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- /*
- * 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
- #define GEN8_CSB_ENTRIES 6
- #define GEN8_CSB_PTR_MASK 0x07
- /* Execlists regs */
- #define RING_ELSP(ring) ((ring)->mmio_base+0x230)
- #define RING_EXECLIST_STATUS_LO(ring) ((ring)->mmio_base+0x234)
- #define RING_EXECLIST_STATUS_HI(ring) ((ring)->mmio_base+0x234 + 4)
- #define RING_CONTEXT_CONTROL(ring) ((ring)->mmio_base+0x244)
- #define CTX_CTRL_INHIBIT_SYN_CTX_SWITCH (1 << 3)
- #define CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT (1 << 0)
- #define CTX_CTRL_RS_CTX_ENABLE (1 << 1)
- #define RING_CONTEXT_STATUS_BUF_LO(ring, i) ((ring)->mmio_base+0x370 + (i) * 8)
- #define RING_CONTEXT_STATUS_BUF_HI(ring, i) ((ring)->mmio_base+0x370 + (i) * 8 + 4)
- #define RING_CONTEXT_STATUS_PTR(ring) ((ring)->mmio_base+0x3a0)
- /* Logical Rings */
- int intel_logical_ring_alloc_request_extras(struct drm_i915_gem_request *request);
- int intel_logical_ring_reserve_space(struct drm_i915_gem_request *request);
- 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 intel_logical_ring_begin(struct drm_i915_gem_request *req, int num_dwords);
- int logical_ring_flush_all_caches(struct drm_i915_gem_request *req);
- /**
- * 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;
- }
- /* Logical Ring Contexts */
- /* One extra page is added before LRC for GuC as shared data */
- #define LRC_GUCSHR_PN (0)
- #define LRC_PPHWSP_PN (LRC_GUCSHR_PN + 1)
- #define LRC_STATE_PN (LRC_PPHWSP_PN + 1)
- void intel_lr_context_free(struct intel_context *ctx);
- int intel_lr_context_deferred_alloc(struct intel_context *ctx,
- struct intel_engine_cs *ring);
- void intel_lr_context_unpin(struct drm_i915_gem_request *req);
- void intel_lr_context_reset(struct drm_device *dev,
- struct intel_context *ctx);
- uint64_t intel_lr_context_descriptor(struct intel_context *ctx,
- struct intel_engine_cs *ring);
- /* Execlists */
- int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists);
- struct i915_execbuffer_params;
- int intel_execlists_submission(struct i915_execbuffer_params *params,
- struct drm_i915_gem_execbuffer2 *args,
- struct list_head *vmas);
- u32 intel_execlists_ctx_id(struct drm_i915_gem_object *ctx_obj);
- void intel_lrc_irq_handler(struct intel_engine_cs *ring);
- void intel_execlists_retire_requests(struct intel_engine_cs *ring);
- #endif /* _INTEL_LRC_H_ */
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