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| author | Bartlomiej Zolnierkiewicz <[email protected]> | 2018-09-26 15:54:31 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <[email protected]> | 2018-09-26 15:54:31 +0200 |
| commit | aaccf3c97418f169afdbb5855e9cbcbda34e90fd (patch) | |
| tree | 5d4207e67958bdbc23288cf30178692f5534e1a0 /drivers/gpu/drm/i915/i915_gem.h | |
| parent | f39684524b391c5a7ed0ac44db4fec3357af1c5d (diff) | |
| parent | 6bf4ca7fbc85d80446ac01c0d1d77db4d91a6d84 (diff) | |
Merge tag 'v4.19-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-next
Sync with upstream (which now contains fbdev-v4.19 changes) to
prepare a base for fbdev-v4.20 changes.
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__ */ |