Some firmware will access memory in ACPI NVS region via APEI. That
is, instructions in APEI ERST/EINJ table will read/write ACPI NVS
region. The original resource conflict checking in APEI code will
check memory/ioport accessed by APEI via general resource management
mech. But ACPI NVS region is marked as busy already, so that the
false resource conflict will prevent APEI ERST/EINJ to work.
To fix this, this patch excludes ACPI NVS regions when APEI components
request resources. So that they will not conflict with ACPI NVS
regions.
Reported-and-tested-by: Pavel Ivanov <paivanof@gmail.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Some firmware will access memory in ACPI NVS region via APEI. That
is, instructions in APEI ERST/EINJ table will read/write ACPI NVS
region. The original resource conflict checking in APEI code will
check memory/ioport accessed by APEI via general resource management
mechanism. But ACPI NVS region is marked as busy already, so that the
false resource conflict will prevent APEI ERST/EINJ to work.
To fix this, this patch record ACPI NVS regions, so that we can avoid
request resources for memory region inside it.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Current fix for resource conflict is to remove the address region <param1 &
param2, ~param2+1> from trigger resource, which is highly relies on valid user
input. This patch is trying to avoid such potential issues by fetching the
exact address region from trigger action table entry.
Signed-off-by: Xiao, Hui <hui.xiao@linux.intel.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Some APEI firmware implementation will access injected address
specified in param1 to trigger the error when injecting memory error.
This will cause resource conflict with RAM.
On one of our testing machine, if injecting at memory address
0x10000000, the following error will be reported in dmesg:
APEI: Can not request iomem region <0000000010000000-0000000010000008> for GARs.
This patch removes the injecting memory address range from trigger
table resources to avoid conflict.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
On one of our testing machine, the following EINJ command lines:
# echo 0x10000000 > param1
# echo 0xfffffffffffff000 > param2
# echo 0x8 > error_type
# echo 1 > error_inject
Will get:
echo: write error: Input/output error
The EIO comes from:
rc = apei_exec_pre_map_gars(&trigger_ctx);
The root cause is as follow. Normally, ACPI atomic IO support is used
to access IO memory. But in EINJ of that machine, it is used to
access RAM to trigger the injected error. And the ioremap() called by
apei_exec_pre_map_gars() can not map the RAM.
This patch add RAM mapping support to ACPI atomic IO support to
satisfy EINJ requirement.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Because printk is not safe inside NMI handler, the recoverable error
records received in NMI handler will be queued to be printked in a
delayed IRQ context via irq_work. If a fatal error occurs after the
recoverable error and before the irq_work processed, we lost a error
report.
To solve the issue, the queued error records are printked in NMI
handler if system will go panic.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
In most cases, printk only guarantees messages from different printk
calling will not be interleaved between each other. But, one APEI
GHES hardware error report will involve multiple printk calling,
normally each for one line. So it is possible that the hardware error
report comes from different generic hardware error source will be
interleaved.
In this patch, a sequence number is prefixed to each line of error
report. So that, even if they are interleaved, they still can be
distinguished by the prefixed sequence number.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Because APEI tables are optional, these message may confuse users, for
example,
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/599715
Reported-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Use the normal %pR-like format for MMIO and I/O port ranges.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
aer_recover_queue() is called when recoverable PCIe AER errors are
notified by firmware to do the recovery work.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
There is no 64bit read/write support in ACPI atomicio because
readq/writeq is used to implement 64bit read/write, but readq/writeq
is not available on i386. This patch implement 64bit read/write
support in atomicio via two readl/writel.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Version 20120111.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Update all copyrights to 2012.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Allows drivers to determine if any memory or I/O addresses
will conflict with addresses used by ACPI operation regions.
Introduces a new interface, acpi_check_address_range.
http://marc.info/?t=132251388700002&r=1&w=2
Reported-and-tested-by: Luca Tettamanti <kronos.it@gmail.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
FADT is now larger than 256 bytes, so all FADT offsets must be
changed from 8 bits to 16 bits.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This version contains full support for the ACPI 5.0 specification.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Make the various files in alphabetical order to simplify
addition of new files.
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
_AEI contains a resource template, this change adds support for
the walk resources function.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This interface converts an AML buffer to an internal ACPI_RESOURCE.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Executes _AEI and formats the result, similar to acpi_get_current_resources, etc.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
FixedDMA, GPIO descriptors, SerialBus descriptors
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Support within the interpreter and operation region dispatch.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Adds acpi_acquire_mutex, acpi_release_mutex external interfaces.
New file, utxfmutex.c.
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Adds new file, actbl3.h
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
If HW-reduced flag is set in the FADT, do not attempt to access
or initialize any ACPI hardware, including SCI and global lock.
No FACS will be present.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Ignore an invalid space ID during a table load. Instead, detect it
if a control method attempts access - then abort the method.
http://www.acpica.org/bugzilla/show_bug.cgi?id=925
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Supplement the exception code with an actual message.
Found during ACPICA debugging.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Found during ACPICA debugging.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Allow referenced objects to be in a different scope.
http://www.acpica.org/bugzilla/show_bug.cgi?id=937http://marc.info/?l=linux-acpi&m=131636632718222&w=2
ACPI Error: [RAMB] Namespace lookup failure, AE_NOT_FOUND (20110112/psargs-359)
ACPI Exception: AE_NOT_FOUND, Could not execute arguments for [RAMW] (Region) (20110112/nsinit-349)
Scope (_SB)
{
Name (RAMB, 0xDF5A1018)
OperationRegion (\RAMW, SystemMemory, RAMB, 0x00010000)
}
For above ASL code, we need to save scope node(\_SB) to lookup
the argument node(\_SB.RAMB).
Reported-by: Jim Green <student.northwestern@gmail.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Fixes several issues with GCC 4.6 related to the new checks for
unused variables.
http://www.acpica.org/bugzilla/show_bug.cgi?id=935
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
The call to acpi_os_validate_address in acpi_ds_get_region_arguments was
removed by mistake in commit 9ad19ac(ACPICA: Split large dsopcode and
dsload.c files).
Put it back.
Cc: stable@vger.kernel.org # 2.6.38+
Reported-and-bisected-by: Luca Tettamanti <kronos.it@gmail.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This patch adds separate accounting of UV2 message "strong
nack's" in the BAU statistics.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Link: http://lkml.kernel.org/r/20120116212238.GF5767@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This patch moves the ack of the BAU interrupt to the beginning
of the interrupt handler so that there is less possibility of a
lost interrupt and slower response to a shootdown message.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Link: http://lkml.kernel.org/r/20120116212146.GE5767@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This patch removes an unnecessary test for a
no-destination-resources-available condition that looks like a
destination timeout in UV1, but is separately distinguishable in
UV2.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Link: http://lkml.kernel.org/r/20120116212050.GD5767@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This patch implements a workaround for a UV2 hardware bug.
The bug is a non-atomic update of a memory-mapped register. When
hardware message delivery and software message acknowledge occur
simultaneously the pending message acknowledge for the arriving
message may be lost. This causes the sender's message status to
stay busy.
Part of the workaround is to not acknowledge a completed message
until it is verified that no other message is actually using the
resource that is mistakenly recorded in the completed message.
Part of the workaround is to test for long elapsed time in such
a busy condition, then handle it by using a spare sending
descriptor. The stay-busy condition is eventually timed out by
hardware, and then the original sending descriptor can be
re-used. Most of that logic change is in keeping track of the
current descriptor and the state of the spares.
The occurrences of the workaround are added to the BAU
statistics.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Link: http://lkml.kernel.org/r/20120116211947.GC5767@sgi.com
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Move the call to enable_timeouts() forward so that
BAU_MISC_CONTROL is initialized before using it in
calculate_destination_timeout().
Fix the calculation of a BAU destination timeout
for UV2 (in calculate_destination_timeout()).
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Link: http://lkml.kernel.org/r/20120116211848.GB5767@sgi.com
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Update the use of the Broadcast Assist Unit on SGI Altix UV2 to
the use of native UV2 mode on new hardware (not the legacy mode).
UV2 native mode has a different format for a broadcast message.
We also need quick differentiaton between UV1 and UV2.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Link: http://lkml.kernel.org/r/20120116211750.GA5767@sgi.com
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
* 'samsung-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Invert VCLK polarity for framebuffer on ORIGEN
ARM: S3C64XX: Fix interrupt configuration for PCA935x on Cragganmore
ARM: S3C64XX: Fix the memory mapped GPIOs on Cragganmore
ARM: S3C64XX: Remove hsmmc1 from Cragganmore
ARM: S3C64XX: Remove unconditional power domain disables
ARM: SAMSUNG: Declare struct platform_device in plat/s3c64xx-spi.h
ARM: SAMSUNG: dma-ops.h needs mach/dma.h
ARM: SAMSUNG: Guard against multiple inclusion of plat/dma.h
* 'x86/rdrand' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
random: Adjust the number of loops when initializing
random: Use arch-specific RNG to initialize the entropy store
* 'x86-syscall-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Move <asm/asm-offsets.h> from trace_syscalls.c to asm/syscall.h
x86, um: Fix typo in 32-bit system call modifications
um: Use $(srctree) not $(KBUILD_SRC)
x86, um: Mark system call tables readonly
x86, um: Use the same style generated syscall tables as native
um: Generate headers before generating user-offsets.s
um: Run host archheaders, allow use of host generated headers
kbuild, headers.sh: Don't make archheaders explicitly
x86, syscall: Allow syscall offset to be symbolic
x86, syscall: Re-fix typo in comment
x86: Simplify syscallhdr.sh
x86: Generate system call tables and unistd_*.h from tables
checksyscalls: Use arch/x86/syscalls/syscall_32.tbl as source
x86: Machine-readable syscall tables and scripts to process them
trace: Include <asm/asm-offsets.h> in trace_syscalls.c
x86-64, ia32: Move compat_ni_syscall into C and its own file
x86-64, syscall: Adjust comment spacing and remove typo
kbuild: Add support for an "archheaders" target
kbuild: Add support for installing generated asm headers
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Add INGORE_ERRORS to ignore warnings in boot up
ktest: Still do reboot even for REBOOT_TYPE = script
ktest: Fix compare script to test if options are not documented
ktest: Detect typos in option names
ktest: Have all values be set by defaults
ktest: Change initialization of defaults hash to perl format
ktest: Add options SWITCH_TO_GOOD and SWITCH_TO_TEST
ktest: Allow overriding bisect test results
ktest: Evaluate options before processing them
ktest: Evaluate $KERNEL_VERSION in both install and post install
ktest: Only ask options needed for install
ktest: When creating a new config, ask for BUILD_OPTIONS
ktest: Do not ask for some options if the only test is build
ktest: Ask for type of test when creating a new config
ktest: Allow bisect test to restart where it left off
ktest: When creating new config, allow the use of ${THIS_DIR}
ktest: Add default for ssh-user, build-target and target-image
ktest: Allow success logs to be stored
ktest: Save test output
Huang Ying