forked from Minki/linux
faf654864b
With the code motion mostly done, convert all the uC code away from uint??_t at once (only a couple dozen variables), so that reading the checkpatch.pl output should actually pinpoint if a new uint??_t was accidentally introduced. v2: - Include intel_uc_fw.h too (Sagar) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Michał Winiarski <michal.winiarski@intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171006084940.15910-1-joonas.lahtinen@linux.intel.com
81 lines
3.2 KiB
C
81 lines
3.2 KiB
C
/*
|
|
* Copyright © 2014-2017 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 _I915_GUC_SUBMISSION_H_
|
|
#define _I915_GUC_SUBMISSION_H_
|
|
|
|
#include <linux/spinlock.h>
|
|
|
|
#include "i915_gem.h"
|
|
|
|
struct drm_i915_private;
|
|
|
|
/*
|
|
* This structure primarily describes the GEM object shared with the GuC.
|
|
* The specs sometimes refer to this object as a "GuC context", but we use
|
|
* the term "client" to avoid confusion with hardware contexts. This
|
|
* GEM object is held for the entire lifetime of our interaction with
|
|
* the GuC, being allocated before the GuC is loaded with its firmware.
|
|
* Because there's no way to update the address used by the GuC after
|
|
* initialisation, the shared object must stay pinned into the GGTT as
|
|
* long as the GuC is in use. We also keep the first page (only) mapped
|
|
* into kernel address space, as it includes shared data that must be
|
|
* updated on every request submission.
|
|
*
|
|
* The single GEM object described here is actually made up of several
|
|
* separate areas, as far as the GuC is concerned. The first page (kept
|
|
* kmap'd) includes the "process descriptor" which holds sequence data for
|
|
* the doorbell, and one cacheline which actually *is* the doorbell; a
|
|
* write to this will "ring the doorbell" (i.e. send an interrupt to the
|
|
* GuC). The subsequent pages of the client object constitute the work
|
|
* queue (a circular array of work items), again described in the process
|
|
* descriptor. Work queue pages are mapped momentarily as required.
|
|
*/
|
|
struct i915_guc_client {
|
|
struct i915_vma *vma;
|
|
void *vaddr;
|
|
struct i915_gem_context *owner;
|
|
struct intel_guc *guc;
|
|
|
|
/* bitmap of (host) engine ids */
|
|
u32 engines;
|
|
u32 priority;
|
|
u32 stage_id;
|
|
u32 proc_desc_offset;
|
|
|
|
u16 doorbell_id;
|
|
unsigned long doorbell_offset;
|
|
|
|
spinlock_t wq_lock;
|
|
/* Per-engine counts of GuC submissions */
|
|
u64 submissions[I915_NUM_ENGINES];
|
|
};
|
|
|
|
int i915_guc_submission_init(struct drm_i915_private *dev_priv);
|
|
int i915_guc_submission_enable(struct drm_i915_private *dev_priv);
|
|
void i915_guc_submission_disable(struct drm_i915_private *dev_priv);
|
|
void i915_guc_submission_fini(struct drm_i915_private *dev_priv);
|
|
|
|
#endif
|