diff options
| author | Ahsan Atta <ahsan.atta@intel.com> | 2026-03-24 14:12:34 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2026-04-03 03:56:11 +0300 |
| commit | f216e0f2d1787e662bb6662c9c522185aa3b855a (patch) | |
| tree | 244ce20d36f3187165850c153c2751cbd0300d4e | |
| parent | b260d53561dd69b29505222ec44cf386ac2c2ca6 (diff) | |
| download | linux-f216e0f2d1787e662bb6662c9c522185aa3b855a.tar.xz | |
crypto: qat - disable 420xx AE cluster when lead engine is fused off
The get_ae_mask() function only disables individual engines based on
the fuse register, but engines are organized in clusters of 4. If the
lead engine of a cluster is fused off, the entire cluster must be
disabled.
Replace the single bitmask inversion with explicit test_bit() checks
on the lead engine of each group, disabling the full ADF_AE_GROUP
when the lead bit is set.
Signed-off-by: Ahsan Atta <ahsan.atta@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Fixes: fcf60f4bcf54 ("crypto: qat - add support for 420xx devices")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c b/drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c index 35105213d40c..0002122219bc 100644 --- a/drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c +++ b/drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c @@ -97,9 +97,25 @@ static struct adf_hw_device_class adf_420xx_class = { static u32 get_ae_mask(struct adf_hw_device_data *self) { - u32 me_disable = self->fuses[ADF_FUSECTL4]; + unsigned long fuses = self->fuses[ADF_FUSECTL4]; + u32 mask = ADF_420XX_ACCELENGINES_MASK; - return ~me_disable & ADF_420XX_ACCELENGINES_MASK; + if (test_bit(0, &fuses)) + mask &= ~ADF_AE_GROUP_0; + + if (test_bit(4, &fuses)) + mask &= ~ADF_AE_GROUP_1; + + if (test_bit(8, &fuses)) + mask &= ~ADF_AE_GROUP_2; + + if (test_bit(12, &fuses)) + mask &= ~ADF_AE_GROUP_3; + + if (test_bit(16, &fuses)) + mask &= ~ADF_AE_GROUP_4; + + return mask; } static u32 uof_get_num_objs(struct adf_accel_dev *accel_dev) |