1/* SPDX-License-Identifier: GPL-2.0-only */
2/* Copyright (c) 2010-2015, 2018-2019 The Linux Foundation. All rights reserved.
3 * Copyright (C) 2015 Linaro Ltd.
4 */
5#ifndef __QCOM_SCM_H
6#define __QCOM_SCM_H
7
8#include <linux/err.h>
9#include <linux/types.h>
10#include <linux/cpumask.h>
11
12#include <dt-bindings/firmware/qcom,scm.h>
13
14#define QCOM_SCM_VERSION(major, minor) (((major) << 16) | ((minor) & 0xFF))
15#define QCOM_SCM_CPU_PWR_DOWN_L2_ON 0x0
16#define QCOM_SCM_CPU_PWR_DOWN_L2_OFF 0x1
17#define QCOM_SCM_HDCP_MAX_REQ_CNT 5
18
19struct qcom_scm_hdcp_req {
20 u32 addr;
21 u32 val;
22};
23
24struct qcom_scm_vmperm {
25 int vmid;
26 int perm;
27};
28
29enum qcom_scm_ocmem_client {
30 QCOM_SCM_OCMEM_UNUSED_ID = 0x0,
31 QCOM_SCM_OCMEM_GRAPHICS_ID,
32 QCOM_SCM_OCMEM_VIDEO_ID,
33 QCOM_SCM_OCMEM_LP_AUDIO_ID,
34 QCOM_SCM_OCMEM_SENSORS_ID,
35 QCOM_SCM_OCMEM_OTHER_OS_ID,
36 QCOM_SCM_OCMEM_DEBUG_ID,
37};
38
39enum qcom_scm_sec_dev_id {
40 QCOM_SCM_MDSS_DEV_ID = 1,
41 QCOM_SCM_OCMEM_DEV_ID = 5,
42 QCOM_SCM_PCIE0_DEV_ID = 11,
43 QCOM_SCM_PCIE1_DEV_ID = 12,
44 QCOM_SCM_GFX_DEV_ID = 18,
45 QCOM_SCM_UFS_DEV_ID = 19,
46 QCOM_SCM_ICE_DEV_ID = 20,
47};
48
49enum qcom_scm_ice_cipher {
50 QCOM_SCM_ICE_CIPHER_AES_128_XTS = 0,
51 QCOM_SCM_ICE_CIPHER_AES_128_CBC = 1,
52 QCOM_SCM_ICE_CIPHER_AES_256_XTS = 3,
53 QCOM_SCM_ICE_CIPHER_AES_256_CBC = 4,
54};
55
56#define QCOM_SCM_PERM_READ 0x4
57#define QCOM_SCM_PERM_WRITE 0x2
58#define QCOM_SCM_PERM_EXEC 0x1
59#define QCOM_SCM_PERM_RW (QCOM_SCM_PERM_READ | QCOM_SCM_PERM_WRITE)
60#define QCOM_SCM_PERM_RWX (QCOM_SCM_PERM_RW | QCOM_SCM_PERM_EXEC)
61
62bool qcom_scm_is_available(void);
63
64int qcom_scm_set_cold_boot_addr(void *entry);
65int qcom_scm_set_warm_boot_addr(void *entry);
66void qcom_scm_cpu_power_down(u32 flags);
67int qcom_scm_set_remote_state(u32 state, u32 id);
68
69struct qcom_scm_pas_metadata {
70 void *ptr;
71 dma_addr_t phys;
72 ssize_t size;
73};
74
75int qcom_scm_pas_init_image(u32 peripheral, const void *metadata, size_t size,
76 struct qcom_scm_pas_metadata *ctx);
77void qcom_scm_pas_metadata_release(struct qcom_scm_pas_metadata *ctx);
78int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr, phys_addr_t size);
79int qcom_scm_pas_auth_and_reset(u32 peripheral);
80int qcom_scm_pas_shutdown(u32 peripheral);
81bool qcom_scm_pas_supported(u32 peripheral);
82
83int qcom_scm_io_readl(phys_addr_t addr, unsigned int *val);
84int qcom_scm_io_writel(phys_addr_t addr, unsigned int val);
85
86bool qcom_scm_restore_sec_cfg_available(void);
87int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare);
88int qcom_scm_set_gpu_smmu_aperture(unsigned int context_bank);
89bool qcom_scm_set_gpu_smmu_aperture_is_available(void);
90int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size);
91int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare);
92int qcom_scm_iommu_set_cp_pool_size(u32 spare, u32 size);
93int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size,
94 u32 cp_nonpixel_start, u32 cp_nonpixel_size);
95int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz, u64 *src,
96 const struct qcom_scm_vmperm *newvm,
97 unsigned int dest_cnt);
98
99bool qcom_scm_ocmem_lock_available(void);
100int qcom_scm_ocmem_lock(enum qcom_scm_ocmem_client id, u32 offset, u32 size,
101 u32 mode);
102int qcom_scm_ocmem_unlock(enum qcom_scm_ocmem_client id, u32 offset, u32 size);
103
104bool qcom_scm_ice_available(void);
105int qcom_scm_ice_invalidate_key(u32 index);
106int qcom_scm_ice_set_key(u32 index, const u8 *key, u32 key_size,
107 enum qcom_scm_ice_cipher cipher, u32 data_unit_size);
108bool qcom_scm_has_wrapped_key_support(void);
109int qcom_scm_derive_sw_secret(const u8 *eph_key, size_t eph_key_size,
110 u8 *sw_secret, size_t sw_secret_size);
111int qcom_scm_generate_ice_key(u8 *lt_key, size_t lt_key_size);
112int qcom_scm_prepare_ice_key(const u8 *lt_key, size_t lt_key_size,
113 u8 *eph_key, size_t eph_key_size);
114int qcom_scm_import_ice_key(const u8 *raw_key, size_t raw_key_size,
115 u8 *lt_key, size_t lt_key_size);
116
117bool qcom_scm_hdcp_available(void);
118int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp);
119
120int qcom_scm_iommu_set_pt_format(u32 sec_id, u32 ctx_num, u32 pt_fmt);
121int qcom_scm_qsmmu500_wait_safe_toggle(bool en);
122
123int qcom_scm_lmh_dcvsh(u32 payload_fn, u32 payload_reg, u32 payload_val,
124 u64 limit_node, u32 node_id, u64 version);
125int qcom_scm_lmh_profile_change(u32 profile_id);
126bool qcom_scm_lmh_dcvsh_available(void);
127
128/*
129 * Request TZ to program set of access controlled registers necessary
130 * irrespective of any features
131 */
132#define QCOM_SCM_GPU_ALWAYS_EN_REQ BIT(0)
133/*
134 * Request TZ to program BCL id to access controlled register when BCL is
135 * enabled
136 */
137#define QCOM_SCM_GPU_BCL_EN_REQ BIT(1)
138/*
139 * Request TZ to program set of access controlled register for CLX feature
140 * when enabled
141 */
142#define QCOM_SCM_GPU_CLX_EN_REQ BIT(2)
143/*
144 * Request TZ to program tsense ids to access controlled registers for reading
145 * gpu temperature sensors
146 */
147#define QCOM_SCM_GPU_TSENSE_EN_REQ BIT(3)
148
149int qcom_scm_gpu_init_regs(u32 gpu_req);
150
151int qcom_scm_shm_bridge_create(u64 pfn_and_ns_perm_flags,
152 u64 ipfn_and_s_perm_flags, u64 size_and_flags,
153 u64 ns_vmids, u64 *handle);
154int qcom_scm_shm_bridge_delete(u64 handle);
155
156#ifdef CONFIG_QCOM_QSEECOM
157
158int qcom_scm_qseecom_app_get_id(const char *app_name, u32 *app_id);
159int qcom_scm_qseecom_app_send(u32 app_id, void *req, size_t req_size,
160 void *rsp, size_t rsp_size);
161
162#else /* CONFIG_QCOM_QSEECOM */
163
164static inline int qcom_scm_qseecom_app_get_id(const char *app_name, u32 *app_id)
165{
166 return -EINVAL;
167}
168
169static inline int qcom_scm_qseecom_app_send(u32 app_id,
170 void *req, size_t req_size,
171 void *rsp, size_t rsp_size)
172{
173 return -EINVAL;
174}
175
176#endif /* CONFIG_QCOM_QSEECOM */
177
178int qcom_scm_qtee_invoke_smc(phys_addr_t inbuf, size_t inbuf_size,
179 phys_addr_t outbuf, size_t outbuf_size,
180 u64 *result, u64 *response_type);
181int qcom_scm_qtee_callback_response(phys_addr_t buf, size_t buf_size,
182 u64 *result, u64 *response_type);
183
184#endif
185

source code of linux/include/linux/firmware/qcom/qcom_scm.h