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crypto: qat - disable 4xxx AE cluster when lead engine is fused off

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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: 8c8268166e ("crypto: qat - add qat_4xxx driver")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ahsan Atta
2026-03-24 11:11:12 +00:00
committed by Herbert Xu
parent c8aadd63ab
commit b260d53561
1 changed files with 12 additions and 2 deletions
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14
drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c
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@@ -100,9 +100,19 @@ static struct adf_hw_device_class adf_4xxx_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_4XXX_ACCELENGINES_MASK;
return ~me_disable & ADF_4XXX_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;
return mask;
}
static u32 get_accel_cap(struct adf_accel_dev *accel_dev)