| 0,0 → 1,118 |
|---|
| /* |
| * Copyright © 2014 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #ifndef _INTEL_LRC_H_ |
| #define _INTEL_LRC_H_ |
| |
| #define GEN8_LR_CONTEXT_ALIGN 4096 |
| |
| /* Execlists regs */ |
| #define RING_ELSP(ring) ((ring)->mmio_base+0x230) |
| #define RING_EXECLIST_STATUS(ring) ((ring)->mmio_base+0x234) |
| #define RING_CONTEXT_CONTROL(ring) ((ring)->mmio_base+0x244) |
| #define RING_CONTEXT_STATUS_BUF(ring) ((ring)->mmio_base+0x370) |
| #define RING_CONTEXT_STATUS_PTR(ring) ((ring)->mmio_base+0x3a0) |
| |
| /* Logical Rings */ |
| void intel_logical_ring_stop(struct intel_engine_cs *ring); |
| void intel_logical_ring_cleanup(struct intel_engine_cs *ring); |
| int intel_logical_rings_init(struct drm_device *dev); |
| |
| int logical_ring_flush_all_caches(struct intel_ringbuffer *ringbuf); |
| void intel_logical_ring_advance_and_submit(struct intel_ringbuffer *ringbuf); |
| /** |
| * intel_logical_ring_advance() - advance the ringbuffer tail |
| * @ringbuf: Ringbuffer to advance. |
| * |
| * The tail is only updated in our logical ringbuffer struct. |
| */ |
| static inline void intel_logical_ring_advance(struct intel_ringbuffer *ringbuf) |
| { |
| ringbuf->tail &= ringbuf->size - 1; |
| } |
| /** |
| * intel_logical_ring_emit() - write a DWORD to the ringbuffer. |
| * @ringbuf: Ringbuffer to write to. |
| * @data: DWORD to write. |
| */ |
| static inline void intel_logical_ring_emit(struct intel_ringbuffer *ringbuf, |
| u32 data) |
| { |
| iowrite32(data, ringbuf->virtual_start + ringbuf->tail); |
| ringbuf->tail += 4; |
| } |
| int intel_logical_ring_begin(struct intel_ringbuffer *ringbuf, int num_dwords); |
| |
| /* Logical Ring Contexts */ |
| int intel_lr_context_render_state_init(struct intel_engine_cs *ring, |
| struct intel_context *ctx); |
| void intel_lr_context_free(struct intel_context *ctx); |
| int intel_lr_context_deferred_create(struct intel_context *ctx, |
| struct intel_engine_cs *ring); |
| void intel_lr_context_unpin(struct intel_engine_cs *ring, |
| struct intel_context *ctx); |
| |
| /* Execlists */ |
| int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists); |
| int intel_execlists_submission(struct drm_device *dev, struct drm_file *file, |
| struct intel_engine_cs *ring, |
| struct intel_context *ctx, |
| struct drm_i915_gem_execbuffer2 *args, |
| struct list_head *vmas, |
| struct drm_i915_gem_object *batch_obj, |
| u64 exec_start, u32 flags); |
| u32 intel_execlists_ctx_id(struct drm_i915_gem_object *ctx_obj); |
| |
| /** |
| * struct intel_ctx_submit_request - queued context submission request |
| * @ctx: Context to submit to the ELSP. |
| * @ring: Engine to submit it to. |
| * @tail: how far in the context's ringbuffer this request goes to. |
| * @execlist_link: link in the submission queue. |
| * @work: workqueue for processing this request in a bottom half. |
| * @elsp_submitted: no. of times this request has been sent to the ELSP. |
| * |
| * The ELSP only accepts two elements at a time, so we queue context/tail |
| * pairs on a given queue (ring->execlist_queue) until the hardware is |
| * available. The queue serves a double purpose: we also use it to keep track |
| * of the up to 2 contexts currently in the hardware (usually one in execution |
| * and the other queued up by the GPU): We only remove elements from the head |
| * of the queue when the hardware informs us that an element has been |
| * completed. |
| * |
| * All accesses to the queue are mediated by a spinlock (ring->execlist_lock). |
| */ |
| struct intel_ctx_submit_request { |
| struct intel_context *ctx; |
| struct intel_engine_cs *ring; |
| u32 tail; |
| |
| struct list_head execlist_link; |
| |
| int elsp_submitted; |
| }; |
| |
| void intel_execlists_handle_ctx_events(struct intel_engine_cs *ring); |
| void intel_execlists_retire_requests(struct intel_engine_cs *ring); |
| |
| #endif /* _INTEL_LRC_H_ */ |