diff options
Diffstat (limited to 'drivers/crypto/caam/debugfs.c')
| -rw-r--r-- | drivers/crypto/caam/debugfs.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/drivers/crypto/caam/debugfs.c b/drivers/crypto/caam/debugfs.c new file mode 100644 index 000000000000..8ebf18398166 --- /dev/null +++ b/drivers/crypto/caam/debugfs.c @@ -0,0 +1,96 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* Copyright 2019 NXP */ + +#include <linux/debugfs.h> +#include "compat.h" +#include "debugfs.h" +#include "regs.h" +#include "intern.h" + +static int caam_debugfs_u64_get(void *data, u64 *val) +{ + *val = caam64_to_cpu(*(u64 *)data); + return 0; +} + +static int caam_debugfs_u32_get(void *data, u64 *val) +{ + *val = caam32_to_cpu(*(u32 *)data); + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u32_ro, caam_debugfs_u32_get, NULL, "%llu\n"); +DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u64_ro, caam_debugfs_u64_get, NULL, "%llu\n"); + +#ifdef CONFIG_CAAM_QI +/* + * This is a counter for the number of times the congestion group (where all + * the request and response queueus are) reached congestion. Incremented + * each time the congestion callback is called with congested == true. + */ +static u64 times_congested; + +void caam_debugfs_qi_congested(void) +{ + times_congested++; +} + +void caam_debugfs_qi_init(struct caam_drv_private *ctrlpriv) +{ + debugfs_create_file("qi_congested", 0444, ctrlpriv->ctl, + ×_congested, &caam_fops_u64_ro); +} +#endif + +void caam_debugfs_init(struct caam_drv_private *ctrlpriv, struct dentry *root) +{ + struct caam_perfmon *perfmon; + + /* + * FIXME: needs better naming distinction, as some amalgamation of + * "caam" and nprop->full_name. The OF name isn't distinctive, + * but does separate instances + */ + perfmon = (struct caam_perfmon __force *)&ctrlpriv->ctrl->perfmon; + + ctrlpriv->ctl = debugfs_create_dir("ctl", root); + + debugfs_create_file("rq_dequeued", 0444, ctrlpriv->ctl, + &perfmon->req_dequeued, &caam_fops_u64_ro); + debugfs_create_file("ob_rq_encrypted", 0444, ctrlpriv->ctl, + &perfmon->ob_enc_req, &caam_fops_u64_ro); + debugfs_create_file("ib_rq_decrypted", 0444, ctrlpriv->ctl, + &perfmon->ib_dec_req, &caam_fops_u64_ro); + debugfs_create_file("ob_bytes_encrypted", 0444, ctrlpriv->ctl, + &perfmon->ob_enc_bytes, &caam_fops_u64_ro); + debugfs_create_file("ob_bytes_protected", 0444, ctrlpriv->ctl, + &perfmon->ob_prot_bytes, &caam_fops_u64_ro); + debugfs_create_file("ib_bytes_decrypted", 0444, ctrlpriv->ctl, + &perfmon->ib_dec_bytes, &caam_fops_u64_ro); + debugfs_create_file("ib_bytes_validated", 0444, ctrlpriv->ctl, + &perfmon->ib_valid_bytes, &caam_fops_u64_ro); + + /* Controller level - global status values */ + debugfs_create_file("fault_addr", 0444, ctrlpriv->ctl, + &perfmon->faultaddr, &caam_fops_u32_ro); + debugfs_create_file("fault_detail", 0444, ctrlpriv->ctl, + &perfmon->faultdetail, &caam_fops_u32_ro); + debugfs_create_file("fault_status", 0444, ctrlpriv->ctl, + &perfmon->status, &caam_fops_u32_ro); + + /* Internal covering keys (useful in non-secure mode only) */ + ctrlpriv->ctl_kek_wrap.data = (__force void *)&ctrlpriv->ctrl->kek[0]; + ctrlpriv->ctl_kek_wrap.size = KEK_KEY_SIZE * sizeof(u32); + debugfs_create_blob("kek", 0444, ctrlpriv->ctl, + &ctrlpriv->ctl_kek_wrap); + + ctrlpriv->ctl_tkek_wrap.data = (__force void *)&ctrlpriv->ctrl->tkek[0]; + ctrlpriv->ctl_tkek_wrap.size = KEK_KEY_SIZE * sizeof(u32); + debugfs_create_blob("tkek", 0444, ctrlpriv->ctl, + &ctrlpriv->ctl_tkek_wrap); + + ctrlpriv->ctl_tdsk_wrap.data = (__force void *)&ctrlpriv->ctrl->tdsk[0]; + ctrlpriv->ctl_tdsk_wrap.size = KEK_KEY_SIZE * sizeof(u32); + debugfs_create_blob("tdsk", 0444, ctrlpriv->ctl, + &ctrlpriv->ctl_tdsk_wrap); +} |