Commit 2318da47 authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915/bios: Define VBT blocks 6,7,8 (register tables) contents 



Define the contents for VBT blocks:
- Block 6 (Extended MMIO Register Table)
- Block 7 (IO Software Flag Table)
- Block 8 (MMIO SWF Register Table)

All of these use the same basic layout, with two known variants:
- data_access_size==0xce -> offset,value tuples are u8,u8
- data_access_size==0x02 -> offset,value tuples are u32,u32

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503122449.27266-13-ville.syrjala@linux.intel.com


Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
parent 2e8b8073

drivers/gpu/drm/i915/display/intel_vbt_defs.h

+16 −0
Original line number Diff line number Diff line
@@ -634,6 +634,22 @@ struct bdb_generic_mode_table_mgm { 
	struct generic_mode_timings timings[3];

} __packed;



/*

 * Block 6 - Extended MMIO Register Table, VBIOS only

 * Block 7 - IO Software Flag Table, VBIOS only

 * Block 8 - MMIO SWF Register Table, VBIOS only

 */

struct bdb_reg_table {

	u16 table_id;

	u8 data_access_size;

	/*

	 * offset,value tuples:

	 * data_access_size==0xce -> u8,u8

	 * data_access_size==0x02 -> u32,u32

	 */

	/* u16 table_end_marker; */

} __packed;



/*

 * Block 9 - SRD Feature Block

 */