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ia64: Set System RAM type and descriptor

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Change efi_initialize_iomem_resources() to set 'flags' and
'desc' for EFI memory types. IORESOURCE_SYSRAM, a modifier bit,
is set for System RAM as IORESOURCE_MEM is already set.
IORESOURCE_SYSTEM_RAM is defined as
(IORESOURCE_MEM|IORESOURCE_SYSRAM). I/O resource descriptor is
set for "ACPI Non-volatile Storage" and "Persistent Memory".

Also set IORESOURCE_SYSTEM_RAM for "Kernel code", "Kernel data",
and "Kernel bss".

Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-efi <linux-efi@vger.kernel.org>
Cc: linux-ia64@vger.kernel.org
Cc: linux-mm <linux-mm@kvack.org>
Link: http://lkml.kernel.org/r/1453841853-11383-6-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Toshi Kani 2016-01-26 21:57:21 +01:00 committed by Ingo Molnar
parent f33b14a4b9
commit 03cb525eb2
2 changed files with 13 additions and 6 deletions
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13
arch/ia64/kernel/efi.c
View File

@ -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);

6
arch/ia64/kernel/setup.c
View File

@ -80,17 +80,17 @@ unsigned long vga_console_membase;
static struct resource data_resource = {
.name = "Kernel data",
.flags = IORESOURCE_BUSY | IORESOURCE_MEM
.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
};
static struct resource code_resource = {
.name = "Kernel code",
.flags = IORESOURCE_BUSY | IORESOURCE_MEM
.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
};
static struct resource bss_resource = {
.name = "Kernel bss",
.flags = IORESOURCE_BUSY | IORESOURCE_MEM
.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
};
unsigned long ia64_max_cacheline_size;