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authorBin Meng <bmeng.cn@gmail.com>2017-04-21 07:24:37 -0700
committerBin Meng <bmeng.cn@gmail.com>2017-05-17 17:11:46 +0800
commit3a34cae01160d207d50db267585b963cf0a0018d (patch)
treea6fcaae9a38548e2900bc8e98c0223ff16e20aa9 /arch/x86/include/asm/acpi_s3.h
parente76bf38f180b0c9325b17506f1518329d82cbed8 (diff)
x86: acpi: Resume OS if resume vector is found
In an S3 resume path, U-Boot does everything like a cold boot except in the last_stage_init() it jumps to the OS resume vector. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'arch/x86/include/asm/acpi_s3.h')
-rw-r--r--arch/x86/include/asm/acpi_s3.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/include/asm/acpi_s3.h b/arch/x86/include/asm/acpi_s3.h
index a06466c01e..b8d14f470d 100644
--- a/arch/x86/include/asm/acpi_s3.h
+++ b/arch/x86/include/asm/acpi_s3.h
@@ -99,6 +99,16 @@ enum acpi_sleep_state chipset_prev_sleep_state(void);
*/
void chipset_clear_sleep_state(void);
+/**
+ * acpi_resume() - Do ACPI S3 resume
+ *
+ * This calls U-Boot wake up assembly stub and jumps to OS's wake up vector.
+ *
+ * @wake_vec: OS wake up vector
+ * @return: Never returns
+ */
+void acpi_resume(void *wake_vec);
+
#endif /* __ASSEMBLY__ */
#endif /* __ASM_ACPI_S3_H__ */