Commit graph

13 commits

Author SHA1 Message Date
Carl-Daniel Hailfinger
9342d1be4e The ABI wrapper from r775 made the SHARED definitions obsolete. They're
not that readable anyway, so kill them and use standard definitions
instead.

Introduce EXPORT_SYMBOL for shared symbols. EXPORT_SYMBOL tells the
compiler to use the standard calling conventions for a given symbol and
not to optimize it away.
Benefits:
- We can later use gcc -combine -fwhole-program without problems.
- It's a correctness fix for some optimizations.
- We could check for duplicated exported functions at link time.
- We could check whether exported functions are linked into initram or
stage2 by accident.
- We could generate usage statistics and possibly optimize away unused
shared functions.
- Through the above points, significant side reductions of 10-40%

Build and boot tested on qemu.
Build tested on all targets.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>


git-svn-id: svn://coreboot.org/repository/coreboot-v3@780 f3766cd6-281f-0410-b1cd-43a5c92072e9
2008-08-17 21:51:13 +00:00
Carl-Daniel Hailfinger
07f3009f43 Introduce a generic global variable storage mechanism and switch the
printk buffer management to it.

Build tested and boot tested and result tested on Qemu.

Adding a new global variable is not as easy as it looks, but the
comments in the code should be good enough to tell you how.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>


git-svn-id: svn://coreboot.org/repository/coreboot-v3@760 f3766cd6-281f-0410-b1cd-43a5c92072e9
2008-08-14 09:25:58 +00:00
Ronald G. Minnich
7e78ce492a Make some things (die, mem*, resourcemap code, option code) SHARED.
The option code is tricky as it is used by standalone code. If you 
include that file and you are standalone, you now have to define 
STANDALONE (is there a better way?)
Change the cpuid to be a 24-byte string instead of 3 u32s.
Make the CPUID usage PIC-safe by not using %ebx.

Test building on two different geodes, tested to boot on dbe62

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>


git-svn-id: svn://coreboot.org/repository/coreboot-v3@750 f3766cd6-281f-0410-b1cd-43a5c92072e9
2008-08-12 03:39:39 +00:00
Ronald G. Minnich
da9286b479 State of the tree for K8
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Peter Stuge <peter@stuge.se>



git-svn-id: svn://coreboot.org/repository/coreboot-v3@722 f3766cd6-281f-0410-b1cd-43a5c92072e9
2008-08-05 02:48:54 +00:00
Ronald G. Minnich
54b7a9609f With a bug fix from peter and a suggest change by Carl-Daniel
Resource map and a way to use the pci config stuff from stage 1, done in 
a way that will work in stage 2 (but only for systems that use type 1
config cycles; will fail for type MEM config cycles). 

We need to rethink the PCI config stuff per Stepan's comment, in part 
because the device tree now includes things that are NOT PCI devices. 
Stepan's suggestion, to make the functions take busdevfn as the 
parameter, makes a lot of sense. 

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Peter Stuge <peter@stuge.s


git-svn-id: svn://coreboot.org/repository/coreboot-v3@720 f3766cd6-281f-0410-b1cd-43a5c92072e9
2008-08-05 01:19:37 +00:00
Carl-Daniel Hailfinger
5d11489d74 Make printk() log to a buffer.
Tested on Qemu and Geode LX.
Benefits of this patch:
- printk() now works directly after printk_buffer_init(), even before
the serial port is set up.
- If all you want is a log, you don't have to bother with serial output.
- A payload can read and analyze the log.
- You can build on this and buffer log until serial is available, then
flush the messages buffered so far.

The printk buffer is configurable with a default-on Kconfig variable.

If you want to dump the buffer from the Qemu monitor after CAR has been
disabled, use this command:
memsave 0x90000 65536 memdump.bin

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Peter Stuge <peter@stuge.se>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Marc Jones <marc.jones@amd.com>


git-svn-id: svn://coreboot.org/repository/coreboot-v3@590 f3766cd6-281f-0410-b1cd-43a5c92072e9
2008-02-13 15:48:37 +00:00
Stefan Reinauer
6220b632e7 Now version 3: LinuxBIOS -> coreboot rename.
- I left LB_TAG_ intact because they are used by the payloads
- file renames are still missing. see next commit
- some lb_ renames might be missing. feel free to provide patches.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/coreboot-v3@564 f3766cd6-281f-0410-b1cd-43a5c92072e9
2008-01-27 18:54:57 +00:00
Uwe Hermann
7705f6a682 Various smaller code fixes:
- Use 'static' for functions and structs which are not meant to be public.

 - Use 'const' for variables which are not meant to be modified.

 - Move some prototypes into legacy.h where they belong.

 - Drop prototypes for non-existing functions.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Marc Jones <marc.jones@amd.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@460 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-07-20 14:03:39 +00:00
Uwe Hermann
50cdf3827d Merge hlt() into cpu.h where it belongs. Add some documentation.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Peter Stuge <peter@stuge.se>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@449 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-07-12 13:01:42 +00:00
Uwe Hermann
b636ab9cf1 Bring the file cpu.h in sync with the current version of the code in
the Linux kernel (as far as possible). The code is a lot simpler
and shorter now.

Also, add cpu_relax() (which is also part of the Linux file) which
could be useful for busy-loops (but is currently not used).
Drop the cpu_relax() from spinlock.h as it's not spinlock related in any way.

The code builds, and works in QEMU, but is not tested on hardware.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@423 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-06-30 16:57:33 +00:00
Ronald G. Minnich
1e3cd03815 Add a few functions.
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@378 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-06-27 20:01:10 +00:00
Uwe Hermann
f1f8bc2cd4 Document the origins of include/arch/x86/cpu.h (trivial).
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@367 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-06-26 13:46:57 +00:00
Ronald G. Minnich
33c16b873a This adds cpu info support for v3. Other arch-specific cpu support
should go here. This file taken from V2.
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>

Acked-by: Peter Stuge <peter@stuge.se>


git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@365 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-06-25 21:15:44 +00:00