v4.19.13 snapshot.
diff --git a/include/linux/apm_bios.h b/include/linux/apm_bios.h
new file mode 100644
index 0000000..9c3a871
--- /dev/null
+++ b/include/linux/apm_bios.h
@@ -0,0 +1,101 @@
+/*
+ * Include file for the interface to an APM BIOS
+ * Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+#ifndef _LINUX_APM_H
+#define _LINUX_APM_H
+
+#include <uapi/linux/apm_bios.h>
+
+
+#define APM_CS (GDT_ENTRY_APMBIOS_BASE * 8)
+#define APM_CS_16 (APM_CS + 8)
+#define APM_DS (APM_CS_16 + 8)
+
+/* Results of APM Installation Check */
+#define APM_16_BIT_SUPPORT 0x0001
+#define APM_32_BIT_SUPPORT 0x0002
+#define APM_IDLE_SLOWS_CLOCK 0x0004
+#define APM_BIOS_DISABLED 0x0008
+#define APM_BIOS_DISENGAGED 0x0010
+
+/*
+ * Data for APM that is persistent across module unload/load
+ */
+struct apm_info {
+ struct apm_bios_info bios;
+ unsigned short connection_version;
+ int get_power_status_broken;
+ int get_power_status_swabinminutes;
+ int allow_ints;
+ int forbid_idle;
+ int realmode_power_off;
+ int disabled;
+};
+
+/*
+ * The APM function codes
+ */
+#define APM_FUNC_INST_CHECK 0x5300
+#define APM_FUNC_REAL_CONN 0x5301
+#define APM_FUNC_16BIT_CONN 0x5302
+#define APM_FUNC_32BIT_CONN 0x5303
+#define APM_FUNC_DISCONN 0x5304
+#define APM_FUNC_IDLE 0x5305
+#define APM_FUNC_BUSY 0x5306
+#define APM_FUNC_SET_STATE 0x5307
+#define APM_FUNC_ENABLE_PM 0x5308
+#define APM_FUNC_RESTORE_BIOS 0x5309
+#define APM_FUNC_GET_STATUS 0x530a
+#define APM_FUNC_GET_EVENT 0x530b
+#define APM_FUNC_GET_STATE 0x530c
+#define APM_FUNC_ENABLE_DEV_PM 0x530d
+#define APM_FUNC_VERSION 0x530e
+#define APM_FUNC_ENGAGE_PM 0x530f
+#define APM_FUNC_GET_CAP 0x5310
+#define APM_FUNC_RESUME_TIMER 0x5311
+#define APM_FUNC_RESUME_ON_RING 0x5312
+#define APM_FUNC_TIMER 0x5313
+
+/*
+ * Function code for APM_FUNC_RESUME_TIMER
+ */
+#define APM_FUNC_DISABLE_TIMER 0
+#define APM_FUNC_GET_TIMER 1
+#define APM_FUNC_SET_TIMER 2
+
+/*
+ * Function code for APM_FUNC_RESUME_ON_RING
+ */
+#define APM_FUNC_DISABLE_RING 0
+#define APM_FUNC_ENABLE_RING 1
+#define APM_FUNC_GET_RING 2
+
+/*
+ * Function code for APM_FUNC_TIMER_STATUS
+ */
+#define APM_FUNC_TIMER_DISABLE 0
+#define APM_FUNC_TIMER_ENABLE 1
+#define APM_FUNC_TIMER_GET 2
+
+/*
+ * in arch/i386/kernel/setup.c
+ */
+extern struct apm_info apm_info;
+
+/*
+ * This is the "All Devices" ID communicated to the BIOS
+ */
+#define APM_DEVICE_BALL ((apm_info.connection_version > 0x0100) ? \
+ APM_DEVICE_ALL : APM_DEVICE_OLD_ALL)
+#endif /* LINUX_APM_H */