G_028800_Z_ENABLE 1886 drivers/gpu/drm/radeon/evergreend.h #define   G_028800_Z_ENABLE(x)                         (((x) >> 1) & 0x1)
G_028800_Z_ENABLE 2334 drivers/gpu/drm/radeon/r600d.h #define   G_028800_Z_ENABLE(x)                         (((x) >> 1) & 0x1)