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crypto: hisilicon/sec - support register checking

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The value of the register is changed after the task running. A debugfs
file node is added to help users to check the change of register values.

Signed-off-by: Longfang Liu <liulongfang@huawei.com>
Signed-off-by: Kai Ye <yekai13@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Kai Ye
2022-04-09 16:03:20 +08:00
committed by Herbert Xu
parent 9210bdaa0d
commit 16175030bb
1 changed files with 53 additions and 0 deletions
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53
drivers/crypto/hisilicon/sec2/sec_main.c
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@@ -110,6 +110,15 @@
#define SEC_SQE_MASK_LEN 48
#define SEC_SHAPER_TYPE_RATE 400
#define SEC_DFX_BASE 0x301000
#define SEC_DFX_CORE 0x302100
#define SEC_DFX_COMMON1 0x301600
#define SEC_DFX_COMMON2 0x301C00
#define SEC_DFX_BASE_LEN 0x9D
#define SEC_DFX_CORE_LEN 0x32B
#define SEC_DFX_COMMON1_LEN 0x45
#define SEC_DFX_COMMON2_LEN 0xBA
struct sec_hw_error {
u32 int_msk;
const char *msg;
@@ -226,6 +235,34 @@ static const struct debugfs_reg32 sec_dfx_regs[] = {
{"SEC_BD_SAA8 ", 0x301C40},
};
/* define the SEC's dfx regs region and region length */
static struct dfx_diff_registers sec_diff_regs[] = {
{
.reg_offset = SEC_DFX_BASE,
.reg_len = SEC_DFX_BASE_LEN,
}, {
.reg_offset = SEC_DFX_COMMON1,
.reg_len = SEC_DFX_COMMON1_LEN,
}, {
.reg_offset = SEC_DFX_COMMON2,
.reg_len = SEC_DFX_COMMON2_LEN,
}, {
.reg_offset = SEC_DFX_CORE,
.reg_len = SEC_DFX_CORE_LEN,
},
};
static int sec_diff_regs_show(struct seq_file *s, void *unused)
{
struct hisi_qm *qm = s->private;
hisi_qm_acc_diff_regs_dump(qm, s, qm->debug.acc_diff_regs,
ARRAY_SIZE(sec_diff_regs));
return 0;
}
DEFINE_SHOW_ATTRIBUTE(sec_diff_regs);
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);
@@ -729,6 +766,7 @@ DEFINE_SHOW_ATTRIBUTE(sec_regs);
static int sec_core_debug_init(struct hisi_qm *qm)
{
struct dfx_diff_registers *sec_regs = qm->debug.acc_diff_regs;
struct sec_dev *sec = container_of(qm, struct sec_dev, qm);
struct device *dev = &qm->pdev->dev;
struct sec_dfx *dfx = &sec->debug.dfx;
@@ -749,6 +787,9 @@ static int sec_core_debug_init(struct hisi_qm *qm)
if (qm->pdev->device == PCI_DEVICE_ID_HUAWEI_SEC_PF)
debugfs_create_file("regs", 0444, tmp_d, regset, &sec_regs_fops);
if (qm->fun_type == QM_HW_PF && sec_regs)
debugfs_create_file("diff_regs", 0444, tmp_d,
qm, &sec_diff_regs_fops);
for (i = 0; i < ARRAY_SIZE(sec_dfx_labels); i++) {
atomic64_t *data = (atomic64_t *)((uintptr_t)dfx +
@@ -790,6 +831,14 @@ static int sec_debugfs_init(struct hisi_qm *qm)
sec_debugfs_root);
qm->debug.sqe_mask_offset = SEC_SQE_MASK_OFFSET;
qm->debug.sqe_mask_len = SEC_SQE_MASK_LEN;
ret = hisi_qm_diff_regs_init(qm, sec_diff_regs,
ARRAY_SIZE(sec_diff_regs));
if (ret) {
dev_warn(dev, "Failed to init SEC diff regs!\n");
goto debugfs_remove;
}
hisi_qm_debug_init(qm);
ret = sec_debug_init(qm);
@@ -799,12 +848,16 @@ static int sec_debugfs_init(struct hisi_qm *qm)
return 0;
failed_to_create:
hisi_qm_diff_regs_uninit(qm, ARRAY_SIZE(sec_diff_regs));
debugfs_remove:
debugfs_remove_recursive(sec_debugfs_root);
return ret;
}
static void sec_debugfs_exit(struct hisi_qm *qm)
{
hisi_qm_diff_regs_uninit(qm, ARRAY_SIZE(sec_diff_regs));
debugfs_remove_recursive(qm->debug.debug_root);
}