diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_context.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_context.h | 393 |
1 files changed, 0 insertions, 393 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_context.h b/drivers/gpu/drm/i915/i915_gem_context.h deleted file mode 100644 index ca150a764c24..000000000000 --- a/drivers/gpu/drm/i915/i915_gem_context.h +++ /dev/null @@ -1,393 +0,0 @@ -/* - * Copyright © 2016 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_GEM_CONTEXT_H__ -#define __I915_GEM_CONTEXT_H__ - -#include <linux/bitops.h> -#include <linux/list.h> -#include <linux/radix-tree.h> - -#include "i915_gem.h" -#include "i915_scheduler.h" -#include "intel_device_info.h" - -struct pid; - -struct drm_device; -struct drm_file; - -struct drm_i915_private; -struct drm_i915_file_private; -struct i915_hw_ppgtt; -struct i915_request; -struct i915_vma; -struct intel_ring; - -#define DEFAULT_CONTEXT_HANDLE 0 - -struct intel_context; - -struct intel_context_ops { - void (*unpin)(struct intel_context *ce); - void (*destroy)(struct intel_context *ce); -}; - -/* - * Powergating configuration for a particular (context,engine). - */ -struct intel_sseu { - u8 slice_mask; - u8 subslice_mask; - u8 min_eus_per_subslice; - u8 max_eus_per_subslice; -}; - -/** - * struct i915_gem_context - client state - * - * The struct i915_gem_context represents the combined view of the driver and - * logical hardware state for a particular client. - */ -struct i915_gem_context { - /** i915: i915 device backpointer */ - struct drm_i915_private *i915; - - /** file_priv: owning file descriptor */ - struct drm_i915_file_private *file_priv; - - /** - * @ppgtt: unique address space (GTT) - * - * In full-ppgtt mode, each context has its own address space ensuring - * complete seperation of one client from all others. - * - * In other modes, this is a NULL pointer with the expectation that - * the caller uses the shared global GTT. - */ - struct i915_hw_ppgtt *ppgtt; - - /** - * @pid: process id of creator - * - * Note that who created the context may not be the principle user, - * as the context may be shared across a local socket. However, - * that should only affect the default context, all contexts created - * explicitly by the client are expected to be isolated. - */ - struct pid *pid; - - /** - * @name: arbitrary name - * - * A name is constructed for the context from the creator's process - * name, pid and user handle in order to uniquely identify the - * context in messages. - */ - const char *name; - - /** link: place with &drm_i915_private.context_list */ - struct list_head link; - struct llist_node free_link; - - /** - * @ref: reference count - * - * A reference to a context is held by both the client who created it - * and on each request submitted to the hardware using the request - * (to ensure the hardware has access to the state until it has - * finished all pending writes). See i915_gem_context_get() and - * i915_gem_context_put() for access. - */ - struct kref ref; - - /** - * @rcu: rcu_head for deferred freeing. - */ - struct rcu_head rcu; - - /** - * @user_flags: small set of booleans controlled by the user - */ - unsigned long user_flags; -#define UCONTEXT_NO_ZEROMAP 0 -#define UCONTEXT_NO_ERROR_CAPTURE 1 -#define UCONTEXT_BANNABLE 2 - - /** - * @flags: small set of booleans - */ - unsigned long flags; -#define CONTEXT_BANNED 0 -#define CONTEXT_CLOSED 1 -#define CONTEXT_FORCE_SINGLE_SUBMISSION 2 - - /** - * @hw_id: - unique identifier for the context - * - * The hardware needs to uniquely identify the context for a few - * functions like fault reporting, PASID, scheduling. The - * &drm_i915_private.context_hw_ida is used to assign a unqiue - * id for the lifetime of the context. - * - * @hw_id_pin_count: - number of times this context had been pinned - * for use (should be, at most, once per engine). - * - * @hw_id_link: - all contexts with an assigned id are tracked - * for possible repossession. - */ - unsigned int hw_id; - atomic_t hw_id_pin_count; - struct list_head hw_id_link; - - /** - * @user_handle: userspace identifier - * - * A unique per-file identifier is generated from - * &drm_i915_file_private.contexts. - */ - u32 user_handle; - - struct i915_sched_attr sched; - - /** engine: per-engine logical HW state */ - struct intel_context { - struct i915_gem_context *gem_context; - struct intel_engine_cs *active; - struct list_head signal_link; - struct list_head signals; - struct i915_vma *state; - struct intel_ring *ring; - u32 *lrc_reg_state; - u64 lrc_desc; - int pin_count; - - /** - * active_tracker: Active tracker for the external rq activity - * on this intel_context object. - */ - struct i915_active_request active_tracker; - - const struct intel_context_ops *ops; - - /** sseu: Control eu/slice partitioning */ - struct intel_sseu sseu; - } __engine[I915_NUM_ENGINES]; - - /** ring_size: size for allocating the per-engine ring buffer */ - u32 ring_size; - /** desc_template: invariant fields for the HW context descriptor */ - u32 desc_template; - - /** guilty_count: How many times this context has caused a GPU hang. */ - atomic_t guilty_count; - /** - * @active_count: How many times this context was active during a GPU - * hang, but did not cause it. - */ - atomic_t active_count; - -#define CONTEXT_SCORE_GUILTY 10 -#define CONTEXT_SCORE_BAN_THRESHOLD 40 - /** ban_score: Accumulated score of all hangs caused by this context. */ - atomic_t ban_score; - - /** remap_slice: Bitmask of cache lines that need remapping */ - u8 remap_slice; - - /** handles_vma: rbtree to look up our context specific obj/vma for - * the user handle. (user handles are per fd, but the binding is - * per vm, which may be one per context or shared with the global GTT) - */ - struct radix_tree_root handles_vma; - - /** handles_list: reverse list of all the rbtree entries in use for - * this context, which allows us to free all the allocations on - * context close. - */ - struct list_head handles_list; -}; - -static inline bool i915_gem_context_is_closed(const struct i915_gem_context *ctx) -{ - return test_bit(CONTEXT_CLOSED, &ctx->flags); -} - -static inline void i915_gem_context_set_closed(struct i915_gem_context *ctx) -{ - GEM_BUG_ON(i915_gem_context_is_closed(ctx)); - set_bit(CONTEXT_CLOSED, &ctx->flags); -} - -static inline bool i915_gem_context_no_error_capture(const struct i915_gem_context *ctx) -{ - return test_bit(UCONTEXT_NO_ERROR_CAPTURE, &ctx->user_flags); -} - -static inline void i915_gem_context_set_no_error_capture(struct i915_gem_context *ctx) -{ - set_bit(UCONTEXT_NO_ERROR_CAPTURE, &ctx->user_flags); -} - -static inline void i915_gem_context_clear_no_error_capture(struct i915_gem_context *ctx) -{ - clear_bit(UCONTEXT_NO_ERROR_CAPTURE, &ctx->user_flags); -} - -static inline bool i915_gem_context_is_bannable(const struct i915_gem_context *ctx) -{ - return test_bit(UCONTEXT_BANNABLE, &ctx->user_flags); -} - -static inline void i915_gem_context_set_bannable(struct i915_gem_context *ctx) -{ - set_bit(UCONTEXT_BANNABLE, &ctx->user_flags); -} - -static inline void i915_gem_context_clear_bannable(struct i915_gem_context *ctx) -{ - clear_bit(UCONTEXT_BANNABLE, &ctx->user_flags); -} - -static inline bool i915_gem_context_is_banned(const struct i915_gem_context *ctx) -{ - return test_bit(CONTEXT_BANNED, &ctx->flags); -} - -static inline void i915_gem_context_set_banned(struct i915_gem_context *ctx) -{ - set_bit(CONTEXT_BANNED, &ctx->flags); -} - -static inline bool i915_gem_context_force_single_submission(const struct i915_gem_context *ctx) -{ - return test_bit(CONTEXT_FORCE_SINGLE_SUBMISSION, &ctx->flags); -} - -static inline void i915_gem_context_set_force_single_submission(struct i915_gem_context *ctx) -{ - __set_bit(CONTEXT_FORCE_SINGLE_SUBMISSION, &ctx->flags); -} - -int __i915_gem_context_pin_hw_id(struct i915_gem_context *ctx); -static inline int i915_gem_context_pin_hw_id(struct i915_gem_context *ctx) -{ - if (atomic_inc_not_zero(&ctx->hw_id_pin_count)) - return 0; - - return __i915_gem_context_pin_hw_id(ctx); -} - -static inline void i915_gem_context_unpin_hw_id(struct i915_gem_context *ctx) -{ - GEM_BUG_ON(atomic_read(&ctx->hw_id_pin_count) == 0u); - atomic_dec(&ctx->hw_id_pin_count); -} - -static inline bool i915_gem_context_is_default(const struct i915_gem_context *c) -{ - return c->user_handle == DEFAULT_CONTEXT_HANDLE; -} - -static inline bool i915_gem_context_is_kernel(struct i915_gem_context *ctx) -{ - return !ctx->file_priv; -} - -static inline struct intel_context * -to_intel_context(struct i915_gem_context *ctx, - const struct intel_engine_cs *engine) -{ - return &ctx->__engine[engine->id]; -} - -static inline struct intel_context * -intel_context_pin(struct i915_gem_context *ctx, struct intel_engine_cs *engine) -{ - return engine->context_pin(engine, ctx); -} - -static inline void __intel_context_pin(struct intel_context *ce) -{ - GEM_BUG_ON(!ce->pin_count); - ce->pin_count++; -} - -static inline void intel_context_unpin(struct intel_context *ce) -{ - GEM_BUG_ON(!ce->pin_count); - if (--ce->pin_count) - return; - - GEM_BUG_ON(!ce->ops); - ce->ops->unpin(ce); -} - -/* i915_gem_context.c */ -int __must_check i915_gem_contexts_init(struct drm_i915_private *dev_priv); -void i915_gem_contexts_lost(struct drm_i915_private *dev_priv); -void i915_gem_contexts_fini(struct drm_i915_private *dev_priv); - -int i915_gem_context_open(struct drm_i915_private *i915, - struct drm_file *file); -void i915_gem_context_close(struct drm_file *file); - -int i915_switch_context(struct i915_request *rq); -int i915_gem_switch_to_kernel_context(struct drm_i915_private *dev_priv); - -void i915_gem_context_release(struct kref *ctx_ref); -struct i915_gem_context * -i915_gem_context_create_gvt(struct drm_device *dev); - -int i915_gem_context_create_ioctl(struct drm_device *dev, void *data, - struct drm_file *file); -int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data, - struct drm_file *file); -int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int i915_gem_context_reset_stats_ioctl(struct drm_device *dev, void *data, - struct drm_file *file); - -struct i915_gem_context * -i915_gem_context_create_kernel(struct drm_i915_private *i915, int prio); - -static inline struct i915_gem_context * -i915_gem_context_get(struct i915_gem_context *ctx) -{ - kref_get(&ctx->ref); - return ctx; -} - -static inline void i915_gem_context_put(struct i915_gem_context *ctx) -{ - kref_put(&ctx->ref, i915_gem_context_release); -} - -void intel_context_init(struct intel_context *ce, - struct i915_gem_context *ctx, - struct intel_engine_cs *engine); - -#endif /* !__I915_GEM_CONTEXT_H__ */ |