diff options
| author | Vaibhav Jain <vaibhav@linux.vnet.ibm.com> | 2017-01-04 11:48:52 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-15 15:53:13 +0100 |
| commit | 870b502a02086d22274403df7d39f1cd693594f7 (patch) | |
| tree | 60773a6683e732588066c740b1217577c96b7b2e /drivers/misc | |
| parent | f88f299a94e02d6beee034d5421016a974783ee2 (diff) | |
cxl: Force psl data-cache flush during device shutdown
[ Upstream commit d7b1946c7925a270062b2e0718aa57b42ba619c0 ]
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: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/cxl/pci.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c index fa4fe02cfef4..eef202d4399b 100644 --- a/drivers/misc/cxl/pci.c +++ b/drivers/misc/cxl/pci.c @@ -1620,6 +1620,9 @@ static void cxl_pci_remove_adapter(struct cxl *adapter) cxl_sysfs_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); device_unregister(&adapter->dev); |