S_028800_STENCILFUNC_BF 1925 drivers/gpu/drm/radeon/evergreend.h #define   S_028800_STENCILFUNC_BF(x)                   (((x) & 0x7) << 20)
S_028800_STENCILFUNC_BF 2357 drivers/gpu/drm/radeon/r600d.h #define   S_028800_STENCILFUNC_BF(x)                   (((x) & 0x7) << 20)