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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-06-21 19:38:01 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-06-21 19:48:00 +0100 |
| commit | fb993aa7a4049263fc1a139daf89fadc79a0ecc7 (patch) | |
| tree | 245d06f1c0b7694b8162dba0d6e68c56a85a9a51 /drivers/gpu/drm/i915/intel_wakeref.h | |
| parent | 12c255b5dad115e87f81ea45708b5f82b9a55253 (diff) | |
| download | linux-fb993aa7a4049263fc1a139daf89fadc79a0ecc7.tar.gz | |
drm/i915: Local debug BUG_ON for intel_wakeref
Avoid pulling in i915_gem.h just so that we can use a conditional BUG_ON for debugging. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190621183801.23252-5-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_wakeref.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_wakeref.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_wakeref.h b/drivers/gpu/drm/i915/intel_wakeref.h index 9cbb2ebf575b..d45e78639dc4 100644 --- a/drivers/gpu/drm/i915/intel_wakeref.h +++ b/drivers/gpu/drm/i915/intel_wakeref.h @@ -13,6 +13,12 @@ #include <linux/stackdepot.h> #include <linux/timer.h> +#if IS_ENABLED(CONFIG_DRM_I915_DEBUG) +#define INTEL_WAKEREF_BUG_ON(expr) BUG_ON(expr) +#else +#define INTEL_WAKEREF_BUG_ON(expr) BUILD_BUG_ON_INVALID(expr) +#endif + struct intel_runtime_pm; typedef depot_stack_handle_t intel_wakeref_t; @@ -86,6 +92,7 @@ intel_wakeref_put(struct intel_runtime_pm *rpm, struct intel_wakeref *wf, int (*fn)(struct intel_wakeref *wf)) { + INTEL_WAKEREF_BUG_ON(atomic_read(&wf->count) <= 0); if (atomic_dec_and_mutex_lock(&wf->count, &wf->mutex)) return __intel_wakeref_put_last(rpm, wf, fn); |