| Peter Antoine | 3bbaba0 | 2015-07-10 20:13:11 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2015 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 FROM, |
| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 21 | * SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #ifndef INTEL_MOCS_H |
| 25 | #define INTEL_MOCS_H |
| 26 | |
| 27 | /** |
| 28 | * DOC: Memory Objects Control State (MOCS) |
| 29 | * |
| 30 | * Motivation: |
| 31 | * In previous Gens the MOCS settings was a value that was set by user land as |
| 32 | * part of the batch. In Gen9 this has changed to be a single table (per ring) |
| 33 | * that all batches now reference by index instead of programming the MOCS |
| 34 | * directly. |
| 35 | * |
| 36 | * The one wrinkle in this is that only PART of the MOCS tables are included |
| 37 | * in context (The GFX_MOCS_0 - GFX_MOCS_64 and the LNCFCMOCS0 - LNCFCMOCS32 |
| 38 | * registers). The rest are not (the settings for the other rings). |
| 39 | * |
| 40 | * This table needs to be set at system start-up because the way the table |
| 41 | * interacts with the contexts and the GmmLib interface. |
| 42 | * |
| 43 | * |
| 44 | * Implementation: |
| 45 | * |
| 46 | * The tables (one per supported platform) are defined in intel_mocs.c |
| 47 | * and are programmed in the first batch after the context is loaded |
| 48 | * (with the hardware workarounds). This will then let the usual |
| 49 | * context handling keep the MOCS in step. |
| 50 | */ |
| 51 | |
| 52 | #include <drm/drmP.h> |
| 53 | #include "i915_drv.h" |
| 54 | |
| 55 | int intel_rcs_context_init_mocs(struct drm_i915_gem_request *req); |
| 56 | |
| 57 | #endif |