projects / thirdparty / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b20385f1 OM |
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 DEALINGS | |
| 21 | * IN THE SOFTWARE. | |
| 22 | * | |
| 23 | * Authors: | |
| 24 | * Ben Widawsky <ben@bwidawsk.net> | |
| 25 | * Michel Thierry <michel.thierry@intel.com> | |
| 26 | * Thomas Daniel <thomas.daniel@intel.com> | |
| 27 | * Oscar Mateo <oscar.mateo@intel.com> | |
| 28 | * | |
| 29 | */ | |
| 30 | ||
| 31 | /* | |
| 32 | * GEN8 brings an expansion of the HW contexts: "Logical Ring Contexts". | |
| 33 | * These expanded contexts enable a number of new abilities, especially | |
| 34 | * "Execlists" (also implemented in this file). | |
| 35 | * | |
| 36 | * Execlists are the new method by which, on gen8+ hardware, workloads are | |
| 37 | * submitted for execution (as opposed to the legacy, ringbuffer-based, method). | |
| 38 | */ | |
| 39 | ||
| 40 | #include <drm/drmP.h> | |
| 41 | #include <drm/i915_drm.h> | |
| 42 | #include "i915_drv.h" | |
| 127f1003 OM |
43 | |
| 44 | int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists) | |
| 45 | { | |
| bd84b1e9 DV |
46 | WARN_ON(i915.enable_ppgtt == -1); |
| 47 | ||
| 127f1003 OM |
48 | if (enable_execlists == 0) |
| 49 | return 0; | |
| 50 | ||
| 51 | if (HAS_LOGICAL_RING_CONTEXTS(dev) && USES_PPGTT(dev)) | |
| 52 | return 1; | |
| 53 | ||
| 54 | return 0; | |
| 55 | } | |
| ede7d42b OM |
56 | |
| 57 | void intel_lr_context_free(struct intel_context *ctx) | |
| 58 | { | |
| 59 | /* TODO */ | |
| 60 | } | |
| 61 | ||
| 62 | int intel_lr_context_deferred_create(struct intel_context *ctx, | |
| 63 | struct intel_engine_cs *ring) | |
| 64 | { | |
| 65 | WARN_ON(ctx->legacy_hw_ctx.rcs_state != NULL); | |
| 66 | ||
| 67 | /* TODO */ | |
| 68 | ||
| 69 | return 0; | |
| 70 | } |