Commit d7b1946c authored by Vaibhav Jain's avatar Vaibhav Jain Committed by Michael Ellerman

cxl: Force psl data-cache flush during device shutdown

This change adds a force psl data cache flush during device shutdown
callback. This should reduce a possibility of psl holding a dirty
cache line while the CAPP is being reinitialized, which may result in
a UE [load/store] machine check error.
Signed-off-by: default avatarVaibhav Jain <vaibhav@linux.vnet.ibm.com>
Reviewed-by: default avatarAndrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: default avatarFrederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 0e17166d
...@@ -1610,6 +1610,9 @@ static void cxl_pci_remove_adapter(struct cxl *adapter) ...@@ -1610,6 +1610,9 @@ static void cxl_pci_remove_adapter(struct cxl *adapter)
cxl_sysfs_adapter_remove(adapter); cxl_sysfs_adapter_remove(adapter);
cxl_debugfs_adapter_remove(adapter); cxl_debugfs_adapter_remove(adapter);
/* Flush adapter datacache as its about to be removed */
cxl_data_cache_flush(adapter);
cxl_deconfigure_adapter(adapter); cxl_deconfigure_adapter(adapter);
device_unregister(&adapter->dev); device_unregister(&adapter->dev);
......
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