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Diffstat (limited to 'drivers/pci/endpoint/pci-epf-core.c')
| -rw-r--r-- | drivers/pci/endpoint/pci-epf-core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c index 50bc2892a36c..394395c7f8de 100644 --- a/drivers/pci/endpoint/pci-epf-core.c +++ b/drivers/pci/endpoint/pci-epf-core.c @@ -274,6 +274,10 @@ void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar, if (size < 128) size = 128; + /* According to PCIe base spec, min size for a resizable BAR is 1 MB. */ + if (epc_features->bar[bar].type == BAR_RESIZABLE && size < SZ_1M) + size = SZ_1M; + if (epc_features->bar[bar].type == BAR_FIXED && bar_fixed_size) { if (size > bar_fixed_size) { dev_err(&epf->dev, |