diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.h b/drivers/gpu/drm/i915/i915_gem.h index 525920404ede..e46592956872 100644 --- a/drivers/gpu/drm/i915/i915_gem.h +++ b/drivers/gpu/drm/i915/i915_gem.h @@ -26,6 +26,7 @@ #define __I915_GEM_H__ #include <linux/bug.h> +#include <linux/interrupt.h> struct drm_i915_private; @@ -62,9 +63,12 @@ struct drm_i915_private; #if IS_ENABLED(CONFIG_DRM_I915_TRACE_GEM) #define GEM_TRACE(...) trace_printk(__VA_ARGS__) #define GEM_TRACE_DUMP() ftrace_dump(DUMP_ALL) +#define GEM_TRACE_DUMP_ON(expr) \ + do { if (expr) ftrace_dump(DUMP_ALL); } while (0) #else #define GEM_TRACE(...) do { } while (0) #define GEM_TRACE_DUMP() do { } while (0) +#define GEM_TRACE_DUMP_ON(expr) BUILD_BUG_ON_INVALID(expr) #endif #define I915_NUM_ENGINES 8 @@ -72,4 +76,21 @@ struct drm_i915_private; void i915_gem_park(struct drm_i915_private *i915); void i915_gem_unpark(struct drm_i915_private *i915); +static inline void __tasklet_disable_sync_once(struct tasklet_struct *t) +{ + if (atomic_inc_return(&t->count) == 1) + tasklet_unlock_wait(t); +} + +static inline void __tasklet_enable_sync_once(struct tasklet_struct *t) +{ + if (atomic_dec_return(&t->count) == 0) + tasklet_kill(t); +} + +static inline bool __tasklet_is_enabled(const struct tasklet_struct *t) +{ + return !atomic_read(&t->count); +} + #endif /* __I915_GEM_H__ */ |