diff options
| author | Simon Glass <sjg@chromium.org> | 2023-09-19 21:00:11 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng@tinylab.org> | 2023-09-22 06:05:40 +0800 |
| commit | 3fef0def84e65d399658b1d028ad558329a0669a (patch) | |
| tree | 61b355812a48a710ca782ca9ffa04c1e6ed665f2 | |
| parent | 85c35c794e637d88042656157cd00541640815c1 (diff) | |
| download | u-boot-3fef0def84e65d399658b1d028ad558329a0669a.zip u-boot-3fef0def84e65d399658b1d028ad558329a0669a.tar.gz u-boot-3fef0def84e65d399658b1d028ad558329a0669a.tar.bz2 | |
x86: coreboot: Enable VIDEO_COPY
At least on modern machines the write-back mechanism for the frame buffer
is quite slow when scrolling, since it must read the entire frame buffer
and write it back.
Enable the VIDEO_COPY feature to resolve this problem.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
| -rw-r--r-- | arch/x86/dts/coreboot.dts | 1 | ||||
| -rw-r--r-- | configs/coreboot64_defconfig | 1 | ||||
| -rw-r--r-- | configs/coreboot_defconfig | 1 | ||||
| -rw-r--r-- | drivers/video/coreboot.c | 12 |
4 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/dts/coreboot.dts b/arch/x86/dts/coreboot.dts index f9ff534..0eb31ca 100644 --- a/arch/x86/dts/coreboot.dts +++ b/arch/x86/dts/coreboot.dts @@ -42,6 +42,7 @@ }; coreboot-fb { + bootph-some-ram; compatible = "coreboot-fb"; }; }; diff --git a/configs/coreboot64_defconfig b/configs/coreboot64_defconfig index dc3548a..555d281 100644 --- a/configs/coreboot64_defconfig +++ b/configs/coreboot64_defconfig @@ -59,6 +59,7 @@ CONFIG_NVME_PCI=y CONFIG_SYS_NS16550_MEM32=y CONFIG_SOUND=y CONFIG_SOUND_I8254=y +CONFIG_VIDEO_COPY=y CONFIG_CONSOLE_SCROLL_LINES=5 CONFIG_SPL_ACPI=y CONFIG_CMD_DHRYSTONE=y diff --git a/configs/coreboot_defconfig b/configs/coreboot_defconfig index 630eb9a..edc38f1 100644 --- a/configs/coreboot_defconfig +++ b/configs/coreboot_defconfig @@ -53,6 +53,7 @@ CONFIG_NVME_PCI=y CONFIG_SYS_NS16550_MEM32=y CONFIG_SOUND=y CONFIG_SOUND_I8254=y +CONFIG_VIDEO_COPY=y CONFIG_CONSOLE_SCROLL_LINES=5 CONFIG_CMD_DHRYSTONE=y # CONFIG_GZIP is not set diff --git a/drivers/video/coreboot.c b/drivers/video/coreboot.c index c586475..5b718ae 100644 --- a/drivers/video/coreboot.c +++ b/drivers/video/coreboot.c @@ -73,6 +73,17 @@ err: return ret; } +static int coreboot_video_bind(struct udevice *dev) +{ + struct video_uc_plat *uc_plat = dev_get_uclass_plat(dev); + + /* Set the maximum supported resolution */ + uc_plat->size = 4096 * 2160 * 4; + log_debug("%s: Frame buffer size %x\n", __func__, uc_plat->size); + + return 0; +} + static const struct udevice_id coreboot_video_ids[] = { { .compatible = "coreboot-fb" }, { } @@ -82,5 +93,6 @@ U_BOOT_DRIVER(coreboot_video) = { .name = "coreboot_video", .id = UCLASS_VIDEO, .of_match = coreboot_video_ids, + .bind = coreboot_video_bind, .probe = coreboot_video_probe, }; |