projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 132f7629 AL |
1 | /* |
| 2 | * Copyright (C) 2012 IBM Corporation | |
| 3 | * | |
| 4 | * Author: Ashley Lai <adlai@us.ibm.com> | |
| 5 | * | |
| 6 | * Maintained by: <tpmdd-devel@lists.sourceforge.net> | |
| 7 | * | |
| 8 | * Device driver for TCG/TCPA TPM (trusted platform module). | |
| 9 | * Specifications at www.trustedcomputinggroup.org | |
| 10 | * | |
| 11 | * This program is free software; you can redistribute it and/or | |
| 12 | * modify it under the terms of the GNU General Public License as | |
| 13 | * published by the Free Software Foundation, version 2 of the | |
| 14 | * License. | |
| 15 | * | |
| 16 | */ | |
| 17 | ||
| 18 | #ifndef __TPM_IBMVTPM_H__ | |
| 19 | #define __TPM_IBMVTPM_H__ | |
| 20 | ||
| 21 | /* vTPM Message Format 1 */ | |
| 22 | struct ibmvtpm_crq { | |
| 23 | u8 valid; | |
| 24 | u8 msg; | |
| 25 | u16 len; | |
| 26 | u32 data; | |
| 27 | u64 reserved; | |
| 28 | } __attribute__((packed, aligned(8))); | |
| 29 | ||
| 30 | struct ibmvtpm_crq_queue { | |
| 31 | struct ibmvtpm_crq *crq_addr; | |
| 32 | u32 index; | |
| 33 | u32 num_entry; | |
| 34 | }; | |
| 35 | ||
| 36 | struct ibmvtpm_dev { | |
| 37 | struct device *dev; | |
| 38 | struct vio_dev *vdev; | |
| 39 | struct ibmvtpm_crq_queue crq_queue; | |
| 40 | dma_addr_t crq_dma_handle; | |
| 132f7629 AL |
41 | u32 rtce_size; |
| 42 | void __iomem *rtce_buf; | |
| 43 | dma_addr_t rtce_dma_handle; | |
| 44 | spinlock_t rtce_lock; | |
| b5666502 AL |
45 | wait_queue_head_t wq; |
| 46 | u16 res_len; | |
| 132f7629 AL |
47 | u32 vtpm_version; |
| 48 | }; | |
| 49 | ||
| 50 | #define CRQ_RES_BUF_SIZE PAGE_SIZE | |
| 51 | ||
| 52 | /* Initialize CRQ */ | |
| 53 | #define INIT_CRQ_CMD 0xC001000000000000LL /* Init cmd */ | |
| 54 | #define INIT_CRQ_COMP_CMD 0xC002000000000000LL /* Init complete cmd */ | |
| 55 | #define INIT_CRQ_RES 0x01 /* Init respond */ | |
| 56 | #define INIT_CRQ_COMP_RES 0x02 /* Init complete respond */ | |
| 57 | #define VALID_INIT_CRQ 0xC0 /* Valid command for init crq */ | |
| 58 | ||
| 59 | /* vTPM CRQ response is the message type | 0x80 */ | |
| 60 | #define VTPM_MSG_RES 0x80 | |
| 61 | #define IBMVTPM_VALID_CMD 0x80 | |
| 62 | ||
| 63 | /* vTPM CRQ message types */ | |
| 64 | #define VTPM_GET_VERSION 0x01 | |
| 65 | #define VTPM_GET_VERSION_RES (0x01 | VTPM_MSG_RES) | |
| 66 | ||
| 67 | #define VTPM_TPM_COMMAND 0x02 | |
| 68 | #define VTPM_TPM_COMMAND_RES (0x02 | VTPM_MSG_RES) | |
| 69 | ||
| 70 | #define VTPM_GET_RTCE_BUFFER_SIZE 0x03 | |
| 71 | #define VTPM_GET_RTCE_BUFFER_SIZE_RES (0x03 | VTPM_MSG_RES) | |
| 72 | ||
| 73 | #define VTPM_PREPARE_TO_SUSPEND 0x04 | |
| 74 | #define VTPM_PREPARE_TO_SUSPEND_RES (0x04 | VTPM_MSG_RES) | |
| 75 | ||
| 76 | #endif |