Hi Giovanni:
On Thu, Sep 16, 2021 at 03:45:41PM +0100, Giovanni Cabiddu wrote:
>
> +static int adf_init_device(struct adf_accel_dev *accel_dev)
> +{
> + void __iomem *addr;
> + u32 status;
> + u32 csr;
> + int ret;
> +
> + addr = (&GET_BARS(accel_dev)[ADF_4XXX_PMISC_BAR])->virt_addr;
> +
> + /* Temporarily mask PM interrupt */
> + csr = ADF_CSR_RD(addr, ADF_4XXX_ERRMSK2);
> + csr |= ADF_4XXX_PM_SOU;
> + ADF_CSR_WR(addr, ADF_4XXX_ERRMSK2, csr);
> +
> + /* Set DRV_ACTIVE bit to power up the device */
> + ADF_CSR_WR(addr, ADF_4XXX_PM_INTERRUPT, ADF_4XXX_PM_DRV_ACTIVE);
> +
> + /* Poll status register to make sure the device is powered up */
> + ret = read_poll_timeout(ADF_CSR_RD, status,
> + status & ADF_4XXX_PM_INIT_STATE,
> + ADF_4XXX_PM_POLL_DELAY_US,
> + ADF_4XXX_PM_POLL_TIMEOUT_US, true, addr,
> + ADF_4XXX_PM_STATUS);
> + if (ret)
> + dev_err(&GET_DEV(accel_dev), "Failed to power up the device\n");
> +
> + return ret;
> +}
I just received a bug report that this printk is triggering on
a warm reboot via kexec:
https://issues.redhat.com/browse/RHEL-84366
[ 11.040319] vpr089-p05-15u kernel: 4xxx 0000:01:00.0: Failed to power up the device
[ 11.148557] vpr089-p05-15u kernel: 4xxx 0000:01:00.0: Failed to initialize device
[ 11.148702] vpr089-p05-15u kernel: 4xxx 0000:01:00.0: Resetting device qat_dev0
[ 11.148809] vpr089-p05-15u kernel: 4xxx 0000:01:00.0: probe with driver 4xxx failed with error -14
Could you please take a look at it?
Thanks,
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
