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/*
* SPDX-License-Identifier: MIT
*
* Copyright © 2016 Intel Corporation
*/
#ifndef __I915_GEM_CONTEXT_H__
#define __I915_GEM_CONTEXT_H__
#include "i915_gem_context_types.h"
#include "gt/intel_context.h"
#include "i915_gem.h"
#include "i915_scheduler.h"
#include "intel_device_info.h"
struct drm_device;
struct drm_file;
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_recoverable(const struct i915_gem_context *ctx)
{
return test_bit(UCONTEXT_RECOVERABLE, &ctx->user_flags);
}
static inline void i915_gem_context_set_recoverable(struct i915_gem_context *ctx)
{
set_bit(UCONTEXT_RECOVERABLE, &ctx->user_flags);
}
static inline void i915_gem_context_clear_recoverable(struct i915_gem_context *ctx)
{
clear_bit(UCONTEXT_RECOVERABLE, &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);
}
static inline bool
i915_gem_context_user_engines(const struct i915_gem_context *ctx)
{
return test_bit(CONTEXT_USER_ENGINES, &ctx->flags);
}
static inline void
i915_gem_context_set_user_engines(struct i915_gem_context *ctx)
{
set_bit(CONTEXT_USER_ENGINES, &ctx->flags);
}
static inline void
i915_gem_context_clear_user_engines(struct i915_gem_context *ctx)
{
clear_bit(CONTEXT_USER_ENGINES, &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_kernel(struct i915_gem_context *ctx)
{
return !ctx->file_priv;
}
/* i915_gem_context.c */
int __must_check i915_gem_contexts_init(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);
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_vm_create_ioctl(struct drm_device *dev, void *data,
struct drm_file *file);
int i915_gem_vm_destroy_ioctl(struct drm_device *dev, void *data,
struct drm_file *file);
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);
}
static inline struct i915_gem_engines *
i915_gem_context_engines(struct i915_gem_context *ctx)
{
return rcu_dereference_protected(ctx->engines,
lockdep_is_held(&ctx->engines_mutex));
}
static inline struct i915_gem_engines *
i915_gem_context_lock_engines(struct i915_gem_context *ctx)
__acquires(&ctx->engines_mutex)
{
mutex_lock(&ctx->engines_mutex);
return i915_gem_context_engines(ctx);
}
static inline void
i915_gem_context_unlock_engines(struct i915_gem_context *ctx)
__releases(&ctx->engines_mutex)
{
mutex_unlock(&ctx->engines_mutex);
}
static inline struct intel_context *
i915_gem_context_lookup_engine(struct i915_gem_context *ctx, unsigned int idx)
{
return i915_gem_context_engines(ctx)->engines[idx];
}
static inline struct intel_context *
i915_gem_context_get_engine(struct i915_gem_context *ctx, unsigned int idx)
{
struct intel_context *ce = ERR_PTR(-EINVAL);
rcu_read_lock(); {
struct i915_gem_engines *e = rcu_dereference(ctx->engines);
if (likely(idx < e->num_engines && e->engines[idx]))
ce = intel_context_get(e->engines[idx]);
} rcu_read_unlock();
return ce;
}
static inline void
i915_gem_engines_iter_init(struct i915_gem_engines_iter *it,
struct i915_gem_engines *engines)
{
GEM_BUG_ON(!engines);
it->engines = engines;
it->idx = 0;
}
struct intel_context *
i915_gem_engines_iter_next(struct i915_gem_engines_iter *it);
#define for_each_gem_engine(ce, engines, it) \
for (i915_gem_engines_iter_init(&(it), (engines)); \
((ce) = i915_gem_engines_iter_next(&(it)));)
struct i915_lut_handle *i915_lut_handle_alloc(void);
void i915_lut_handle_free(struct i915_lut_handle *lut);
#endif /* !__I915_GEM_CONTEXT_H__ */
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