linux-toradex.git/include/linux/efi.h, branch v2.6.27.31

x86 boot: remove some unused extern function declarations

2008-05-25T08:55:10+00:00

Remove three extern declarations for routines
that don't exist.  Fix a typo in a comment.

Signed-off-by: Paul Jackson 
Signed-off-by: Ingo Molnar

x86: EFI_PAGE_SHIFT fix

2008-04-19T17:19:54+00:00

Make x86 EFI code works when EFI_PAGE_SHIFT != PAGE_SHIFT. The
memrage_efi_to_native() provided in this patch can be used on other
EFI platform such as IA64 too.

This patch has been tested on Intel x86_64 platform with EFI 64/32
firmware.

Signed-off-by: Huang Ying 
Signed-off-by: Ingo Molnar 
Signed-off-by: Thomas Gleixner

kexec: add BSS to resource tree

2007-10-22T15:13:19+00:00

Add the BSS to the resource tree just as kernel text and kernel data are in
the resource tree.  The main reason behind this is to avoid crashkernel
reservation in that area.

While it's not strictly necessary to have the BSS in the resource tree (the
actual collision detection is done in the reserve_bootmem() function before),
the usage of the BSS resource should be presented to the user in /proc/iomem
just as Kernel data and Kernel code.

Note: The patch currently is only implemented for x86 and ia64 (because
efi_initialize_iomem_resources() has the same signature on i386 and ia64).

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Bernhard Walle 
Cc: "Eric W. Biederman" 
Cc: Vivek Goyal 
Cc: 
Cc: Thomas Gleixner 
Cc: Ingo Molnar 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

EFI: warn only for pre-1.00 system tables

2007-05-08T18:15:10+00:00

We used to warn unless the EFI system table major revision was exactly 1.
But EFI 2.00 firmware is starting to appear, and the 2.00 changes don't
affect anything in Linux.

Signed-off-by: Bjorn Helgaas 
Cc: Andi Kleen 
Cc: "Luck, Tony" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] efi_set_rtc_mmss() is not __init

2007-02-02T00:17:06+00:00

fix the extern in efi.h

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

[PATCH] i386: Preserve EFI run time regions with memmap parameter

2006-12-07T01:14:11+00:00

When using memmap kernel parameter in EFI boot we should also add to memory map
memory regions of runtime services to enable their mapping later.

AK: merged and cleaned up the patch

Signed-off-by: Artiom Myaskouvskey 
Signed-off-by: Andi Kleen

[PATCH] i386: call efi_get_time during suspend

2006-12-07T01:14:11+00:00

Function efi_get_time called not only during init kernel phase but also
during suspend (from get_cmos_time).

When it is called from get_cmos_time the corresponding runtime service
should be called in virtual and not in physical mode.

Signed-off-by: Artiom Myaskouvskey 
Signed-off-by: Andi Kleen 
Cc: "Narayanan, Chandramouli" 
Cc: "Jiossy, Rami" 
Cc: "Satt, Shai" 
Cc: Andi Kleen 
Cc: Matt Domsch 
Signed-off-by: Andrew Morton

[IA64] rework memory attribute aliasing

2006-05-08T23:32:05+00:00

This closes a couple holes in our attribute aliasing avoidance scheme:

  - The current kernel fails mmaps of some /dev/mem MMIO regions because
    they don't appear in the EFI memory map.  This keeps X from working
    on the Intel Tiger box.

  - The current kernel allows UC mmap of the 0-1MB region of
    /sys/.../legacy_mem even when the chipset doesn't support UC
    access.  This causes an MCA when starting X on HP rx7620 and rx8620
    boxes in the default configuration.

There's more detail in the Documentation/ia64/aliasing.txt file this
adds, but the general idea is that if a region might be covered by
a granule-sized kernel identity mapping, any access via /dev/mem or
mmap must use the same attribute as the identity mapping.

Otherwise, we fall back to using an attribute that is supported
according to the EFI memory map, or to using UC if the EFI memory
map doesn't mention the region.

Signed-off-by: Bjorn Helgaas 
Signed-off-by: Tony Luck

[PATCH] EFI: keep physical table addresses in efi structure

2006-03-26T16:56:54+00:00

Almost all users of the table addresses from the EFI system table want
physical addresses.  So rather than doing the pa->va->pa conversion, just keep
physical addresses in struct efi.

This fixes a DMI bug: the efi structure contained the physical SMBIOS address
on x86 but the virtual address on ia64, so dmi_scan_machine() used ioremap()
on a virtual address on ia64.

This is essentially the same as an earlier patch by Matt Tolentino:
	http://marc.theaimsgroup.com/?l=linux-kernel&m=112130292316281&w=2
except that this changes all table addresses, not just ACPI addresses.

Matt's original patch was backed out because it caused MCAs on HP sx1000
systems.  That problem is resolved by the ioremap() attribute checking added
for ia64.

Signed-off-by: Bjorn Helgaas 
Cc: Matt Domsch 
Cc: "Tolentino, Matthew E" 
Cc: "Brown, Len" 
Cc: Andi Kleen 
Acked-by: "Luck, Tony" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] EFI, /dev/mem: simplify efi_mem_attribute_range()

2006-03-26T16:56:54+00:00

Pass the size, not a pointer to the size, to efi_mem_attribute_range().

This function validates memory regions for the /dev/mem read/write/mmap paths.
The pointer allows arches to reduce the size of the range, but I think that's
unnecessary complexity.  Simplifying it will let me use
efi_mem_attribute_range() to improve the ia64 ioremap() implementation.

Signed-off-by: Bjorn Helgaas 
Cc: Matt Domsch 
Cc: "Tolentino, Matthew E" 
Cc: "Brown, Len" 
Cc: Andi Kleen 
Acked-by: "Luck, Tony" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds