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s390/pci: fix assignment of bus resources

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Adjust bus resources depending on the usage of MIO instructions.

Fixes: 71ba41c9b1 ("s390/pci: provide support for MIO instructions")
Signed-off-by: Sebastian Ott <sebott@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Sebastian Ott
2019-05-16 14:19:51 +02:00
committed by Heiko Carstens
parent 1354b38b3d
commit dcd33b23c9
1 changed files with 4 additions and 1 deletions
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5
arch/s390/pci/pci.c
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@@ -528,7 +528,10 @@ static int zpci_setup_bus_resources(struct zpci_dev *zdev,
if (zdev->bars[i].val & 4) if (zdev->bars[i].val & 4)
flags |= IORESOURCE_MEM_64; flags |= IORESOURCE_MEM_64;
addr = ZPCI_ADDR(entry); if (static_branch_likely(&have_mio))
addr = (unsigned long) zdev->bars[i].mio_wb;
else
addr = ZPCI_ADDR(entry);
size = 1UL << zdev->bars[i].size; size = 1UL << zdev->bars[i].size;
res = __alloc_res(zdev, addr, size, flags); res = __alloc_res(zdev, addr, size, flags);