5f19e2bffa
The do_execbuf() function takes quite a few parameters. The actual set of parameters is going to change with the conversion to passing requests around. Further, it is due to grow massively with the arrival of the GPU scheduler. This patch simplifies the prototype by passing a parameter structure instead. Changing the parameter set in the future is then simply a matter of adding/removing items to the structure. Note that the structure does not contain absolutely everything that is passed in. This is because the intention is to use this structure more extensively later in this patch series and more especially in the GPU scheduler that is coming soon. The latter requires hanging on to the structure as the final hardware submission can be delayed until long after the execbuf IOCTL has returned to user land. Thus it is unsafe to put anything in the structure that is local to the IOCTL call itself - such as the 'args' parameter. All entries must be copies of data or pointers to structures that are reference counted in some way and guaranteed to exist for the duration of the batch buffer's life. v2: Rebased to newer tree and updated for changes to the command parser. Specifically, a code shuffle has required saving the batch start address in the params structure. For: VIZ-5115 Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: Tomas Elf <tomas.elf@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
89 lines
3.4 KiB
C
89 lines
3.4 KiB
C
/*
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* Copyright © 2014 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _INTEL_LRC_H_
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#define _INTEL_LRC_H_
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#define GEN8_LR_CONTEXT_ALIGN 4096
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/* Execlists regs */
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#define RING_ELSP(ring) ((ring)->mmio_base+0x230)
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#define RING_EXECLIST_STATUS(ring) ((ring)->mmio_base+0x234)
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#define RING_CONTEXT_CONTROL(ring) ((ring)->mmio_base+0x244)
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#define CTX_CTRL_INHIBIT_SYN_CTX_SWITCH (1 << 3)
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#define CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT (1 << 0)
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#define RING_CONTEXT_STATUS_BUF(ring) ((ring)->mmio_base+0x370)
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#define RING_CONTEXT_STATUS_PTR(ring) ((ring)->mmio_base+0x3a0)
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/* Logical Rings */
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int intel_logical_ring_alloc_request_extras(struct drm_i915_gem_request *request);
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void intel_logical_ring_stop(struct intel_engine_cs *ring);
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void intel_logical_ring_cleanup(struct intel_engine_cs *ring);
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int intel_logical_rings_init(struct drm_device *dev);
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int logical_ring_flush_all_caches(struct intel_ringbuffer *ringbuf,
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struct intel_context *ctx);
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/**
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* intel_logical_ring_advance() - advance the ringbuffer tail
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* @ringbuf: Ringbuffer to advance.
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*
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* The tail is only updated in our logical ringbuffer struct.
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*/
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static inline void intel_logical_ring_advance(struct intel_ringbuffer *ringbuf)
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{
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ringbuf->tail &= ringbuf->size - 1;
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}
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/**
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* intel_logical_ring_emit() - write a DWORD to the ringbuffer.
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* @ringbuf: Ringbuffer to write to.
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* @data: DWORD to write.
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*/
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static inline void intel_logical_ring_emit(struct intel_ringbuffer *ringbuf,
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u32 data)
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{
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iowrite32(data, ringbuf->virtual_start + ringbuf->tail);
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ringbuf->tail += 4;
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}
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/* Logical Ring Contexts */
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void intel_lr_context_free(struct intel_context *ctx);
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int intel_lr_context_deferred_create(struct intel_context *ctx,
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struct intel_engine_cs *ring);
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void intel_lr_context_unpin(struct intel_engine_cs *ring,
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struct intel_context *ctx);
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void intel_lr_context_reset(struct drm_device *dev,
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struct intel_context *ctx);
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/* Execlists */
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int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists);
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struct i915_execbuffer_params;
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int intel_execlists_submission(struct i915_execbuffer_params *params,
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struct drm_i915_gem_execbuffer2 *args,
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struct list_head *vmas);
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u32 intel_execlists_ctx_id(struct drm_i915_gem_object *ctx_obj);
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void intel_lrc_irq_handler(struct intel_engine_cs *ring);
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void intel_execlists_retire_requests(struct intel_engine_cs *ring);
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#endif /* _INTEL_LRC_H_ */
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