Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1 | /*Qualcomm Secure Execution Environment Communicator (QSEECOM) driver |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2 | * |
Hariprasad Dhalinarasimha | a3b9644 | 2013-01-02 10:40:40 -0800 | [diff] [blame] | 3 | * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 and |
| 7 | * only version 2 as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | */ |
| 14 | |
| 15 | #define pr_fmt(fmt) "QSEECOM: %s: " fmt, __func__ |
| 16 | |
| 17 | #include <linux/kernel.h> |
| 18 | #include <linux/slab.h> |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/fs.h> |
| 21 | #include <linux/platform_device.h> |
| 22 | #include <linux/debugfs.h> |
| 23 | #include <linux/cdev.h> |
| 24 | #include <linux/uaccess.h> |
| 25 | #include <linux/sched.h> |
| 26 | #include <linux/list.h> |
| 27 | #include <linux/mutex.h> |
| 28 | #include <linux/io.h> |
Mitchel Humpherys | 4f8be2e | 2012-09-06 10:41:41 -0700 | [diff] [blame] | 29 | #include <linux/msm_ion.h> |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 30 | #include <linux/types.h> |
| 31 | #include <linux/clk.h> |
| 32 | #include <linux/qseecom.h> |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 33 | #include <linux/elf.h> |
| 34 | #include <linux/firmware.h> |
Mona Hossain | acea102 | 2012-04-09 13:37:27 -0700 | [diff] [blame] | 35 | #include <linux/freezer.h> |
Mona Hossain | f1f2ed6 | 2012-11-15 19:51:33 -0800 | [diff] [blame] | 36 | #include <linux/scatterlist.h> |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 37 | #include <mach/board.h> |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 38 | #include <mach/msm_bus.h> |
| 39 | #include <mach/msm_bus_board.h> |
| 40 | #include <mach/scm.h> |
Stephen Boyd | 77db8bb | 2012-06-27 15:15:16 -0700 | [diff] [blame] | 41 | #include <mach/subsystem_restart.h> |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 42 | #include <mach/socinfo.h> |
Mona Hossain | 803c3d9 | 2012-11-21 13:33:42 -0800 | [diff] [blame] | 43 | #include <mach/qseecomi.h> |
Hariprasad Dhalinarasimha | 682d1c3 | 2013-05-19 21:22:10 -0700 | [diff] [blame] | 44 | #include <asm/cacheflush.h> |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 45 | #include "qseecom_legacy.h" |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 46 | #include "qseecom_kernel.h" |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 47 | |
| 48 | #define QSEECOM_DEV "qseecom" |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 49 | #define QSEOS_VERSION_14 0x14 |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 50 | #define QSEEE_VERSION_00 0x400000 |
Mona Hossain | 5b76a62 | 2012-11-15 20:09:08 -0800 | [diff] [blame] | 51 | #define QSEE_VERSION_01 0x401000 |
| 52 | #define QSEE_VERSION_02 0x402000 |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 53 | #define QSEE_VERSION_03 0x403000 |
Amir Samuelov | d1fc741 | 2013-03-10 16:56:13 +0200 | [diff] [blame] | 54 | #define QSEE_VERSION_04 0x404000 |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 55 | #define QSEE_VERSION_05 0x405000 |
| 56 | |
Mona Hossain | 5b76a62 | 2012-11-15 20:09:08 -0800 | [diff] [blame] | 57 | |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 58 | |
| 59 | #define QSEOS_CHECK_VERSION_CMD 0x00001803 |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 60 | |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 61 | #define QSEE_CE_CLK_100MHZ 100000000 |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 62 | |
Mona Hossain | 13dd892 | 2013-01-03 06:11:09 -0800 | [diff] [blame] | 63 | #define QSEECOM_MAX_SG_ENTRY 512 |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 64 | #define QSEECOM_DISK_ENCRYTPION_KEY_ID 0 |
Mona Hossain | f1f2ed6 | 2012-11-15 19:51:33 -0800 | [diff] [blame] | 65 | |
Amir Samuelov | d1fc741 | 2013-03-10 16:56:13 +0200 | [diff] [blame] | 66 | /* Save partition image hash for authentication check */ |
| 67 | #define SCM_SAVE_PARTITION_HASH_ID 0x01 |
| 68 | |
| 69 | /* Check if enterprise security is activate */ |
| 70 | #define SCM_IS_ACTIVATED_ID 0x02 |
| 71 | |
Zhen Kong | 7812dc1 | 2013-07-09 17:12:55 -0700 | [diff] [blame] | 72 | #define RPMB_SERVICE 0x2000 |
| 73 | |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 74 | enum qseecom_clk_definitions { |
| 75 | CLK_DFAB = 0, |
| 76 | CLK_SFPB, |
| 77 | }; |
| 78 | |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 79 | enum qseecom_client_handle_type { |
AnilKumar Chimata | f732bbe | 2013-07-24 00:44:09 +0530 | [diff] [blame] | 80 | QSEECOM_CLIENT_APP = 1, |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 81 | QSEECOM_LISTENER_SERVICE, |
| 82 | QSEECOM_SECURE_SERVICE, |
| 83 | QSEECOM_GENERIC, |
AnilKumar Chimata | f732bbe | 2013-07-24 00:44:09 +0530 | [diff] [blame] | 84 | QSEECOM_UNAVAILABLE_CLIENT_APP, |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 85 | }; |
| 86 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 87 | enum qseecom_ce_hw_instance { |
| 88 | CLK_QSEE = 0, |
| 89 | CLK_CE_DRV, |
| 90 | }; |
| 91 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 92 | static struct class *driver_class; |
| 93 | static dev_t qseecom_device_no; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 94 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 95 | static DEFINE_MUTEX(qsee_bw_mutex); |
| 96 | static DEFINE_MUTEX(app_access_lock); |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 97 | static DEFINE_MUTEX(clk_access_lock); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 98 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 99 | struct qseecom_registered_listener_list { |
| 100 | struct list_head list; |
| 101 | struct qseecom_register_listener_req svc; |
| 102 | u8 *sb_reg_req; |
| 103 | u8 *sb_virt; |
| 104 | s32 sb_phys; |
| 105 | size_t sb_length; |
| 106 | struct ion_handle *ihandle; /* Retrieve phy addr */ |
| 107 | |
| 108 | wait_queue_head_t rcv_req_wq; |
| 109 | int rcv_req_flag; |
| 110 | }; |
| 111 | |
| 112 | struct qseecom_registered_app_list { |
| 113 | struct list_head list; |
| 114 | u32 app_id; |
| 115 | u32 ref_cnt; |
| 116 | }; |
| 117 | |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 118 | struct qseecom_registered_kclient_list { |
| 119 | struct list_head list; |
| 120 | struct qseecom_handle *handle; |
| 121 | }; |
| 122 | |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 123 | struct ce_hw_usage_info { |
| 124 | uint32_t qsee_ce_hw_instance; |
| 125 | uint32_t hlos_ce_hw_instance; |
| 126 | uint32_t disk_encrypt_pipe; |
| 127 | }; |
| 128 | |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 129 | struct qseecom_clk { |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 130 | enum qseecom_ce_hw_instance instance; |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 131 | struct clk *ce_core_clk; |
| 132 | struct clk *ce_clk; |
| 133 | struct clk *ce_core_src_clk; |
| 134 | struct clk *ce_bus_clk; |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 135 | uint32_t clk_access_cnt; |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 136 | }; |
| 137 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 138 | struct qseecom_control { |
| 139 | struct ion_client *ion_clnt; /* Ion client */ |
| 140 | struct list_head registered_listener_list_head; |
| 141 | spinlock_t registered_listener_list_lock; |
| 142 | |
| 143 | struct list_head registered_app_list_head; |
| 144 | spinlock_t registered_app_list_lock; |
| 145 | |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 146 | struct list_head registered_kclient_list_head; |
| 147 | spinlock_t registered_kclient_list_lock; |
| 148 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 149 | wait_queue_head_t send_resp_wq; |
| 150 | int send_resp_flag; |
| 151 | |
| 152 | uint32_t qseos_version; |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 153 | uint32_t qsee_version; |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 154 | struct device *pdev; |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 155 | bool commonlib_loaded; |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 156 | struct ce_hw_usage_info ce_info; |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 157 | |
| 158 | int qsee_bw_count; |
| 159 | int qsee_sfpb_bw_count; |
| 160 | |
| 161 | uint32_t qsee_perf_client; |
| 162 | struct qseecom_clk qsee; |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 163 | struct qseecom_clk ce_drv; |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 164 | struct cdev cdev; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 165 | }; |
| 166 | |
| 167 | struct qseecom_client_handle { |
| 168 | u32 app_id; |
| 169 | u8 *sb_virt; |
| 170 | s32 sb_phys; |
| 171 | uint32_t user_virt_sb_base; |
| 172 | size_t sb_length; |
| 173 | struct ion_handle *ihandle; /* Retrieve phy addr */ |
| 174 | }; |
| 175 | |
| 176 | struct qseecom_listener_handle { |
| 177 | u32 id; |
| 178 | }; |
| 179 | |
| 180 | static struct qseecom_control qseecom; |
| 181 | |
| 182 | struct qseecom_dev_handle { |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 183 | enum qseecom_client_handle_type type; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 184 | union { |
| 185 | struct qseecom_client_handle client; |
| 186 | struct qseecom_listener_handle listener; |
| 187 | }; |
| 188 | bool released; |
| 189 | int abort; |
| 190 | wait_queue_head_t abort_wq; |
| 191 | atomic_t ioctl_count; |
Mona Hossain | c9c83c7 | 2013-04-11 12:43:48 -0700 | [diff] [blame] | 192 | bool perf_enabled; |
| 193 | bool fast_load_enabled; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 194 | }; |
| 195 | |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 196 | enum qseecom_set_clear_key_flag { |
| 197 | QSEECOM_CLEAR_CE_KEY_CMD = 0, |
| 198 | QSEECOM_SET_CE_KEY_CMD, |
| 199 | }; |
| 200 | |
| 201 | struct qseecom_set_key_parameter { |
| 202 | uint32_t ce_hw; |
| 203 | uint32_t pipe; |
| 204 | uint32_t flags; |
| 205 | uint8_t key_id[QSEECOM_KEY_ID_SIZE]; |
| 206 | unsigned char hash32[QSEECOM_HASH_SIZE]; |
| 207 | enum qseecom_set_clear_key_flag set_clear_key_flag; |
| 208 | }; |
| 209 | |
Mona Hossain | f1f2ed6 | 2012-11-15 19:51:33 -0800 | [diff] [blame] | 210 | struct qseecom_sg_entry { |
| 211 | uint32_t phys_addr; |
| 212 | uint32_t len; |
| 213 | }; |
| 214 | |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 215 | /* Function proto types */ |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 216 | static int qsee_vote_for_clock(struct qseecom_dev_handle *, int32_t); |
| 217 | static void qsee_disable_clock_vote(struct qseecom_dev_handle *, int32_t); |
Zhen Kong | 7812dc1 | 2013-07-09 17:12:55 -0700 | [diff] [blame] | 218 | static int __qseecom_enable_clk(enum qseecom_ce_hw_instance ce); |
| 219 | static void __qseecom_disable_clk(enum qseecom_ce_hw_instance ce); |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 220 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 221 | static int __qseecom_is_svc_unique(struct qseecom_dev_handle *data, |
Mona Hossain | 0af10ab | 2012-02-28 18:26:41 -0800 | [diff] [blame] | 222 | struct qseecom_register_listener_req *svc) |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 223 | { |
| 224 | struct qseecom_registered_listener_list *ptr; |
| 225 | int unique = 1; |
| 226 | unsigned long flags; |
| 227 | |
| 228 | spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags); |
| 229 | list_for_each_entry(ptr, &qseecom.registered_listener_list_head, list) { |
Mona Hossain | 0af10ab | 2012-02-28 18:26:41 -0800 | [diff] [blame] | 230 | if (ptr->svc.listener_id == svc->listener_id) { |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 231 | pr_err("Service id: %u is already registered\n", |
| 232 | ptr->svc.listener_id); |
| 233 | unique = 0; |
| 234 | break; |
| 235 | } |
| 236 | } |
| 237 | spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags); |
| 238 | return unique; |
| 239 | } |
| 240 | |
| 241 | static struct qseecom_registered_listener_list *__qseecom_find_svc( |
| 242 | int32_t listener_id) |
| 243 | { |
| 244 | struct qseecom_registered_listener_list *entry = NULL; |
| 245 | unsigned long flags; |
| 246 | |
| 247 | spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags); |
| 248 | list_for_each_entry(entry, &qseecom.registered_listener_list_head, list) |
| 249 | { |
| 250 | if (entry->svc.listener_id == listener_id) |
| 251 | break; |
| 252 | } |
| 253 | spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags); |
AnilKumar Chimata | 69b857a | 2013-07-23 23:03:26 +0530 | [diff] [blame] | 254 | |
| 255 | if ((entry != NULL) && (entry->svc.listener_id != listener_id)) { |
| 256 | pr_err("Service id: %u is not found\n", listener_id); |
| 257 | return NULL; |
| 258 | } |
| 259 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 260 | return entry; |
| 261 | } |
| 262 | |
| 263 | static int __qseecom_set_sb_memory(struct qseecom_registered_listener_list *svc, |
| 264 | struct qseecom_dev_handle *handle, |
| 265 | struct qseecom_register_listener_req *listener) |
| 266 | { |
| 267 | int ret = 0; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 268 | struct qseecom_register_listener_ireq req; |
| 269 | struct qseecom_command_scm_resp resp; |
| 270 | ion_phys_addr_t pa; |
| 271 | |
| 272 | /* Get the handle of the shared fd */ |
Laura Abbott | b14ed96 | 2012-01-30 14:18:08 -0800 | [diff] [blame] | 273 | svc->ihandle = ion_import_dma_buf(qseecom.ion_clnt, |
| 274 | listener->ifd_data_fd); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 275 | if (svc->ihandle == NULL) { |
| 276 | pr_err("Ion client could not retrieve the handle\n"); |
| 277 | return -ENOMEM; |
| 278 | } |
| 279 | |
| 280 | /* Get the physical address of the ION BUF */ |
| 281 | ret = ion_phys(qseecom.ion_clnt, svc->ihandle, &pa, &svc->sb_length); |
| 282 | |
| 283 | /* Populate the structure for sending scm call to load image */ |
Mitchel Humpherys | 911b4b7 | 2012-09-12 14:42:50 -0700 | [diff] [blame] | 284 | svc->sb_virt = (char *) ion_map_kernel(qseecom.ion_clnt, svc->ihandle); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 285 | svc->sb_phys = pa; |
| 286 | |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 287 | req.qsee_cmd_id = QSEOS_REGISTER_LISTENER; |
| 288 | req.listener_id = svc->svc.listener_id; |
| 289 | req.sb_len = svc->sb_length; |
| 290 | req.sb_ptr = (void *)svc->sb_phys; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 291 | |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 292 | resp.result = QSEOS_RESULT_INCOMPLETE; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 293 | |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 294 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, &req, |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 295 | sizeof(req), &resp, sizeof(resp)); |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 296 | if (ret) { |
| 297 | pr_err("qseecom_scm_call failed with err: %d\n", ret); |
| 298 | return -EINVAL; |
| 299 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 300 | |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 301 | if (resp.result != QSEOS_RESULT_SUCCESS) { |
| 302 | pr_err("Error SB registration req: resp.result = %d\n", |
| 303 | resp.result); |
| 304 | return -EPERM; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 305 | } |
| 306 | return 0; |
| 307 | } |
| 308 | |
| 309 | static int qseecom_register_listener(struct qseecom_dev_handle *data, |
| 310 | void __user *argp) |
| 311 | { |
| 312 | int ret = 0; |
| 313 | unsigned long flags; |
| 314 | struct qseecom_register_listener_req rcvd_lstnr; |
| 315 | struct qseecom_registered_listener_list *new_entry; |
| 316 | |
| 317 | ret = copy_from_user(&rcvd_lstnr, argp, sizeof(rcvd_lstnr)); |
| 318 | if (ret) { |
| 319 | pr_err("copy_from_user failed\n"); |
| 320 | return ret; |
| 321 | } |
Mona Hossain | 0af10ab | 2012-02-28 18:26:41 -0800 | [diff] [blame] | 322 | data->listener.id = 0; |
Mona Hossain | 0af10ab | 2012-02-28 18:26:41 -0800 | [diff] [blame] | 323 | if (!__qseecom_is_svc_unique(data, &rcvd_lstnr)) { |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 324 | pr_err("Service is not unique and is already registered\n"); |
Mona Hossain | 0af10ab | 2012-02-28 18:26:41 -0800 | [diff] [blame] | 325 | data->released = true; |
| 326 | return -EBUSY; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 327 | } |
| 328 | |
| 329 | new_entry = kmalloc(sizeof(*new_entry), GFP_KERNEL); |
| 330 | if (!new_entry) { |
| 331 | pr_err("kmalloc failed\n"); |
| 332 | return -ENOMEM; |
| 333 | } |
| 334 | memcpy(&new_entry->svc, &rcvd_lstnr, sizeof(rcvd_lstnr)); |
| 335 | new_entry->rcv_req_flag = 0; |
| 336 | |
| 337 | new_entry->svc.listener_id = rcvd_lstnr.listener_id; |
| 338 | new_entry->sb_length = rcvd_lstnr.sb_size; |
| 339 | if (__qseecom_set_sb_memory(new_entry, data, &rcvd_lstnr)) { |
| 340 | pr_err("qseecom_set_sb_memoryfailed\n"); |
| 341 | kzfree(new_entry); |
| 342 | return -ENOMEM; |
| 343 | } |
Mona Hossain | 0af10ab | 2012-02-28 18:26:41 -0800 | [diff] [blame] | 344 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 345 | data->listener.id = rcvd_lstnr.listener_id; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 346 | init_waitqueue_head(&new_entry->rcv_req_wq); |
| 347 | |
| 348 | spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags); |
| 349 | list_add_tail(&new_entry->list, &qseecom.registered_listener_list_head); |
| 350 | spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags); |
Mona Hossain | 0af10ab | 2012-02-28 18:26:41 -0800 | [diff] [blame] | 351 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 352 | return ret; |
| 353 | } |
| 354 | |
| 355 | static int qseecom_unregister_listener(struct qseecom_dev_handle *data) |
| 356 | { |
| 357 | int ret = 0; |
| 358 | unsigned long flags; |
| 359 | uint32_t unmap_mem = 0; |
| 360 | struct qseecom_register_listener_ireq req; |
| 361 | struct qseecom_registered_listener_list *ptr_svc = NULL; |
| 362 | struct qseecom_command_scm_resp resp; |
| 363 | struct ion_handle *ihandle = NULL; /* Retrieve phy addr */ |
| 364 | |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 365 | req.qsee_cmd_id = QSEOS_DEREGISTER_LISTENER; |
| 366 | req.listener_id = data->listener.id; |
| 367 | resp.result = QSEOS_RESULT_INCOMPLETE; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 368 | |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 369 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, &req, |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 370 | sizeof(req), &resp, sizeof(resp)); |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 371 | if (ret) { |
| 372 | pr_err("scm_call() failed with err: %d (lstnr id=%d)\n", |
| 373 | ret, data->listener.id); |
| 374 | return ret; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 375 | } |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 376 | |
| 377 | if (resp.result != QSEOS_RESULT_SUCCESS) { |
| 378 | pr_err("Failed resp.result=%d,(lstnr id=%d)\n", |
| 379 | resp.result, data->listener.id); |
| 380 | return -EPERM; |
| 381 | } |
| 382 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 383 | data->abort = 1; |
| 384 | spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags); |
| 385 | list_for_each_entry(ptr_svc, &qseecom.registered_listener_list_head, |
| 386 | list) { |
| 387 | if (ptr_svc->svc.listener_id == data->listener.id) { |
| 388 | wake_up_all(&ptr_svc->rcv_req_wq); |
| 389 | break; |
| 390 | } |
| 391 | } |
| 392 | spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags); |
| 393 | |
| 394 | while (atomic_read(&data->ioctl_count) > 1) { |
Mona Hossain | acea102 | 2012-04-09 13:37:27 -0700 | [diff] [blame] | 395 | if (wait_event_freezable(data->abort_wq, |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 396 | atomic_read(&data->ioctl_count) <= 1)) { |
| 397 | pr_err("Interrupted from abort\n"); |
| 398 | ret = -ERESTARTSYS; |
| 399 | break; |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags); |
| 404 | list_for_each_entry(ptr_svc, |
| 405 | &qseecom.registered_listener_list_head, |
| 406 | list) |
| 407 | { |
| 408 | if (ptr_svc->svc.listener_id == data->listener.id) { |
| 409 | if (ptr_svc->sb_virt) { |
| 410 | unmap_mem = 1; |
| 411 | ihandle = ptr_svc->ihandle; |
| 412 | } |
| 413 | list_del(&ptr_svc->list); |
| 414 | kzfree(ptr_svc); |
| 415 | break; |
| 416 | } |
| 417 | } |
| 418 | spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags); |
| 419 | |
| 420 | /* Unmap the memory */ |
| 421 | if (unmap_mem) { |
| 422 | if (!IS_ERR_OR_NULL(ihandle)) { |
| 423 | ion_unmap_kernel(qseecom.ion_clnt, ihandle); |
| 424 | ion_free(qseecom.ion_clnt, ihandle); |
| 425 | } |
| 426 | } |
| 427 | data->released = true; |
| 428 | return ret; |
| 429 | } |
| 430 | |
| 431 | static int qseecom_set_client_mem_param(struct qseecom_dev_handle *data, |
| 432 | void __user *argp) |
| 433 | { |
| 434 | ion_phys_addr_t pa; |
| 435 | int32_t ret; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 436 | struct qseecom_set_sb_mem_param_req req; |
| 437 | uint32_t len; |
| 438 | |
| 439 | /* Copy the relevant information needed for loading the image */ |
Hariprasad Dhalinarasimha | e201495 | 2013-10-01 18:25:21 -0700 | [diff] [blame] | 440 | if (copy_from_user(&req, (void __user *)argp, sizeof(req))) |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 441 | return -EFAULT; |
| 442 | |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 443 | if ((req.ifd_data_fd <= 0) || (req.virt_sb_base == 0) || |
| 444 | (req.sb_len == 0)) { |
| 445 | pr_err("Inavlid input(s)ion_fd(%d), sb_len(%d), vaddr(0x%x)\n", |
| 446 | req.ifd_data_fd, req.sb_len, req.virt_sb_base); |
| 447 | return -EFAULT; |
| 448 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 449 | /* Get the handle of the shared fd */ |
Laura Abbott | b14ed96 | 2012-01-30 14:18:08 -0800 | [diff] [blame] | 450 | data->client.ihandle = ion_import_dma_buf(qseecom.ion_clnt, |
| 451 | req.ifd_data_fd); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 452 | if (IS_ERR_OR_NULL(data->client.ihandle)) { |
| 453 | pr_err("Ion client could not retrieve the handle\n"); |
| 454 | return -ENOMEM; |
| 455 | } |
| 456 | /* Get the physical address of the ION BUF */ |
| 457 | ret = ion_phys(qseecom.ion_clnt, data->client.ihandle, &pa, &len); |
| 458 | /* Populate the structure for sending scm call to load image */ |
| 459 | data->client.sb_virt = (char *) ion_map_kernel(qseecom.ion_clnt, |
Mitchel Humpherys | 911b4b7 | 2012-09-12 14:42:50 -0700 | [diff] [blame] | 460 | data->client.ihandle); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 461 | data->client.sb_phys = pa; |
| 462 | data->client.sb_length = req.sb_len; |
| 463 | data->client.user_virt_sb_base = req.virt_sb_base; |
| 464 | return 0; |
| 465 | } |
| 466 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 467 | static int __qseecom_listener_has_sent_rsp(struct qseecom_dev_handle *data) |
| 468 | { |
| 469 | int ret; |
| 470 | ret = (qseecom.send_resp_flag != 0); |
| 471 | return ret || data->abort; |
| 472 | } |
| 473 | |
| 474 | static int __qseecom_process_incomplete_cmd(struct qseecom_dev_handle *data, |
| 475 | struct qseecom_command_scm_resp *resp) |
| 476 | { |
| 477 | int ret = 0; |
Mona Hossain | 0b3a279 | 2013-02-05 17:38:55 -0800 | [diff] [blame] | 478 | int rc = 0; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 479 | uint32_t lstnr; |
| 480 | unsigned long flags; |
| 481 | struct qseecom_client_listener_data_irsp send_data_rsp; |
| 482 | struct qseecom_registered_listener_list *ptr_svc = NULL; |
Mona Hossain | 91da2c5 | 2013-03-29 17:28:31 -0700 | [diff] [blame] | 483 | sigset_t new_sigset; |
| 484 | sigset_t old_sigset; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 485 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 486 | while (resp->result == QSEOS_RESULT_INCOMPLETE) { |
| 487 | lstnr = resp->data; |
| 488 | /* |
| 489 | * Wake up blocking lsitener service with the lstnr id |
| 490 | */ |
| 491 | spin_lock_irqsave(&qseecom.registered_listener_list_lock, |
| 492 | flags); |
| 493 | list_for_each_entry(ptr_svc, |
| 494 | &qseecom.registered_listener_list_head, list) { |
| 495 | if (ptr_svc->svc.listener_id == lstnr) { |
| 496 | ptr_svc->rcv_req_flag = 1; |
| 497 | wake_up_interruptible(&ptr_svc->rcv_req_wq); |
| 498 | break; |
| 499 | } |
| 500 | } |
| 501 | spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, |
| 502 | flags); |
Zhen Kong | c4d4951 | 2013-10-03 13:47:23 -0700 | [diff] [blame] | 503 | |
| 504 | if (ptr_svc == NULL) { |
| 505 | pr_err("Listener Svc %d does not exist\n", lstnr); |
| 506 | return -EINVAL; |
| 507 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 508 | if (ptr_svc->svc.listener_id != lstnr) { |
| 509 | pr_warning("Service requested for does on exist\n"); |
| 510 | return -ERESTARTSYS; |
| 511 | } |
| 512 | pr_debug("waking up rcv_req_wq and " |
| 513 | "waiting for send_resp_wq\n"); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 514 | |
Mona Hossain | 91da2c5 | 2013-03-29 17:28:31 -0700 | [diff] [blame] | 515 | /* initialize the new signal mask with all signals*/ |
| 516 | sigfillset(&new_sigset); |
| 517 | /* block all signals */ |
| 518 | sigprocmask(SIG_SETMASK, &new_sigset, &old_sigset); |
| 519 | |
| 520 | do { |
| 521 | if (!wait_event_freezable(qseecom.send_resp_wq, |
| 522 | __qseecom_listener_has_sent_rsp(data))) |
| 523 | break; |
| 524 | } while (1); |
| 525 | |
| 526 | /* restore signal mask */ |
| 527 | sigprocmask(SIG_SETMASK, &old_sigset, NULL); |
| 528 | if (data->abort) { |
Mona Hossain | eaa69b7 | 2013-04-15 17:20:15 -0700 | [diff] [blame] | 529 | pr_err("Abort clnt %d waiting on lstnr svc %d, ret %d", |
| 530 | data->client.app_id, lstnr, ret); |
Mona Hossain | 91da2c5 | 2013-03-29 17:28:31 -0700 | [diff] [blame] | 531 | rc = -ENODEV; |
Mona Hossain | 0b3a279 | 2013-02-05 17:38:55 -0800 | [diff] [blame] | 532 | send_data_rsp.status = QSEOS_RESULT_FAILURE; |
| 533 | } else { |
| 534 | send_data_rsp.status = QSEOS_RESULT_SUCCESS; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 535 | } |
Mona Hossain | 0b3a279 | 2013-02-05 17:38:55 -0800 | [diff] [blame] | 536 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 537 | qseecom.send_resp_flag = 0; |
| 538 | send_data_rsp.qsee_cmd_id = QSEOS_LISTENER_DATA_RSP_COMMAND; |
| 539 | send_data_rsp.listener_id = lstnr ; |
Hariprasad Dhalinarasimha | 682d1c3 | 2013-05-19 21:22:10 -0700 | [diff] [blame] | 540 | if (ptr_svc) |
| 541 | msm_ion_do_cache_op(qseecom.ion_clnt, ptr_svc->ihandle, |
| 542 | ptr_svc->sb_virt, ptr_svc->sb_length, |
| 543 | ION_IOC_CLEAN_INV_CACHES); |
Zhen Kong | 7812dc1 | 2013-07-09 17:12:55 -0700 | [diff] [blame] | 544 | |
| 545 | if (lstnr == RPMB_SERVICE) |
| 546 | __qseecom_enable_clk(CLK_QSEE); |
| 547 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 548 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 549 | (const void *)&send_data_rsp, |
| 550 | sizeof(send_data_rsp), resp, |
| 551 | sizeof(*resp)); |
| 552 | if (ret) { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 553 | pr_err("scm_call() failed with err: %d (app_id = %d)\n", |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 554 | ret, data->client.app_id); |
Zhen Kong | 7812dc1 | 2013-07-09 17:12:55 -0700 | [diff] [blame] | 555 | if (lstnr == RPMB_SERVICE) |
| 556 | __qseecom_disable_clk(CLK_QSEE); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 557 | return ret; |
| 558 | } |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 559 | if ((resp->result != QSEOS_RESULT_SUCCESS) && |
| 560 | (resp->result != QSEOS_RESULT_INCOMPLETE)) { |
| 561 | pr_err("fail:resp res= %d,app_id = %d,lstr = %d\n", |
| 562 | resp->result, data->client.app_id, lstnr); |
| 563 | ret = -EINVAL; |
Mona Hossain | bb0bca1 | 2012-04-12 11:47:45 -0700 | [diff] [blame] | 564 | } |
Zhen Kong | 7812dc1 | 2013-07-09 17:12:55 -0700 | [diff] [blame] | 565 | if (lstnr == RPMB_SERVICE) |
| 566 | __qseecom_disable_clk(CLK_QSEE); |
| 567 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 568 | } |
Mona Hossain | 0b3a279 | 2013-02-05 17:38:55 -0800 | [diff] [blame] | 569 | if (rc) |
| 570 | return rc; |
| 571 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 572 | return ret; |
| 573 | } |
| 574 | |
Ramesh Masavarapu | 1ee4ac8 | 2012-06-22 15:38:34 -0700 | [diff] [blame] | 575 | static int __qseecom_check_app_exists(struct qseecom_check_app_ireq req) |
| 576 | { |
| 577 | int32_t ret; |
| 578 | struct qseecom_command_scm_resp resp; |
| 579 | |
| 580 | /* SCM_CALL to check if app_id for the mentioned app exists */ |
| 581 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, &req, |
| 582 | sizeof(struct qseecom_check_app_ireq), |
| 583 | &resp, sizeof(resp)); |
| 584 | if (ret) { |
| 585 | pr_err("scm_call to check if app is already loaded failed\n"); |
| 586 | return -EINVAL; |
| 587 | } |
| 588 | |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 589 | if (resp.result == QSEOS_RESULT_FAILURE) { |
| 590 | return 0; |
| 591 | } else { |
| 592 | switch (resp.resp_type) { |
| 593 | /*qsee returned listener type response */ |
| 594 | case QSEOS_LISTENER_ID: |
| 595 | pr_err("resp type is of listener type instead of app"); |
| 596 | return -EINVAL; |
| 597 | break; |
| 598 | case QSEOS_APP_ID: |
| 599 | return resp.data; |
| 600 | default: |
| 601 | pr_err("invalid resp type (%d) from qsee", |
| 602 | resp.resp_type); |
| 603 | return -ENODEV; |
| 604 | break; |
| 605 | } |
| 606 | } |
Ramesh Masavarapu | 1ee4ac8 | 2012-06-22 15:38:34 -0700 | [diff] [blame] | 607 | } |
| 608 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 609 | static int qseecom_load_app(struct qseecom_dev_handle *data, void __user *argp) |
| 610 | { |
| 611 | struct qseecom_registered_app_list *entry = NULL; |
| 612 | unsigned long flags = 0; |
| 613 | u32 app_id = 0; |
| 614 | struct ion_handle *ihandle; /* Ion handle */ |
| 615 | struct qseecom_load_img_req load_img_req; |
| 616 | int32_t ret; |
| 617 | ion_phys_addr_t pa = 0; |
| 618 | uint32_t len; |
| 619 | struct qseecom_command_scm_resp resp; |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 620 | struct qseecom_check_app_ireq req; |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 621 | struct qseecom_load_app_ireq load_req; |
| 622 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 623 | /* Copy the relevant information needed for loading the image */ |
Hariprasad Dhalinarasimha | e201495 | 2013-10-01 18:25:21 -0700 | [diff] [blame] | 624 | if (copy_from_user(&load_img_req, |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 625 | (void __user *)argp, |
| 626 | sizeof(struct qseecom_load_img_req))) { |
| 627 | pr_err("copy_from_user failed\n"); |
| 628 | return -EFAULT; |
| 629 | } |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 630 | /* Vote for the SFPB clock */ |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 631 | ret = qsee_vote_for_clock(data, CLK_SFPB); |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 632 | if (ret) |
| 633 | pr_warning("Unable to vote for SFPB clock"); |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 634 | req.qsee_cmd_id = QSEOS_APP_LOOKUP_COMMAND; |
Hariprasad Dhalinarasimha | 7a01882 | 2013-10-03 16:52:16 -0700 | [diff] [blame] | 635 | load_img_req.img_name[MAX_APP_NAME_SIZE-1] = '\0'; |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 636 | memcpy(req.app_name, load_img_req.img_name, MAX_APP_NAME_SIZE); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 637 | |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 638 | ret = __qseecom_check_app_exists(req); |
AnilKumar Chimata | 5370c7a | 2013-06-12 12:43:55 +0530 | [diff] [blame] | 639 | if (ret < 0) { |
| 640 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 641 | return ret; |
AnilKumar Chimata | 5370c7a | 2013-06-12 12:43:55 +0530 | [diff] [blame] | 642 | } |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 643 | |
AnilKumar Chimata | 5370c7a | 2013-06-12 12:43:55 +0530 | [diff] [blame] | 644 | app_id = ret; |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 645 | if (app_id) { |
Mona Hossain | 7c44320 | 2013-04-18 12:08:58 -0700 | [diff] [blame] | 646 | pr_debug("App id %d (%s) already exists\n", app_id, |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 647 | (char *)(req.app_name)); |
| 648 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 649 | list_for_each_entry(entry, |
| 650 | &qseecom.registered_app_list_head, list){ |
| 651 | if (entry->app_id == app_id) { |
| 652 | entry->ref_cnt++; |
| 653 | break; |
| 654 | } |
| 655 | } |
| 656 | spin_unlock_irqrestore( |
| 657 | &qseecom.registered_app_list_lock, flags); |
| 658 | } else { |
| 659 | pr_warn("App (%s) does'nt exist, loading apps for first time\n", |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 660 | (char *)(load_img_req.img_name)); |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 661 | /* Get the handle of the shared fd */ |
| 662 | ihandle = ion_import_dma_buf(qseecom.ion_clnt, |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 663 | load_img_req.ifd_data_fd); |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 664 | if (IS_ERR_OR_NULL(ihandle)) { |
| 665 | pr_err("Ion client could not retrieve the handle\n"); |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 666 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 667 | return -ENOMEM; |
| 668 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 669 | |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 670 | /* Get the physical address of the ION BUF */ |
| 671 | ret = ion_phys(qseecom.ion_clnt, ihandle, &pa, &len); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 672 | |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 673 | /* Populate the structure for sending scm call to load image */ |
| 674 | memcpy(load_req.app_name, load_img_req.img_name, |
| 675 | MAX_APP_NAME_SIZE); |
| 676 | load_req.qsee_cmd_id = QSEOS_APP_START_COMMAND; |
| 677 | load_req.mdt_len = load_img_req.mdt_len; |
| 678 | load_req.img_len = load_img_req.img_len; |
| 679 | load_req.phy_addr = pa; |
Hariprasad Dhalinarasimha | 682d1c3 | 2013-05-19 21:22:10 -0700 | [diff] [blame] | 680 | msm_ion_do_cache_op(qseecom.ion_clnt, ihandle, NULL, len, |
| 681 | ION_IOC_CLEAN_INV_CACHES); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 682 | |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 683 | /* SCM_CALL to load the app and get the app_id back */ |
| 684 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, &load_req, |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 685 | sizeof(struct qseecom_load_app_ireq), |
| 686 | &resp, sizeof(resp)); |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 687 | if (ret) { |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 688 | pr_err("scm_call to load app failed\n"); |
Hariprasad Dhalinarasimha | 56d3512 | 2013-02-28 17:55:51 -0800 | [diff] [blame] | 689 | if (!IS_ERR_OR_NULL(ihandle)) |
| 690 | ion_free(qseecom.ion_clnt, ihandle); |
| 691 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 692 | return -EINVAL; |
| 693 | } |
| 694 | |
| 695 | if (resp.result == QSEOS_RESULT_FAILURE) { |
| 696 | pr_err("scm_call rsp.result is QSEOS_RESULT_FAILURE\n"); |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 697 | if (!IS_ERR_OR_NULL(ihandle)) |
| 698 | ion_free(qseecom.ion_clnt, ihandle); |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 699 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 700 | return -EFAULT; |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 701 | } |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 702 | |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 703 | if (resp.result == QSEOS_RESULT_INCOMPLETE) { |
| 704 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 705 | if (ret) { |
| 706 | pr_err("process_incomplete_cmd failed err: %d\n", |
| 707 | ret); |
| 708 | if (!IS_ERR_OR_NULL(ihandle)) |
| 709 | ion_free(qseecom.ion_clnt, ihandle); |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 710 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 711 | return ret; |
| 712 | } |
| 713 | } |
| 714 | |
| 715 | if (resp.result != QSEOS_RESULT_SUCCESS) { |
| 716 | pr_err("scm_call failed resp.result unknown, %d\n", |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 717 | resp.result); |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 718 | if (!IS_ERR_OR_NULL(ihandle)) |
| 719 | ion_free(qseecom.ion_clnt, ihandle); |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 720 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 721 | return -EFAULT; |
| 722 | } |
| 723 | |
| 724 | app_id = resp.data; |
| 725 | |
| 726 | entry = kmalloc(sizeof(*entry), GFP_KERNEL); |
| 727 | if (!entry) { |
| 728 | pr_err("kmalloc failed\n"); |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 729 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 730 | return -ENOMEM; |
| 731 | } |
| 732 | entry->app_id = app_id; |
| 733 | entry->ref_cnt = 1; |
| 734 | |
| 735 | /* Deallocate the handle */ |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 736 | if (!IS_ERR_OR_NULL(ihandle)) |
| 737 | ion_free(qseecom.ion_clnt, ihandle); |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 738 | |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 739 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 740 | list_add_tail(&entry->list, &qseecom.registered_app_list_head); |
| 741 | spin_unlock_irqrestore(&qseecom.registered_app_list_lock, |
| 742 | flags); |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 743 | |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 744 | pr_warn("App with id %d (%s) now loaded\n", app_id, |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 745 | (char *)(load_img_req.img_name)); |
Mona Hossain | 436b75f | 2012-11-20 17:10:40 -0800 | [diff] [blame] | 746 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 747 | data->client.app_id = app_id; |
| 748 | load_img_req.app_id = app_id; |
| 749 | if (copy_to_user(argp, &load_img_req, sizeof(load_img_req))) { |
| 750 | pr_err("copy_to_user failed\n"); |
| 751 | kzfree(entry); |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 752 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 753 | return -EFAULT; |
| 754 | } |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 755 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 756 | return 0; |
| 757 | } |
| 758 | |
| 759 | static int __qseecom_cleanup_app(struct qseecom_dev_handle *data) |
| 760 | { |
| 761 | wake_up_all(&qseecom.send_resp_wq); |
| 762 | while (atomic_read(&data->ioctl_count) > 1) { |
Mona Hossain | acea102 | 2012-04-09 13:37:27 -0700 | [diff] [blame] | 763 | if (wait_event_freezable(data->abort_wq, |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 764 | atomic_read(&data->ioctl_count) <= 1)) { |
| 765 | pr_err("Interrupted from abort\n"); |
| 766 | return -ERESTARTSYS; |
| 767 | break; |
| 768 | } |
| 769 | } |
| 770 | /* Set unload app */ |
| 771 | return 1; |
| 772 | } |
| 773 | |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 774 | static int qseecom_unmap_ion_allocated_memory(struct qseecom_dev_handle *data) |
| 775 | { |
| 776 | int ret = 0; |
| 777 | if (!IS_ERR_OR_NULL(data->client.ihandle)) { |
| 778 | ion_unmap_kernel(qseecom.ion_clnt, data->client.ihandle); |
| 779 | ion_free(qseecom.ion_clnt, data->client.ihandle); |
| 780 | data->client.ihandle = NULL; |
| 781 | } |
| 782 | return ret; |
| 783 | } |
| 784 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 785 | static int qseecom_unload_app(struct qseecom_dev_handle *data) |
| 786 | { |
| 787 | unsigned long flags; |
| 788 | int ret = 0; |
| 789 | struct qseecom_command_scm_resp resp; |
| 790 | struct qseecom_registered_app_list *ptr_app; |
Mona Hossain | 340dba8 | 2012-08-07 19:54:46 -0700 | [diff] [blame] | 791 | bool unload = false; |
| 792 | bool found_app = false; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 793 | |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 794 | if (data->client.app_id > 0) { |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 795 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 796 | list_for_each_entry(ptr_app, &qseecom.registered_app_list_head, |
| 797 | list) { |
| 798 | if (ptr_app->app_id == data->client.app_id) { |
Mona Hossain | 340dba8 | 2012-08-07 19:54:46 -0700 | [diff] [blame] | 799 | found_app = true; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 800 | if (ptr_app->ref_cnt == 1) { |
Mona Hossain | 340dba8 | 2012-08-07 19:54:46 -0700 | [diff] [blame] | 801 | unload = true; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 802 | break; |
| 803 | } else { |
| 804 | ptr_app->ref_cnt--; |
Mona Hossain | 7c44320 | 2013-04-18 12:08:58 -0700 | [diff] [blame] | 805 | pr_debug("Can't unload app(%d) inuse\n", |
Mona Hossain | a5f1aab | 2012-03-29 10:18:07 -0700 | [diff] [blame] | 806 | ptr_app->app_id); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 807 | break; |
| 808 | } |
| 809 | } |
| 810 | } |
| 811 | spin_unlock_irqrestore(&qseecom.registered_app_list_lock, |
| 812 | flags); |
Mona Hossain | 1fb538f | 2012-08-30 16:19:38 -0700 | [diff] [blame] | 813 | if (found_app == false) { |
| 814 | pr_err("Cannot find app with id = %d\n", |
| 815 | data->client.app_id); |
| 816 | return -EINVAL; |
| 817 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 818 | } |
| 819 | |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 820 | if (unload) { |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 821 | struct qseecom_unload_app_ireq req; |
| 822 | |
Mona Hossain | 340dba8 | 2012-08-07 19:54:46 -0700 | [diff] [blame] | 823 | __qseecom_cleanup_app(data); |
| 824 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 825 | list_del(&ptr_app->list); |
| 826 | kzfree(ptr_app); |
| 827 | spin_unlock_irqrestore(&qseecom.registered_app_list_lock, |
| 828 | flags); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 829 | /* Populate the structure for sending scm call to load image */ |
| 830 | req.qsee_cmd_id = QSEOS_APP_SHUTDOWN_COMMAND; |
| 831 | req.app_id = data->client.app_id; |
| 832 | |
| 833 | /* SCM_CALL to unload the app */ |
| 834 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, &req, |
| 835 | sizeof(struct qseecom_unload_app_ireq), |
| 836 | &resp, sizeof(resp)); |
| 837 | if (ret) { |
Mona Hossain | bb0bca1 | 2012-04-12 11:47:45 -0700 | [diff] [blame] | 838 | pr_err("scm_call to unload app (id = %d) failed\n", |
| 839 | req.app_id); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 840 | return -EFAULT; |
Mona Hossain | bb0bca1 | 2012-04-12 11:47:45 -0700 | [diff] [blame] | 841 | } else { |
| 842 | pr_warn("App id %d now unloaded\n", req.app_id); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 843 | } |
| 844 | if (resp.result == QSEOS_RESULT_INCOMPLETE) { |
| 845 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 846 | if (ret) { |
| 847 | pr_err("process_incomplete_cmd fail err: %d\n", |
| 848 | ret); |
| 849 | return ret; |
| 850 | } |
| 851 | } |
| 852 | } |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 853 | qseecom_unmap_ion_allocated_memory(data); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 854 | data->released = true; |
| 855 | return ret; |
| 856 | } |
| 857 | |
| 858 | static uint32_t __qseecom_uvirt_to_kphys(struct qseecom_dev_handle *data, |
| 859 | uint32_t virt) |
| 860 | { |
| 861 | return data->client.sb_phys + (virt - data->client.user_virt_sb_base); |
| 862 | } |
| 863 | |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 864 | int __qseecom_process_rpmb_svc_cmd(struct qseecom_dev_handle *data_ptr, |
| 865 | struct qseecom_send_svc_cmd_req *req_ptr, |
| 866 | struct qseecom_client_send_service_ireq *send_svc_ireq_ptr) |
| 867 | { |
| 868 | int ret = 0; |
Hariprasad Dhalinarasimha | fd86ecd | 2013-09-27 18:38:53 -0700 | [diff] [blame] | 869 | void *req_buf = NULL; |
| 870 | |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 871 | if ((req_ptr == NULL) || (send_svc_ireq_ptr == NULL)) { |
| 872 | pr_err("Error with pointer: req_ptr = %p, send_svc_ptr = %p\n", |
| 873 | req_ptr, send_svc_ireq_ptr); |
| 874 | return -EINVAL; |
| 875 | } |
Hariprasad Dhalinarasimha | fd86ecd | 2013-09-27 18:38:53 -0700 | [diff] [blame] | 876 | |
Hariprasad Dhalinarasimha | 10aed74 | 2013-11-18 11:54:03 -0800 | [diff] [blame^] | 877 | if ((!req_ptr->cmd_req_buf) || (!req_ptr->resp_buf)) { |
| 878 | pr_err("Invalid req/resp buffer, exiting\n"); |
| 879 | return -EINVAL; |
| 880 | } |
| 881 | |
Hariprasad Dhalinarasimha | fd86ecd | 2013-09-27 18:38:53 -0700 | [diff] [blame] | 882 | if (((uint32_t)req_ptr->cmd_req_buf < |
| 883 | data_ptr->client.user_virt_sb_base) |
| 884 | || ((uint32_t)req_ptr->cmd_req_buf >= |
| 885 | (data_ptr->client.user_virt_sb_base + |
| 886 | data_ptr->client.sb_length))) { |
| 887 | pr_err("cmd buffer address not within shared bufffer\n"); |
| 888 | return -EINVAL; |
| 889 | } |
| 890 | |
| 891 | |
| 892 | if (((uint32_t)req_ptr->resp_buf < data_ptr->client.user_virt_sb_base) |
| 893 | || ((uint32_t)req_ptr->resp_buf >= |
| 894 | (data_ptr->client.user_virt_sb_base + |
| 895 | data_ptr->client.sb_length))){ |
| 896 | pr_err("response buffer address not within shared bufffer\n"); |
| 897 | return -EINVAL; |
| 898 | } |
| 899 | |
| 900 | req_buf = data_ptr->client.sb_virt; |
| 901 | |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 902 | send_svc_ireq_ptr->qsee_cmd_id = req_ptr->cmd_id; |
| 903 | send_svc_ireq_ptr->key_type = |
Hariprasad Dhalinarasimha | fd86ecd | 2013-09-27 18:38:53 -0700 | [diff] [blame] | 904 | ((struct qseecom_rpmb_provision_key *)req_buf)->key_type; |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 905 | send_svc_ireq_ptr->req_len = req_ptr->cmd_req_len; |
| 906 | send_svc_ireq_ptr->rsp_ptr = (void *)(__qseecom_uvirt_to_kphys(data_ptr, |
| 907 | (uint32_t)req_ptr->resp_buf)); |
| 908 | send_svc_ireq_ptr->rsp_len = req_ptr->resp_len; |
| 909 | |
| 910 | pr_debug("CMD ID (%x), KEY_TYPE (%d)\n", send_svc_ireq_ptr->qsee_cmd_id, |
| 911 | ((struct qseecom_rpmb_provision_key *)req_ptr->cmd_req_buf)->key_type); |
| 912 | return ret; |
| 913 | } |
| 914 | |
| 915 | static int qseecom_send_service_cmd(struct qseecom_dev_handle *data, |
| 916 | void __user *argp) |
| 917 | { |
| 918 | int ret = 0; |
| 919 | struct qseecom_client_send_service_ireq send_svc_ireq; |
| 920 | struct qseecom_command_scm_resp resp; |
| 921 | struct qseecom_send_svc_cmd_req req; |
| 922 | /*struct qseecom_command_scm_resp resp;*/ |
| 923 | |
Hariprasad Dhalinarasimha | e201495 | 2013-10-01 18:25:21 -0700 | [diff] [blame] | 924 | if (copy_from_user(&req, |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 925 | (void __user *)argp, |
| 926 | sizeof(req))) { |
| 927 | pr_err("copy_from_user failed\n"); |
| 928 | return -EFAULT; |
| 929 | } |
| 930 | |
| 931 | if (req.resp_buf == NULL) { |
| 932 | pr_err("cmd buffer or response buffer is null\n"); |
| 933 | return -EINVAL; |
| 934 | } |
| 935 | |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 936 | switch (req.cmd_id) { |
Hariprasad Dhalinarasimha | b383224 | 2013-07-23 15:35:26 -0700 | [diff] [blame] | 937 | case QSEOS_RPMB_PROVISION_KEY_COMMAND: |
| 938 | case QSEOS_RPMB_ERASE_COMMAND: |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 939 | if (__qseecom_process_rpmb_svc_cmd(data, &req, |
| 940 | &send_svc_ireq)) |
| 941 | return -EINVAL; |
| 942 | break; |
| 943 | default: |
| 944 | pr_err("Unsupported cmd_id %d\n", req.cmd_id); |
| 945 | return -EINVAL; |
| 946 | } |
AnilKumar Chimata | 80f1d1b | 2013-08-03 05:16:14 +0530 | [diff] [blame] | 947 | |
| 948 | ret = qsee_vote_for_clock(data, CLK_DFAB); |
| 949 | if (ret) { |
| 950 | pr_err("Failed to vote for DFAB clock%d\n", ret); |
| 951 | return ret; |
| 952 | } |
| 953 | ret = qsee_vote_for_clock(data, CLK_SFPB); |
| 954 | if (ret) { |
| 955 | pr_err("Failed to vote for SFPB clock%d\n", ret); |
| 956 | goto exit_reset_dfab_freq; |
| 957 | } |
| 958 | |
Hariprasad Dhalinarasimha | 682d1c3 | 2013-05-19 21:22:10 -0700 | [diff] [blame] | 959 | msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle, |
| 960 | data->client.sb_virt, data->client.sb_length, |
| 961 | ION_IOC_CLEAN_INV_CACHES); |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 962 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, (const void *) &send_svc_ireq, |
| 963 | sizeof(send_svc_ireq), |
| 964 | &resp, sizeof(resp)); |
Hariprasad Dhalinarasimha | 682d1c3 | 2013-05-19 21:22:10 -0700 | [diff] [blame] | 965 | msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle, |
| 966 | data->client.sb_virt, data->client.sb_length, |
| 967 | ION_IOC_INV_CACHES); |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 968 | if (ret) { |
| 969 | pr_err("qseecom_scm_call failed with err: %d\n", ret); |
AnilKumar Chimata | 80f1d1b | 2013-08-03 05:16:14 +0530 | [diff] [blame] | 970 | goto exit_reset_sdfab_freq; |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 971 | } |
| 972 | |
| 973 | switch (resp.result) { |
| 974 | case QSEOS_RESULT_SUCCESS: |
| 975 | break; |
| 976 | case QSEOS_RESULT_INCOMPLETE: |
| 977 | pr_err("qseos_result_incomplete\n"); |
| 978 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 979 | if (ret) { |
| 980 | pr_err("process_incomplete_cmd fail: err: %d\n", |
| 981 | ret); |
| 982 | } |
| 983 | break; |
| 984 | case QSEOS_RESULT_FAILURE: |
| 985 | pr_err("process_incomplete_cmd failed err: %d\n", ret); |
| 986 | break; |
| 987 | default: |
| 988 | pr_err("Response result %d not supported\n", |
| 989 | resp.result); |
| 990 | ret = -EINVAL; |
| 991 | break; |
| 992 | } |
AnilKumar Chimata | 80f1d1b | 2013-08-03 05:16:14 +0530 | [diff] [blame] | 993 | exit_reset_sdfab_freq: |
| 994 | qsee_disable_clock_vote(data, CLK_SFPB); |
| 995 | exit_reset_dfab_freq: |
| 996 | qsee_disable_clock_vote(data, CLK_DFAB); |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 997 | return ret; |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 998 | } |
| 999 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1000 | static int __qseecom_send_cmd(struct qseecom_dev_handle *data, |
| 1001 | struct qseecom_send_cmd_req *req) |
| 1002 | { |
| 1003 | int ret = 0; |
| 1004 | u32 reqd_len_sb_in = 0; |
| 1005 | struct qseecom_client_send_data_ireq send_data_req; |
| 1006 | struct qseecom_command_scm_resp resp; |
| 1007 | |
| 1008 | if (req->cmd_req_buf == NULL || req->resp_buf == NULL) { |
| 1009 | pr_err("cmd buffer or response buffer is null\n"); |
| 1010 | return -EINVAL; |
| 1011 | } |
Mona Hossain | dddf444 | 2013-10-01 14:08:20 -0700 | [diff] [blame] | 1012 | if (((uint32_t)req->cmd_req_buf < data->client.user_virt_sb_base) || |
| 1013 | ((uint32_t)req->cmd_req_buf >= (data->client.user_virt_sb_base + |
| 1014 | data->client.sb_length))) { |
| 1015 | pr_err("cmd buffer address not within shared bufffer\n"); |
| 1016 | return -EINVAL; |
| 1017 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1018 | |
Mona Hossain | dddf444 | 2013-10-01 14:08:20 -0700 | [diff] [blame] | 1019 | |
| 1020 | if (((uint32_t)req->resp_buf < data->client.user_virt_sb_base) || |
| 1021 | ((uint32_t)req->resp_buf >= (data->client.user_virt_sb_base + |
| 1022 | data->client.sb_length))){ |
| 1023 | pr_err("response buffer address not within shared bufffer\n"); |
| 1024 | return -EINVAL; |
| 1025 | } |
| 1026 | |
| 1027 | if ((req->cmd_req_len == 0) || (req->resp_len == 0) || |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1028 | req->cmd_req_len > data->client.sb_length || |
| 1029 | req->resp_len > data->client.sb_length) { |
| 1030 | pr_err("cmd buffer length or " |
| 1031 | "response buffer length not valid\n"); |
| 1032 | return -EINVAL; |
| 1033 | } |
| 1034 | |
Hariprasad Dhalinarasimha | 528400a | 2013-10-03 16:43:39 -0700 | [diff] [blame] | 1035 | if (req->cmd_req_len > UINT_MAX - req->resp_len) { |
| 1036 | pr_err("Integer overflow detected in req_len & rsp_len, exiting now\n"); |
| 1037 | return -EINVAL; |
| 1038 | } |
| 1039 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1040 | reqd_len_sb_in = req->cmd_req_len + req->resp_len; |
| 1041 | if (reqd_len_sb_in > data->client.sb_length) { |
| 1042 | pr_debug("Not enough memory to fit cmd_buf and " |
| 1043 | "resp_buf. Required: %u, Available: %u\n", |
| 1044 | reqd_len_sb_in, data->client.sb_length); |
| 1045 | return -ENOMEM; |
| 1046 | } |
| 1047 | |
| 1048 | send_data_req.qsee_cmd_id = QSEOS_CLIENT_SEND_DATA_COMMAND; |
| 1049 | send_data_req.app_id = data->client.app_id; |
| 1050 | send_data_req.req_ptr = (void *)(__qseecom_uvirt_to_kphys(data, |
| 1051 | (uint32_t)req->cmd_req_buf)); |
| 1052 | send_data_req.req_len = req->cmd_req_len; |
| 1053 | send_data_req.rsp_ptr = (void *)(__qseecom_uvirt_to_kphys(data, |
| 1054 | (uint32_t)req->resp_buf)); |
| 1055 | send_data_req.rsp_len = req->resp_len; |
| 1056 | |
Hariprasad Dhalinarasimha | 682d1c3 | 2013-05-19 21:22:10 -0700 | [diff] [blame] | 1057 | msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle, |
| 1058 | data->client.sb_virt, |
Hariprasad Dhalinarasimha | 528400a | 2013-10-03 16:43:39 -0700 | [diff] [blame] | 1059 | reqd_len_sb_in, |
Hariprasad Dhalinarasimha | 682d1c3 | 2013-05-19 21:22:10 -0700 | [diff] [blame] | 1060 | ION_IOC_CLEAN_INV_CACHES); |
| 1061 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1062 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, (const void *) &send_data_req, |
| 1063 | sizeof(send_data_req), |
| 1064 | &resp, sizeof(resp)); |
| 1065 | if (ret) { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 1066 | pr_err("scm_call() failed with err: %d (app_id = %d)\n", |
| 1067 | ret, data->client.app_id); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1068 | return ret; |
| 1069 | } |
| 1070 | |
| 1071 | if (resp.result == QSEOS_RESULT_INCOMPLETE) { |
| 1072 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 1073 | if (ret) { |
| 1074 | pr_err("process_incomplete_cmd failed err: %d\n", ret); |
| 1075 | return ret; |
| 1076 | } |
Mona Hossain | bb0bca1 | 2012-04-12 11:47:45 -0700 | [diff] [blame] | 1077 | } else { |
| 1078 | if (resp.result != QSEOS_RESULT_SUCCESS) { |
| 1079 | pr_err("Response result %d not supported\n", |
| 1080 | resp.result); |
| 1081 | ret = -EINVAL; |
| 1082 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1083 | } |
Hariprasad Dhalinarasimha | 682d1c3 | 2013-05-19 21:22:10 -0700 | [diff] [blame] | 1084 | msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle, |
| 1085 | data->client.sb_virt, data->client.sb_length, |
| 1086 | ION_IOC_INV_CACHES); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1087 | return ret; |
| 1088 | } |
| 1089 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1090 | static int qseecom_send_cmd(struct qseecom_dev_handle *data, void __user *argp) |
| 1091 | { |
| 1092 | int ret = 0; |
| 1093 | struct qseecom_send_cmd_req req; |
| 1094 | |
| 1095 | ret = copy_from_user(&req, argp, sizeof(req)); |
| 1096 | if (ret) { |
| 1097 | pr_err("copy_from_user failed\n"); |
| 1098 | return ret; |
| 1099 | } |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 1100 | ret = __qseecom_send_cmd(data, &req); |
| 1101 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1102 | if (ret) |
| 1103 | return ret; |
| 1104 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1105 | return ret; |
| 1106 | } |
| 1107 | |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 1108 | static int qseecom_unprotect_buffer(void __user *argp) |
| 1109 | { |
| 1110 | int ret = 0; |
| 1111 | struct ion_handle *ihandle; |
| 1112 | int32_t ion_fd; |
| 1113 | |
| 1114 | ret = copy_from_user(&ion_fd, argp, sizeof(ion_fd)); |
| 1115 | if (ret) { |
| 1116 | pr_err("copy_from_user failed"); |
| 1117 | return ret; |
| 1118 | } |
| 1119 | |
| 1120 | ihandle = ion_import_dma_buf(qseecom.ion_clnt, ion_fd); |
| 1121 | |
| 1122 | ret = msm_ion_unsecure_buffer(qseecom.ion_clnt, ihandle); |
| 1123 | if (ret) |
| 1124 | return -EINVAL; |
| 1125 | return 0; |
| 1126 | } |
| 1127 | |
| 1128 | static int __qseecom_update_cmd_buf(void *msg, bool cleanup, |
| 1129 | struct qseecom_dev_handle *data, |
| 1130 | bool listener_svc) |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1131 | { |
| 1132 | struct ion_handle *ihandle; |
| 1133 | char *field; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1134 | int ret = 0; |
| 1135 | int i = 0; |
Hariprasad Dhalinarasimha | 682d1c3 | 2013-05-19 21:22:10 -0700 | [diff] [blame] | 1136 | uint32_t len = 0; |
| 1137 | struct scatterlist *sg; |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 1138 | struct qseecom_send_modfd_cmd_req *cmd_req = NULL; |
| 1139 | struct qseecom_send_modfd_listener_resp *lstnr_resp = NULL; |
| 1140 | struct qseecom_registered_listener_list *this_lstnr = NULL; |
| 1141 | |
| 1142 | if (msg == NULL) { |
| 1143 | pr_err("Invalid address\n"); |
| 1144 | return -EINVAL; |
| 1145 | } |
| 1146 | if (listener_svc) { |
| 1147 | lstnr_resp = (struct qseecom_send_modfd_listener_resp *)msg; |
| 1148 | this_lstnr = __qseecom_find_svc(data->listener.id); |
| 1149 | if (IS_ERR_OR_NULL(this_lstnr)) { |
| 1150 | pr_err("Invalid listener ID\n"); |
| 1151 | return -ENOMEM; |
| 1152 | } |
| 1153 | } else { |
| 1154 | cmd_req = (struct qseecom_send_modfd_cmd_req *)msg; |
| 1155 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1156 | |
| 1157 | for (i = 0; i < MAX_ION_FD; i++) { |
Mona Hossain | f1f2ed6 | 2012-11-15 19:51:33 -0800 | [diff] [blame] | 1158 | struct sg_table *sg_ptr = NULL; |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 1159 | if ((!listener_svc) && (cmd_req->ifd_data[i].fd > 0)) { |
Laura Abbott | b14ed96 | 2012-01-30 14:18:08 -0800 | [diff] [blame] | 1160 | ihandle = ion_import_dma_buf(qseecom.ion_clnt, |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 1161 | cmd_req->ifd_data[i].fd); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1162 | if (IS_ERR_OR_NULL(ihandle)) { |
| 1163 | pr_err("Ion client can't retrieve the handle\n"); |
| 1164 | return -ENOMEM; |
| 1165 | } |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 1166 | field = (char *) cmd_req->cmd_req_buf + |
| 1167 | cmd_req->ifd_data[i].cmd_buf_offset; |
| 1168 | } else if ((listener_svc) && |
| 1169 | (lstnr_resp->ifd_data[i].fd > 0)) { |
| 1170 | ihandle = ion_import_dma_buf(qseecom.ion_clnt, |
| 1171 | lstnr_resp->ifd_data[i].fd); |
| 1172 | if (IS_ERR_OR_NULL(ihandle)) { |
| 1173 | pr_err("Ion client can't retrieve the handle\n"); |
| 1174 | return -ENOMEM; |
Mona Hossain | f1f2ed6 | 2012-11-15 19:51:33 -0800 | [diff] [blame] | 1175 | } |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 1176 | switch (lstnr_resp->protection_mode) { |
| 1177 | case QSEOS_PROTECT_BUFFER: |
| 1178 | ret = msm_ion_secure_buffer(qseecom.ion_clnt, |
| 1179 | ihandle, |
| 1180 | VIDEO_PIXEL, |
| 1181 | 0); |
| 1182 | break; |
| 1183 | case QSEOS_UNPROTECT_PROTECTED_BUFFER: |
| 1184 | ret = msm_ion_unsecure_buffer(qseecom.ion_clnt, |
| 1185 | ihandle); |
| 1186 | break; |
| 1187 | case QSEOS_UNPROTECTED_BUFFER: |
| 1188 | default: |
| 1189 | break; |
Mona Hossain | f1f2ed6 | 2012-11-15 19:51:33 -0800 | [diff] [blame] | 1190 | } |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 1191 | field = lstnr_resp->resp_buf_ptr + |
| 1192 | lstnr_resp->ifd_data[i].cmd_buf_offset; |
| 1193 | } else { |
| 1194 | return ret; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1195 | } |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 1196 | /* Populate the cmd data structure with the phys_addr */ |
| 1197 | sg_ptr = ion_sg_table(qseecom.ion_clnt, ihandle); |
| 1198 | if (sg_ptr == NULL) { |
| 1199 | pr_err("IOn client could not retrieve sg table\n"); |
| 1200 | goto err; |
| 1201 | } |
| 1202 | if (sg_ptr->nents == 0) { |
| 1203 | pr_err("Num of scattered entries is 0\n"); |
| 1204 | goto err; |
| 1205 | } |
| 1206 | if (sg_ptr->nents > QSEECOM_MAX_SG_ENTRY) { |
| 1207 | pr_err("Num of scattered entries"); |
| 1208 | pr_err(" (%d) is greater than max supported %d\n", |
| 1209 | sg_ptr->nents, QSEECOM_MAX_SG_ENTRY); |
| 1210 | goto err; |
| 1211 | } |
| 1212 | sg = sg_ptr->sgl; |
| 1213 | if (sg_ptr->nents == 1) { |
| 1214 | uint32_t *update; |
| 1215 | update = (uint32_t *) field; |
| 1216 | if (cleanup) |
| 1217 | *update = 0; |
| 1218 | else |
| 1219 | *update = (uint32_t)sg_dma_address( |
| 1220 | sg_ptr->sgl); |
| 1221 | len += (uint32_t)sg->length; |
| 1222 | } else { |
| 1223 | struct qseecom_sg_entry *update; |
| 1224 | int j = 0; |
| 1225 | update = (struct qseecom_sg_entry *) field; |
| 1226 | for (j = 0; j < sg_ptr->nents; j++) { |
| 1227 | if (cleanup) { |
| 1228 | update->phys_addr = 0; |
| 1229 | update->len = 0; |
| 1230 | } else { |
| 1231 | update->phys_addr = (uint32_t) |
| 1232 | sg_dma_address(sg); |
| 1233 | update->len = sg->length; |
| 1234 | } |
| 1235 | len += sg->length; |
| 1236 | update++; |
| 1237 | sg = sg_next(sg); |
| 1238 | } |
| 1239 | } |
| 1240 | if (cleanup) |
| 1241 | msm_ion_do_cache_op(qseecom.ion_clnt, |
| 1242 | ihandle, NULL, len, |
| 1243 | ION_IOC_INV_CACHES); |
| 1244 | else |
| 1245 | msm_ion_do_cache_op(qseecom.ion_clnt, |
| 1246 | ihandle, NULL, len, |
| 1247 | ION_IOC_CLEAN_INV_CACHES); |
| 1248 | /* Deallocate the handle */ |
| 1249 | if (!IS_ERR_OR_NULL(ihandle)) |
| 1250 | ion_free(qseecom.ion_clnt, ihandle); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1251 | } |
| 1252 | return ret; |
Mona Hossain | f1f2ed6 | 2012-11-15 19:51:33 -0800 | [diff] [blame] | 1253 | err: |
| 1254 | if (!IS_ERR_OR_NULL(ihandle)) |
| 1255 | ion_free(qseecom.ion_clnt, ihandle); |
| 1256 | return -ENOMEM; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1257 | } |
| 1258 | |
| 1259 | static int qseecom_send_modfd_cmd(struct qseecom_dev_handle *data, |
| 1260 | void __user *argp) |
| 1261 | { |
| 1262 | int ret = 0; |
Mona Hossain | dddf444 | 2013-10-01 14:08:20 -0700 | [diff] [blame] | 1263 | int i; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1264 | struct qseecom_send_modfd_cmd_req req; |
| 1265 | struct qseecom_send_cmd_req send_cmd_req; |
| 1266 | |
| 1267 | ret = copy_from_user(&req, argp, sizeof(req)); |
| 1268 | if (ret) { |
| 1269 | pr_err("copy_from_user failed\n"); |
| 1270 | return ret; |
| 1271 | } |
| 1272 | send_cmd_req.cmd_req_buf = req.cmd_req_buf; |
| 1273 | send_cmd_req.cmd_req_len = req.cmd_req_len; |
| 1274 | send_cmd_req.resp_buf = req.resp_buf; |
| 1275 | send_cmd_req.resp_len = req.resp_len; |
| 1276 | |
Mona Hossain | dddf444 | 2013-10-01 14:08:20 -0700 | [diff] [blame] | 1277 | /* validate offsets */ |
| 1278 | for (i = 0; i < MAX_ION_FD; i++) { |
| 1279 | if (req.ifd_data[i].cmd_buf_offset >= req.cmd_req_len) { |
| 1280 | pr_err("Invalid offset %d = 0x%x\n", |
| 1281 | i, req.ifd_data[i].cmd_buf_offset); |
| 1282 | return -EINVAL; |
| 1283 | } |
| 1284 | } |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 1285 | ret = __qseecom_update_cmd_buf(&req, false, data, false); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1286 | if (ret) |
| 1287 | return ret; |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 1288 | ret = __qseecom_send_cmd(data, &send_cmd_req); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1289 | if (ret) |
| 1290 | return ret; |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 1291 | ret = __qseecom_update_cmd_buf(&req, true, data, false); |
Mona Hossain | c56584d | 2013-05-28 09:06:26 -0700 | [diff] [blame] | 1292 | if (ret) |
| 1293 | return ret; |
Zhen Kong | 04f65b8 | 2013-10-03 13:58:45 -0700 | [diff] [blame] | 1294 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1295 | return ret; |
| 1296 | } |
| 1297 | |
| 1298 | static int __qseecom_listener_has_rcvd_req(struct qseecom_dev_handle *data, |
| 1299 | struct qseecom_registered_listener_list *svc) |
| 1300 | { |
| 1301 | int ret; |
| 1302 | ret = (svc->rcv_req_flag != 0); |
| 1303 | return ret || data->abort; |
| 1304 | } |
| 1305 | |
| 1306 | static int qseecom_receive_req(struct qseecom_dev_handle *data) |
| 1307 | { |
| 1308 | int ret = 0; |
| 1309 | struct qseecom_registered_listener_list *this_lstnr; |
| 1310 | |
| 1311 | this_lstnr = __qseecom_find_svc(data->listener.id); |
AnilKumar Chimata | 69b857a | 2013-07-23 23:03:26 +0530 | [diff] [blame] | 1312 | if (!this_lstnr) { |
| 1313 | pr_err("Invalid listener ID\n"); |
| 1314 | return -ENODATA; |
| 1315 | } |
| 1316 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1317 | while (1) { |
Mona Hossain | acea102 | 2012-04-09 13:37:27 -0700 | [diff] [blame] | 1318 | if (wait_event_freezable(this_lstnr->rcv_req_wq, |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1319 | __qseecom_listener_has_rcvd_req(data, |
| 1320 | this_lstnr))) { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 1321 | pr_warning("Interrupted: exiting Listener Service = %d\n", |
| 1322 | (uint32_t)data->listener.id); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1323 | /* woken up for different reason */ |
| 1324 | return -ERESTARTSYS; |
| 1325 | } |
| 1326 | |
| 1327 | if (data->abort) { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 1328 | pr_err("Aborting Listener Service = %d\n", |
| 1329 | (uint32_t)data->listener.id); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1330 | return -ENODEV; |
| 1331 | } |
| 1332 | this_lstnr->rcv_req_flag = 0; |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 1333 | break; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1334 | } |
| 1335 | return ret; |
| 1336 | } |
| 1337 | |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1338 | static bool __qseecom_is_fw_image_valid(const struct firmware *fw_entry) |
| 1339 | { |
| 1340 | struct elf32_hdr *ehdr; |
| 1341 | |
| 1342 | if (fw_entry->size < sizeof(*ehdr)) { |
| 1343 | pr_err("%s: Not big enough to be an elf header\n", |
| 1344 | qseecom.pdev->init_name); |
| 1345 | return false; |
| 1346 | } |
| 1347 | ehdr = (struct elf32_hdr *)fw_entry->data; |
| 1348 | if (memcmp(ehdr->e_ident, ELFMAG, SELFMAG)) { |
| 1349 | pr_err("%s: Not an elf header\n", |
| 1350 | qseecom.pdev->init_name); |
| 1351 | return false; |
| 1352 | } |
| 1353 | |
| 1354 | if (ehdr->e_phnum == 0) { |
| 1355 | pr_err("%s: No loadable segments\n", |
| 1356 | qseecom.pdev->init_name); |
| 1357 | return false; |
| 1358 | } |
| 1359 | if (sizeof(struct elf32_phdr) * ehdr->e_phnum + |
| 1360 | sizeof(struct elf32_hdr) > fw_entry->size) { |
| 1361 | pr_err("%s: Program headers not within mdt\n", |
| 1362 | qseecom.pdev->init_name); |
| 1363 | return false; |
| 1364 | } |
| 1365 | return true; |
| 1366 | } |
| 1367 | |
| 1368 | static int __qseecom_get_fw_size(char *appname, uint32_t *fw_size) |
| 1369 | { |
| 1370 | int ret = -1; |
| 1371 | int i = 0, rc = 0; |
| 1372 | const struct firmware *fw_entry = NULL; |
| 1373 | struct elf32_phdr *phdr; |
| 1374 | char fw_name[MAX_APP_NAME_SIZE]; |
| 1375 | struct elf32_hdr *ehdr; |
| 1376 | int num_images = 0; |
| 1377 | |
| 1378 | snprintf(fw_name, sizeof(fw_name), "%s.mdt", appname); |
| 1379 | rc = request_firmware(&fw_entry, fw_name, qseecom.pdev); |
| 1380 | if (rc) { |
| 1381 | pr_err("error with request_firmware\n"); |
| 1382 | ret = -EIO; |
| 1383 | goto err; |
| 1384 | } |
| 1385 | if (!__qseecom_is_fw_image_valid(fw_entry)) { |
| 1386 | ret = -EIO; |
| 1387 | goto err; |
| 1388 | } |
| 1389 | *fw_size = fw_entry->size; |
| 1390 | phdr = (struct elf32_phdr *)(fw_entry->data + sizeof(struct elf32_hdr)); |
| 1391 | ehdr = (struct elf32_hdr *)fw_entry->data; |
| 1392 | num_images = ehdr->e_phnum; |
| 1393 | release_firmware(fw_entry); |
| 1394 | for (i = 0; i < num_images; i++, phdr++) { |
| 1395 | memset(fw_name, 0, sizeof(fw_name)); |
| 1396 | snprintf(fw_name, ARRAY_SIZE(fw_name), "%s.b%02d", appname, i); |
| 1397 | ret = request_firmware(&fw_entry, fw_name, qseecom.pdev); |
| 1398 | if (ret) |
| 1399 | goto err; |
| 1400 | *fw_size += fw_entry->size; |
| 1401 | release_firmware(fw_entry); |
| 1402 | } |
| 1403 | return ret; |
| 1404 | err: |
| 1405 | if (fw_entry) |
| 1406 | release_firmware(fw_entry); |
| 1407 | *fw_size = 0; |
| 1408 | return ret; |
| 1409 | } |
| 1410 | |
| 1411 | static int __qseecom_get_fw_data(char *appname, u8 *img_data, |
| 1412 | struct qseecom_load_app_ireq *load_req) |
| 1413 | { |
| 1414 | int ret = -1; |
| 1415 | int i = 0, rc = 0; |
| 1416 | const struct firmware *fw_entry = NULL; |
| 1417 | char fw_name[MAX_APP_NAME_SIZE]; |
| 1418 | u8 *img_data_ptr = img_data; |
| 1419 | struct elf32_hdr *ehdr; |
| 1420 | int num_images = 0; |
| 1421 | |
| 1422 | snprintf(fw_name, sizeof(fw_name), "%s.mdt", appname); |
| 1423 | rc = request_firmware(&fw_entry, fw_name, qseecom.pdev); |
| 1424 | if (rc) { |
| 1425 | ret = -EIO; |
| 1426 | goto err; |
| 1427 | } |
| 1428 | load_req->img_len = fw_entry->size; |
| 1429 | memcpy(img_data_ptr, fw_entry->data, fw_entry->size); |
| 1430 | img_data_ptr = img_data_ptr + fw_entry->size; |
| 1431 | load_req->mdt_len = fw_entry->size; /*Get MDT LEN*/ |
| 1432 | ehdr = (struct elf32_hdr *)fw_entry->data; |
| 1433 | num_images = ehdr->e_phnum; |
| 1434 | release_firmware(fw_entry); |
| 1435 | for (i = 0; i < num_images; i++) { |
| 1436 | snprintf(fw_name, ARRAY_SIZE(fw_name), "%s.b%02d", appname, i); |
| 1437 | ret = request_firmware(&fw_entry, fw_name, qseecom.pdev); |
| 1438 | if (ret) { |
| 1439 | pr_err("Failed to locate blob %s\n", fw_name); |
| 1440 | goto err; |
| 1441 | } |
| 1442 | memcpy(img_data_ptr, fw_entry->data, fw_entry->size); |
| 1443 | img_data_ptr = img_data_ptr + fw_entry->size; |
| 1444 | load_req->img_len += fw_entry->size; |
| 1445 | release_firmware(fw_entry); |
| 1446 | } |
| 1447 | load_req->phy_addr = virt_to_phys(img_data); |
| 1448 | return ret; |
| 1449 | err: |
| 1450 | release_firmware(fw_entry); |
| 1451 | return ret; |
| 1452 | } |
| 1453 | |
| 1454 | static int __qseecom_load_fw(struct qseecom_dev_handle *data, char *appname) |
| 1455 | { |
| 1456 | int ret = -1; |
| 1457 | uint32_t fw_size = 0; |
| 1458 | struct qseecom_load_app_ireq load_req = {0, 0, 0, 0}; |
| 1459 | struct qseecom_command_scm_resp resp; |
| 1460 | u8 *img_data = NULL; |
| 1461 | |
| 1462 | if (__qseecom_get_fw_size(appname, &fw_size)) |
| 1463 | return -EIO; |
| 1464 | |
| 1465 | img_data = kzalloc(fw_size, GFP_KERNEL); |
| 1466 | if (!img_data) { |
| 1467 | pr_err("Failied to allocate memory for copying image data\n"); |
| 1468 | return -ENOMEM; |
| 1469 | } |
| 1470 | ret = __qseecom_get_fw_data(appname, img_data, &load_req); |
| 1471 | if (ret) { |
| 1472 | kzfree(img_data); |
| 1473 | return -EIO; |
| 1474 | } |
| 1475 | |
| 1476 | /* Populate the remaining parameters */ |
| 1477 | load_req.qsee_cmd_id = QSEOS_APP_START_COMMAND; |
| 1478 | memcpy(load_req.app_name, appname, MAX_APP_NAME_SIZE); |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 1479 | ret = qsee_vote_for_clock(data, CLK_SFPB); |
Mona Hossain | 60f9fb0 | 2012-11-05 13:51:50 -0800 | [diff] [blame] | 1480 | if (ret) { |
| 1481 | kzfree(img_data); |
| 1482 | pr_warning("Unable to vote for SFPB clock"); |
Mona Hossain | 60f9fb0 | 2012-11-05 13:51:50 -0800 | [diff] [blame] | 1483 | return -EIO; |
| 1484 | } |
| 1485 | |
Hariprasad Dhalinarasimha | 682d1c3 | 2013-05-19 21:22:10 -0700 | [diff] [blame] | 1486 | __cpuc_flush_dcache_area((void *)img_data, fw_size); |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1487 | /* SCM_CALL to load the image */ |
| 1488 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, &load_req, |
| 1489 | sizeof(struct qseecom_load_app_ireq), |
| 1490 | &resp, sizeof(resp)); |
| 1491 | kzfree(img_data); |
| 1492 | if (ret) { |
| 1493 | pr_err("scm_call to load failed : ret %d\n", ret); |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 1494 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1495 | return -EIO; |
| 1496 | } |
| 1497 | |
| 1498 | switch (resp.result) { |
| 1499 | case QSEOS_RESULT_SUCCESS: |
| 1500 | ret = resp.data; |
| 1501 | break; |
| 1502 | case QSEOS_RESULT_INCOMPLETE: |
| 1503 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 1504 | if (ret) |
| 1505 | pr_err("process_incomplete_cmd FAILED\n"); |
| 1506 | else |
| 1507 | ret = resp.data; |
| 1508 | break; |
| 1509 | case QSEOS_RESULT_FAILURE: |
| 1510 | pr_err("scm call failed with response QSEOS_RESULT FAILURE\n"); |
| 1511 | break; |
| 1512 | default: |
| 1513 | pr_err("scm call return unknown response %d\n", resp.result); |
| 1514 | ret = -EINVAL; |
| 1515 | break; |
| 1516 | } |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 1517 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | 60f9fb0 | 2012-11-05 13:51:50 -0800 | [diff] [blame] | 1518 | |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1519 | return ret; |
| 1520 | } |
| 1521 | |
Mona Hossain | 9498f5e | 2013-01-23 18:08:45 -0800 | [diff] [blame] | 1522 | static int qseecom_load_commonlib_image(struct qseecom_dev_handle *data) |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 1523 | { |
| 1524 | int32_t ret = 0; |
| 1525 | uint32_t fw_size = 0; |
| 1526 | struct qseecom_load_app_ireq load_req = {0, 0, 0, 0}; |
| 1527 | struct qseecom_command_scm_resp resp; |
| 1528 | u8 *img_data = NULL; |
| 1529 | |
Hariprasad Dhalinarasimha | a3b9644 | 2013-01-02 10:40:40 -0800 | [diff] [blame] | 1530 | if (__qseecom_get_fw_size("cmnlib", &fw_size)) |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 1531 | return -EIO; |
| 1532 | |
| 1533 | img_data = kzalloc(fw_size, GFP_KERNEL); |
| 1534 | if (!img_data) { |
| 1535 | pr_err("Mem allocation for lib image data failed\n"); |
| 1536 | return -ENOMEM; |
| 1537 | } |
Hariprasad Dhalinarasimha | a3b9644 | 2013-01-02 10:40:40 -0800 | [diff] [blame] | 1538 | ret = __qseecom_get_fw_data("cmnlib", img_data, &load_req); |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 1539 | if (ret) { |
| 1540 | kzfree(img_data); |
| 1541 | return -EIO; |
| 1542 | } |
| 1543 | /* Populate the remaining parameters */ |
| 1544 | load_req.qsee_cmd_id = QSEOS_LOAD_SERV_IMAGE_COMMAND; |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 1545 | /* Vote for the SFPB clock */ |
| 1546 | ret = qsee_vote_for_clock(data, CLK_SFPB); |
| 1547 | if (ret) { |
| 1548 | pr_err("Unable to vote for SFPB clock: ret = %d", ret); |
| 1549 | kzfree(img_data); |
| 1550 | return -EIO; |
| 1551 | } |
| 1552 | |
Hariprasad Dhalinarasimha | 682d1c3 | 2013-05-19 21:22:10 -0700 | [diff] [blame] | 1553 | __cpuc_flush_dcache_area((void *)img_data, fw_size); |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 1554 | /* SCM_CALL to load the image */ |
| 1555 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, &load_req, |
| 1556 | sizeof(struct qseecom_load_lib_image_ireq), |
| 1557 | &resp, sizeof(resp)); |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 1558 | if (ret) { |
| 1559 | pr_err("scm_call to load failed : ret %d\n", ret); |
| 1560 | ret = -EIO; |
| 1561 | } else { |
| 1562 | switch (resp.result) { |
| 1563 | case QSEOS_RESULT_SUCCESS: |
| 1564 | break; |
| 1565 | case QSEOS_RESULT_FAILURE: |
| 1566 | pr_err("scm call failed w/response result%d\n", |
| 1567 | resp.result); |
| 1568 | ret = -EINVAL; |
| 1569 | break; |
Mona Hossain | 9498f5e | 2013-01-23 18:08:45 -0800 | [diff] [blame] | 1570 | case QSEOS_RESULT_INCOMPLETE: |
| 1571 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 1572 | if (ret) |
| 1573 | pr_err("process_incomplete_cmd failed err: %d\n", |
| 1574 | ret); |
| 1575 | break; |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 1576 | default: |
| 1577 | pr_err("scm call return unknown response %d\n", |
| 1578 | resp.result); |
| 1579 | ret = -EINVAL; |
| 1580 | break; |
| 1581 | } |
| 1582 | } |
Hariprasad Dhalinarasimha | 1a81ca3 | 2013-01-31 18:32:32 -0800 | [diff] [blame] | 1583 | kzfree(img_data); |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 1584 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 1585 | return ret; |
| 1586 | } |
| 1587 | |
| 1588 | static int qseecom_unload_commonlib_image(void) |
| 1589 | { |
| 1590 | int ret = -EINVAL; |
| 1591 | struct qseecom_unload_lib_image_ireq unload_req = {0}; |
| 1592 | struct qseecom_command_scm_resp resp; |
| 1593 | |
| 1594 | /* Populate the remaining parameters */ |
| 1595 | unload_req.qsee_cmd_id = QSEOS_UNLOAD_SERV_IMAGE_COMMAND; |
| 1596 | /* SCM_CALL to load the image */ |
| 1597 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, &unload_req, |
| 1598 | sizeof(struct qseecom_unload_lib_image_ireq), |
| 1599 | &resp, sizeof(resp)); |
| 1600 | if (ret) { |
| 1601 | pr_err("scm_call to unload lib failed : ret %d\n", ret); |
| 1602 | ret = -EIO; |
| 1603 | } else { |
| 1604 | switch (resp.result) { |
| 1605 | case QSEOS_RESULT_SUCCESS: |
| 1606 | break; |
| 1607 | case QSEOS_RESULT_FAILURE: |
| 1608 | pr_err("scm fail resp.result QSEOS_RESULT FAILURE\n"); |
| 1609 | break; |
| 1610 | default: |
| 1611 | pr_err("scm call return unknown response %d\n", |
| 1612 | resp.result); |
| 1613 | ret = -EINVAL; |
| 1614 | break; |
| 1615 | } |
| 1616 | } |
| 1617 | return ret; |
| 1618 | } |
| 1619 | |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1620 | int qseecom_start_app(struct qseecom_handle **handle, |
| 1621 | char *app_name, uint32_t size) |
| 1622 | { |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 1623 | int32_t ret = 0; |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1624 | unsigned long flags = 0; |
| 1625 | struct qseecom_dev_handle *data = NULL; |
| 1626 | struct qseecom_check_app_ireq app_ireq; |
| 1627 | struct qseecom_registered_app_list *entry = NULL; |
| 1628 | struct qseecom_registered_kclient_list *kclient_entry = NULL; |
| 1629 | bool found_app = false; |
| 1630 | uint32_t len; |
| 1631 | ion_phys_addr_t pa; |
| 1632 | |
Mona Hossain | 823f988 | 2012-11-23 14:42:20 -0800 | [diff] [blame] | 1633 | *handle = kzalloc(sizeof(struct qseecom_handle), GFP_KERNEL); |
| 1634 | if (!(*handle)) { |
| 1635 | pr_err("failed to allocate memory for kernel client handle\n"); |
| 1636 | return -ENOMEM; |
| 1637 | } |
| 1638 | |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1639 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
| 1640 | if (!data) { |
| 1641 | pr_err("kmalloc failed\n"); |
| 1642 | if (ret == 0) { |
| 1643 | kfree(*handle); |
| 1644 | *handle = NULL; |
| 1645 | } |
| 1646 | return -ENOMEM; |
| 1647 | } |
| 1648 | data->abort = 0; |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 1649 | data->type = QSEECOM_CLIENT_APP; |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1650 | data->released = false; |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1651 | data->client.sb_length = size; |
| 1652 | data->client.user_virt_sb_base = 0; |
| 1653 | data->client.ihandle = NULL; |
| 1654 | |
| 1655 | init_waitqueue_head(&data->abort_wq); |
| 1656 | atomic_set(&data->ioctl_count, 0); |
| 1657 | |
| 1658 | data->client.ihandle = ion_alloc(qseecom.ion_clnt, size, 4096, |
| 1659 | ION_HEAP(ION_QSECOM_HEAP_ID), 0); |
| 1660 | if (IS_ERR_OR_NULL(data->client.ihandle)) { |
| 1661 | pr_err("Ion client could not retrieve the handle\n"); |
| 1662 | kfree(data); |
| 1663 | kfree(*handle); |
| 1664 | *handle = NULL; |
| 1665 | return -EINVAL; |
| 1666 | } |
Mona Hossain | b2dc0f8 | 2013-05-22 09:26:50 -0700 | [diff] [blame] | 1667 | mutex_lock(&app_access_lock); |
Mona Hossain | 9498f5e | 2013-01-23 18:08:45 -0800 | [diff] [blame] | 1668 | if (qseecom.qsee_version > QSEEE_VERSION_00) { |
Mona Hossain | 9498f5e | 2013-01-23 18:08:45 -0800 | [diff] [blame] | 1669 | if (qseecom.commonlib_loaded == false) { |
| 1670 | ret = qseecom_load_commonlib_image(data); |
| 1671 | if (ret == 0) |
| 1672 | qseecom.commonlib_loaded = true; |
| 1673 | } |
Mona Hossain | 9498f5e | 2013-01-23 18:08:45 -0800 | [diff] [blame] | 1674 | } |
Mona Hossain | 9498f5e | 2013-01-23 18:08:45 -0800 | [diff] [blame] | 1675 | if (ret) { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 1676 | pr_err("Failed to load commonlib image\n"); |
Mona Hossain | b2dc0f8 | 2013-05-22 09:26:50 -0700 | [diff] [blame] | 1677 | ret = -EIO; |
| 1678 | goto err; |
Mona Hossain | 9498f5e | 2013-01-23 18:08:45 -0800 | [diff] [blame] | 1679 | } |
| 1680 | |
| 1681 | app_ireq.qsee_cmd_id = QSEOS_APP_LOOKUP_COMMAND; |
| 1682 | memcpy(app_ireq.app_name, app_name, MAX_APP_NAME_SIZE); |
| 1683 | ret = __qseecom_check_app_exists(app_ireq); |
Mona Hossain | b2dc0f8 | 2013-05-22 09:26:50 -0700 | [diff] [blame] | 1684 | if (ret < 0) |
| 1685 | goto err; |
| 1686 | |
Hariprasad Dhalinarasimha | efecbfd | 2013-04-10 15:13:03 -0700 | [diff] [blame] | 1687 | data->client.app_id = ret; |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1688 | if (ret > 0) { |
| 1689 | pr_warn("App id %d for [%s] app exists\n", ret, |
| 1690 | (char *)app_ireq.app_name); |
| 1691 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 1692 | list_for_each_entry(entry, |
| 1693 | &qseecom.registered_app_list_head, list){ |
| 1694 | if (entry->app_id == ret) { |
| 1695 | entry->ref_cnt++; |
| 1696 | found_app = true; |
| 1697 | break; |
| 1698 | } |
| 1699 | } |
| 1700 | spin_unlock_irqrestore( |
| 1701 | &qseecom.registered_app_list_lock, flags); |
| 1702 | if (!found_app) |
| 1703 | pr_warn("App_id %d [%s] was loaded but not registered\n", |
| 1704 | ret, (char *)app_ireq.app_name); |
| 1705 | } else { |
| 1706 | /* load the app and get the app_id */ |
| 1707 | pr_debug("%s: Loading app for the first time'\n", |
| 1708 | qseecom.pdev->init_name); |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1709 | ret = __qseecom_load_fw(data, app_name); |
Mona Hossain | b2dc0f8 | 2013-05-22 09:26:50 -0700 | [diff] [blame] | 1710 | if (ret < 0) |
| 1711 | goto err; |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1712 | data->client.app_id = ret; |
| 1713 | } |
| 1714 | if (!found_app) { |
| 1715 | entry = kmalloc(sizeof(*entry), GFP_KERNEL); |
| 1716 | if (!entry) { |
Mona Hossain | b2dc0f8 | 2013-05-22 09:26:50 -0700 | [diff] [blame] | 1717 | pr_err("kmalloc for app entry failed\n"); |
| 1718 | ret = -ENOMEM; |
| 1719 | goto err; |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1720 | } |
| 1721 | entry->app_id = ret; |
| 1722 | entry->ref_cnt = 1; |
| 1723 | |
| 1724 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 1725 | list_add_tail(&entry->list, &qseecom.registered_app_list_head); |
| 1726 | spin_unlock_irqrestore(&qseecom.registered_app_list_lock, |
| 1727 | flags); |
| 1728 | } |
| 1729 | |
| 1730 | /* Get the physical address of the ION BUF */ |
| 1731 | ret = ion_phys(qseecom.ion_clnt, data->client.ihandle, &pa, &len); |
| 1732 | /* Populate the structure for sending scm call to load image */ |
| 1733 | data->client.sb_virt = (char *) ion_map_kernel(qseecom.ion_clnt, |
| 1734 | data->client.ihandle); |
Hariprasad Dhalinarasimha | acfb09c | 2013-01-10 13:16:15 -0800 | [diff] [blame] | 1735 | data->client.user_virt_sb_base = (uint32_t)data->client.sb_virt; |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1736 | data->client.sb_phys = pa; |
| 1737 | (*handle)->dev = (void *)data; |
| 1738 | (*handle)->sbuf = (unsigned char *)data->client.sb_virt; |
| 1739 | (*handle)->sbuf_len = data->client.sb_length; |
| 1740 | |
| 1741 | kclient_entry = kzalloc(sizeof(*kclient_entry), GFP_KERNEL); |
| 1742 | if (!kclient_entry) { |
| 1743 | pr_err("kmalloc failed\n"); |
Mona Hossain | b2dc0f8 | 2013-05-22 09:26:50 -0700 | [diff] [blame] | 1744 | ret = -ENOMEM; |
| 1745 | goto err; |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1746 | } |
| 1747 | kclient_entry->handle = *handle; |
| 1748 | |
| 1749 | spin_lock_irqsave(&qseecom.registered_kclient_list_lock, flags); |
| 1750 | list_add_tail(&kclient_entry->list, |
| 1751 | &qseecom.registered_kclient_list_head); |
| 1752 | spin_unlock_irqrestore(&qseecom.registered_kclient_list_lock, flags); |
| 1753 | |
Mona Hossain | b2dc0f8 | 2013-05-22 09:26:50 -0700 | [diff] [blame] | 1754 | mutex_unlock(&app_access_lock); |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1755 | return 0; |
Mona Hossain | b2dc0f8 | 2013-05-22 09:26:50 -0700 | [diff] [blame] | 1756 | |
| 1757 | err: |
| 1758 | kfree(data); |
| 1759 | kfree(*handle); |
| 1760 | *handle = NULL; |
| 1761 | mutex_unlock(&app_access_lock); |
| 1762 | return ret; |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1763 | } |
| 1764 | EXPORT_SYMBOL(qseecom_start_app); |
| 1765 | |
| 1766 | int qseecom_shutdown_app(struct qseecom_handle **handle) |
| 1767 | { |
| 1768 | int ret = -EINVAL; |
Mona Hossain | 3382402 | 2013-02-25 09:32:33 -0800 | [diff] [blame] | 1769 | struct qseecom_dev_handle *data; |
| 1770 | |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1771 | struct qseecom_registered_kclient_list *kclient = NULL; |
| 1772 | unsigned long flags = 0; |
| 1773 | bool found_handle = false; |
| 1774 | |
Mona Hossain | 3382402 | 2013-02-25 09:32:33 -0800 | [diff] [blame] | 1775 | if ((handle == NULL) || (*handle == NULL)) { |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1776 | pr_err("Handle is not initialized\n"); |
| 1777 | return -EINVAL; |
| 1778 | } |
Mona Hossain | 3382402 | 2013-02-25 09:32:33 -0800 | [diff] [blame] | 1779 | data = (struct qseecom_dev_handle *) ((*handle)->dev); |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1780 | spin_lock_irqsave(&qseecom.registered_kclient_list_lock, flags); |
| 1781 | list_for_each_entry(kclient, &qseecom.registered_kclient_list_head, |
| 1782 | list) { |
| 1783 | if (kclient->handle == (*handle)) { |
| 1784 | list_del(&kclient->list); |
| 1785 | found_handle = true; |
| 1786 | break; |
| 1787 | } |
| 1788 | } |
| 1789 | spin_unlock_irqrestore(&qseecom.registered_kclient_list_lock, flags); |
| 1790 | if (!found_handle) |
| 1791 | pr_err("Unable to find the handle, exiting\n"); |
| 1792 | else |
| 1793 | ret = qseecom_unload_app(data); |
Mona Hossain | c9c83c7 | 2013-04-11 12:43:48 -0700 | [diff] [blame] | 1794 | if (data->fast_load_enabled == true) |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 1795 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | c9c83c7 | 2013-04-11 12:43:48 -0700 | [diff] [blame] | 1796 | if (data->perf_enabled == true) |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 1797 | qsee_disable_clock_vote(data, CLK_DFAB); |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1798 | if (ret == 0) { |
| 1799 | kzfree(data); |
| 1800 | kzfree(*handle); |
| 1801 | kzfree(kclient); |
| 1802 | *handle = NULL; |
| 1803 | } |
| 1804 | return ret; |
| 1805 | } |
| 1806 | EXPORT_SYMBOL(qseecom_shutdown_app); |
| 1807 | |
| 1808 | int qseecom_send_command(struct qseecom_handle *handle, void *send_buf, |
| 1809 | uint32_t sbuf_len, void *resp_buf, uint32_t rbuf_len) |
| 1810 | { |
| 1811 | int ret = 0; |
| 1812 | struct qseecom_send_cmd_req req = {0, 0, 0, 0}; |
| 1813 | struct qseecom_dev_handle *data; |
| 1814 | |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 1815 | if (handle == NULL) { |
| 1816 | pr_err("Handle is not initialized\n"); |
| 1817 | return -EINVAL; |
| 1818 | } |
| 1819 | data = handle->dev; |
| 1820 | |
| 1821 | req.cmd_req_len = sbuf_len; |
| 1822 | req.resp_len = rbuf_len; |
| 1823 | req.cmd_req_buf = send_buf; |
| 1824 | req.resp_buf = resp_buf; |
| 1825 | |
| 1826 | mutex_lock(&app_access_lock); |
| 1827 | atomic_inc(&data->ioctl_count); |
| 1828 | |
| 1829 | ret = __qseecom_send_cmd(data, &req); |
| 1830 | |
| 1831 | atomic_dec(&data->ioctl_count); |
| 1832 | mutex_unlock(&app_access_lock); |
| 1833 | |
| 1834 | if (ret) |
| 1835 | return ret; |
| 1836 | |
| 1837 | pr_debug("sending cmd_req->rsp size: %u, ptr: 0x%p\n", |
| 1838 | req.resp_len, req.resp_buf); |
| 1839 | return ret; |
| 1840 | } |
| 1841 | EXPORT_SYMBOL(qseecom_send_command); |
| 1842 | |
Mona Hossain | 91a8fc9 | 2012-11-07 19:58:30 -0800 | [diff] [blame] | 1843 | int qseecom_set_bandwidth(struct qseecom_handle *handle, bool high) |
| 1844 | { |
Mona Hossain | fca6f42 | 2013-01-12 13:00:35 -0800 | [diff] [blame] | 1845 | int ret = 0; |
Mona Hossain | 91a8fc9 | 2012-11-07 19:58:30 -0800 | [diff] [blame] | 1846 | if ((handle == NULL) || (handle->dev == NULL)) { |
| 1847 | pr_err("No valid kernel client\n"); |
| 1848 | return -EINVAL; |
| 1849 | } |
Mona Hossain | fca6f42 | 2013-01-12 13:00:35 -0800 | [diff] [blame] | 1850 | if (high) { |
| 1851 | ret = qsee_vote_for_clock(handle->dev, CLK_DFAB); |
| 1852 | if (ret) |
| 1853 | pr_err("Failed to vote for DFAB clock%d\n", ret); |
| 1854 | ret = qsee_vote_for_clock(handle->dev, CLK_SFPB); |
| 1855 | if (ret) { |
| 1856 | pr_err("Failed to vote for SFPB clock%d\n", ret); |
| 1857 | qsee_disable_clock_vote(handle->dev, CLK_DFAB); |
| 1858 | } |
| 1859 | } else { |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 1860 | qsee_disable_clock_vote(handle->dev, CLK_DFAB); |
Mona Hossain | fca6f42 | 2013-01-12 13:00:35 -0800 | [diff] [blame] | 1861 | qsee_disable_clock_vote(handle->dev, CLK_SFPB); |
Mona Hossain | 91a8fc9 | 2012-11-07 19:58:30 -0800 | [diff] [blame] | 1862 | } |
Mona Hossain | fca6f42 | 2013-01-12 13:00:35 -0800 | [diff] [blame] | 1863 | return ret; |
Mona Hossain | 91a8fc9 | 2012-11-07 19:58:30 -0800 | [diff] [blame] | 1864 | } |
| 1865 | EXPORT_SYMBOL(qseecom_set_bandwidth); |
| 1866 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1867 | static int qseecom_send_resp(void) |
| 1868 | { |
| 1869 | qseecom.send_resp_flag = 1; |
| 1870 | wake_up_interruptible(&qseecom.send_resp_wq); |
| 1871 | return 0; |
| 1872 | } |
| 1873 | |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 1874 | |
| 1875 | static int qseecom_send_modfd_resp(struct qseecom_dev_handle *data, |
| 1876 | void __user *argp) |
| 1877 | { |
| 1878 | struct qseecom_send_modfd_listener_resp resp; |
Mona Hossain | dddf444 | 2013-10-01 14:08:20 -0700 | [diff] [blame] | 1879 | int i; |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 1880 | |
| 1881 | if (copy_from_user(&resp, argp, sizeof(resp))) { |
| 1882 | pr_err("copy_from_user failed"); |
| 1883 | return -EINVAL; |
| 1884 | } |
Mona Hossain | dddf444 | 2013-10-01 14:08:20 -0700 | [diff] [blame] | 1885 | /* validate offsets */ |
| 1886 | for (i = 0; i < MAX_ION_FD; i++) { |
| 1887 | if (resp.ifd_data[i].cmd_buf_offset >= resp.resp_len) { |
| 1888 | pr_err("Invalid offset %d = 0x%x\n", |
| 1889 | i, resp.ifd_data[i].cmd_buf_offset); |
| 1890 | return -EINVAL; |
| 1891 | } |
| 1892 | } |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 1893 | __qseecom_update_cmd_buf(&resp, false, data, true); |
| 1894 | qseecom.send_resp_flag = 1; |
| 1895 | wake_up_interruptible(&qseecom.send_resp_wq); |
| 1896 | return 0; |
| 1897 | } |
| 1898 | |
| 1899 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1900 | static int qseecom_get_qseos_version(struct qseecom_dev_handle *data, |
| 1901 | void __user *argp) |
| 1902 | { |
| 1903 | struct qseecom_qseos_version_req req; |
| 1904 | |
| 1905 | if (copy_from_user(&req, argp, sizeof(req))) { |
| 1906 | pr_err("copy_from_user failed"); |
| 1907 | return -EINVAL; |
| 1908 | } |
| 1909 | req.qseos_version = qseecom.qseos_version; |
| 1910 | if (copy_to_user(argp, &req, sizeof(req))) { |
| 1911 | pr_err("copy_to_user failed"); |
| 1912 | return -EINVAL; |
| 1913 | } |
| 1914 | return 0; |
| 1915 | } |
| 1916 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 1917 | static int __qseecom_enable_clk(enum qseecom_ce_hw_instance ce) |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 1918 | { |
| 1919 | int rc = 0; |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 1920 | struct qseecom_clk *qclk; |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 1921 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 1922 | if (ce == CLK_QSEE) |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 1923 | qclk = &qseecom.qsee; |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 1924 | else |
| 1925 | qclk = &qseecom.ce_drv; |
| 1926 | |
| 1927 | mutex_lock(&clk_access_lock); |
Zhen Kong | 1f09c769 | 2013-05-03 17:50:32 -0700 | [diff] [blame] | 1928 | |
| 1929 | if (qclk->clk_access_cnt == ULONG_MAX) |
| 1930 | goto err; |
| 1931 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 1932 | if (qclk->clk_access_cnt > 0) { |
| 1933 | qclk->clk_access_cnt++; |
| 1934 | mutex_unlock(&clk_access_lock); |
| 1935 | return rc; |
| 1936 | } |
| 1937 | |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 1938 | /* Enable CE core clk */ |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 1939 | rc = clk_prepare_enable(qclk->ce_core_clk); |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 1940 | if (rc) { |
| 1941 | pr_err("Unable to enable/prepare CE core clk\n"); |
| 1942 | goto err; |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 1943 | } |
| 1944 | /* Enable CE clk */ |
| 1945 | rc = clk_prepare_enable(qclk->ce_clk); |
| 1946 | if (rc) { |
| 1947 | pr_err("Unable to enable/prepare CE iface clk\n"); |
| 1948 | goto ce_clk_err; |
| 1949 | } |
| 1950 | /* Enable AXI clk */ |
| 1951 | rc = clk_prepare_enable(qclk->ce_bus_clk); |
| 1952 | if (rc) { |
| 1953 | pr_err("Unable to enable/prepare CE bus clk\n"); |
| 1954 | goto ce_bus_clk_err; |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 1955 | } |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 1956 | qclk->clk_access_cnt++; |
| 1957 | mutex_unlock(&clk_access_lock); |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 1958 | return 0; |
| 1959 | |
| 1960 | ce_bus_clk_err: |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 1961 | clk_disable_unprepare(qclk->ce_clk); |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 1962 | ce_clk_err: |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 1963 | clk_disable_unprepare(qclk->ce_core_clk); |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 1964 | err: |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 1965 | mutex_unlock(&clk_access_lock); |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 1966 | return -EIO; |
| 1967 | } |
| 1968 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 1969 | static void __qseecom_disable_clk(enum qseecom_ce_hw_instance ce) |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 1970 | { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 1971 | struct qseecom_clk *qclk; |
| 1972 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 1973 | if (ce == CLK_QSEE) |
| 1974 | qclk = &qseecom.qsee; |
| 1975 | else |
| 1976 | qclk = &qseecom.ce_drv; |
| 1977 | |
| 1978 | mutex_lock(&clk_access_lock); |
Zhen Kong | 1f09c769 | 2013-05-03 17:50:32 -0700 | [diff] [blame] | 1979 | |
| 1980 | if (qclk->clk_access_cnt == 0) { |
| 1981 | mutex_unlock(&clk_access_lock); |
| 1982 | return; |
| 1983 | } |
| 1984 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 1985 | if (qclk->clk_access_cnt == 1) { |
| 1986 | if (qclk->ce_clk != NULL) |
| 1987 | clk_disable_unprepare(qclk->ce_clk); |
| 1988 | if (qclk->ce_core_clk != NULL) |
| 1989 | clk_disable_unprepare(qclk->ce_core_clk); |
| 1990 | if (qclk->ce_bus_clk != NULL) |
| 1991 | clk_disable_unprepare(qclk->ce_bus_clk); |
| 1992 | } |
| 1993 | qclk->clk_access_cnt--; |
| 1994 | mutex_unlock(&clk_access_lock); |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 1995 | } |
| 1996 | |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 1997 | static int qsee_vote_for_clock(struct qseecom_dev_handle *data, |
| 1998 | int32_t clk_type) |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 1999 | { |
| 2000 | int ret = 0; |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2001 | struct qseecom_clk *qclk; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2002 | |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2003 | qclk = &qseecom.qsee; |
| 2004 | if (!qseecom.qsee_perf_client) |
Ramesh Masavarapu | e640e84 | 2012-04-03 11:21:54 -0700 | [diff] [blame] | 2005 | return ret; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2006 | |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2007 | switch (clk_type) { |
| 2008 | case CLK_DFAB: |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2009 | mutex_lock(&qsee_bw_mutex); |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2010 | if (!qseecom.qsee_bw_count) { |
| 2011 | if (qseecom.qsee_sfpb_bw_count > 0) |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2012 | ret = msm_bus_scale_client_update_request( |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2013 | qseecom.qsee_perf_client, 3); |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 2014 | else { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2015 | if (qclk->ce_core_src_clk != NULL) |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2016 | ret = __qseecom_enable_clk(CLK_QSEE); |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 2017 | if (!ret) { |
| 2018 | ret = |
| 2019 | msm_bus_scale_client_update_request( |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2020 | qseecom.qsee_perf_client, 1); |
| 2021 | if ((ret) && |
| 2022 | (qclk->ce_core_src_clk != NULL)) |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2023 | __qseecom_disable_clk(CLK_QSEE); |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 2024 | } |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 2025 | } |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2026 | if (ret) |
| 2027 | pr_err("DFAB Bandwidth req failed (%d)\n", |
| 2028 | ret); |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 2029 | else { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2030 | qseecom.qsee_bw_count++; |
Mona Hossain | c9c83c7 | 2013-04-11 12:43:48 -0700 | [diff] [blame] | 2031 | data->perf_enabled = true; |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 2032 | } |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2033 | } else { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2034 | qseecom.qsee_bw_count++; |
Mona Hossain | c9c83c7 | 2013-04-11 12:43:48 -0700 | [diff] [blame] | 2035 | data->perf_enabled = true; |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2036 | } |
| 2037 | mutex_unlock(&qsee_bw_mutex); |
| 2038 | break; |
| 2039 | case CLK_SFPB: |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2040 | mutex_lock(&qsee_bw_mutex); |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2041 | if (!qseecom.qsee_sfpb_bw_count) { |
| 2042 | if (qseecom.qsee_bw_count > 0) |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2043 | ret = msm_bus_scale_client_update_request( |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2044 | qseecom.qsee_perf_client, 3); |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 2045 | else { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2046 | if (qclk->ce_core_src_clk != NULL) |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2047 | ret = __qseecom_enable_clk(CLK_QSEE); |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 2048 | if (!ret) { |
| 2049 | ret = |
| 2050 | msm_bus_scale_client_update_request( |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2051 | qseecom.qsee_perf_client, 2); |
| 2052 | if ((ret) && |
| 2053 | (qclk->ce_core_src_clk != NULL)) |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2054 | __qseecom_disable_clk(CLK_QSEE); |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 2055 | } |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 2056 | } |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2057 | |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2058 | if (ret) |
| 2059 | pr_err("SFPB Bandwidth req failed (%d)\n", |
| 2060 | ret); |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 2061 | else { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2062 | qseecom.qsee_sfpb_bw_count++; |
Mona Hossain | c9c83c7 | 2013-04-11 12:43:48 -0700 | [diff] [blame] | 2063 | data->fast_load_enabled = true; |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 2064 | } |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2065 | } else { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2066 | qseecom.qsee_sfpb_bw_count++; |
Mona Hossain | c9c83c7 | 2013-04-11 12:43:48 -0700 | [diff] [blame] | 2067 | data->fast_load_enabled = true; |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2068 | } |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2069 | mutex_unlock(&qsee_bw_mutex); |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2070 | break; |
| 2071 | default: |
| 2072 | pr_err("Clock type not defined\n"); |
| 2073 | break; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2074 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2075 | return ret; |
| 2076 | } |
| 2077 | |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 2078 | static void qsee_disable_clock_vote(struct qseecom_dev_handle *data, |
| 2079 | int32_t clk_type) |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2080 | { |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2081 | int32_t ret = 0; |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2082 | struct qseecom_clk *qclk; |
Ramesh Masavarapu | a1bc0e4 | 2012-03-05 07:42:48 -0800 | [diff] [blame] | 2083 | |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2084 | qclk = &qseecom.qsee; |
| 2085 | if (!qseecom.qsee_perf_client) |
Ramesh Masavarapu | a1bc0e4 | 2012-03-05 07:42:48 -0800 | [diff] [blame] | 2086 | return; |
| 2087 | |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2088 | switch (clk_type) { |
| 2089 | case CLK_DFAB: |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2090 | mutex_lock(&qsee_bw_mutex); |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2091 | if (qseecom.qsee_bw_count == 0) { |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2092 | pr_err("Client error.Extra call to disable DFAB clk\n"); |
| 2093 | mutex_unlock(&qsee_bw_mutex); |
| 2094 | return; |
| 2095 | } |
| 2096 | |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2097 | if (qseecom.qsee_bw_count == 1) { |
| 2098 | if (qseecom.qsee_sfpb_bw_count > 0) |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2099 | ret = msm_bus_scale_client_update_request( |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2100 | qseecom.qsee_perf_client, 2); |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 2101 | else { |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2102 | ret = msm_bus_scale_client_update_request( |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2103 | qseecom.qsee_perf_client, 0); |
| 2104 | if ((!ret) && (qclk->ce_core_src_clk != NULL)) |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2105 | __qseecom_disable_clk(CLK_QSEE); |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 2106 | } |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2107 | if (ret) |
| 2108 | pr_err("SFPB Bandwidth req fail (%d)\n", |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2109 | ret); |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 2110 | else { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2111 | qseecom.qsee_bw_count--; |
Mona Hossain | c9c83c7 | 2013-04-11 12:43:48 -0700 | [diff] [blame] | 2112 | data->perf_enabled = false; |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 2113 | } |
| 2114 | } else { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2115 | qseecom.qsee_bw_count--; |
Mona Hossain | c9c83c7 | 2013-04-11 12:43:48 -0700 | [diff] [blame] | 2116 | data->perf_enabled = false; |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2117 | } |
| 2118 | mutex_unlock(&qsee_bw_mutex); |
| 2119 | break; |
| 2120 | case CLK_SFPB: |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2121 | mutex_lock(&qsee_bw_mutex); |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2122 | if (qseecom.qsee_sfpb_bw_count == 0) { |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2123 | pr_err("Client error.Extra call to disable SFPB clk\n"); |
| 2124 | mutex_unlock(&qsee_bw_mutex); |
| 2125 | return; |
| 2126 | } |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2127 | if (qseecom.qsee_sfpb_bw_count == 1) { |
| 2128 | if (qseecom.qsee_bw_count > 0) |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2129 | ret = msm_bus_scale_client_update_request( |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2130 | qseecom.qsee_perf_client, 1); |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 2131 | else { |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2132 | ret = msm_bus_scale_client_update_request( |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2133 | qseecom.qsee_perf_client, 0); |
| 2134 | if ((!ret) && (qclk->ce_core_src_clk != NULL)) |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2135 | __qseecom_disable_clk(CLK_QSEE); |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 2136 | } |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2137 | if (ret) |
| 2138 | pr_err("SFPB Bandwidth req fail (%d)\n", |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2139 | ret); |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 2140 | else { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2141 | qseecom.qsee_sfpb_bw_count--; |
Mona Hossain | c9c83c7 | 2013-04-11 12:43:48 -0700 | [diff] [blame] | 2142 | data->fast_load_enabled = false; |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 2143 | } |
| 2144 | } else { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 2145 | qseecom.qsee_sfpb_bw_count--; |
Mona Hossain | c9c83c7 | 2013-04-11 12:43:48 -0700 | [diff] [blame] | 2146 | data->fast_load_enabled = false; |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2147 | } |
Ramesh Masavarapu | 8d75658 | 2012-10-03 10:18:06 -0700 | [diff] [blame] | 2148 | mutex_unlock(&qsee_bw_mutex); |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2149 | break; |
| 2150 | default: |
| 2151 | pr_err("Clock type not defined\n"); |
| 2152 | break; |
Ramesh Masavarapu | e640e84 | 2012-04-03 11:21:54 -0700 | [diff] [blame] | 2153 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2154 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2155 | } |
| 2156 | |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2157 | static int qseecom_load_external_elf(struct qseecom_dev_handle *data, |
| 2158 | void __user *argp) |
| 2159 | { |
| 2160 | struct ion_handle *ihandle; /* Ion handle */ |
| 2161 | struct qseecom_load_img_req load_img_req; |
Ramesh Masavarapu | 41af8ab | 2012-05-21 11:08:00 -0700 | [diff] [blame] | 2162 | int ret; |
| 2163 | int set_cpu_ret = 0; |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2164 | ion_phys_addr_t pa = 0; |
| 2165 | uint32_t len; |
Ramesh Masavarapu | 41af8ab | 2012-05-21 11:08:00 -0700 | [diff] [blame] | 2166 | struct cpumask mask; |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2167 | struct qseecom_load_app_ireq load_req; |
| 2168 | struct qseecom_command_scm_resp resp; |
| 2169 | |
| 2170 | /* Copy the relevant information needed for loading the image */ |
Hariprasad Dhalinarasimha | e201495 | 2013-10-01 18:25:21 -0700 | [diff] [blame] | 2171 | if (copy_from_user(&load_img_req, |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2172 | (void __user *)argp, |
| 2173 | sizeof(struct qseecom_load_img_req))) { |
| 2174 | pr_err("copy_from_user failed\n"); |
| 2175 | return -EFAULT; |
| 2176 | } |
| 2177 | |
| 2178 | /* Get the handle of the shared fd */ |
Laura Abbott | b14ed96 | 2012-01-30 14:18:08 -0800 | [diff] [blame] | 2179 | ihandle = ion_import_dma_buf(qseecom.ion_clnt, |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2180 | load_img_req.ifd_data_fd); |
| 2181 | if (IS_ERR_OR_NULL(ihandle)) { |
| 2182 | pr_err("Ion client could not retrieve the handle\n"); |
| 2183 | return -ENOMEM; |
| 2184 | } |
| 2185 | |
| 2186 | /* Get the physical address of the ION BUF */ |
| 2187 | ret = ion_phys(qseecom.ion_clnt, ihandle, &pa, &len); |
| 2188 | |
| 2189 | /* Populate the structure for sending scm call to load image */ |
| 2190 | load_req.qsee_cmd_id = QSEOS_LOAD_EXTERNAL_ELF_COMMAND; |
| 2191 | load_req.mdt_len = load_img_req.mdt_len; |
| 2192 | load_req.img_len = load_img_req.img_len; |
| 2193 | load_req.phy_addr = pa; |
| 2194 | |
Ramesh Masavarapu | 41af8ab | 2012-05-21 11:08:00 -0700 | [diff] [blame] | 2195 | /* SCM_CALL tied to Core0 */ |
| 2196 | mask = CPU_MASK_CPU0; |
| 2197 | set_cpu_ret = set_cpus_allowed_ptr(current, &mask); |
| 2198 | if (set_cpu_ret) { |
| 2199 | pr_err("set_cpus_allowed_ptr failed : ret %d\n", |
| 2200 | set_cpu_ret); |
| 2201 | ret = -EFAULT; |
AnilKumar Chimata | c470bc9 | 2013-06-12 13:08:37 +0530 | [diff] [blame] | 2202 | goto exit_ion_free; |
Ramesh Masavarapu | 41af8ab | 2012-05-21 11:08:00 -0700 | [diff] [blame] | 2203 | } |
AnilKumar Chimata | c470bc9 | 2013-06-12 13:08:37 +0530 | [diff] [blame] | 2204 | |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 2205 | /* Vote for the SFPB clock */ |
| 2206 | ret = qsee_vote_for_clock(data, CLK_SFPB); |
| 2207 | if (ret) { |
| 2208 | pr_err("Unable to vote for SFPB clock: ret = %d", ret); |
| 2209 | ret = -EIO; |
AnilKumar Chimata | c470bc9 | 2013-06-12 13:08:37 +0530 | [diff] [blame] | 2210 | goto exit_cpu_restore; |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 2211 | } |
Hariprasad Dhalinarasimha | 682d1c3 | 2013-05-19 21:22:10 -0700 | [diff] [blame] | 2212 | msm_ion_do_cache_op(qseecom.ion_clnt, ihandle, NULL, len, |
| 2213 | ION_IOC_CLEAN_INV_CACHES); |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2214 | /* SCM_CALL to load the external elf */ |
| 2215 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, &load_req, |
| 2216 | sizeof(struct qseecom_load_app_ireq), |
| 2217 | &resp, sizeof(resp)); |
| 2218 | if (ret) { |
Ramesh Masavarapu | 41af8ab | 2012-05-21 11:08:00 -0700 | [diff] [blame] | 2219 | pr_err("scm_call to load failed : ret %d\n", |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2220 | ret); |
| 2221 | ret = -EFAULT; |
AnilKumar Chimata | c470bc9 | 2013-06-12 13:08:37 +0530 | [diff] [blame] | 2222 | goto exit_disable_clock; |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2223 | } |
| 2224 | |
AnilKumar Chimata | c470bc9 | 2013-06-12 13:08:37 +0530 | [diff] [blame] | 2225 | switch (resp.result) { |
| 2226 | case QSEOS_RESULT_SUCCESS: |
| 2227 | break; |
| 2228 | case QSEOS_RESULT_INCOMPLETE: |
| 2229 | pr_err("%s: qseos result incomplete\n", __func__); |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2230 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 2231 | if (ret) |
AnilKumar Chimata | c470bc9 | 2013-06-12 13:08:37 +0530 | [diff] [blame] | 2232 | pr_err("process_incomplete_cmd failed: err: %d\n", ret); |
| 2233 | break; |
| 2234 | case QSEOS_RESULT_FAILURE: |
| 2235 | pr_err("scm_call rsp.result is QSEOS_RESULT_FAILURE\n"); |
| 2236 | ret = -EFAULT; |
| 2237 | break; |
| 2238 | default: |
| 2239 | pr_err("scm_call response result %d not supported\n", |
| 2240 | resp.result); |
| 2241 | ret = -EFAULT; |
| 2242 | break; |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2243 | } |
Ramesh Masavarapu | 41af8ab | 2012-05-21 11:08:00 -0700 | [diff] [blame] | 2244 | |
AnilKumar Chimata | c470bc9 | 2013-06-12 13:08:37 +0530 | [diff] [blame] | 2245 | exit_disable_clock: |
| 2246 | qsee_disable_clock_vote(data, CLK_SFPB); |
| 2247 | exit_cpu_restore: |
Ramesh Masavarapu | 41af8ab | 2012-05-21 11:08:00 -0700 | [diff] [blame] | 2248 | /* Restore the CPU mask */ |
| 2249 | mask = CPU_MASK_ALL; |
| 2250 | set_cpu_ret = set_cpus_allowed_ptr(current, &mask); |
| 2251 | if (set_cpu_ret) { |
| 2252 | pr_err("set_cpus_allowed_ptr failed to restore mask: ret %d\n", |
| 2253 | set_cpu_ret); |
| 2254 | ret = -EFAULT; |
| 2255 | } |
AnilKumar Chimata | c470bc9 | 2013-06-12 13:08:37 +0530 | [diff] [blame] | 2256 | exit_ion_free: |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2257 | /* Deallocate the handle */ |
| 2258 | if (!IS_ERR_OR_NULL(ihandle)) |
| 2259 | ion_free(qseecom.ion_clnt, ihandle); |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2260 | return ret; |
| 2261 | } |
| 2262 | |
| 2263 | static int qseecom_unload_external_elf(struct qseecom_dev_handle *data) |
| 2264 | { |
| 2265 | int ret = 0; |
Ramesh Masavarapu | 41af8ab | 2012-05-21 11:08:00 -0700 | [diff] [blame] | 2266 | int set_cpu_ret = 0; |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2267 | struct qseecom_command_scm_resp resp; |
| 2268 | struct qseecom_unload_app_ireq req; |
Ramesh Masavarapu | 41af8ab | 2012-05-21 11:08:00 -0700 | [diff] [blame] | 2269 | struct cpumask mask; |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2270 | |
AnilKumar Chimata | f732bbe | 2013-07-24 00:44:09 +0530 | [diff] [blame] | 2271 | /* unavailable client app */ |
| 2272 | data->type = QSEECOM_UNAVAILABLE_CLIENT_APP; |
| 2273 | |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2274 | /* Populate the structure for sending scm call to unload image */ |
| 2275 | req.qsee_cmd_id = QSEOS_UNLOAD_EXTERNAL_ELF_COMMAND; |
Ramesh Masavarapu | 41af8ab | 2012-05-21 11:08:00 -0700 | [diff] [blame] | 2276 | |
| 2277 | /* SCM_CALL tied to Core0 */ |
| 2278 | mask = CPU_MASK_CPU0; |
| 2279 | ret = set_cpus_allowed_ptr(current, &mask); |
| 2280 | if (ret) { |
| 2281 | pr_err("set_cpus_allowed_ptr failed : ret %d\n", |
| 2282 | ret); |
| 2283 | return -EFAULT; |
| 2284 | } |
| 2285 | |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2286 | /* SCM_CALL to unload the external elf */ |
| 2287 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, &req, |
| 2288 | sizeof(struct qseecom_unload_app_ireq), |
| 2289 | &resp, sizeof(resp)); |
| 2290 | if (ret) { |
| 2291 | pr_err("scm_call to unload failed : ret %d\n", |
| 2292 | ret); |
Ramesh Masavarapu | 41af8ab | 2012-05-21 11:08:00 -0700 | [diff] [blame] | 2293 | ret = -EFAULT; |
| 2294 | goto qseecom_unload_external_elf_scm_err; |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2295 | } |
| 2296 | if (resp.result == QSEOS_RESULT_INCOMPLETE) { |
| 2297 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 2298 | if (ret) |
| 2299 | pr_err("process_incomplete_cmd fail err: %d\n", |
| 2300 | ret); |
| 2301 | } else { |
| 2302 | if (resp.result != QSEOS_RESULT_SUCCESS) { |
| 2303 | pr_err("scm_call to unload image failed resp.result =%d\n", |
| 2304 | resp.result); |
| 2305 | ret = -EFAULT; |
| 2306 | } |
| 2307 | } |
Ramesh Masavarapu | 41af8ab | 2012-05-21 11:08:00 -0700 | [diff] [blame] | 2308 | |
| 2309 | qseecom_unload_external_elf_scm_err: |
| 2310 | /* Restore the CPU mask */ |
| 2311 | mask = CPU_MASK_ALL; |
| 2312 | set_cpu_ret = set_cpus_allowed_ptr(current, &mask); |
| 2313 | if (set_cpu_ret) { |
| 2314 | pr_err("set_cpus_allowed_ptr failed to restore mask: ret %d\n", |
| 2315 | set_cpu_ret); |
| 2316 | ret = -EFAULT; |
| 2317 | } |
| 2318 | |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2319 | return ret; |
| 2320 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2321 | |
Ramesh Masavarapu | 1ee4ac8 | 2012-06-22 15:38:34 -0700 | [diff] [blame] | 2322 | static int qseecom_query_app_loaded(struct qseecom_dev_handle *data, |
| 2323 | void __user *argp) |
| 2324 | { |
| 2325 | |
| 2326 | int32_t ret; |
| 2327 | struct qseecom_qseos_app_load_query query_req; |
| 2328 | struct qseecom_check_app_ireq req; |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 2329 | struct qseecom_registered_app_list *entry = NULL; |
| 2330 | unsigned long flags = 0; |
Ramesh Masavarapu | 1ee4ac8 | 2012-06-22 15:38:34 -0700 | [diff] [blame] | 2331 | |
| 2332 | /* Copy the relevant information needed for loading the image */ |
Hariprasad Dhalinarasimha | e201495 | 2013-10-01 18:25:21 -0700 | [diff] [blame] | 2333 | if (copy_from_user(&query_req, |
Ramesh Masavarapu | 1ee4ac8 | 2012-06-22 15:38:34 -0700 | [diff] [blame] | 2334 | (void __user *)argp, |
| 2335 | sizeof(struct qseecom_qseos_app_load_query))) { |
| 2336 | pr_err("copy_from_user failed\n"); |
| 2337 | return -EFAULT; |
| 2338 | } |
| 2339 | |
| 2340 | req.qsee_cmd_id = QSEOS_APP_LOOKUP_COMMAND; |
Hariprasad Dhalinarasimha | 7a01882 | 2013-10-03 16:52:16 -0700 | [diff] [blame] | 2341 | query_req.app_name[MAX_APP_NAME_SIZE-1] = '\0'; |
Ramesh Masavarapu | 1ee4ac8 | 2012-06-22 15:38:34 -0700 | [diff] [blame] | 2342 | memcpy(req.app_name, query_req.app_name, MAX_APP_NAME_SIZE); |
| 2343 | |
| 2344 | ret = __qseecom_check_app_exists(req); |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 2345 | |
| 2346 | if ((ret == -EINVAL) || (ret == -ENODEV)) { |
Ramesh Masavarapu | 1ee4ac8 | 2012-06-22 15:38:34 -0700 | [diff] [blame] | 2347 | pr_err(" scm call to check if app is loaded failed"); |
| 2348 | return ret; /* scm call failed */ |
| 2349 | } else if (ret > 0) { |
Mona Hossain | 7c44320 | 2013-04-18 12:08:58 -0700 | [diff] [blame] | 2350 | pr_debug("App id %d (%s) already exists\n", ret, |
Ramesh Masavarapu | 13d9967 | 2012-07-17 11:05:15 -0700 | [diff] [blame] | 2351 | (char *)(req.app_name)); |
| 2352 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 2353 | list_for_each_entry(entry, |
| 2354 | &qseecom.registered_app_list_head, list){ |
| 2355 | if (entry->app_id == ret) { |
| 2356 | entry->ref_cnt++; |
| 2357 | break; |
| 2358 | } |
| 2359 | } |
| 2360 | spin_unlock_irqrestore( |
| 2361 | &qseecom.registered_app_list_lock, flags); |
| 2362 | data->client.app_id = ret; |
| 2363 | query_req.app_id = ret; |
| 2364 | |
| 2365 | if (copy_to_user(argp, &query_req, sizeof(query_req))) { |
| 2366 | pr_err("copy_to_user failed\n"); |
| 2367 | return -EFAULT; |
| 2368 | } |
Ramesh Masavarapu | 1ee4ac8 | 2012-06-22 15:38:34 -0700 | [diff] [blame] | 2369 | return -EEXIST; /* app already loaded */ |
| 2370 | } else { |
| 2371 | return 0; /* app not loaded */ |
| 2372 | } |
| 2373 | } |
| 2374 | |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2375 | static int __qseecom_get_ce_pipe_info( |
| 2376 | enum qseecom_key_management_usage_type usage, |
| 2377 | uint32_t *pipe, uint32_t *ce_hw) |
| 2378 | { |
| 2379 | int ret; |
| 2380 | switch (usage) { |
| 2381 | case QSEOS_KM_USAGE_DISK_ENCRYPTION: |
| 2382 | if (qseecom.ce_info.disk_encrypt_pipe == 0xFF || |
| 2383 | qseecom.ce_info.hlos_ce_hw_instance == 0xFF) { |
| 2384 | pr_err("nfo unavailable: disk encr pipe %d ce_hw %d\n", |
| 2385 | qseecom.ce_info.disk_encrypt_pipe, |
| 2386 | qseecom.ce_info.hlos_ce_hw_instance); |
| 2387 | ret = -EINVAL; |
| 2388 | } else { |
| 2389 | *pipe = qseecom.ce_info.disk_encrypt_pipe; |
| 2390 | *ce_hw = qseecom.ce_info.hlos_ce_hw_instance; |
| 2391 | ret = 0; |
| 2392 | } |
| 2393 | break; |
| 2394 | default: |
| 2395 | ret = -EINVAL; |
| 2396 | break; |
| 2397 | } |
| 2398 | return ret; |
| 2399 | } |
| 2400 | |
| 2401 | static int __qseecom_generate_and_save_key(struct qseecom_dev_handle *data, |
| 2402 | enum qseecom_key_management_usage_type usage, |
| 2403 | uint8_t *key_id, uint32_t flags) |
| 2404 | { |
| 2405 | struct qseecom_key_generate_ireq ireq; |
| 2406 | struct qseecom_command_scm_resp resp; |
| 2407 | int ret; |
| 2408 | |
| 2409 | if (usage != QSEOS_KM_USAGE_DISK_ENCRYPTION) { |
| 2410 | pr_err("Error:: unsupported usage %d\n", usage); |
| 2411 | return -EFAULT; |
| 2412 | } |
| 2413 | |
| 2414 | memcpy(ireq.key_id, key_id, QSEECOM_KEY_ID_SIZE); |
| 2415 | ireq.flags = flags; |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2416 | ireq.qsee_command_id = QSEOS_GENERATE_KEY; |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2417 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2418 | __qseecom_enable_clk(CLK_QSEE); |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2419 | |
| 2420 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2421 | &ireq, sizeof(struct qseecom_key_generate_ireq), |
| 2422 | &resp, sizeof(resp)); |
| 2423 | if (ret) { |
| 2424 | pr_err("scm call to generate key failed : %d\n", ret); |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2425 | __qseecom_disable_clk(CLK_QSEE); |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2426 | return ret; |
| 2427 | } |
| 2428 | |
| 2429 | switch (resp.result) { |
| 2430 | case QSEOS_RESULT_SUCCESS: |
| 2431 | break; |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2432 | case QSEOS_RESULT_FAIL_KEY_ID_EXISTS: |
Zhen Kong | db2bf74 | 2013-05-13 23:55:42 -0700 | [diff] [blame] | 2433 | pr_debug("process_incomplete_cmd return Key ID exists.\n"); |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2434 | break; |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2435 | case QSEOS_RESULT_INCOMPLETE: |
| 2436 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2437 | if (ret) { |
| 2438 | if (resp.result == QSEOS_RESULT_FAIL_KEY_ID_EXISTS) { |
Zhen Kong | db2bf74 | 2013-05-13 23:55:42 -0700 | [diff] [blame] | 2439 | pr_debug("process_incomplete_cmd return Key ID exists.\n"); |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2440 | ret = 0; |
| 2441 | } else { |
| 2442 | pr_err("process_incomplete_cmd FAILED, resp.result %d\n", |
| 2443 | resp.result); |
| 2444 | } |
| 2445 | } |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2446 | break; |
| 2447 | case QSEOS_RESULT_FAILURE: |
| 2448 | default: |
| 2449 | pr_err("gen key scm call failed resp.result %d\n", resp.result); |
| 2450 | ret = -EINVAL; |
| 2451 | break; |
| 2452 | } |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2453 | __qseecom_disable_clk(CLK_QSEE); |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2454 | return ret; |
| 2455 | } |
| 2456 | |
| 2457 | static int __qseecom_delete_saved_key(struct qseecom_dev_handle *data, |
| 2458 | enum qseecom_key_management_usage_type usage, |
| 2459 | uint8_t *key_id, uint32_t flags) |
| 2460 | { |
| 2461 | struct qseecom_key_delete_ireq ireq; |
| 2462 | struct qseecom_command_scm_resp resp; |
| 2463 | int ret; |
| 2464 | |
| 2465 | if (usage != QSEOS_KM_USAGE_DISK_ENCRYPTION) { |
| 2466 | pr_err("Error:: unsupported usage %d\n", usage); |
| 2467 | return -EFAULT; |
| 2468 | } |
| 2469 | |
| 2470 | memcpy(ireq.key_id, key_id, QSEECOM_KEY_ID_SIZE); |
| 2471 | ireq.flags = flags; |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2472 | ireq.qsee_command_id = QSEOS_DELETE_KEY; |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2473 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2474 | __qseecom_enable_clk(CLK_QSEE); |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2475 | |
| 2476 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2477 | &ireq, sizeof(struct qseecom_key_delete_ireq), |
| 2478 | &resp, sizeof(struct qseecom_command_scm_resp)); |
| 2479 | if (ret) { |
| 2480 | pr_err("scm call to delete key failed : %d\n", ret); |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2481 | __qseecom_disable_clk(CLK_QSEE); |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2482 | return ret; |
| 2483 | } |
| 2484 | |
| 2485 | switch (resp.result) { |
| 2486 | case QSEOS_RESULT_SUCCESS: |
| 2487 | break; |
| 2488 | case QSEOS_RESULT_INCOMPLETE: |
| 2489 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 2490 | if (ret) |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2491 | pr_err("process_incomplete_cmd FAILED, resp.result %d\n", |
| 2492 | resp.result); |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2493 | break; |
| 2494 | case QSEOS_RESULT_FAILURE: |
| 2495 | default: |
| 2496 | pr_err("Delete key scm call failed resp.result %d\n", |
| 2497 | resp.result); |
| 2498 | ret = -EINVAL; |
| 2499 | break; |
| 2500 | } |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2501 | __qseecom_disable_clk(CLK_QSEE); |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2502 | return ret; |
| 2503 | } |
| 2504 | |
| 2505 | static int __qseecom_set_clear_ce_key(struct qseecom_dev_handle *data, |
| 2506 | enum qseecom_key_management_usage_type usage, |
| 2507 | struct qseecom_set_key_parameter *set_key_para) |
| 2508 | { |
| 2509 | struct qseecom_key_select_ireq ireq; |
| 2510 | struct qseecom_command_scm_resp resp; |
| 2511 | int ret; |
| 2512 | |
| 2513 | if (usage != QSEOS_KM_USAGE_DISK_ENCRYPTION) { |
| 2514 | pr_err("Error:: unsupported usage %d\n", usage); |
| 2515 | return -EFAULT; |
| 2516 | } |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2517 | |
Zhen Kong | db2bf74 | 2013-05-13 23:55:42 -0700 | [diff] [blame] | 2518 | __qseecom_enable_clk(CLK_QSEE); |
| 2519 | if (qseecom.qsee.instance != qseecom.ce_drv.instance) |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2520 | __qseecom_enable_clk(CLK_CE_DRV); |
| 2521 | |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2522 | memcpy(ireq.key_id, set_key_para->key_id, QSEECOM_KEY_ID_SIZE); |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2523 | ireq.qsee_command_id = QSEOS_SET_KEY; |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2524 | ireq.ce = set_key_para->ce_hw; |
| 2525 | ireq.pipe = set_key_para->pipe; |
| 2526 | ireq.flags = set_key_para->flags; |
| 2527 | |
Zhen Kong | 1f09c769 | 2013-05-03 17:50:32 -0700 | [diff] [blame] | 2528 | /* set both PIPE_ENC and PIPE_ENC_XTS*/ |
| 2529 | ireq.pipe_type = QSEOS_PIPE_ENC|QSEOS_PIPE_ENC_XTS; |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2530 | |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2531 | if (set_key_para->set_clear_key_flag == |
| 2532 | QSEECOM_SET_CE_KEY_CMD) |
| 2533 | memcpy((void *)ireq.hash, (void *)set_key_para->hash32, |
| 2534 | QSEECOM_HASH_SIZE); |
| 2535 | else |
| 2536 | memset((void *)ireq.hash, 0, QSEECOM_HASH_SIZE); |
| 2537 | |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2538 | ret = scm_call(SCM_SVC_TZSCHEDULER, 1, |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2539 | &ireq, sizeof(struct qseecom_key_select_ireq), |
| 2540 | &resp, sizeof(struct qseecom_command_scm_resp)); |
| 2541 | if (ret) { |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2542 | pr_err("scm call to set QSEOS_PIPE_ENC key failed : %d\n", ret); |
Zhen Kong | db2bf74 | 2013-05-13 23:55:42 -0700 | [diff] [blame] | 2543 | __qseecom_disable_clk(CLK_QSEE); |
| 2544 | if (qseecom.qsee.instance != qseecom.ce_drv.instance) |
| 2545 | __qseecom_disable_clk(CLK_CE_DRV); |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2546 | return ret; |
| 2547 | } |
| 2548 | |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2549 | switch (resp.result) { |
| 2550 | case QSEOS_RESULT_SUCCESS: |
| 2551 | break; |
| 2552 | case QSEOS_RESULT_INCOMPLETE: |
| 2553 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 2554 | if (ret) |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 2555 | pr_err("process_incomplete_cmd FAILED, resp.result %d\n", |
| 2556 | resp.result); |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2557 | break; |
| 2558 | case QSEOS_RESULT_FAILURE: |
| 2559 | default: |
| 2560 | pr_err("Set key scm call failed resp.result %d\n", resp.result); |
| 2561 | ret = -EINVAL; |
| 2562 | break; |
| 2563 | } |
| 2564 | |
Zhen Kong | db2bf74 | 2013-05-13 23:55:42 -0700 | [diff] [blame] | 2565 | __qseecom_disable_clk(CLK_QSEE); |
| 2566 | if (qseecom.qsee.instance != qseecom.ce_drv.instance) |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 2567 | __qseecom_disable_clk(CLK_CE_DRV); |
| 2568 | |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 2569 | return ret; |
| 2570 | } |
| 2571 | |
| 2572 | static int qseecom_create_key(struct qseecom_dev_handle *data, |
| 2573 | void __user *argp) |
| 2574 | { |
| 2575 | uint32_t ce_hw = 0; |
| 2576 | uint32_t pipe = 0; |
| 2577 | uint8_t key_id[QSEECOM_KEY_ID_SIZE] = {0}; |
| 2578 | int ret = 0; |
| 2579 | uint32_t flags = 0; |
| 2580 | struct qseecom_set_key_parameter set_key_para; |
| 2581 | struct qseecom_create_key_req create_key_req; |
| 2582 | |
| 2583 | ret = copy_from_user(&create_key_req, argp, sizeof(create_key_req)); |
| 2584 | if (ret) { |
| 2585 | pr_err("copy_from_user failed\n"); |
| 2586 | return ret; |
| 2587 | } |
| 2588 | |
| 2589 | if (create_key_req.usage != QSEOS_KM_USAGE_DISK_ENCRYPTION) { |
| 2590 | pr_err("Error:: unsupported usage %d\n", create_key_req.usage); |
| 2591 | return -EFAULT; |
| 2592 | } |
| 2593 | |
| 2594 | ret = __qseecom_get_ce_pipe_info(create_key_req.usage, &pipe, &ce_hw); |
| 2595 | if (ret) { |
| 2596 | pr_err("Failed to retrieve pipe/ce_hw info: %d\n", ret); |
| 2597 | return -EINVAL; |
| 2598 | } |
| 2599 | |
| 2600 | ret = __qseecom_generate_and_save_key(data, create_key_req.usage, |
| 2601 | key_id, flags); |
| 2602 | if (ret) { |
| 2603 | pr_err("Failed to generate key on storage: %d\n", ret); |
| 2604 | return -EFAULT; |
| 2605 | } |
| 2606 | |
| 2607 | set_key_para.ce_hw = ce_hw; |
| 2608 | set_key_para.pipe = pipe; |
| 2609 | memcpy(set_key_para.key_id, key_id, QSEECOM_KEY_ID_SIZE); |
| 2610 | set_key_para.flags = flags; |
| 2611 | set_key_para.set_clear_key_flag = QSEECOM_SET_CE_KEY_CMD; |
| 2612 | memcpy((void *)set_key_para.hash32, (void *)create_key_req.hash32, |
| 2613 | QSEECOM_HASH_SIZE); |
| 2614 | |
| 2615 | ret = __qseecom_set_clear_ce_key(data, create_key_req.usage, |
| 2616 | &set_key_para); |
| 2617 | if (ret) { |
| 2618 | pr_err("Failed to create key: pipe %d, ce %d: %d\n", |
| 2619 | pipe, ce_hw, ret); |
| 2620 | return -EFAULT; |
| 2621 | } |
| 2622 | |
| 2623 | return ret; |
| 2624 | } |
| 2625 | |
| 2626 | static int qseecom_wipe_key(struct qseecom_dev_handle *data, |
| 2627 | void __user *argp) |
| 2628 | { |
| 2629 | uint32_t ce_hw = 0; |
| 2630 | uint32_t pipe = 0; |
| 2631 | uint8_t key_id[QSEECOM_KEY_ID_SIZE] = {0}; |
| 2632 | int ret = 0; |
| 2633 | uint32_t flags = 0; |
| 2634 | int i; |
| 2635 | struct qseecom_wipe_key_req wipe_key_req; |
| 2636 | struct qseecom_set_key_parameter clear_key_para; |
| 2637 | |
| 2638 | ret = copy_from_user(&wipe_key_req, argp, sizeof(wipe_key_req)); |
| 2639 | if (ret) { |
| 2640 | pr_err("copy_from_user failed\n"); |
| 2641 | return ret; |
| 2642 | } |
| 2643 | |
| 2644 | if (wipe_key_req.usage != QSEOS_KM_USAGE_DISK_ENCRYPTION) { |
| 2645 | pr_err("Error:: unsupported usage %d\n", wipe_key_req.usage); |
| 2646 | return -EFAULT; |
| 2647 | } |
| 2648 | |
| 2649 | ret = __qseecom_get_ce_pipe_info(wipe_key_req.usage, &pipe, &ce_hw); |
| 2650 | if (ret) { |
| 2651 | pr_err("Failed to retrieve pipe/ce_hw info: %d\n", ret); |
| 2652 | return -EINVAL; |
| 2653 | } |
| 2654 | |
| 2655 | ret = __qseecom_delete_saved_key(data, wipe_key_req.usage, key_id, |
| 2656 | flags); |
| 2657 | if (ret) { |
| 2658 | pr_err("Failed to delete key from ssd storage: %d\n", ret); |
| 2659 | return -EFAULT; |
| 2660 | } |
| 2661 | |
| 2662 | /* an invalid key_id 0xff is used to indicate clear key*/ |
| 2663 | for (i = 0; i < QSEECOM_KEY_ID_SIZE; i++) |
| 2664 | clear_key_para.key_id[i] = 0xff; |
| 2665 | clear_key_para.ce_hw = ce_hw; |
| 2666 | clear_key_para.pipe = pipe; |
| 2667 | clear_key_para.flags = flags; |
| 2668 | clear_key_para.set_clear_key_flag = QSEECOM_CLEAR_CE_KEY_CMD; |
| 2669 | ret = __qseecom_set_clear_ce_key(data, wipe_key_req.usage, |
| 2670 | &clear_key_para); |
| 2671 | if (ret) { |
| 2672 | pr_err("Failed to wipe key: pipe %d, ce %d: %d\n", |
| 2673 | pipe, ce_hw, ret); |
| 2674 | return -EFAULT; |
| 2675 | } |
| 2676 | |
| 2677 | return ret; |
| 2678 | } |
| 2679 | |
Amir Samuelov | d1fc741 | 2013-03-10 16:56:13 +0200 | [diff] [blame] | 2680 | static int qseecom_is_es_activated(void __user *argp) |
| 2681 | { |
| 2682 | struct qseecom_is_es_activated_req req; |
| 2683 | int ret; |
| 2684 | int resp_buf; |
| 2685 | |
| 2686 | if (qseecom.qsee_version < QSEE_VERSION_04) { |
| 2687 | pr_err("invalid qsee version"); |
| 2688 | return -ENODEV; |
| 2689 | } |
| 2690 | |
| 2691 | if (argp == NULL) { |
| 2692 | pr_err("arg is null"); |
| 2693 | return -EINVAL; |
| 2694 | } |
| 2695 | |
| 2696 | ret = scm_call(SCM_SVC_ES, SCM_IS_ACTIVATED_ID, NULL, 0, |
| 2697 | (void *) &resp_buf, sizeof(resp_buf)); |
| 2698 | if (ret) { |
| 2699 | pr_err("scm_call failed"); |
| 2700 | return ret; |
| 2701 | } |
| 2702 | |
| 2703 | req.is_activated = resp_buf; |
| 2704 | ret = copy_to_user(argp, &req, sizeof(req)); |
| 2705 | if (ret) { |
| 2706 | pr_err("copy_to_user failed"); |
| 2707 | return ret; |
| 2708 | } |
| 2709 | |
| 2710 | return 0; |
| 2711 | } |
| 2712 | |
| 2713 | static int qseecom_save_partition_hash(void __user *argp) |
| 2714 | { |
| 2715 | struct qseecom_save_partition_hash_req req; |
| 2716 | int ret; |
| 2717 | |
| 2718 | if (qseecom.qsee_version < QSEE_VERSION_04) { |
| 2719 | pr_err("invalid qsee version "); |
| 2720 | return -ENODEV; |
| 2721 | } |
| 2722 | |
| 2723 | if (argp == NULL) { |
| 2724 | pr_err("arg is null"); |
| 2725 | return -EINVAL; |
| 2726 | } |
| 2727 | |
| 2728 | ret = copy_from_user(&req, argp, sizeof(req)); |
| 2729 | if (ret) { |
| 2730 | pr_err("copy_from_user failed"); |
| 2731 | return ret; |
| 2732 | } |
| 2733 | |
| 2734 | ret = scm_call(SCM_SVC_ES, SCM_SAVE_PARTITION_HASH_ID, |
| 2735 | (void *) &req, sizeof(req), NULL, 0); |
| 2736 | if (ret) { |
Hariprasad Dhalinarasimha | 682d1c3 | 2013-05-19 21:22:10 -0700 | [diff] [blame] | 2737 | pr_err("qseecom_scm_call failed"); |
Amir Samuelov | d1fc741 | 2013-03-10 16:56:13 +0200 | [diff] [blame] | 2738 | return ret; |
| 2739 | } |
| 2740 | |
| 2741 | return 0; |
| 2742 | } |
| 2743 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2744 | static long qseecom_ioctl(struct file *file, unsigned cmd, |
| 2745 | unsigned long arg) |
| 2746 | { |
| 2747 | int ret = 0; |
| 2748 | struct qseecom_dev_handle *data = file->private_data; |
| 2749 | void __user *argp = (void __user *) arg; |
| 2750 | |
AnilKumar Chimata | 11e1f52 | 2013-07-23 06:02:23 +0530 | [diff] [blame] | 2751 | if (!data) { |
| 2752 | pr_err("Invalid/uninitialized device handle\n"); |
| 2753 | return -EINVAL; |
| 2754 | } |
| 2755 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2756 | if (data->abort) { |
| 2757 | pr_err("Aborting qseecom driver\n"); |
| 2758 | return -ENODEV; |
| 2759 | } |
| 2760 | |
| 2761 | switch (cmd) { |
| 2762 | case QSEECOM_IOCTL_REGISTER_LISTENER_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 2763 | if (data->type != QSEECOM_GENERIC) { |
| 2764 | pr_err("reg lstnr req: invalid handle (%d)\n", |
| 2765 | data->type); |
| 2766 | ret = -EINVAL; |
| 2767 | break; |
| 2768 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2769 | pr_debug("ioctl register_listener_req()\n"); |
| 2770 | atomic_inc(&data->ioctl_count); |
Hariprasad Dhalinarasimha | 492530f | 2013-08-19 12:45:18 -0700 | [diff] [blame] | 2771 | data->type = QSEECOM_LISTENER_SERVICE; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2772 | ret = qseecom_register_listener(data, argp); |
| 2773 | atomic_dec(&data->ioctl_count); |
| 2774 | wake_up_all(&data->abort_wq); |
| 2775 | if (ret) |
| 2776 | pr_err("failed qseecom_register_listener: %d\n", ret); |
| 2777 | break; |
| 2778 | } |
| 2779 | case QSEECOM_IOCTL_UNREGISTER_LISTENER_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 2780 | if ((data->listener.id == 0) || |
| 2781 | (data->type != QSEECOM_LISTENER_SERVICE)) { |
| 2782 | pr_err("unreg lstnr req: invalid handle (%d) lid(%d)\n", |
| 2783 | data->type, data->listener.id); |
| 2784 | ret = -EINVAL; |
| 2785 | break; |
| 2786 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2787 | pr_debug("ioctl unregister_listener_req()\n"); |
| 2788 | atomic_inc(&data->ioctl_count); |
| 2789 | ret = qseecom_unregister_listener(data); |
| 2790 | atomic_dec(&data->ioctl_count); |
| 2791 | wake_up_all(&data->abort_wq); |
| 2792 | if (ret) |
| 2793 | pr_err("failed qseecom_unregister_listener: %d\n", ret); |
| 2794 | break; |
| 2795 | } |
| 2796 | case QSEECOM_IOCTL_SEND_CMD_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 2797 | if ((data->client.app_id == 0) || |
| 2798 | (data->type != QSEECOM_CLIENT_APP)) { |
| 2799 | pr_err("send cmd req: invalid handle (%d) app_id(%d)\n", |
| 2800 | data->type, data->client.app_id); |
| 2801 | ret = -EINVAL; |
| 2802 | break; |
| 2803 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2804 | /* Only one client allowed here at a time */ |
Ramesh Masavarapu | d861011 | 2012-06-26 15:32:52 -0700 | [diff] [blame] | 2805 | mutex_lock(&app_access_lock); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2806 | atomic_inc(&data->ioctl_count); |
| 2807 | ret = qseecom_send_cmd(data, argp); |
| 2808 | atomic_dec(&data->ioctl_count); |
| 2809 | wake_up_all(&data->abort_wq); |
Ramesh Masavarapu | d861011 | 2012-06-26 15:32:52 -0700 | [diff] [blame] | 2810 | mutex_unlock(&app_access_lock); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2811 | if (ret) |
| 2812 | pr_err("failed qseecom_send_cmd: %d\n", ret); |
| 2813 | break; |
| 2814 | } |
| 2815 | case QSEECOM_IOCTL_SEND_MODFD_CMD_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 2816 | if ((data->client.app_id == 0) || |
| 2817 | (data->type != QSEECOM_CLIENT_APP)) { |
| 2818 | pr_err("send mdfd cmd: invalid handle (%d) appid(%d)\n", |
| 2819 | data->type, data->client.app_id); |
| 2820 | ret = -EINVAL; |
| 2821 | break; |
| 2822 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2823 | /* Only one client allowed here at a time */ |
Ramesh Masavarapu | d861011 | 2012-06-26 15:32:52 -0700 | [diff] [blame] | 2824 | mutex_lock(&app_access_lock); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2825 | atomic_inc(&data->ioctl_count); |
| 2826 | ret = qseecom_send_modfd_cmd(data, argp); |
| 2827 | atomic_dec(&data->ioctl_count); |
| 2828 | wake_up_all(&data->abort_wq); |
Ramesh Masavarapu | d861011 | 2012-06-26 15:32:52 -0700 | [diff] [blame] | 2829 | mutex_unlock(&app_access_lock); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2830 | if (ret) |
| 2831 | pr_err("failed qseecom_send_cmd: %d\n", ret); |
| 2832 | break; |
| 2833 | } |
| 2834 | case QSEECOM_IOCTL_RECEIVE_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 2835 | if ((data->listener.id == 0) || |
| 2836 | (data->type != QSEECOM_LISTENER_SERVICE)) { |
| 2837 | pr_err("receive req: invalid handle (%d), lid(%d)\n", |
| 2838 | data->type, data->listener.id); |
| 2839 | ret = -EINVAL; |
| 2840 | break; |
| 2841 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2842 | atomic_inc(&data->ioctl_count); |
| 2843 | ret = qseecom_receive_req(data); |
| 2844 | atomic_dec(&data->ioctl_count); |
| 2845 | wake_up_all(&data->abort_wq); |
| 2846 | if (ret) |
| 2847 | pr_err("failed qseecom_receive_req: %d\n", ret); |
| 2848 | break; |
| 2849 | } |
| 2850 | case QSEECOM_IOCTL_SEND_RESP_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 2851 | if ((data->listener.id == 0) || |
| 2852 | (data->type != QSEECOM_LISTENER_SERVICE)) { |
| 2853 | pr_err("send resp req: invalid handle (%d), lid(%d)\n", |
| 2854 | data->type, data->listener.id); |
| 2855 | ret = -EINVAL; |
| 2856 | break; |
| 2857 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2858 | atomic_inc(&data->ioctl_count); |
| 2859 | ret = qseecom_send_resp(); |
| 2860 | atomic_dec(&data->ioctl_count); |
| 2861 | wake_up_all(&data->abort_wq); |
| 2862 | if (ret) |
| 2863 | pr_err("failed qseecom_send_resp: %d\n", ret); |
| 2864 | break; |
| 2865 | } |
| 2866 | case QSEECOM_IOCTL_SET_MEM_PARAM_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 2867 | if ((data->type != QSEECOM_CLIENT_APP) && |
| 2868 | (data->type != QSEECOM_GENERIC) && |
| 2869 | (data->type != QSEECOM_SECURE_SERVICE)) { |
| 2870 | pr_err("set mem param req: invalid handle (%d)\n", |
| 2871 | data->type); |
| 2872 | ret = -EINVAL; |
| 2873 | break; |
| 2874 | } |
Hariprasad Dhalinarasimha | 492530f | 2013-08-19 12:45:18 -0700 | [diff] [blame] | 2875 | pr_debug("SET_MEM_PARAM: qseecom addr = 0x%x\n", (u32)data); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2876 | ret = qseecom_set_client_mem_param(data, argp); |
| 2877 | if (ret) |
| 2878 | pr_err("failed Qqseecom_set_mem_param request: %d\n", |
| 2879 | ret); |
| 2880 | break; |
| 2881 | } |
| 2882 | case QSEECOM_IOCTL_LOAD_APP_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 2883 | if ((data->type != QSEECOM_GENERIC) && |
| 2884 | (data->type != QSEECOM_CLIENT_APP)) { |
| 2885 | pr_err("load app req: invalid handle (%d)\n", |
| 2886 | data->type); |
| 2887 | ret = -EINVAL; |
| 2888 | break; |
| 2889 | } |
Hariprasad Dhalinarasimha | 492530f | 2013-08-19 12:45:18 -0700 | [diff] [blame] | 2890 | data->type = QSEECOM_CLIENT_APP; |
| 2891 | pr_debug("LOAD_APP_REQ: qseecom_addr = 0x%x\n", (u32)data); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2892 | mutex_lock(&app_access_lock); |
| 2893 | atomic_inc(&data->ioctl_count); |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 2894 | if (qseecom.qsee_version > QSEEE_VERSION_00) { |
| 2895 | if (qseecom.commonlib_loaded == false) { |
Mona Hossain | 9498f5e | 2013-01-23 18:08:45 -0800 | [diff] [blame] | 2896 | ret = qseecom_load_commonlib_image(data); |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 2897 | if (ret == 0) |
| 2898 | qseecom.commonlib_loaded = true; |
| 2899 | } |
| 2900 | } |
| 2901 | if (ret == 0) |
| 2902 | ret = qseecom_load_app(data, argp); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2903 | atomic_dec(&data->ioctl_count); |
| 2904 | mutex_unlock(&app_access_lock); |
| 2905 | if (ret) |
| 2906 | pr_err("failed load_app request: %d\n", ret); |
| 2907 | break; |
| 2908 | } |
| 2909 | case QSEECOM_IOCTL_UNLOAD_APP_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 2910 | if ((data->client.app_id == 0) || |
| 2911 | (data->type != QSEECOM_CLIENT_APP)) { |
| 2912 | pr_err("unload app req:invalid handle(%d) app_id(%d)\n", |
| 2913 | data->type, data->client.app_id); |
| 2914 | ret = -EINVAL; |
| 2915 | break; |
| 2916 | } |
Hariprasad Dhalinarasimha | 492530f | 2013-08-19 12:45:18 -0700 | [diff] [blame] | 2917 | pr_debug("UNLOAD_APP: qseecom_addr = 0x%x\n", (u32)data); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2918 | mutex_lock(&app_access_lock); |
| 2919 | atomic_inc(&data->ioctl_count); |
| 2920 | ret = qseecom_unload_app(data); |
| 2921 | atomic_dec(&data->ioctl_count); |
| 2922 | mutex_unlock(&app_access_lock); |
| 2923 | if (ret) |
| 2924 | pr_err("failed unload_app request: %d\n", ret); |
| 2925 | break; |
| 2926 | } |
| 2927 | case QSEECOM_IOCTL_GET_QSEOS_VERSION_REQ: { |
| 2928 | atomic_inc(&data->ioctl_count); |
| 2929 | ret = qseecom_get_qseos_version(data, argp); |
| 2930 | if (ret) |
| 2931 | pr_err("qseecom_get_qseos_version: %d\n", ret); |
| 2932 | atomic_dec(&data->ioctl_count); |
| 2933 | break; |
| 2934 | } |
| 2935 | case QSEECOM_IOCTL_PERF_ENABLE_REQ:{ |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 2936 | if ((data->type != QSEECOM_GENERIC) && |
| 2937 | (data->type != QSEECOM_CLIENT_APP)) { |
| 2938 | pr_err("perf enable req: invalid handle (%d)\n", |
| 2939 | data->type); |
| 2940 | ret = -EINVAL; |
| 2941 | break; |
| 2942 | } |
| 2943 | if ((data->type == QSEECOM_CLIENT_APP) && |
| 2944 | (data->client.app_id == 0)) { |
| 2945 | pr_err("perf enable req:invalid handle(%d) appid(%d)\n", |
| 2946 | data->type, data->client.app_id); |
| 2947 | ret = -EINVAL; |
| 2948 | break; |
| 2949 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2950 | atomic_inc(&data->ioctl_count); |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 2951 | ret = qsee_vote_for_clock(data, CLK_DFAB); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2952 | if (ret) |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 2953 | pr_err("Failed to vote for DFAB clock%d\n", ret); |
Mona Hossain | 8e2d73a | 2013-01-10 04:30:04 -0800 | [diff] [blame] | 2954 | ret = qsee_vote_for_clock(data, CLK_SFPB); |
| 2955 | if (ret) |
| 2956 | pr_err("Failed to vote for SFPB clock%d\n", ret); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2957 | atomic_dec(&data->ioctl_count); |
| 2958 | break; |
| 2959 | } |
| 2960 | case QSEECOM_IOCTL_PERF_DISABLE_REQ:{ |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 2961 | if ((data->type != QSEECOM_SECURE_SERVICE) && |
| 2962 | (data->type != QSEECOM_CLIENT_APP)) { |
| 2963 | pr_err("perf disable req: invalid handle (%d)\n", |
| 2964 | data->type); |
| 2965 | ret = -EINVAL; |
| 2966 | break; |
| 2967 | } |
| 2968 | if ((data->type == QSEECOM_CLIENT_APP) && |
| 2969 | (data->client.app_id == 0)) { |
| 2970 | pr_err("perf disable: invalid handle (%d)app_id(%d)\n", |
| 2971 | data->type, data->client.app_id); |
| 2972 | ret = -EINVAL; |
| 2973 | break; |
| 2974 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2975 | atomic_inc(&data->ioctl_count); |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 2976 | qsee_disable_clock_vote(data, CLK_DFAB); |
| 2977 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 2978 | atomic_dec(&data->ioctl_count); |
| 2979 | break; |
| 2980 | } |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2981 | case QSEECOM_IOCTL_LOAD_EXTERNAL_ELF_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 2982 | if (data->type != QSEECOM_GENERIC) { |
| 2983 | pr_err("load ext elf req: invalid client handle (%d)\n", |
| 2984 | data->type); |
| 2985 | ret = -EINVAL; |
| 2986 | break; |
| 2987 | } |
Hariprasad Dhalinarasimha | 492530f | 2013-08-19 12:45:18 -0700 | [diff] [blame] | 2988 | data->type = QSEECOM_UNAVAILABLE_CLIENT_APP; |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2989 | data->released = true; |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 2990 | mutex_lock(&app_access_lock); |
| 2991 | atomic_inc(&data->ioctl_count); |
| 2992 | ret = qseecom_load_external_elf(data, argp); |
| 2993 | atomic_dec(&data->ioctl_count); |
| 2994 | mutex_unlock(&app_access_lock); |
| 2995 | if (ret) |
| 2996 | pr_err("failed load_external_elf request: %d\n", ret); |
| 2997 | break; |
| 2998 | } |
| 2999 | case QSEECOM_IOCTL_UNLOAD_EXTERNAL_ELF_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 3000 | if (data->type != QSEECOM_UNAVAILABLE_CLIENT_APP) { |
| 3001 | pr_err("unload ext elf req: invalid handle (%d)\n", |
| 3002 | data->type); |
| 3003 | ret = -EINVAL; |
| 3004 | break; |
| 3005 | } |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 3006 | data->released = true; |
Mona Hossain | 5ab9d77 | 2012-04-11 21:00:40 -0700 | [diff] [blame] | 3007 | mutex_lock(&app_access_lock); |
| 3008 | atomic_inc(&data->ioctl_count); |
| 3009 | ret = qseecom_unload_external_elf(data); |
| 3010 | atomic_dec(&data->ioctl_count); |
| 3011 | mutex_unlock(&app_access_lock); |
| 3012 | if (ret) |
| 3013 | pr_err("failed unload_app request: %d\n", ret); |
| 3014 | break; |
| 3015 | } |
Ramesh Masavarapu | 1ee4ac8 | 2012-06-22 15:38:34 -0700 | [diff] [blame] | 3016 | case QSEECOM_IOCTL_APP_LOADED_QUERY_REQ: { |
Hariprasad Dhalinarasimha | 492530f | 2013-08-19 12:45:18 -0700 | [diff] [blame] | 3017 | data->type = QSEECOM_CLIENT_APP; |
Ramesh Masavarapu | 1ee4ac8 | 2012-06-22 15:38:34 -0700 | [diff] [blame] | 3018 | mutex_lock(&app_access_lock); |
| 3019 | atomic_inc(&data->ioctl_count); |
Hariprasad Dhalinarasimha | 492530f | 2013-08-19 12:45:18 -0700 | [diff] [blame] | 3020 | pr_debug("APP_LOAD_QUERY: qseecom_addr = 0x%x\n", (u32)data); |
Ramesh Masavarapu | 1ee4ac8 | 2012-06-22 15:38:34 -0700 | [diff] [blame] | 3021 | ret = qseecom_query_app_loaded(data, argp); |
| 3022 | atomic_dec(&data->ioctl_count); |
| 3023 | mutex_unlock(&app_access_lock); |
| 3024 | break; |
| 3025 | } |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 3026 | case QSEECOM_IOCTL_SEND_CMD_SERVICE_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 3027 | if (data->type != QSEECOM_GENERIC) { |
| 3028 | pr_err("send cmd svc req: invalid handle (%d)\n", |
| 3029 | data->type); |
| 3030 | ret = -EINVAL; |
| 3031 | break; |
| 3032 | } |
Hariprasad Dhalinarasimha | 492530f | 2013-08-19 12:45:18 -0700 | [diff] [blame] | 3033 | data->type = QSEECOM_SECURE_SERVICE; |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 3034 | if (qseecom.qsee_version < QSEE_VERSION_03) { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 3035 | pr_err("SEND_CMD_SERVICE_REQ: Invalid qsee ver %u\n", |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 3036 | qseecom.qsee_version); |
| 3037 | return -EINVAL; |
| 3038 | } |
| 3039 | mutex_lock(&app_access_lock); |
| 3040 | atomic_inc(&data->ioctl_count); |
| 3041 | ret = qseecom_send_service_cmd(data, argp); |
| 3042 | atomic_dec(&data->ioctl_count); |
| 3043 | mutex_unlock(&app_access_lock); |
| 3044 | break; |
| 3045 | } |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 3046 | case QSEECOM_IOCTL_CREATE_KEY_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 3047 | if (data->type != QSEECOM_GENERIC) { |
| 3048 | pr_err("create key req: invalid handle (%d)\n", |
| 3049 | data->type); |
| 3050 | ret = -EINVAL; |
| 3051 | break; |
| 3052 | } |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 3053 | if (qseecom.qsee_version < QSEE_VERSION_05) { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 3054 | pr_err("Create Key feature unsupported: qsee ver %u\n", |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 3055 | qseecom.qsee_version); |
| 3056 | return -EINVAL; |
| 3057 | } |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 3058 | data->released = true; |
| 3059 | mutex_lock(&app_access_lock); |
| 3060 | atomic_inc(&data->ioctl_count); |
| 3061 | ret = qseecom_create_key(data, argp); |
| 3062 | if (ret) |
| 3063 | pr_err("failed to create encryption key: %d\n", ret); |
| 3064 | |
| 3065 | atomic_dec(&data->ioctl_count); |
| 3066 | mutex_unlock(&app_access_lock); |
| 3067 | break; |
| 3068 | } |
| 3069 | case QSEECOM_IOCTL_WIPE_KEY_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 3070 | if (data->type != QSEECOM_GENERIC) { |
| 3071 | pr_err("wipe key req: invalid handle (%d)\n", |
| 3072 | data->type); |
| 3073 | ret = -EINVAL; |
| 3074 | break; |
| 3075 | } |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 3076 | if (qseecom.qsee_version < QSEE_VERSION_05) { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 3077 | pr_err("Wipe Key feature unsupported in qsee ver %u\n", |
Zhen Kong | 336636e | 2013-04-15 11:04:54 -0700 | [diff] [blame] | 3078 | qseecom.qsee_version); |
| 3079 | return -EINVAL; |
| 3080 | } |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 3081 | data->released = true; |
| 3082 | mutex_lock(&app_access_lock); |
| 3083 | atomic_inc(&data->ioctl_count); |
| 3084 | ret = qseecom_wipe_key(data, argp); |
| 3085 | if (ret) |
| 3086 | pr_err("failed to wipe encryption key: %d\n", ret); |
| 3087 | atomic_dec(&data->ioctl_count); |
| 3088 | mutex_unlock(&app_access_lock); |
| 3089 | break; |
| 3090 | } |
Amir Samuelov | d1fc741 | 2013-03-10 16:56:13 +0200 | [diff] [blame] | 3091 | case QSEECOM_IOCTL_SAVE_PARTITION_HASH_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 3092 | if (data->type != QSEECOM_GENERIC) { |
| 3093 | pr_err("save part hash req: invalid handle (%d)\n", |
| 3094 | data->type); |
| 3095 | ret = -EINVAL; |
| 3096 | break; |
| 3097 | } |
Amir Samuelov | d1fc741 | 2013-03-10 16:56:13 +0200 | [diff] [blame] | 3098 | data->released = true; |
| 3099 | mutex_lock(&app_access_lock); |
| 3100 | atomic_inc(&data->ioctl_count); |
| 3101 | ret = qseecom_save_partition_hash(argp); |
| 3102 | atomic_dec(&data->ioctl_count); |
| 3103 | mutex_unlock(&app_access_lock); |
| 3104 | break; |
| 3105 | } |
| 3106 | case QSEECOM_IOCTL_IS_ES_ACTIVATED_REQ: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 3107 | if (data->type != QSEECOM_GENERIC) { |
| 3108 | pr_err("ES activated req: invalid handle (%d)\n", |
| 3109 | data->type); |
| 3110 | ret = -EINVAL; |
| 3111 | break; |
| 3112 | } |
Amir Samuelov | d1fc741 | 2013-03-10 16:56:13 +0200 | [diff] [blame] | 3113 | data->released = true; |
| 3114 | mutex_lock(&app_access_lock); |
| 3115 | atomic_inc(&data->ioctl_count); |
| 3116 | ret = qseecom_is_es_activated(argp); |
| 3117 | atomic_dec(&data->ioctl_count); |
| 3118 | mutex_unlock(&app_access_lock); |
| 3119 | break; |
| 3120 | } |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 3121 | case QSEECOM_IOCTL_SEND_MODFD_RESP: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 3122 | if ((data->listener.id == 0) || |
| 3123 | (data->type != QSEECOM_LISTENER_SERVICE)) { |
| 3124 | pr_err("receive req: invalid handle (%d), lid(%d)\n", |
| 3125 | data->type, data->listener.id); |
| 3126 | ret = -EINVAL; |
| 3127 | break; |
| 3128 | } |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 3129 | /* Only one client allowed here at a time */ |
| 3130 | atomic_inc(&data->ioctl_count); |
| 3131 | ret = qseecom_send_modfd_resp(data, argp); |
| 3132 | atomic_dec(&data->ioctl_count); |
| 3133 | wake_up_all(&data->abort_wq); |
| 3134 | if (ret) |
| 3135 | pr_err("failed qseecom_send_mod_resp: %d\n", ret); |
| 3136 | break; |
| 3137 | } |
| 3138 | case QSEECOM_IOCTL_UNPROTECT_BUF: { |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 3139 | if ((data->listener.id == 0) || |
| 3140 | (data->type != QSEECOM_LISTENER_SERVICE)) { |
| 3141 | pr_err("receive req: invalid handle (%d), lid(%d)\n", |
| 3142 | data->type, data->listener.id); |
| 3143 | ret = -EINVAL; |
| 3144 | break; |
| 3145 | } |
Hariprasad Dhalinarasimha | 23fdcd9 | 2013-05-01 14:51:09 -0700 | [diff] [blame] | 3146 | /* Only one client allowed here at a time */ |
| 3147 | atomic_inc(&data->ioctl_count); |
| 3148 | ret = qseecom_unprotect_buffer(argp); |
| 3149 | atomic_dec(&data->ioctl_count); |
| 3150 | wake_up_all(&data->abort_wq); |
| 3151 | if (ret) |
| 3152 | pr_err("failed qseecom_unprotect: %d\n", ret); |
| 3153 | break; |
| 3154 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3155 | default: |
Mona Hossain | a1124de | 2013-10-01 13:41:09 -0700 | [diff] [blame] | 3156 | pr_err("Invalid IOCTL: %d\n", cmd); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3157 | return -EINVAL; |
| 3158 | } |
| 3159 | return ret; |
| 3160 | } |
| 3161 | |
| 3162 | static int qseecom_open(struct inode *inode, struct file *file) |
| 3163 | { |
| 3164 | int ret = 0; |
| 3165 | struct qseecom_dev_handle *data; |
| 3166 | |
| 3167 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
| 3168 | if (!data) { |
| 3169 | pr_err("kmalloc failed\n"); |
| 3170 | return -ENOMEM; |
| 3171 | } |
| 3172 | file->private_data = data; |
| 3173 | data->abort = 0; |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 3174 | data->type = QSEECOM_GENERIC; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3175 | data->released = false; |
| 3176 | init_waitqueue_head(&data->abort_wq); |
| 3177 | atomic_set(&data->ioctl_count, 0); |
Mona Hossain | d4613de | 2013-05-15 16:49:29 -0700 | [diff] [blame] | 3178 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3179 | return ret; |
| 3180 | } |
| 3181 | |
| 3182 | static int qseecom_release(struct inode *inode, struct file *file) |
| 3183 | { |
| 3184 | struct qseecom_dev_handle *data = file->private_data; |
| 3185 | int ret = 0; |
| 3186 | |
| 3187 | if (data->released == false) { |
Hariprasad Dhalinarasimha | 492530f | 2013-08-19 12:45:18 -0700 | [diff] [blame] | 3188 | pr_warn("data: released = false, type = %d, data = 0x%x\n", |
| 3189 | data->type, (u32)data); |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 3190 | switch (data->type) { |
| 3191 | case QSEECOM_LISTENER_SERVICE: |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3192 | ret = qseecom_unregister_listener(data); |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 3193 | break; |
| 3194 | case QSEECOM_CLIENT_APP: |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3195 | ret = qseecom_unload_app(data); |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 3196 | break; |
| 3197 | case QSEECOM_SECURE_SERVICE: |
Mona Hossain | d4b70573 | 2013-04-05 21:56:28 -0700 | [diff] [blame] | 3198 | case QSEECOM_GENERIC: |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 3199 | ret = qseecom_unmap_ion_allocated_memory(data); |
Hariprasad Dhalinarasimha | 492530f | 2013-08-19 12:45:18 -0700 | [diff] [blame] | 3200 | if (ret) |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 3201 | pr_err("Close failed\n"); |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 3202 | break; |
AnilKumar Chimata | f732bbe | 2013-07-24 00:44:09 +0530 | [diff] [blame] | 3203 | case QSEECOM_UNAVAILABLE_CLIENT_APP: |
| 3204 | break; |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 3205 | default: |
| 3206 | pr_err("Unsupported clnt_handle_type %d", |
| 3207 | data->type); |
| 3208 | break; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3209 | } |
| 3210 | } |
Hariprasad Dhalinarasimha | adf27a8 | 2013-02-11 15:07:59 -0800 | [diff] [blame] | 3211 | |
Mona Hossain | c9c83c7 | 2013-04-11 12:43:48 -0700 | [diff] [blame] | 3212 | if (data->fast_load_enabled == true) |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 3213 | qsee_disable_clock_vote(data, CLK_SFPB); |
Mona Hossain | c9c83c7 | 2013-04-11 12:43:48 -0700 | [diff] [blame] | 3214 | if (data->perf_enabled == true) |
Mona Hossain | 04d3fac | 2012-12-03 10:10:37 -0800 | [diff] [blame] | 3215 | qsee_disable_clock_vote(data, CLK_DFAB); |
| 3216 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3217 | kfree(data); |
Ramesh Masavarapu | a1bc0e4 | 2012-03-05 07:42:48 -0800 | [diff] [blame] | 3218 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3219 | return ret; |
| 3220 | } |
| 3221 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3222 | static const struct file_operations qseecom_fops = { |
| 3223 | .owner = THIS_MODULE, |
| 3224 | .unlocked_ioctl = qseecom_ioctl, |
| 3225 | .open = qseecom_open, |
| 3226 | .release = qseecom_release |
| 3227 | }; |
| 3228 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3229 | static int __qseecom_init_clk(enum qseecom_ce_hw_instance ce) |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3230 | { |
| 3231 | int rc = 0; |
| 3232 | struct device *pdev; |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3233 | struct qseecom_clk *qclk; |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3234 | char *core_clk_src = NULL; |
| 3235 | char *core_clk = NULL; |
| 3236 | char *iface_clk = NULL; |
| 3237 | char *bus_clk = NULL; |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3238 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3239 | switch (ce) { |
| 3240 | case CLK_QSEE: { |
| 3241 | core_clk_src = "core_clk_src"; |
| 3242 | core_clk = "core_clk"; |
| 3243 | iface_clk = "iface_clk"; |
| 3244 | bus_clk = "bus_clk"; |
| 3245 | qclk = &qseecom.qsee; |
| 3246 | qclk->instance = CLK_QSEE; |
| 3247 | break; |
| 3248 | }; |
| 3249 | case CLK_CE_DRV: { |
| 3250 | core_clk_src = "ce_drv_core_clk_src"; |
| 3251 | core_clk = "ce_drv_core_clk"; |
| 3252 | iface_clk = "ce_drv_iface_clk"; |
| 3253 | bus_clk = "ce_drv_bus_clk"; |
| 3254 | qclk = &qseecom.ce_drv; |
| 3255 | qclk->instance = CLK_CE_DRV; |
| 3256 | break; |
| 3257 | }; |
| 3258 | default: |
| 3259 | pr_err("Invalid ce hw instance: %d!\n", ce); |
| 3260 | return -EIO; |
| 3261 | } |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3262 | pdev = qseecom.pdev; |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3263 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3264 | /* Get CE3 src core clk. */ |
| 3265 | qclk->ce_core_src_clk = clk_get(pdev, core_clk_src); |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3266 | if (!IS_ERR(qclk->ce_core_src_clk)) { |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 3267 | /* Set the core src clk @100Mhz */ |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3268 | rc = clk_set_rate(qclk->ce_core_src_clk, QSEE_CE_CLK_100MHZ); |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3269 | if (rc) { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3270 | clk_put(qclk->ce_core_src_clk); |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3271 | pr_err("Unable to set the core src clk @100Mhz.\n"); |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 3272 | return -EIO; |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3273 | } |
| 3274 | } else { |
| 3275 | pr_warn("Unable to get CE core src clk, set to NULL\n"); |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3276 | qclk->ce_core_src_clk = NULL; |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3277 | } |
| 3278 | |
| 3279 | /* Get CE core clk */ |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3280 | qclk->ce_core_clk = clk_get(pdev, core_clk); |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3281 | if (IS_ERR(qclk->ce_core_clk)) { |
| 3282 | rc = PTR_ERR(qclk->ce_core_clk); |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3283 | pr_err("Unable to get CE core clk\n"); |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3284 | if (qclk->ce_core_src_clk != NULL) |
| 3285 | clk_put(qclk->ce_core_src_clk); |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 3286 | return -EIO; |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3287 | } |
| 3288 | |
| 3289 | /* Get CE Interface clk */ |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3290 | qclk->ce_clk = clk_get(pdev, iface_clk); |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3291 | if (IS_ERR(qclk->ce_clk)) { |
| 3292 | rc = PTR_ERR(qclk->ce_clk); |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3293 | pr_err("Unable to get CE interface clk\n"); |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3294 | if (qclk->ce_core_src_clk != NULL) |
| 3295 | clk_put(qclk->ce_core_src_clk); |
| 3296 | clk_put(qclk->ce_core_clk); |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 3297 | return -EIO; |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3298 | } |
| 3299 | |
| 3300 | /* Get CE AXI clk */ |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3301 | qclk->ce_bus_clk = clk_get(pdev, bus_clk); |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3302 | if (IS_ERR(qclk->ce_bus_clk)) { |
| 3303 | rc = PTR_ERR(qclk->ce_bus_clk); |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3304 | pr_err("Unable to get CE BUS interface clk\n"); |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3305 | if (qclk->ce_core_src_clk != NULL) |
| 3306 | clk_put(qclk->ce_core_src_clk); |
| 3307 | clk_put(qclk->ce_core_clk); |
| 3308 | clk_put(qclk->ce_clk); |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 3309 | return -EIO; |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3310 | } |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3311 | return rc; |
| 3312 | } |
| 3313 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3314 | static void __qseecom_deinit_clk(enum qseecom_ce_hw_instance ce) |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3315 | { |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3316 | struct qseecom_clk *qclk; |
| 3317 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3318 | if (ce == CLK_QSEE) |
| 3319 | qclk = &qseecom.qsee; |
| 3320 | else |
| 3321 | qclk = &qseecom.ce_drv; |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3322 | |
| 3323 | if (qclk->ce_clk != NULL) { |
| 3324 | clk_put(qclk->ce_clk); |
| 3325 | qclk->ce_clk = NULL; |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 3326 | } |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3327 | if (qclk->ce_core_clk != NULL) { |
| 3328 | clk_put(qclk->ce_core_clk); |
| 3329 | qclk->ce_clk = NULL; |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 3330 | } |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3331 | if (qclk->ce_bus_clk != NULL) { |
| 3332 | clk_put(qclk->ce_bus_clk); |
| 3333 | qclk->ce_clk = NULL; |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 3334 | } |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3335 | if (qclk->ce_core_src_clk != NULL) { |
| 3336 | clk_put(qclk->ce_core_src_clk); |
| 3337 | qclk->ce_core_src_clk = NULL; |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 3338 | } |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3339 | } |
| 3340 | |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 3341 | static int __devinit qseecom_probe(struct platform_device *pdev) |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3342 | { |
| 3343 | int rc; |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 3344 | int ret = 0; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3345 | struct device *class_dev; |
| 3346 | char qsee_not_legacy = 0; |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 3347 | struct msm_bus_scale_pdata *qseecom_platform_support = NULL; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3348 | uint32_t system_call_id = QSEOS_CHECK_VERSION_CMD; |
| 3349 | |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3350 | qseecom.qsee_bw_count = 0; |
| 3351 | qseecom.qsee_perf_client = 0; |
| 3352 | qseecom.qsee_sfpb_bw_count = 0; |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 3353 | |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3354 | qseecom.qsee.ce_core_clk = NULL; |
| 3355 | qseecom.qsee.ce_clk = NULL; |
| 3356 | qseecom.qsee.ce_core_src_clk = NULL; |
| 3357 | qseecom.qsee.ce_bus_clk = NULL; |
Ramesh Masavarapu | e640e84 | 2012-04-03 11:21:54 -0700 | [diff] [blame] | 3358 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3359 | qseecom.ce_drv.ce_core_clk = NULL; |
| 3360 | qseecom.ce_drv.ce_clk = NULL; |
| 3361 | qseecom.ce_drv.ce_core_src_clk = NULL; |
| 3362 | qseecom.ce_drv.ce_bus_clk = NULL; |
| 3363 | |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3364 | rc = alloc_chrdev_region(&qseecom_device_no, 0, 1, QSEECOM_DEV); |
| 3365 | if (rc < 0) { |
| 3366 | pr_err("alloc_chrdev_region failed %d\n", rc); |
| 3367 | return rc; |
| 3368 | } |
| 3369 | |
| 3370 | driver_class = class_create(THIS_MODULE, QSEECOM_DEV); |
| 3371 | if (IS_ERR(driver_class)) { |
| 3372 | rc = -ENOMEM; |
| 3373 | pr_err("class_create failed %d\n", rc); |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3374 | goto exit_unreg_chrdev_region; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3375 | } |
| 3376 | |
| 3377 | class_dev = device_create(driver_class, NULL, qseecom_device_no, NULL, |
| 3378 | QSEECOM_DEV); |
| 3379 | if (!class_dev) { |
| 3380 | pr_err("class_device_create failed %d\n", rc); |
| 3381 | rc = -ENOMEM; |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3382 | goto exit_destroy_class; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3383 | } |
| 3384 | |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3385 | cdev_init(&qseecom.cdev, &qseecom_fops); |
| 3386 | qseecom.cdev.owner = THIS_MODULE; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3387 | |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3388 | rc = cdev_add(&qseecom.cdev, MKDEV(MAJOR(qseecom_device_no), 0), 1); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3389 | if (rc < 0) { |
| 3390 | pr_err("cdev_add failed %d\n", rc); |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3391 | goto exit_destroy_device; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3392 | } |
| 3393 | |
| 3394 | INIT_LIST_HEAD(&qseecom.registered_listener_list_head); |
| 3395 | spin_lock_init(&qseecom.registered_listener_list_lock); |
| 3396 | INIT_LIST_HEAD(&qseecom.registered_app_list_head); |
| 3397 | spin_lock_init(&qseecom.registered_app_list_lock); |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 3398 | INIT_LIST_HEAD(&qseecom.registered_kclient_list_head); |
| 3399 | spin_lock_init(&qseecom.registered_kclient_list_lock); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3400 | init_waitqueue_head(&qseecom.send_resp_wq); |
| 3401 | qseecom.send_resp_flag = 0; |
| 3402 | |
| 3403 | rc = scm_call(6, 1, &system_call_id, sizeof(system_call_id), |
| 3404 | &qsee_not_legacy, sizeof(qsee_not_legacy)); |
| 3405 | if (rc) { |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 3406 | pr_err("Failed to retrieve QSEOS version information %d\n", rc); |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3407 | goto exit_del_cdev; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3408 | } |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 3409 | if (qsee_not_legacy) { |
| 3410 | uint32_t feature = 10; |
| 3411 | |
| 3412 | qseecom.qsee_version = QSEEE_VERSION_00; |
| 3413 | rc = scm_call(6, 3, &feature, sizeof(feature), |
| 3414 | &qseecom.qsee_version, sizeof(qseecom.qsee_version)); |
| 3415 | if (rc) { |
| 3416 | pr_err("Failed to get QSEE version info %d\n", rc); |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3417 | goto exit_del_cdev; |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 3418 | } |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3419 | qseecom.qseos_version = QSEOS_VERSION_14; |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 3420 | } else { |
Mona Hossain | 9c1f6c5 | 2013-05-19 21:27:26 -0700 | [diff] [blame] | 3421 | pr_err("QSEE legacy version is not supported:"); |
| 3422 | pr_err("Support for TZ1.3 and earlier is deprecated\n"); |
| 3423 | rc = -EINVAL; |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3424 | goto exit_del_cdev; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3425 | } |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 3426 | qseecom.commonlib_loaded = false; |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3427 | qseecom.pdev = class_dev; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3428 | /* Create ION msm client */ |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 3429 | qseecom.ion_clnt = msm_ion_client_create(-1, "qseecom-kernel"); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3430 | if (qseecom.ion_clnt == NULL) { |
| 3431 | pr_err("Ion client cannot be created\n"); |
| 3432 | rc = -ENOMEM; |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3433 | goto exit_del_cdev; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3434 | } |
| 3435 | |
| 3436 | /* register client for bus scaling */ |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3437 | if (pdev->dev.of_node) { |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3438 | |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 3439 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 3440 | "qcom,disk-encrypt-pipe-pair", |
| 3441 | &qseecom.ce_info.disk_encrypt_pipe)) { |
| 3442 | pr_err("Fail to get disk-encrypt pipe pair information.\n"); |
| 3443 | qseecom.ce_info.disk_encrypt_pipe = 0xff; |
| 3444 | rc = -EINVAL; |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3445 | goto exit_destroy_ion_client; |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 3446 | } else { |
| 3447 | pr_warn("bam_pipe_pair=0x%x", |
| 3448 | qseecom.ce_info.disk_encrypt_pipe); |
| 3449 | } |
| 3450 | |
| 3451 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 3452 | "qcom,qsee-ce-hw-instance", |
| 3453 | &qseecom.ce_info.qsee_ce_hw_instance)) { |
| 3454 | pr_err("Fail to get qsee ce hw instance information.\n"); |
| 3455 | qseecom.ce_info.qsee_ce_hw_instance = 0xff; |
| 3456 | rc = -EINVAL; |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3457 | goto exit_destroy_ion_client; |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 3458 | } else { |
| 3459 | pr_warn("qsee-ce-hw-instance=0x%x", |
| 3460 | qseecom.ce_info.qsee_ce_hw_instance); |
| 3461 | } |
| 3462 | |
| 3463 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 3464 | "qcom,hlos-ce-hw-instance", |
| 3465 | &qseecom.ce_info.hlos_ce_hw_instance)) { |
| 3466 | pr_err("Fail to get hlos ce hw instance information.\n"); |
| 3467 | qseecom.ce_info.hlos_ce_hw_instance = 0xff; |
| 3468 | rc = -EINVAL; |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3469 | goto exit_destroy_ion_client; |
Mona Hossain | 4cf78a9 | 2013-02-14 12:06:41 -0800 | [diff] [blame] | 3470 | } else { |
| 3471 | pr_warn("hlos-ce-hw-instance=0x%x", |
| 3472 | qseecom.ce_info.hlos_ce_hw_instance); |
| 3473 | } |
| 3474 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3475 | qseecom.qsee.instance = qseecom.ce_info.qsee_ce_hw_instance; |
| 3476 | qseecom.ce_drv.instance = qseecom.ce_info.hlos_ce_hw_instance; |
| 3477 | |
| 3478 | ret = __qseecom_init_clk(CLK_QSEE); |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3479 | if (ret) |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3480 | goto exit_destroy_ion_client; |
Mona Hossain | 6311d57 | 2013-03-01 15:54:02 -0800 | [diff] [blame] | 3481 | |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3482 | if (qseecom.qsee.instance != qseecom.ce_drv.instance) { |
| 3483 | ret = __qseecom_init_clk(CLK_CE_DRV); |
| 3484 | if (ret) { |
| 3485 | __qseecom_deinit_clk(CLK_QSEE); |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3486 | goto exit_destroy_ion_client; |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3487 | } |
| 3488 | } else { |
| 3489 | struct qseecom_clk *qclk; |
| 3490 | |
| 3491 | qclk = &qseecom.qsee; |
| 3492 | qseecom.ce_drv.ce_core_clk = qclk->ce_core_clk; |
| 3493 | qseecom.ce_drv.ce_clk = qclk->ce_clk; |
| 3494 | qseecom.ce_drv.ce_core_src_clk = qclk->ce_core_src_clk; |
| 3495 | qseecom.ce_drv.ce_bus_clk = qclk->ce_bus_clk; |
| 3496 | } |
| 3497 | |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3498 | qseecom_platform_support = (struct msm_bus_scale_pdata *) |
| 3499 | msm_bus_cl_get_pdata(pdev); |
Mona Hossain | 5b76a62 | 2012-11-15 20:09:08 -0800 | [diff] [blame] | 3500 | if (qseecom.qsee_version >= (QSEE_VERSION_02)) { |
| 3501 | struct resource *resource = NULL; |
| 3502 | struct qsee_apps_region_info_ireq req; |
| 3503 | struct qseecom_command_scm_resp resp; |
| 3504 | |
| 3505 | resource = platform_get_resource_byname(pdev, |
| 3506 | IORESOURCE_MEM, "secapp-region"); |
| 3507 | if (resource) { |
| 3508 | req.qsee_cmd_id = QSEOS_APP_REGION_NOTIFICATION; |
| 3509 | req.addr = resource->start; |
| 3510 | req.size = resource_size(resource); |
| 3511 | pr_warn("secure app region addr=0x%x size=0x%x", |
| 3512 | req.addr, req.size); |
| 3513 | } else { |
| 3514 | pr_err("Fail to get secure app region info\n"); |
| 3515 | rc = -EINVAL; |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3516 | goto exit_destroy_ion_client; |
Mona Hossain | 5b76a62 | 2012-11-15 20:09:08 -0800 | [diff] [blame] | 3517 | } |
| 3518 | rc = scm_call(SCM_SVC_TZSCHEDULER, 1, &req, sizeof(req), |
| 3519 | &resp, sizeof(resp)); |
Mona Hossain | 32deb98 | 2013-08-06 16:25:44 -0700 | [diff] [blame] | 3520 | if (rc || (resp.result != QSEOS_RESULT_SUCCESS)) { |
| 3521 | pr_err("send secapp reg fail %d resp.res %d\n", |
| 3522 | rc, resp.result); |
| 3523 | rc = -EINVAL; |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3524 | goto exit_destroy_ion_client; |
Mona Hossain | 5b76a62 | 2012-11-15 20:09:08 -0800 | [diff] [blame] | 3525 | } |
| 3526 | } |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3527 | } else { |
Ramesh Masavarapu | fb1f01e | 2012-06-14 09:40:40 -0700 | [diff] [blame] | 3528 | qseecom_platform_support = (struct msm_bus_scale_pdata *) |
| 3529 | pdev->dev.platform_data; |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3530 | } |
Ramesh Masavarapu | a1bc0e4 | 2012-03-05 07:42:48 -0800 | [diff] [blame] | 3531 | |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3532 | qseecom.qsee_perf_client = msm_bus_scale_register_client( |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3533 | qseecom_platform_support); |
| 3534 | |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3535 | if (!qseecom.qsee_perf_client) |
Ramesh Masavarapu | ff37703 | 2012-09-14 12:11:32 -0700 | [diff] [blame] | 3536 | pr_err("Unable to register bus client\n"); |
| 3537 | return 0; |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3538 | |
| 3539 | exit_destroy_ion_client: |
| 3540 | ion_client_destroy(qseecom.ion_clnt); |
| 3541 | exit_del_cdev: |
| 3542 | cdev_del(&qseecom.cdev); |
| 3543 | exit_destroy_device: |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3544 | device_destroy(driver_class, qseecom_device_no); |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3545 | exit_destroy_class: |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3546 | class_destroy(driver_class); |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3547 | exit_unreg_chrdev_region: |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3548 | unregister_chrdev_region(qseecom_device_no, 1); |
| 3549 | return rc; |
| 3550 | } |
| 3551 | |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 3552 | static int __devinit qseecom_remove(struct platform_device *pdev) |
| 3553 | { |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 3554 | struct qseecom_registered_kclient_list *kclient = NULL; |
| 3555 | unsigned long flags = 0; |
| 3556 | int ret = 0; |
| 3557 | |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 3558 | spin_lock_irqsave(&qseecom.registered_kclient_list_lock, flags); |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3559 | |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 3560 | list_for_each_entry(kclient, &qseecom.registered_kclient_list_head, |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3561 | list) { |
| 3562 | if (!kclient) |
| 3563 | goto exit_irqrestore; |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 3564 | |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3565 | /* Break the loop if client handle is NULL */ |
| 3566 | if (!kclient->handle) |
| 3567 | goto exit_free_kclient; |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 3568 | |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3569 | if (list_empty(&kclient->list)) |
| 3570 | goto exit_free_kc_handle; |
| 3571 | |
| 3572 | list_del(&kclient->list); |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 3573 | ret = qseecom_unload_app(kclient->handle->dev); |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3574 | if (!ret) { |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 3575 | kzfree(kclient->handle->dev); |
| 3576 | kzfree(kclient->handle); |
| 3577 | kzfree(kclient); |
| 3578 | } |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 3579 | } |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3580 | |
| 3581 | exit_free_kc_handle: |
| 3582 | kzfree(kclient->handle); |
| 3583 | exit_free_kclient: |
| 3584 | kzfree(kclient); |
| 3585 | exit_irqrestore: |
| 3586 | spin_unlock_irqrestore(&qseecom.registered_kclient_list_lock, flags); |
| 3587 | |
| 3588 | if (qseecom.qseos_version > QSEEE_VERSION_00) |
Mona Hossain | 05c7356 | 2012-10-29 17:49:01 -0700 | [diff] [blame] | 3589 | qseecom_unload_commonlib_image(); |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 3590 | |
Mona Hossain | 17a4faf | 2013-03-22 16:40:56 -0700 | [diff] [blame] | 3591 | if (qseecom.qsee_perf_client) |
| 3592 | msm_bus_scale_client_update_request(qseecom.qsee_perf_client, |
| 3593 | 0); |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3594 | if (pdev->dev.platform_data != NULL) |
| 3595 | msm_bus_scale_unregister_client(qseecom.qsee_perf_client); |
| 3596 | |
Mona Hossain | d39e33b | 2012-11-05 13:36:40 -0800 | [diff] [blame] | 3597 | /* register client for bus scaling */ |
Mona Hossain | c92629e | 2013-04-01 13:37:46 -0700 | [diff] [blame] | 3598 | if (pdev->dev.of_node) { |
| 3599 | __qseecom_deinit_clk(CLK_QSEE); |
| 3600 | if (qseecom.qsee.instance != qseecom.ce_drv.instance) |
| 3601 | __qseecom_deinit_clk(CLK_CE_DRV); |
| 3602 | } |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3603 | |
| 3604 | ion_client_destroy(qseecom.ion_clnt); |
| 3605 | |
| 3606 | cdev_del(&qseecom.cdev); |
| 3607 | |
| 3608 | device_destroy(driver_class, qseecom_device_no); |
| 3609 | |
| 3610 | class_destroy(driver_class); |
| 3611 | |
| 3612 | unregister_chrdev_region(qseecom_device_no, 1); |
| 3613 | |
Mona Hossain | d44a384 | 2012-10-15 09:41:35 -0700 | [diff] [blame] | 3614 | return ret; |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3615 | } |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 3616 | |
Ramesh Masavarapu | fb1f01e | 2012-06-14 09:40:40 -0700 | [diff] [blame] | 3617 | static struct of_device_id qseecom_match[] = { |
| 3618 | { |
| 3619 | .compatible = "qcom,qseecom", |
| 3620 | }, |
| 3621 | {} |
| 3622 | }; |
| 3623 | |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 3624 | static struct platform_driver qseecom_plat_driver = { |
| 3625 | .probe = qseecom_probe, |
| 3626 | .remove = qseecom_remove, |
| 3627 | .driver = { |
| 3628 | .name = "qseecom", |
| 3629 | .owner = THIS_MODULE, |
Ramesh Masavarapu | fb1f01e | 2012-06-14 09:40:40 -0700 | [diff] [blame] | 3630 | .of_match_table = qseecom_match, |
Ramesh Masavarapu | a26cce7 | 2012-04-09 12:32:25 -0700 | [diff] [blame] | 3631 | }, |
| 3632 | }; |
| 3633 | |
| 3634 | static int __devinit qseecom_init(void) |
| 3635 | { |
| 3636 | return platform_driver_register(&qseecom_plat_driver); |
| 3637 | } |
| 3638 | |
| 3639 | static void __devexit qseecom_exit(void) |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3640 | { |
AnilKumar Chimata | a253a03 | 2013-10-04 18:53:42 +0530 | [diff] [blame] | 3641 | platform_driver_unregister(&qseecom_plat_driver); |
Mona Hossain | 2892b6b | 2012-02-17 13:53:11 -0800 | [diff] [blame] | 3642 | } |
| 3643 | |
| 3644 | MODULE_LICENSE("GPL v2"); |
| 3645 | MODULE_DESCRIPTION("Qualcomm Secure Execution Environment Communicator"); |
| 3646 | |
| 3647 | module_init(qseecom_init); |
| 3648 | module_exit(qseecom_exit); |