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- /* SPDX-License-Identifier: GPL-2.0-only */
- /* Copyright (c) 2010-2015, 2018-2019 The Linux Foundation. All rights reserved.
- * Copyright (C) 2015 Linaro Ltd.
- */
- #ifndef __QCOM_SCM_H
- #define __QCOM_SCM_H
- #include <linux/err.h>
- #include <linux/types.h>
- #include <linux/cpumask.h>
- #define QCOM_SCM_VERSION(major, minor) (((major) << 16) | ((minor) & 0xFF))
- #define QCOM_SCM_CPU_PWR_DOWN_L2_ON 0x0
- #define QCOM_SCM_CPU_PWR_DOWN_L2_OFF 0x1
- #define QCOM_SCM_HDCP_MAX_REQ_CNT 5
- struct qcom_scm_hdcp_req {
- u32 addr;
- u32 val;
- };
- struct qcom_scm_vmperm {
- int vmid;
- int perm;
- };
- enum qcom_scm_ocmem_client {
- QCOM_SCM_OCMEM_UNUSED_ID = 0x0,
- QCOM_SCM_OCMEM_GRAPHICS_ID,
- QCOM_SCM_OCMEM_VIDEO_ID,
- QCOM_SCM_OCMEM_LP_AUDIO_ID,
- QCOM_SCM_OCMEM_SENSORS_ID,
- QCOM_SCM_OCMEM_OTHER_OS_ID,
- QCOM_SCM_OCMEM_DEBUG_ID,
- };
- enum qcom_scm_sec_dev_id {
- QCOM_SCM_MDSS_DEV_ID = 1,
- QCOM_SCM_OCMEM_DEV_ID = 5,
- QCOM_SCM_PCIE0_DEV_ID = 11,
- QCOM_SCM_PCIE1_DEV_ID = 12,
- QCOM_SCM_GFX_DEV_ID = 18,
- QCOM_SCM_UFS_DEV_ID = 19,
- QCOM_SCM_ICE_DEV_ID = 20,
- };
- enum qcom_scm_ice_cipher {
- QCOM_SCM_ICE_CIPHER_AES_128_XTS = 0,
- QCOM_SCM_ICE_CIPHER_AES_128_CBC = 1,
- QCOM_SCM_ICE_CIPHER_AES_256_XTS = 3,
- QCOM_SCM_ICE_CIPHER_AES_256_CBC = 4,
- };
- #define QCOM_SCM_VMID_HLOS 0x3
- #define QCOM_SCM_VMID_MSS_MSA 0xF
- #define QCOM_SCM_VMID_WLAN 0x18
- #define QCOM_SCM_VMID_WLAN_CE 0x19
- #define QCOM_SCM_PERM_READ 0x4
- #define QCOM_SCM_PERM_WRITE 0x2
- #define QCOM_SCM_PERM_EXEC 0x1
- #define QCOM_SCM_PERM_RW (QCOM_SCM_PERM_READ | QCOM_SCM_PERM_WRITE)
- #define QCOM_SCM_PERM_RWX (QCOM_SCM_PERM_RW | QCOM_SCM_PERM_EXEC)
- #if IS_ENABLED(CONFIG_QCOM_SCM)
- extern bool qcom_scm_is_available(void);
- extern int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus);
- extern int qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus);
- extern void qcom_scm_cpu_power_down(u32 flags);
- extern int qcom_scm_set_remote_state(u32 state, u32 id);
- extern int qcom_scm_pas_init_image(u32 peripheral, const void *metadata,
- size_t size);
- extern int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr,
- phys_addr_t size);
- extern int qcom_scm_pas_auth_and_reset(u32 peripheral);
- extern int qcom_scm_pas_shutdown(u32 peripheral);
- extern bool qcom_scm_pas_supported(u32 peripheral);
- extern int qcom_scm_io_readl(phys_addr_t addr, unsigned int *val);
- extern int qcom_scm_io_writel(phys_addr_t addr, unsigned int val);
- extern bool qcom_scm_restore_sec_cfg_available(void);
- extern int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare);
- extern int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size);
- extern int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare);
- extern int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size,
- u32 cp_nonpixel_start,
- u32 cp_nonpixel_size);
- extern int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz,
- unsigned int *src,
- const struct qcom_scm_vmperm *newvm,
- unsigned int dest_cnt);
- extern bool qcom_scm_ocmem_lock_available(void);
- extern int qcom_scm_ocmem_lock(enum qcom_scm_ocmem_client id, u32 offset,
- u32 size, u32 mode);
- extern int qcom_scm_ocmem_unlock(enum qcom_scm_ocmem_client id, u32 offset,
- u32 size);
- extern bool qcom_scm_ice_available(void);
- extern int qcom_scm_ice_invalidate_key(u32 index);
- extern int qcom_scm_ice_set_key(u32 index, const u8 *key, u32 key_size,
- enum qcom_scm_ice_cipher cipher,
- u32 data_unit_size);
- extern bool qcom_scm_hdcp_available(void);
- extern int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt,
- u32 *resp);
- extern int qcom_scm_qsmmu500_wait_safe_toggle(bool en);
- #else
- #include <linux/errno.h>
- static inline bool qcom_scm_is_available(void) { return false; }
- static inline int qcom_scm_set_cold_boot_addr(void *entry,
- const cpumask_t *cpus) { return -ENODEV; }
- static inline int qcom_scm_set_warm_boot_addr(void *entry,
- const cpumask_t *cpus) { return -ENODEV; }
- static inline void qcom_scm_cpu_power_down(u32 flags) {}
- static inline u32 qcom_scm_set_remote_state(u32 state,u32 id)
- { return -ENODEV; }
- static inline int qcom_scm_pas_init_image(u32 peripheral, const void *metadata,
- size_t size) { return -ENODEV; }
- static inline int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr,
- phys_addr_t size) { return -ENODEV; }
- static inline int qcom_scm_pas_auth_and_reset(u32 peripheral)
- { return -ENODEV; }
- static inline int qcom_scm_pas_shutdown(u32 peripheral) { return -ENODEV; }
- static inline bool qcom_scm_pas_supported(u32 peripheral) { return false; }
- static inline int qcom_scm_io_readl(phys_addr_t addr, unsigned int *val)
- { return -ENODEV; }
- static inline int qcom_scm_io_writel(phys_addr_t addr, unsigned int val)
- { return -ENODEV; }
- static inline bool qcom_scm_restore_sec_cfg_available(void) { return false; }
- static inline int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare)
- { return -ENODEV; }
- static inline int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size)
- { return -ENODEV; }
- static inline int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare)
- { return -ENODEV; }
- extern inline int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size,
- u32 cp_nonpixel_start,
- u32 cp_nonpixel_size)
- { return -ENODEV; }
- static inline int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz,
- unsigned int *src, const struct qcom_scm_vmperm *newvm,
- unsigned int dest_cnt) { return -ENODEV; }
- static inline bool qcom_scm_ocmem_lock_available(void) { return false; }
- static inline int qcom_scm_ocmem_lock(enum qcom_scm_ocmem_client id, u32 offset,
- u32 size, u32 mode) { return -ENODEV; }
- static inline int qcom_scm_ocmem_unlock(enum qcom_scm_ocmem_client id,
- u32 offset, u32 size) { return -ENODEV; }
- static inline bool qcom_scm_ice_available(void) { return false; }
- static inline int qcom_scm_ice_invalidate_key(u32 index) { return -ENODEV; }
- static inline int qcom_scm_ice_set_key(u32 index, const u8 *key, u32 key_size,
- enum qcom_scm_ice_cipher cipher,
- u32 data_unit_size) { return -ENODEV; }
- static inline bool qcom_scm_hdcp_available(void) { return false; }
- static inline int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt,
- u32 *resp) { return -ENODEV; }
- static inline int qcom_scm_qsmmu500_wait_safe_toggle(bool en)
- { return -ENODEV; }
- #endif
- #endif
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