diff options
Diffstat (limited to 'drivers/crypto/hisilicon/hpre/hpre_main.c')
| -rw-r--r-- | drivers/crypto/hisilicon/hpre/hpre_main.c | 538 |
1 files changed, 374 insertions, 164 deletions
diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c index 923f9c279265..b94fecd765ee 100644 --- a/drivers/crypto/hisilicon/hpre/hpre_main.c +++ b/drivers/crypto/hisilicon/hpre/hpre_main.c @@ -1,7 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2018-2019 HiSilicon Limited. */ #include <linux/acpi.h> -#include <linux/aer.h> #include <linux/bitops.h> #include <linux/debugfs.h> #include <linux/init.h> @@ -14,9 +13,8 @@ #include <linux/uacce.h> #include "hpre.h" -#define HPRE_QM_ABNML_INT_MASK 0x100004 +#define CAP_FILE_PERMISSION 0444 #define HPRE_CTRL_CNT_CLR_CE_BIT BIT(0) -#define HPRE_COMM_CNT_CLR_CE 0x0 #define HPRE_CTRL_CNT_CLR_CE 0x301000 #define HPRE_FSM_MAX_CNT 0x301008 #define HPRE_VFG_AXQOS 0x30100c @@ -41,9 +39,9 @@ #define HPRE_HAC_RAS_NFE_ENB 0x301414 #define HPRE_HAC_RAS_FE_ENB 0x301418 #define HPRE_HAC_INT_SET 0x301500 +#define HPRE_AXI_ERROR_MASK GENMASK(21, 10) #define HPRE_RNG_TIMEOUT_NUM 0x301A34 #define HPRE_CORE_INT_ENABLE 0 -#define HPRE_CORE_INT_DISABLE GENMASK(21, 0) #define HPRE_RDCHN_INI_ST 0x301a00 #define HPRE_CLSTR_BASE 0x302000 #define HPRE_CORE_EN_OFFSET 0x04 @@ -67,7 +65,6 @@ #define HPRE_CLSTR_ADDR_INTRVL 0x1000 #define HPRE_CLUSTER_INQURY 0x100 #define HPRE_CLSTR_ADDR_INQRY_RSLT 0x104 -#define HPRE_TIMEOUT_ABNML_BIT 6 #define HPRE_PASID_EN_BIT 9 #define HPRE_REG_RD_INTVRL_US 10 #define HPRE_REG_RD_TMOUT_US 1000 @@ -82,6 +79,11 @@ #define HPRE_PREFETCH_ENABLE (~(BIT(0) | BIT(30))) #define HPRE_PREFETCH_DISABLE BIT(30) #define HPRE_SVA_DISABLE_READY (BIT(4) | BIT(8)) +#define HPRE_SVA_PREFTCH_DFX4 0x301144 +#define HPRE_WAIT_SVA_READY 500000 +#define HPRE_READ_SVA_STATUS_TIMES 3 +#define HPRE_WAIT_US_MIN 10 +#define HPRE_WAIT_US_MAX 20 /* clock gate */ #define HPRE_CLKGATE_CTL 0x301a10 @@ -107,7 +109,8 @@ #define HPRE_SHAPER_TYPE_RATE 640 #define HPRE_VIA_MSI_DSM 1 #define HPRE_SQE_MASK_OFFSET 8 -#define HPRE_SQE_MASK_LEN 24 +#define HPRE_SQE_MASK_LEN 44 +#define HPRE_CTX_Q_NUM_DEF 1 #define HPRE_DFX_BASE 0x301000 #define HPRE_DFX_COMMON1 0x301400 @@ -118,8 +121,6 @@ #define HPRE_DFX_COMMON2_LEN 0xE #define HPRE_DFX_CORE_LEN 0x43 -#define HPRE_DEV_ALG_MAX_LEN 256 - static const char hpre_name[] = "hisi_hpre"; static struct dentry *hpre_debugfs_root; static const struct pci_device_id hpre_dev_ids[] = { @@ -135,12 +136,7 @@ struct hpre_hw_error { const char *msg; }; -struct hpre_dev_alg { - u32 alg_msk; - const char *alg; -}; - -static const struct hpre_dev_alg hpre_dev_algs[] = { +static const struct qm_dev_alg hpre_dev_algs[] = { { .alg_msk = BIT(0), .alg = "rsa\n" @@ -210,11 +206,11 @@ static const struct hisi_qm_cap_info hpre_basic_info[] = { {HPRE_QM_RESET_MASK_CAP, 0x3128, 0, GENMASK(31, 0), 0x0, 0xC37, 0x6C37}, {HPRE_QM_OOO_SHUTDOWN_MASK_CAP, 0x3128, 0, GENMASK(31, 0), 0x0, 0x4, 0x6C37}, {HPRE_QM_CE_MASK_CAP, 0x312C, 0, GENMASK(31, 0), 0x0, 0x8, 0x8}, - {HPRE_NFE_MASK_CAP, 0x3130, 0, GENMASK(31, 0), 0x0, 0x3FFFFE, 0xFFFFFE}, - {HPRE_RESET_MASK_CAP, 0x3134, 0, GENMASK(31, 0), 0x0, 0x3FFFFE, 0xBFFFFE}, - {HPRE_OOO_SHUTDOWN_MASK_CAP, 0x3134, 0, GENMASK(31, 0), 0x0, 0x22, 0xBFFFFE}, + {HPRE_NFE_MASK_CAP, 0x3130, 0, GENMASK(31, 0), 0x0, 0x3FFFFE, 0x1FFFC3E}, + {HPRE_RESET_MASK_CAP, 0x3134, 0, GENMASK(31, 0), 0x0, 0x3FFFFE, 0xBFFC3E}, + {HPRE_OOO_SHUTDOWN_MASK_CAP, 0x3134, 0, GENMASK(31, 0), 0x0, 0x22, 0xBFFC3E}, {HPRE_CE_MASK_CAP, 0x3138, 0, GENMASK(31, 0), 0x0, 0x1, 0x1}, - {HPRE_CLUSTER_NUM_CAP, 0x313c, 20, GENMASK(3, 0), 0x0, 0x4, 0x1}, + {HPRE_CLUSTER_NUM_CAP, 0x313c, 20, GENMASK(3, 0), 0x0, 0x4, 0x1}, {HPRE_CORE_TYPE_NUM_CAP, 0x313c, 16, GENMASK(3, 0), 0x0, 0x2, 0x2}, {HPRE_CORE_NUM_CAP, 0x313c, 8, GENMASK(7, 0), 0x0, 0x8, 0xA}, {HPRE_CLUSTER_CORE_NUM_CAP, 0x313c, 0, GENMASK(7, 0), 0x0, 0x2, 0xA}, @@ -233,6 +229,29 @@ static const struct hisi_qm_cap_info hpre_basic_info[] = { {HPRE_CORE10_ALG_BITMAP_CAP, 0x3170, 0, GENMASK(31, 0), 0x0, 0x10, 0x10} }; +static const struct hisi_qm_cap_query_info hpre_cap_query_info[] = { + {QM_RAS_NFE_TYPE, "QM_RAS_NFE_TYPE ", 0x3124, 0x0, 0x1C37, 0x7C37}, + {QM_RAS_NFE_RESET, "QM_RAS_NFE_RESET ", 0x3128, 0x0, 0xC77, 0x6C77}, + {QM_RAS_CE_TYPE, "QM_RAS_CE_TYPE ", 0x312C, 0x0, 0x8, 0x8}, + {HPRE_RAS_NFE_TYPE, "HPRE_RAS_NFE_TYPE ", 0x3130, 0x0, 0x3FFFFE, 0x1FFFC3E}, + {HPRE_RAS_NFE_RESET, "HPRE_RAS_NFE_RESET ", 0x3134, 0x0, 0x3FFFFE, 0xBFFC3E}, + {HPRE_RAS_CE_TYPE, "HPRE_RAS_CE_TYPE ", 0x3138, 0x0, 0x1, 0x1}, + {HPRE_CORE_INFO, "HPRE_CORE_INFO ", 0x313c, 0x0, 0x420802, 0x120A0A}, + {HPRE_CORE_EN, "HPRE_CORE_EN ", 0x3140, 0x0, 0xF, 0x3FF}, + {HPRE_DRV_ALG_BITMAP, "HPRE_DRV_ALG_BITMAP ", 0x3144, 0x0, 0x03, 0x27}, + {HPRE_ALG_BITMAP, "HPRE_ALG_BITMAP ", 0x3148, 0x0, 0x03, 0x7F}, + {HPRE_CORE1_BITMAP_CAP, "HPRE_CORE1_BITMAP_CAP ", 0x314c, 0x0, 0x7F, 0x7F}, + {HPRE_CORE2_BITMAP_CAP, "HPRE_CORE2_BITMAP_CAP ", 0x3150, 0x0, 0x7F, 0x7F}, + {HPRE_CORE3_BITMAP_CAP, "HPRE_CORE3_BITMAP_CAP ", 0x3154, 0x0, 0x7F, 0x7F}, + {HPRE_CORE4_BITMAP_CAP, "HPRE_CORE4_BITMAP_CAP ", 0x3158, 0x0, 0x7F, 0x7F}, + {HPRE_CORE5_BITMAP_CAP, "HPRE_CORE5_BITMAP_CAP ", 0x315c, 0x0, 0x7F, 0x7F}, + {HPRE_CORE6_BITMAP_CAP, "HPRE_CORE6_BITMAP_CAP ", 0x3160, 0x0, 0x7F, 0x7F}, + {HPRE_CORE7_BITMAP_CAP, "HPRE_CORE7_BITMAP_CAP ", 0x3164, 0x0, 0x7F, 0x7F}, + {HPRE_CORE8_BITMAP_CAP, "HPRE_CORE8_BITMAP_CAP ", 0x3168, 0x0, 0x7F, 0x7F}, + {HPRE_CORE9_BITMAP_CAP, "HPRE_CORE9_BITMAP_CAP ", 0x316c, 0x0, 0x10, 0x10}, + {HPRE_CORE10_BITMAP_CAP, "HPRE_CORE10_BITMAP_CAP ", 0x3170, 0x0, 0x10, 0x10}, +}; + static const struct hpre_hw_error hpre_hw_errors[] = { { .int_msk = BIT(0), @@ -277,6 +296,9 @@ static const struct hpre_hw_error hpre_hw_errors[] = { .int_msk = BIT(23), .msg = "sva_fsm_timeout_int_set" }, { + .int_msk = BIT(24), + .msg = "sva_int_set" + }, { /* sentinel */ } }; @@ -348,46 +370,19 @@ static struct dfx_diff_registers hpre_diff_regs[] = { }, }; +static const struct hisi_qm_err_ini hpre_err_ini; + bool hpre_check_alg_support(struct hisi_qm *qm, u32 alg) { u32 cap_val; - cap_val = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_DRV_ALG_BITMAP_CAP, qm->cap_ver); + cap_val = qm->cap_tables.dev_cap_table[HPRE_DRV_ALG_BITMAP].cap_val; if (alg & cap_val) return true; return false; } -static int hpre_set_qm_algs(struct hisi_qm *qm) -{ - struct device *dev = &qm->pdev->dev; - char *algs, *ptr; - u32 alg_msk; - int i; - - if (!qm->use_sva) - return 0; - - algs = devm_kzalloc(dev, HPRE_DEV_ALG_MAX_LEN * sizeof(char), GFP_KERNEL); - if (!algs) - return -ENOMEM; - - alg_msk = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_DEV_ALG_BITMAP_CAP, qm->cap_ver); - - for (i = 0; i < ARRAY_SIZE(hpre_dev_algs); i++) - if (alg_msk & hpre_dev_algs[i].alg_msk) - strcat(algs, hpre_dev_algs[i].alg); - - ptr = strrchr(algs, '\n'); - if (ptr) - *ptr = '\0'; - - qm->uacce->algs = algs; - - return 0; -} - static int hpre_diff_regs_show(struct seq_file *s, void *unused) { struct hisi_qm *qm = s->private; @@ -431,9 +426,12 @@ static u32 uacce_mode = UACCE_MODE_NOUACCE; module_param_cb(uacce_mode, &hpre_uacce_mode_ops, &uacce_mode, 0444); MODULE_PARM_DESC(uacce_mode, UACCE_MODE_DESC); +static bool pf_q_num_flag; static int pf_q_num_set(const char *val, const struct kernel_param *kp) { - return q_num_set(val, kp, PCI_DEVICE_ID_HUAWEI_HPRE_PF); + pf_q_num_flag = true; + + return hisi_qm_q_num_set(val, kp, PCI_DEVICE_ID_HUAWEI_HPRE_PF); } static const struct kernel_param_ops hpre_pf_q_num_ops = { @@ -454,19 +452,9 @@ 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)"); -static inline int hpre_cluster_num(struct hisi_qm *qm) -{ - return hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_CLUSTER_NUM_CAP, qm->cap_ver); -} - -static inline int hpre_cluster_core_mask(struct hisi_qm *qm) -{ - return hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_CORE_ENABLE_BITMAP_CAP, qm->cap_ver); -} - struct hisi_qp *hpre_create_qp(u8 type) { - int node = cpu_to_node(smp_processor_id()); + int node = cpu_to_node(raw_smp_processor_id()); struct hisi_qp *qp = NULL; int ret; @@ -484,6 +472,33 @@ struct hisi_qp *hpre_create_qp(u8 type) return NULL; } +static int hpre_wait_sva_ready(struct hisi_qm *qm) +{ + u32 val, try_times = 0; + u8 count = 0; + + /* + * Read the register value every 10-20us. If the value is 0 for three + * consecutive times, the SVA module is ready. + */ + do { + val = readl(qm->io_base + HPRE_SVA_PREFTCH_DFX4); + if (val) + count = 0; + else if (++count == HPRE_READ_SVA_STATUS_TIMES) + break; + + usleep_range(HPRE_WAIT_US_MIN, HPRE_WAIT_US_MAX); + } while (++try_times < HPRE_WAIT_SVA_READY); + + if (try_times == HPRE_WAIT_SVA_READY) { + pci_err(qm->pdev, "failed to wait sva prefetch ready\n"); + return -ETIMEDOUT; + } + + return 0; +} + static void hpre_config_pasid(struct hisi_qm *qm) { u32 val1, val2; @@ -530,13 +545,18 @@ static int hpre_cfg_by_dsm(struct hisi_qm *qm) static int hpre_set_cluster(struct hisi_qm *qm) { - u32 cluster_core_mask = hpre_cluster_core_mask(qm); - u8 clusters_num = hpre_cluster_num(qm); struct device *dev = &qm->pdev->dev; + u32 cluster_core_mask; unsigned long offset; + u32 hpre_core_info; + u8 clusters_num; u32 val = 0; int ret, i; + cluster_core_mask = qm->cap_tables.dev_cap_table[HPRE_CORE_EN].cap_val; + hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val; + clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) & + hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask; for (i = 0; i < clusters_num; i++) { offset = i * HPRE_CLSTR_ADDR_INTRVL; @@ -576,7 +596,7 @@ static void disable_flr_of_bme(struct hisi_qm *qm) writel(PEH_AXUSER_CFG_ENABLE, qm->io_base + QM_PEH_AXUSER_CFG_ENABLE); } -static void hpre_open_sva_prefetch(struct hisi_qm *qm) +static void hpre_close_sva_prefetch(struct hisi_qm *qm) { u32 val; int ret; @@ -584,20 +604,21 @@ static void hpre_open_sva_prefetch(struct hisi_qm *qm) if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps)) return; - /* Enable prefetch */ val = readl_relaxed(qm->io_base + HPRE_PREFETCH_CFG); - val &= HPRE_PREFETCH_ENABLE; + val |= HPRE_PREFETCH_DISABLE; writel(val, qm->io_base + HPRE_PREFETCH_CFG); - ret = readl_relaxed_poll_timeout(qm->io_base + HPRE_PREFETCH_CFG, - val, !(val & HPRE_PREFETCH_DISABLE), + ret = readl_relaxed_poll_timeout(qm->io_base + HPRE_SVA_PREFTCH_DFX, + val, !(val & HPRE_SVA_DISABLE_READY), HPRE_REG_RD_INTVRL_US, HPRE_REG_RD_TMOUT_US); if (ret) - pci_err(qm->pdev, "failed to open sva prefetch\n"); + pci_err(qm->pdev, "failed to close sva prefetch\n"); + + (void)hpre_wait_sva_ready(qm); } -static void hpre_close_sva_prefetch(struct hisi_qm *qm) +static void hpre_open_sva_prefetch(struct hisi_qm *qm) { u32 val; int ret; @@ -605,20 +626,31 @@ static void hpre_close_sva_prefetch(struct hisi_qm *qm) if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps)) return; + /* Enable prefetch */ val = readl_relaxed(qm->io_base + HPRE_PREFETCH_CFG); - val |= HPRE_PREFETCH_DISABLE; + val &= HPRE_PREFETCH_ENABLE; writel(val, qm->io_base + HPRE_PREFETCH_CFG); - ret = readl_relaxed_poll_timeout(qm->io_base + HPRE_SVA_PREFTCH_DFX, - val, !(val & HPRE_SVA_DISABLE_READY), + ret = readl_relaxed_poll_timeout(qm->io_base + HPRE_PREFETCH_CFG, + val, !(val & HPRE_PREFETCH_DISABLE), HPRE_REG_RD_INTVRL_US, HPRE_REG_RD_TMOUT_US); + if (ret) { + pci_err(qm->pdev, "failed to open sva prefetch\n"); + hpre_close_sva_prefetch(qm); + return; + } + + ret = hpre_wait_sva_ready(qm); if (ret) - pci_err(qm->pdev, "failed to close sva prefetch\n"); + hpre_close_sva_prefetch(qm); } static void hpre_enable_clock_gate(struct hisi_qm *qm) { + unsigned long offset; + u8 clusters_num, i; + u32 hpre_core_info; u32 val; if (qm->ver < QM_HW_V3) @@ -632,17 +664,26 @@ static void hpre_enable_clock_gate(struct hisi_qm *qm) val |= HPRE_PEH_CFG_AUTO_GATE_EN; writel(val, qm->io_base + HPRE_PEH_CFG_AUTO_GATE); - val = readl(qm->io_base + HPRE_CLUSTER_DYN_CTL); - val |= HPRE_CLUSTER_DYN_CTL_EN; - writel(val, qm->io_base + HPRE_CLUSTER_DYN_CTL); - - val = readl_relaxed(qm->io_base + HPRE_CORE_SHB_CFG); - val |= HPRE_CORE_GATE_EN; - writel(val, qm->io_base + HPRE_CORE_SHB_CFG); + hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val; + clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) & + hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask; + for (i = 0; i < clusters_num; i++) { + offset = (unsigned long)i * HPRE_CLSTR_ADDR_INTRVL; + val = readl(qm->io_base + offset + HPRE_CLUSTER_DYN_CTL); + val |= HPRE_CLUSTER_DYN_CTL_EN; + writel(val, qm->io_base + offset + HPRE_CLUSTER_DYN_CTL); + + val = readl(qm->io_base + offset + HPRE_CORE_SHB_CFG); + val |= HPRE_CORE_GATE_EN; + writel(val, qm->io_base + offset + HPRE_CORE_SHB_CFG); + } } static void hpre_disable_clock_gate(struct hisi_qm *qm) { + unsigned long offset; + u8 clusters_num, i; + u32 hpre_core_info; u32 val; if (qm->ver < QM_HW_V3) @@ -656,13 +697,19 @@ static void hpre_disable_clock_gate(struct hisi_qm *qm) val &= ~HPRE_PEH_CFG_AUTO_GATE_EN; writel(val, qm->io_base + HPRE_PEH_CFG_AUTO_GATE); - val = readl(qm->io_base + HPRE_CLUSTER_DYN_CTL); - val &= ~HPRE_CLUSTER_DYN_CTL_EN; - writel(val, qm->io_base + HPRE_CLUSTER_DYN_CTL); - - val = readl_relaxed(qm->io_base + HPRE_CORE_SHB_CFG); - val &= ~HPRE_CORE_GATE_EN; - writel(val, qm->io_base + HPRE_CORE_SHB_CFG); + hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val; + clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) & + hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask; + for (i = 0; i < clusters_num; i++) { + offset = (unsigned long)i * HPRE_CLSTR_ADDR_INTRVL; + val = readl(qm->io_base + offset + HPRE_CLUSTER_DYN_CTL); + val &= ~HPRE_CLUSTER_DYN_CTL_EN; + writel(val, qm->io_base + offset + HPRE_CLUSTER_DYN_CTL); + + val = readl(qm->io_base + offset + HPRE_CORE_SHB_CFG); + val &= ~HPRE_CORE_GATE_EN; + writel(val, qm->io_base + offset + HPRE_CORE_SHB_CFG); + } } static int hpre_set_user_domain_and_cache(struct hisi_qm *qm) @@ -678,11 +725,6 @@ static int hpre_set_user_domain_and_cache(struct hisi_qm *qm) writel(HPRE_QM_USR_CFG_MASK, qm->io_base + QM_AWUSER_M_CFG_ENABLE); writel_relaxed(HPRE_QM_AXI_CFG_MASK, qm->io_base + QM_AXI_M_CFG); - /* HPRE need more time, we close this interrupt */ - val = readl_relaxed(qm->io_base + HPRE_QM_ABNML_INT_MASK); - val |= BIT(HPRE_TIMEOUT_ABNML_BIT); - writel_relaxed(val, qm->io_base + HPRE_QM_ABNML_INT_MASK); - if (qm->ver >= QM_HW_V3) writel(HPRE_RSA_ENB | HPRE_ECC_ENB, qm->io_base + HPRE_TYPES_ENB); @@ -691,9 +733,7 @@ static int hpre_set_user_domain_and_cache(struct hisi_qm *qm) writel(HPRE_QM_VFG_AX_MASK, qm->io_base + HPRE_VFG_AXCACHE); writel(0x0, qm->io_base + HPRE_BD_ENDIAN); - writel(0x0, qm->io_base + HPRE_INT_MASK); writel(0x0, qm->io_base + HPRE_POISON_BYPASS); - writel(0x0, qm->io_base + HPRE_COMM_CNT_CLR_CE); writel(0x0, qm->io_base + HPRE_ECC_BYPASS); writel(HPRE_BD_USR_MASK, qm->io_base + HPRE_BD_ARUSR_CFG); @@ -723,6 +763,7 @@ static int hpre_set_user_domain_and_cache(struct hisi_qm *qm) /* Config data buffer pasid needed by Kunpeng 920 */ hpre_config_pasid(qm); + hpre_open_sva_prefetch(qm); hpre_enable_clock_gate(qm); @@ -731,11 +772,15 @@ static int hpre_set_user_domain_and_cache(struct hisi_qm *qm) static void hpre_cnt_regs_clear(struct hisi_qm *qm) { - u8 clusters_num = hpre_cluster_num(qm); unsigned long offset; + u32 hpre_core_info; + u8 clusters_num; int i; /* clear clusterX/cluster_ctrl */ + hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val; + clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) & + hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask; for (i = 0; i < clusters_num; i++) { offset = HPRE_CLSTR_BASE + i * HPRE_CLSTR_ADDR_INTRVL; writel(0x0, qm->io_base + offset + HPRE_CLUSTER_INQURY); @@ -754,8 +799,7 @@ static void hpre_master_ooo_ctrl(struct hisi_qm *qm, bool enable) val1 = readl(qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB); if (enable) { val1 |= HPRE_AM_OOO_SHUTDOWN_ENABLE; - val2 = hisi_qm_get_hw_info(qm, hpre_basic_info, - HPRE_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver); + val2 = qm->err_info.dev_err.shutdown_mask; } else { val1 &= ~HPRE_AM_OOO_SHUTDOWN_ENABLE; val2 = 0x0; @@ -769,37 +813,33 @@ static void hpre_master_ooo_ctrl(struct hisi_qm *qm, bool enable) static void hpre_hw_error_disable(struct hisi_qm *qm) { - u32 ce, nfe; - - ce = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_CE_MASK_CAP, qm->cap_ver); - nfe = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_NFE_MASK_CAP, qm->cap_ver); + struct hisi_qm_err_mask *dev_err = &qm->err_info.dev_err; + u32 err_mask = dev_err->ce | dev_err->nfe | dev_err->fe; /* disable hpre hw error interrupts */ - writel(ce | nfe | HPRE_HAC_RAS_FE_ENABLE, qm->io_base + HPRE_INT_MASK); + writel(err_mask, qm->io_base + HPRE_INT_MASK); /* disable HPRE block master OOO when nfe occurs on Kunpeng930 */ hpre_master_ooo_ctrl(qm, false); } static void hpre_hw_error_enable(struct hisi_qm *qm) { - u32 ce, nfe; - - ce = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_CE_MASK_CAP, qm->cap_ver); - nfe = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_NFE_MASK_CAP, qm->cap_ver); + struct hisi_qm_err_mask *dev_err = &qm->err_info.dev_err; + u32 err_mask = dev_err->ce | dev_err->nfe | dev_err->fe; /* clear HPRE hw error source if having */ - writel(ce | nfe | HPRE_HAC_RAS_FE_ENABLE, qm->io_base + HPRE_HAC_SOURCE_INT); + writel(err_mask, qm->io_base + HPRE_HAC_SOURCE_INT); /* configure error type */ - writel(ce, qm->io_base + HPRE_RAS_CE_ENB); - writel(nfe, qm->io_base + HPRE_RAS_NFE_ENB); - writel(HPRE_HAC_RAS_FE_ENABLE, qm->io_base + HPRE_RAS_FE_ENB); + writel(dev_err->ce, qm->io_base + HPRE_RAS_CE_ENB); + writel(dev_err->nfe, qm->io_base + HPRE_RAS_NFE_ENB); + writel(dev_err->fe, qm->io_base + HPRE_RAS_FE_ENB); /* enable HPRE block master OOO when nfe occurs on Kunpeng930 */ hpre_master_ooo_ctrl(qm, true); /* enable hpre hw error interrupts */ - writel(HPRE_CORE_INT_ENABLE, qm->io_base + HPRE_INT_MASK); + writel(~err_mask, qm->io_base + HPRE_INT_MASK); } static inline struct hisi_qm *hpre_file_to_qm(struct hpre_debugfs_file *file) @@ -1022,16 +1062,20 @@ static int hpre_pf_comm_regs_debugfs_init(struct hisi_qm *qm) static int hpre_cluster_debugfs_init(struct hisi_qm *qm) { - u8 clusters_num = hpre_cluster_num(qm); struct device *dev = &qm->pdev->dev; char buf[HPRE_DBGFS_VAL_MAX_LEN]; struct debugfs_regset32 *regset; struct dentry *tmp_d; + u32 hpre_core_info; + u8 clusters_num; int i, ret; + hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val; + clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) & + hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask; for (i = 0; i < clusters_num; i++) { ret = snprintf(buf, HPRE_DBGFS_VAL_MAX_LEN, "cluster%d", i); - if (ret < 0) + if (ret >= HPRE_DBGFS_VAL_MAX_LEN) return -EINVAL; tmp_d = debugfs_create_dir(buf, qm->debug.debug_root); @@ -1071,6 +1115,26 @@ static int hpre_ctrl_debug_init(struct hisi_qm *qm) return hpre_cluster_debugfs_init(qm); } +static int hpre_cap_regs_show(struct seq_file *s, void *unused) +{ + struct hisi_qm *qm = s->private; + u32 i, size; + + size = qm->cap_tables.qm_cap_size; + for (i = 0; i < size; i++) + seq_printf(s, "%s= 0x%08x\n", qm->cap_tables.qm_cap_table[i].name, + qm->cap_tables.qm_cap_table[i].cap_val); + + size = qm->cap_tables.dev_cap_size; + for (i = 0; i < size; i++) + seq_printf(s, "%s= 0x%08x\n", qm->cap_tables.dev_cap_table[i].name, + qm->cap_tables.dev_cap_table[i].cap_val); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(hpre_cap_regs); + static void hpre_dfx_debug_init(struct hisi_qm *qm) { struct dfx_diff_registers *hpre_regs = qm->debug.acc_diff_regs; @@ -1089,6 +1153,9 @@ static void hpre_dfx_debug_init(struct hisi_qm *qm) if (qm->fun_type == QM_HW_PF && hpre_regs) debugfs_create_file("diff_regs", 0444, parent, qm, &hpre_diff_regs_fops); + + debugfs_create_file("cap_regs", CAP_FILE_PERMISSION, + qm->debug.debug_root, qm, &hpre_cap_regs_fops); } static int hpre_debugfs_init(struct hisi_qm *qm) @@ -1096,45 +1163,80 @@ static int hpre_debugfs_init(struct hisi_qm *qm) struct device *dev = &qm->pdev->dev; int ret; - qm->debug.debug_root = debugfs_create_dir(dev_name(dev), - hpre_debugfs_root); - - qm->debug.sqe_mask_offset = HPRE_SQE_MASK_OFFSET; - qm->debug.sqe_mask_len = HPRE_SQE_MASK_LEN; ret = hisi_qm_regs_debugfs_init(qm, hpre_diff_regs, ARRAY_SIZE(hpre_diff_regs)); if (ret) { dev_warn(dev, "Failed to init HPRE diff regs!\n"); - goto debugfs_remove; + return ret; } + qm->debug.debug_root = debugfs_create_dir(dev_name(dev), + hpre_debugfs_root); + qm->debug.sqe_mask_offset = HPRE_SQE_MASK_OFFSET; + qm->debug.sqe_mask_len = HPRE_SQE_MASK_LEN; + hisi_qm_debug_init(qm); if (qm->pdev->device == PCI_DEVICE_ID_HUAWEI_HPRE_PF) { ret = hpre_ctrl_debug_init(qm); if (ret) - goto failed_to_create; + goto debugfs_remove; } hpre_dfx_debug_init(qm); return 0; -failed_to_create: - hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hpre_diff_regs)); debugfs_remove: debugfs_remove_recursive(qm->debug.debug_root); + hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hpre_diff_regs)); return ret; } static void hpre_debugfs_exit(struct hisi_qm *qm) { + debugfs_remove_recursive(qm->debug.debug_root); + hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hpre_diff_regs)); +} - debugfs_remove_recursive(qm->debug.debug_root); +static int hpre_pre_store_cap_reg(struct hisi_qm *qm) +{ + struct hisi_qm_cap_record *hpre_cap; + struct device *dev = &qm->pdev->dev; + u32 hpre_core_info; + u8 clusters_num; + size_t i, size; + + size = ARRAY_SIZE(hpre_cap_query_info); + hpre_cap = devm_kcalloc(dev, size, sizeof(*hpre_cap), GFP_KERNEL); + if (!hpre_cap) + return -ENOMEM; + + for (i = 0; i < size; i++) { + hpre_cap[i].type = hpre_cap_query_info[i].type; + hpre_cap[i].name = hpre_cap_query_info[i].name; + hpre_cap[i].cap_val = hisi_qm_get_cap_value(qm, hpre_cap_query_info, + i, qm->cap_ver); + } + + hpre_core_info = hpre_cap[HPRE_CORE_INFO].cap_val; + clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) & + hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask; + if (clusters_num > HPRE_CLUSTERS_NUM_MAX) { + dev_err(dev, "Device cluster num %u is out of range for driver supports %d!\n", + clusters_num, HPRE_CLUSTERS_NUM_MAX); + return -EINVAL; + } + + qm->cap_tables.dev_cap_table = hpre_cap; + qm->cap_tables.dev_cap_size = size; + + return 0; } static int hpre_qm_init(struct hisi_qm *qm, struct pci_dev *pdev) { + u64 alg_msk; int ret; if (pdev->revision == QM_HW_V1) { @@ -1144,7 +1246,6 @@ static int hpre_qm_init(struct hisi_qm *qm, struct pci_dev *pdev) qm->mode = uacce_mode; qm->pdev = pdev; - qm->ver = pdev->revision; qm->sqe_size = HPRE_SQE_SIZE; qm->dev_name = hpre_name; @@ -1155,6 +1256,9 @@ static int hpre_qm_init(struct hisi_qm *qm, struct pci_dev *pdev) qm->qp_num = pf_q_num; qm->debug.curr_qm_qp_num = pf_q_num; qm->qm_list = &hpre_devices; + qm->err_ini = &hpre_err_ini; + if (pf_q_num_flag) + set_bit(QM_MODULE_PARAM, &qm->misc_ctl); } ret = hisi_qm_init(qm); @@ -1163,7 +1267,16 @@ static int hpre_qm_init(struct hisi_qm *qm, struct pci_dev *pdev) return ret; } - ret = hpre_set_qm_algs(qm); + /* Fetch and save the value of capability registers */ + ret = hpre_pre_store_cap_reg(qm); + if (ret) { + pci_err(pdev, "Failed to pre-store capability registers!\n"); + hisi_qm_uninit(qm); + return ret; + } + + alg_msk = qm->cap_tables.dev_cap_table[HPRE_ALG_BITMAP].cap_val; + ret = hisi_qm_set_algs(qm, alg_msk, hpre_dev_algs, ARRAY_SIZE(hpre_dev_algs)); if (ret) { pci_err(pdev, "Failed to set hpre algs!\n"); hisi_qm_uninit(qm); @@ -1176,11 +1289,15 @@ static int hpre_show_last_regs_init(struct hisi_qm *qm) { int cluster_dfx_regs_num = ARRAY_SIZE(hpre_cluster_dfx_regs); int com_dfx_regs_num = ARRAY_SIZE(hpre_com_dfx_regs); - u8 clusters_num = hpre_cluster_num(qm); struct qm_debug *debug = &qm->debug; void __iomem *io_base; + u32 hpre_core_info; + u8 clusters_num; int i, j, idx; + hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val; + clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) & + hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask; debug->last_words = kcalloc(cluster_dfx_regs_num * clusters_num + com_dfx_regs_num, sizeof(unsigned int), GFP_KERNEL); if (!debug->last_words) @@ -1217,10 +1334,11 @@ static void hpre_show_last_dfx_regs(struct hisi_qm *qm) { int cluster_dfx_regs_num = ARRAY_SIZE(hpre_cluster_dfx_regs); int com_dfx_regs_num = ARRAY_SIZE(hpre_com_dfx_regs); - u8 clusters_num = hpre_cluster_num(qm); struct qm_debug *debug = &qm->debug; struct pci_dev *pdev = qm->pdev; void __iomem *io_base; + u32 hpre_core_info; + u8 clusters_num; int i, j, idx; u32 val; @@ -1235,6 +1353,9 @@ static void hpre_show_last_dfx_regs(struct hisi_qm *qm) hpre_com_dfx_regs[i].name, debug->last_words[i], val); } + hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val; + clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) & + hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask; for (i = 0; i < clusters_num; i++) { io_base = qm->io_base + hpre_cluster_offsets[i]; for (j = 0; j < cluster_dfx_regs_num; j++) { @@ -1268,11 +1389,23 @@ static u32 hpre_get_hw_err_status(struct hisi_qm *qm) static void hpre_clear_hw_err_status(struct hisi_qm *qm, u32 err_sts) { - u32 nfe; - writel(err_sts, qm->io_base + HPRE_HAC_SOURCE_INT); - nfe = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_NFE_MASK_CAP, qm->cap_ver); - writel(nfe, qm->io_base + HPRE_RAS_NFE_ENB); +} + +static void hpre_disable_error_report(struct hisi_qm *qm, u32 err_type) +{ + u32 nfe_mask = qm->err_info.dev_err.nfe; + + writel(nfe_mask & (~err_type), qm->io_base + HPRE_RAS_NFE_ENB); +} + +static void hpre_enable_error_report(struct hisi_qm *qm) +{ + u32 nfe_mask = qm->err_info.dev_err.nfe; + u32 ce_mask = qm->err_info.dev_err.ce; + + writel(nfe_mask, qm->io_base + HPRE_RAS_NFE_ENB); + writel(ce_mask, qm->io_base + HPRE_RAS_CE_ENB); } static void hpre_open_axi_master_ooo(struct hisi_qm *qm) @@ -1286,22 +1419,92 @@ static void hpre_open_axi_master_ooo(struct hisi_qm *qm) qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB); } +static enum acc_err_result hpre_get_err_result(struct hisi_qm *qm) +{ + u32 err_status; + + err_status = hpre_get_hw_err_status(qm); + if (err_status) { + if (err_status & qm->err_info.dev_err.ecc_2bits_mask) + qm->err_status.is_dev_ecc_mbit = true; + hpre_log_hw_error(qm, err_status); + + if (err_status & qm->err_info.dev_err.reset_mask) { + /* Disable the same error reporting until device is recovered. */ + hpre_disable_error_report(qm, err_status); + return ACC_ERR_NEED_RESET; + } + hpre_clear_hw_err_status(qm, err_status); + /* Avoid firmware disable error report, re-enable. */ + hpre_enable_error_report(qm); + } + + return ACC_ERR_RECOVERED; +} + +static bool hpre_dev_is_abnormal(struct hisi_qm *qm) +{ + u32 err_status; + + err_status = hpre_get_hw_err_status(qm); + if (err_status & qm->err_info.dev_err.shutdown_mask) + return true; + + return false; +} + +static void hpre_disable_axi_error(struct hisi_qm *qm) +{ + struct hisi_qm_err_mask *dev_err = &qm->err_info.dev_err; + u32 err_mask = dev_err->ce | dev_err->nfe | dev_err->fe; + u32 val; + + val = ~(err_mask & (~HPRE_AXI_ERROR_MASK)); + writel(val, qm->io_base + HPRE_INT_MASK); + + if (qm->ver > QM_HW_V2) + writel(dev_err->shutdown_mask & (~HPRE_AXI_ERROR_MASK), + qm->io_base + HPRE_OOO_SHUTDOWN_SEL); +} + +static void hpre_enable_axi_error(struct hisi_qm *qm) +{ + struct hisi_qm_err_mask *dev_err = &qm->err_info.dev_err; + u32 err_mask = dev_err->ce | dev_err->nfe | dev_err->fe; + + /* clear axi error source */ + writel(HPRE_AXI_ERROR_MASK, qm->io_base + HPRE_HAC_SOURCE_INT); + + writel(~err_mask, qm->io_base + HPRE_INT_MASK); + + if (qm->ver > QM_HW_V2) + writel(dev_err->shutdown_mask, qm->io_base + HPRE_OOO_SHUTDOWN_SEL); +} + static void hpre_err_info_init(struct hisi_qm *qm) { struct hisi_qm_err_info *err_info = &qm->err_info; + struct hisi_qm_err_mask *qm_err = &err_info->qm_err; + struct hisi_qm_err_mask *dev_err = &err_info->dev_err; + + qm_err->fe = HPRE_HAC_RAS_FE_ENABLE; + qm_err->ce = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_QM_CE_MASK_CAP, qm->cap_ver); + qm_err->nfe = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_QM_NFE_MASK_CAP, qm->cap_ver); + qm_err->shutdown_mask = hisi_qm_get_hw_info(qm, hpre_basic_info, + HPRE_QM_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver); + qm_err->reset_mask = hisi_qm_get_hw_info(qm, hpre_basic_info, + HPRE_QM_RESET_MASK_CAP, qm->cap_ver); + qm_err->ecc_2bits_mask = QM_ECC_MBIT; + + dev_err->fe = HPRE_HAC_RAS_FE_ENABLE; + dev_err->ce = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_CE_MASK_CAP, qm->cap_ver); + dev_err->nfe = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_NFE_MASK_CAP, qm->cap_ver); + dev_err->shutdown_mask = hisi_qm_get_hw_info(qm, hpre_basic_info, + HPRE_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver); + dev_err->reset_mask = hisi_qm_get_hw_info(qm, hpre_basic_info, + HPRE_RESET_MASK_CAP, qm->cap_ver); + dev_err->ecc_2bits_mask = HPRE_CORE_ECC_2BIT_ERR | HPRE_OOO_ECC_2BIT_ERR; - err_info->fe = HPRE_HAC_RAS_FE_ENABLE; - err_info->ce = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_QM_CE_MASK_CAP, qm->cap_ver); - err_info->nfe = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_QM_NFE_MASK_CAP, qm->cap_ver); - err_info->ecc_2bits_mask = HPRE_CORE_ECC_2BIT_ERR | HPRE_OOO_ECC_2BIT_ERR; - err_info->dev_shutdown_mask = hisi_qm_get_hw_info(qm, hpre_basic_info, - HPRE_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver); - err_info->qm_shutdown_mask = hisi_qm_get_hw_info(qm, hpre_basic_info, - HPRE_QM_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver); - err_info->qm_reset_mask = hisi_qm_get_hw_info(qm, hpre_basic_info, - HPRE_QM_RESET_MASK_CAP, qm->cap_ver); - err_info->dev_reset_mask = hisi_qm_get_hw_info(qm, hpre_basic_info, - HPRE_RESET_MASK_CAP, qm->cap_ver); err_info->msi_wr_port = HPRE_WR_MSI_PORT; err_info->acpi_rst = "HRST"; } @@ -1312,12 +1515,15 @@ static const struct hisi_qm_err_ini hpre_err_ini = { .hw_err_disable = hpre_hw_error_disable, .get_dev_hw_err_status = hpre_get_hw_err_status, .clear_dev_hw_err_status = hpre_clear_hw_err_status, - .log_dev_hw_err = hpre_log_hw_error, .open_axi_master_ooo = hpre_open_axi_master_ooo, .open_sva_prefetch = hpre_open_sva_prefetch, .close_sva_prefetch = hpre_close_sva_prefetch, .show_last_dfx_regs = hpre_show_last_dfx_regs, .err_info_init = hpre_err_info_init, + .get_err_result = hpre_get_err_result, + .dev_is_abnormal = hpre_dev_is_abnormal, + .disable_axi_error = hpre_disable_axi_error, + .enable_axi_error = hpre_enable_axi_error, }; static int hpre_pf_probe_init(struct hpre *hpre) @@ -1329,10 +1535,6 @@ static int hpre_pf_probe_init(struct hpre *hpre) if (ret) return ret; - hpre_open_sva_prefetch(qm); - - qm->err_ini = &hpre_err_ini; - qm->err_ini->err_info_init(qm); hisi_qm_dev_err_init(qm); ret = hpre_show_last_regs_init(qm); if (ret) @@ -1361,6 +1563,18 @@ static int hpre_probe_init(struct hpre *hpre) return 0; } +static void hpre_probe_uninit(struct hisi_qm *qm) +{ + if (qm->fun_type == QM_HW_VF) + return; + + hpre_cnt_regs_clear(qm); + qm->debug.curr_qm_qp_num = 0; + hpre_show_last_regs_uninit(qm); + hpre_close_sva_prefetch(qm); + hisi_qm_dev_err_uninit(qm); +} + static int hpre_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct hisi_qm *qm; @@ -1386,16 +1600,17 @@ static int hpre_probe(struct pci_dev *pdev, const struct pci_device_id *id) ret = hisi_qm_start(qm); if (ret) - goto err_with_err_init; + goto err_with_probe_init; ret = hpre_debugfs_init(qm); if (ret) dev_warn(&pdev->dev, "init debugfs fail!\n"); - ret = hisi_qm_alg_register(qm, &hpre_devices); + hisi_qm_add_list(qm, &hpre_devices); + ret = hisi_qm_alg_register(qm, &hpre_devices, HPRE_CTX_Q_NUM_DEF); if (ret < 0) { pci_err(pdev, "fail to register algs to crypto!\n"); - goto err_with_qm_start; + goto err_qm_del_list; } if (qm->uacce) { @@ -1417,15 +1632,15 @@ static int hpre_probe(struct pci_dev *pdev, const struct pci_device_id *id) return 0; err_with_alg_register: - hisi_qm_alg_unregister(qm, &hpre_devices); + hisi_qm_alg_unregister(qm, &hpre_devices, HPRE_CTX_Q_NUM_DEF); -err_with_qm_start: +err_qm_del_list: + hisi_qm_del_list(qm, &hpre_devices); hpre_debugfs_exit(qm); hisi_qm_stop(qm, QM_NORMAL); -err_with_err_init: - hpre_show_last_regs_uninit(qm); - hisi_qm_dev_err_uninit(qm); +err_with_probe_init: + hpre_probe_uninit(qm); err_with_qm_init: hisi_qm_uninit(qm); @@ -1439,20 +1654,15 @@ static void hpre_remove(struct pci_dev *pdev) hisi_qm_pm_uninit(qm); hisi_qm_wait_task_finish(qm, &hpre_devices); - hisi_qm_alg_unregister(qm, &hpre_devices); + hisi_qm_alg_unregister(qm, &hpre_devices, HPRE_CTX_Q_NUM_DEF); + hisi_qm_del_list(qm, &hpre_devices); if (qm->fun_type == QM_HW_PF && qm->vfs_num) hisi_qm_sriov_disable(pdev, true); hpre_debugfs_exit(qm); hisi_qm_stop(qm, QM_NORMAL); - if (qm->fun_type == QM_HW_PF) { - hpre_cnt_regs_clear(qm); - qm->debug.curr_qm_qp_num = 0; - hpre_show_last_regs_uninit(qm); - hisi_qm_dev_err_uninit(qm); - } - + hpre_probe_uninit(qm); hisi_qm_uninit(qm); } |
