diff options
| author | Hao Fang <fanghao11@huawei.com> | 2020-09-25 22:06:14 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-10-02 18:02:13 +1000 |
| commit | 698f95235d242f6922cee73066db8d7a690f3ae1 (patch) | |
| tree | 6f2d9fb4d9982ffed04adbb582e7be353923244b /drivers/crypto | |
| parent | ae6ee6ae2b4f4534664561161ef8087e08aff2d9 (diff) | |
crypto: hisilicon/zip - fix the uncleared debug registers
ZIP debug registers aren't cleared even if its driver is removed,
so add a clearing operation when remove driver.
Signed-off-by: Hao Fang <fanghao11@huawei.com>
Signed-off-by: Yang Shen <shenyang39@huawei.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/hisilicon/zip/zip_main.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c index bd53ee72da24..f10bf994ee50 100644 --- a/drivers/crypto/hisilicon/zip/zip_main.c +++ b/drivers/crypto/hisilicon/zip/zip_main.c @@ -91,6 +91,11 @@ #define HZIP_SQE_MASK_OFFSET 64 #define HZIP_SQE_MASK_LEN 48 +#define HZIP_CNT_CLR_CE_EN BIT(0) +#define HZIP_RO_CNT_CLR_CE_EN BIT(2) +#define HZIP_RD_CNT_CLR_CE_EN (HZIP_CNT_CLR_CE_EN | \ + HZIP_RO_CNT_CLR_CE_EN) + static const char hisi_zip_name[] = "hisi_zip"; static struct dentry *hzip_debugfs_root; @@ -604,10 +609,23 @@ failed_to_create: return ret; } +/* hisi_zip_debug_regs_clear() - clear the zip debug regs */ static void hisi_zip_debug_regs_clear(struct hisi_qm *qm) { + int i, j; + + /* clear current_qm */ writel(0x0, qm->io_base + QM_DFX_MB_CNT_VF); writel(0x0, qm->io_base + QM_DFX_DB_CNT_VF); + + /* enable register read_clear bit */ + writel(HZIP_RD_CNT_CLR_CE_EN, qm->io_base + HZIP_SOFT_CTRL_CNT_CLR_CE); + for (i = 0; i < ARRAY_SIZE(core_offsets); i++) + for (j = 0; j < ARRAY_SIZE(hzip_dfx_regs); j++) + readl(qm->io_base + core_offsets[i] + + hzip_dfx_regs[j].offset); + + /* disable register read_clear bit */ writel(0x0, qm->io_base + HZIP_SOFT_CTRL_CNT_CLR_CE); hisi_qm_debug_regs_clear(qm); |