Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d37a14bb authored by Linus Torvalds's avatar Linus Torvalds
Browse files

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
parents b562e44f bc94b996

arch/arm/kernel/setup.c

+3 −3
Original line number Diff line number Diff line
@@ -176,13 +176,13 @@ static struct resource mem_res[] = { 
		.name = "Kernel code",

		.start = 0,

		.end = 0,

		.flags = IORESOURCE_MEM

		.flags = IORESOURCE_SYSTEM_RAM

	},

	{

		.name = "Kernel data",

		.start = 0,

		.end = 0,

		.flags = IORESOURCE_MEM

		.flags = IORESOURCE_SYSTEM_RAM

	}

};
@@ -851,7 +851,7 @@ static void __init request_standard_resources(const struct machine_desc *mdesc) 
		res->name  = "System RAM";

		res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));

		res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1;

		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;

		res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;



		request_resource(&iomem_resource, res);

arch/arm/plat-samsung/pm-check.c

+2 −2
Original line number Diff line number Diff line
@@ -53,8 +53,8 @@ static void s3c_pm_run_res(struct resource *ptr, run_fn_t fn, u32 *arg) 
		if (ptr->child != NULL)

			s3c_pm_run_res(ptr->child, fn, arg);



		if ((ptr->flags & IORESOURCE_MEM) &&

		    strcmp(ptr->name, "System RAM") == 0) {

		if ((ptr->flags & IORESOURCE_SYSTEM_RAM)

				== IORESOURCE_SYSTEM_RAM) {

			S3C_PMDBG("Found system RAM at %08lx..%08lx\n",

				  (unsigned long)ptr->start,

				  (unsigned long)ptr->end);

arch/arm64/kernel/setup.c

+3 −3
Original line number Diff line number Diff line
@@ -73,13 +73,13 @@ static struct resource mem_res[] = { 
		.name = "Kernel code",

		.start = 0,

		.end = 0,

		.flags = IORESOURCE_MEM

		.flags = IORESOURCE_SYSTEM_RAM

	},

	{

		.name = "Kernel data",

		.start = 0,

		.end = 0,

		.flags = IORESOURCE_MEM

		.flags = IORESOURCE_SYSTEM_RAM

	}

};
@@ -210,7 +210,7 @@ static void __init request_standard_resources(void) 
		res->name  = "System RAM";

		res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));

		res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1;

		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;

		res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;



		request_resource(&iomem_resource, res);

arch/avr32/kernel/setup.c

+3 −3
Original line number Diff line number Diff line
@@ -49,13 +49,13 @@ static struct resource __initdata kernel_data = { 
	.name	= "Kernel data",

	.start	= 0,

	.end	= 0,

	.flags	= IORESOURCE_MEM,

	.flags	= IORESOURCE_SYSTEM_RAM,

};

static struct resource __initdata kernel_code = {

	.name	= "Kernel code",

	.start	= 0,

	.end	= 0,

	.flags	= IORESOURCE_MEM,

	.flags	= IORESOURCE_SYSTEM_RAM,

	.sibling = &kernel_data,

};
@@ -134,7 +134,7 @@ add_physical_memory(resource_size_t start, resource_size_t end) 
	new->start = start;

	new->end = end;

	new->name = "System RAM";

	new->flags = IORESOURCE_MEM;

	new->flags = IORESOURCE_SYSTEM_RAM;



	*pprev = new;

}

arch/ia64/kernel/efi.c

+10 −3
Original line number Diff line number Diff line
@@ -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);