S_00015C_MC_FB_START   33 drivers/gpu/drm/radeon/rs100d.h #define   S_00015C_MC_FB_START(x)                      (((x) & 0xFFFF) << 0)
S_00015C_MC_FB_START   40 drivers/gpu/drm/radeon/rs400d.h #define   S_00015C_MC_FB_START(x)                      (((x) & 0xFFFF) << 0)