VGA_HDP_CONTROL    76 drivers/gpu/drm/amd/amdgpu/sid.h #define VGA_HDP_CONTROL  				0xCA
VGA_HDP_CONTROL    53 drivers/gpu/drm/radeon/avivod.h #define	VGA_HDP_CONTROL					0x328
VGA_HDP_CONTROL   435 drivers/gpu/drm/radeon/cikd.h #define VGA_HDP_CONTROL  				0x328
VGA_HDP_CONTROL    74 drivers/gpu/drm/radeon/sid.h #define VGA_HDP_CONTROL  				0x328