Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /* Copyright 2019 NXP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include <linux/debugfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include "compat.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include "debugfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include "regs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include "intern.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) static int caam_debugfs_u64_get(void *data, u64 *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	*val = caam64_to_cpu(*(u64 *)data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	return 0;
^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) static int caam_debugfs_u32_get(void *data, u64 *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	*val = caam32_to_cpu(*(u32 *)data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u32_ro, caam_debugfs_u32_get, NULL, "%llu\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u64_ro, caam_debugfs_u64_get, NULL, "%llu\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #ifdef CONFIG_CAAM_QI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)  * This is a counter for the number of times the congestion group (where all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  * the request and response queueus are) reached congestion. Incremented
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  * each time the congestion callback is called with congested == true.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static u64 times_congested;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) void caam_debugfs_qi_congested(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	times_congested++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) void caam_debugfs_qi_init(struct caam_drv_private *ctrlpriv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	debugfs_create_file("qi_congested", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 			    &times_congested, &caam_fops_u64_ro);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) void caam_debugfs_init(struct caam_drv_private *ctrlpriv, struct dentry *root)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	struct caam_perfmon *perfmon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	 * FIXME: needs better naming distinction, as some amalgamation of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	 * "caam" and nprop->full_name. The OF name isn't distinctive,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	 * but does separate instances
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	perfmon = (struct caam_perfmon __force *)&ctrlpriv->ctrl->perfmon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	ctrlpriv->ctl = debugfs_create_dir("ctl", root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	debugfs_create_file("rq_dequeued", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 			    &perfmon->req_dequeued, &caam_fops_u64_ro);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	debugfs_create_file("ob_rq_encrypted", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 			    &perfmon->ob_enc_req, &caam_fops_u64_ro);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	debugfs_create_file("ib_rq_decrypted", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 			    &perfmon->ib_dec_req, &caam_fops_u64_ro);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 	debugfs_create_file("ob_bytes_encrypted", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 			    &perfmon->ob_enc_bytes, &caam_fops_u64_ro);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 	debugfs_create_file("ob_bytes_protected", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 			    &perfmon->ob_prot_bytes, &caam_fops_u64_ro);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 	debugfs_create_file("ib_bytes_decrypted", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 			    &perfmon->ib_dec_bytes, &caam_fops_u64_ro);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 	debugfs_create_file("ib_bytes_validated", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 			    &perfmon->ib_valid_bytes, &caam_fops_u64_ro);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 	/* Controller level - global status values */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 	debugfs_create_file("fault_addr", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 			    &perfmon->faultaddr, &caam_fops_u32_ro);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 	debugfs_create_file("fault_detail", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 			    &perfmon->faultdetail, &caam_fops_u32_ro);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 	debugfs_create_file("fault_status", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) 			    &perfmon->status, &caam_fops_u32_ro);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) 	/* Internal covering keys (useful in non-secure mode only) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 	ctrlpriv->ctl_kek_wrap.data = (__force void *)&ctrlpriv->ctrl->kek[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 	ctrlpriv->ctl_kek_wrap.size = KEK_KEY_SIZE * sizeof(u32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) 	debugfs_create_blob("kek", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) 			    &ctrlpriv->ctl_kek_wrap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) 	ctrlpriv->ctl_tkek_wrap.data = (__force void *)&ctrlpriv->ctrl->tkek[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) 	ctrlpriv->ctl_tkek_wrap.size = KEK_KEY_SIZE * sizeof(u32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) 	debugfs_create_blob("tkek", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) 			    &ctrlpriv->ctl_tkek_wrap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) 	ctrlpriv->ctl_tdsk_wrap.data = (__force void *)&ctrlpriv->ctrl->tdsk[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) 	ctrlpriv->ctl_tdsk_wrap.size = KEK_KEY_SIZE * sizeof(u32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) 	debugfs_create_blob("tdsk", 0444, ctrlpriv->ctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) 			    &ctrlpriv->ctl_tdsk_wrap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }