
struct drm_gem_object *obj, size_t size);
-void drm_gem_object_handle_free(struct kref *kref);
+void drm_gem_object_handle_free(struct drm_gem_object *obj);
void drm_gem_vm_open(struct vm_area_struct *vma);
void drm_gem_vm_close(struct vm_area_struct *vma);
int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
@@ -1483,8 +1482,12 @@ drm_gem_object_unreference(struct drm_gem_object *obj)
static inline void
drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
{
- if (obj != NULL)
- kref_put(&obj->refcount, drm_gem_object_free_unlocked);
+ if (obj != NULL) {
+ struct drm_device *dev = obj->dev;
+ mutex_lock(&dev->struct_mutex);
+ kref_put(&obj->refcount, drm_gem_object_free);
+ mutex_unlock(&dev->struct_mutex);
+ }
}
int drm_gem_handle_create(struct drm_file *file_priv,
@@ -1495,7 +1498,7 @@ static inline void
drm_gem_object_handle_reference(struct drm_gem_object *obj)
{
drm_gem_object_reference(obj);
- kref_get(&obj->handlecount);
+ atomic_inc(&obj->handle_count);
}
static inline void
@@ -1504,12 +1507,15 @@ drm_gem_object_handle_unreference(struct drm_gem_object *obj)
if (obj == NULL)
return;
+ if (atomic_read(&obj->handle_count) == 0)
+ return;
/*
* Must bump handle count first as this may be the last
* ref, in which case the object would disappear before we
* checked for a name
*/
- kref_put(&obj->handlecount, drm_gem_object_handle_free);
+ if (atomic_dec_and_test(&obj->handle_count))
+ drm_gem_object_handle_free(obj);
drm_gem_object_unreference(obj);
}
@@ -1519,12 +1525,17 @@ drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
if (obj == NULL)
return;
+ if (atomic_read(&obj->handle_count) == 0)
+ return;
+
/*
* Must bump handle count first as this may be the last
* ref, in which case the object would disappear before we
* checked for a name
*/
- kref_put(&obj->handlecount, drm_gem_object_handle_free);
+
+ if (atomic_dec_and_test(&obj->handle_count))
+ drm_gem_object_handle_free(obj);
drm_gem_object_unreference_unlocked(obj);
}
diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index 3a9940ef728..883c1d43989 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -85,7 +85,6 @@
{0x1002, 0x5460, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \
{0x1002, 0x5462, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \
{0x1002, 0x5464, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \
- {0x1002, 0x5657, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \
{0x1002, 0x5548, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \
{0x1002, 0x5549, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \
{0x1002, 0x554A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \
@@ -103,6 +102,7 @@
{0x1002, 0x564F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x5652, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x5653, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x5657, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_NEW_MEMMAP}, \
{0x1002, 0x5834, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS300|RADEON_IS_IGP}, \
{0x1002, 0x5835, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS300|RADEON_IS_IGP|RADEON_IS_MOBILITY}, \
{0x1002, 0x5954, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS480|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \