ACPICA: Resources: Provide common part for struct acpi_resource_address structures.

struct acpi_resource_address and struct acpi_resource_extended_address64 share substracts
just at different offsets. To unify the parsing functions, OSPMs like Linux
need a new ACPI_ADDRESS64_ATTRIBUTE as their substructs, so they can
extract the shared data.

This patch also synchronizes the structure changes to the Linux kernel.
The usages are searched by matching the following keywords:
1. acpi_resource_address
2. acpi_resource_extended_address
3. ACPI_RESOURCE_TYPE_ADDRESS
4. ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS
And we found and fixed the usages in the following files:
 arch/ia64/kernel/acpi-ext.c
 arch/ia64/pci/pci.c
 arch/x86/pci/acpi.c
 arch/x86/pci/mmconfig-shared.c
 drivers/xen/xen-acpi-memhotplug.c
 drivers/acpi/acpi_memhotplug.c
 drivers/acpi/pci_root.c
 drivers/acpi/resource.c
 drivers/char/hpet.c
 drivers/pnp/pnpacpi/rsparser.c
 drivers/hv/vmbus_drv.c

Build tests are passed with defconfig/allnoconfig/allyesconfig and
defconfig+CONFIG_ACPI=n.

Original-by: Thomas Gleixner <tglx@linutronix.de>
Original-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 24 insertions, 16 deletions

diff --git a/include/acpi/acrestyp.h b/include/acpi/acrestyp.h
index eb760ca0b2e0..0b75e01212c7 100644
--- a/include/acpi/acrestyp.h
+++ b/include/acpi/acrestyp.h
@@ -305,43 +305,51 @@ struct acpi_resource_source {
         u8                                      max_address_fixed; \
         union acpi_resource_attribute           info;
 
-struct acpi_resource_address {
-ACPI_RESOURCE_ADDRESS_COMMON};
-
-struct acpi_resource_address16 {
-        ACPI_RESOURCE_ADDRESS_COMMON u16 granularity;
+struct acpi_address16_attribute {
+        u16 granularity;
         u16 minimum;
         u16 maximum;
         u16 translation_offset;
         u16 address_length;
-        struct acpi_resource_source resource_source;
 };
 
-struct acpi_resource_address32 {
-        ACPI_RESOURCE_ADDRESS_COMMON u32 granularity;
+struct acpi_address32_attribute {
+        u32 granularity;
         u32 minimum;
         u32 maximum;
         u32 translation_offset;
         u32 address_length;
-        struct acpi_resource_source resource_source;
 };
 
-struct acpi_resource_address64 {
-        ACPI_RESOURCE_ADDRESS_COMMON u64 granularity;
+struct acpi_address64_attribute {
+        u64 granularity;
         u64 minimum;
         u64 maximum;
         u64 translation_offset;
         u64 address_length;
+};
+
+struct acpi_resource_address {
+ACPI_RESOURCE_ADDRESS_COMMON};
+
+struct acpi_resource_address16 {
+        ACPI_RESOURCE_ADDRESS_COMMON struct acpi_address16_attribute address;
+        struct acpi_resource_source resource_source;
+};
+
+struct acpi_resource_address32 {
+        ACPI_RESOURCE_ADDRESS_COMMON struct acpi_address32_attribute address;
+        struct acpi_resource_source resource_source;
+};
+
+struct acpi_resource_address64 {
+        ACPI_RESOURCE_ADDRESS_COMMON struct acpi_address64_attribute address;
         struct acpi_resource_source resource_source;
 };
 
 struct acpi_resource_extended_address64 {
         ACPI_RESOURCE_ADDRESS_COMMON u8 revision_ID;
-        u64 granularity;
-        u64 minimum;
-        u64 maximum;
-        u64 translation_offset;
-        u64 address_length;
+        struct acpi_address64_attribute address;
         u64 type_specific;
 };