ATOM_VRAM_MODULE_MEMORY_VENDOR_ID_MASK 7580 drivers/gpu/drm/amd/include/atombios.h #define ATOM_VRAM_MODULE_MEMORY_VENDOR_ID_MASK   0xF
ATOM_VRAM_MODULE_MEMORY_VENDOR_ID_MASK 6390 drivers/gpu/drm/radeon/atombios.h #define ATOM_VRAM_MODULE_MEMORY_VENDOR_ID_MASK	0xF