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crypto: hisilicon - re-enable address prefetch after device resuming

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When the device resumes from a suspended state, it will revert to its
initial state and requires re-enabling. Currently, the address prefetch
function is not re-enabled after device resuming. Move the address prefetch
enable to the initialization process. In this way, the address prefetch
can be enabled when the device resumes by calling the initialization
process.

Fixes: 607c191b37 ("crypto: hisilicon - support runtime PM for accelerator device")
Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Chenghai Huang
2025-08-21 09:38:05 +08:00
committed by Herbert Xu
parent d4e0815104
commit 0dcd21443d
4 changed files with 43 additions and 48 deletions
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80
drivers/crypto/hisilicon/sec2/sec_main.c
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@@ -464,6 +464,45 @@ static void sec_set_endian(struct hisi_qm *qm)
writel_relaxed(reg, qm->io_base + SEC_CONTROL_REG);
}
static void sec_close_sva_prefetch(struct hisi_qm *qm)
{
u32 val;
int ret;
if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps))
return;
val = readl_relaxed(qm->io_base + SEC_PREFETCH_CFG);
val |= SEC_PREFETCH_DISABLE;
writel(val, qm->io_base + SEC_PREFETCH_CFG);
ret = readl_relaxed_poll_timeout(qm->io_base + SEC_SVA_TRANS,
val, !(val & SEC_SVA_DISABLE_READY),
SEC_DELAY_10_US, SEC_POLL_TIMEOUT_US);
if (ret)
pci_err(qm->pdev, "failed to close sva prefetch\n");
}
static void sec_open_sva_prefetch(struct hisi_qm *qm)
{
u32 val;
int ret;
if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps))
return;
/* Enable prefetch */
val = readl_relaxed(qm->io_base + SEC_PREFETCH_CFG);
val &= SEC_PREFETCH_ENABLE;
writel(val, qm->io_base + SEC_PREFETCH_CFG);
ret = readl_relaxed_poll_timeout(qm->io_base + SEC_PREFETCH_CFG,
val, !(val & SEC_PREFETCH_DISABLE),
SEC_DELAY_10_US, SEC_POLL_TIMEOUT_US);
if (ret)
pci_err(qm->pdev, "failed to open sva prefetch\n");
}
static void sec_engine_sva_config(struct hisi_qm *qm)
{
u32 reg;
@@ -497,45 +536,7 @@ static void sec_engine_sva_config(struct hisi_qm *qm)
writel_relaxed(reg, qm->io_base +
SEC_INTERFACE_USER_CTRL1_REG);
}
}
static void sec_open_sva_prefetch(struct hisi_qm *qm)
{
u32 val;
int ret;
if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps))
return;
/* Enable prefetch */
val = readl_relaxed(qm->io_base + SEC_PREFETCH_CFG);
val &= SEC_PREFETCH_ENABLE;
writel(val, qm->io_base + SEC_PREFETCH_CFG);
ret = readl_relaxed_poll_timeout(qm->io_base + SEC_PREFETCH_CFG,
val, !(val & SEC_PREFETCH_DISABLE),
SEC_DELAY_10_US, SEC_POLL_TIMEOUT_US);
if (ret)
pci_err(qm->pdev, "failed to open sva prefetch\n");
}
static void sec_close_sva_prefetch(struct hisi_qm *qm)
{
u32 val;
int ret;
if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps))
return;
val = readl_relaxed(qm->io_base + SEC_PREFETCH_CFG);
val |= SEC_PREFETCH_DISABLE;
writel(val, qm->io_base + SEC_PREFETCH_CFG);
ret = readl_relaxed_poll_timeout(qm->io_base + SEC_SVA_TRANS,
val, !(val & SEC_SVA_DISABLE_READY),
SEC_DELAY_10_US, SEC_POLL_TIMEOUT_US);
if (ret)
pci_err(qm->pdev, "failed to close sva prefetch\n");
sec_open_sva_prefetch(qm);
}
static void sec_enable_clock_gate(struct hisi_qm *qm)
@@ -1152,7 +1153,6 @@ static int sec_pf_probe_init(struct sec_dev *sec)
if (ret)
return ret;
sec_open_sva_prefetch(qm);
hisi_qm_dev_err_init(qm);
sec_debug_regs_clear(qm);
ret = sec_show_last_regs_init(qm);