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| author | Weili Qian <qianweili@huawei.com> | 2021-08-13 12:50:05 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2021-08-21 10:44:58 +0300 |
| commit | 1295292d65b729fc8b234fcdf884d79ff5a63ca1 (patch) | |
| tree | 17e7c04bd2ace1f39ef94abb5889b723341ee413 /drivers/crypto/hisilicon/sec2/sec_main.c | |
| parent | 357a753f5ec7ccdec196fa825d906c3acc4bd57c (diff) | |
| download | linux-1295292d65b729fc8b234fcdf884d79ff5a63ca1.tar.xz | |
crypto: hisilicon - using 'debugfs_create_file' instead of 'debugfs_create_regset32'
The accelerator devices support runtime PM, when device is in suspended, an
exception will occur if reading registers. Therefore, this patch uses
'debugfs_create_file' instead of 'debugfs_create_regset32' to create
debugfs file, and then the driver can get the device status before
reading the register.
Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/hisilicon/sec2/sec_main.c')
| -rw-r--r-- | drivers/crypto/hisilicon/sec2/sec_main.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/crypto/hisilicon/sec2/sec_main.c b/drivers/crypto/hisilicon/sec2/sec_main.c index 2250c81d6158..55ef3ae70fdb 100644 --- a/drivers/crypto/hisilicon/sec2/sec_main.c +++ b/drivers/crypto/hisilicon/sec2/sec_main.c @@ -676,6 +676,15 @@ static int sec_debugfs_atomic64_set(void *data, u64 val) DEFINE_DEBUGFS_ATTRIBUTE(sec_atomic64_ops, sec_debugfs_atomic64_get, sec_debugfs_atomic64_set, "%lld\n"); +static int sec_regs_show(struct seq_file *s, void *unused) +{ + hisi_qm_regs_dump(s, s->private); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(sec_regs); + static int sec_core_debug_init(struct hisi_qm *qm) { struct sec_dev *sec = container_of(qm, struct sec_dev, qm); @@ -696,7 +705,7 @@ static int sec_core_debug_init(struct hisi_qm *qm) regset->base = qm->io_base; if (qm->pdev->device == SEC_PF_PCI_DEVICE_ID) - debugfs_create_regset32("regs", 0444, tmp_d, regset); + debugfs_create_file("regs", 0444, tmp_d, regset, &sec_regs_fops); for (i = 0; i < ARRAY_SIZE(sec_dfx_labels); i++) { atomic64_t *data = (atomic64_t *)((uintptr_t)dfx + |