diff options
| author | Eric Huang <jinhuieric.huang@amd.com> | 2021-07-14 14:44:53 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-08-02 17:21:25 -0400 |
| commit | a50fe707803555f89ad878e3965445be0f70eb9f (patch) | |
| tree | 38ead57a342ed7434fde68f45dd4bd472b3389fa | |
| parent | 3cd293a78a58c7172b338fd41b7b7a052db64955 (diff) | |
drm/amdkfd: Only apply heavy-weight TLB flush on Aldebaran
It is to workaround HW bug on other Asics and based on
reverting two commits back:
drm/amdkfd: Add heavy-weight TLB flush after unmapping
drm/amdkfd: Add memory sync before TLB flush on unmap
Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 67541c30327a..86afd37b098d 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -1570,23 +1570,25 @@ static int kfd_ioctl_unmap_memory_from_gpu(struct file *filep, } mutex_unlock(&p->mutex); - err = amdgpu_amdkfd_gpuvm_sync_memory(dev->kgd, (struct kgd_mem *) mem, true); - if (err) { - pr_debug("Sync memory failed, wait interrupted by user signal\n"); - goto sync_memory_failed; - } + if (dev->device_info->asic_family == CHIP_ALDEBARAN) { + err = amdgpu_amdkfd_gpuvm_sync_memory(dev->kgd, + (struct kgd_mem *) mem, true); + if (err) { + pr_debug("Sync memory failed, wait interrupted by user signal\n"); + goto sync_memory_failed; + } - /* Flush TLBs after waiting for the page table updates to complete */ - for (i = 0; i < args->n_devices; i++) { - peer = kfd_device_by_id(devices_arr[i]); - if (WARN_ON_ONCE(!peer)) - continue; - peer_pdd = kfd_get_process_device_data(peer, p); - if (WARN_ON_ONCE(!peer_pdd)) - continue; - kfd_flush_tlb(peer_pdd, TLB_FLUSH_HEAVYWEIGHT); + /* Flush TLBs after waiting for the page table updates to complete */ + for (i = 0; i < args->n_devices; i++) { + peer = kfd_device_by_id(devices_arr[i]); + if (WARN_ON_ONCE(!peer)) + continue; + peer_pdd = kfd_get_process_device_data(peer, p); + if (WARN_ON_ONCE(!peer_pdd)) + continue; + kfd_flush_tlb(peer_pdd, TLB_FLUSH_HEAVYWEIGHT); + } } - kfree(devices_arr); return 0; |