On Fri, 03 May 2024, Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> 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: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_vbt_defs.h | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> index f3478a20ff16..4f0b8be3034c 100644
> --- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> +++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> @@ -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
> */
--
Jani Nikula, Intel
