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[intel-gem] Add explicit throttle ioctl 

Instead of throttling and execbuffer time, have the application ask to
throttle explicitly. This allows the throttle to happen less often, and
without holding the DRM lock.
main
Keith Packard 2008-06-06 12:57:01 -07:00
parent 329e086225
commit 56a96841d0
4 changed files with 12 additions and 4 deletions
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11
linux-core/i915_gem.c
View File

@ -1371,10 +1371,6 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
#endif
i915_kernel_lost_context(dev);
ret = i915_gem_ring_throttle(dev);
if (ret)
return ret;
/* Copy in the exec list from userland */
exec_list = drm_calloc(sizeof(*exec_list), args->buffer_count,
DRM_MEM_DRIVER);
@ -1628,6 +1624,13 @@ i915_gem_busy_ioctl(struct drm_device *dev, void *data,
return 0;
}
int
i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
return i915_gem_ring_throttle(dev);
}
int i915_gem_init_object(struct drm_gem_object *obj)
{
struct drm_i915_gem_object *obj_priv;

1
shared-core/i915_dma.c
View File

@ -1189,6 +1189,7 @@ struct drm_ioctl_desc i915_ioctls[] = {
DRM_IOCTL_DEF(DRM_I915_GEM_PIN, i915_gem_pin_ioctl, DRM_AUTH|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_I915_GEM_UNPIN, i915_gem_unpin_ioctl, DRM_AUTH|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH),
DRM_IOCTL_DEF(DRM_I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH),
};
int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);

2
shared-core/i915_drm.h
View File

@ -181,6 +181,7 @@ typedef struct drm_i915_sarea {
#define DRM_I915_GEM_PIN 0x15
#define DRM_I915_GEM_UNPIN 0x16
#define DRM_I915_GEM_BUSY 0x17
#define DRM_I915_GEM_THROTTLE 0x18
#define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
#define DRM_IOCTL_I915_FLUSH DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
@ -205,6 +206,7 @@ typedef struct drm_i915_sarea {
#define DRM_IOCTL_I915_GEM_PIN DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_PIN, struct drm_i915_gem_pin)
#define DRM_IOCTL_I915_GEM_UNPIN DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_UNPIN, struct drm_i915_gem_unpin)
#define DRM_IOCTL_I915_GEM_BUSY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_BUSY, struct drm_i915_gem_busy)
#define DRM_IOCTL_I915_GEM_THROTTLE DRM_IO ( DRM_COMMAND_BASE + DRM_I915_GEM_THROTTLE)
/* Asynchronous page flipping:
*/

2
shared-core/i915_drv.h
View File

@ -451,6 +451,8 @@ int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_init_object(struct drm_gem_object *obj);
void i915_gem_free_object(struct drm_gem_object *obj);
int i915_gem_set_domain(struct drm_gem_object *obj,