ulMemClockRange 7434 drivers/gpu/drm/amd/include/atombios.h ULONG ulMemClockRange:24; ulMemClockRange 7436 drivers/gpu/drm/amd/include/atombios.h ULONG ulMemClockRange:24; ulMemClockRange 6269 drivers/gpu/drm/radeon/atombios.h ULONG ulMemClockRange:24; ulMemClockRange 6271 drivers/gpu/drm/radeon/atombios.h ULONG ulMemClockRange:24;