| /* |
| * SPDX-License-Identifier: MIT |
| * |
| * Copyright © 2019 Intel Corporation |
| */ |
| |
| #ifndef __INTEL_CONTEXT_TYPES__ |
| #define __INTEL_CONTEXT_TYPES__ |
| |
| #include <linux/kref.h> |
| #include <linux/list.h> |
| #include <linux/mutex.h> |
| #include <linux/types.h> |
| |
| #include "i915_active_types.h" |
| #include "i915_utils.h" |
| #include "intel_engine_types.h" |
| #include "intel_sseu.h" |
| |
| struct i915_gem_context; |
| struct i915_vma; |
| struct intel_context; |
| struct intel_ring; |
| |
| struct intel_context_ops { |
| int (*alloc)(struct intel_context *ce); |
| |
| int (*pin)(struct intel_context *ce); |
| void (*unpin)(struct intel_context *ce); |
| |
| void (*enter)(struct intel_context *ce); |
| void (*exit)(struct intel_context *ce); |
| |
| void (*reset)(struct intel_context *ce); |
| void (*destroy)(struct kref *kref); |
| }; |
| |
| struct intel_context { |
| struct kref ref; |
| |
| struct intel_engine_cs *engine; |
| struct intel_engine_cs *inflight; |
| #define intel_context_inflight(ce) ptr_mask_bits((ce)->inflight, 2) |
| #define intel_context_inflight_count(ce) ptr_unmask_bits((ce)->inflight, 2) |
| |
| struct i915_address_space *vm; |
| struct i915_gem_context *gem_context; |
| |
| struct list_head signal_link; |
| struct list_head signals; |
| |
| struct i915_vma *state; |
| struct intel_ring *ring; |
| struct intel_timeline *timeline; |
| |
| unsigned long flags; |
| #define CONTEXT_ALLOC_BIT 0 |
| |
| u32 *lrc_reg_state; |
| u64 lrc_desc; |
| u32 tag; /* cookie passed to HW to track this context on submission */ |
| |
| unsigned int active_count; /* protected by timeline->mutex */ |
| |
| atomic_t pin_count; |
| struct mutex pin_mutex; /* guards pinning and associated on-gpuing */ |
| |
| /** |
| * active: Active tracker for the rq activity (inc. external) on this |
| * intel_context object. |
| */ |
| struct i915_active active; |
| |
| const struct intel_context_ops *ops; |
| |
| /** sseu: Control eu/slice partitioning */ |
| struct intel_sseu sseu; |
| }; |
| |
| #endif /* __INTEL_CONTEXT_TYPES__ */ |