5 files changed, 71 insertions, 19 deletions

diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h
index 0b8d14050efa..0bab84ebb15d 100644
--- a/drivers/pnp/base.h
+++ b/drivers/pnp/base.h
@@ -166,6 +166,9 @@ struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev,
 struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev,
                                           resource_size_t start,
                                           resource_size_t end, int flags);
+struct pnp_resource *pnp_add_bus_resource(struct pnp_dev *dev,
+                                          resource_size_t start,
+                                          resource_size_t end);
 
 extern int pnp_debug;
 
diff --git a/drivers/pnp/interface.c b/drivers/pnp/interface.c
index 68b0c04987e4..cfaf5b73540b 100644
--- a/drivers/pnp/interface.c
+++ b/drivers/pnp/interface.c
@@ -278,9 +278,12 @@ static ssize_t pnp_show_current_resources(struct device *dmdev,
                 switch (pnp_resource_type(res)) {
                 case IORESOURCE_IO:
                 case IORESOURCE_MEM:
-                        pnp_printf(buffer, " %#llx-%#llx\n",
+                case IORESOURCE_BUS:
+                        pnp_printf(buffer, " %#llx-%#llx%s\n",
                                    (unsigned long long) res->start,
-                                   (unsigned long long) res->end);
+                                   (unsigned long long) res->end,
+                                   res->flags & IORESOURCE_WINDOW ?
+                                        " window" : "");
                         break;
                 case IORESOURCE_IRQ:
                 case IORESOURCE_DMA:
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
index 5702b2c8691f..54514aa35b09 100644
--- a/drivers/pnp/pnpacpi/rsparser.c
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -177,7 +177,8 @@ static int dma_flags(struct pnp_dev *dev, int type, int bus_master,
 }
 
 static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
-                                               u64 len, int io_decode)
+                                               u64 len, int io_decode,
+                                               int window)
 {
         int flags = 0;
         u64 end = start + len - 1;
@@ -186,6 +187,8 @@ static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
                 flags |= IORESOURCE_IO_16BIT_ADDR;
         if (len == 0 || end >= 0x10003)
                 flags |= IORESOURCE_DISABLED;
+        if (window)
+                flags |= IORESOURCE_WINDOW;
 
         pnp_add_io_resource(dev, start, end, flags);
 }
@@ -247,7 +250,7 @@ static void pnpacpi_parse_allocated_vendor(struct pnp_dev *dev,
 
 static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
                                                 u64 start, u64 len,
-                                                int write_protect)
+                                                int write_protect, int window)
 {
         int flags = 0;
         u64 end = start + len - 1;
@@ -256,15 +259,26 @@ static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
                 flags |= IORESOURCE_DISABLED;
         if (write_protect == ACPI_READ_WRITE_MEMORY)
                 flags |= IORESOURCE_MEM_WRITEABLE;
+        if (window)
+                flags |= IORESOURCE_WINDOW;
 
         pnp_add_mem_resource(dev, start, end, flags);
 }
 
+static void pnpacpi_parse_allocated_busresource(struct pnp_dev *dev,
+                                                u64 start, u64 len)
+{
+        u64 end = start + len - 1;
+
+        pnp_add_bus_resource(dev, start, end);
+}
+
 static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
                                                   struct acpi_resource *res)
 {
         struct acpi_resource_address64 addr, *p = &addr;
         acpi_status status;
+        int window;
 
         status = acpi_resource_to_address64(res, p);
         if (!ACPI_SUCCESS(status)) {
@@ -273,37 +287,42 @@ static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
                 return;
         }
 
-        if (p->producer_consumer == ACPI_PRODUCER)
-                return;
+        window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
 
         if (p->resource_type == ACPI_MEMORY_RANGE)
                 pnpacpi_parse_allocated_memresource(dev,
                         p->minimum, p->address_length,
-                        p->info.mem.write_protect);
+                        p->info.mem.write_protect, window);
         else if (p->resource_type == ACPI_IO_RANGE)
                 pnpacpi_parse_allocated_ioresource(dev,
                         p->minimum, p->address_length,
                         p->granularity == 0xfff ? ACPI_DECODE_10 :
-                                ACPI_DECODE_16);
+                                ACPI_DECODE_16, window);
+        else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
+                pnpacpi_parse_allocated_busresource(dev, p->minimum,
+                                                    p->address_length);
 }
 
 static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev,
                                                       struct acpi_resource *res)
 {
         struct acpi_resource_extended_address64 *p = &res->data.ext_address64;
+        int window;
 
-        if (p->producer_consumer == ACPI_PRODUCER)
-                return;
+        window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
 
         if (p->resource_type == ACPI_MEMORY_RANGE)
                 pnpacpi_parse_allocated_memresource(dev,
                         p->minimum, p->address_length,
-                        p->info.mem.write_protect);
+                        p->info.mem.write_protect, window);
         else if (p->resource_type == ACPI_IO_RANGE)
                 pnpacpi_parse_allocated_ioresource(dev,
                         p->minimum, p->address_length,
                         p->granularity == 0xfff ? ACPI_DECODE_10 :
-                                ACPI_DECODE_16);
+                                ACPI_DECODE_16, window);
+        else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
+                pnpacpi_parse_allocated_busresource(dev, p->minimum,
+                                                    p->address_length);
 }
 
 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
@@ -368,7 +387,7 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
                 pnpacpi_parse_allocated_ioresource(dev,
                         io->minimum,
                         io->address_length,
-                        io->io_decode);
+                        io->io_decode, 0);
                 break;
 
         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
@@ -380,7 +399,7 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
                 pnpacpi_parse_allocated_ioresource(dev,
                         fixed_io->address,
                         fixed_io->address_length,
-                        ACPI_DECODE_10);
+                        ACPI_DECODE_10, 0);
                 break;
 
         case ACPI_RESOURCE_TYPE_VENDOR:
@@ -396,21 +415,21 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
                 pnpacpi_parse_allocated_memresource(dev,
                         memory24->minimum,
                         memory24->address_length,
-                        memory24->write_protect);
+                        memory24->write_protect, 0);
                 break;
         case ACPI_RESOURCE_TYPE_MEMORY32:
                 memory32 = &res->data.memory32;
                 pnpacpi_parse_allocated_memresource(dev,
                         memory32->minimum,
                         memory32->address_length,
-                        memory32->write_protect);
+                        memory32->write_protect, 0);
                 break;
         case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
                 fixed_memory32 = &res->data.fixed_memory32;
                 pnpacpi_parse_allocated_memresource(dev,
                         fixed_memory32->address,
                         fixed_memory32->address_length,
-                        fixed_memory32->write_protect);
+                        fixed_memory32->write_protect, 0);
                 break;
         case ACPI_RESOURCE_TYPE_ADDRESS16:
         case ACPI_RESOURCE_TYPE_ADDRESS32:
diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
index 64d0596bafb5..5b277dbaacde 100644
--- a/drivers/pnp/resource.c
+++ b/drivers/pnp/resource.c
@@ -470,7 +470,8 @@ int pnp_check_dma(struct pnp_dev *dev, struct resource *res)
 unsigned long pnp_resource_type(struct resource *res)
 {
         return res->flags & (IORESOURCE_IO  | IORESOURCE_MEM |
-                             IORESOURCE_IRQ | IORESOURCE_DMA);
+                             IORESOURCE_IRQ | IORESOURCE_DMA |
+                             IORESOURCE_BUS);
 }
 
 struct resource *pnp_get_resource(struct pnp_dev *dev,
@@ -590,6 +591,30 @@ struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev,
         return pnp_res;
 }
 
+struct pnp_resource *pnp_add_bus_resource(struct pnp_dev *dev,
+                                          resource_size_t start,
+                                          resource_size_t end)
+{
+        struct pnp_resource *pnp_res;
+        struct resource *res;
+
+        pnp_res = pnp_new_resource(dev);
+        if (!pnp_res) {
+                dev_err(&dev->dev, "can't add resource for BUS %#llx-%#llx\n",
+                        (unsigned long long) start,
+                        (unsigned long long) end);
+                return NULL;
+        }
+
+        res = &pnp_res->res;
+        res->flags = IORESOURCE_BUS;
+        res->start = start;
+        res->end = end;
+
+        pnp_dbg(&dev->dev, "  add %pr\n", res);
+        return pnp_res;
+}
+
 /*
  * Determine whether the specified resource is a possible configuration
  * for this device.
diff --git a/drivers/pnp/support.c b/drivers/pnp/support.c
index 9585c1c1cc36..f5beb24d036a 100644
--- a/drivers/pnp/support.c
+++ b/drivers/pnp/support.c
@@ -69,8 +69,10 @@ char *pnp_resource_type_name(struct resource *res)
                 return "irq";
         case IORESOURCE_DMA:
                 return "dma";
+        case IORESOURCE_BUS:
+                return "bus";
         }
-        return NULL;
+        return "unknown";
 }
 
 void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc)