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accel/ivpu: Clear CDTAB entry in case of failure

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Don't leave a context descriptor in case CFGI_ALL flush fails.
Mark it as invalid (by clearing valid bit) so nothing is left in
partially-initialized state.

Signed-off-by: Karol Wachowski <karol.wachowski@intel.com>
Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241017145817.121590-5-jacek.lawrynowicz@linux.intel.com
This commit is contained in:
Karol Wachowski 2024-10-17 16:58:10 +02:00 committed by Jacek Lawrynowicz
parent 94b2a2c0e7
commit add38f8211
1 changed files with 8 additions and 1 deletions
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9
drivers/accel/ivpu/ivpu_mmu.c
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@ -749,10 +749,17 @@ static int ivpu_mmu_cdtab_entry_set(struct ivpu_device *vdev, u32 ssid, u64 cd_d
ret = ivpu_mmu_cmdq_write_cfgi_all(vdev);
if (ret)
goto unlock;
goto err_invalidate;
ret = ivpu_mmu_cmdq_sync(vdev);
if (ret)
goto err_invalidate;
unlock:
mutex_unlock(&mmu->lock);
return 0;
err_invalidate:
WRITE_ONCE(entry[0], 0);
mutex_unlock(&mmu->lock);
return ret;
}