diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display_utils.h')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_utils.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_utils.h b/drivers/gpu/drm/i915/display/intel_display_utils.h index af1e34bac720..2a18f160320c 100644 --- a/drivers/gpu/drm/i915/display/intel_display_utils.h +++ b/drivers/gpu/drm/i915/display/intel_display_utils.h @@ -4,10 +4,24 @@ #ifndef __INTEL_DISPLAY_UTILS__ #define __INTEL_DISPLAY_UTILS__ +#include <linux/bug.h> #include <linux/types.h> struct intel_display; +#ifndef MISSING_CASE +#define MISSING_CASE(x) WARN(1, "Missing case (%s == %ld)\n", \ + __stringify(x), (long)(x)) +#endif + +#ifndef fetch_and_zero +#define fetch_and_zero(ptr) ({ \ + typeof(*ptr) __T = *(ptr); \ + *(ptr) = (typeof(*ptr))0; \ + __T; \ +}) +#endif + #define KHz(x) (1000 * (x)) #define MHz(x) KHz(1000 * (x)) |