Merge branch 'bjorn-pci-root-v4-2.6.35' into release

[pandora-kernel.git] / arch / x86 / pci / acpi.c

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 0b7882d..9dcf43d 100644 (file)
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -3,6 +3,7 @@
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/dmi.h>
+#include <linux/slab.h>
 #include <asm/numa.h>
 #include <asm/pci_x86.h>
 
@@ -65,14 +66,44 @@ resource_to_addr(struct acpi_resource *resource,
                        struct acpi_resource_address64 *addr)
 {
        acpi_status status;
-
-       status = acpi_resource_to_address64(resource, addr);
-       if (ACPI_SUCCESS(status) &&
-           (addr->resource_type == ACPI_MEMORY_RANGE ||
-           addr->resource_type == ACPI_IO_RANGE) &&
-           addr->address_length > 0 &&
-           addr->producer_consumer == ACPI_PRODUCER) {
+       struct acpi_resource_memory24 *memory24;
+       struct acpi_resource_memory32 *memory32;
+       struct acpi_resource_fixed_memory32 *fixed_memory32;
+
+       memset(addr, 0, sizeof(*addr));
+       switch (resource->type) {
+       case ACPI_RESOURCE_TYPE_MEMORY24:
+               memory24 = &resource->data.memory24;
+               addr->resource_type = ACPI_MEMORY_RANGE;
+               addr->minimum = memory24->minimum;
+               addr->address_length = memory24->address_length;
+               addr->maximum = addr->minimum + addr->address_length - 1;
+               return AE_OK;
+       case ACPI_RESOURCE_TYPE_MEMORY32:
+               memory32 = &resource->data.memory32;
+               addr->resource_type = ACPI_MEMORY_RANGE;
+               addr->minimum = memory32->minimum;
+               addr->address_length = memory32->address_length;
+               addr->maximum = addr->minimum + addr->address_length - 1;
                return AE_OK;
+       case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
+               fixed_memory32 = &resource->data.fixed_memory32;
+               addr->resource_type = ACPI_MEMORY_RANGE;
+               addr->minimum = fixed_memory32->address;
+               addr->address_length = fixed_memory32->address_length;
+               addr->maximum = addr->minimum + addr->address_length - 1;
+               return AE_OK;
+       case ACPI_RESOURCE_TYPE_ADDRESS16:
+       case ACPI_RESOURCE_TYPE_ADDRESS32:
+       case ACPI_RESOURCE_TYPE_ADDRESS64:
+               status = acpi_resource_to_address64(resource, addr);
+               if (ACPI_SUCCESS(status) &&
+                   (addr->resource_type == ACPI_MEMORY_RANGE ||
+                   addr->resource_type == ACPI_IO_RANGE) &&
+                   addr->address_length > 0) {
+                       return AE_OK;
+               }
+               break;
        }
        return AE_ERROR;
 }
@@ -90,30 +121,6 @@ count_resource(struct acpi_resource *acpi_res, void *data)
        return AE_OK;
 }
 
-static void
-align_resource(struct acpi_device *bridge, struct resource *res)
-{
-       int align = (res->flags & IORESOURCE_MEM) ? 16 : 4;
-
-       /*
-        * Host bridge windows are not BARs, but the decoders on the PCI side
-        * that claim this address space have starting alignment and length
-        * constraints, so fix any obvious BIOS goofs.
-        */
-       if (!IS_ALIGNED(res->start, align)) {
-               dev_printk(KERN_DEBUG, &bridge->dev,
-                          "host bridge window %pR invalid; "
-                          "aligning start to %d-byte boundary\n", res, align);
-               res->start &= ~(align - 1);
-       }
-       if (!IS_ALIGNED(res->end + 1, align)) {
-               dev_printk(KERN_DEBUG, &bridge->dev,
-                          "host bridge window %pR invalid; "
-                          "aligning end to %d-byte boundary\n", res, align);
-               res->end = ALIGN(res->end, align) - 1;
-       }
-}
-
 static acpi_status
 setup_resource(struct acpi_resource *acpi_res, void *data)
 {
@@ -123,7 +130,7 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
        acpi_status status;
        unsigned long flags;
        struct resource *root, *conflict;
-       u64 start, end, max_len;
+       u64 start, end;
 
        status = resource_to_addr(acpi_res, &addr);
        if (!ACPI_SUCCESS(status))
@@ -140,19 +147,8 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
        } else
                return AE_OK;
 
-       max_len = addr.maximum - addr.minimum + 1;
-       if (addr.address_length > max_len) {
-               dev_printk(KERN_DEBUG, &info->bridge->dev,
-                          "host bridge window length %#llx doesn't fit in "
-                          "%#llx-%#llx, trimming\n",
-                          (unsigned long long) addr.address_length,
-                          (unsigned long long) addr.minimum,
-                          (unsigned long long) addr.maximum);
-               addr.address_length = max_len;
-       }
-
        start = addr.minimum + addr.translation_offset;
-       end = start + addr.address_length - 1;
+       end = addr.maximum + addr.translation_offset;
 
        res = &info->res[info->res_num];
        res->name = info->name;
@@ -160,7 +156,6 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
        res->start = start;
        res->end = end;
        res->child = NULL;
-       align_resource(info->bridge, res);
 
        if (!pci_use_crs) {
                dev_printk(KERN_DEBUG, &info->bridge->dev,