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drivers: Replace multiple fill_lb_framebuffer with single instance

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Currently it's not possible to add multiple graphics drivers into
one coreboot image. This patch series will fix this issue by providing
a single API that multiple graphics drivers can use.

This is required for platforms that have two graphic cards, but
different graphic drivers, like Intel+Aspeed on server platforms or
Intel+Nvidia on consumer notebooks.

The goal is to remove duplicated fill_fb_framebuffer(), the advertisment
of multiple independent framebuffers in coreboot tables, and better
runtime/build time graphic configuration options.

Replace all duplications of fill_fb_framebuffer and provide a single one
in edid_fill_fb.c. Should not change the current behaviour as still only
one graphic driver can be active at time.

Change-Id: Ife507f7e7beaf59854e533551b4b87ea6980c1f4
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39003
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Patrick Rudolph
2020-02-19 12:54:06 +01:00
committed by Patrick Rudolph
parent a3495c0d7b
commit 92106b1666
14 changed files with 142 additions and 252 deletions
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8
src/lib/Kconfig
View File

@@ -5,14 +5,6 @@ config MISSING_BOARD_RESET
implementation. This activates a stub that logs the missing
board reset and halts execution.
config NO_EDID_FILL_FB
bool
default y if !MAINBOARD_DO_NATIVE_VGA_INIT
help
Don't include default fill_lb_framebuffer() implementation. Select
this if your drivers uses MAINBOARD_DO_NATIVE_VGA_INIT but provides
its own fill_lb_framebuffer() implementation.
config RAMSTAGE_ADA
bool
help

2
src/lib/Makefile.inc
View File

@@ -144,9 +144,7 @@ ramstage-$(CONFIG_BOOTSPLASH) += jpeg.c
ramstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
ramstage-$(CONFIG_COVERAGE) += libgcov.c
ramstage-y += edid.c
ifneq ($(CONFIG_NO_EDID_FILL_FB),y)
ramstage-y += edid_fill_fb.c
endif
ramstage-y += memrange.c
ramstage-$(CONFIG_COOP_MULTITASKING) += thread.c
ramstage-$(CONFIG_TIMER_QUEUE) += timer_queue.c