diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index b7201fc..23a560b 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -35,7 +35,7 @@
 #endif

 static unsigned long acpi_dev_memresource_flags(u64 len, u8 write_protect,
-                        bool window)
+                        bool window, bool prefetchable)
 {
     unsigned long flags = IORESOURCE_MEM;

@@ -48,6 +48,9 @@ static unsigned long acpi_dev_memresource_flags(u64
len, u8 write_protect,
     if (window)
         flags |= IORESOURCE_WINDOW;

+    if (prefetchable)
+        flags |= IORESOURCE_PREFETCH;
+
     return flags;
 }

@@ -56,7 +59,8 @@ static void acpi_dev_get_memresource(struct resource
*res, u64 start, u64 len,
 {
     res->start = start;
     res->end = start + len - 1;
-    res->flags = acpi_dev_memresource_flags(len, write_protect, false);
+    res->flags = acpi_dev_memresource_flags(len, write_protect,
+                        false, false);
 }

 /**
@@ -175,7 +179,7 @@ bool acpi_dev_resource_address_space(struct
acpi_resource *ares,
 {
     acpi_status status;
     struct acpi_resource_address64 addr;
-    bool window;
+    bool window, prefetchable;
     u64 len;
     u8 io_decode;

@@ -199,9 +203,11 @@ bool acpi_dev_resource_address_space(struct
acpi_resource *ares,
     switch(addr.resource_type) {
     case ACPI_MEMORY_RANGE:
         len = addr.maximum - addr.minimum + 1;
+        prefetchable =
+            addr.info.mem.caching == ACPI_PREFETCHABLE_MEMORY;
         res->flags = acpi_dev_memresource_flags(len,
                         addr.info.mem.write_protect,
-                        window);
+                        window, prefetchable);
         break;
     case ACPI_IO_RANGE:
         io_decode = addr.granularity == 0xfff ?
@@ -252,7 +258,7 @@ bool acpi_dev_resource_ext_address_space(struct
acpi_resource *ares,
         len = ext_addr->maximum - ext_addr->minimum + 1;
         res->flags = acpi_dev_memresource_flags(len,
                     ext_addr->info.mem.write_protect,
-                    window);
+                    window, false);
         break;
     case ACPI_IO_RANGE:
         io_decode = ext_addr->granularity == 0xfff ?

Patch 2
-----------
commit a3ff8345ffb51885b216ba0ae231252cd88d4e76
Author: Lan Tianyu <tianyu.lan@intel.com>
Date:   Mon Aug 26 15:57:14 2013 +0800

    ACPI/Resource: Add address translation support

diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 23a560b..439ee44 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -196,8 +196,8 @@ bool acpi_dev_resource_address_space(struct
acpi_resource *ares,
     if (ACPI_FAILURE(status))
         return true;

-    res->start = addr.minimum;
-    res->end = addr.maximum;
+    res->start = addr.minimum + addr.translation_offset;
+    res->end = addr.maximum + addr.translation_offset;
     window = addr.producer_consumer == ACPI_PRODUCER;

     switch(addr.resource_type) {


Patch 3
---------------
commit 68bfefe619b49baa5d372e0664a6cb6d5138fad1
Author: Lan Tianyu <tianyu.lan@intel.com>
Date:   Mon Aug 26 21:45:32 2013 +0800

    ACPI: Add new acpi_dev_resource_address_space_with_addr() function

    Add new function which can return the converted struct
acpi_resource_address64.
This will be used to get transaction offset in the setup_resource().

diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 439ee44..98a6c35 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -174,11 +174,11 @@ EXPORT_SYMBOL_GPL(acpi_dev_resource_io);
  * and if that's the case, use the information in it to populate the generic
  * resource object pointed to by @res.
  */
-bool acpi_dev_resource_address_space(struct acpi_resource *ares,
+bool acpi_dev_resource_address_space_with_addr(struct acpi_resource *ares,
+                     struct acpi_resource_address64 *addr,
                      struct resource *res)
 {
     acpi_status status;
-    struct acpi_resource_address64 addr;
     bool window, prefetchable;
     u64 len;
     u8 io_decode;
@@ -192,28 +192,28 @@ bool acpi_dev_resource_address_space(struct
acpi_resource *ares,
         return false;
     }

-    status = acpi_resource_to_address64(ares, &addr);
+    status = acpi_resource_to_address64(ares, addr);
     if (ACPI_FAILURE(status))
         return true;

-    res->start = addr.minimum + addr.translation_offset;
-    res->end = addr.maximum + addr.translation_offset;
-    window = addr.producer_consumer == ACPI_PRODUCER;
+    res->start = addr->minimum + addr->translation_offset;
+    res->end = addr->maximum + addr->translation_offset;
+    window = addr->producer_consumer == ACPI_PRODUCER;

-    switch(addr.resource_type) {
+    switch (addr->resource_type) {
     case ACPI_MEMORY_RANGE:
-        len = addr.maximum - addr.minimum + 1;
+        len = addr->maximum - addr->minimum + 1;
         prefetchable =
-            addr.info.mem.caching == ACPI_PREFETCHABLE_MEMORY;
+            addr->info.mem.caching == ACPI_PREFETCHABLE_MEMORY;
         res->flags = acpi_dev_memresource_flags(len,
-                        addr.info.mem.write_protect,
+                        addr->info.mem.write_protect,
                         window, prefetchable);
         break;
     case ACPI_IO_RANGE:
-        io_decode = addr.granularity == 0xfff ?
+        io_decode = addr->granularity == 0xfff ?
                 ACPI_DECODE_10 : ACPI_DECODE_16;
-        res->flags = acpi_dev_ioresource_flags(addr.minimum,
-                               addr.maximum,
+        res->flags = acpi_dev_ioresource_flags(addr->minimum,
+                               addr->maximum,
                                io_decode, window);
         break;
     case ACPI_BUS_NUMBER_RANGE:
@@ -225,6 +225,16 @@ bool acpi_dev_resource_address_space(struct
acpi_resource *ares,

     return true;
 }
+EXPORT_SYMBOL_GPL(acpi_dev_resource_address_space_with_addr);
+
+bool acpi_dev_resource_address_space(struct acpi_resource *ares,
+                     struct resource *res)
+{
+    struct acpi_resource_address64 addr;
+
+    return acpi_dev_resource_address_space_with_addr(ares, &addr,
+                             res);
+}
 EXPORT_SYMBOL_GPL(acpi_dev_resource_address_space);

 /**
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index a5db4ae..9f5c0d5 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -260,6 +260,9 @@ bool acpi_dev_resource_memory(struct acpi_resource
*ares, struct resource *res);
 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
                      struct resource *res);
+bool acpi_dev_resource_address_space_with_addr(struct acpi_resource *ares,
+                struct acpi_resource_address64 *addr,
+                struct resource *res);
 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
                      struct resource *res);
 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);

Patch 4
--------------
commit a8733a1da756a257d55e68994268174b84b33670
Author: Lan Tianyu <tianyu.lan@intel.com>
Date:   Mon Aug 26 22:53:38 2013 +0800

    X86/PCI/ACPI: Rework setup_resource() via functions acpi resource functions

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index d641897..d4f85a1 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -219,62 +219,15 @@ static void teardown_mcfg_map(struct pci_root_info *info)
 #endif

 static acpi_status
-resource_to_addr(struct acpi_resource *resource,
-            struct acpi_resource_address64 *addr)
-{
-    acpi_status status;
-    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;
-}
-
-static acpi_status
 count_resource(struct acpi_resource *acpi_res, void *data)
 {
     struct pci_root_info *info = data;
-    struct acpi_resource_address64 addr;
-    acpi_status status;
+    struct resource res;

-    status = resource_to_addr(acpi_res, &addr);
-    if (ACPI_SUCCESS(status))
+    if (acpi_dev_resource_address_space(acpi_res, &res)
+        || acpi_dev_resource_memory(acpi_res, &res))
         info->res_num++;
+
     return AE_OK;
 }

@@ -282,27 +235,18 @@ static acpi_status
 setup_resource(struct acpi_resource *acpi_res, void *data)
 {
     struct pci_root_info *info = data;
-    struct resource *res;
+    struct resource *res = &info->res[info->res_num];
     struct acpi_resource_address64 addr;
-    acpi_status status;
-    unsigned long flags;
     u64 start, orig_end, end;

-    status = resource_to_addr(acpi_res, &addr);
-    if (!ACPI_SUCCESS(status))
-        return AE_OK;
+    memset(&addr, 0x00, sizeof(addr));

-    if (addr.resource_type == ACPI_MEMORY_RANGE) {
-        flags = IORESOURCE_MEM;
-        if (addr.info.mem.caching == ACPI_PREFETCHABLE_MEMORY)
-            flags |= IORESOURCE_PREFETCH;
-    } else if (addr.resource_type == ACPI_IO_RANGE) {
-        flags = IORESOURCE_IO;
-    } else
+    if (!(acpi_dev_resource_address_space_with_addr(acpi_res, &addr, res)
+        || acpi_dev_resource_memory(acpi_res, res)))
         return AE_OK;

-    start = addr.minimum + addr.translation_offset;
-    orig_end = end = addr.maximum + addr.translation_offset;
+    start = res->start;
+    orig_end = end = res->end;

     /* Exclude non-addressable range or non-addressable portion of range */
     end = min(end, (u64)iomem_resource.end);
@@ -310,6 +254,7 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
         dev_info(&info->bridge->dev,
             "host bridge window [%#llx-%#llx] "
             "(ignored, not CPU addressable)\n", start, orig_end);
+        memset(&info->res[info->res_num], 0x00, sizeof(*res));
         return AE_OK;
     } else if (orig_end != end) {
         dev_info(&info->bridge->dev,
@@ -318,11 +263,9 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
             start, orig_end, end + 1, orig_end);
     }

-    res = &info->res[info->res_num];
     res->name = info->name;
-    res->flags = flags;
-    res->start = start;
     res->end = end;
+
     info->res_offset[info->res_num] = addr.translation_offset;
     info->res_num++;

