ACPI: Recover type of wakeup in acpi_is_wakeup()
Update acpi_slp_type early in ramstage.
Change-Id: I30ec2680d28b880171217e896f48606f8691b099
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6142
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
diff --git a/src/arch/x86/boot/acpi.c b/src/arch/x86/boot/acpi.c
index 012c101..d76882a 100644
--- a/src/arch/x86/boot/acpi.c
+++ b/src/arch/x86/boot/acpi.c
@@ -645,14 +645,26 @@
/* This is to be filled by SB code - startup value what was found. */
u8 acpi_slp_type = 0;
+static void acpi_handoff_wakeup(void)
+{
+ static int once = 0;
+ if (once)
+ return;
+ if (acpi_get_sleep_type)
+ acpi_slp_type = acpi_get_sleep_type();
+ once = 1;
+}
+
int acpi_is_wakeup(void)
{
+ acpi_handoff_wakeup();
/* Both resume from S2 and resume from S3 restart at CPU reset */
return (acpi_slp_type == 3 || acpi_slp_type == 2);
}
int acpi_is_wakeup_s3(void)
{
+ acpi_handoff_wakeup();
return (acpi_slp_type == 3);
}
diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h
index 226957d..9039a90 100644
--- a/src/arch/x86/include/arch/acpi.h
+++ b/src/arch/x86/include/arch/acpi.h
@@ -569,7 +569,7 @@
void *acpi_get_wakeup_rsdp(void);
void acpi_jump_to_wakeup(void *wakeup_addr);
-int acpi_get_sleep_type(void);
+int __attribute__((weak)) acpi_get_sleep_type(void);
#endif /* IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) */
/* northbridge/amd/amdfam10/amdfam10_acpi.c */
diff --git a/src/lib/hardwaremain.c b/src/lib/hardwaremain.c
index d90e0f6..277d9b7 100644
--- a/src/lib/hardwaremain.c
+++ b/src/lib/hardwaremain.c
@@ -464,6 +464,11 @@
post_code(POST_CONSOLE_BOOT_MSG);
+ /* Handoff sleep type from romstage. */
+#if CONFIG_HAVE_ACPI_RESUME
+ acpi_is_wakeup();
+#endif
+
threads_initialize();
/* Schedule the static boot state entries. */