A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 11:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

EDAC, pnd2: Mask off the lower four bits of a BAR

Browse source 
Bit[0] of BAR is always zero. Bit[2:1] and bit[3] of BAR contain the
information of 'type' and the 'prefetchable' accordingly. Therefore,
mask the lower four bits to retrieve the actual base address of a BAR.

Signed-off-by: Qiuxu Zhuo <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: linux-edac <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Borislav Petkov <[email protected]>
This commit is contained in:
Qiuxu Zhuo 2017-08-14 23:48:13 +08:00 • committed by Borislav Petkov
commit d84676a9e1
1 changed files with 1 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

1
drivers/edac/pnd2_edac.c
View file

@ -241,6 +241,7 @@ static u64 get_sideband_reg_base_addr(void)
if (pdev) {
pci_read_config_dword(pdev, 0x10, &lo);
pci_read_config_dword(pdev, 0x14, &hi);
lo &= 0xfffffff0;
pci_dev_put(pdev);
return (U64_LSHIFT(hi, 32) | U64_LSHIFT(lo, 0));
} else {