diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_context.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_context.h | 79 |
1 files changed, 44 insertions, 35 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_context.h b/drivers/gpu/drm/i915/i915_gem_context.h index 82c99ba92ad3..44688e22a5c2 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.h +++ b/drivers/gpu/drm/i915/i915_gem_context.h @@ -27,6 +27,7 @@ #include <linux/bitops.h> #include <linux/list.h> +#include <linux/radix-tree.h> struct pid; @@ -86,6 +87,7 @@ struct i915_gem_context { /** link: place with &drm_i915_private.context_list */ struct list_head link; + struct llist_node free_link; /** * @ref: reference count @@ -99,6 +101,11 @@ struct i915_gem_context { struct kref ref; /** + * @rcu: rcu_head for deferred freeing. + */ + struct rcu_head rcu; + + /** * @flags: small set of booleans */ unsigned long flags; @@ -143,32 +150,6 @@ struct i915_gem_context { /** ggtt_offset_bias: placement restriction for context objects */ u32 ggtt_offset_bias; - struct i915_gem_context_vma_lut { - /** ht_size: last request size to allocate the hashtable for. */ - unsigned int ht_size; -#define I915_CTX_RESIZE_IN_PROGRESS BIT(0) - /** ht_bits: real log2(size) of hashtable. */ - unsigned int ht_bits; - /** ht_count: current number of entries inside the hashtable */ - unsigned int ht_count; - - /** ht: the array of buckets comprising the simple hashtable */ - struct hlist_head *ht; - - /** - * resize: After an execbuf completes, we check the load factor - * of the hashtable. If the hashtable is too full, or too empty, - * we schedule a task to resize the hashtable. During the - * resize, the entries are moved between different buckets and - * so we cannot simultaneously read the hashtable as it is - * being resized (unlike rhashtable). Therefore we treat the - * active work as a strong barrier, pausing a subsequent - * execbuf to wait for the resize worker to complete, if - * required. - */ - struct work_struct resize; - } vma_lut; - /** engine: per-engine logical HW state */ struct intel_context { struct i915_vma *state; @@ -185,20 +166,32 @@ struct i915_gem_context { u32 desc_template; /** guilty_count: How many times this context has caused a GPU hang. */ - unsigned int guilty_count; + atomic_t guilty_count; /** * @active_count: How many times this context was active during a GPU * hang, but did not cause it. */ - unsigned int active_count; + 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. */ - int ban_score; + 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) @@ -273,14 +266,18 @@ static inline bool i915_gem_context_is_kernel(struct i915_gem_context *ctx) } /* i915_gem_context.c */ -int __must_check i915_gem_context_init(struct drm_i915_private *dev_priv); -void i915_gem_context_lost(struct drm_i915_private *dev_priv); -void i915_gem_context_fini(struct drm_i915_private *dev_priv); -int i915_gem_context_open(struct drm_device *dev, struct drm_file *file); -void i915_gem_context_close(struct drm_device *dev, struct drm_file *file); +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 drm_i915_gem_request *req); int i915_gem_switch_to_kernel_context(struct drm_i915_private *dev_priv); -void i915_gem_context_free(struct kref *ctx_ref); + +void i915_gem_context_release(struct kref *ctx_ref); struct i915_gem_context * i915_gem_context_create_gvt(struct drm_device *dev); @@ -295,4 +292,16 @@ int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data, int i915_gem_context_reset_stats_ioctl(struct drm_device *dev, void *data, struct drm_file *file); +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); +} + #endif /* !__I915_GEM_CONTEXT_H__ */ |