If threads called alloc_find_dev() with same device_path
simultaneously, two device nodes could be allocated.
This bug is not triggered by current code.
Change-Id: Ifc87021c8d6f422901c5de5dd17392e3e2309afa
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/1188
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Sven Schnelle <svens@stackframe.org>
Since we do not run option roms in normal mode nothing was
initializing the BDA/EBDA and yet Linux depends very much
on it having sane values here. For the most part the kernel
tries to work around this not being initialized, but every
once in awhile (1/300 boots or so) it would end up reading
something that looked sane from BDA but was not and then
it would panic.
In this change the EBDA is unconditionally setup before devices
are initialized. I'm not set on the location in dev_initialize()
but there does not seem to be another place to hook it in so
that it runs just once for ALL platforms regardless of whether
they use option roms or not. (possibly hardwaremain?)
The EBDA setup code has been moved into its own location in
arch/x86/lib/ebda.c so it can be compiled in even if the option
rom code is not.
The low memory size is still set to 1MB which is enough to make
linux happy without having to hook into each mainboard to get a
more appropriate value. The setup_ebda() function takes inputs
so it could be changed for a mainboard if needed.
OLD/BROKEN would read garbage. Examples from different boots:
ebda_addr=0x75e80 lowmem=0x1553400
ebda_addr=0x5e080 lowmem=0x3e51400
ebda_addr=0x7aa80 lowmem=0x2f8a800
NEW/FIXED now reads consistent values:
ebda_addr=0xf6000 lowmem=0x100000
Change-Id: I6cb79f0e3e43cc65f7e5fe98b6cad1a557ccd949
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: http://review.coreboot.org/769
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
We use the L modifier in a non-standard way (for
long long instead of long double, which we have no
business with).
clang complains, to reduce its use, to make
emulation/qemu-x86 happier.
Long term, we should consider eliminating public uses
of 'L' (but internal use in vtxprintf to denote
long long is fine)
Change-Id: If9a17d9ae9925cdc8736445e7d5eedc59c7028c6
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/781
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This reverts commit 8660a1aa56
This commit has been found to cause problems with vbios and option rom init
in seabios. It has been found by several people and requires more analysis
before being recommitted.
Change-Id: Ie5f54e417e7a0d8bd8ca4c0a573976afeaa9e230
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/671
Tested-by: build bot (Jenkins)
Reviewed-by: Denis Carikli <GNUtoo@no-log.org>
Reviewed-by: Marc Jones <marcj303@gmail.com>
If multiple VGA-compatible legacy graphic cards decode the IO range
3B0-3BB, 3C0-3DF and MEM range A00000-BFFFF.
Windows 7 complain a resource conflict, so only one VGA card can
works at the same time.
There is a discussion in coreboot mail list before,
please reference thread: "how to prevent legacy resource conflictwith multipleVGA cards"
http://www.coreboot.org/pipermail/coreboot/2010-October/061508.html
Linux using VGA Arbiter module(vgaarb) to resolve this resource conflict,
Please see the following linux dmesg log, more information can be found in
Linux source dir Documentation/vgaarbiter.txt.
But it seems that windows don't dealwith this conflict.
~# dmesg | grep -i vgaarb
[ 0.774076] vgaarb: device added: PCI:0000:00:01.0,decodes=io+mem,owns=io+mem
[ 0.776065] vgaarb: device added: PCI:0000:01:00.0,decodes=io+mem,owns=none,l
[ 0.780051] vgaarb: loaded
[ 0.784049] vgaarb: bridge control possible 0000:01:00.0
[ 0.788050] vgaarb: bridge control possible 0000:00:01.0
For the second legacy graphic device, coreboot already disabled the
IO and MEM decode in function set_vga_bridge_bits().
But it will be enabled again in function pci_set_resource(),
if the second legacy vga-compatible graphic device take any IO/MEM resources.
Following log printed by enable_resources() shows the problem:
...snip...
PCI: 00:00.0 cmd <- 06
PCI: 00:01.0 subsystem <- 1022/1410
PCI: 00:01.0 cmd <- 07 <== The first graphic device
PCI: 00:01.1 subsystem <- 1022/1410
PCI: 00:01.1 cmd <- 02
PCI: 00:02.0 bridge ctrl <- 0003
PCI: 00:02.0 cmd <- 07
...snip...
PCI: 01:00.0 cmd <- 03 <== The second graphic device
PCI: 01:00.1 cmd <- 02
PCI: 02:00.0 cmd <- 02
PCI: 03:00.0 cmd <- 03
done.
...snip...
The IO & MEM decoding on the second vga graphic device should be disabled.
Please reference PCI spec. section 3.10 in detail.
set_vga_bridge_bits() would do this work for us, it did the right thing,
but was put to the wrong place, the setting would be overwritten by
assign_resources() later.
In order to make sure the set_vga_bridge_bits() setting not be
overwritten by others, moving the call of set_vga_bridge_bits()
to the end of dev_configure(), instead of at the beginning.
This patch resolved the dual graphic cards resource conflict in windows7,
multiple vga-compatible graphic cards can work together in windows7.
Signed-off-by: Kerry Sheh <shekairui@gmail.com>
Signed-off-by: Kerry Sheh <kerry.she@amd.com>
Change-Id: I0de5e3761b51e2723d9c1dc0c39fff692e3a779d
Reviewed-on: http://review.coreboot.org/489
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
initializing VGA happens pretty much as the last thing before starting the
payload. Hence, drop VGA console support, as we did in coreboot v3.
- Drop VGA and BTEXT console support.
Console is meant to be debugging only, and by the time graphics comes up
99% of the risky stuff has already happened. Note: This patch does not remove
hardware init but only the actual output functionality.
The ragexl driver needs some extra love, but that's for another day
- factor out die() and post()
- drop some leftover RAMBASE < 0x100000 checks.
Signed-off-by: Stefan Reinauer <stepan@coreboot.org>
Acked-by: QingPei Wang<wangqingpei@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6111 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Also:
- Improve a few code comments, fix typos, etc.
- Change a few more variable types to u8/u16/u32 etc.
- Make some very long lines fit into 80chars/line.
- Drop a huge duplicated comment, use "@see" to refer to the other one.
- Reduce nesting level a bit by restructuring some code chunks.
- s/Config.lb/devicetree.cb/ in a few places.
Abuild-tested.
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@6019 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
- Fix incorrect argument names for @param entries.
- Add missing @param and @return entries, partly as TODOs.
- s/@returns/@return/, that's a typo.
- Small whitespace fixes while I'm at it.
- Drop useless @brief commands, they just clutter the comments and make them
harder to read. Doxygen has an option to always use the first sentence
of a Doxygen-comment as @brief automatically (should be on per default).
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@5955 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Acked-by: Patrick Georgi <patrick@georgi-clan.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5707 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
there is no free list.
Converting resource arrays to lists reduced the size of each device
struct from 1092 to 228 bytes.
Converting link arrays to lists reduced the size of each device struct
from 228 to 68 bytes.
Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5626 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5266 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Remove all remaining warnings from qemu.
Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4939 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
here. I think we don't ever want to drop the extra check, since it indicates
that the components involved need fixing.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4876 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
- Add static and const where possible.
- Turn some #warning entries into TODO comments.
- Add missing prototypes.
- Remove unused variables.
- Fix printf arguments or cast them as needed.
- Make sconfig output look better. Drop useless "PARSED THE TREE" output.
- Print "(this may take a while)" while building romcc. Add missing "\n".
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Myles Watosn <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4874 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
level output and make some output SPEW only.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4857 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
resources before actually validating if the resource is
a fixed one.
No harm done, except some confusion of the user (in this case: me).
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4606 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
example of one.
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@4557 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
The major change is that the K8 registers don't get touched until the end of
resource allocation.
Fam10 code could be updated the same way.
Move VGA code before resource allocation but after device enumeration.
Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4395 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Major changes:
1. Separate resource allocation into:
A. Read Resources
B. Avoid fixed resources (constrain limits)
C. Allocate resources
D. Set resources
Usage notes:
Resources which have IORESOURCE_FIXED set in the flags constrain the placement
of other resources. All fixed resources will end up outside (above or below)
the allocated resources.
Domains usually start with base = 0 and limit = 2^address_bits - 1.
I've added an IOAPIC to all platforms so that the old limit of 0xfec00000 is
still there for resources. Some platforms may want to change that, but I didn't
want to break anyone's board.
Resources are allocated in a single block for memory and another for I/O.
Currently the resource allocator doesn't support holes.
Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4394 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
doesn't make no sense. (trivial)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3977 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
- leave a hole for mmapped PCIe config space if CONFIG_PCIE_CONFIGSPACE_HOLE
is set.
- Mask moving bits to 32bit when resources are not supposed above 4G. Linux
does not like this, even though the resource is disabled.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3699 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
drove me crazy during debugging. Fix Typos. Add a warning because the
on-chipset devices are hardcoded. For newer machines, a lot more memory space
will have special meanings, and we can't hardcode them all in an ifdef desert.
(trivial)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3458 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
code is changed.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3052 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
For files derived from the Linux kernel we merely add a small header
which states the origin of the file and the copyright owners of the
modifications to the file.
We know all files from Linux are licensed under the GPLv2.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2615 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
- some ts5300 code. Let's push this upstream for now.
- fix a typo in device.c
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2211 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
1. x86_setup_mtrr take address bit.
2. generic ht, pcix, pcie beidge...
3. scan bus and reset_bus
4. ht read ctrl to decide if the ht chain
is ready
5. Intel e7520 and e7525 support
6. new ich5r support
7. intel sb 6300 support.
yhlu patch
1. split x86_setup_mtrrs to fixed and var
2. if (resource->flags & IORESOURCE_FIXED ) return; in device.c pick_largest_resource
3. in_conherent.c K8_SCAN_PCI_BUS
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1982 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Creator: Li-Ta Lo <ollie@lanl.gov>
Correct VGA support
Make the VGA support for both VGA and no VGA cases.
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1960 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Creator: Li-Ta Lo <ollie@lanl.gov>
emulator update
x96emu update from Paulo
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1954 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Creator: Li-Ta Lo <ollie@lanl.gov>
emulator update
Correction to the reduce emulator from Paulo
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1952 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Kyösti Mälkki