^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /* Copyright (C) 2012-2019 ARM Limited or its affiliates. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <linux/debugfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/stringify.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include "cc_driver.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include "cc_crypto_ctx.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include "cc_debugfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define CC_DEBUG_REG(_X) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) .name = __stringify(_X),\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) .offset = CC_REG(_X) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * This is a global var for the dentry of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * debugfs ccree/ dir. It is not tied down to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * a specific instance of ccree, hence it is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * global.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static struct dentry *cc_debugfs_dir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) static struct debugfs_reg32 ver_sig_regs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) { .name = "SIGNATURE" }, /* Must be 0th */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) { .name = "VERSION" }, /* Must be 1st */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static const struct debugfs_reg32 pid_cid_regs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) CC_DEBUG_REG(PERIPHERAL_ID_0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) CC_DEBUG_REG(PERIPHERAL_ID_1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) CC_DEBUG_REG(PERIPHERAL_ID_2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) CC_DEBUG_REG(PERIPHERAL_ID_3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) CC_DEBUG_REG(PERIPHERAL_ID_4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) CC_DEBUG_REG(COMPONENT_ID_0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) CC_DEBUG_REG(COMPONENT_ID_1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) CC_DEBUG_REG(COMPONENT_ID_2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) CC_DEBUG_REG(COMPONENT_ID_3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) static const struct debugfs_reg32 debug_regs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) CC_DEBUG_REG(HOST_IRR),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) CC_DEBUG_REG(HOST_POWER_DOWN_EN),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) CC_DEBUG_REG(AXIM_MON_ERR),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) CC_DEBUG_REG(DSCRPTR_QUEUE_CONTENT),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) CC_DEBUG_REG(HOST_IMR),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) CC_DEBUG_REG(AXIM_CFG),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) CC_DEBUG_REG(AXIM_CACHE_PARAMS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) CC_DEBUG_REG(GPR_HOST),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) CC_DEBUG_REG(AXIM_MON_COMP),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) void __init cc_debugfs_global_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) cc_debugfs_dir = debugfs_create_dir("ccree", NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) void __exit cc_debugfs_global_fini(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) debugfs_remove(cc_debugfs_dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) int cc_debugfs_init(struct cc_drvdata *drvdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct device *dev = drvdata_to_dev(drvdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) struct debugfs_regset32 *regset, *verset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) regset = devm_kzalloc(dev, sizeof(*regset), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) if (!regset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) regset->regs = debug_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) regset->nregs = ARRAY_SIZE(debug_regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) regset->base = drvdata->cc_base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) regset->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) drvdata->dir = debugfs_create_dir(drvdata->plat_dev->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) cc_debugfs_dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) debugfs_create_regset32("regs", 0400, drvdata->dir, regset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) debugfs_create_bool("coherent", 0400, drvdata->dir, &drvdata->coherent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) verset = devm_kzalloc(dev, sizeof(*verset), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /* Failing here is not important enough to fail the module load */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) if (!verset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) if (drvdata->hw_rev <= CC_HW_REV_712) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) ver_sig_regs[0].offset = drvdata->sig_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) ver_sig_regs[1].offset = drvdata->ver_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) verset->regs = ver_sig_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) verset->nregs = ARRAY_SIZE(ver_sig_regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) verset->regs = pid_cid_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) verset->nregs = ARRAY_SIZE(pid_cid_regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) verset->base = drvdata->cc_base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) verset->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) debugfs_create_regset32("version", 0400, drvdata->dir, verset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) void cc_debugfs_fini(struct cc_drvdata *drvdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) debugfs_remove_recursive(drvdata->dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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