Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * IBM ASM Service Processor Device Driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) IBM Corporation, 2004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Author: Max Asböck <amax@us.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #pragma pack(1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) struct i2o_header {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	u8	version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	u8	message_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	u16	message_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	u8	target;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	u8	initiator_and_target;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	u8	initiator;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	u8	function;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	u32	initiator_context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #pragma pack()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define I2O_HEADER_TEMPLATE \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)       { .version              = 0x01, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	.message_flags        = 0x00, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	.function             = 0xFF, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	.initiator            = 0x00, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	.initiator_and_target = 0x40, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	.target               = 0x00, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	.initiator_context    = 0x0 }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define I2O_MESSAGE_SIZE	0x1000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define I2O_COMMAND_SIZE	(I2O_MESSAGE_SIZE - sizeof(struct i2o_header))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #pragma pack(1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct i2o_message {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	struct i2o_header	header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	void			*data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #pragma pack()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static inline unsigned short outgoing_message_size(unsigned int data_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	unsigned int size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	unsigned short i2o_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	if (data_size > I2O_COMMAND_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 		data_size = I2O_COMMAND_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	size = sizeof(struct i2o_header) + data_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	i2o_size = size / sizeof(u32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	if (size % sizeof(u32))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	       i2o_size++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	return i2o_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static inline u32 incoming_data_size(struct i2o_message *i2o_message)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	return (sizeof(u32) * i2o_message->header.message_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }