Symbol: PS_WIN_YPOS_MASK
drivers/gpu/drm/i915/display/intel_display_regs.h
1293
#define PS_WIN_YPOS(y) REG_FIELD_PREP(PS_WIN_YPOS_MASK, (y))
drivers/gpu/drm/i915/display/skl_scaler.c
987
REG_FIELD_GET(PS_WIN_YPOS_MASK, pos),