Merge branches 'pci/enumeration', 'pci/misc' and 'pci/virtualization' into next

[firefly-linux-kernel-4.4.55.git] / drivers / pci / quirks.c

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 80c2d014283d12c86d83ad22e98531bc8121cdc3..592178981f4effe9c89febe0fb45f9113c831621 100644 (file)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -24,6 +24,7 @@
 #include <linux/ioport.h>
 #include <linux/sched.h>
 #include <linux/ktime.h>
+#include <linux/mm.h>
 #include <asm/dma.h>   /* isa_dma_bridge_buggy */
 #include "pci.h"
 
@@ -287,6 +288,25 @@ static void quirk_citrine(struct pci_dev *dev)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM,    PCI_DEVICE_ID_IBM_CITRINE,      quirk_citrine);
 
+/*  On IBM Crocodile ipr SAS adapters, expand BAR to system page size */
+static void quirk_extend_bar_to_page(struct pci_dev *dev)
+{
+       int i;
+
+       for (i = 0; i < PCI_STD_RESOURCE_END; i++) {
+               struct resource *r = &dev->resource[i];
+
+               if (r->flags & IORESOURCE_MEM && resource_size(r) < PAGE_SIZE) {
+                       r->end = PAGE_SIZE - 1;
+                       r->start = 0;
+                       r->flags |= IORESOURCE_UNSET;
+                       dev_info(&dev->dev, "expanded BAR %d to page size: %pR\n",
+                                i, r);
+               }
+       }
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, 0x034a, quirk_extend_bar_to_page);
+
 /*
  *  S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
  *  If it's needed, re-allocate the region.
@@ -2985,6 +3005,8 @@ DECLARE_PCI_FIXUP_HEADER(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */
  */
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_REALTEK, 0x8169,
                         quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MELLANOX, PCI_ANY_ID,
+                        quirk_broken_intx_masking);
 
 #ifdef CONFIG_ACPI
 /*