diff options
Diffstat (limited to 'drivers/firmware/qcom_scm.c')
| -rw-r--r-- | drivers/firmware/qcom_scm.c | 156 |
1 files changed, 49 insertions, 107 deletions
diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c index fde33acd46b7..06fe8aca870d 100644 --- a/drivers/firmware/qcom_scm.c +++ b/drivers/firmware/qcom_scm.c @@ -26,10 +26,6 @@ static bool download_mode = IS_ENABLED(CONFIG_QCOM_SCM_DOWNLOAD_MODE_DEFAULT); module_param(download_mode, bool, 0); -#define SCM_HAS_CORE_CLK BIT(0) -#define SCM_HAS_IFACE_CLK BIT(1) -#define SCM_HAS_BUS_CLK BIT(2) - struct qcom_scm { struct device *dev; struct clk *core_clk; @@ -351,7 +347,7 @@ int qcom_scm_set_warm_boot_addr(void *entry) return qcom_scm_set_boot_addr(entry, qcom_scm_cpu_warm_bits); return 0; } -EXPORT_SYMBOL(qcom_scm_set_warm_boot_addr); +EXPORT_SYMBOL_GPL(qcom_scm_set_warm_boot_addr); /** * qcom_scm_set_cold_boot_addr() - Set the cold boot address for all cpus @@ -364,7 +360,7 @@ int qcom_scm_set_cold_boot_addr(void *entry) return qcom_scm_set_boot_addr(entry, qcom_scm_cpu_cold_bits); return 0; } -EXPORT_SYMBOL(qcom_scm_set_cold_boot_addr); +EXPORT_SYMBOL_GPL(qcom_scm_set_cold_boot_addr); /** * qcom_scm_cpu_power_down() - Power down the cpu @@ -386,7 +382,7 @@ void qcom_scm_cpu_power_down(u32 flags) qcom_scm_call_atomic(__scm ? __scm->dev : NULL, &desc, NULL); } -EXPORT_SYMBOL(qcom_scm_cpu_power_down); +EXPORT_SYMBOL_GPL(qcom_scm_cpu_power_down); int qcom_scm_set_remote_state(u32 state, u32 id) { @@ -405,7 +401,7 @@ int qcom_scm_set_remote_state(u32 state, u32 id) return ret ? : res.result[0]; } -EXPORT_SYMBOL(qcom_scm_set_remote_state); +EXPORT_SYMBOL_GPL(qcom_scm_set_remote_state); static int __qcom_scm_set_dload_mode(struct device *dev, bool enable) { @@ -515,7 +511,7 @@ out: return ret ? : res.result[0]; } -EXPORT_SYMBOL(qcom_scm_pas_init_image); +EXPORT_SYMBOL_GPL(qcom_scm_pas_init_image); /** * qcom_scm_pas_metadata_release() - release metadata context @@ -532,7 +528,7 @@ void qcom_scm_pas_metadata_release(struct qcom_scm_pas_metadata *ctx) ctx->phys = 0; ctx->size = 0; } -EXPORT_SYMBOL(qcom_scm_pas_metadata_release); +EXPORT_SYMBOL_GPL(qcom_scm_pas_metadata_release); /** * qcom_scm_pas_mem_setup() - Prepare the memory related to a given peripheral @@ -571,7 +567,7 @@ int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr, phys_addr_t size) return ret ? : res.result[0]; } -EXPORT_SYMBOL(qcom_scm_pas_mem_setup); +EXPORT_SYMBOL_GPL(qcom_scm_pas_mem_setup); /** * qcom_scm_pas_auth_and_reset() - Authenticate the given peripheral firmware @@ -606,7 +602,7 @@ int qcom_scm_pas_auth_and_reset(u32 peripheral) return ret ? : res.result[0]; } -EXPORT_SYMBOL(qcom_scm_pas_auth_and_reset); +EXPORT_SYMBOL_GPL(qcom_scm_pas_auth_and_reset); /** * qcom_scm_pas_shutdown() - Shut down the remote processor @@ -641,7 +637,7 @@ int qcom_scm_pas_shutdown(u32 peripheral) return ret ? : res.result[0]; } -EXPORT_SYMBOL(qcom_scm_pas_shutdown); +EXPORT_SYMBOL_GPL(qcom_scm_pas_shutdown); /** * qcom_scm_pas_supported() - Check if the peripheral authentication service is @@ -670,7 +666,7 @@ bool qcom_scm_pas_supported(u32 peripheral) return ret ? false : !!res.result[0]; } -EXPORT_SYMBOL(qcom_scm_pas_supported); +EXPORT_SYMBOL_GPL(qcom_scm_pas_supported); static int __qcom_scm_pas_mss_reset(struct device *dev, bool reset) { @@ -732,7 +728,7 @@ int qcom_scm_io_readl(phys_addr_t addr, unsigned int *val) return ret < 0 ? ret : 0; } -EXPORT_SYMBOL(qcom_scm_io_readl); +EXPORT_SYMBOL_GPL(qcom_scm_io_readl); int qcom_scm_io_writel(phys_addr_t addr, unsigned int val) { @@ -747,7 +743,7 @@ int qcom_scm_io_writel(phys_addr_t addr, unsigned int val) return qcom_scm_call_atomic(__scm->dev, &desc, NULL); } -EXPORT_SYMBOL(qcom_scm_io_writel); +EXPORT_SYMBOL_GPL(qcom_scm_io_writel); /** * qcom_scm_restore_sec_cfg_available() - Check if secure environment @@ -760,7 +756,7 @@ bool qcom_scm_restore_sec_cfg_available(void) return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_MP, QCOM_SCM_MP_RESTORE_SEC_CFG); } -EXPORT_SYMBOL(qcom_scm_restore_sec_cfg_available); +EXPORT_SYMBOL_GPL(qcom_scm_restore_sec_cfg_available); int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare) { @@ -779,7 +775,7 @@ int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare) return ret ? : res.result[0]; } -EXPORT_SYMBOL(qcom_scm_restore_sec_cfg); +EXPORT_SYMBOL_GPL(qcom_scm_restore_sec_cfg); int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size) { @@ -800,7 +796,7 @@ int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size) return ret ? : res.result[1]; } -EXPORT_SYMBOL(qcom_scm_iommu_secure_ptbl_size); +EXPORT_SYMBOL_GPL(qcom_scm_iommu_secure_ptbl_size); int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare) { @@ -824,7 +820,7 @@ int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare) return ret; } -EXPORT_SYMBOL(qcom_scm_iommu_secure_ptbl_init); +EXPORT_SYMBOL_GPL(qcom_scm_iommu_secure_ptbl_init); int qcom_scm_iommu_set_cp_pool_size(u32 spare, u32 size) { @@ -839,7 +835,7 @@ int qcom_scm_iommu_set_cp_pool_size(u32 spare, u32 size) return qcom_scm_call(__scm->dev, &desc, NULL); } -EXPORT_SYMBOL(qcom_scm_iommu_set_cp_pool_size); +EXPORT_SYMBOL_GPL(qcom_scm_iommu_set_cp_pool_size); int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size, u32 cp_nonpixel_start, @@ -863,7 +859,7 @@ int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size, return ret ? : res.result[0]; } -EXPORT_SYMBOL(qcom_scm_mem_protect_video_var); +EXPORT_SYMBOL_GPL(qcom_scm_mem_protect_video_var); static int __qcom_scm_assign_mem(struct device *dev, phys_addr_t mem_region, size_t mem_sz, phys_addr_t src, size_t src_sz, @@ -972,7 +968,7 @@ int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz, *srcvm = next_vm; return 0; } -EXPORT_SYMBOL(qcom_scm_assign_mem); +EXPORT_SYMBOL_GPL(qcom_scm_assign_mem); /** * qcom_scm_ocmem_lock_available() - is OCMEM lock/unlock interface available @@ -982,7 +978,7 @@ bool qcom_scm_ocmem_lock_available(void) return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_OCMEM, QCOM_SCM_OCMEM_LOCK_CMD); } -EXPORT_SYMBOL(qcom_scm_ocmem_lock_available); +EXPORT_SYMBOL_GPL(qcom_scm_ocmem_lock_available); /** * qcom_scm_ocmem_lock() - call OCMEM lock interface to assign an OCMEM @@ -1008,7 +1004,7 @@ int qcom_scm_ocmem_lock(enum qcom_scm_ocmem_client id, u32 offset, u32 size, return qcom_scm_call(__scm->dev, &desc, NULL); } -EXPORT_SYMBOL(qcom_scm_ocmem_lock); +EXPORT_SYMBOL_GPL(qcom_scm_ocmem_lock); /** * qcom_scm_ocmem_unlock() - call OCMEM unlock interface to release an OCMEM @@ -1031,7 +1027,7 @@ int qcom_scm_ocmem_unlock(enum qcom_scm_ocmem_client id, u32 offset, u32 size) return qcom_scm_call(__scm->dev, &desc, NULL); } -EXPORT_SYMBOL(qcom_scm_ocmem_unlock); +EXPORT_SYMBOL_GPL(qcom_scm_ocmem_unlock); /** * qcom_scm_ice_available() - Is the ICE key programming interface available? @@ -1046,7 +1042,7 @@ bool qcom_scm_ice_available(void) __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_ES, QCOM_SCM_ES_CONFIG_SET_ICE_KEY); } -EXPORT_SYMBOL(qcom_scm_ice_available); +EXPORT_SYMBOL_GPL(qcom_scm_ice_available); /** * qcom_scm_ice_invalidate_key() - Invalidate an inline encryption key @@ -1072,7 +1068,7 @@ int qcom_scm_ice_invalidate_key(u32 index) return qcom_scm_call(__scm->dev, &desc, NULL); } -EXPORT_SYMBOL(qcom_scm_ice_invalidate_key); +EXPORT_SYMBOL_GPL(qcom_scm_ice_invalidate_key); /** * qcom_scm_ice_set_key() - Set an inline encryption key @@ -1138,7 +1134,7 @@ int qcom_scm_ice_set_key(u32 index, const u8 *key, u32 key_size, dma_free_coherent(__scm->dev, key_size, keybuf, key_phys); return ret; } -EXPORT_SYMBOL(qcom_scm_ice_set_key); +EXPORT_SYMBOL_GPL(qcom_scm_ice_set_key); /** * qcom_scm_hdcp_available() - Check if secure environment supports HDCP. @@ -1160,7 +1156,7 @@ bool qcom_scm_hdcp_available(void) return avail; } -EXPORT_SYMBOL(qcom_scm_hdcp_available); +EXPORT_SYMBOL_GPL(qcom_scm_hdcp_available); /** * qcom_scm_hdcp_req() - Send HDCP request. @@ -1207,7 +1203,7 @@ int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp) return ret; } -EXPORT_SYMBOL(qcom_scm_hdcp_req); +EXPORT_SYMBOL_GPL(qcom_scm_hdcp_req); int qcom_scm_iommu_set_pt_format(u32 sec_id, u32 ctx_num, u32 pt_fmt) { @@ -1223,7 +1219,7 @@ int qcom_scm_iommu_set_pt_format(u32 sec_id, u32 ctx_num, u32 pt_fmt) return qcom_scm_call(__scm->dev, &desc, NULL); } -EXPORT_SYMBOL(qcom_scm_iommu_set_pt_format); +EXPORT_SYMBOL_GPL(qcom_scm_iommu_set_pt_format); int qcom_scm_qsmmu500_wait_safe_toggle(bool en) { @@ -1239,13 +1235,13 @@ int qcom_scm_qsmmu500_wait_safe_toggle(bool en) return qcom_scm_call_atomic(__scm->dev, &desc, NULL); } -EXPORT_SYMBOL(qcom_scm_qsmmu500_wait_safe_toggle); +EXPORT_SYMBOL_GPL(qcom_scm_qsmmu500_wait_safe_toggle); bool qcom_scm_lmh_dcvsh_available(void) { return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_LMH, QCOM_SCM_LMH_LIMIT_DCVSH); } -EXPORT_SYMBOL(qcom_scm_lmh_dcvsh_available); +EXPORT_SYMBOL_GPL(qcom_scm_lmh_dcvsh_available); int qcom_scm_lmh_profile_change(u32 profile_id) { @@ -1259,7 +1255,7 @@ int qcom_scm_lmh_profile_change(u32 profile_id) return qcom_scm_call(__scm->dev, &desc, NULL); } -EXPORT_SYMBOL(qcom_scm_lmh_profile_change); +EXPORT_SYMBOL_GPL(qcom_scm_lmh_profile_change); int qcom_scm_lmh_dcvsh(u32 payload_fn, u32 payload_reg, u32 payload_val, u64 limit_node, u32 node_id, u64 version) @@ -1297,7 +1293,7 @@ int qcom_scm_lmh_dcvsh(u32 payload_fn, u32 payload_reg, u32 payload_val, dma_free_coherent(__scm->dev, payload_size, payload_buf, payload_phys); return ret; } -EXPORT_SYMBOL(qcom_scm_lmh_dcvsh); +EXPORT_SYMBOL_GPL(qcom_scm_lmh_dcvsh); static int qcom_scm_find_dload_address(struct device *dev, u64 *addr) { @@ -1332,7 +1328,7 @@ bool qcom_scm_is_available(void) { return !!__scm; } -EXPORT_SYMBOL(qcom_scm_is_available); +EXPORT_SYMBOL_GPL(qcom_scm_is_available); static int qcom_scm_assert_valid_wq_ctx(u32 wq_ctx) { @@ -1405,7 +1401,6 @@ out: static int qcom_scm_probe(struct platform_device *pdev) { struct qcom_scm *scm; - unsigned long clks; int irq, ret; scm = devm_kzalloc(&pdev->dev, sizeof(*scm), GFP_KERNEL); @@ -1418,51 +1413,22 @@ static int qcom_scm_probe(struct platform_device *pdev) mutex_init(&scm->scm_bw_lock); - clks = (unsigned long)of_device_get_match_data(&pdev->dev); - scm->path = devm_of_icc_get(&pdev->dev, NULL); if (IS_ERR(scm->path)) return dev_err_probe(&pdev->dev, PTR_ERR(scm->path), "failed to acquire interconnect path\n"); - scm->core_clk = devm_clk_get(&pdev->dev, "core"); - if (IS_ERR(scm->core_clk)) { - if (PTR_ERR(scm->core_clk) == -EPROBE_DEFER) - return PTR_ERR(scm->core_clk); - - if (clks & SCM_HAS_CORE_CLK) { - dev_err(&pdev->dev, "failed to acquire core clk\n"); - return PTR_ERR(scm->core_clk); - } - - scm->core_clk = NULL; - } - - scm->iface_clk = devm_clk_get(&pdev->dev, "iface"); - if (IS_ERR(scm->iface_clk)) { - if (PTR_ERR(scm->iface_clk) == -EPROBE_DEFER) - return PTR_ERR(scm->iface_clk); - - if (clks & SCM_HAS_IFACE_CLK) { - dev_err(&pdev->dev, "failed to acquire iface clk\n"); - return PTR_ERR(scm->iface_clk); - } - - scm->iface_clk = NULL; - } + scm->core_clk = devm_clk_get_optional(&pdev->dev, "core"); + if (IS_ERR(scm->core_clk)) + return PTR_ERR(scm->core_clk); - scm->bus_clk = devm_clk_get(&pdev->dev, "bus"); - if (IS_ERR(scm->bus_clk)) { - if (PTR_ERR(scm->bus_clk) == -EPROBE_DEFER) - return PTR_ERR(scm->bus_clk); + scm->iface_clk = devm_clk_get_optional(&pdev->dev, "iface"); + if (IS_ERR(scm->iface_clk)) + return PTR_ERR(scm->iface_clk); - if (clks & SCM_HAS_BUS_CLK) { - dev_err(&pdev->dev, "failed to acquire bus clk\n"); - return PTR_ERR(scm->bus_clk); - } - - scm->bus_clk = NULL; - } + scm->bus_clk = devm_clk_get_optional(&pdev->dev, "bus"); + if (IS_ERR(scm->bus_clk)) + return PTR_ERR(scm->bus_clk); scm->reset.ops = &qcom_scm_pas_reset_ops; scm->reset.nr_resets = 1; @@ -1512,39 +1478,15 @@ static void qcom_scm_shutdown(struct platform_device *pdev) } static const struct of_device_id qcom_scm_dt_match[] = { - { .compatible = "qcom,scm-apq8064", - /* FIXME: This should have .data = (void *) SCM_HAS_CORE_CLK */ - }, - { .compatible = "qcom,scm-apq8084", .data = (void *)(SCM_HAS_CORE_CLK | - SCM_HAS_IFACE_CLK | - SCM_HAS_BUS_CLK) - }, + { .compatible = "qcom,scm" }, + + /* Legacy entries kept for backwards compatibility */ + { .compatible = "qcom,scm-apq8064" }, + { .compatible = "qcom,scm-apq8084" }, { .compatible = "qcom,scm-ipq4019" }, - { .compatible = "qcom,scm-mdm9607", .data = (void *)(SCM_HAS_CORE_CLK | - SCM_HAS_IFACE_CLK | - SCM_HAS_BUS_CLK) }, - { .compatible = "qcom,scm-msm8660", .data = (void *) SCM_HAS_CORE_CLK }, - { .compatible = "qcom,scm-msm8960", .data = (void *) SCM_HAS_CORE_CLK }, - { .compatible = "qcom,scm-msm8916", .data = (void *)(SCM_HAS_CORE_CLK | - SCM_HAS_IFACE_CLK | - SCM_HAS_BUS_CLK) - }, - { .compatible = "qcom,scm-msm8953", .data = (void *)(SCM_HAS_CORE_CLK | - SCM_HAS_IFACE_CLK | - SCM_HAS_BUS_CLK) - }, - { .compatible = "qcom,scm-msm8974", .data = (void *)(SCM_HAS_CORE_CLK | - SCM_HAS_IFACE_CLK | - SCM_HAS_BUS_CLK) - }, - { .compatible = "qcom,scm-msm8976", .data = (void *)(SCM_HAS_CORE_CLK | - SCM_HAS_IFACE_CLK | - SCM_HAS_BUS_CLK) - }, - { .compatible = "qcom,scm-msm8994" }, + { .compatible = "qcom,scm-msm8953" }, + { .compatible = "qcom,scm-msm8974" }, { .compatible = "qcom,scm-msm8996" }, - { .compatible = "qcom,scm-sm6375", .data = (void *)SCM_HAS_CORE_CLK }, - { .compatible = "qcom,scm" }, {} }; MODULE_DEVICE_TABLE(of, qcom_scm_dt_match); |