diff options
| author | Qiuxu Zhuo <[email protected]> | 2017-08-14 23:48:45 +0800 |
|---|---|---|
| committer | Borislav Petkov <[email protected]> | 2017-08-19 10:47:24 +0200 |
| commit | 5fd77cb3bac77f690d1d9cf57dc7851fcb3e7945 (patch) | |
| tree | 269ceff2bff83778940cf2f4750798530b624688 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | d84676a9e12817c8435e836911800bdcc67928a0 (diff) | |
EDAC, pnd2: Conditionally unhide/hide the P2SB PCI device to read BAR
On Deverton server, the P2SB PCI device (DEV:1F, FUN:1) is used by multiple
device drivers.
If it's hidden by some device driver (e.g. with the i801 I2C driver,
the commit
9424693035a5 ("i2c: i801: Create iTCO device on newer Intel PCHs")
unconditionally hid the P2SB PCI device wrongly) it will make the
pnd2_edac driver read out an invalid BAR value of 0xffffffff and then
fail on ioremap().
Therefore, store the presence state of P2SB PCI device before unhiding
it for reading BAR and restore the presence state after reading BAR.
Signed-off-by: Qiuxu Zhuo <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: linux-edac <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Borislav Petkov <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions