Here's the great news: From now on you don't have to worry about
hitting the right io.h include anymore. Just forget about romcc_io.h
and use io.h instead. This cleanup has a number of advantages, like
you don't have to guard device/ includes for SMM and pre RAM
anymore. This allows to get rid of a number of ifdefs and will
generally make the code more readable and understandable.
Potentially in the future some of the code in the io.h __PRE_RAM__
path should move to device.h or other device/ includes instead,
but that's another incremental change.
Change-Id: I356f06110e2e355e9a5b4b08c132591f36fec7d9
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2872
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Several small improvements of the stack checking code:
- move the CPU0 stack check right before jumping to the payload
and out of hardwaremain (that file is too crowded anyways)
- fix prototype in lib.h
- print size of used stack
- use checkstack function both on CPU0 and CPU1-x
- print amount of stack used per core
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Test: Boot coreboot on Link, see the following output:
...
CPU1: stack: 00156000 - 00157000, lowest used address 00156c68,
stack used: 920 bytes
CPU2: stack: 00155000 - 00156000, lowest used address 00155c68,
stack used: 920 bytes
CPU3: stack: 00154000 - 00155000, lowest used address 00154c68,
stack used: 920 bytes
...
Jumping to boot code at 1110008
CPU0: stack: 00157000 - 00158000, lowest used address 00157af8,
stack used: 1288 bytes
Change-Id: I7b83eeee0186559a0a62daa12e3f7782990fd2df
Reviewed-on: http://review.coreboot.org/1787
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Previous patches implemented stack overflow checking for the APs.
This patch builds on the BSP stack poisoning patch to implement
stack overflow checking for the BSP, and also prints out maximum
stack usage. It reveals that our 32K stack is ridiculously oversized,
especially now that the lzma decoder doesn't use a giant 16K on-stack
array.
Break the stack checking out into a separate function, which
we will later use for the APs.
CPU0: stack from 00180000 to 00188000:Lowest stack address 00187ad8
To test failure, change the DEADBEEF stack poison value in c_start.S
to something else. Then we should get an error like this:
Stack overrun on BSP.Increase stack from current 32768 bytes
CPU0: stack from 00180000 to 00188000:Lowest stack address 00180000
Separate the act of loading from the act of starting the payload. This
allows us better error management and reporting of stack use. Now we
see:
CPU0: stack from 00180000 to 00188000:Lowest stack address 00187ad8
Tested for both success and failure on Link. At the same time, feel free
to carefully check my manipulation of _estack.
Change-Id: Ibb09738b15ec6a5510ac81e45dd82756bfa5aac2
Signed-off-by: Ronald G. Minnich <rminnich@chromium.org>
Reviewed-on: http://review.coreboot.org/1286
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
The current implementation calls die() if memory checking fails.
This isn't always what we want: one might want to print error registers,
or do some other error handling. Introduce ram_check_nodie() for that
reason. It returns 0 if ram check succeeded, otherwise 1.
Change-Id: Ib9a9279120755cf63b5b3ba5e0646492c3c29ac2
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/532
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
coreboot made it kind of complicated to print a character on serial. Not quite
as complicated as UEFI, but too much for a good design. Fix it.
Signed-off-by: Stefan Reinauer <stepan@coreboot.org>
Acked-by: Stefan Reinauer <stepan@coreboot.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6191 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
src/arch/x86.
Signed-off-by: Stefan Reinauer <stepan@coreboot.org>
Acked-by: Patrick Georgi <patrick@georgi-clan.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6161 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
1. Add some more prototypes to lib.h
2. Include console.h when not using romcc
3. Eliminate an unused function
4. Set a default for SSE2, since it is just for ramtest performance
Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5260 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
- Consistently use the same wording and formatting for all license headers.
- Remove useless whitespace, add missing whitespace, fix indentation.
- Add missing "This file is part of the coreboot project." where needed.
- Change "(C) Copyright John Doe" to "Copyright (C) John Doe" for consistency.
- Add some missing "(C)" strings and copyright years where needed.
- Move random comments and file descriptions out of the license header.
- Drop incorrect file descriptions completely (e.g. lpc47m10x/Makefile.inc).
There should be no changes in _content_ of the license headers, if you spot
such changes that's a bug, please report!
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5127 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Stefan Reinauer