[deliverable/linux.git] / drivers / gpu / drm / i915 / intel_lrc.h

/*
 * 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_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;
}
static inline void intel_logical_ring_emit_reg(struct intel_ringbuffer *ringbuf,
					       u32 reg)
{
	intel_logical_ring_emit(ringbuf, reg);
}

/* 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_ */
Commit	Line	Data
	1	/*
	2	* Copyright © 2014 Intel Corporation
	3	*
	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:
	10	*
	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
	13	* Software.
	14	*
	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.
	22	*/
	23
	24	#ifndef _INTEL_LRC_H_
	25	#define _INTEL_LRC_H_
	26
	27	#define GEN8_LR_CONTEXT_ALIGN 4096
	28
	29	/* Execlists regs */
	30	#define RING_ELSP(ring) ((ring)->mmio_base+0x230)
	31	#define RING_EXECLIST_STATUS_LO(ring) ((ring)->mmio_base+0x234)
	32	#define RING_EXECLIST_STATUS_HI(ring) ((ring)->mmio_base+0x234 + 4)
	33	#define RING_CONTEXT_CONTROL(ring) ((ring)->mmio_base+0x244)
	34	#define CTX_CTRL_INHIBIT_SYN_CTX_SWITCH (1 << 3)
	35	#define CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT (1 << 0)
	36	#define CTX_CTRL_RS_CTX_ENABLE (1 << 1)
	37	#define RING_CONTEXT_STATUS_BUF_LO(ring, i) ((ring)->mmio_base+0x370 + (i) * 8)
	38	#define RING_CONTEXT_STATUS_BUF_HI(ring, i) ((ring)->mmio_base+0x370 + (i) * 8 + 4)
	39	#define RING_CONTEXT_STATUS_PTR(ring) ((ring)->mmio_base+0x3a0)
	40
	41	/* Logical Rings */
	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);
	48
	49	int logical_ring_flush_all_caches(struct drm_i915_gem_request *req);
	50	/**
	51	* intel_logical_ring_advance() - advance the ringbuffer tail
	52	* @ringbuf: Ringbuffer to advance.
	53	*
	54	* The tail is only updated in our logical ringbuffer struct.
	55	*/
	56	static inline void intel_logical_ring_advance(struct intel_ringbuffer *ringbuf)
	57	{
	58	ringbuf->tail &= ringbuf->size - 1;
	59	}
	60	/**
	61	* intel_logical_ring_emit() - write a DWORD to the ringbuffer.
	62	* @ringbuf: Ringbuffer to write to.
	63	* @data: DWORD to write.
	64	*/
	65	static inline void intel_logical_ring_emit(struct intel_ringbuffer *ringbuf,
	66	u32 data)
	67	{
	68	iowrite32(data, ringbuf->virtual_start + ringbuf->tail);
	69	ringbuf->tail += 4;
	70	}
	71	static inline void intel_logical_ring_emit_reg(struct intel_ringbuffer *ringbuf,
	72	u32 reg)
	73	{
	74	intel_logical_ring_emit(ringbuf, reg);
	75	}
	76
	77	/* Logical Ring Contexts */
	78
	79	/* One extra page is added before LRC for GuC as shared data */
	80	#define LRC_GUCSHR_PN (0)
	81	#define LRC_PPHWSP_PN (LRC_GUCSHR_PN + 1)
	82	#define LRC_STATE_PN (LRC_PPHWSP_PN + 1)
	83
	84	void intel_lr_context_free(struct intel_context *ctx);
	85	int intel_lr_context_deferred_alloc(struct intel_context *ctx,
	86	struct intel_engine_cs *ring);
	87	void intel_lr_context_unpin(struct drm_i915_gem_request *req);
	88	void intel_lr_context_reset(struct drm_device *dev,
	89	struct intel_context *ctx);
	90	uint64_t intel_lr_context_descriptor(struct intel_context *ctx,
	91	struct intel_engine_cs *ring);
	92
	93	/* Execlists */
	94	int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists);
	95	struct i915_execbuffer_params;
	96	int intel_execlists_submission(struct i915_execbuffer_params *params,
	97	struct drm_i915_gem_execbuffer2 *args,
	98	struct list_head *vmas);
	99	u32 intel_execlists_ctx_id(struct drm_i915_gem_object *ctx_obj);
	100
	101	void intel_lrc_irq_handler(struct intel_engine_cs *ring);
	102	void intel_execlists_retire_requests(struct intel_engine_cs *ring);
	103
	104	#endif /* _INTEL_LRC_H_ */