Commit 9210bdaa authored by Kai Ye's avatar Kai Ye Committed by Herbert Xu
Browse files

crypto: hisilicon/hpre - 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 f1724d39

drivers/crypto/hisilicon/hpre/hpre_main.c

+72 −18
Original line number Diff line number Diff line
@@ -107,6 +107,15 @@ 
#define HPRE_SQE_MASK_OFFSET		8

#define HPRE_SQE_MASK_LEN		24



#define HPRE_DFX_BASE		0x301000

#define HPRE_DFX_COMMON1		0x301400

#define HPRE_DFX_COMMON2		0x301A00

#define HPRE_DFX_CORE		0x302000

#define HPRE_DFX_BASE_LEN		0x55

#define HPRE_DFX_COMMON1_LEN		0x41

#define HPRE_DFX_COMMON2_LEN		0xE

#define HPRE_DFX_CORE_LEN		0x43



static const char hpre_name[] = "hisi_hpre";

static struct dentry *hpre_debugfs_root;

static const struct pci_device_id hpre_dev_ids[] = {
@@ -226,6 +235,53 @@ static const char *hpre_dfx_files[HPRE_DFX_FILE_NUM] = { 
	"invalid_req_cnt"

};



/* define the HPRE's dfx regs region and region length */

static struct dfx_diff_registers hpre_diff_regs[] = {

	{

		.reg_offset = HPRE_DFX_BASE,

		.reg_len = HPRE_DFX_BASE_LEN,

	}, {

		.reg_offset = HPRE_DFX_COMMON1,

		.reg_len = HPRE_DFX_COMMON1_LEN,

	}, {

		.reg_offset = HPRE_DFX_COMMON2,

		.reg_len = HPRE_DFX_COMMON2_LEN,

	}, {

		.reg_offset = HPRE_DFX_CORE,

		.reg_len = HPRE_DFX_CORE_LEN,

	},

};



static int hpre_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(hpre_diff_regs));



	return 0;

}



DEFINE_SHOW_ATTRIBUTE(hpre_diff_regs);



static int hpre_com_regs_show(struct seq_file *s, void *unused)

{

	hisi_qm_regs_dump(s, s->private);



	return 0;

}



DEFINE_SHOW_ATTRIBUTE(hpre_com_regs);



static int hpre_cluster_regs_show(struct seq_file *s, void *unused)

{

	hisi_qm_regs_dump(s, s->private);



	return 0;

}



DEFINE_SHOW_ATTRIBUTE(hpre_cluster_regs);



static const struct kernel_param_ops hpre_uacce_mode_ops = {

	.set = uacce_mode_set,

	.get = param_get_int,
@@ -779,24 +835,6 @@ static int hpre_debugfs_atomic64_set(void *data, u64 val) 
DEFINE_DEBUGFS_ATTRIBUTE(hpre_atomic64_ops, hpre_debugfs_atomic64_get,

			 hpre_debugfs_atomic64_set, "%llu\n");



static int hpre_com_regs_show(struct seq_file *s, void *unused)

{

	hisi_qm_regs_dump(s, s->private);



	return 0;

}



DEFINE_SHOW_ATTRIBUTE(hpre_com_regs);



static int hpre_cluster_regs_show(struct seq_file *s, void *unused)

{

	hisi_qm_regs_dump(s, s->private);



	return 0;

}



DEFINE_SHOW_ATTRIBUTE(hpre_cluster_regs);



static int hpre_create_debugfs_file(struct hisi_qm *qm, struct dentry *dir,

				    enum hpre_ctrl_dbgfs_file type, int indx)

{
@@ -895,6 +933,7 @@ static int hpre_ctrl_debug_init(struct hisi_qm *qm) 


static void hpre_dfx_debug_init(struct hisi_qm *qm)

{

	struct dfx_diff_registers *hpre_regs = qm->debug.acc_diff_regs;

	struct hpre *hpre = container_of(qm, struct hpre, qm);

	struct hpre_dfx *dfx = hpre->debug.dfx;

	struct dentry *parent;
@@ -906,6 +945,10 @@ static void hpre_dfx_debug_init(struct hisi_qm *qm) 
		debugfs_create_file(hpre_dfx_files[i], 0644, parent, &dfx[i],

				    &hpre_atomic64_ops);

	}



	if (qm->fun_type == QM_HW_PF && hpre_regs)

		debugfs_create_file("diff_regs", 0444, parent,

				      qm, &hpre_diff_regs_fops);

}



static int hpre_debugfs_init(struct hisi_qm *qm)
@@ -918,6 +961,13 @@ static int hpre_debugfs_init(struct hisi_qm *qm) 


	qm->debug.sqe_mask_offset = HPRE_SQE_MASK_OFFSET;

	qm->debug.sqe_mask_len = HPRE_SQE_MASK_LEN;

	ret = hisi_qm_diff_regs_init(qm, hpre_diff_regs,

				ARRAY_SIZE(hpre_diff_regs));

	if (ret) {

		dev_warn(dev, "Failed to init HPRE diff regs!\n");

		goto debugfs_remove;

	}



	hisi_qm_debug_init(qm);



	if (qm->pdev->device == PCI_DEVICE_ID_HUAWEI_HPRE_PF) {
@@ -931,12 +981,16 @@ static int hpre_debugfs_init(struct hisi_qm *qm) 
	return 0;



failed_to_create:

	hisi_qm_diff_regs_uninit(qm, ARRAY_SIZE(hpre_diff_regs));

debugfs_remove:

	debugfs_remove_recursive(qm->debug.debug_root);

	return ret;

}



static void hpre_debugfs_exit(struct hisi_qm *qm)

{

	hisi_qm_diff_regs_uninit(qm, ARRAY_SIZE(hpre_diff_regs));



	debugfs_remove_recursive(qm->debug.debug_root);

}