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crypto: hisilicon/zip - add debugfs for Hisilicon ZIP

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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>
This commit is contained in:
Longfang Liu
2020-05-15 17:13:58 +08:00
committed by Herbert Xu
parent 64a6301ebe
commit 6621e6492f
4 changed files with 96 additions and 1 deletions
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54
drivers/crypto/hisilicon/zip/zip_main.c
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@@ -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: