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drm/amdkfd: To fix sdma page fault issue for GC 11

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For the MQD memory, KMD would always allocate 4K memory,
and mes scheduler would write to the end of MQD for unmap flag.

Signed-off-by: Ruili Ji <ruiliji2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ruili Ji
2023-02-06 18:35:50 +08:00
committed by Alex Deucher
parent a48bba9838
commit 2e2b9baf00
2 changed files with 17 additions and 3 deletions
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5
drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
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@@ -2373,7 +2373,7 @@ struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev)
if (init_mqd_managers(dqm))
goto out_free;
if (allocate_hiq_sdma_mqd(dqm)) {
if (!dev->shared_resources.enable_mes && allocate_hiq_sdma_mqd(dqm)) {
pr_err("Failed to allocate hiq sdma mqd trunk buffer\n");
goto out_free;
}
@@ -2397,7 +2397,8 @@ static void deallocate_hiq_sdma_mqd(struct kfd_dev *dev,
void device_queue_manager_uninit(struct device_queue_manager *dqm)
{
dqm->ops.uninitialize(dqm);
deallocate_hiq_sdma_mqd(dqm->dev, &dqm->hiq_sdma_mqd);
if (!dqm->dev->shared_resources.enable_mes)
deallocate_hiq_sdma_mqd(dqm->dev, &dqm->hiq_sdma_mqd);
kfree(dqm);
}