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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2018-10-01 17:47:54 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-10-01 22:34:21 +0300 |
| commit | e2f3496e93be3238de2e2e6bfc83b3a83c084ce5 (patch) | |
| tree | d231482d8b3f4a2343484673692754d2ecd2c7d8 /drivers/gpu/drm/i915/i915_scheduler.h | |
| parent | b16c765122f987056e1dc9ef6c214571bb5bd694 (diff) | |
| download | linux-e2f3496e93be3238de2e2e6bfc83b3a83c084ce5.tar.xz | |
drm/i915: Pull scheduling under standalone lock
Currently, the backend scheduling code abuses struct_mutex into order to
have a global lock to manipulate a temporary list (without widespread
allocation) and to protect against list modifications. This is an
extraneous coupling to struct_mutex and further can not extend beyond
the local device.
Pull all the code that needs to be under the one true lock into
i915_scheduler.c, and make it so.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181001144755.7978-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_scheduler.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_scheduler.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_scheduler.h b/drivers/gpu/drm/i915/i915_scheduler.h index 53dc7dbf88b9..68d84a45ad7f 100644 --- a/drivers/gpu/drm/i915/i915_scheduler.h +++ b/drivers/gpu/drm/i915/i915_scheduler.h @@ -8,9 +8,14 @@ #define _I915_SCHEDULER_H_ #include <linux/bitops.h> +#include <linux/kernel.h> #include <uapi/drm/i915_drm.h> +struct drm_i915_private; +struct i915_request; +struct intel_engine_cs; + enum { I915_PRIORITY_MIN = I915_CONTEXT_MIN_USER_PRIORITY - 1, I915_PRIORITY_NORMAL = I915_CONTEXT_DEFAULT_PRIORITY, @@ -77,4 +82,24 @@ struct i915_dependency { #define I915_DEPENDENCY_ALLOC BIT(0) }; +void i915_sched_node_init(struct i915_sched_node *node); + +bool __i915_sched_node_add_dependency(struct i915_sched_node *node, + struct i915_sched_node *signal, + struct i915_dependency *dep, + unsigned long flags); + +int i915_sched_node_add_dependency(struct drm_i915_private *i915, + struct i915_sched_node *node, + struct i915_sched_node *signal); + +void i915_sched_node_fini(struct drm_i915_private *i915, + struct i915_sched_node *node); + +void i915_schedule(struct i915_request *request, + const struct i915_sched_attr *attr); + +struct list_head * +i915_sched_lookup_priolist(struct intel_engine_cs *engine, int prio); + #endif /* _I915_SCHEDULER_H_ */ |