We need the sys_info struct in the global variables struct for
cache as ram on k8. The sys_info struct is generally very useful
so it makes sense to start accomodating it.
This patch adds an (empty for now) sys_info struct for geode.
It add sys_info to the global variables struct.
It removes global variables from console.h to a new file,
globalvars.h. Very little code needs to include this file.
This patch is tested on the dbe62 and simnow with no problems.
k8 compilation is now broken but I'm working on it. I'm going through
the eyeballs-bleed code on k8 startup to document it and with any luck
we'll have more functionality by the end of today. But it's hard ...
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@828 f3766cd6-281f-0410-b1cd-43a5c92072e9
existing code does not work due to the characteristics of stage1. This
has been broken since r729.
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@786 f3766cd6-281f-0410-b1cd-43a5c92072e9
code now unconditionally pushes an empty pointer to the stack which is a
placeholder for the pointer to global variable storage. That pointer and
the global variable storage are initialized in global_vars_init().
Creating global variables is now a piece of cake. You don't even have to
touch any asm code, just add them to struct global_vars.
Build tested on all targets, boot tested on Qemu.
NOTES:
- The code is not yet MP safe, but that's due to v3 not being MP safe in
general (and the comments contradict the code regarding MP features).
- K8 code now works by accident.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
git-svn-id: svn://coreboot.org/repository/coreboot-v3@785 f3766cd6-281f-0410-b1cd-43a5c92072e9
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
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
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
(1)we now compile in all printks, which is good: we can print any message provided we can change
the console log level at any time.
(2) The console log level is compiled in and unchangeable, which is bad, as it defeats the purpose of (1).
Add a BIOS_ALWAYS log level. Make console log level a variable. Make functions that set it and get it
visible everywhere. Always print out the version message; this is really *not* noise!
PCI: Simplify pci functions so that they can be used in stage1 or anywhere for that matter. Add
a find function which is needed for many stage1 functions. Note that we copy but also clean up
the libpayload stuff just a bit.
Get rid of config space type 2. If there was ever a platform that used it, I don't know what it was,
and the presence is a needless distraction.
tested and working on DBE62 (which means the console and the pci functions work :-).
There is a remaining problem with dumplxmsrs which nobody understands. It prints out garbage if we use the
%s for the msr names.
Formatting is an issue; if somebody wants to fix formatting they can assume I will ack it. Sorry,
my emacs has gone just nuts.
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@729 f3766cd6-281f-0410-b1cd-43a5c92072e9
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
use it.
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/LinuxBIOSv3@544 f3766cd6-281f-0410-b1cd-43a5c92072e9
post_code.c (thus drop it from console.h).
Instead, have console.h #include post_code.h and drop other
explicit #includes of post_code.h in the code; console.h is already
included in pretty much every file.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@513 f3766cd6-281f-0410-b1cd-43a5c92072e9
This fixes for example printk calls from initram code.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>
git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@505 f3766cd6-281f-0410-b1cd-43a5c92072e9
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@342 f3766cd6-281f-0410-b1cd-43a5c92072e9
all header files.
This closes#40, as I think we don't need to invest time to fix this in
LinuxBIOSv2, but only in LinuxBIOSv3.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@332 f3766cd6-281f-0410-b1cd-43a5c92072e9
- Everything in include/cpu/generic/x86/arch/* goes into
include/arch/x86 now.
- include/cpu/generic/x86/div64.h moves into include/arch/x86, too.
- The former include/cpu/generic/x86/arch/elf.h moved to
include/arch/x86/archelf.h, as elf.h already exists in include/
and we must prevent a name clash.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@314 f3766cd6-281f-0410-b1cd-43a5c92072e9
get rid of a directory which only contains a single file, and
at the same time simplify the #includes and their hierarchies.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@313 f3766cd6-281f-0410-b1cd-43a5c92072e9
