linux-toradex.git/include/linux/dmi.h, branch v2.6.29

dmi: Fix build breakage

2009-01-28T15:50:14+00:00

Commit d7b1956fed33d30c4815e848fd7a143722916868 ("DMI: Introduce
dmi_first_match to make the interface more flexible") introduced compile
errors like the following when !CONFIG_DMI

    drivers/ata/sata_sil.c: In function 'sil_broken_system_poweroff':
    drivers/ata/sata_sil.c:713: error: implicit declaration of function 'dmi_first_match'
    drivers/ata/sata_sil.c:713: warning: initialization makes pointer from integer without a cast

We just need a dummy version of dmi_first_match() to fix this all up.

Signed-off-by: Kumar Gala 
Signed-off-by: Linus Torvalds

DMI: Introduce dmi_first_match to make the interface more flexible

2009-01-27T07:15:47+00:00

Some notebooks from HP have the problem that their BIOSes attempt to
spin down hard drives before entering ACPI system states S4 and S5.
This leads to a yo-yo effect during system power-off shutdown and the
last phase of hibernation when the disk is first spun down by the
kernel and then almost immediately turned on and off by the BIOS.
This, in turn, may result in shortening the disk's life times.

To prevent this from happening we can blacklist the affected systems
using DMI information.  However, only the on-board controlles should
be blacklisted and their PCI slot numbers can be used for this
purpose.  Unfortunately the existing interface for checking DMI
information of the system is not very convenient for this purpose,
because to use it, we would have to define special callback functions
or create a separate struct dmi_system_id table for each blacklisted
system.

To overcome this difficulty introduce a new function
dmi_first_match() returning a pointer to the first entry in an array
of struct dmi_system_id elements that matches the system DMI
information.  Then, we can use this pointer to access the entry's
.driver_data field containing the additional information, such as
the PCI slot number, allowing us to do the desired blacklisting.

Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Jeff Garzik

DMI: add dmi_match

2008-12-29T12:39:34+00:00

Add a wrapper for testing system_info which will handle also NULL
system infos.

This will be used by the ata PIIX driver.

Signed-off-by: Jiri Slaby 
Cc: Alexandru Romanescu 
Cc: Tejun Heo 
Cc: Alan Cox 
Signed-off-by: Jeff Garzik

x86: vmware: look for DMI string in the product serial key

2008-11-04T21:59:00+00:00

Impact: Should permit VMware detection on older platforms where the
vendor is changed.  Could theoretically cause a regression if some
weird serial number scheme contains the string "VMware" by pure
chance.  Seems unlikely, especially with the mixed case.

In some user configured cases, VMware may choose not to put a VMware specific
DMI string, but the product serial key is always there and is VMware specific.
Add a interface to check the serial key, when checking for VMware in the DMI
information.

Signed-off-by: Alok N Kataria 
Signed-off-by: H. Peter Anvin

Automatic MODULE_ALIAS() for DMI match tables.

2008-10-13T15:05:06+00:00

This makes modpost handle MODULE_DEVICE_TABLE(dmi, xxxx).

I had to change the string pointers in the match table to char arrays,
and picked a size of 79 bytes almost at random -- do we need to make it
bigger than that? I was a bit concerned about the 'bloat' this
introduces into the match tables, but they should all be __initdata so
it shouldn't matter too much.

(Actually, modpost does go through the relocations and look at most of
them; it wouldn't be impossible to make it handle string pointers -- but
doesn't seem to be worth the effort, since they're __initdata).

Signed-off-by: David Woodhouse

x86: configurable DMI scanning code

2008-04-28T15:58:30+00:00

Turn CONFIG_DMI into a selectable option if EMBEDDED is defined, in
order to be able to remove the DMI table scanning code if it's not
needed, and then reduce the kernel code size.

With CONFIG_DMI (i.e before) :

   text    data     bss     dec     hex filename
1076076  128656   98304 1303036  13e1fc vmlinux

Without CONFIG_DMI (i.e after) :

   text    data     bss     dec     hex filename
1068092  126308   98304 1292704  13b9a0 vmlinux

Result:

   text    data     bss     dec     hex filename
  -7984   -2348       0  -10332   -285c vmlinux

The new option appears in "Processor type and features", only when
CONFIG_EMBEDDED is defined.

This patch is part of the Linux Tiny project, and is based on previous work
done by Matt Mackall .

Signed-off-by: Thomas Petazzoni 
Acked-by: Ingo Molnar 
Cc: Thomas Gleixner 
Cc: "H. Anvin" 
Signed-off-by: Matt Mackall 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

SMBIOS/DMI: add type 41 = Onboard Devices Extended Information

2008-02-08T17:22:37+00:00

From version 2.6 of the SMBIOS standard, type 10 (On Board Devices
Information) becomes obsolete.  The reason for this is that no further
fields can be added to this structure without adversely affecting existing
software's ability to properly parse the data.

Therefore type 41 (Onboard Devices Extended Information) was added.
The structure is as follows:

struct smbios_type_41 {
	u8 type;
	u8 length;
	u16 handle;
	u8 reference_designation_string;
	u8 device_type;		/* same device type as in type 10 */
	u8 device_type_instance;
	u16 segment_group_number;
	u8 bus_number;
	u8 device_function_number;
};

For more info: http://www.dmtf.org/standards/smbios

Signed-off-by: Wim Van Sebroeck 
Cc: Jean Delvare 
Cc: Len Brown 
Cc: Jeff Garzik 
Cc: Tejun Heo 
Cc: Alan Cox 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

dmi: Let drivers walk the DMI table

2008-02-08T01:39:40+00:00

Let drivers walk the DMI table for their own needs. Some drivers need
data stored in OEM-specific DMI records for proper operation.

Signed-off-by: Jean Delvare 
Signed-off-by: Mark M. Hoffman

DMI: remove duplicate helper routine

2008-02-03T22:37:02+00:00

Use existing dmi_get_system_info(),
Delete duplicate dmi_get_slot()

Spotted-by: Wim Van Sebroeck 
Signed-off-by: Len Brown

DMI: create dmi_get_slot()

2008-01-24T02:23:13+00:00

This simply allows other sub-systems (such as ACPI)
to access and print out slots in static dmi_ident[].

Signed-off-by: Len Brown