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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/hpre/hpre_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/hpre/hpre_main.c')
| -rw-r--r-- | drivers/crypto/hisilicon/hpre/hpre_main.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c index 6a5de3073de9..b216238c1bb3 100644 --- a/drivers/crypto/hisilicon/hpre/hpre_main.c +++ b/drivers/crypto/hisilicon/hpre/hpre_main.c @@ -763,6 +763,24 @@ static int hpre_debugfs_atomic64_set(void *data, u64 val) DEFINE_DEBUGFS_ATTRIBUTE(hpre_atomic64_ops, hpre_debugfs_atomic64_get, hpre_debugfs_atomic64_set, "%llu\n"); +static int hpre_com_regs_show(struct seq_file *s, void *unused) +{ + hisi_qm_regs_dump(s, s->private); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(hpre_com_regs); + +static int hpre_cluster_regs_show(struct seq_file *s, void *unused) +{ + hisi_qm_regs_dump(s, s->private); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(hpre_cluster_regs); + static int hpre_create_debugfs_file(struct hisi_qm *qm, struct dentry *dir, enum hpre_ctrl_dbgfs_file type, int indx) { @@ -801,7 +819,9 @@ static int hpre_pf_comm_regs_debugfs_init(struct hisi_qm *qm) regset->nregs = ARRAY_SIZE(hpre_com_dfx_regs); regset->base = qm->io_base; - debugfs_create_regset32("regs", 0444, qm->debug.debug_root, regset); + debugfs_create_file("regs", 0444, qm->debug.debug_root, + regset, &hpre_com_regs_fops); + return 0; } @@ -828,7 +848,8 @@ static int hpre_cluster_debugfs_init(struct hisi_qm *qm) regset->nregs = ARRAY_SIZE(hpre_cluster_dfx_regs); regset->base = qm->io_base + hpre_cluster_offsets[i]; - debugfs_create_regset32("regs", 0444, tmp_d, regset); + debugfs_create_file("regs", 0444, tmp_d, regset, + &hpre_cluster_regs_fops); ret = hpre_create_debugfs_file(qm, tmp_d, HPRE_CLUSTER_CTRL, i + HPRE_CLUSTER_CTRL); if (ret) |