G_000004_MC_FB_TOP  169 drivers/gpu/drm/radeon/r520d.h #define   G_000004_MC_FB_TOP(x)                        (((x) >> 16) & 0xFFFF)
G_000004_MC_FB_TOP  513 drivers/gpu/drm/radeon/rs600d.h #define   G_000004_MC_FB_TOP(x)                        (((x) >> 16) & 0xFFFF)