// SPDX-License-Identifier: GPL-2.0/* Copyright (C) 2012-2019 ARM Limited or its affiliates. */ #include <linux/kernel.h>#include <linux/debugfs.h>#include <linux/stringify.h>#include "cc_driver.h"#include "cc_crypto_ctx.h"#include "cc_debugfs.h" #define CC_DEBUG_REG(_X) {	\	.name = __stringify(_X),\	.offset = CC_REG(_X)	\	} /* * This is a global var for the dentry of the * debugfs ccree/ dir. It is not tied down to * a specific instance of ccree, hence it is * global. */static struct dentry *cc_debugfs_dir; static struct debugfs_reg32 ver_sig_regs[] = {	{ .name = "SIGNATURE" }, /* Must be 0th */	{ .name = "VERSION" }, /* Must be 1st */}; static const struct debugfs_reg32 pid_cid_regs[] = {	CC_DEBUG_REG(PERIPHERAL_ID_0),	CC_DEBUG_REG(PERIPHERAL_ID_1),	CC_DEBUG_REG(PERIPHERAL_ID_2),	CC_DEBUG_REG(PERIPHERAL_ID_3),	CC_DEBUG_REG(PERIPHERAL_ID_4),	CC_DEBUG_REG(COMPONENT_ID_0),	CC_DEBUG_REG(COMPONENT_ID_1),	CC_DEBUG_REG(COMPONENT_ID_2),	CC_DEBUG_REG(COMPONENT_ID_3),}; static const struct debugfs_reg32 debug_regs[] = {	CC_DEBUG_REG(HOST_IRR),	CC_DEBUG_REG(HOST_POWER_DOWN_EN),	CC_DEBUG_REG(AXIM_MON_ERR),	CC_DEBUG_REG(DSCRPTR_QUEUE_CONTENT),	CC_DEBUG_REG(HOST_IMR),	CC_DEBUG_REG(AXIM_CFG),	CC_DEBUG_REG(AXIM_CACHE_PARAMS),	CC_DEBUG_REG(GPR_HOST),	CC_DEBUG_REG(AXIM_MON_COMP),}; void __init cc_debugfs_global_init(void){	cc_debugfs_dir = debugfs_create_dir("ccree", NULL);} void cc_debugfs_global_fini(void){	debugfs_remove(cc_debugfs_dir);} int cc_debugfs_init(struct cc_drvdata *drvdata){	struct device *dev = drvdata_to_dev(drvdata);	struct debugfs_regset32 *regset, *verset; 	regset = devm_kzalloc(dev, sizeof(*regset), GFP_KERNEL);	if (!regset)		return -ENOMEM; 	regset->regs = debug_regs;	regset->nregs = ARRAY_SIZE(debug_regs);	regset->base = drvdata->cc_base;	regset->dev = dev; 	drvdata->dir = debugfs_create_dir(drvdata->plat_dev->name,					  cc_debugfs_dir); 	debugfs_create_regset32("regs", 0400, drvdata->dir, regset);	debugfs_create_bool("coherent", 0400, drvdata->dir, &drvdata->coherent); 	verset = devm_kzalloc(dev, sizeof(*verset), GFP_KERNEL);	/* Failing here is not important enough to fail the module load */	if (!verset)		return 0; 	if (drvdata->hw_rev <= CC_HW_REV_712) {		ver_sig_regs[0].offset = drvdata->sig_offset;		ver_sig_regs[1].offset = drvdata->ver_offset;		verset->regs = ver_sig_regs;		verset->nregs = ARRAY_SIZE(ver_sig_regs);	} else {		verset->regs = pid_cid_regs;		verset->nregs = ARRAY_SIZE(pid_cid_regs);	}	verset->base = drvdata->cc_base;	verset->dev = dev; 	debugfs_create_regset32("version", 0400, drvdata->dir, verset);	return 0;} void cc_debugfs_fini(struct cc_drvdata *drvdata){	debugfs_remove_recursive(drvdata->dir);}