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drm/i915/bios: Define VBT blocks 19,30,32 (Display Configuration Removal Table) contents

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Define the contenst is VBT blocks 19,30,32 (Display Configuration
Removal Table) contents. There are three variants of this block:
pre-IVB, IVB, HSW+, with each having slightly different entries.

Curiously many HSW/BDW machines seem to have both the IVB and HSW+
variants in their VBTs simultanously. No idea why.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503122449.27266-21-ville.syrjala@linux.intel.com
Acked-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2024-05-03 15:24:34 +03:00
parent e547b97e9d
commit e225161e2a
1 changed files with 46 additions and 1 deletions
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47
drivers/gpu/drm/i915/display/intel_vbt_defs.h
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@ -158,7 +158,7 @@ enum bdb_block_id {
BDB_DISPLAY_SELECT_OLD = 16,
BDB_SV_TEST_FUNCTIONS = 17,
BDB_DRIVER_ROTATION = 18,
BDB_DISPLAY_REMOVE = 19,
BDB_DISPLAY_REMOVE_OLD = 19,
BDB_OEM_CUSTOM = 20,
BDB_EFP_LIST = 21, /* workarounds for VGA hsync/vsync */
BDB_SDVO_LVDS_OPTIONS = 22,
@ -168,7 +168,9 @@ enum bdb_block_id {
BDB_TV_OPTIONS = 26,
BDB_EDP = 27,
BDB_DISPLAY_SELECT_IVB = 29, /* 164+ */
BDB_DISPLAY_REMOVE_IVB = 30, /* 164+ */
BDB_DISPLAY_SELECT_HSW = 31, /* 166+ */
BDB_DISPLAY_REMOVE_HSW = 32, /* 166+ */
BDB_LFP_OPTIONS = 40,
BDB_LFP_DATA_PTRS = 41,
BDB_LFP_DATA = 42,
@ -880,6 +882,21 @@ struct bdb_driver_rotation {
u32 rotation_flags_4;
} __packed;
/*
* Block 19 - Display Configuration Removal Table (pre-IVB)
*/
struct display_remove_entry_old {
u8 display_select_pipe_a;
u8 display_select_pipe_b;
} __packed;
struct bdb_display_remove_old {
u8 num_entries;
u8 entry_size;
struct display_remove_entry_old table[];
} __packed;
/*
* Block 22 - SDVO LVDS General Options
*/
@ -999,6 +1016,20 @@ struct bdb_display_select_ivb {
struct toggle_list_table_ivb tables[4];
} __packed;
/*
* Block 30 - Display Configuration Removal Table (IVB)
*/
struct display_remove_entry_ivb {
u8 display_select;
} __packed;
struct bdb_display_remove_ivb {
u8 num_entries;
u8 entry_size;
struct display_remove_entry_ivb table[];
} __packed;
/*
* Block 31 - Toggle List Block (HSW+)
*/
@ -1018,6 +1049,20 @@ struct bdb_display_select_hsw {
struct toggle_list_table_hsw tables[4];
} __packed;
/*
* Block 32 - Display Configuration Removal Table (HSW+)
*/
struct display_remove_entry_hsw {
u16 display_select;
} __packed;
struct bdb_display_remove_hsw {
u8 num_entries;
u8 entry_size;
struct display_remove_entry_hsw table[];
} __packed;
/*
* Block 40 - LFP Data Block
*/