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crypto: qat - disable 420xx 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: fcf60f4bcf ("crypto: qat - add support for 420xx devices")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ahsan Atta
2026-04-03 08:56:11 +08:00
committed by Herbert Xu
parent b260d53561
commit f216e0f2d1
1 changed files with 18 additions and 2 deletions
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drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c
+18 -2
View File
@@ -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)