C_000004_MC_FB_START  167 drivers/gpu/drm/radeon/r520d.h #define   C_000004_MC_FB_START                         0xFFFF0000
C_000004_MC_FB_START  511 drivers/gpu/drm/radeon/rs600d.h #define   C_000004_MC_FB_START                         0xFFFF0000