diff options
Diffstat (limited to 'shared-core/i915_drv.h')
| -rw-r--r-- | shared-core/i915_drv.h | 43 |
1 files changed, 37 insertions, 6 deletions
diff --git a/shared-core/i915_drv.h b/shared-core/i915_drv.h index e8364b85..b8d027d7 100644 --- a/shared-core/i915_drv.h +++ b/shared-core/i915_drv.h @@ -258,21 +258,22 @@ extern int i915_irq_emit(struct drm_device *dev, void *data, extern int i915_irq_wait(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int i915_driver_vblank_wait(struct drm_device *dev, unsigned int *sequence); -extern int i915_driver_vblank_wait2(struct drm_device *dev, unsigned int *sequence); extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS); extern void i915_driver_irq_preinstall(struct drm_device * dev); -extern void i915_driver_irq_postinstall(struct drm_device * dev); +extern int i915_driver_irq_postinstall(struct drm_device * dev); extern void i915_driver_irq_uninstall(struct drm_device * dev); extern int i915_vblank_pipe_set(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int i915_vblank_pipe_get(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int i915_emit_irq(struct drm_device *dev); -extern void i915_user_irq_on(drm_i915_private_t *dev_priv); -extern void i915_user_irq_off(drm_i915_private_t *dev_priv); +extern int i915_emit_irq(struct drm_device * dev); +extern int i915_enable_vblank(struct drm_device *dev, int crtc); +extern void i915_disable_vblank(struct drm_device *dev, int crtc); +extern u32 i915_get_vblank_counter(struct drm_device *dev, int crtc); extern int i915_vblank_swap(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern void i915_user_irq_on(drm_i915_private_t *dev_priv); +extern void i915_user_irq_off(drm_i915_private_t *dev_priv); /* i915_mem.c */ extern int i915_mem_alloc(struct drm_device *dev, void *data, @@ -472,6 +473,36 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller); #define I915REG_PIPEASTAT 0x70024 #define I915REG_PIPEBSTAT 0x71024 +/* + * The two pipe frame counter registers are not synchronized, so + * reading a stable value is somewhat tricky. The following code + * should work: + * + * do { + * high1 = ((INREG(PIPEAFRAMEHIGH) & PIPE_FRAME_HIGH_MASK) >> + * PIPE_FRAME_HIGH_SHIFT; + * low1 = ((INREG(PIPEAFRAMEPIXEL) & PIPE_FRAME_LOW_MASK) >> + * PIPE_FRAME_LOW_SHIFT); + * high2 = ((INREG(PIPEAFRAMEHIGH) & PIPE_FRAME_HIGH_MASK) >> + * PIPE_FRAME_HIGH_SHIFT); + * } while (high1 != high2); + * frame = (high1 << 8) | low1; + */ +#define PIPEAFRAMEHIGH 0x70040 +#define PIPEBFRAMEHIGH 0x71040 +#define PIPE_FRAME_HIGH_MASK 0x0000ffff +#define PIPE_FRAME_HIGH_SHIFT 0 +#define PIPEAFRAMEPIXEL 0x70044 +#define PIPEBFRAMEPIXEL 0x71044 + +#define PIPE_FRAME_LOW_MASK 0xff000000 +#define PIPE_FRAME_LOW_SHIFT 24 +/* + * Pixel within the current frame is counted in the PIPEAFRAMEPIXEL register + * and is 24 bits wide. + */ +#define PIPE_PIXEL_MASK 0x00ffffff +#define PIPE_PIXEL_SHIFT 0 #define I915_VBLANK_INTERRUPT_ENABLE (1UL<<17) #define I915_VBLANK_CLEAR (1UL<<1) |