GDT_CHICKEN_BITS 1642 drivers/gpu/drm/i915/i915_perf.c I915_WRITE(GDT_CHICKEN_BITS, (I915_READ(GDT_CHICKEN_BITS) & GDT_CHICKEN_BITS 2005 drivers/gpu/drm/i915/i915_perf.c I915_WRITE(GDT_CHICKEN_BITS, (I915_READ(GDT_CHICKEN_BITS) &