Merge branch 'core-resources-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull ram resource handling changes from Ingo Molnar:
 "Core kernel resource handling changes to support NVDIMM error
  injection.

  This tree introduces a new I/O resource type, IORESOURCE_SYSTEM_RAM,
  for System RAM while keeping the current IORESOURCE_MEM type bit set
  for all memory-mapped ranges (including System RAM) for backward
  compatibility.

  With this resource flag it no longer takes a strcmp() loop through the
  resource tree to find "System RAM" resources.

  The new resource type is then used to extend ACPI/APEI error injection
  facility to also support NVDIMM"

* 'core-resources-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  ACPI/EINJ: Allow memory error injection to NVDIMM
  resource: Kill walk_iomem_res()
  x86/kexec: Remove walk_iomem_res() call with GART type
  x86, kexec, nvdimm: Use walk_iomem_res_desc() for iomem search
  resource: Add walk_iomem_res_desc()
  memremap: Change region_intersects() to take @flags and @desc
  arm/samsung: Change s3c_pm_run_res() to use System RAM type
  resource: Change walk_system_ram() to use System RAM type
  drivers: Initialize resource entry to zero
  xen, mm: Set IORESOURCE_SYSTEM_RAM to System RAM
  kexec: Set IORESOURCE_SYSTEM_RAM for System RAM
  arch: Set IORESOURCE_SYSTEM_RAM flag for System RAM
  ia64: Set System RAM type and descriptor
  x86/e820: Set System RAM type and descriptor
  resource: Add I/O resource descriptor
  resource: Handle resource flags properly
  resource: Add System RAM resource type

1 files changed, 10 insertions, 3 deletions

diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index caae3f4..300dac3 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -1178,7 +1178,7 @@ efi_initialize_iomem_resources(struct resource *code_resource,
 	efi_memory_desc_t *md;
 	u64 efi_desc_size;
 	char *name;
-	unsigned long flags;
+	unsigned long flags, desc;
 
 	efi_map_start = __va(ia64_boot_param->efi_memmap);
 	efi_map_end   = efi_map_start + ia64_boot_param->efi_memmap_size;
@@ -1193,6 +1193,8 @@ efi_initialize_iomem_resources(struct resource *code_resource,
 			continue;
 
 		flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+		desc = IORES_DESC_NONE;
+
 		switch (md->type) {
 
 			case EFI_MEMORY_MAPPED_IO:
@@ -1207,14 +1209,17 @@ efi_initialize_iomem_resources(struct resource *code_resource,
 				if (md->attribute & EFI_MEMORY_WP) {
 					name = "System ROM";
 					flags |= IORESOURCE_READONLY;
-				} else if (md->attribute == EFI_MEMORY_UC)
+				} else if (md->attribute == EFI_MEMORY_UC) {
 					name = "Uncached RAM";
-				else
+				} else {
 					name = "System RAM";
+					flags |= IORESOURCE_SYSRAM;
+				}
 				break;
 
 			case EFI_ACPI_MEMORY_NVS:
 				name = "ACPI Non-volatile Storage";
+				desc = IORES_DESC_ACPI_NV_STORAGE;
 				break;
 
 			case EFI_UNUSABLE_MEMORY:
@@ -1224,6 +1229,7 @@ efi_initialize_iomem_resources(struct resource *code_resource,
 
 			case EFI_PERSISTENT_MEMORY:
 				name = "Persistent Memory";
+				desc = IORES_DESC_PERSISTENT_MEMORY;
 				break;
 
 			case EFI_RESERVED_TYPE:
@@ -1246,6 +1252,7 @@ efi_initialize_iomem_resources(struct resource *code_resource,
 		res->start = md->phys_addr;
 		res->end = md->phys_addr + efi_md_size(md) - 1;
 		res->flags = flags;
+		res->desc = desc;
 
 		if (insert_resource(&iomem_resource, res) < 0)
 			kfree(res);