diff options
author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
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committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/gpu/drm/i915/intel_mocs.h | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/i915/intel_mocs.h')
-rw-r--r-- | kernel/drivers/gpu/drm/i915/intel_mocs.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/i915/intel_mocs.h b/kernel/drivers/gpu/drm/i915/intel_mocs.h new file mode 100644 index 000000000..76e45b174 --- /dev/null +++ b/kernel/drivers/gpu/drm/i915/intel_mocs.h @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2015 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_MOCS_H +#define INTEL_MOCS_H + +/** + * DOC: Memory Objects Control State (MOCS) + * + * Motivation: + * In previous Gens the MOCS settings was a value that was set by user land as + * part of the batch. In Gen9 this has changed to be a single table (per ring) + * that all batches now reference by index instead of programming the MOCS + * directly. + * + * The one wrinkle in this is that only PART of the MOCS tables are included + * in context (The GFX_MOCS_0 - GFX_MOCS_64 and the LNCFCMOCS0 - LNCFCMOCS32 + * registers). The rest are not (the settings for the other rings). + * + * This table needs to be set at system start-up because the way the table + * interacts with the contexts and the GmmLib interface. + * + * + * Implementation: + * + * The tables (one per supported platform) are defined in intel_mocs.c + * and are programmed in the first batch after the context is loaded + * (with the hardware workarounds). This will then let the usual + * context handling keep the MOCS in step. + */ + +#include <drm/drmP.h> +#include "i915_drv.h" + +int intel_rcs_context_init_mocs(struct drm_i915_gem_request *req); + +#endif |