diff options
Diffstat (limited to 'include/linux/firmware/qcom')
| -rw-r--r-- | include/linux/firmware/qcom/qcom_qseecom.h | 53 | ||||
| -rw-r--r-- | include/linux/firmware/qcom/qcom_scm.h | 47 | ||||
| -rw-r--r-- | include/linux/firmware/qcom/qcom_tzmem.h | 56 |
3 files changed, 103 insertions, 53 deletions
diff --git a/include/linux/firmware/qcom/qcom_qseecom.h b/include/linux/firmware/qcom/qcom_qseecom.h index 366243ee9609..3387897bf368 100644 --- a/include/linux/firmware/qcom/qcom_qseecom.h +++ b/include/linux/firmware/qcom/qcom_qseecom.h @@ -26,56 +26,11 @@ struct qseecom_client { }; /** - * qseecom_scm_dev() - Get the SCM device associated with the QSEECOM client. - * @client: The QSEECOM client device. - * - * Returns the SCM device under which the provided QSEECOM client device - * operates. This function is intended to be used for DMA allocations. - */ -static inline struct device *qseecom_scm_dev(struct qseecom_client *client) -{ - return client->aux_dev.dev.parent->parent; -} - -/** - * qseecom_dma_alloc() - Allocate DMA memory for a QSEECOM client. - * @client: The QSEECOM client to allocate the memory for. - * @size: The number of bytes to allocate. - * @dma_handle: Pointer to where the DMA address should be stored. - * @gfp: Allocation flags. - * - * Wrapper function for dma_alloc_coherent(), allocating DMA memory usable for - * TZ/QSEECOM communication. Refer to dma_alloc_coherent() for details. - */ -static inline void *qseecom_dma_alloc(struct qseecom_client *client, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) -{ - return dma_alloc_coherent(qseecom_scm_dev(client), size, dma_handle, gfp); -} - -/** - * dma_free_coherent() - Free QSEECOM DMA memory. - * @client: The QSEECOM client for which the memory has been allocated. - * @size: The number of bytes allocated. - * @cpu_addr: Virtual memory address to free. - * @dma_handle: DMA memory address to free. - * - * Wrapper function for dma_free_coherent(), freeing memory previously - * allocated with qseecom_dma_alloc(). Refer to dma_free_coherent() for - * details. - */ -static inline void qseecom_dma_free(struct qseecom_client *client, size_t size, - void *cpu_addr, dma_addr_t dma_handle) -{ - return dma_free_coherent(qseecom_scm_dev(client), size, cpu_addr, dma_handle); -} - -/** * qcom_qseecom_app_send() - Send to and receive data from a given QSEE app. * @client: The QSEECOM client associated with the target app. - * @req: DMA address of the request buffer sent to the app. + * @req: Request buffer sent to the app (must be TZ memory). * @req_size: Size of the request buffer. - * @rsp: DMA address of the response buffer, written to by the app. + * @rsp: Response buffer, written to by the app (must be TZ memory). * @rsp_size: Size of the response buffer. * * Sends a request to the QSEE app associated with the given client and read @@ -90,8 +45,8 @@ static inline void qseecom_dma_free(struct qseecom_client *client, size_t size, * Return: Zero on success, nonzero on failure. */ static inline int qcom_qseecom_app_send(struct qseecom_client *client, - dma_addr_t req, size_t req_size, - dma_addr_t rsp, size_t rsp_size) + void *req, size_t req_size, + void *rsp, size_t rsp_size) { return qcom_scm_qseecom_app_send(client->app_id, req, req_size, rsp, rsp_size); } diff --git a/include/linux/firmware/qcom/qcom_scm.h b/include/linux/firmware/qcom/qcom_scm.h index aaa19f93ac43..983e1591bbba 100644 --- a/include/linux/firmware/qcom/qcom_scm.h +++ b/include/linux/firmware/qcom/qcom_scm.h @@ -85,6 +85,8 @@ int qcom_scm_io_writel(phys_addr_t addr, unsigned int val); bool qcom_scm_restore_sec_cfg_available(void); int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare); +int qcom_scm_set_gpu_smmu_aperture(unsigned int context_bank); +bool qcom_scm_set_gpu_smmu_aperture_is_available(void); int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size); int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare); int qcom_scm_iommu_set_cp_pool_size(u32 spare, u32 size); @@ -103,6 +105,14 @@ bool qcom_scm_ice_available(void); int qcom_scm_ice_invalidate_key(u32 index); int qcom_scm_ice_set_key(u32 index, const u8 *key, u32 key_size, enum qcom_scm_ice_cipher cipher, u32 data_unit_size); +bool qcom_scm_has_wrapped_key_support(void); +int qcom_scm_derive_sw_secret(const u8 *eph_key, size_t eph_key_size, + u8 *sw_secret, size_t sw_secret_size); +int qcom_scm_generate_ice_key(u8 *lt_key, size_t lt_key_size); +int qcom_scm_prepare_ice_key(const u8 *lt_key, size_t lt_key_size, + u8 *eph_key, size_t eph_key_size); +int qcom_scm_import_ice_key(const u8 *raw_key, size_t raw_key_size, + u8 *lt_key, size_t lt_key_size); bool qcom_scm_hdcp_available(void); int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp); @@ -115,11 +125,40 @@ int qcom_scm_lmh_dcvsh(u32 payload_fn, u32 payload_reg, u32 payload_val, int qcom_scm_lmh_profile_change(u32 profile_id); bool qcom_scm_lmh_dcvsh_available(void); +/* + * Request TZ to program set of access controlled registers necessary + * irrespective of any features + */ +#define QCOM_SCM_GPU_ALWAYS_EN_REQ BIT(0) +/* + * Request TZ to program BCL id to access controlled register when BCL is + * enabled + */ +#define QCOM_SCM_GPU_BCL_EN_REQ BIT(1) +/* + * Request TZ to program set of access controlled register for CLX feature + * when enabled + */ +#define QCOM_SCM_GPU_CLX_EN_REQ BIT(2) +/* + * Request TZ to program tsense ids to access controlled registers for reading + * gpu temperature sensors + */ +#define QCOM_SCM_GPU_TSENSE_EN_REQ BIT(3) + +int qcom_scm_gpu_init_regs(u32 gpu_req); + +int qcom_scm_shm_bridge_enable(void); +int qcom_scm_shm_bridge_create(struct device *dev, u64 pfn_and_ns_perm_flags, + u64 ipfn_and_s_perm_flags, u64 size_and_flags, + u64 ns_vmids, u64 *handle); +int qcom_scm_shm_bridge_delete(struct device *dev, u64 handle); + #ifdef CONFIG_QCOM_QSEECOM int qcom_scm_qseecom_app_get_id(const char *app_name, u32 *app_id); -int qcom_scm_qseecom_app_send(u32 app_id, dma_addr_t req, size_t req_size, - dma_addr_t rsp, size_t rsp_size); +int qcom_scm_qseecom_app_send(u32 app_id, void *req, size_t req_size, + void *rsp, size_t rsp_size); #else /* CONFIG_QCOM_QSEECOM */ @@ -129,8 +168,8 @@ static inline int qcom_scm_qseecom_app_get_id(const char *app_name, u32 *app_id) } static inline int qcom_scm_qseecom_app_send(u32 app_id, - dma_addr_t req, size_t req_size, - dma_addr_t rsp, size_t rsp_size) + void *req, size_t req_size, + void *rsp, size_t rsp_size) { return -EINVAL; } diff --git a/include/linux/firmware/qcom/qcom_tzmem.h b/include/linux/firmware/qcom/qcom_tzmem.h new file mode 100644 index 000000000000..b83b63a0c049 --- /dev/null +++ b/include/linux/firmware/qcom/qcom_tzmem.h @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2023-2024 Linaro Ltd. + */ + +#ifndef __QCOM_TZMEM_H +#define __QCOM_TZMEM_H + +#include <linux/cleanup.h> +#include <linux/gfp.h> +#include <linux/types.h> + +struct device; +struct qcom_tzmem_pool; + +/** + * enum qcom_tzmem_policy - Policy for pool growth. + */ +enum qcom_tzmem_policy { + /**< Static pool, never grow above initial size. */ + QCOM_TZMEM_POLICY_STATIC = 1, + /**< When out of memory, add increment * current size of memory. */ + QCOM_TZMEM_POLICY_MULTIPLIER, + /**< When out of memory add as much as is needed until max_size. */ + QCOM_TZMEM_POLICY_ON_DEMAND, +}; + +/** + * struct qcom_tzmem_pool_config - TZ memory pool configuration. + * @initial_size: Number of bytes to allocate for the pool during its creation. + * @policy: Pool size growth policy. + * @increment: Used with policies that allow pool growth. + * @max_size: Size above which the pool will never grow. + */ +struct qcom_tzmem_pool_config { + size_t initial_size; + enum qcom_tzmem_policy policy; + size_t increment; + size_t max_size; +}; + +struct qcom_tzmem_pool * +qcom_tzmem_pool_new(const struct qcom_tzmem_pool_config *config); +void qcom_tzmem_pool_free(struct qcom_tzmem_pool *pool); +struct qcom_tzmem_pool * +devm_qcom_tzmem_pool_new(struct device *dev, + const struct qcom_tzmem_pool_config *config); + +void *qcom_tzmem_alloc(struct qcom_tzmem_pool *pool, size_t size, gfp_t gfp); +void qcom_tzmem_free(void *ptr); + +DEFINE_FREE(qcom_tzmem, void *, if (_T) qcom_tzmem_free(_T)) + +phys_addr_t qcom_tzmem_to_phys(void *ptr); + +#endif /* __QCOM_TZMEM */ |