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| author | Stefan Reinauer <reinauer@chromium.org> | 2011-09-23 10:33:58 -0700 |
|---|---|---|
| committer | Patrick Georgi <patrick@georgi-clan.de> | 2012-03-08 18:18:39 +0100 |
| commit | 0a50084e4d7535c5eb86dc3bf18c357eec4aa69a (patch) | |
| tree | e30c7cad67e6253816d0cebd9ea8a69309fe0843 | |
| parent | c8feeddf343e8fd0ddd6be7e42101ab4f1866ed0 (diff) | |
Don't run VGA option ROMs on S3 resume.
This will save us a few 100 ms on resume.
Change-Id: Iabf4c8ab88662ba41236162f0a6f5bd80d8c1255
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/715
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
| -rw-r--r-- | src/devices/Kconfig | 7 | ||||
| -rw-r--r-- | src/devices/pci_device.c | 11 |
2 files changed, 18 insertions, 0 deletions
diff --git a/src/devices/Kconfig b/src/devices/Kconfig index 9e5ea6e094..572addcf53 100644 --- a/src/devices/Kconfig +++ b/src/devices/Kconfig @@ -33,6 +33,13 @@ config VGA_ROM_RUN Execute VGA option ROMs, if found. This is required to enable PCI/AGP/PCI-E video cards. +config S3_VGA_ROM_RUN + bool "Re-run VGA option ROMs on S3 resume" + default y + depends on VGA_ROM_RUN && HAVE_ACPI_RESUME + help + Execute VGA option ROMs when coming out of an S3 resume. + config PCI_ROM_RUN bool "Run non-VGA option ROMs" default y diff --git a/src/devices/pci_device.c b/src/devices/pci_device.c index 2ccb38a75e..0a870b84cf 100644 --- a/src/devices/pci_device.c +++ b/src/devices/pci_device.c @@ -51,6 +51,9 @@ #if CONFIG_PC80_SYSTEM == 1 #include <pc80/i8259.h> #endif +#if CONFIG_HAVE_ACPI_RESUME && !CONFIG_S3_VGA_ROM_RUN +#include <arch/acpi.h> +#endif u8 pci_moving_config8(struct device *dev, unsigned int reg) { @@ -672,6 +675,14 @@ void pci_dev_init(struct device *dev) if (ram == NULL) return; +#if CONFIG_HAVE_ACPI_RESUME && !CONFIG_S3_VGA_ROM_RUN + /* If S3_VGA_ROM_RUN is disabled, skip running VGA option + * ROMs when coming out of an S3 resume. + */ + if ((acpi_slp_type == 3) && + ((dev->class >> 8) == PCI_CLASS_DISPLAY_VGA)) + return; +#endif run_bios(dev, (unsigned long)ram); #endif /* CONFIG_PCI_ROM_RUN || CONFIG_VGA_ROM_RUN */ } |