2 * Copyright © 2014 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
27 #define GEN8_LR_CONTEXT_ALIGN 4096
28 #define GEN8_CSB_ENTRIES 6
29 #define GEN8_CSB_PTR_MASK 0x07
32 #define RING_ELSP(ring) ((ring)->mmio_base+0x230)
33 #define RING_EXECLIST_STATUS(ring) ((ring)->mmio_base+0x234)
34 #define RING_CONTEXT_CONTROL(ring) ((ring)->mmio_base+0x244)
35 #define CTX_CTRL_INHIBIT_SYN_CTX_SWITCH (1 << 3)
36 #define CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT (1 << 0)
37 #define CTX_CTRL_RS_CTX_ENABLE (1 << 1)
38 #define RING_CONTEXT_STATUS_BUF(ring) ((ring)->mmio_base+0x370)
39 #define RING_CONTEXT_STATUS_PTR(ring) ((ring)->mmio_base+0x3a0)
42 int intel_logical_ring_alloc_request_extras(struct drm_i915_gem_request *request);
43 int intel_logical_ring_reserve_space(struct drm_i915_gem_request *request);
44 void intel_logical_ring_stop(struct intel_engine_cs *ring);
45 void intel_logical_ring_cleanup(struct intel_engine_cs *ring);
46 int intel_logical_rings_init(struct drm_device *dev);
47 int intel_logical_ring_begin(struct drm_i915_gem_request *req, int num_dwords);
49 int logical_ring_flush_all_caches(struct drm_i915_gem_request *req);
51 * intel_logical_ring_advance() - advance the ringbuffer tail
52 * @ringbuf: Ringbuffer to advance.
54 * The tail is only updated in our logical ringbuffer struct.
56 static inline void intel_logical_ring_advance(struct intel_ringbuffer *ringbuf)
58 ringbuf->tail &= ringbuf->size - 1;
61 * intel_logical_ring_emit() - write a DWORD to the ringbuffer.
62 * @ringbuf: Ringbuffer to write to.
63 * @data: DWORD to write.
65 static inline void intel_logical_ring_emit(struct intel_ringbuffer *ringbuf,
68 iowrite32(data, ringbuf->virtual_start + ringbuf->tail);
72 /* Logical Ring Contexts */
73 void intel_lr_context_free(struct intel_context *ctx);
74 int intel_lr_context_deferred_create(struct intel_context *ctx,
75 struct intel_engine_cs *ring);
76 void intel_lr_context_unpin(struct drm_i915_gem_request *req);
77 void intel_lr_context_reset(struct drm_device *dev,
78 struct intel_context *ctx);
81 int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists);
82 struct i915_execbuffer_params;
83 int intel_execlists_submission(struct i915_execbuffer_params *params,
84 struct drm_i915_gem_execbuffer2 *args,
85 struct list_head *vmas);
86 u32 intel_execlists_ctx_id(struct drm_i915_gem_object *ctx_obj);
88 void intel_lrc_irq_handler(struct intel_engine_cs *ring);
89 void intel_execlists_retire_requests(struct intel_engine_cs *ring);
91 #endif /* _INTEL_LRC_H_ */