G_028800_Z_WRITE_ENABLE 1889 drivers/gpu/drm/radeon/evergreend.h #define   G_028800_Z_WRITE_ENABLE(x)                   (((x) >> 2) & 0x1)
G_028800_Z_WRITE_ENABLE 2337 drivers/gpu/drm/radeon/r600d.h #define   G_028800_Z_WRITE_ENABLE(x)                   (((x) >> 2) & 0x1)