Commit 16175030 authored by Kai Ye's avatar Kai Ye Committed by Herbert Xu
Browse files

crypto: hisilicon/sec - support register checking 



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: default avatarLongfang Liu <liulongfang@huawei.com>
Signed-off-by: default avatarKai Ye <yekai13@huawei.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 9210bdaa

drivers/crypto/hisilicon/sec2/sec_main.c

+53 −0
Original line number Diff line number Diff line
@@ -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);

}