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Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 9ead3eb..0cd981e 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -589,6 +589,38 @@ config GENERATE_ACPI_TABLE endmenu +config HAVE_ACPI_RESUME + bool "Enable ACPI S3 resume" + help + Select this to enable ACPI S3 resume. S3 is an ACPI-defined sleeping + state where all system context is lost except system memory. U-Boot + is responsible for restoring the machine state as it was before sleep. + It needs restore the memory controller, without overwriting memory + which is not marked as reserved. For the peripherals which lose their + registers, U-Boot needs to write the original value. When everything + is done, U-Boot needs to find out the wakeup vector provided by OSes + and jump there. + +config S3_VGA_ROM_RUN + bool "Re-run VGA option ROMs on S3 resume" + depends on HAVE_ACPI_RESUME + default y if HAVE_ACPI_RESUME + help + Execute VGA option ROMs in U-Boot when resuming from S3. Normally + this is needed when graphics console is being used in the kernel. + + Turning it off can reduce some resume time, but be aware that your + graphics console won't work without VGA options ROMs. Set it to N + if your kernel is only on a serial console. + +config STACK_SIZE + hex + depends on HAVE_ACPI_RESUME + default 0x1000 + help + Estimated U-Boot's runtime stack size that needs to be reserved + during an ACPI S3 resume. + config MAX_PIRQ_LINKS int default 8 |