diff options
| author | Jeremy Compostella <jeremy.compostella@intel.com> | 2022-12-01 15:45:51 -0700 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2023-01-11 13:59:54 +0000 |
| commit | 765e5df0dddbb12927dbcc8a8315ed4c99357984 (patch) | |
| tree | 571327fd8ebbcb5aec26981ef01848cb97a29883 /src/arch | |
| parent | ea2dbdba2e5a27d47fb3b7834951cff2e0f40628 (diff) | |
drivers/intel/gma: Hook up libgfxinit in romstage
A mainboard port needs to:
- select `CONFIG_MAINBOARD_HAS_EARLY_LIBGFXINIT'
- implement the Ada package `GMA.Mainboard' with a single function
`ports' that returns a list of ports to be probed for displays.
- set the desired `GFX_GMA_DEFAULT_MMIO' IO memory address to use
in romstage (and ramstage) for the graphic device.
BUG=b:252792591
BRANCH=firmware-brya-14505.B
TEST=libgfxinit compiles in romstage.
libgfxinit successfully executes in romstage and ramstage using
the requested MMIO setting on skolas.
Change-Id: I3c2101de10dc5df54fe873e43bbe0f1c4dccff44
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70276
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/car.ld | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/arch/x86/car.ld b/src/arch/x86/car.ld index dc075c6801..87e3dbc849 100644 --- a/src/arch/x86/car.ld +++ b/src/arch/x86/car.ld @@ -73,6 +73,13 @@ #if CONFIG(ROMSTAGE_LIBHWBASE) *(.data.hw__*_E) #endif +#if CONFIG(EARLY_GFX_GMA) + *(.data.gma*_E) + /* libgfxinit uses a boolean variable to track its initialization + * state. Since the initial value is False it can safely be placed in + * the _bss region. */ + *(.data.hw__gfx__gma__initialized) +#endif . = ALIGN(ARCH_POINTER_ALIGN_SIZE); _ebss = .; RECORD_SIZE(bss) |