Horia Geantă | abd9875 | 2020-08-06 21:09:49 +0300 | [diff] [blame] | 1 | // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) |
| 2 | /* Copyright 2019 NXP */ |
| 3 | |
| 4 | #include <linux/debugfs.h> |
| 5 | #include "compat.h" |
| 6 | #include "debugfs.h" |
| 7 | #include "regs.h" |
| 8 | #include "intern.h" |
| 9 | |
| 10 | static int caam_debugfs_u64_get(void *data, u64 *val) |
| 11 | { |
| 12 | *val = caam64_to_cpu(*(u64 *)data); |
| 13 | return 0; |
| 14 | } |
| 15 | |
| 16 | static int caam_debugfs_u32_get(void *data, u64 *val) |
| 17 | { |
| 18 | *val = caam32_to_cpu(*(u32 *)data); |
| 19 | return 0; |
| 20 | } |
| 21 | |
Jiapeng Chong | 6c2ab5b | 2021-02-02 10:06:15 +0800 | [diff] [blame] | 22 | DEFINE_DEBUGFS_ATTRIBUTE(caam_fops_u32_ro, caam_debugfs_u32_get, NULL, "%llu\n"); |
| 23 | DEFINE_DEBUGFS_ATTRIBUTE(caam_fops_u64_ro, caam_debugfs_u64_get, NULL, "%llu\n"); |
Horia Geantă | abd9875 | 2020-08-06 21:09:49 +0300 | [diff] [blame] | 24 | |
| 25 | #ifdef CONFIG_CAAM_QI |
| 26 | /* |
| 27 | * This is a counter for the number of times the congestion group (where all |
| 28 | * the request and response queueus are) reached congestion. Incremented |
| 29 | * each time the congestion callback is called with congested == true. |
| 30 | */ |
| 31 | static u64 times_congested; |
| 32 | |
| 33 | void caam_debugfs_qi_congested(void) |
| 34 | { |
| 35 | times_congested++; |
| 36 | } |
| 37 | |
| 38 | void caam_debugfs_qi_init(struct caam_drv_private *ctrlpriv) |
| 39 | { |
| 40 | debugfs_create_file("qi_congested", 0444, ctrlpriv->ctl, |
| 41 | ×_congested, &caam_fops_u64_ro); |
| 42 | } |
| 43 | #endif |
| 44 | |
| 45 | void caam_debugfs_init(struct caam_drv_private *ctrlpriv, struct dentry *root) |
| 46 | { |
| 47 | struct caam_perfmon *perfmon; |
| 48 | |
| 49 | /* |
| 50 | * FIXME: needs better naming distinction, as some amalgamation of |
| 51 | * "caam" and nprop->full_name. The OF name isn't distinctive, |
| 52 | * but does separate instances |
| 53 | */ |
| 54 | perfmon = (struct caam_perfmon __force *)&ctrlpriv->ctrl->perfmon; |
| 55 | |
| 56 | ctrlpriv->ctl = debugfs_create_dir("ctl", root); |
| 57 | |
| 58 | debugfs_create_file("rq_dequeued", 0444, ctrlpriv->ctl, |
| 59 | &perfmon->req_dequeued, &caam_fops_u64_ro); |
| 60 | debugfs_create_file("ob_rq_encrypted", 0444, ctrlpriv->ctl, |
| 61 | &perfmon->ob_enc_req, &caam_fops_u64_ro); |
| 62 | debugfs_create_file("ib_rq_decrypted", 0444, ctrlpriv->ctl, |
| 63 | &perfmon->ib_dec_req, &caam_fops_u64_ro); |
| 64 | debugfs_create_file("ob_bytes_encrypted", 0444, ctrlpriv->ctl, |
| 65 | &perfmon->ob_enc_bytes, &caam_fops_u64_ro); |
| 66 | debugfs_create_file("ob_bytes_protected", 0444, ctrlpriv->ctl, |
| 67 | &perfmon->ob_prot_bytes, &caam_fops_u64_ro); |
| 68 | debugfs_create_file("ib_bytes_decrypted", 0444, ctrlpriv->ctl, |
| 69 | &perfmon->ib_dec_bytes, &caam_fops_u64_ro); |
| 70 | debugfs_create_file("ib_bytes_validated", 0444, ctrlpriv->ctl, |
| 71 | &perfmon->ib_valid_bytes, &caam_fops_u64_ro); |
| 72 | |
| 73 | /* Controller level - global status values */ |
| 74 | debugfs_create_file("fault_addr", 0444, ctrlpriv->ctl, |
| 75 | &perfmon->faultaddr, &caam_fops_u32_ro); |
| 76 | debugfs_create_file("fault_detail", 0444, ctrlpriv->ctl, |
| 77 | &perfmon->faultdetail, &caam_fops_u32_ro); |
| 78 | debugfs_create_file("fault_status", 0444, ctrlpriv->ctl, |
| 79 | &perfmon->status, &caam_fops_u32_ro); |
| 80 | |
| 81 | /* Internal covering keys (useful in non-secure mode only) */ |
| 82 | ctrlpriv->ctl_kek_wrap.data = (__force void *)&ctrlpriv->ctrl->kek[0]; |
| 83 | ctrlpriv->ctl_kek_wrap.size = KEK_KEY_SIZE * sizeof(u32); |
| 84 | debugfs_create_blob("kek", 0444, ctrlpriv->ctl, |
| 85 | &ctrlpriv->ctl_kek_wrap); |
| 86 | |
| 87 | ctrlpriv->ctl_tkek_wrap.data = (__force void *)&ctrlpriv->ctrl->tkek[0]; |
| 88 | ctrlpriv->ctl_tkek_wrap.size = KEK_KEY_SIZE * sizeof(u32); |
| 89 | debugfs_create_blob("tkek", 0444, ctrlpriv->ctl, |
| 90 | &ctrlpriv->ctl_tkek_wrap); |
| 91 | |
| 92 | ctrlpriv->ctl_tdsk_wrap.data = (__force void *)&ctrlpriv->ctrl->tdsk[0]; |
| 93 | ctrlpriv->ctl_tdsk_wrap.size = KEK_KEY_SIZE * sizeof(u32); |
| 94 | debugfs_create_blob("tdsk", 0444, ctrlpriv->ctl, |
| 95 | &ctrlpriv->ctl_tdsk_wrap); |
| 96 | } |