diff options
| author | Wojciech Ziemba <wojciech.ziemba@intel.com> | 2022-02-10 13:38:27 +0000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2022-02-18 16:21:09 +1100 |
| commit | e5745f34113b758b45d134dec04a7df94dc67131 (patch) | |
| tree | c803611502a5f435a0aa2cd913715a9899b94b46 /drivers/crypto/qat/qat_common/adf_isr.c | |
| parent | f734409c77d7e422bc759c53ad234e6af9b56938 (diff) | |
crypto: qat - enable power management for QAT GEN4
Add support for HW QAT Power Management (PM) feature.
This feature is enabled at init time (1) by sending an admin message to
the firmware, targeting the admin AE, that sets the idle time before
the device changes state and (2) by unmasking the PM source of interrupt
in ERRMSK2.
The interrupt handler is extended to handle a PM interrupt which
is triggered by HW when a PM transition occurs. In this case, the
driver responds acknowledging the transaction using the HOST_MSG
mailbox.
Signed-off-by: Wojciech Ziemba <wojciech.ziemba@intel.com>
Co-developed-by: Marcinx Malinowski <marcinx.malinowski@intel.com>
Signed-off-by: Marcinx Malinowski <marcinx.malinowski@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Marco Chiappero <marco.chiappero@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/qat/qat_common/adf_isr.c')
| -rw-r--r-- | drivers/crypto/qat/qat_common/adf_isr.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_isr.c b/drivers/crypto/qat/qat_common/adf_isr.c index 803b89ba9670..a35149f8bf1e 100644 --- a/drivers/crypto/qat/qat_common/adf_isr.c +++ b/drivers/crypto/qat/qat_common/adf_isr.c @@ -124,6 +124,17 @@ static bool adf_handle_vf2pf_int(struct adf_accel_dev *accel_dev) } #endif /* CONFIG_PCI_IOV */ +static bool adf_handle_pm_int(struct adf_accel_dev *accel_dev) +{ + struct adf_hw_device_data *hw_data = accel_dev->hw_device; + + if (hw_data->handle_pm_interrupt && + hw_data->handle_pm_interrupt(accel_dev)) + return true; + + return false; +} + static irqreturn_t adf_msix_isr_ae(int irq, void *dev_ptr) { struct adf_accel_dev *accel_dev = dev_ptr; @@ -134,6 +145,9 @@ static irqreturn_t adf_msix_isr_ae(int irq, void *dev_ptr) return IRQ_HANDLED; #endif /* CONFIG_PCI_IOV */ + if (adf_handle_pm_int(accel_dev)) + return IRQ_HANDLED; + dev_dbg(&GET_DEV(accel_dev), "qat_dev%d spurious AE interrupt\n", accel_dev->accel_id); |