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