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 22 DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u32_ro, caam_debugfs_u32_get, NULL, "%llu\n"); 23 DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u64_ro, caam_debugfs_u64_get, NULL, "%llu\n"); 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 } 97