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arch: Remove Itanium (IA-64) architecture 

The Itanium architecture is obsolete, and an informal survey [0] reveals
that any residual use of Itanium hardware in production is mostly HP-UX
or OpenVMS based. The use of Linux on Itanium appears to be limited to
enthusiasts that occasionally boot a fresh Linux kernel to see whether
things are still working as intended, and perhaps to churn out some
distro packages that are rarely used in practice.

None of the original companies behind Itanium still produce or support
any hardware or software for the architecture, and it is listed as
'Orphaned' in the MAINTAINERS file, as apparently, none of the engineers
that contributed on behalf of those companies (nor anyone else, for that
matter) have been willing to support or maintain the architecture
upstream or even be responsible for applying the odd fix. The Intel
firmware team removed all IA-64 support from the Tianocore/EDK2
reference implementation of EFI in 2018. (Itanium is the original
architecture for which EFI was developed, and the way Linux supports it
deviates significantly from other architectures.) Some distros, such as
Debian and Gentoo, still maintain [unofficial] ia64 ports, but many have
dropped support years ago.

While the argument is being made [1] that there is a 'for the common
good' angle to being able to build and run existing projects such as the
Grid Community Toolkit [2] on Itanium for interoperability testing, the
fact remains that none of those projects are known to be deployed on
Linux/ia64, and very few people actually have access to such a system in
the first place. Even if there were ways imaginable in which Linux/ia64
could be put to good use today, what matters is whether anyone is
actually doing that, and this does not appear to be the case.

There are no emulators widely available, and so boot testing Itanium is
generally infeasible for ordinary contributors. GCC still supports IA-64
but its compile farm [3] no longer has any IA-64 machines. GLIBC would
like to get rid of IA-64 [4] too because it would permit some overdue
code cleanups. In summary, the benefits to the ecosystem of having IA-64
be part of it are mostly theoretical, whereas the maintenance overhead
of keeping it supported is real.

So let's rip off the band aid, and remove the IA-64 arch code entirely.
This follows the timeline proposed by the Debian/ia64 maintainer [5],
which removes support in a controlled manner, leaving IA-64 in a known
good state in the most recent LTS release. Other projects will follow
once the kernel support is removed.

[0] https://lore.kernel.org/all/CAMj1kXFCMh_578jniKpUtx_j8ByHnt=s7S+yQ+vGbKt9ud7+kQ@mail.gmail.com/
[1] https://lore.kernel.org/all/0075883c-7c51-00f5-2c2d-5119c1820410@web.de/
[2] https://gridcf.org/gct-docs/latest/index.html
[3] https://cfarm.tetaneutral.net/machines/list/
[4] https://lore.kernel.org/all/87bkiilpc4.fsf@mid.deneb.enyo.de/
[5] https://lore.kernel.org/all/ff58a3e76e5102c94bb5946d99187b358def688a.camel@physik.fu-berlin.de/Acked-by: default avatarTony Luck <tony.luck@intel.com>
Signed-off-by: default avatarArd Biesheuvel <ardb@kernel.org>
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Documentation/arch/ia64/aliasing.rst deleted 100644 → 0
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==================================
Memory Attribute Aliasing on IA-64
==================================
Bjorn Helgaas <bjorn.helgaas@hp.com>
May 4, 2006
Memory Attributes
=================
Itanium supports several attributes for virtual memory references.
The attribute is part of the virtual translation, i.e., it is
contained in the TLB entry. The ones of most interest to the Linux
kernel are:
== ======================
WB Write-back (cacheable)
UC Uncacheable
WC Write-coalescing
== ======================
System memory typically uses the WB attribute. The UC attribute is
used for memory-mapped I/O devices. The WC attribute is uncacheable
like UC is, but writes may be delayed and combined to increase
performance for things like frame buffers.
The Itanium architecture requires that we avoid accessing the same
page with both a cacheable mapping and an uncacheable mapping[1].
The design of the chipset determines which attributes are supported
on which regions of the address space. For example, some chipsets
support either WB or UC access to main memory, while others support
only WB access.
Memory Map
==========
Platform firmware describes the physical memory map and the
supported attributes for each region. At boot-time, the kernel uses
the EFI GetMemoryMap() interface. ACPI can also describe memory
devices and the attributes they support, but Linux/ia64 currently
doesn't use this information.
The kernel uses the efi_memmap table returned from GetMemoryMap() to
learn the attributes supported by each region of physical address
space. Unfortunately, this table does not completely describe the
address space because some machines omit some or all of the MMIO
regions from the map.
The kernel maintains another table, kern_memmap, which describes the
memory Linux is actually using and the attribute for each region.
This contains only system memory; it does not contain MMIO space.
The kern_memmap table typically contains only a subset of the system
memory described by the efi_memmap. Linux/ia64 can't use all memory
in the system because of constraints imposed by the identity mapping
scheme.
The efi_memmap table is preserved unmodified because the original
boot-time information is required for kexec.
Kernel Identity Mappings
========================
Linux/ia64 identity mappings are done with large pages, currently
either 16MB or 64MB, referred to as "granules." Cacheable mappings
are speculative[2], so the processor can read any location in the
page at any time, independent of the programmer's intentions. This
means that to avoid attribute aliasing, Linux can create a cacheable
identity mapping only when the entire granule supports cacheable
access.
Therefore, kern_memmap contains only full granule-sized regions that
can referenced safely by an identity mapping.
Uncacheable mappings are not speculative, so the processor will
generate UC accesses only to locations explicitly referenced by
software. This allows UC identity mappings to cover granules that
are only partially populated, or populated with a combination of UC
and WB regions.
User Mappings
=============
User mappings are typically done with 16K or 64K pages. The smaller
page size allows more flexibility because only 16K or 64K has to be
homogeneous with respect to memory attributes.
Potential Attribute Aliasing Cases
==================================
There are several ways the kernel creates new mappings:
mmap of /dev/mem
----------------
This uses remap_pfn_range(), which creates user mappings. These
mappings may be either WB or UC. If the region being mapped
happens to be in kern_memmap, meaning that it may also be mapped
by a kernel identity mapping, the user mapping must use the same
attribute as the kernel mapping.
If the region is not in kern_memmap, the user mapping should use
an attribute reported as being supported in the EFI memory map.
Since the EFI memory map does not describe MMIO on some
machines, this should use an uncacheable mapping as a fallback.
mmap of /sys/class/pci_bus/.../legacy_mem
-----------------------------------------
This is very similar to mmap of /dev/mem, except that legacy_mem
only allows mmap of the one megabyte "legacy MMIO" area for a
specific PCI bus. Typically this is the first megabyte of
physical address space, but it may be different on machines with
several VGA devices.
"X" uses this to access VGA frame buffers. Using legacy_mem
rather than /dev/mem allows multiple instances of X to talk to
different VGA cards.
The /dev/mem mmap constraints apply.
mmap of /proc/bus/pci/.../??.?
------------------------------
This is an MMIO mmap of PCI functions, which additionally may or
may not be requested as using the WC attribute.
If WC is requested, and the region in kern_memmap is either WC
or UC, and the EFI memory map designates the region as WC, then
the WC mapping is allowed.
Otherwise, the user mapping must use the same attribute as the
kernel mapping.
read/write of /dev/mem
----------------------
This uses copy_from_user(), which implicitly uses a kernel
identity mapping. This is obviously safe for things in
kern_memmap.
There may be corner cases of things that are not in kern_memmap,
but could be accessed this way. For example, registers in MMIO
space are not in kern_memmap, but could be accessed with a UC
mapping. This would not cause attribute aliasing. But
registers typically can be accessed only with four-byte or
eight-byte accesses, and the copy_from_user() path doesn't allow
any control over the access size, so this would be dangerous.
ioremap()
---------
This returns a mapping for use inside the kernel.
If the region is in kern_memmap, we should use the attribute
specified there.
If the EFI memory map reports that the entire granule supports
WB, we should use that (granules that are partially reserved
or occupied by firmware do not appear in kern_memmap).
If the granule contains non-WB memory, but we can cover the
region safely with kernel page table mappings, we can use
ioremap_page_range() as most other architectures do.
Failing all of the above, we have to fall back to a UC mapping.
Past Problem Cases
==================
mmap of various MMIO regions from /dev/mem by "X" on Intel platforms
--------------------------------------------------------------------
The EFI memory map may not report these MMIO regions.
These must be allowed so that X will work. This means that
when the EFI memory map is incomplete, every /dev/mem mmap must
succeed. It may create either WB or UC user mappings, depending
on whether the region is in kern_memmap or the EFI memory map.
mmap of 0x0-0x9FFFF /dev/mem by "hwinfo" on HP sx1000 with VGA enabled
----------------------------------------------------------------------
The EFI memory map reports the following attributes:
=============== ======= ==================
0x00000-0x9FFFF WB only
0xA0000-0xBFFFF UC only (VGA frame buffer)
0xC0000-0xFFFFF WB only
=============== ======= ==================
This mmap is done with user pages, not kernel identity mappings,
so it is safe to use WB mappings.
The kernel VGA driver may ioremap the VGA frame buffer at 0xA0000,
which uses a granule-sized UC mapping. This granule will cover some
WB-only memory, but since UC is non-speculative, the processor will
never generate an uncacheable reference to the WB-only areas unless
the driver explicitly touches them.
mmap of 0x0-0xFFFFF legacy_mem by "X"
-------------------------------------
If the EFI memory map reports that the entire range supports the
same attributes, we can allow the mmap (and we will prefer WB if
supported, as is the case with HP sx[12]000 machines with VGA
disabled).
If EFI reports the range as partly WB and partly UC (as on sx[12]000
machines with VGA enabled), we must fail the mmap because there's no
safe attribute to use.
If EFI reports some of the range but not all (as on Intel firmware
that doesn't report the VGA frame buffer at all), we should fail the
mmap and force the user to map just the specific region of interest.
mmap of 0xA0000-0xBFFFF legacy_mem by "X" on HP sx1000 with VGA disabled
------------------------------------------------------------------------
The EFI memory map reports the following attributes::
0x00000-0xFFFFF WB only (no VGA MMIO hole)
This is a special case of the previous case, and the mmap should
fail for the same reason as above.
read of /sys/devices/.../rom
----------------------------
For VGA devices, this may cause an ioremap() of 0xC0000. This
used to be done with a UC mapping, because the VGA frame buffer
at 0xA0000 prevents use of a WB granule. The UC mapping causes
an MCA on HP sx[12]000 chipsets.
We should use WB page table mappings to avoid covering the VGA
frame buffer.
Notes
=====
[1] SDM rev 2.2, vol 2, sec 4.4.1.
[2] SDM rev 2.2, vol 2, sec 4.4.6.
Documentation/arch/ia64/efirtc.rst deleted 100644 → 0
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==========================
EFI Real Time Clock driver
==========================
S. Eranian <eranian@hpl.hp.com>
March 2000
1. Introduction
===============
This document describes the efirtc.c driver has provided for
the IA-64 platform.
The purpose of this driver is to supply an API for kernel and user applications
to get access to the Time Service offered by EFI version 0.92.
EFI provides 4 calls one can make once the OS is booted: GetTime(),
SetTime(), GetWakeupTime(), SetWakeupTime() which are all supported by this
driver. We describe those calls as well the design of the driver in the
following sections.
2. Design Decisions
===================
The original ideas was to provide a very simple driver to get access to,
at first, the time of day service. This is required in order to access, in a
portable way, the CMOS clock. A program like /sbin/hwclock uses such a clock
to initialize the system view of the time during boot.
Because we wanted to minimize the impact on existing user-level apps using
the CMOS clock, we decided to expose an API that was very similar to the one
used today with the legacy RTC driver (driver/char/rtc.c). However, because
EFI provides a simpler services, not all ioctl() are available. Also
new ioctl()s have been introduced for things that EFI provides but not the
legacy.
EFI uses a slightly different way of representing the time, noticeably
the reference date is different. Year is the using the full 4-digit format.
The Epoch is January 1st 1998. For backward compatibility reasons we don't
expose this new way of representing time. Instead we use something very
similar to the struct tm, i.e. struct rtc_time, as used by hwclock.
One of the reasons for doing it this way is to allow for EFI to still evolve
without necessarily impacting any of the user applications. The decoupling
enables flexibility and permits writing wrapper code is ncase things change.
The driver exposes two interfaces, one via the device file and a set of
ioctl()s. The other is read-only via the /proc filesystem.
As of today we don't offer a /proc/sys interface.
To allow for a uniform interface between the legacy RTC and EFI time service,
we have created the include/linux/rtc.h header file to contain only the
"public" API of the two drivers. The specifics of the legacy RTC are still
in include/linux/mc146818rtc.h.
3. Time of day service
======================
The part of the driver gives access to the time of day service of EFI.
Two ioctl()s, compatible with the legacy RTC calls:
Read the CMOS clock::
ioctl(d, RTC_RD_TIME, &rtc);
Write the CMOS clock::
ioctl(d, RTC_SET_TIME, &rtc);
The rtc is a pointer to a data structure defined in rtc.h which is close
to a struct tm::
struct rtc_time {
int tm_sec;
int tm_min;
int tm_hour;
int tm_mday;
int tm_mon;
int tm_year;
int tm_wday;
int tm_yday;
int tm_isdst;
};
The driver takes care of converting back an forth between the EFI time and
this format.
Those two ioctl()s can be exercised with the hwclock command:
For reading::
# /sbin/hwclock --show
Mon Mar 6 15:32:32 2000 -0.910248 seconds
For setting::
# /sbin/hwclock --systohc
Root privileges are required to be able to set the time of day.
4. Wakeup Alarm service
=======================
EFI provides an API by which one can program when a machine should wakeup,
i.e. reboot. This is very different from the alarm provided by the legacy
RTC which is some kind of interval timer alarm. For this reason we don't use
the same ioctl()s to get access to the service. Instead we have
introduced 2 news ioctl()s to the interface of an RTC.
We have added 2 new ioctl()s that are specific to the EFI driver:
Read the current state of the alarm::
ioctl(d, RTC_WKALM_RD, &wkt)
Set the alarm or change its status::
ioctl(d, RTC_WKALM_SET, &wkt)
The wkt structure encapsulates a struct rtc_time + 2 extra fields to get
status information::
struct rtc_wkalrm {
unsigned char enabled; /* =1 if alarm is enabled */
unsigned char pending; /* =1 if alarm is pending */
struct rtc_time time;
}
As of today, none of the existing user-level apps supports this feature.
However writing such a program should be hard by simply using those two
ioctl().
Root privileges are required to be able to set the alarm.
5. References
=============
Checkout the following Web site for more information on EFI:
http://developer.intel.com/technology/efi/
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.. SPDX-License-Identifier: GPL-2.0
.. kernel-feat:: $srctree/Documentation/features ia64
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===========================================
Linux kernel release for the IA-64 Platform
===========================================
These are the release notes for Linux since version 2.4 for IA-64
platform. This document provides information specific to IA-64
ONLY, to get additional information about the Linux kernel also
read the original Linux README provided with the kernel.
Installing the Kernel
=====================
- IA-64 kernel installation is the same as the other platforms, see
original README for details.
Software Requirements
=====================
Compiling and running this kernel requires an IA-64 compliant GCC
compiler. And various software packages also compiled with an
IA-64 compliant GCC compiler.
Configuring the Kernel
======================
Configuration is the same, see original README for details.
Compiling the Kernel:
- Compiling this kernel doesn't differ from other platform so read
the original README for details BUT make sure you have an IA-64
compliant GCC compiler.
IA-64 Specifics
===============
- General issues:
* Hardly any performance tuning has been done. Obvious targets
include the library routines (IP checksum, etc.). Less
obvious targets include making sure we don't flush the TLB
needlessly, etc.
* SMP locks cleanup/optimization
* IA32 support. Currently experimental. It mostly works.
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.. SPDX-License-Identifier: GPL-2.0
==================
IA-64 Architecture
==================
.. toctree::
:maxdepth: 1
ia64
aliasing
efirtc
err_inject
fsys
irq-redir
mca
serial
features
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==============================
IRQ affinity on IA64 platforms
==============================
07.01.2002, Erich Focht <efocht@ess.nec.de>
By writing to /proc/irq/IRQ#/smp_affinity the interrupt routing can be
controlled. The behavior on IA64 platforms is slightly different from
that described in Documentation/core-api/irq/irq-affinity.rst for i386 systems.
Because of the usage of SAPIC mode and physical destination mode the
IRQ target is one particular CPU and cannot be a mask of several
CPUs. Only the first non-zero bit is taken into account.
Usage examples
==============
The target CPU has to be specified as a hexadecimal CPU mask. The
first non-zero bit is the selected CPU. This format has been kept for
compatibility reasons with i386.
Set the delivery mode of interrupt 41 to fixed and route the
interrupts to CPU #3 (logical CPU number) (2^3=0x08)::
echo "8" >/proc/irq/41/smp_affinity
Set the default route for IRQ number 41 to CPU 6 in lowest priority
delivery mode (redirectable)::
echo "r 40" >/proc/irq/41/smp_affinity
The output of the command::
cat /proc/irq/IRQ#/smp_affinity
gives the target CPU mask for the specified interrupt vector. If the CPU
mask is preceded by the character "r", the interrupt is redirectable
(i.e. lowest priority mode routing is used), otherwise its route is
fixed.
Initialization and default behavior
===================================
If the platform features IRQ redirection (info provided by SAL) all
IO-SAPIC interrupts are initialized with CPU#0 as their default target
and the routing is the so called "lowest priority mode" (actually
fixed SAPIC mode with hint). The XTP chipset registers are used as hints
for the IRQ routing. Currently in Linux XTP registers can have three
values:
- minimal for an idle task,
- normal if any other task runs,
- maximal if the CPU is going to be switched off.
The IRQ is routed to the CPU with lowest XTP register value, the
search begins at the default CPU. Therefore most of the interrupts
will be handled by CPU #0.
If the platform doesn't feature interrupt redirection IOSAPIC fixed
routing is used. The target CPUs are distributed in a round robin
manner. IRQs will be routed only to the selected target CPUs. Check
with::
cat /proc/interrupts
Comments
========
On large (multi-node) systems it is recommended to route the IRQs to
the node to which the corresponding device is connected.
For systems like the NEC AzusA we get IRQ node-affinity for free. This
is because usually the chipsets on each node redirect the interrupts
only to their own CPUs (as they cannot see the XTP registers on the
other nodes).
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=============================================================
An ad-hoc collection of notes on IA64 MCA and INIT processing
=============================================================
Feel free to update it with notes about any area that is not clear.
---
MCA/INIT are completely asynchronous. They can occur at any time, when
the OS is in any state. Including when one of the cpus is already
holding a spinlock. Trying to get any lock from MCA/INIT state is
asking for deadlock. Also the state of structures that are protected
by locks is indeterminate, including linked lists.
---
The complicated ia64 MCA process. All of this is mandated by Intel's
specification for ia64 SAL, error recovery and unwind, it is not as
if we have a choice here.
* MCA occurs on one cpu, usually due to a double bit memory error.
This is the monarch cpu.
* SAL sends an MCA rendezvous interrupt (which is a normal interrupt)
to all the other cpus, the slaves.
* Slave cpus that receive the MCA interrupt call down into SAL, they
end up spinning disabled while the MCA is being serviced.
* If any slave cpu was already spinning disabled when the MCA occurred
then it cannot service the MCA interrupt. SAL waits ~20 seconds then
sends an unmaskable INIT event to the slave cpus that have not
already rendezvoused.
* Because MCA/INIT can be delivered at any time, including when the cpu
is down in PAL in physical mode, the registers at the time of the
event are _completely_ undefined. In particular the MCA/INIT
handlers cannot rely on the thread pointer, PAL physical mode can
(and does) modify TP. It is allowed to do that as long as it resets
TP on return. However MCA/INIT events expose us to these PAL
internal TP changes. Hence curr_task().
* If an MCA/INIT event occurs while the kernel was running (not user
space) and the kernel has called PAL then the MCA/INIT handler cannot
assume that the kernel stack is in a fit state to be used. Mainly
because PAL may or may not maintain the stack pointer internally.
Because the MCA/INIT handlers cannot trust the kernel stack, they
have to use their own, per-cpu stacks. The MCA/INIT stacks are
preformatted with just enough task state to let the relevant handlers
do their job.
* Unlike most other architectures, the ia64 struct task is embedded in
the kernel stack[1]. So switching to a new kernel stack means that
we switch to a new task as well. Because various bits of the kernel
assume that current points into the struct task, switching to a new
stack also means a new value for current.
* Once all slaves have rendezvoused and are spinning disabled, the
monarch is entered. The monarch now tries to diagnose the problem
and decide if it can recover or not.
* Part of the monarch's job is to look at the state of all the other
tasks. The only way to do that on ia64 is to call the unwinder,
as mandated by Intel.
* The starting point for the unwind depends on whether a task is
running or not. That is, whether it is on a cpu or is blocked. The
monarch has to determine whether or not a task is on a cpu before it
knows how to start unwinding it. The tasks that received an MCA or
INIT event are no longer running, they have been converted to blocked
tasks. But (and its a big but), the cpus that received the MCA
rendezvous interrupt are still running on their normal kernel stacks!
* To distinguish between these two cases, the monarch must know which
tasks are on a cpu and which are not. Hence each slave cpu that
switches to an MCA/INIT stack, registers its new stack using
set_curr_task(), so the monarch can tell that the _original_ task is
no longer running on that cpu. That gives us a decent chance of
getting a valid backtrace of the _original_ task.
* MCA/INIT can be nested, to a depth of 2 on any cpu. In the case of a
nested error, we want diagnostics on the MCA/INIT handler that
failed, not on the task that was originally running. Again this
requires set_curr_task() so the MCA/INIT handlers can register their
own stack as running on that cpu. Then a recursive error gets a
trace of the failing handler's "task".
[1]
My (Keith Owens) original design called for ia64 to separate its
struct task and the kernel stacks. Then the MCA/INIT data would be
chained stacks like i386 interrupt stacks. But that required
radical surgery on the rest of ia64, plus extra hard wired TLB
entries with its associated performance degradation. David
Mosberger vetoed that approach. Which meant that separate kernel
stacks meant separate "tasks" for the MCA/INIT handlers.
---
INIT is less complicated than MCA. Pressing the nmi button or using
the equivalent command on the management console sends INIT to all
cpus. SAL picks one of the cpus as the monarch and the rest are
slaves. All the OS INIT handlers are entered at approximately the same
time. The OS monarch prints the state of all tasks and returns, after
which the slaves return and the system resumes.
At least that is what is supposed to happen. Alas there are broken
versions of SAL out there. Some drive all the cpus as monarchs. Some
drive them all as slaves. Some drive one cpu as monarch, wait for that
cpu to return from the OS then drive the rest as slaves. Some versions
of SAL cannot even cope with returning from the OS, they spin inside
SAL on resume. The OS INIT code has workarounds for some of these
broken SAL symptoms, but some simply cannot be fixed from the OS side.
---
The scheduler hooks used by ia64 (curr_task, set_curr_task) are layer
violations. Unfortunately MCA/INIT start off as massive layer
violations (can occur at _any_ time) and they build from there.
At least ia64 makes an attempt at recovering from hardware errors, but
it is a difficult problem because of the asynchronous nature of these
errors. When processing an unmaskable interrupt we sometimes need
special code to cope with our inability to take any locks.
---
How is ia64 MCA/INIT different from x86 NMI?
* x86 NMI typically gets delivered to one cpu. MCA/INIT gets sent to
all cpus.
* x86 NMI cannot be nested. MCA/INIT can be nested, to a depth of 2
per cpu.
* x86 has a separate struct task which points to one of multiple kernel
stacks. ia64 has the struct task embedded in the single kernel
stack, so switching stack means switching task.
* x86 does not call the BIOS so the NMI handler does not have to worry
about any registers having changed. MCA/INIT can occur while the cpu
is in PAL in physical mode, with undefined registers and an undefined
kernel stack.
* i386 backtrace is not very sensitive to whether a process is running
or not. ia64 unwind is very, very sensitive to whether a process is
running or not.
---
What happens when MCA/INIT is delivered what a cpu is running user
space code?
The user mode registers are stored in the RSE area of the MCA/INIT on
entry to the OS and are restored from there on return to SAL, so user
mode registers are preserved across a recoverable MCA/INIT. Since the
OS has no idea what unwind data is available for the user space stack,
MCA/INIT never tries to backtrace user space. Which means that the OS
does not bother making the user space process look like a blocked task,
i.e. the OS does not copy pt_regs and switch_stack to the user space
stack. Also the OS has no idea how big the user space RSE and memory
stacks are, which makes it too risky to copy the saved state to a user
mode stack.
---
How do we get a backtrace on the tasks that were running when MCA/INIT
was delivered?
mca.c:::ia64_mca_modify_original_stack(). That identifies and
verifies the original kernel stack, copies the dirty registers from
the MCA/INIT stack's RSE to the original stack's RSE, copies the
skeleton struct pt_regs and switch_stack to the original stack, fills
in the skeleton structures from the PAL minstate area and updates the
original stack's thread.ksp. That makes the original stack look
exactly like any other blocked task, i.e. it now appears to be
sleeping. To get a backtrace, just start with thread.ksp for the
original task and unwind like any other sleeping task.
---
How do we identify the tasks that were running when MCA/INIT was
delivered?
If the previous task has been verified and converted to a blocked
state, then sos->prev_task on the MCA/INIT stack is updated to point to
the previous task. You can look at that field in dumps or debuggers.
To help distinguish between the handler and the original tasks,
handlers have _TIF_MCA_INIT set in thread_info.flags.
The sos data is always in the MCA/INIT handler stack, at offset
MCA_SOS_OFFSET. You can get that value from mca_asm.h or calculate it
as KERNEL_STACK_SIZE - sizeof(struct pt_regs) - sizeof(struct
ia64_sal_os_state), with 16 byte alignment for all structures.
Also the comm field of the MCA/INIT task is modified to include the pid
of the original task, for humans to use. For example, a comm field of
'MCA 12159' means that pid 12159 was running when the MCA was
delivered.
Documentation/arch/ia64/serial.rst deleted 100644 → 0
View file @ a0334bf7
==============
Serial Devices
==============
Serial Device Naming
====================
As of 2.6.10, serial devices on ia64 are named based on the
order of ACPI and PCI enumeration. The first device in the
ACPI namespace (if any) becomes /dev/ttyS0, the second becomes
/dev/ttyS1, etc., and PCI devices are named sequentially
starting after the ACPI devices.
Prior to 2.6.10, there were confusing exceptions to this:
- Firmware on some machines (mostly from HP) provides an HCDP
table[1] that tells the kernel about devices that can be used
as a serial console. If the user specified "console=ttyS0"
or the EFI ConOut path contained only UART devices, the
kernel registered the device described by the HCDP as
/dev/ttyS0.
- If there was no HCDP, we assumed there were UARTs at the
legacy COM port addresses (I/O ports 0x3f8 and 0x2f8), so
the kernel registered those as /dev/ttyS0 and /dev/ttyS1.
Any additional ACPI or PCI devices were registered sequentially
after /dev/ttyS0 as they were discovered.
With an HCDP, device names changed depending on EFI configuration
and "console=" arguments. Without an HCDP, device names didn't
change, but we registered devices that might not really exist.
For example, an HP rx1600 with a single built-in serial port
(described in the ACPI namespace) plus an MP[2] (a PCI device) has
these ports:
========== ========== ============ ============ =======
Type MMIO pre-2.6.10 pre-2.6.10 2.6.10+
address
(EFI console (EFI console
on builtin) on MP port)
========== ========== ============ ============ =======
builtin 0xff5e0000 ttyS0 ttyS1 ttyS0
MP UPS 0xf8031000 ttyS1 ttyS2 ttyS1
MP Console 0xf8030000 ttyS2 ttyS0 ttyS2
MP 2 0xf8030010 ttyS3 ttyS3 ttyS3
MP 3 0xf8030038 ttyS4 ttyS4 ttyS4
========== ========== ============ ============ =======
Console Selection
=================
EFI knows what your console devices are, but it doesn't tell the
kernel quite enough to actually locate them. The DIG64 HCDP
table[1] does tell the kernel where potential serial console
devices are, but not all firmware supplies it. Also, EFI supports
multiple simultaneous consoles and doesn't tell the kernel which
should be the "primary" one.
So how do you tell Linux which console device to use?
- If your firmware supplies the HCDP, it is simplest to
configure EFI with a single device (either a UART or a VGA
card) as the console. Then you don't need to tell Linux
anything; the kernel will automatically use the EFI console.
(This works only in 2.6.6 or later; prior to that you had
to specify "console=ttyS0" to get a serial console.)
- Without an HCDP, Linux defaults to a VGA console unless you
specify a "console=" argument.
NOTE: Don't assume that a serial console device will be /dev/ttyS0.
It might be ttyS1, ttyS2, etc. Make sure you have the appropriate
entries in /etc/inittab (for getty) and /etc/securetty (to allow
root login).
Early Serial Console
====================
The kernel can't start using a serial console until it knows where
the device lives. Normally this happens when the driver enumerates
all the serial devices, which can happen a minute or more after the
kernel starts booting.
2.6.10 and later kernels have an "early uart" driver that works
very early in the boot process. The kernel will automatically use
this if the user supplies an argument like "console=uart,io,0x3f8",
or if the EFI console path contains only a UART device and the
firmware supplies an HCDP.
Troubleshooting Serial Console Problems
=======================================
No kernel output after elilo prints "Uncompressing Linux... done":
- You specified "console=ttyS0" but Linux changed the device
to which ttyS0 refers. Configure exactly one EFI console
device[3] and remove the "console=" option.
- The EFI console path contains both a VGA device and a UART.
EFI and elilo use both, but Linux defaults to VGA. Remove
the VGA device from the EFI console path[3].
- Multiple UARTs selected as EFI console devices. EFI and
elilo use all selected devices, but Linux uses only one.
Make sure only one UART is selected in the EFI console
path[3].
- You're connected to an HP MP port[2] but have a non-MP UART
selected as EFI console device. EFI uses the MP as a
console device even when it isn't explicitly selected.
Either move the console cable to the non-MP UART, or change
the EFI console path[3] to the MP UART.
Long pause (60+ seconds) between "Uncompressing Linux... done" and
start of kernel output:
- No early console because you used "console=ttyS<n>". Remove
the "console=" option if your firmware supplies an HCDP.
- If you don't have an HCDP, the kernel doesn't know where
your console lives until the driver discovers serial
devices. Use "console=uart,io,0x3f8" (or appropriate
address for your machine).
Kernel and init script output works fine, but no "login:" prompt:
- Add getty entry to /etc/inittab for console tty. Look for
the "Adding console on ttyS<n>" message that tells you which
device is the console.
"login:" prompt, but can't login as root:
- Add entry to /etc/securetty for console tty.
No ACPI serial devices found in 2.6.17 or later:
- Turn on CONFIG_PNP and CONFIG_PNPACPI. Prior to 2.6.17, ACPI
serial devices were discovered by 8250_acpi. In 2.6.17,
8250_acpi was replaced by the combination of 8250_pnp and
CONFIG_PNPACPI.
[1]
http://www.dig64.org/specifications/agreement
The table was originally defined as the "HCDP" for "Headless
Console/Debug Port." The current version is the "PCDP" for
"Primary Console and Debug Port Devices."
[2]
The HP MP (management processor) is a PCI device that provides
several UARTs. One of the UARTs is often used as a console; the
EFI Boot Manager identifies it as "Acpi(HWP0002,700)/Pci(...)/Uart".
The external connection is usually a 25-pin connector, and a
special dongle converts that to three 9-pin connectors, one of
which is labelled "Console."
[3]
EFI console devices are configured using the EFI Boot Manager
"Boot option maintenance" menu. You may have to interrupt the
boot sequence to use this menu, and you will have to reset the
box after changing console configuration.
Documentation/core-api/cpu_hotplug.rst
View file @ cf8e8658
...@@ -40,12 +40,6 @@ Command Line Switches ...@@ -40,12 +40,6 @@ Command Line Switches
supplied here is lower than the number of physically available CPUs, then supplied here is lower than the number of physically available CPUs, then
those CPUs can not be brought online later. those CPUs can not be brought online later.
``additional_cpus=n``
Use this to limit hotpluggable CPUs. This option sets
``cpu_possible_mask = cpu_present_mask + additional_cpus``
This option is limited to the IA64 architecture.
``possible_cpus=n`` ``possible_cpus=n``
This option sets ``possible_cpus`` bits in ``cpu_possible_mask``. This option sets ``possible_cpus`` bits in ``cpu_possible_mask``.
......
MAINTAINERS
View file @ cf8e8658
...@@ -9935,12 +9935,6 @@ F: Documentation/driver-api/i3c ...@@ -9935,12 +9935,6 @@ F: Documentation/driver-api/i3c
F: drivers/i3c/ F: drivers/i3c/
F: include/linux/i3c/ F: include/linux/i3c/
IA64 (Itanium) PLATFORM
L: linux-ia64@vger.kernel.org
S: Orphan
F: Documentation/arch/ia64/
F: arch/ia64/
IBM Operation Panel Input Driver IBM Operation Panel Input Driver
M: Eddie James <eajames@linux.ibm.com> M: Eddie James <eajames@linux.ibm.com>
L: linux-input@vger.kernel.org L: linux-input@vger.kernel.org
...@@ -16269,11 +16263,6 @@ L: linux-i2c@vger.kernel.org ...@@ -16269,11 +16263,6 @@ L: linux-i2c@vger.kernel.org
S: Maintained S: Maintained
F: drivers/i2c/muxes/i2c-mux-pca9541.c F: drivers/i2c/muxes/i2c-mux-pca9541.c
PCDP - PRIMARY CONSOLE AND DEBUG PORT
M: Khalid Aziz <khalid@gonehiking.org>
S: Maintained
F: drivers/firmware/pcdp.*
PCI DRIVER FOR AARDVARK (Marvell Armada 3700) PCI DRIVER FOR AARDVARK (Marvell Armada 3700)
M: Thomas Petazzoni <thomas.petazzoni@bootlin.com> M: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
M: Pali Rohár <pali@kernel.org> M: Pali Rohár <pali@kernel.org>
......
arch/Kconfig
View file @ cf8e8658
...@@ -1088,7 +1088,6 @@ config HAVE_ARCH_COMPAT_MMAP_BASES ...@@ -1088,7 +1088,6 @@ config HAVE_ARCH_COMPAT_MMAP_BASES
config PAGE_SIZE_LESS_THAN_64KB config PAGE_SIZE_LESS_THAN_64KB
def_bool y def_bool y
depends on !ARM64_64K_PAGES depends on !ARM64_64K_PAGES
depends on !IA64_PAGE_SIZE_64KB
depends on !PAGE_SIZE_64KB depends on !PAGE_SIZE_64KB
depends on !PARISC_PAGE_SIZE_64KB depends on !PARISC_PAGE_SIZE_64KB
depends on PAGE_SIZE_LESS_THAN_256KB depends on PAGE_SIZE_LESS_THAN_256KB
......
arch/ia64/Kbuild deleted 100644 → 0
View file @ a0334bf7
# SPDX-License-Identifier: GPL-2.0-only
obj-y += kernel/ mm/
obj-$(CONFIG_IA64_SGI_UV) += uv/
arch/ia64/Kconfig deleted 100644 → 0
View file @ a0334bf7
This diff is collapsed.
arch/ia64/Kconfig.debug deleted 100644 → 0
View file @ a0334bf7
# SPDX-License-Identifier: GPL-2.0
choice
prompt "Physical memory granularity"
default IA64_GRANULE_64MB
config IA64_GRANULE_16MB
bool "16MB"
help
IA-64 identity-mapped regions use a large page size called "granules".
Select "16MB" for a small granule size.
Select "64MB" for a large granule size. This is the current default.
config IA64_GRANULE_64MB
bool "64MB"
depends on BROKEN
endchoice
config IA64_PRINT_HAZARDS
bool "Print possible IA-64 dependency violations to console"
depends on DEBUG_KERNEL
help
Selecting this option prints more information for Illegal Dependency
Faults, that is, for Read-after-Write (RAW), Write-after-Write (WAW),
or Write-after-Read (WAR) violations. This option is ignored if you
are compiling for an Itanium A step processor
(CONFIG_ITANIUM_ASTEP_SPECIFIC). If you're unsure, select Y.
config DISABLE_VHPT
bool "Disable VHPT"
depends on DEBUG_KERNEL
help
The Virtual Hash Page Table (VHPT) enhances virtual address
translation performance. Normally you want the VHPT active but you
can select this option to disable the VHPT for debugging. If you're
unsure, answer N.
config IA64_DEBUG_CMPXCHG
bool "Turn on compare-and-exchange bug checking (slow!)"
depends on DEBUG_KERNEL && PRINTK
help
Selecting this option turns on bug checking for the IA-64
compare-and-exchange instructions. This is slow! Itaniums
from step B3 or later don't have this problem. If you're unsure,
select N.
config IA64_DEBUG_IRQ
bool "Turn on irq debug checks (slow!)"
depends on DEBUG_KERNEL
help
Selecting this option turns on bug checking for the IA-64 irq_save
and restore instructions. It's useful for tracking down spinlock
problems, but slow! If you're unsure, select N.
arch/ia64/Makefile deleted 100644 → 0
View file @ a0334bf7
#
# ia64/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1998-2004 by David Mosberger-Tang <davidm@hpl.hp.com>
#
KBUILD_DEFCONFIG := generic_defconfig
NM := $(CROSS_COMPILE)nm -B
CHECKFLAGS += -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__
OBJCOPYFLAGS := --strip-all
LDFLAGS_vmlinux := -static
KBUILD_AFLAGS_KERNEL := -mconstant-gp
EXTRA :=
cflags-y := -pipe $(EXTRA) -ffixed-r13 -mfixed-range=f12-f15,f32-f127 \
-frename-registers -fno-optimize-sibling-calls
KBUILD_CFLAGS_KERNEL := -mconstant-gp
GAS_STATUS = $(shell $(srctree)/arch/ia64/scripts/check-gas "$(CC)" "$(OBJDUMP)")
KBUILD_CPPFLAGS += $(shell $(srctree)/arch/ia64/scripts/toolchain-flags "$(CC)" "$(OBJDUMP)" "$(READELF)")
ifeq ($(GAS_STATUS),buggy)
$(error Sorry, you need a newer version of the assember, one that is built from \
a source-tree that post-dates 18-Dec-2002. You can find a pre-compiled \
static binary of such an assembler at: \
\
ftp://ftp.hpl.hp.com/pub/linux-ia64/gas-030124.tar.gz)
endif
quiet_cmd_gzip = GZIP $@
cmd_gzip = cat $(real-prereqs) | $(KGZIP) -n -f -9 > $@
quiet_cmd_objcopy = OBJCOPY $@
cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
KBUILD_CFLAGS += $(cflags-y)
libs-y += arch/ia64/lib/
drivers-y += arch/ia64/pci/ arch/ia64/hp/common/
PHONY += compressed check
all: compressed unwcheck
compressed: vmlinux.gz
vmlinuz: vmlinux.gz
vmlinux.gz: vmlinux.bin FORCE
$(call if_changed,gzip)
vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)
unwcheck: vmlinux
-$(Q)READELF=$(READELF) $(PYTHON3) $(srctree)/arch/ia64/scripts/unwcheck.py $<
archheaders:
$(Q)$(MAKE) $(build)=arch/ia64/kernel/syscalls all
CLEAN_FILES += vmlinux.gz
install: KBUILD_IMAGE := vmlinux.gz
install:
$(call cmd,install)
define archhelp
echo '* compressed - Build compressed kernel image'
echo ' install - Install compressed kernel image'
echo '* unwcheck - Check vmlinux for invalid unwind info'
endef
arch/ia64/configs/bigsur_defconfig deleted 100644 → 0
View file @ a0334bf7
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_LOG_BUF_SHIFT=16
CONFIG_PROFILING=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_SGI_PARTITION=y
CONFIG_SMP=y
CONFIG_NR_CPUS=2
CONFIG_PREEMPT=y
CONFIG_IA64_PALINFO=y
CONFIG_BINFMT_MISC=m
CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_FAN=m
CONFIG_ACPI_PROCESSOR=m
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IPV6 is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=m
CONFIG_ATA=m
CONFIG_ATA_GENERIC=m
CONFIG_ATA_PIIX=m
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_QLOGIC_1280=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_MULTIPATH=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
CONFIG_INPUT_EVDEV=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_HW_RANDOM is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_EFI=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_AGP=m
CONFIG_AGP_I460=m
CONFIG_DRM=m
CONFIG_DRM_R128=m
CONFIG_SOUND=m
CONFIG_SND=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_CS4281=m
CONFIG_USB_HIDDEV=y
CONFIG_USB=m
CONFIG_USB_MON=m
CONFIG_USB_UHCI_HCD=m
CONFIG_USB_ACM=m
CONFIG_USB_PRINTER=m
CONFIG_USB_STORAGE=m
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_XFS_FS=y
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_AUTOFS_FS=m
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
CONFIG_VFAT_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_HUGETLBFS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V4=m
CONFIG_NFSD=m
CONFIG_NFSD_V4=y
CONFIG_CIFS=m
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_UTF8=m
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
arch/ia64/configs/generic_defconfig deleted 100644 → 0
View file @ a0334bf7
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=20
CONFIG_CGROUPS=y
CONFIG_CPUSETS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_KALLSYMS_ALL=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_SGI_PARTITION=y
CONFIG_MCKINLEY=y
CONFIG_IA64_PAGE_SIZE_64KB=y
CONFIG_IA64_CYCLONE=y
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_IA64_MCA_RECOVERY=y
CONFIG_IA64_PALINFO=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_BINFMT_MISC=m
CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_FAN=m
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_PROCESSOR=m
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_SYN_COOKIES=y
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_CONNECTOR=y
# CONFIG_PNP_DEBUG_MESSAGES is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_SGI_XP=m
CONFIG_ATA=y
CONFIG_ATA_GENERIC=y
CONFIG_PATA_CMD64X=y
CONFIG_ATA_PIIX=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_FC_ATTRS=y
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_QLOGIC_1280=y
CONFIG_SATA_VITESSE=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_MULTIPATH=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_FUSION=y
CONFIG_FUSION_SPI=y
CONFIG_FUSION_FC=m
CONFIG_FUSION_SAS=y
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_NETCONSOLE=y
CONFIG_TIGON3=y
CONFIG_NET_TULIP=y
CONFIG_TULIP=m
CONFIG_E100=m
CONFIG_E1000=y
CONFIG_IGB=y
# CONFIG_SERIO_SERPORT is not set
CONFIG_GAMEPORT=m
CONFIG_SERIAL_NONSTANDARD=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=6
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_HW_RANDOM is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_EFI=y
CONFIG_HPET=y
CONFIG_AGP=m
CONFIG_AGP_I460=m
CONFIG_AGP_HP_ZX1=m
CONFIG_DRM=m
CONFIG_DRM_TDFX=m
CONFIG_DRM_R128=m
CONFIG_DRM_RADEON=m
CONFIG_DRM_MGA=m
CONFIG_DRM_SIS=m
CONFIG_SOUND=m
CONFIG_SND=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_DUMMY=m
CONFIG_SND_VIRMIDI=m
CONFIG_SND_MTPAV=m
CONFIG_SND_SERIAL_U16550=m
CONFIG_SND_MPU401=m
CONFIG_SND_CS4281=m
CONFIG_SND_CS46XX=m
CONFIG_SND_EMU10K1=m
CONFIG_SND_FM801=m
CONFIG_HID_GYRATION=m
CONFIG_HID_PANTHERLORD=m
CONFIG_HID_PETALYNX=m
CONFIG_HID_SAMSUNG=m
CONFIG_HID_SONY=m
CONFIG_HID_SUNPLUS=m
CONFIG_USB=m
CONFIG_USB_MON=m
CONFIG_USB_EHCI_HCD=m
CONFIG_USB_OHCI_HCD=m
CONFIG_USB_UHCI_HCD=m
CONFIG_USB_STORAGE=m
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_MTHCA=m
CONFIG_INFINIBAND_IPOIB=m
CONFIG_INTEL_IOMMU=y
CONFIG_MSPEC=m
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_REISERFS_FS=y
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=y
CONFIG_AUTOFS_FS=m
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
CONFIG_VFAT_FS=y
CONFIG_NTFS_FS=m
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_HUGETLBFS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V4=m
CONFIG_NFSD=m
CONFIG_NFSD_V4=y
CONFIG_CIFS=m
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_MD5=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_T10DIF=y
arch/ia64/configs/gensparse_defconfig deleted 100644 → 0
View file @ a0334bf7
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=20
CONFIG_BLK_DEV_INITRD=y
CONFIG_KALLSYMS_ALL=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_SGI_PARTITION=y
CONFIG_MCKINLEY=y
CONFIG_IA64_CYCLONE=y
CONFIG_SMP=y
CONFIG_NR_CPUS=512
CONFIG_HOTPLUG_CPU=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_IA64_MCA_RECOVERY=y
CONFIG_IA64_PALINFO=y
CONFIG_BINFMT_MISC=m
CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_FAN=m
CONFIG_ACPI_PROCESSOR=m
CONFIG_HOTPLUG_PCI=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_SYN_COOKIES=y
# CONFIG_IPV6 is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_ATA=y
CONFIG_ATA_GENERIC=y
CONFIG_PATA_CMD64X=y
CONFIG_ATA_PIIX=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_FC_ATTRS=y
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_QLOGIC_1280=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_MULTIPATH=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_FUSION=y
CONFIG_FUSION_SPI=y
CONFIG_FUSION_FC=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_NETCONSOLE=y
CONFIG_TIGON3=y
CONFIG_NET_TULIP=y
CONFIG_TULIP=m
CONFIG_E100=m
CONFIG_E1000=y
# CONFIG_SERIO_SERPORT is not set
CONFIG_GAMEPORT=m
CONFIG_SERIAL_NONSTANDARD=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=6
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_HW_RANDOM is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_EFI=y
CONFIG_HPET=y
CONFIG_AGP=m
CONFIG_AGP_I460=m
CONFIG_AGP_HP_ZX1=m
CONFIG_DRM=m
CONFIG_DRM_TDFX=m
CONFIG_DRM_R128=m
CONFIG_DRM_RADEON=m
CONFIG_DRM_MGA=m
CONFIG_DRM_SIS=m
CONFIG_SOUND=m
CONFIG_SND=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_DUMMY=m
CONFIG_SND_VIRMIDI=m
CONFIG_SND_MTPAV=m
CONFIG_SND_SERIAL_U16550=m
CONFIG_SND_MPU401=m
CONFIG_SND_CS4281=m
CONFIG_SND_CS46XX=m
CONFIG_SND_EMU10K1=m
CONFIG_SND_FM801=m
CONFIG_USB=m
CONFIG_USB_MON=m
CONFIG_USB_EHCI_HCD=m
CONFIG_USB_OHCI_HCD=m
CONFIG_USB_UHCI_HCD=m
CONFIG_USB_STORAGE=m
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_MTHCA=m
CONFIG_INFINIBAND_IPOIB=m
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_REISERFS_FS=y
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=y
CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
CONFIG_VFAT_FS=y
CONFIG_NTFS_FS=m
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_HUGETLBFS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V4=m
CONFIG_NFSD=m
CONFIG_NFSD_V4=y
CONFIG_CIFS=m
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_CRYPTO_MD5=y
arch/ia64/configs/tiger_defconfig deleted 100644 → 0
View file @ a0334bf7
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=20
CONFIG_BLK_DEV_INITRD=y
CONFIG_KALLSYMS_ALL=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_PARTITION_ADVANCED=y
CONFIG_SGI_PARTITION=y
CONFIG_MCKINLEY=y
CONFIG_IA64_PAGE_SIZE_64KB=y
CONFIG_IA64_CYCLONE=y
CONFIG_SMP=y
CONFIG_NR_CPUS=16
CONFIG_HOTPLUG_CPU=y
CONFIG_PERMIT_BSP_REMOVE=y
CONFIG_FORCE_CPEI_RETARGET=y
CONFIG_IA64_MCA_RECOVERY=y
CONFIG_IA64_PALINFO=y
CONFIG_KEXEC=y
CONFIG_BINFMT_MISC=m
CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_FAN=m
CONFIG_ACPI_PROCESSOR=m
CONFIG_HOTPLUG_PCI=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_SYN_COOKIES=y
# CONFIG_IPV6 is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_ATA=y
CONFIG_ATA_GENERIC=y
CONFIG_PATA_CMD64X=y
CONFIG_ATA_PIIX=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_FC_ATTRS=y
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_QLOGIC_1280=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_MULTIPATH=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
CONFIG_FUSION=y
CONFIG_FUSION_SPI=y
CONFIG_FUSION_FC=y
CONFIG_FUSION_CTL=y
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_NETCONSOLE=y
CONFIG_TIGON3=y
CONFIG_NET_TULIP=y
CONFIG_TULIP=m
CONFIG_E100=m
CONFIG_E1000=y
# CONFIG_SERIO_SERPORT is not set
CONFIG_GAMEPORT=m
CONFIG_SERIAL_NONSTANDARD=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=6
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_HW_RANDOM is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_EFI=y
CONFIG_HPET=y
CONFIG_AGP=m
CONFIG_AGP_I460=m
CONFIG_DRM=m
CONFIG_DRM_TDFX=m
CONFIG_DRM_R128=m
CONFIG_DRM_RADEON=m
CONFIG_DRM_MGA=m
CONFIG_DRM_SIS=m
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=m
CONFIG_USB_OHCI_HCD=m
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_STORAGE=m
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_REISERFS_FS=y
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=y
CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
CONFIG_VFAT_FS=y
CONFIG_NTFS_FS=m
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_HUGETLBFS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V4=m
CONFIG_NFSD=m
CONFIG_NFSD_V4=y
CONFIG_CIFS=m
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_IA64_GRANULE_16MB=y
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_MD5=y
arch/ia64/configs/zx1_defconfig deleted 100644 → 0
View file @ a0334bf7
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_MCKINLEY=y
CONFIG_SMP=y
CONFIG_NR_CPUS=16
CONFIG_HOTPLUG_CPU=y
CONFIG_FLATMEM_MANUAL=y
CONFIG_IA64_MCA_RECOVERY=y
CONFIG_IA64_PALINFO=y
CONFIG_CRASH_DUMP=y
CONFIG_BINFMT_MISC=y
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_ATA=y
CONFIG_ATA_GENERIC=y
CONFIG_PATA_CMD64X=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
CONFIG_CHR_DEV_SG=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_FC_ATTRS=y
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_QLOGIC_1280=y
CONFIG_FUSION=y
CONFIG_FUSION_SPI=y
CONFIG_FUSION_FC=y
CONFIG_FUSION_CTL=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
CONFIG_TIGON3=y
CONFIG_NET_TULIP=y
CONFIG_TULIP=y
CONFIG_TULIP_MWI=y
CONFIG_TULIP_MMIO=y
CONFIG_TULIP_NAPI=y
CONFIG_TULIP_NAPI_HW_MITIGATION=y
CONFIG_E100=y
CONFIG_E1000=y
CONFIG_INPUT_JOYDEV=y
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO_I8042 is not set
# CONFIG_SERIO_SERPORT is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=8
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_HW_RANDOM is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_EFI=y
CONFIG_I2C_CHARDEV=y
CONFIG_AGP=y
CONFIG_AGP_HP_ZX1=y
CONFIG_DRM=y
CONFIG_DRM_RADEON=y
CONFIG_FB_RADEON=y
CONFIG_FB_RADEON_DEBUG=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_FM801=y
CONFIG_USB_HIDDEV=y
CONFIG_USB=y
CONFIG_USB_MON=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_STORAGE=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT3_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_UDF_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_HUGETLBFS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V4=y
CONFIG_NFSD=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=y
CONFIG_NLS_CODEPAGE_775=y
CONFIG_NLS_CODEPAGE_850=y
CONFIG_NLS_CODEPAGE_852=y
CONFIG_NLS_CODEPAGE_855=y
CONFIG_NLS_CODEPAGE_857=y
CONFIG_NLS_CODEPAGE_860=y
CONFIG_NLS_CODEPAGE_861=y
CONFIG_NLS_CODEPAGE_862=y
CONFIG_NLS_CODEPAGE_863=y
CONFIG_NLS_CODEPAGE_864=y
CONFIG_NLS_CODEPAGE_865=y
CONFIG_NLS_CODEPAGE_866=y
CONFIG_NLS_CODEPAGE_869=y
CONFIG_NLS_CODEPAGE_936=y
CONFIG_NLS_CODEPAGE_950=y
CONFIG_NLS_CODEPAGE_932=y
CONFIG_NLS_CODEPAGE_949=y
CONFIG_NLS_CODEPAGE_874=y
CONFIG_NLS_ISO8859_8=y
CONFIG_NLS_CODEPAGE_1251=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=y
CONFIG_NLS_ISO8859_3=y
CONFIG_NLS_ISO8859_4=y
CONFIG_NLS_ISO8859_5=y
CONFIG_NLS_ISO8859_6=y
CONFIG_NLS_ISO8859_7=y
CONFIG_NLS_ISO8859_9=y
CONFIG_NLS_ISO8859_13=y
CONFIG_NLS_ISO8859_14=y
CONFIG_NLS_ISO8859_15=y
CONFIG_NLS_KOI8_R=y
CONFIG_NLS_KOI8_U=y
CONFIG_NLS_UTF8=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_IA64_PRINT_HAZARDS=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
arch/ia64/hp/common/Makefile deleted 100644 → 0
View file @ a0334bf7
# SPDX-License-Identifier: GPL-2.0-only
#
# ia64/platform/hp/common/Makefile
#
# Copyright (C) 2002 Hewlett Packard
# Copyright (C) Alex Williamson (alex_williamson@hp.com)
#
obj-$(CONFIG_IA64_HP_SBA_IOMMU) += sba_iommu.o
obj-$(CONFIG_IA64_HP_AML_NFW) += aml_nfw.o
arch/ia64/hp/common/aml_nfw.c deleted 100644 → 0
View file @ a0334bf7
// SPDX-License-Identifier: GPL-2.0-only
/*
* OpRegion handler to allow AML to call native firmware
*
* (c) Copyright 2007 Hewlett-Packard Development Company, L.P.
* Bjorn Helgaas <bjorn.helgaas@hp.com>
*
* This driver implements HP Open Source Review Board proposal 1842,
* which was approved on 9/20/2006.
*
* For technical documentation, see the HP SPPA Firmware EAS, Appendix F.
*
* ACPI does not define a mechanism for AML methods to call native firmware
* interfaces such as PAL or SAL. This OpRegion handler adds such a mechanism.
* After the handler is installed, an AML method can call native firmware by
* storing the arguments and firmware entry point to specific offsets in the
* OpRegion. When AML reads the "return value" offset from the OpRegion, this
* handler loads up the arguments, makes the firmware call, and returns the
* result.
*/
#include <linux/module.h>
#include <linux/acpi.h>
#include <asm/sal.h>
MODULE_AUTHOR("Bjorn Helgaas <bjorn.helgaas@hp.com>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("ACPI opregion handler for native firmware calls");
static bool force_register;
module_param_named(force, force_register, bool, 0);
MODULE_PARM_DESC(force, "Install opregion handler even without HPQ5001 device");
#define AML_NFW_SPACE 0xA1
struct ia64_pdesc {
void *ip;
void *gp;
};
/*
* N.B. The layout of this structure is defined in the HP SPPA FW EAS, and
* the member offsets are embedded in AML methods.
*/
struct ia64_nfw_context {
u64 arg[8];
struct ia64_sal_retval ret;
u64 ip;
u64 gp;
u64 pad[2];
};
static void *virt_map(u64 address)
{
if (address & (1UL << 63))
return (void *) (__IA64_UNCACHED_OFFSET | address);
return __va(address);
}
static void aml_nfw_execute(struct ia64_nfw_context *c)
{
struct ia64_pdesc virt_entry;
ia64_sal_handler entry;
virt_entry.ip = virt_map(c->ip);
virt_entry.gp = virt_map(c->gp);
entry = (ia64_sal_handler) &virt_entry;
IA64_FW_CALL(entry, c->ret,
c->arg[0], c->arg[1], c->arg[2], c->arg[3],
c->arg[4], c->arg[5], c->arg[6], c->arg[7]);
}
static void aml_nfw_read_arg(u8 *offset, u32 bit_width, u64 *value)
{
switch (bit_width) {
case 8:
*value = *(u8 *)offset;
break;
case 16:
*value = *(u16 *)offset;
break;
case 32:
*value = *(u32 *)offset;
break;
case 64:
*value = *(u64 *)offset;
break;
}
}
static void aml_nfw_write_arg(u8 *offset, u32 bit_width, u64 *value)
{
switch (bit_width) {
case 8:
*(u8 *) offset = *value;
break;
case 16:
*(u16 *) offset = *value;
break;
case 32:
*(u32 *) offset = *value;
break;
case 64:
*(u64 *) offset = *value;
break;
}
}
static acpi_status aml_nfw_handler(u32 function, acpi_physical_address address,
u32 bit_width, u64 *value, void *handler_context,
void *region_context)
{
struct ia64_nfw_context *context = handler_context;
u8 *offset = (u8 *) context + address;
if (bit_width != 8 && bit_width != 16 &&
bit_width != 32 && bit_width != 64)
return AE_BAD_PARAMETER;
if (address + (bit_width >> 3) > sizeof(struct ia64_nfw_context))
return AE_BAD_PARAMETER;
switch (function) {
case ACPI_READ:
if (address == offsetof(struct ia64_nfw_context, ret))
aml_nfw_execute(context);
aml_nfw_read_arg(offset, bit_width, value);
break;
case ACPI_WRITE:
aml_nfw_write_arg(offset, bit_width, value);
break;
}
return AE_OK;
}
static struct ia64_nfw_context global_context;
static int global_handler_registered;
static int aml_nfw_add_global_handler(void)
{
acpi_status status;
if (global_handler_registered)
return 0;
status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT,
AML_NFW_SPACE, aml_nfw_handler, NULL, &global_context);
if (ACPI_FAILURE(status))
return -ENODEV;
global_handler_registered = 1;
printk(KERN_INFO "Global 0x%02X opregion handler registered\n",
AML_NFW_SPACE);
return 0;
}
static int aml_nfw_remove_global_handler(void)
{
acpi_status status;
if (!global_handler_registered)
return 0;
status = acpi_remove_address_space_handler(ACPI_ROOT_OBJECT,
AML_NFW_SPACE, aml_nfw_handler);
if (ACPI_FAILURE(status))
return -ENODEV;
global_handler_registered = 0;
printk(KERN_INFO "Global 0x%02X opregion handler removed\n",
AML_NFW_SPACE);
return 0;
}
static int aml_nfw_add(struct acpi_device *device)
{
/*
* We would normally allocate a new context structure and install
* the address space handler for the specific device we found.
* But the HP-UX implementation shares a single global context
* and always puts the handler at the root, so we'll do the same.
*/
return aml_nfw_add_global_handler();
}
static void aml_nfw_remove(struct acpi_device *device)
{
aml_nfw_remove_global_handler();
}
static const struct acpi_device_id aml_nfw_ids[] = {
{"HPQ5001", 0},
{"", 0}
};
static struct acpi_driver acpi_aml_nfw_driver = {
.name = "native firmware",
.ids = aml_nfw_ids,
.ops = {
.add = aml_nfw_add,
.remove = aml_nfw_remove,
},
};
static int __init aml_nfw_init(void)
{
int result;
if (force_register)
aml_nfw_add_global_handler();
result = acpi_bus_register_driver(&acpi_aml_nfw_driver);
if (result < 0) {
aml_nfw_remove_global_handler();
return result;
}
return 0;
}
static void __exit aml_nfw_exit(void)
{
acpi_bus_unregister_driver(&acpi_aml_nfw_driver);
aml_nfw_remove_global_handler();
}
module_init(aml_nfw_init);
module_exit(aml_nfw_exit);
arch/ia64/hp/common/sba_iommu.c deleted 100644 → 0
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# SPDX-License-Identifier: GPL-2.0
generated-y += syscall_table.h
generic-y += agp.h
generic-y += kvm_para.h
generic-y += mcs_spinlock.h
generic-y += vtime.h
arch/ia64/include/asm/acenv.h deleted 100644 → 0
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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* IA64 specific ACPICA environments and implementation
*
* Copyright (C) 2014, Intel Corporation
* Author: Lv Zheng <lv.zheng@intel.com>
*/
#ifndef _ASM_IA64_ACENV_H
#define _ASM_IA64_ACENV_H
#include <asm/intrinsics.h>
#define COMPILER_DEPENDENT_INT64 long
#define COMPILER_DEPENDENT_UINT64 unsigned long
/* Asm macros */
static inline int
ia64_acpi_acquire_global_lock(unsigned int *lock)
{
unsigned int old, new, val;
do {
old = *lock;
new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
val = ia64_cmpxchg4_acq(lock, new, old);
} while (unlikely (val != old));
return (new < 3) ? -1 : 0;
}
static inline int
ia64_acpi_release_global_lock(unsigned int *lock)
{
unsigned int old, new, val;
do {
old = *lock;
new = old & ~0x3;
val = ia64_cmpxchg4_acq(lock, new, old);
} while (unlikely (val != old));
return old & 0x1;
}
#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
((Acq) = ia64_acpi_acquire_global_lock(&facs->global_lock))
#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
((Acq) = ia64_acpi_release_global_lock(&facs->global_lock))
#endif /* _ASM_IA64_ACENV_H */
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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* (c) Copyright 2003, 2006 Hewlett-Packard Development Company, L.P.
* Alex Williamson <alex.williamson@hp.com>
* Bjorn Helgaas <bjorn.helgaas@hp.com>
*
* Vendor specific extensions to ACPI.
*/
#ifndef _ASM_IA64_ACPI_EXT_H
#define _ASM_IA64_ACPI_EXT_H
#include <linux/types.h>
extern acpi_status hp_acpi_csr_space (acpi_handle, u64 *base, u64 *length);
#endif /* _ASM_IA64_ACPI_EXT_H */
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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 1999 VA Linux Systems
* Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
* Copyright (C) 2000,2001 J.I. Lee <jung-ik.lee@intel.com>
* Copyright (C) 2001,2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
*/
#ifndef _ASM_ACPI_H
#define _ASM_ACPI_H
#ifdef __KERNEL__
#include <acpi/proc_cap_intel.h>
#include <linux/init.h>
#include <linux/numa.h>
#include <asm/numa.h>
extern int acpi_lapic;
#define acpi_disabled 0 /* ACPI always enabled on IA64 */
#define acpi_noirq 0 /* ACPI always enabled on IA64 */
#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
#define acpi_strict 1 /* no ACPI spec workarounds on IA64 */
static inline bool acpi_has_cpu_in_madt(void)
{
return !!acpi_lapic;
}
#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
static inline void disable_acpi(void) { }
int acpi_request_vector (u32 int_type);
int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
/* Low-level suspend routine. */
extern int acpi_suspend_lowlevel(void);
static inline unsigned long acpi_get_wakeup_address(void)
{
return 0;
}
/*
* Record the cpei override flag and current logical cpu. This is
* useful for CPU removal.
*/
extern unsigned int can_cpei_retarget(void);
extern unsigned int is_cpu_cpei_target(unsigned int cpu);
extern void set_cpei_target_cpu(unsigned int cpu);
extern unsigned int get_cpei_target_cpu(void);
extern void prefill_possible_map(void);
#ifdef CONFIG_ACPI_HOTPLUG_CPU
extern int additional_cpus;
#else
#define additional_cpus 0
#endif
#ifdef CONFIG_ACPI_NUMA
#if MAX_NUMNODES > 256
#define MAX_PXM_DOMAINS MAX_NUMNODES
#else
#define MAX_PXM_DOMAINS (256)
#endif
extern int pxm_to_nid_map[MAX_PXM_DOMAINS];
extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
#endif
static inline bool arch_has_acpi_pdc(void) { return true; }
static inline void arch_acpi_set_proc_cap_bits(u32 *cap)
{
*cap |= ACPI_PROC_CAP_EST_CAPABILITY_SMP;
}
#ifdef CONFIG_ACPI_NUMA
extern cpumask_t early_cpu_possible_map;
#define for_each_possible_early_cpu(cpu) \
for_each_cpu((cpu), &early_cpu_possible_map)
static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
{
int low_cpu, high_cpu;
int cpu;
int next_nid = 0;
low_cpu = cpumask_weight(&early_cpu_possible_map);
high_cpu = max(low_cpu, min_cpus);
high_cpu = min(high_cpu + reserve_cpus, NR_CPUS);
for (cpu = low_cpu; cpu < high_cpu; cpu++) {
cpumask_set_cpu(cpu, &early_cpu_possible_map);
if (node_cpuid[cpu].nid == NUMA_NO_NODE) {
node_cpuid[cpu].nid = next_nid;
next_nid++;
if (next_nid >= num_online_nodes())
next_nid = 0;
}
}
}
extern void acpi_numa_fixup(void);
#endif /* CONFIG_ACPI_NUMA */
#endif /*__KERNEL__*/
#endif /*_ASM_ACPI_H*/
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#include <generated/asm-offsets.h>
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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_IA64_ASM_PROTOTYPES_H
#define _ASM_IA64_ASM_PROTOTYPES_H
#include <asm/cacheflush.h>
#include <asm/checksum.h>
#include <asm/esi.h>
#include <asm/ftrace.h>
#include <asm/page.h>
#include <asm/pal.h>
#include <asm/string.h>
#include <linux/uaccess.h>
#include <asm/unwind.h>
#include <asm/xor.h>
extern const char ia64_ivt[];
signed int __divsi3(signed int, unsigned int);
signed int __modsi3(signed int, unsigned int);
signed long long __divdi3(signed long long, unsigned long long);
signed long long __moddi3(signed long long, unsigned long long);
unsigned int __udivsi3(unsigned int, unsigned int);
unsigned int __umodsi3(unsigned int, unsigned int);
unsigned long long __udivdi3(unsigned long long, unsigned long long);
unsigned long long __umoddi3(unsigned long long, unsigned long long);
#endif /* _ASM_IA64_ASM_PROTOTYPES_H */
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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_IA64_ASMMACRO_H
#define _ASM_IA64_ASMMACRO_H
/*
* Copyright (C) 2000-2001, 2003-2004 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
#define ENTRY(name) \
.align 32; \
.proc name; \
name:
#define ENTRY_MIN_ALIGN(name) \
.align 16; \
.proc name; \
name:
#define GLOBAL_ENTRY(name) \
.global name; \
ENTRY(name)
#define END(name) \
.endp name
/*
* Helper macros to make unwind directives more readable:
*/
/* prologue_gr: */
#define ASM_UNW_PRLG_RP 0x8
#define ASM_UNW_PRLG_PFS 0x4
#define ASM_UNW_PRLG_PSP 0x2
#define ASM_UNW_PRLG_PR 0x1
#define ASM_UNW_PRLG_GRSAVE(ninputs) (32+(ninputs))
/*
* Helper macros for accessing user memory.
*
* When adding any new .section/.previous entries here, make sure to
* also add it to the DISCARD section in arch/ia64/kernel/gate.lds.S or
* unpleasant things will happen.
*/
.section "__ex_table", "a" // declare section & section attributes
.previous
# define EX(y,x...) \
.xdata4 "__ex_table", 99f-., y-.; \
[99:] x
# define EXCLR(y,x...) \
.xdata4 "__ex_table", 99f-., y-.+4; \
[99:] x
/*
* Tag MCA recoverable instruction ranges.
*/
.section "__mca_table", "a" // declare section & section attributes
.previous
# define MCA_RECOVER_RANGE(y) \
.xdata4 "__mca_table", y-., 99f-.; \
[99:]
/*
* Mark instructions that need a load of a virtual address patched to be
* a load of a physical address. We use this either in critical performance
* path (ivt.S - TLB miss processing) or in places where it might not be
* safe to use a "tpa" instruction (mca_asm.S - error recovery).
*/
.section ".data..patch.vtop", "a" // declare section & section attributes
.previous
#define LOAD_PHYSICAL(pr, reg, obj) \
[1:](pr)movl reg = obj; \
.xdata4 ".data..patch.vtop", 1b-.
/*
* For now, we always put in the McKinley E9 workaround. On CPUs that don't need it,
* we'll patch out the work-around bundles with NOPs, so their impact is minimal.
*/
#define DO_MCKINLEY_E9_WORKAROUND
#ifdef DO_MCKINLEY_E9_WORKAROUND
.section ".data..patch.mckinley_e9", "a"
.previous
/* workaround for Itanium 2 Errata 9: */
# define FSYS_RETURN \
.xdata4 ".data..patch.mckinley_e9", 1f-.; \
1:{ .mib; \
nop.m 0; \
mov r16=ar.pfs; \
br.call.sptk.many b7=2f;; \
}; \
2:{ .mib; \
nop.m 0; \
mov ar.pfs=r16; \
br.ret.sptk.many b6;; \
}
#else
# define FSYS_RETURN br.ret.sptk.many b6
#endif
/*
* If physical stack register size is different from DEF_NUM_STACK_REG,
* dynamically patch the kernel for correct size.
*/
.section ".data..patch.phys_stack_reg", "a"
.previous
#define LOAD_PHYS_STACK_REG_SIZE(reg) \
[1:] adds reg=IA64_NUM_PHYS_STACK_REG*8+8,r0; \
.xdata4 ".data..patch.phys_stack_reg", 1b-.
/*
* Up until early 2004, use of .align within a function caused bad unwind info.
* TEXT_ALIGN(n) expands into ".align n" if a fixed GAS is available or into nothing
* otherwise.
*/
#ifdef HAVE_WORKING_TEXT_ALIGN
# define TEXT_ALIGN(n) .align n
#else
# define TEXT_ALIGN(n)
#endif
#ifdef HAVE_SERIALIZE_DIRECTIVE
# define dv_serialize_data .serialize.data
# define dv_serialize_instruction .serialize.instruction
#else
# define dv_serialize_data
# define dv_serialize_instruction
#endif
#endif /* _ASM_IA64_ASMMACRO_H */
arch/ia64/include/asm/atomic.h deleted 100644 → 0
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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_IA64_ATOMIC_H
#define _ASM_IA64_ATOMIC_H
/*
* Atomic operations that C can't guarantee us. Useful for
* resource counting etc..
*
* NOTE: don't mess with the types below! The "unsigned long" and
* "int" types were carefully placed so as to ensure proper operation
* of the macros.
*
* Copyright (C) 1998, 1999, 2002-2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
#include <linux/types.h>
#include <asm/intrinsics.h>
#include <asm/barrier.h>
#define ATOMIC64_INIT(i) { (i) }
#define arch_atomic_read(v) READ_ONCE((v)->counter)
#define arch_atomic64_read(v) READ_ONCE((v)->counter)
#define arch_atomic_set(v,i) WRITE_ONCE(((v)->counter), (i))
#define arch_atomic64_set(v,i) WRITE_ONCE(((v)->counter), (i))
#define ATOMIC_OP(op, c_op) \
static __inline__ int \
ia64_atomic_##op (int i, atomic_t *v) \
{ \
__s32 old, new; \
CMPXCHG_BUGCHECK_DECL \
\
do { \
CMPXCHG_BUGCHECK(v); \
old = arch_atomic_read(v); \
new = old c_op i; \
} while (ia64_cmpxchg(acq, v, old, new, sizeof(atomic_t)) != old); \
return new; \
}
#define ATOMIC_FETCH_OP(op, c_op) \
static __inline__ int \
ia64_atomic_fetch_##op (int i, atomic_t *v) \
{ \
__s32 old, new; \
CMPXCHG_BUGCHECK_DECL \
\
do { \
CMPXCHG_BUGCHECK(v); \
old = arch_atomic_read(v); \
new = old c_op i; \
} while (ia64_cmpxchg(acq, v, old, new, sizeof(atomic_t)) != old); \
return old; \
}
#define ATOMIC_OPS(op, c_op) \
ATOMIC_OP(op, c_op) \
ATOMIC_FETCH_OP(op, c_op)
ATOMIC_OPS(add, +)
ATOMIC_OPS(sub, -)
#ifdef __OPTIMIZE__
#define __ia64_atomic_const(i) \
static const int __ia64_atomic_p = __builtin_constant_p(i) ? \
((i) == 1 || (i) == 4 || (i) == 8 || (i) == 16 || \
(i) == -1 || (i) == -4 || (i) == -8 || (i) == -16) : 0;\
__ia64_atomic_p
#else
#define __ia64_atomic_const(i) 0
#endif
#define arch_atomic_add_return(i,v) \
({ \
int __ia64_aar_i = (i); \
__ia64_atomic_const(i) \
? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter) \
: ia64_atomic_add(__ia64_aar_i, v); \
})
#define arch_atomic_sub_return(i,v) \
({ \
int __ia64_asr_i = (i); \
__ia64_atomic_const(i) \
? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter) \
: ia64_atomic_sub(__ia64_asr_i, v); \
})
#define arch_atomic_fetch_add(i,v) \
({ \
int __ia64_aar_i = (i); \
__ia64_atomic_const(i) \
? ia64_fetchadd(__ia64_aar_i, &(v)->counter, acq) \
: ia64_atomic_fetch_add(__ia64_aar_i, v); \
})
#define arch_atomic_fetch_sub(i,v) \
({ \
int __ia64_asr_i = (i); \
__ia64_atomic_const(i) \
? ia64_fetchadd(-__ia64_asr_i, &(v)->counter, acq) \
: ia64_atomic_fetch_sub(__ia64_asr_i, v); \
})
ATOMIC_FETCH_OP(and, &)
ATOMIC_FETCH_OP(or, |)
ATOMIC_FETCH_OP(xor, ^)
#define arch_atomic_and(i,v) (void)ia64_atomic_fetch_and(i,v)
#define arch_atomic_or(i,v) (void)ia64_atomic_fetch_or(i,v)
#define arch_atomic_xor(i,v) (void)ia64_atomic_fetch_xor(i,v)
#define arch_atomic_fetch_and(i,v) ia64_atomic_fetch_and(i,v)
#define arch_atomic_fetch_or(i,v) ia64_atomic_fetch_or(i,v)
#define arch_atomic_fetch_xor(i,v) ia64_atomic_fetch_xor(i,v)
#undef ATOMIC_OPS
#undef ATOMIC_FETCH_OP
#undef ATOMIC_OP
#define ATOMIC64_OP(op, c_op) \
static __inline__ s64 \
ia64_atomic64_##op (s64 i, atomic64_t *v) \
{ \
s64 old, new; \
CMPXCHG_BUGCHECK_DECL \
\
do { \
CMPXCHG_BUGCHECK(v); \
old = arch_atomic64_read(v); \
new = old c_op i; \
} while (ia64_cmpxchg(acq, v, old, new, sizeof(atomic64_t)) != old); \
return new; \
}
#define ATOMIC64_FETCH_OP(op, c_op) \
static __inline__ s64 \
ia64_atomic64_fetch_##op (s64 i, atomic64_t *v) \
{ \
s64 old, new; \
CMPXCHG_BUGCHECK_DECL \
\
do { \
CMPXCHG_BUGCHECK(v); \
old = arch_atomic64_read(v); \
new = old c_op i; \
} while (ia64_cmpxchg(acq, v, old, new, sizeof(atomic64_t)) != old); \
return old; \
}
#define ATOMIC64_OPS(op, c_op) \
ATOMIC64_OP(op, c_op) \
ATOMIC64_FETCH_OP(op, c_op)
ATOMIC64_OPS(add, +)
ATOMIC64_OPS(sub, -)
#define arch_atomic64_add_return(i,v) \
({ \
s64 __ia64_aar_i = (i); \
__ia64_atomic_const(i) \
? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter) \
: ia64_atomic64_add(__ia64_aar_i, v); \
})
#define arch_atomic64_sub_return(i,v) \
({ \
s64 __ia64_asr_i = (i); \
__ia64_atomic_const(i) \
? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter) \
: ia64_atomic64_sub(__ia64_asr_i, v); \
})
#define arch_atomic64_fetch_add(i,v) \
({ \
s64 __ia64_aar_i = (i); \
__ia64_atomic_const(i) \
? ia64_fetchadd(__ia64_aar_i, &(v)->counter, acq) \
: ia64_atomic64_fetch_add(__ia64_aar_i, v); \
})
#define arch_atomic64_fetch_sub(i,v) \
({ \
s64 __ia64_asr_i = (i); \
__ia64_atomic_const(i) \
? ia64_fetchadd(-__ia64_asr_i, &(v)->counter, acq) \
: ia64_atomic64_fetch_sub(__ia64_asr_i, v); \
})
ATOMIC64_FETCH_OP(and, &)
ATOMIC64_FETCH_OP(or, |)
ATOMIC64_FETCH_OP(xor, ^)
#define arch_atomic64_and(i,v) (void)ia64_atomic64_fetch_and(i,v)
#define arch_atomic64_or(i,v) (void)ia64_atomic64_fetch_or(i,v)
#define arch_atomic64_xor(i,v) (void)ia64_atomic64_fetch_xor(i,v)
#define arch_atomic64_fetch_and(i,v) ia64_atomic64_fetch_and(i,v)
#define arch_atomic64_fetch_or(i,v) ia64_atomic64_fetch_or(i,v)
#define arch_atomic64_fetch_xor(i,v) ia64_atomic64_fetch_xor(i,v)
#undef ATOMIC64_OPS
#undef ATOMIC64_FETCH_OP
#undef ATOMIC64_OP
#define arch_atomic_add(i,v) (void)arch_atomic_add_return((i), (v))
#define arch_atomic_sub(i,v) (void)arch_atomic_sub_return((i), (v))
#define arch_atomic64_add(i,v) (void)arch_atomic64_add_return((i), (v))
#define arch_atomic64_sub(i,v) (void)arch_atomic64_sub_return((i), (v))
#endif /* _ASM_IA64_ATOMIC_H */
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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Memory barrier definitions. This is based on information published
* in the Processor Abstraction Layer and the System Abstraction Layer
* manual.
*
* Copyright (C) 1998-2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
* Copyright (C) 1999 Asit Mallick <asit.k.mallick@intel.com>
* Copyright (C) 1999 Don Dugger <don.dugger@intel.com>
*/
#ifndef _ASM_IA64_BARRIER_H
#define _ASM_IA64_BARRIER_H
#include <linux/compiler.h>
/*
* Macros to force memory ordering. In these descriptions, "previous"
* and "subsequent" refer to program order; "visible" means that all
* architecturally visible effects of a memory access have occurred
* (at a minimum, this means the memory has been read or written).
*
* wmb(): Guarantees that all preceding stores to memory-
* like regions are visible before any subsequent
* stores and that all following stores will be
* visible only after all previous stores.
* rmb(): Like wmb(), but for reads.
* mb(): wmb()/rmb() combo, i.e., all previous memory
* accesses are visible before all subsequent
* accesses and vice versa. This is also known as
* a "fence."
*
* Note: "mb()" and its variants cannot be used as a fence to order
* accesses to memory mapped I/O registers. For that, mf.a needs to
* be used. However, we don't want to always use mf.a because (a)
* it's (presumably) much slower than mf and (b) mf.a is supported for
* sequential memory pages only.
*/
#define mb() ia64_mf()
#define rmb() mb()
#define wmb() mb()
#define dma_rmb() mb()
#define dma_wmb() mb()
# define __smp_mb() mb()
#define __smp_mb__before_atomic() barrier()
#define __smp_mb__after_atomic() barrier()
/*
* IA64 GCC turns volatile stores into st.rel and volatile loads into ld.acq no
* need for asm trickery!
*/
#define __smp_store_release(p, v) \
do { \
compiletime_assert_atomic_type(*p); \
barrier(); \
WRITE_ONCE(*p, v); \
} while (0)
#define __smp_load_acquire(p) \
({ \
typeof(*p) ___p1 = READ_ONCE(*p); \
compiletime_assert_atomic_type(*p); \
barrier(); \
___p1; \
})
/*
* The group barrier in front of the rsm & ssm are necessary to ensure
* that none of the previous instructions in the same group are
* affected by the rsm/ssm.
*/
#include <asm-generic/barrier.h>
#endif /* _ASM_IA64_BARRIER_H */
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