C_028800_STENCILFAIL 1910 drivers/gpu/drm/radeon/evergreend.h #define   C_028800_STENCILFAIL                         0xFFFFC7FF
C_028800_STENCILFAIL 2350 drivers/gpu/drm/radeon/r600d.h #define   C_028800_STENCILFAIL                         0xFFFFC7FF