drm: move to kref per-master structures.
This is step one towards having multiple masters sharing a drm
device in order to get fast-user-switching to work.
It splits out the information associated with the drm master
into a separate kref counted structure, and allocates this when
a master opens the device node. It also allows the current master
to abdicate (say while VT switched), and a new master to take over
the hardware.
It moves the Intel and radeon drivers to using the sarea from
within the new master structures.
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
index 3bbb871..490bc7c 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.h
+++ b/drivers/gpu/drm/radeon/radeon_drv.h
@@ -226,9 +226,13 @@
#define RADEON_FLUSH_EMITED (1 < 0)
#define RADEON_PURGE_EMITED (1 < 1)
+struct drm_radeon_master_private {
+ drm_local_map_t *sarea;
+ drm_radeon_sarea_t *sarea_priv;
+};
+
typedef struct drm_radeon_private {
drm_radeon_ring_buffer_t ring;
- drm_radeon_sarea_t *sarea_priv;
u32 fb_location;
u32 fb_size;
@@ -409,6 +413,9 @@
extern long radeon_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg);
+extern int radeon_master_create(struct drm_device *dev, struct drm_master *master);
+extern void radeon_master_destroy(struct drm_device *dev, struct drm_master *master);
+extern void radeon_cp_dispatch_flip(struct drm_device *dev, struct drm_master *master);
/* r300_cmdbuf.c */
extern void r300_init_reg_flags(struct drm_device *dev);
@@ -1335,8 +1342,9 @@
} while (0)
#define VB_AGE_TEST_WITH_RETURN( dev_priv ) \
-do { \
- drm_radeon_sarea_t *sarea_priv = dev_priv->sarea_priv; \
+do { \
+ struct drm_radeon_master_private *master_priv = file_priv->master->driver_priv; \
+ drm_radeon_sarea_t *sarea_priv = master_priv->sarea_priv; \
if ( sarea_priv->last_dispatch >= RADEON_MAX_VB_AGE ) { \
int __ret = radeon_do_cp_idle( dev_priv ); \
if ( __ret ) return __ret; \