diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.h | 37 |
1 files changed, 12 insertions, 25 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index ff126485d398..929e7b4af2a4 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -107,7 +107,6 @@ struct intel_ringbuffer { int space; int size; int effective_size; - int reserved_size; /** We track the position of the requests in the ring buffer, and * when each is retired we increment last_retired_head as the GPU @@ -142,7 +141,8 @@ struct i915_ctx_workarounds { struct drm_i915_gem_object *obj; }; -struct intel_engine_cs { +struct intel_engine_cs { + struct drm_i915_private *i915; const char *name; enum intel_engine_id { RCS = 0, @@ -157,7 +157,6 @@ struct intel_engine_cs { unsigned int hw_id; unsigned int guc_id; /* XXX same as hw_id? */ u32 mmio_base; - struct drm_device *dev; struct intel_ringbuffer *buffer; struct list_head buffers; @@ -268,7 +267,6 @@ struct intel_engine_cs { struct tasklet_struct irq_tasklet; spinlock_t execlist_lock; /* used inside tasklet, use spin_lock_bh */ struct list_head execlist_queue; - struct list_head execlist_retired_req_list; unsigned int fw_domains; unsigned int next_context_status_buffer; unsigned int idle_lite_restore_wa; @@ -352,7 +350,7 @@ struct intel_engine_cs { static inline bool intel_engine_initialized(struct intel_engine_cs *engine) { - return engine->dev != NULL; + return engine->i915 != NULL; } static inline unsigned @@ -427,7 +425,7 @@ intel_write_status_page(struct intel_engine_cs *engine, struct intel_ringbuffer * intel_engine_create_ringbuffer(struct intel_engine_cs *engine, int size); -int intel_pin_and_map_ringbuffer_obj(struct drm_device *dev, +int intel_pin_and_map_ringbuffer_obj(struct drm_i915_private *dev_priv, struct intel_ringbuffer *ringbuf); void intel_unpin_ringbuffer_obj(struct intel_ringbuffer *ringbuf); void intel_ringbuffer_free(struct intel_ringbuffer *ring); @@ -486,26 +484,15 @@ static inline u32 intel_ring_get_tail(struct intel_ringbuffer *ringbuf) /* * Arbitrary size for largest possible 'add request' sequence. The code paths * are complex and variable. Empirical measurement shows that the worst case - * is ILK at 136 words. Reserving too much is better than reserving too little - * as that allows for corner cases that might have been missed. So the figure - * has been rounded up to 160 words. + * is BDW at 192 bytes (6 + 6 + 36 dwords), then ILK at 136 bytes. However, + * we need to allocate double the largest single packet within that emission + * to account for tail wraparound (so 6 + 6 + 72 dwords for BDW). */ -#define MIN_SPACE_FOR_ADD_REQUEST 160 +#define MIN_SPACE_FOR_ADD_REQUEST 336 -/* - * Reserve space in the ring to guarantee that the i915_add_request() call - * will always have sufficient room to do its stuff. The request creation - * code calls this automatically. - */ -void intel_ring_reserved_space_reserve(struct intel_ringbuffer *ringbuf, int size); -/* Cancel the reservation, e.g. because the request is being discarded. */ -void intel_ring_reserved_space_cancel(struct intel_ringbuffer *ringbuf); -/* Use the reserved space - for use by i915_add_request() only. */ -void intel_ring_reserved_space_use(struct intel_ringbuffer *ringbuf); -/* Finish with the reserved space - for use by i915_add_request() only. */ -void intel_ring_reserved_space_end(struct intel_ringbuffer *ringbuf); - -/* Legacy ringbuffer specific portion of reservation code: */ -int intel_ring_reserve_space(struct drm_i915_gem_request *request); +static inline u32 intel_hws_seqno_address(struct intel_engine_cs *engine) +{ + return engine->status_page.gfx_addr + I915_GEM_HWS_INDEX_ADDR; +} #endif /* _INTEL_RINGBUFFER_H_ */ |