| // SPDX-License-Identifier: GPL-2.0 |
| /* Copyright (c) 2019 HiSilicon Limited. */ |
| |
| #include <linux/acpi.h> |
| #include <linux/aer.h> |
| #include <linux/bitops.h> |
| #include <linux/debugfs.h> |
| #include <linux/init.h> |
| #include <linux/io.h> |
| #include <linux/iommu.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/pci.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/seq_file.h> |
| #include <linux/topology.h> |
| #include <linux/uacce.h> |
| |
| #include "sec.h" |
| |
| #define SEC_VF_NUM 63 |
| #define SEC_QUEUE_NUM_V1 4096 |
| #define PCI_DEVICE_ID_HUAWEI_SEC_PF 0xa255 |
| |
| #define SEC_BD_ERR_CHK_EN0 0xEFFFFFFF |
| #define SEC_BD_ERR_CHK_EN1 0x7ffff7fd |
| #define SEC_BD_ERR_CHK_EN3 0xffffbfff |
| |
| #define SEC_SQE_SIZE 128 |
| #define SEC_SQ_SIZE (SEC_SQE_SIZE * QM_Q_DEPTH) |
| #define SEC_PF_DEF_Q_NUM 256 |
| #define SEC_PF_DEF_Q_BASE 0 |
| #define SEC_CTX_Q_NUM_DEF 2 |
| #define SEC_CTX_Q_NUM_MAX 32 |
| |
| #define SEC_CTRL_CNT_CLR_CE 0x301120 |
| #define SEC_CTRL_CNT_CLR_CE_BIT BIT(0) |
| #define SEC_CORE_INT_SOURCE 0x301010 |
| #define SEC_CORE_INT_MASK 0x301000 |
| #define SEC_CORE_INT_STATUS 0x301008 |
| #define SEC_CORE_SRAM_ECC_ERR_INFO 0x301C14 |
| #define SEC_ECC_NUM 16 |
| #define SEC_ECC_MASH 0xFF |
| #define SEC_CORE_INT_DISABLE 0x0 |
| #define SEC_CORE_INT_ENABLE 0x7c1ff |
| #define SEC_CORE_INT_CLEAR 0x7c1ff |
| #define SEC_SAA_ENABLE 0x17f |
| |
| #define SEC_RAS_CE_REG 0x301050 |
| #define SEC_RAS_FE_REG 0x301054 |
| #define SEC_RAS_NFE_REG 0x301058 |
| #define SEC_RAS_CE_ENB_MSK 0x88 |
| #define SEC_RAS_FE_ENB_MSK 0x0 |
| #define SEC_RAS_NFE_ENB_MSK 0x7c177 |
| #define SEC_OOO_SHUTDOWN_SEL 0x301014 |
| #define SEC_RAS_DISABLE 0x0 |
| #define SEC_MEM_START_INIT_REG 0x301100 |
| #define SEC_MEM_INIT_DONE_REG 0x301104 |
| |
| /* clock gating */ |
| #define SEC_CONTROL_REG 0x301200 |
| #define SEC_DYNAMIC_GATE_REG 0x30121c |
| #define SEC_CORE_AUTO_GATE 0x30212c |
| #define SEC_DYNAMIC_GATE_EN 0x7bff |
| #define SEC_CORE_AUTO_GATE_EN GENMASK(3, 0) |
| #define SEC_CLK_GATE_ENABLE BIT(3) |
| #define SEC_CLK_GATE_DISABLE (~BIT(3)) |
| |
| #define SEC_TRNG_EN_SHIFT 8 |
| #define SEC_AXI_SHUTDOWN_ENABLE BIT(12) |
| #define SEC_AXI_SHUTDOWN_DISABLE 0xFFFFEFFF |
| |
| #define SEC_INTERFACE_USER_CTRL0_REG 0x301220 |
| #define SEC_INTERFACE_USER_CTRL1_REG 0x301224 |
| #define SEC_SAA_EN_REG 0x301270 |
| #define SEC_BD_ERR_CHK_EN_REG0 0x301380 |
| #define SEC_BD_ERR_CHK_EN_REG1 0x301384 |
| #define SEC_BD_ERR_CHK_EN_REG3 0x30138c |
| |
| #define SEC_USER0_SMMU_NORMAL (BIT(23) | BIT(15)) |
| #define SEC_USER1_SMMU_NORMAL (BIT(31) | BIT(23) | BIT(15) | BIT(7)) |
| #define SEC_USER1_ENABLE_CONTEXT_SSV BIT(24) |
| #define SEC_USER1_ENABLE_DATA_SSV BIT(16) |
| #define SEC_USER1_WB_CONTEXT_SSV BIT(8) |
| #define SEC_USER1_WB_DATA_SSV BIT(0) |
| #define SEC_USER1_SVA_SET (SEC_USER1_ENABLE_CONTEXT_SSV | \ |
| SEC_USER1_ENABLE_DATA_SSV | \ |
| SEC_USER1_WB_CONTEXT_SSV | \ |
| SEC_USER1_WB_DATA_SSV) |
| #define SEC_USER1_SMMU_SVA (SEC_USER1_SMMU_NORMAL | SEC_USER1_SVA_SET) |
| #define SEC_USER1_SMMU_MASK (~SEC_USER1_SVA_SET) |
| #define SEC_INTERFACE_USER_CTRL0_REG_V3 0x302220 |
| #define SEC_INTERFACE_USER_CTRL1_REG_V3 0x302224 |
| #define SEC_USER1_SMMU_NORMAL_V3 (BIT(23) | BIT(17) | BIT(11) | BIT(5)) |
| #define SEC_USER1_SMMU_MASK_V3 0xFF79E79E |
| #define SEC_CORE_INT_STATUS_M_ECC BIT(2) |
| |
| #define SEC_PREFETCH_CFG 0x301130 |
| #define SEC_SVA_TRANS 0x301EC4 |
| #define SEC_PREFETCH_ENABLE (~(BIT(0) | BIT(1) | BIT(11))) |
| #define SEC_PREFETCH_DISABLE BIT(1) |
| #define SEC_SVA_DISABLE_READY (BIT(7) | BIT(11)) |
| |
| #define SEC_DELAY_10_US 10 |
| #define SEC_POLL_TIMEOUT_US 1000 |
| #define SEC_DBGFS_VAL_MAX_LEN 20 |
| #define SEC_SINGLE_PORT_MAX_TRANS 0x2060 |
| |
| #define SEC_SQE_MASK_OFFSET 64 |
| #define SEC_SQE_MASK_LEN 48 |
| #define SEC_SHAPER_TYPE_RATE 400 |
| |
| struct sec_hw_error { |
| u32 int_msk; |
| const char *msg; |
| }; |
| |
| struct sec_dfx_item { |
| const char *name; |
| u32 offset; |
| }; |
| |
| static const char sec_name[] = "hisi_sec2"; |
| static struct dentry *sec_debugfs_root; |
| |
| static struct hisi_qm_list sec_devices = { |
| .register_to_crypto = sec_register_to_crypto, |
| .unregister_from_crypto = sec_unregister_from_crypto, |
| }; |
| |
| static const struct sec_hw_error sec_hw_errors[] = { |
| { |
| .int_msk = BIT(0), |
| .msg = "sec_axi_rresp_err_rint" |
| }, |
| { |
| .int_msk = BIT(1), |
| .msg = "sec_axi_bresp_err_rint" |
| }, |
| { |
| .int_msk = BIT(2), |
| .msg = "sec_ecc_2bit_err_rint" |
| }, |
| { |
| .int_msk = BIT(3), |
| .msg = "sec_ecc_1bit_err_rint" |
| }, |
| { |
| .int_msk = BIT(4), |
| .msg = "sec_req_trng_timeout_rint" |
| }, |
| { |
| .int_msk = BIT(5), |
| .msg = "sec_fsm_hbeat_rint" |
| }, |
| { |
| .int_msk = BIT(6), |
| .msg = "sec_channel_req_rng_timeout_rint" |
| }, |
| { |
| .int_msk = BIT(7), |
| .msg = "sec_bd_err_rint" |
| }, |
| { |
| .int_msk = BIT(8), |
| .msg = "sec_chain_buff_err_rint" |
| }, |
| { |
| .int_msk = BIT(14), |
| .msg = "sec_no_secure_access" |
| }, |
| { |
| .int_msk = BIT(15), |
| .msg = "sec_wrapping_key_auth_err" |
| }, |
| { |
| .int_msk = BIT(16), |
| .msg = "sec_km_key_crc_fail" |
| }, |
| { |
| .int_msk = BIT(17), |
| .msg = "sec_axi_poison_err" |
| }, |
| { |
| .int_msk = BIT(18), |
| .msg = "sec_sva_err" |
| }, |
| {} |
| }; |
| |
| static const char * const sec_dbg_file_name[] = { |
| [SEC_CLEAR_ENABLE] = "clear_enable", |
| }; |
| |
| static struct sec_dfx_item sec_dfx_labels[] = { |
| {"send_cnt", offsetof(struct sec_dfx, send_cnt)}, |
| {"recv_cnt", offsetof(struct sec_dfx, recv_cnt)}, |
| {"send_busy_cnt", offsetof(struct sec_dfx, send_busy_cnt)}, |
| {"recv_busy_cnt", offsetof(struct sec_dfx, recv_busy_cnt)}, |
| {"err_bd_cnt", offsetof(struct sec_dfx, err_bd_cnt)}, |
| {"invalid_req_cnt", offsetof(struct sec_dfx, invalid_req_cnt)}, |
| {"done_flag_cnt", offsetof(struct sec_dfx, done_flag_cnt)}, |
| }; |
| |
| static const struct debugfs_reg32 sec_dfx_regs[] = { |
| {"SEC_PF_ABNORMAL_INT_SOURCE ", 0x301010}, |
| {"SEC_SAA_EN ", 0x301270}, |
| {"SEC_BD_LATENCY_MIN ", 0x301600}, |
| {"SEC_BD_LATENCY_MAX ", 0x301608}, |
| {"SEC_BD_LATENCY_AVG ", 0x30160C}, |
| {"SEC_BD_NUM_IN_SAA0 ", 0x301670}, |
| {"SEC_BD_NUM_IN_SAA1 ", 0x301674}, |
| {"SEC_BD_NUM_IN_SEC ", 0x301680}, |
| {"SEC_ECC_1BIT_CNT ", 0x301C00}, |
| {"SEC_ECC_1BIT_INFO ", 0x301C04}, |
| {"SEC_ECC_2BIT_CNT ", 0x301C10}, |
| {"SEC_ECC_2BIT_INFO ", 0x301C14}, |
| {"SEC_BD_SAA0 ", 0x301C20}, |
| {"SEC_BD_SAA1 ", 0x301C24}, |
| {"SEC_BD_SAA2 ", 0x301C28}, |
| {"SEC_BD_SAA3 ", 0x301C2C}, |
| {"SEC_BD_SAA4 ", 0x301C30}, |
| {"SEC_BD_SAA5 ", 0x301C34}, |
| {"SEC_BD_SAA6 ", 0x301C38}, |
| {"SEC_BD_SAA7 ", 0x301C3C}, |
| {"SEC_BD_SAA8 ", 0x301C40}, |
| }; |
| |
| static int sec_pf_q_num_set(const char *val, const struct kernel_param *kp) |
| { |
| return q_num_set(val, kp, PCI_DEVICE_ID_HUAWEI_SEC_PF); |
| } |
| |
| static const struct kernel_param_ops sec_pf_q_num_ops = { |
| .set = sec_pf_q_num_set, |
| .get = param_get_int, |
| }; |
| |
| static u32 pf_q_num = SEC_PF_DEF_Q_NUM; |
| module_param_cb(pf_q_num, &sec_pf_q_num_ops, &pf_q_num, 0444); |
| MODULE_PARM_DESC(pf_q_num, "Number of queues in PF(v1 2-4096, v2 2-1024)"); |
| |
| static int sec_ctx_q_num_set(const char *val, const struct kernel_param *kp) |
| { |
| u32 ctx_q_num; |
| int ret; |
| |
| if (!val) |
| return -EINVAL; |
| |
| ret = kstrtou32(val, 10, &ctx_q_num); |
| if (ret) |
| return -EINVAL; |
| |
| if (!ctx_q_num || ctx_q_num > SEC_CTX_Q_NUM_MAX || ctx_q_num & 0x1) { |
| pr_err("ctx queue num[%u] is invalid!\n", ctx_q_num); |
| return -EINVAL; |
| } |
| |
| return param_set_int(val, kp); |
| } |
| |
| static const struct kernel_param_ops sec_ctx_q_num_ops = { |
| .set = sec_ctx_q_num_set, |
| .get = param_get_int, |
| }; |
| static u32 ctx_q_num = SEC_CTX_Q_NUM_DEF; |
| module_param_cb(ctx_q_num, &sec_ctx_q_num_ops, &ctx_q_num, 0444); |
| MODULE_PARM_DESC(ctx_q_num, "Queue num in ctx (2 default, 2, 4, ..., 32)"); |
| |
| static const struct kernel_param_ops vfs_num_ops = { |
| .set = vfs_num_set, |
| .get = param_get_int, |
| }; |
| |
| static u32 vfs_num; |
| module_param_cb(vfs_num, &vfs_num_ops, &vfs_num, 0444); |
| MODULE_PARM_DESC(vfs_num, "Number of VFs to enable(1-63), 0(default)"); |
| |
| void sec_destroy_qps(struct hisi_qp **qps, int qp_num) |
| { |
| hisi_qm_free_qps(qps, qp_num); |
| kfree(qps); |
| } |
| |
| struct hisi_qp **sec_create_qps(void) |
| { |
| int node = cpu_to_node(smp_processor_id()); |
| u32 ctx_num = ctx_q_num; |
| struct hisi_qp **qps; |
| int ret; |
| |
| qps = kcalloc(ctx_num, sizeof(struct hisi_qp *), GFP_KERNEL); |
| if (!qps) |
| return NULL; |
| |
| ret = hisi_qm_alloc_qps_node(&sec_devices, ctx_num, 0, node, qps); |
| if (!ret) |
| return qps; |
| |
| kfree(qps); |
| return NULL; |
| } |
| |
| static const struct kernel_param_ops sec_uacce_mode_ops = { |
| .set = uacce_mode_set, |
| .get = param_get_int, |
| }; |
| |
| /* |
| * uacce_mode = 0 means sec only register to crypto, |
| * uacce_mode = 1 means sec both register to crypto and uacce. |
| */ |
| static u32 uacce_mode = UACCE_MODE_NOUACCE; |
| module_param_cb(uacce_mode, &sec_uacce_mode_ops, &uacce_mode, 0444); |
| MODULE_PARM_DESC(uacce_mode, UACCE_MODE_DESC); |
| |
| static const struct pci_device_id sec_dev_ids[] = { |
| { PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, PCI_DEVICE_ID_HUAWEI_SEC_PF) }, |
| { PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, PCI_DEVICE_ID_HUAWEI_SEC_VF) }, |
| { 0, } |
| }; |
| MODULE_DEVICE_TABLE(pci, sec_dev_ids); |
| |
| static void sec_set_endian(struct hisi_qm *qm) |
| { |
| u32 reg; |
| |
| reg = readl_relaxed(qm->io_base + SEC_CONTROL_REG); |
| reg &= ~(BIT(1) | BIT(0)); |
| if (!IS_ENABLED(CONFIG_64BIT)) |
| reg |= BIT(1); |
| |
| |
| if (!IS_ENABLED(CONFIG_CPU_LITTLE_ENDIAN)) |
| reg |= BIT(0); |
| |
| writel_relaxed(reg, qm->io_base + SEC_CONTROL_REG); |
| } |
| |
| static void sec_engine_sva_config(struct hisi_qm *qm) |
| { |
| u32 reg; |
| |
| if (qm->ver > QM_HW_V2) { |
| reg = readl_relaxed(qm->io_base + |
| SEC_INTERFACE_USER_CTRL0_REG_V3); |
| reg |= SEC_USER0_SMMU_NORMAL; |
| writel_relaxed(reg, qm->io_base + |
| SEC_INTERFACE_USER_CTRL0_REG_V3); |
| |
| reg = readl_relaxed(qm->io_base + |
| SEC_INTERFACE_USER_CTRL1_REG_V3); |
| reg &= SEC_USER1_SMMU_MASK_V3; |
| reg |= SEC_USER1_SMMU_NORMAL_V3; |
| writel_relaxed(reg, qm->io_base + |
| SEC_INTERFACE_USER_CTRL1_REG_V3); |
| } else { |
| reg = readl_relaxed(qm->io_base + |
| SEC_INTERFACE_USER_CTRL0_REG); |
| reg |= SEC_USER0_SMMU_NORMAL; |
| writel_relaxed(reg, qm->io_base + |
| SEC_INTERFACE_USER_CTRL0_REG); |
| reg = readl_relaxed(qm->io_base + |
| SEC_INTERFACE_USER_CTRL1_REG); |
| reg &= SEC_USER1_SMMU_MASK; |
| if (qm->use_sva) |
| reg |= SEC_USER1_SMMU_SVA; |
| else |
| reg |= SEC_USER1_SMMU_NORMAL; |
| writel_relaxed(reg, qm->io_base + |
| SEC_INTERFACE_USER_CTRL1_REG); |
| } |
| } |
| |
| static void sec_open_sva_prefetch(struct hisi_qm *qm) |
| { |
| u32 val; |
| int ret; |
| |
| if (qm->ver < QM_HW_V3) |
| return; |
| |
| /* Enable prefetch */ |
| val = readl_relaxed(qm->io_base + SEC_PREFETCH_CFG); |
| val &= SEC_PREFETCH_ENABLE; |
| writel(val, qm->io_base + SEC_PREFETCH_CFG); |
| |
| ret = readl_relaxed_poll_timeout(qm->io_base + SEC_PREFETCH_CFG, |
| val, !(val & SEC_PREFETCH_DISABLE), |
| SEC_DELAY_10_US, SEC_POLL_TIMEOUT_US); |
| if (ret) |
| pci_err(qm->pdev, "failed to open sva prefetch\n"); |
| } |
| |
| static void sec_close_sva_prefetch(struct hisi_qm *qm) |
| { |
| u32 val; |
| int ret; |
| |
| if (qm->ver < QM_HW_V3) |
| return; |
| |
| val = readl_relaxed(qm->io_base + SEC_PREFETCH_CFG); |
| val |= SEC_PREFETCH_DISABLE; |
| writel(val, qm->io_base + SEC_PREFETCH_CFG); |
| |
| ret = readl_relaxed_poll_timeout(qm->io_base + SEC_SVA_TRANS, |
| val, !(val & SEC_SVA_DISABLE_READY), |
| SEC_DELAY_10_US, SEC_POLL_TIMEOUT_US); |
| if (ret) |
| pci_err(qm->pdev, "failed to close sva prefetch\n"); |
| } |
| |
| static void sec_enable_clock_gate(struct hisi_qm *qm) |
| { |
| u32 val; |
| |
| if (qm->ver < QM_HW_V3) |
| return; |
| |
| val = readl_relaxed(qm->io_base + SEC_CONTROL_REG); |
| val |= SEC_CLK_GATE_ENABLE; |
| writel_relaxed(val, qm->io_base + SEC_CONTROL_REG); |
| |
| val = readl(qm->io_base + SEC_DYNAMIC_GATE_REG); |
| val |= SEC_DYNAMIC_GATE_EN; |
| writel(val, qm->io_base + SEC_DYNAMIC_GATE_REG); |
| |
| val = readl(qm->io_base + SEC_CORE_AUTO_GATE); |
| val |= SEC_CORE_AUTO_GATE_EN; |
| writel(val, qm->io_base + SEC_CORE_AUTO_GATE); |
| } |
| |
| static void sec_disable_clock_gate(struct hisi_qm *qm) |
| { |
| u32 val; |
| |
| /* Kunpeng920 needs to close clock gating */ |
| val = readl_relaxed(qm->io_base + SEC_CONTROL_REG); |
| val &= SEC_CLK_GATE_DISABLE; |
| writel_relaxed(val, qm->io_base + SEC_CONTROL_REG); |
| } |
| |
| static int sec_engine_init(struct hisi_qm *qm) |
| { |
| int ret; |
| u32 reg; |
| |
| /* disable clock gate control before mem init */ |
| sec_disable_clock_gate(qm); |
| |
| writel_relaxed(0x1, qm->io_base + SEC_MEM_START_INIT_REG); |
| |
| ret = readl_relaxed_poll_timeout(qm->io_base + SEC_MEM_INIT_DONE_REG, |
| reg, reg & 0x1, SEC_DELAY_10_US, |
| SEC_POLL_TIMEOUT_US); |
| if (ret) { |
| pci_err(qm->pdev, "fail to init sec mem\n"); |
| return ret; |
| } |
| |
| reg = readl_relaxed(qm->io_base + SEC_CONTROL_REG); |
| reg |= (0x1 << SEC_TRNG_EN_SHIFT); |
| writel_relaxed(reg, qm->io_base + SEC_CONTROL_REG); |
| |
| sec_engine_sva_config(qm); |
| |
| writel(SEC_SINGLE_PORT_MAX_TRANS, |
| qm->io_base + AM_CFG_SINGLE_PORT_MAX_TRANS); |
| |
| writel(SEC_SAA_ENABLE, qm->io_base + SEC_SAA_EN_REG); |
| |
| /* HW V2 enable sm4 extra mode, as ctr/ecb */ |
| if (qm->ver < QM_HW_V3) |
| writel_relaxed(SEC_BD_ERR_CHK_EN0, |
| qm->io_base + SEC_BD_ERR_CHK_EN_REG0); |
| |
| /* Enable sm4 xts mode multiple iv */ |
| writel_relaxed(SEC_BD_ERR_CHK_EN1, |
| qm->io_base + SEC_BD_ERR_CHK_EN_REG1); |
| writel_relaxed(SEC_BD_ERR_CHK_EN3, |
| qm->io_base + SEC_BD_ERR_CHK_EN_REG3); |
| |
| /* config endian */ |
| sec_set_endian(qm); |
| |
| sec_enable_clock_gate(qm); |
| |
| return 0; |
| } |
| |
| static int sec_set_user_domain_and_cache(struct hisi_qm *qm) |
| { |
| /* qm user domain */ |
| writel(AXUSER_BASE, qm->io_base + QM_ARUSER_M_CFG_1); |
| writel(ARUSER_M_CFG_ENABLE, qm->io_base + QM_ARUSER_M_CFG_ENABLE); |
| writel(AXUSER_BASE, qm->io_base + QM_AWUSER_M_CFG_1); |
| writel(AWUSER_M_CFG_ENABLE, qm->io_base + QM_AWUSER_M_CFG_ENABLE); |
| writel(WUSER_M_CFG_ENABLE, qm->io_base + QM_WUSER_M_CFG_ENABLE); |
| |
| /* qm cache */ |
| writel(AXI_M_CFG, qm->io_base + QM_AXI_M_CFG); |
| writel(AXI_M_CFG_ENABLE, qm->io_base + QM_AXI_M_CFG_ENABLE); |
| |
| /* disable FLR triggered by BME(bus master enable) */ |
| writel(PEH_AXUSER_CFG, qm->io_base + QM_PEH_AXUSER_CFG); |
| writel(PEH_AXUSER_CFG_ENABLE, qm->io_base + QM_PEH_AXUSER_CFG_ENABLE); |
| |
| /* enable sqc,cqc writeback */ |
| writel(SQC_CACHE_ENABLE | CQC_CACHE_ENABLE | SQC_CACHE_WB_ENABLE | |
| CQC_CACHE_WB_ENABLE | FIELD_PREP(SQC_CACHE_WB_THRD, 1) | |
| FIELD_PREP(CQC_CACHE_WB_THRD, 1), qm->io_base + QM_CACHE_CTL); |
| |
| return sec_engine_init(qm); |
| } |
| |
| /* sec_debug_regs_clear() - clear the sec debug regs */ |
| static void sec_debug_regs_clear(struct hisi_qm *qm) |
| { |
| int i; |
| |
| /* clear sec dfx regs */ |
| writel(0x1, qm->io_base + SEC_CTRL_CNT_CLR_CE); |
| for (i = 0; i < ARRAY_SIZE(sec_dfx_regs); i++) |
| readl(qm->io_base + sec_dfx_regs[i].offset); |
| |
| /* clear rdclr_en */ |
| writel(0x0, qm->io_base + SEC_CTRL_CNT_CLR_CE); |
| |
| hisi_qm_debug_regs_clear(qm); |
| } |
| |
| static void sec_master_ooo_ctrl(struct hisi_qm *qm, bool enable) |
| { |
| u32 val1, val2; |
| |
| val1 = readl(qm->io_base + SEC_CONTROL_REG); |
| if (enable) { |
| val1 |= SEC_AXI_SHUTDOWN_ENABLE; |
| val2 = SEC_RAS_NFE_ENB_MSK; |
| } else { |
| val1 &= SEC_AXI_SHUTDOWN_DISABLE; |
| val2 = 0x0; |
| } |
| |
| if (qm->ver > QM_HW_V2) |
| writel(val2, qm->io_base + SEC_OOO_SHUTDOWN_SEL); |
| |
| writel(val1, qm->io_base + SEC_CONTROL_REG); |
| } |
| |
| static void sec_hw_error_enable(struct hisi_qm *qm) |
| { |
| if (qm->ver == QM_HW_V1) { |
| writel(SEC_CORE_INT_DISABLE, qm->io_base + SEC_CORE_INT_MASK); |
| pci_info(qm->pdev, "V1 not support hw error handle\n"); |
| return; |
| } |
| |
| /* clear SEC hw error source if having */ |
| writel(SEC_CORE_INT_CLEAR, qm->io_base + SEC_CORE_INT_SOURCE); |
| |
| /* enable RAS int */ |
| writel(SEC_RAS_CE_ENB_MSK, qm->io_base + SEC_RAS_CE_REG); |
| writel(SEC_RAS_FE_ENB_MSK, qm->io_base + SEC_RAS_FE_REG); |
| writel(SEC_RAS_NFE_ENB_MSK, qm->io_base + SEC_RAS_NFE_REG); |
| |
| /* enable SEC block master OOO when nfe occurs on Kunpeng930 */ |
| sec_master_ooo_ctrl(qm, true); |
| |
| /* enable SEC hw error interrupts */ |
| writel(SEC_CORE_INT_ENABLE, qm->io_base + SEC_CORE_INT_MASK); |
| } |
| |
| static void sec_hw_error_disable(struct hisi_qm *qm) |
| { |
| /* disable SEC hw error interrupts */ |
| writel(SEC_CORE_INT_DISABLE, qm->io_base + SEC_CORE_INT_MASK); |
| |
| /* disable SEC block master OOO when nfe occurs on Kunpeng930 */ |
| sec_master_ooo_ctrl(qm, false); |
| |
| /* disable RAS int */ |
| writel(SEC_RAS_DISABLE, qm->io_base + SEC_RAS_CE_REG); |
| writel(SEC_RAS_DISABLE, qm->io_base + SEC_RAS_FE_REG); |
| writel(SEC_RAS_DISABLE, qm->io_base + SEC_RAS_NFE_REG); |
| } |
| |
| static u32 sec_clear_enable_read(struct hisi_qm *qm) |
| { |
| return readl(qm->io_base + SEC_CTRL_CNT_CLR_CE) & |
| SEC_CTRL_CNT_CLR_CE_BIT; |
| } |
| |
| static int sec_clear_enable_write(struct hisi_qm *qm, u32 val) |
| { |
| u32 tmp; |
| |
| if (val != 1 && val) |
| return -EINVAL; |
| |
| tmp = (readl(qm->io_base + SEC_CTRL_CNT_CLR_CE) & |
| ~SEC_CTRL_CNT_CLR_CE_BIT) | val; |
| writel(tmp, qm->io_base + SEC_CTRL_CNT_CLR_CE); |
| |
| return 0; |
| } |
| |
| static ssize_t sec_debug_read(struct file *filp, char __user *buf, |
| size_t count, loff_t *pos) |
| { |
| struct sec_debug_file *file = filp->private_data; |
| char tbuf[SEC_DBGFS_VAL_MAX_LEN]; |
| struct hisi_qm *qm = file->qm; |
| u32 val; |
| int ret; |
| |
| ret = hisi_qm_get_dfx_access(qm); |
| if (ret) |
| return ret; |
| |
| spin_lock_irq(&file->lock); |
| |
| switch (file->index) { |
| case SEC_CLEAR_ENABLE: |
| val = sec_clear_enable_read(qm); |
| break; |
| default: |
| goto err_input; |
| } |
| |
| spin_unlock_irq(&file->lock); |
| |
| hisi_qm_put_dfx_access(qm); |
| ret = snprintf(tbuf, SEC_DBGFS_VAL_MAX_LEN, "%u\n", val); |
| return simple_read_from_buffer(buf, count, pos, tbuf, ret); |
| |
| err_input: |
| spin_unlock_irq(&file->lock); |
| hisi_qm_put_dfx_access(qm); |
| return -EINVAL; |
| } |
| |
| static ssize_t sec_debug_write(struct file *filp, const char __user *buf, |
| size_t count, loff_t *pos) |
| { |
| struct sec_debug_file *file = filp->private_data; |
| char tbuf[SEC_DBGFS_VAL_MAX_LEN]; |
| struct hisi_qm *qm = file->qm; |
| unsigned long val; |
| int len, ret; |
| |
| if (*pos != 0) |
| return 0; |
| |
| if (count >= SEC_DBGFS_VAL_MAX_LEN) |
| return -ENOSPC; |
| |
| len = simple_write_to_buffer(tbuf, SEC_DBGFS_VAL_MAX_LEN - 1, |
| pos, buf, count); |
| if (len < 0) |
| return len; |
| |
| tbuf[len] = '\0'; |
| if (kstrtoul(tbuf, 0, &val)) |
| return -EFAULT; |
| |
| ret = hisi_qm_get_dfx_access(qm); |
| if (ret) |
| return ret; |
| |
| spin_lock_irq(&file->lock); |
| |
| switch (file->index) { |
| case SEC_CLEAR_ENABLE: |
| ret = sec_clear_enable_write(qm, val); |
| if (ret) |
| goto err_input; |
| break; |
| default: |
| ret = -EINVAL; |
| goto err_input; |
| } |
| |
| ret = count; |
| |
| err_input: |
| spin_unlock_irq(&file->lock); |
| hisi_qm_put_dfx_access(qm); |
| return ret; |
| } |
| |
| static const struct file_operations sec_dbg_fops = { |
| .owner = THIS_MODULE, |
| .open = simple_open, |
| .read = sec_debug_read, |
| .write = sec_debug_write, |
| }; |
| |
| static int sec_debugfs_atomic64_get(void *data, u64 *val) |
| { |
| *val = atomic64_read((atomic64_t *)data); |
| |
| return 0; |
| } |
| |
| static int sec_debugfs_atomic64_set(void *data, u64 val) |
| { |
| if (val) |
| return -EINVAL; |
| |
| atomic64_set((atomic64_t *)data, 0); |
| |
| return 0; |
| } |
| |
| DEFINE_DEBUGFS_ATTRIBUTE(sec_atomic64_ops, sec_debugfs_atomic64_get, |
| sec_debugfs_atomic64_set, "%lld\n"); |
| |
| static int sec_regs_show(struct seq_file *s, void *unused) |
| { |
| hisi_qm_regs_dump(s, s->private); |
| |
| return 0; |
| } |
| |
| DEFINE_SHOW_ATTRIBUTE(sec_regs); |
| |
| static int sec_core_debug_init(struct hisi_qm *qm) |
| { |
| struct sec_dev *sec = container_of(qm, struct sec_dev, qm); |
| struct device *dev = &qm->pdev->dev; |
| struct sec_dfx *dfx = &sec->debug.dfx; |
| struct debugfs_regset32 *regset; |
| struct dentry *tmp_d; |
| int i; |
| |
| tmp_d = debugfs_create_dir("sec_dfx", qm->debug.debug_root); |
| |
| regset = devm_kzalloc(dev, sizeof(*regset), GFP_KERNEL); |
| if (!regset) |
| return -ENOMEM; |
| |
| regset->regs = sec_dfx_regs; |
| regset->nregs = ARRAY_SIZE(sec_dfx_regs); |
| regset->base = qm->io_base; |
| regset->dev = dev; |
| |
| if (qm->pdev->device == PCI_DEVICE_ID_HUAWEI_SEC_PF) |
| debugfs_create_file("regs", 0444, tmp_d, regset, &sec_regs_fops); |
| |
| for (i = 0; i < ARRAY_SIZE(sec_dfx_labels); i++) { |
| atomic64_t *data = (atomic64_t *)((uintptr_t)dfx + |
| sec_dfx_labels[i].offset); |
| debugfs_create_file(sec_dfx_labels[i].name, 0644, |
| tmp_d, data, &sec_atomic64_ops); |
| } |
| |
| return 0; |
| } |
| |
| static int sec_debug_init(struct hisi_qm *qm) |
| { |
| struct sec_dev *sec = container_of(qm, struct sec_dev, qm); |
| int i; |
| |
| if (qm->pdev->device == PCI_DEVICE_ID_HUAWEI_SEC_PF) { |
| for (i = SEC_CLEAR_ENABLE; i < SEC_DEBUG_FILE_NUM; i++) { |
| spin_lock_init(&sec->debug.files[i].lock); |
| sec->debug.files[i].index = i; |
| sec->debug.files[i].qm = qm; |
| |
| debugfs_create_file(sec_dbg_file_name[i], 0600, |
| qm->debug.debug_root, |
| sec->debug.files + i, |
| &sec_dbg_fops); |
| } |
| } |
| |
| return sec_core_debug_init(qm); |
| } |
| |
| static int sec_debugfs_init(struct hisi_qm *qm) |
| { |
| struct device *dev = &qm->pdev->dev; |
| int ret; |
| |
| qm->debug.debug_root = debugfs_create_dir(dev_name(dev), |
| sec_debugfs_root); |
| qm->debug.sqe_mask_offset = SEC_SQE_MASK_OFFSET; |
| qm->debug.sqe_mask_len = SEC_SQE_MASK_LEN; |
| hisi_qm_debug_init(qm); |
| |
| ret = sec_debug_init(qm); |
| if (ret) |
| goto failed_to_create; |
| |
| return 0; |
| |
| failed_to_create: |
| debugfs_remove_recursive(sec_debugfs_root); |
| return ret; |
| } |
| |
| static void sec_debugfs_exit(struct hisi_qm *qm) |
| { |
| debugfs_remove_recursive(qm->debug.debug_root); |
| } |
| |
| static void sec_log_hw_error(struct hisi_qm *qm, u32 err_sts) |
| { |
| const struct sec_hw_error *errs = sec_hw_errors; |
| struct device *dev = &qm->pdev->dev; |
| u32 err_val; |
| |
| while (errs->msg) { |
| if (errs->int_msk & err_sts) { |
| dev_err(dev, "%s [error status=0x%x] found\n", |
| errs->msg, errs->int_msk); |
| |
| if (SEC_CORE_INT_STATUS_M_ECC & errs->int_msk) { |
| err_val = readl(qm->io_base + |
| SEC_CORE_SRAM_ECC_ERR_INFO); |
| dev_err(dev, "multi ecc sram num=0x%x\n", |
| ((err_val) >> SEC_ECC_NUM) & |
| SEC_ECC_MASH); |
| } |
| } |
| errs++; |
| } |
| } |
| |
| static u32 sec_get_hw_err_status(struct hisi_qm *qm) |
| { |
| return readl(qm->io_base + SEC_CORE_INT_STATUS); |
| } |
| |
| static void sec_clear_hw_err_status(struct hisi_qm *qm, u32 err_sts) |
| { |
| writel(err_sts, qm->io_base + SEC_CORE_INT_SOURCE); |
| } |
| |
| static void sec_open_axi_master_ooo(struct hisi_qm *qm) |
| { |
| u32 val; |
| |
| val = readl(qm->io_base + SEC_CONTROL_REG); |
| writel(val & SEC_AXI_SHUTDOWN_DISABLE, qm->io_base + SEC_CONTROL_REG); |
| writel(val | SEC_AXI_SHUTDOWN_ENABLE, qm->io_base + SEC_CONTROL_REG); |
| } |
| |
| static void sec_err_info_init(struct hisi_qm *qm) |
| { |
| struct hisi_qm_err_info *err_info = &qm->err_info; |
| |
| err_info->ce = QM_BASE_CE; |
| err_info->fe = 0; |
| err_info->ecc_2bits_mask = SEC_CORE_INT_STATUS_M_ECC; |
| err_info->dev_ce_mask = SEC_RAS_CE_ENB_MSK; |
| err_info->msi_wr_port = BIT(0); |
| err_info->acpi_rst = "SRST"; |
| err_info->nfe = QM_BASE_NFE | QM_ACC_DO_TASK_TIMEOUT | |
| QM_ACC_WB_NOT_READY_TIMEOUT; |
| } |
| |
| static const struct hisi_qm_err_ini sec_err_ini = { |
| .hw_init = sec_set_user_domain_and_cache, |
| .hw_err_enable = sec_hw_error_enable, |
| .hw_err_disable = sec_hw_error_disable, |
| .get_dev_hw_err_status = sec_get_hw_err_status, |
| .clear_dev_hw_err_status = sec_clear_hw_err_status, |
| .log_dev_hw_err = sec_log_hw_error, |
| .open_axi_master_ooo = sec_open_axi_master_ooo, |
| .open_sva_prefetch = sec_open_sva_prefetch, |
| .close_sva_prefetch = sec_close_sva_prefetch, |
| .err_info_init = sec_err_info_init, |
| }; |
| |
| static int sec_pf_probe_init(struct sec_dev *sec) |
| { |
| struct hisi_qm *qm = &sec->qm; |
| int ret; |
| |
| qm->err_ini = &sec_err_ini; |
| qm->err_ini->err_info_init(qm); |
| |
| ret = sec_set_user_domain_and_cache(qm); |
| if (ret) |
| return ret; |
| |
| sec_open_sva_prefetch(qm); |
| hisi_qm_dev_err_init(qm); |
| sec_debug_regs_clear(qm); |
| |
| return 0; |
| } |
| |
| static int sec_qm_init(struct hisi_qm *qm, struct pci_dev *pdev) |
| { |
| int ret; |
| |
| qm->pdev = pdev; |
| qm->ver = pdev->revision; |
| qm->algs = "cipher\ndigest\naead"; |
| qm->mode = uacce_mode; |
| qm->sqe_size = SEC_SQE_SIZE; |
| qm->dev_name = sec_name; |
| |
| qm->fun_type = (pdev->device == PCI_DEVICE_ID_HUAWEI_SEC_PF) ? |
| QM_HW_PF : QM_HW_VF; |
| if (qm->fun_type == QM_HW_PF) { |
| qm->qp_base = SEC_PF_DEF_Q_BASE; |
| qm->qp_num = pf_q_num; |
| qm->debug.curr_qm_qp_num = pf_q_num; |
| qm->qm_list = &sec_devices; |
| } else if (qm->fun_type == QM_HW_VF && qm->ver == QM_HW_V1) { |
| /* |
| * have no way to get qm configure in VM in v1 hardware, |
| * so currently force PF to uses SEC_PF_DEF_Q_NUM, and force |
| * to trigger only one VF in v1 hardware. |
| * v2 hardware has no such problem. |
| */ |
| qm->qp_base = SEC_PF_DEF_Q_NUM; |
| qm->qp_num = SEC_QUEUE_NUM_V1 - SEC_PF_DEF_Q_NUM; |
| } |
| |
| /* |
| * WQ_HIGHPRI: SEC request must be low delayed, |
| * so need a high priority workqueue. |
| * WQ_UNBOUND: SEC task is likely with long |
| * running CPU intensive workloads. |
| */ |
| qm->wq = alloc_workqueue("%s", WQ_HIGHPRI | WQ_MEM_RECLAIM | |
| WQ_UNBOUND, num_online_cpus(), |
| pci_name(qm->pdev)); |
| if (!qm->wq) { |
| pci_err(qm->pdev, "fail to alloc workqueue\n"); |
| return -ENOMEM; |
| } |
| |
| ret = hisi_qm_init(qm); |
| if (ret) |
| destroy_workqueue(qm->wq); |
| |
| return ret; |
| } |
| |
| static void sec_qm_uninit(struct hisi_qm *qm) |
| { |
| hisi_qm_uninit(qm); |
| } |
| |
| static int sec_probe_init(struct sec_dev *sec) |
| { |
| u32 type_rate = SEC_SHAPER_TYPE_RATE; |
| struct hisi_qm *qm = &sec->qm; |
| int ret; |
| |
| if (qm->fun_type == QM_HW_PF) { |
| ret = sec_pf_probe_init(sec); |
| if (ret) |
| return ret; |
| /* enable shaper type 0 */ |
| if (qm->ver >= QM_HW_V3) { |
| type_rate |= QM_SHAPER_ENABLE; |
| qm->type_rate = type_rate; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static void sec_probe_uninit(struct hisi_qm *qm) |
| { |
| hisi_qm_dev_err_uninit(qm); |
| |
| destroy_workqueue(qm->wq); |
| } |
| |
| static void sec_iommu_used_check(struct sec_dev *sec) |
| { |
| struct iommu_domain *domain; |
| struct device *dev = &sec->qm.pdev->dev; |
| |
| domain = iommu_get_domain_for_dev(dev); |
| |
| /* Check if iommu is used */ |
| sec->iommu_used = false; |
| if (domain) { |
| if (domain->type & __IOMMU_DOMAIN_PAGING) |
| sec->iommu_used = true; |
| dev_info(dev, "SMMU Opened, the iommu type = %u\n", |
| domain->type); |
| } |
| } |
| |
| static int sec_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
| { |
| struct sec_dev *sec; |
| struct hisi_qm *qm; |
| int ret; |
| |
| sec = devm_kzalloc(&pdev->dev, sizeof(*sec), GFP_KERNEL); |
| if (!sec) |
| return -ENOMEM; |
| |
| qm = &sec->qm; |
| ret = sec_qm_init(qm, pdev); |
| if (ret) { |
| pci_err(pdev, "Failed to init SEC QM (%d)!\n", ret); |
| return ret; |
| } |
| |
| sec->ctx_q_num = ctx_q_num; |
| sec_iommu_used_check(sec); |
| |
| ret = sec_probe_init(sec); |
| if (ret) { |
| pci_err(pdev, "Failed to probe!\n"); |
| goto err_qm_uninit; |
| } |
| |
| ret = hisi_qm_start(qm); |
| if (ret) { |
| pci_err(pdev, "Failed to start sec qm!\n"); |
| goto err_probe_uninit; |
| } |
| |
| ret = sec_debugfs_init(qm); |
| if (ret) |
| pci_warn(pdev, "Failed to init debugfs!\n"); |
| |
| if (qm->qp_num >= ctx_q_num) { |
| ret = hisi_qm_alg_register(qm, &sec_devices); |
| if (ret < 0) { |
| pr_err("Failed to register driver to crypto.\n"); |
| goto err_qm_stop; |
| } |
| } else { |
| pci_warn(qm->pdev, |
| "Failed to use kernel mode, qp not enough!\n"); |
| } |
| |
| if (qm->uacce) { |
| ret = uacce_register(qm->uacce); |
| if (ret) { |
| pci_err(pdev, "failed to register uacce (%d)!\n", ret); |
| goto err_alg_unregister; |
| } |
| } |
| |
| if (qm->fun_type == QM_HW_PF && vfs_num) { |
| ret = hisi_qm_sriov_enable(pdev, vfs_num); |
| if (ret < 0) |
| goto err_alg_unregister; |
| } |
| |
| hisi_qm_pm_init(qm); |
| |
| return 0; |
| |
| err_alg_unregister: |
| if (qm->qp_num >= ctx_q_num) |
| hisi_qm_alg_unregister(qm, &sec_devices); |
| err_qm_stop: |
| sec_debugfs_exit(qm); |
| hisi_qm_stop(qm, QM_NORMAL); |
| err_probe_uninit: |
| sec_probe_uninit(qm); |
| err_qm_uninit: |
| sec_qm_uninit(qm); |
| return ret; |
| } |
| |
| static void sec_remove(struct pci_dev *pdev) |
| { |
| struct hisi_qm *qm = pci_get_drvdata(pdev); |
| |
| hisi_qm_pm_uninit(qm); |
| hisi_qm_wait_task_finish(qm, &sec_devices); |
| if (qm->qp_num >= ctx_q_num) |
| hisi_qm_alg_unregister(qm, &sec_devices); |
| |
| if (qm->fun_type == QM_HW_PF && qm->vfs_num) |
| hisi_qm_sriov_disable(pdev, true); |
| |
| sec_debugfs_exit(qm); |
| |
| (void)hisi_qm_stop(qm, QM_NORMAL); |
| |
| if (qm->fun_type == QM_HW_PF) |
| sec_debug_regs_clear(qm); |
| |
| sec_probe_uninit(qm); |
| |
| sec_qm_uninit(qm); |
| } |
| |
| static const struct dev_pm_ops sec_pm_ops = { |
| SET_RUNTIME_PM_OPS(hisi_qm_suspend, hisi_qm_resume, NULL) |
| }; |
| |
| static const struct pci_error_handlers sec_err_handler = { |
| .error_detected = hisi_qm_dev_err_detected, |
| .slot_reset = hisi_qm_dev_slot_reset, |
| .reset_prepare = hisi_qm_reset_prepare, |
| .reset_done = hisi_qm_reset_done, |
| }; |
| |
| static struct pci_driver sec_pci_driver = { |
| .name = "hisi_sec2", |
| .id_table = sec_dev_ids, |
| .probe = sec_probe, |
| .remove = sec_remove, |
| .err_handler = &sec_err_handler, |
| .sriov_configure = hisi_qm_sriov_configure, |
| .shutdown = hisi_qm_dev_shutdown, |
| .driver.pm = &sec_pm_ops, |
| }; |
| |
| struct pci_driver *hisi_sec_get_pf_driver(void) |
| { |
| return &sec_pci_driver; |
| } |
| EXPORT_SYMBOL_GPL(hisi_sec_get_pf_driver); |
| |
| static void sec_register_debugfs(void) |
| { |
| if (!debugfs_initialized()) |
| return; |
| |
| sec_debugfs_root = debugfs_create_dir("hisi_sec2", NULL); |
| } |
| |
| static void sec_unregister_debugfs(void) |
| { |
| debugfs_remove_recursive(sec_debugfs_root); |
| } |
| |
| static int __init sec_init(void) |
| { |
| int ret; |
| |
| hisi_qm_init_list(&sec_devices); |
| sec_register_debugfs(); |
| |
| ret = pci_register_driver(&sec_pci_driver); |
| if (ret < 0) { |
| sec_unregister_debugfs(); |
| pr_err("Failed to register pci driver.\n"); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static void __exit sec_exit(void) |
| { |
| pci_unregister_driver(&sec_pci_driver); |
| sec_unregister_debugfs(); |
| } |
| |
| module_init(sec_init); |
| module_exit(sec_exit); |
| |
| MODULE_LICENSE("GPL v2"); |
| MODULE_AUTHOR("Zaibo Xu <xuzaibo@huawei.com>"); |
| MODULE_AUTHOR("Longfang Liu <liulongfang@huawei.com>"); |
| MODULE_AUTHOR("Kai Ye <yekai13@huawei.com>"); |
| MODULE_AUTHOR("Wei Zhang <zhangwei375@huawei.com>"); |
| MODULE_DESCRIPTION("Driver for HiSilicon SEC accelerator"); |