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author | Zhiqi Song <songzhiqi1@huawei.com> | 2023-12-02 12:17:20 +0300 |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-12-08 06:59:45 +0300 |
commit | cf8b5156bbc8c9376f699e8d35e9464b739e33ff (patch) | |
tree | 5c5611b0187505d5a4f37edd425f8e68363d91ba /drivers/crypto/hisilicon | |
parent | cabe13d0bd2efb8dd50ed2310f57b33e1a69a0d4 (diff) | |
download | linux-cf8b5156bbc8c9376f699e8d35e9464b739e33ff.tar.xz |
crypto: hisilicon/hpre - save capability registers in probe process
Pre-store the valid value of hpre alg support related capability
register in hpre_qm_init(), which will be called by hpre_probe().
It can reduce the number of capability register queries and avoid
obtaining incorrect values in abnormal scenarios, such as reset
failed and the memory space disabled.
Fixes: f214d59a0603 ("crypto: hisilicon/hpre - support hpre capability")
Signed-off-by: Zhiqi Song <songzhiqi1@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/hisilicon')
-rw-r--r-- | drivers/crypto/hisilicon/hpre/hpre_main.c | 82 |
1 files changed, 64 insertions, 18 deletions
diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c index 84c92d85d23d..3255b2a070c7 100644 --- a/drivers/crypto/hisilicon/hpre/hpre_main.c +++ b/drivers/crypto/hisilicon/hpre/hpre_main.c @@ -226,6 +226,20 @@ static const struct hisi_qm_cap_info hpre_basic_info[] = { {HPRE_CORE10_ALG_BITMAP_CAP, 0x3170, 0, GENMASK(31, 0), 0x0, 0x10, 0x10} }; +enum hpre_pre_store_cap_idx { + HPRE_CLUSTER_NUM_CAP_IDX = 0x0, + HPRE_CORE_ENABLE_BITMAP_CAP_IDX, + HPRE_DRV_ALG_BITMAP_CAP_IDX, + HPRE_DEV_ALG_BITMAP_CAP_IDX, +}; + +static const u32 hpre_pre_store_caps[] = { + HPRE_CLUSTER_NUM_CAP, + HPRE_CORE_ENABLE_BITMAP_CAP, + HPRE_DRV_ALG_BITMAP_CAP, + HPRE_DEV_ALG_BITMAP_CAP, +}; + static const struct hpre_hw_error hpre_hw_errors[] = { { .int_msk = BIT(0), @@ -348,7 +362,7 @@ 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_IDX].cap_val; if (alg & cap_val) return true; @@ -424,16 +438,6 @@ 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()); @@ -500,13 +504,15 @@ 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; unsigned long offset; + u32 cluster_core_mask; + u8 clusters_num; u32 val = 0; int ret, i; + cluster_core_mask = qm->cap_tables.dev_cap_table[HPRE_CORE_ENABLE_BITMAP_CAP_IDX].cap_val; + clusters_num = qm->cap_tables.dev_cap_table[HPRE_CLUSTER_NUM_CAP_IDX].cap_val; for (i = 0; i < clusters_num; i++) { offset = i * HPRE_CLSTR_ADDR_INTRVL; @@ -701,11 +707,12 @@ 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; + u8 clusters_num; int i; /* clear clusterX/cluster_ctrl */ + clusters_num = qm->cap_tables.dev_cap_table[HPRE_CLUSTER_NUM_CAP_IDX].cap_val; 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); @@ -992,13 +999,14 @@ 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; + u8 clusters_num; int i, ret; + clusters_num = qm->cap_tables.dev_cap_table[HPRE_CLUSTER_NUM_CAP_IDX].cap_val; for (i = 0; i < clusters_num; i++) { ret = snprintf(buf, HPRE_DBGFS_VAL_MAX_LEN, "cluster%d", i); if (ret >= HPRE_DBGFS_VAL_MAX_LEN) @@ -1103,6 +1111,34 @@ static void hpre_debugfs_exit(struct hisi_qm *qm) 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; + size_t i, size; + + size = ARRAY_SIZE(hpre_pre_store_caps); + hpre_cap = devm_kzalloc(dev, sizeof(*hpre_cap) * size, GFP_KERNEL); + if (!hpre_cap) + return -ENOMEM; + + for (i = 0; i < size; i++) { + hpre_cap[i].type = hpre_pre_store_caps[i]; + hpre_cap[i].cap_val = hisi_qm_get_hw_info(qm, hpre_basic_info, + hpre_pre_store_caps[i], qm->cap_ver); + } + + if (hpre_cap[HPRE_CLUSTER_NUM_CAP_IDX].cap_val > HPRE_CLUSTERS_NUM_MAX) { + dev_err(dev, "Device cluster num %u is out of range for driver supports %d!\n", + hpre_cap[HPRE_CLUSTER_NUM_CAP_IDX].cap_val, HPRE_CLUSTERS_NUM_MAX); + return -EINVAL; + } + + qm->cap_tables.dev_cap_table = hpre_cap; + + return 0; +} + static int hpre_qm_init(struct hisi_qm *qm, struct pci_dev *pdev) { u64 alg_msk; @@ -1136,7 +1172,15 @@ static int hpre_qm_init(struct hisi_qm *qm, struct pci_dev *pdev) return ret; } - alg_msk = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_DEV_ALG_BITMAP_CAP, qm->cap_ver); + /* 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_DEV_ALG_BITMAP_CAP_IDX].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"); @@ -1150,11 +1194,12 @@ 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; + u8 clusters_num; int i, j, idx; + clusters_num = qm->cap_tables.dev_cap_table[HPRE_CLUSTER_NUM_CAP_IDX].cap_val; debug->last_words = kcalloc(cluster_dfx_regs_num * clusters_num + com_dfx_regs_num, sizeof(unsigned int), GFP_KERNEL); if (!debug->last_words) @@ -1191,10 +1236,10 @@ 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; + u8 clusters_num; int i, j, idx; u32 val; @@ -1209,6 +1254,7 @@ static void hpre_show_last_dfx_regs(struct hisi_qm *qm) hpre_com_dfx_regs[i].name, debug->last_words[i], val); } + clusters_num = qm->cap_tables.dev_cap_table[HPRE_CLUSTER_NUM_CAP_IDX].cap_val; 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++) { |