108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
|
// 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 __exit 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);
|
||
|
|
}
|