diff options
| author |   Longfang Liu <liulongfang@huawei.com> | 2020-05-15 17:13:58 +0800 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2020-05-23 00:08:22 +1000 |
| commit | 6621e6492fbdf55d25ea7dd09c8a4cd520c0028d (patch) | |
| tree | fcaa6ba407a4ce8bb9b30c957d450f74a1350161 /drivers/crypto/hisilicon/zip/zip_main.c | |
| parent | crypto: hisilicon/hpre - add debugfs for Hisilicon HPRE (diff) | |
| download | wireguard-linux-6621e6492fbdf55d25ea7dd09c8a4cd520c0028d.tar.xz wireguard-linux-6621e6492fbdf55d25ea7dd09c8a4cd520c0028d.zip | |
crypto: hisilicon/zip - add debugfs for Hisilicon ZIP
Hisilicon ZIP engine driver uses debugfs
to provides IO operation debug information
Signed-off-by: Longfang Liu <liulongfang@huawei.com>
Signed-off-by: Shukun Tan <tanshukun1@huawei.com>
Reviewed-by: Zaibo Xu <xuzaibo@huawei.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to '')
| -rw-r--r-- | drivers/crypto/hisilicon/zip/zip_main.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c index 6161b1025b7f..cb3ed6bd3d86 100644 --- a/drivers/crypto/hisilicon/zip/zip_main.c +++ b/drivers/crypto/hisilicon/zip/zip_main.c @@ -99,6 +99,18 @@ struct hisi_zip_hw_error { const char *msg; }; +struct zip_dfx_item { + const char *name; + u32 offset; +}; + +static struct zip_dfx_item zip_dfx_files[] = { + {"send_cnt", offsetof(struct hisi_zip_dfx, send_cnt)}, + {"recv_cnt", offsetof(struct hisi_zip_dfx, recv_cnt)}, + {"send_busy_cnt", offsetof(struct hisi_zip_dfx, send_busy_cnt)}, + {"err_bd_cnt", offsetof(struct hisi_zip_dfx, err_bd_cnt)}, +}; + static const struct hisi_zip_hw_error zip_hw_error[] = { { .int_msk = BIT(0), .msg = "zip_ecc_1bitt_err" }, { .int_msk = BIT(1), .msg = "zip_ecc_2bit_err" }, @@ -469,6 +481,27 @@ static const struct file_operations ctrl_debug_fops = { .write = ctrl_debug_write, }; + +static int zip_debugfs_atomic64_set(void *data, u64 val) +{ + if (val) + return -EINVAL; + + atomic64_set((atomic64_t *)data, 0); + + return 0; +} + +static int zip_debugfs_atomic64_get(void *data, u64 *val) +{ + *val = atomic64_read((atomic64_t *)data); + + return 0; +} + +DEFINE_DEBUGFS_ATTRIBUTE(zip_atomic64_ops, zip_debugfs_atomic64_get, + zip_debugfs_atomic64_set, "%llu\n"); + static int hisi_zip_core_debug_init(struct hisi_zip_ctrl *ctrl) { struct hisi_zip *hisi_zip = ctrl->hisi_zip; @@ -500,6 +533,25 @@ static int hisi_zip_core_debug_init(struct hisi_zip_ctrl *ctrl) return 0; } +static void hisi_zip_dfx_debug_init(struct hisi_qm *qm) +{ + struct hisi_zip *zip = container_of(qm, struct hisi_zip, qm); + struct hisi_zip_dfx *dfx = &zip->dfx; + struct dentry *tmp_dir; + void *data; + int i; + + tmp_dir = debugfs_create_dir("zip_dfx", qm->debug.debug_root); + for (i = 0; i < ARRAY_SIZE(zip_dfx_files); i++) { + data = (atomic64_t *)((uintptr_t)dfx + zip_dfx_files[i].offset); + debugfs_create_file(zip_dfx_files[i].name, + 0644, + tmp_dir, + data, + &zip_atomic64_ops); + } +} + static int hisi_zip_ctrl_debug_init(struct hisi_zip_ctrl *ctrl) { int i; @@ -538,6 +590,8 @@ static int hisi_zip_debugfs_init(struct hisi_zip *hisi_zip) goto failed_to_create; } + hisi_zip_dfx_debug_init(qm); + return 0; failed_to_create: |