Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) 2012 IBM Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Author: Ashley Lai <ashleydlai@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Maintained by: <tpmdd-devel@lists.sourceforge.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * Device driver for TCG/TCPA TPM (trusted platform module).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * Specifications at www.trustedcomputinggroup.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #ifndef __TPM_IBMVTPM_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #define __TPM_IBMVTPM_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) /* vTPM Message Format 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) struct ibmvtpm_crq {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	u8 valid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	u8 msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	__be16 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	__be32 data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	__be64 reserved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) } __attribute__((packed, aligned(8)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) struct ibmvtpm_crq_queue {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	struct ibmvtpm_crq *crq_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	u32 index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	u32 num_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	wait_queue_head_t wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct ibmvtpm_dev {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	struct vio_dev *vdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	struct ibmvtpm_crq_queue crq_queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	dma_addr_t crq_dma_handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	u32 rtce_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	void __iomem *rtce_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	dma_addr_t rtce_dma_handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	spinlock_t rtce_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	wait_queue_head_t wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	u16 res_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	u32 vtpm_version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	u8 tpm_processing_cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define CRQ_RES_BUF_SIZE	PAGE_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) /* Initialize CRQ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define INIT_CRQ_CMD		0xC001000000000000LL /* Init cmd */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define INIT_CRQ_COMP_CMD	0xC002000000000000LL /* Init complete cmd */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define INIT_CRQ_RES		0x01	/* Init respond */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define INIT_CRQ_COMP_RES	0x02	/* Init complete respond */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define VALID_INIT_CRQ		0xC0	/* Valid command for init crq */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) /* vTPM CRQ response is the message type | 0x80 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define VTPM_MSG_RES		0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #define IBMVTPM_VALID_CMD	0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) /* vTPM CRQ message types */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define VTPM_GET_VERSION			0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #define VTPM_GET_VERSION_RES			(0x01 | VTPM_MSG_RES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #define VTPM_TPM_COMMAND			0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define VTPM_TPM_COMMAND_RES			(0x02 | VTPM_MSG_RES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #define VTPM_GET_RTCE_BUFFER_SIZE		0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #define VTPM_GET_RTCE_BUFFER_SIZE_RES		(0x03 | VTPM_MSG_RES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define VTPM_PREPARE_TO_SUSPEND			0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #define VTPM_PREPARE_TO_SUSPEND_RES		(0x04 | VTPM_MSG_RES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #endif