From 26635112d4d057c9ea38f6284423a30a41a09240 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Thu, 29 Oct 2015 17:35:40 -0500 Subject: PCI: Make Enhanced Allocation bitmasks more obvious Expand bitmask #defines completely. This puts the shift in the code instead of in the #define, but it makes it more obvious in the header file how fields in the register are laid out. No functional change. Signed-off-by: Bjorn Helgaas --- drivers/pci/pci.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'drivers/pci/pci.c') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 364f98b30130..e8330b68cecd 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -2195,7 +2195,7 @@ static int pci_ea_read(struct pci_dev *dev, int offset) int ent_size, ent_offset = offset; resource_size_t start, end; unsigned long flags; - u32 dw0, base, max_offset; + u32 dw0, bei, base, max_offset; u8 prop; bool support_64 = (sizeof(resource_size_t) >= 8); @@ -2208,20 +2208,21 @@ static int pci_ea_read(struct pci_dev *dev, int offset) if (!(dw0 & PCI_EA_ENABLE)) /* Entry not enabled */ goto out; - prop = PCI_EA_PP(dw0); + bei = (dw0 & PCI_EA_BEI) >> 4; + prop = (dw0 & PCI_EA_PP) >> 8; + /* * If the Property is in the reserved range, try the Secondary * Property instead. */ if (prop > PCI_EA_P_BRIDGE_IO && prop < PCI_EA_P_MEM_RESERVED) - prop = PCI_EA_SP(dw0); + prop = (dw0 & PCI_EA_SP) >> 16; if (prop > PCI_EA_P_BRIDGE_IO) goto out; - res = pci_ea_get_resource(dev, PCI_EA_BEI(dw0), prop); + res = pci_ea_get_resource(dev, bei, prop); if (!res) { - dev_err(&dev->dev, "Unsupported EA entry BEI: %u\n", - PCI_EA_BEI(dw0)); + dev_err(&dev->dev, "Unsupported EA entry BEI: %u\n", bei); goto out; } @@ -2293,7 +2294,7 @@ static int pci_ea_read(struct pci_dev *dev, int offset) res->end = end; res->flags = flags; dev_printk(KERN_DEBUG, &dev->dev, "EA - BEI %2u, Prop 0x%02x: %pR\n", - PCI_EA_BEI(dw0), prop, res); + bei, prop, res); out: return offset + ent_size; } -- cgit v1.2.3