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ACPI: Get S3 resume state from romstage_handoff

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There is nothing platform specific in retrieving S3 resume state from
romstage_handoff structure. Boards without EARLY_CBMEM_INIT update
acpi_slp_type from ACPI power-management block or scratchpad registers.

Change-Id: Ifc3755f891a0810473b3216c1fec8e45908fc1ab
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8188
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
This commit is contained in:
Kyösti Mälkki
2015-01-08 20:03:18 +02:00
parent a63719407f
commit 9e94dbfcd0
12 changed files with 45 additions and 128 deletions
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20
src/arch/x86/boot/acpi.c
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@@ -36,6 +36,7 @@
#if CONFIG_COLLECT_TIMESTAMPS
#include <timestamp.h>
#endif
#include <romstage_handoff.h>
/* FIXME: Kconfig doesn't support overridable defaults :-( */
#ifndef CONFIG_HPET_MIN_TICKS
@@ -857,10 +858,25 @@ void acpi_resume(void *wake_vec)
/* This is filled with acpi_is_wakeup() call early in ramstage. */
int acpi_slp_type = -1;
int __attribute__((weak)) acpi_get_sleep_type(void)
#if IS_ENABLED(CONFIG_EARLY_CBMEM_INIT)
int acpi_get_sleep_type(void)
{
return 0;
struct romstage_handoff *handoff;
handoff = cbmem_find(CBMEM_ID_ROMSTAGE_INFO);
if (handoff == NULL) {
printk(BIOS_DEBUG, "Unknown boot method, assuming normal.\n");
return 0;
} else if (handoff->s3_resume) {
printk(BIOS_DEBUG, "S3 Resume.\n");
return 3;
} else {
printk(BIOS_DEBUG, "Normal boot.\n");
return 0;
}
}
#endif
static void acpi_handoff_wakeup(void)
{