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path: root/drivers/gpu/drm/i915/intel_ringbuffer.h
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
-rw-r--r--drivers/gpu/drm/i915/intel_ringbuffer.h81
1 files changed, 47 insertions, 34 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 525e7d3..a05aff0 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -7,25 +7,32 @@ struct intel_hw_status_page {
struct drm_gem_object *obj;
};
+#define I915_READ_TAIL(ring) I915_READ(RING_TAIL(ring->mmio_base))
+#define I915_WRITE_TAIL(ring, val) I915_WRITE(RING_TAIL(ring->mmio_base), val)
+#define I915_READ_START(ring) I915_READ(RING_START(ring->mmio_base))
+#define I915_WRITE_START(ring, val) I915_WRITE(RING_START(ring->mmio_base), val)
+#define I915_READ_HEAD(ring) I915_READ(RING_HEAD(ring->mmio_base))
+#define I915_WRITE_HEAD(ring, val) I915_WRITE(RING_HEAD(ring->mmio_base), val)
+#define I915_READ_CTL(ring) I915_READ(RING_CTL(ring->mmio_base))
+#define I915_WRITE_CTL(ring, val) I915_WRITE(RING_CTL(ring->mmio_base), val)
+
struct drm_i915_gem_execbuffer2;
struct intel_ring_buffer {
const char *name;
- struct ring_regs {
- u32 ctl;
- u32 head;
- u32 tail;
- u32 start;
- } regs;
- unsigned int ring_flag;
+ enum intel_ring_id {
+ RING_RENDER = 0x1,
+ RING_BSD = 0x2,
+ RING_BLT = 0x4,
+ } id;
+ u32 mmio_base;
unsigned long size;
- unsigned int alignment;
void *virtual_start;
struct drm_device *dev;
struct drm_gem_object *gem_object;
unsigned int head;
unsigned int tail;
- unsigned int space;
+ int space;
struct intel_hw_status_page status_page;
u32 irq_gem_seqno; /* last seq seem at irq time */
@@ -35,30 +42,22 @@ struct intel_ring_buffer {
struct intel_ring_buffer *ring);
void (*user_irq_put)(struct drm_device *dev,
struct intel_ring_buffer *ring);
- void (*setup_status_page)(struct drm_device *dev,
- struct intel_ring_buffer *ring);
int (*init)(struct drm_device *dev,
struct intel_ring_buffer *ring);
- unsigned int (*get_head)(struct drm_device *dev,
- struct intel_ring_buffer *ring);
- unsigned int (*get_tail)(struct drm_device *dev,
- struct intel_ring_buffer *ring);
- unsigned int (*get_active_head)(struct drm_device *dev,
- struct intel_ring_buffer *ring);
- void (*advance_ring)(struct drm_device *dev,
- struct intel_ring_buffer *ring);
+ void (*write_tail)(struct drm_device *dev,
+ struct intel_ring_buffer *ring,
+ u32 value);
void (*flush)(struct drm_device *dev,
struct intel_ring_buffer *ring,
u32 invalidate_domains,
u32 flush_domains);
u32 (*add_request)(struct drm_device *dev,
struct intel_ring_buffer *ring,
- struct drm_file *file_priv,
u32 flush_domains);
- u32 (*get_gem_seqno)(struct drm_device *dev,
- struct intel_ring_buffer *ring);
+ u32 (*get_seqno)(struct drm_device *dev,
+ struct intel_ring_buffer *ring);
int (*dispatch_gem_execbuffer)(struct drm_device *dev,
struct intel_ring_buffer *ring,
struct drm_i915_gem_execbuffer2 *exec,
@@ -83,6 +82,20 @@ struct intel_ring_buffer {
*/
struct list_head request_list;
+ /**
+ * List of objects currently pending a GPU write flush.
+ *
+ * All elements on this list will belong to either the
+ * active_list or flushing_list, last_rendering_seqno can
+ * be used to differentiate between the two elements.
+ */
+ struct list_head gpu_write_list;
+
+ /**
+ * Do we have some not yet emitted requests outstanding?
+ */
+ bool outstanding_lazy_request;
+
wait_queue_head_t irq_queue;
drm_local_map_t map;
};
@@ -96,15 +109,13 @@ intel_read_status_page(struct intel_ring_buffer *ring,
}
int intel_init_ring_buffer(struct drm_device *dev,
- struct intel_ring_buffer *ring);
+ struct intel_ring_buffer *ring);
void intel_cleanup_ring_buffer(struct drm_device *dev,
- struct intel_ring_buffer *ring);
+ struct intel_ring_buffer *ring);
int intel_wait_ring_buffer(struct drm_device *dev,
- struct intel_ring_buffer *ring, int n);
-int intel_wrap_ring_buffer(struct drm_device *dev,
- struct intel_ring_buffer *ring);
+ struct intel_ring_buffer *ring, int n);
void intel_ring_begin(struct drm_device *dev,
- struct intel_ring_buffer *ring, int n);
+ struct intel_ring_buffer *ring, int n);
static inline void intel_ring_emit(struct drm_device *dev,
struct intel_ring_buffer *ring,
@@ -115,17 +126,19 @@ static inline void intel_ring_emit(struct drm_device *dev,
ring->tail += 4;
}
-void intel_fill_struct(struct drm_device *dev,
- struct intel_ring_buffer *ring,
- void *data,
- unsigned int len);
void intel_ring_advance(struct drm_device *dev,
struct intel_ring_buffer *ring);
u32 intel_ring_get_seqno(struct drm_device *dev,
struct intel_ring_buffer *ring);
-extern struct intel_ring_buffer render_ring;
-extern struct intel_ring_buffer bsd_ring;
+int intel_init_render_ring_buffer(struct drm_device *dev);
+int intel_init_bsd_ring_buffer(struct drm_device *dev);
+int intel_init_blt_ring_buffer(struct drm_device *dev);
+
+u32 intel_ring_get_active_head(struct drm_device *dev,
+ struct intel_ring_buffer *ring);
+void intel_ring_setup_status_page(struct drm_device *dev,
+ struct intel_ring_buffer *ring);
#endif /* _INTEL_RINGBUFFER_H_ */