| /* |
| * 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. |
| * |
| * Authors: |
| * Ben Widawsky <ben@bwidawsk.net> |
| * Michel Thierry <michel.thierry@intel.com> |
| * Thomas Daniel <thomas.daniel@intel.com> |
| * Oscar Mateo <oscar.mateo@intel.com> |
| * |
| */ |
| |
| /* |
| * GEN8 brings an expansion of the HW contexts: "Logical Ring Contexts". |
| * These expanded contexts enable a number of new abilities, especially |
| * "Execlists" (also implemented in this file). |
| * |
| * Execlists are the new method by which, on gen8+ hardware, workloads are |
| * submitted for execution (as opposed to the legacy, ringbuffer-based, method). |
| */ |
| |
| #include <drm/drmP.h> |
| #include <drm/i915_drm.h> |
| #include "i915_drv.h" |
| |
| int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists) |
| { |
| WARN_ON(i915.enable_ppgtt == -1); |
| |
| if (enable_execlists == 0) |
| return 0; |
| |
| if (HAS_LOGICAL_RING_CONTEXTS(dev) && USES_PPGTT(dev)) |
| return 1; |
| |
| return 0; |
| } |
| |
| void intel_lr_context_free(struct intel_context *ctx) |
| { |
| /* TODO */ |
| } |
| |
| int intel_lr_context_deferred_create(struct intel_context *ctx, |
| struct intel_engine_cs *ring) |
| { |
| WARN_ON(ctx->legacy_hw_ctx.rcs_state != NULL); |
| |
| /* TODO */ |
| |
| return 0; |
| } |