17 Oct, 2007
3 commits
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Equip IA64 sparsemem with a virtual memmap. This is similar to the existing
CONFIG_VIRTUAL_MEM_MAP functionality for DISCONTIGMEM. It uses a PAGE_SIZE
mapping.This is provided as a minimally intrusive solution. We split the 128TB
VMALLOC area into two 64TB areas and use one for the virtual memmap.This should replace CONFIG_VIRTUAL_MEM_MAP long term.
[apw@shadowen.org: convert to new helper based initialisation]
Signed-off-by: Christoph Lameter
Signed-off-by: Andy Whitcroft
Acked-by: Mel Gorman
Cc: "Luck, Tony"
Cc: KAMEZAWA Hiroyuki
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
x86(-64) are the last architectures still using the page fault notifier
cruft for the kprobes page fault hook. This patch converts them to the
proper direct calls, and removes the now unused pagefault notifier bits
aswell as the cruft in kprobes.c that was related to this mess.I know Andi didn't really like this, but all other architecture maintainers
agreed the direct calls are much better and besides the obvious cruft
removal a common way of dealing with kprobes across architectures is
important aswell.[akpm@linux-foundation.org: build fix]
[akpm@linux-foundation.org: fix sparc64]
Signed-off-by: Christoph Hellwig
Cc: Andi Kleen
Cc:
Cc: Prasanna S Panchamukhi
Cc: Ananth N Mavinakayanahalli
Cc: Anil S Keshavamurthy
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Convert cpu_sibling_map from a static array sized by NR_CPUS to a per_cpu
variable. This saves sizeof(cpumask_t) * NR unused cpus. Access is mostly
from startup and CPU HOTPLUG functions.Signed-off-by: Mike Travis
Cc: Andi Kleen
Cc: Christoph Lameter
Cc: "Siddha, Suresh B"
Cc: "David S. Miller"
Cc: Paul Mackerras
Cc: Benjamin Herrenschmidt
Cc: "Luck, Tony"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
16 Oct, 2007
1 commit
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include/scsi/scsi_eh.h:79: error: field `sense_sgl' has incomplete type
x86 resolves this by including scatterlist.h from dma-mapping.h which
seems as good a place as any.Signed-off-by: Tony Luck
13 Oct, 2007
2 commits
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Fix the problem that kdump on INIT causes a kernel panic if kdump
kernel image is not configured. The cause of this problem is
machine_kexec_on_init() is using printk in INIT context. It should
use ia64_mca_printk() instead.Signed-off-by: Kenji Kaneshige
Signed-off-by: Tony Luck -
SAL_CALL() always calls through the ia64_sal function pointer. I am adding
new functionality that needs the same conventions as SAL_CALL (FP regs
saved/restored, sal_lock acquired, etc), but doesn't use the ia64_sal
function pointer.This patch pulls the body of SAL_CALL out into a new "IA64_FW_CALL" that
takes care of these calling conventions, but allows the caller to specify
either ia64_sal or some other firmware entry point.Signed-off-by: Bjorn Helgaas
Signed-off-by: Len Brown
Signed-off-by: Tony Luck
01 Sep, 2007
3 commits
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After my last patch we have a new header file for HP simulator use.
Here's code to use it for stuff that used to have `extern' statements
inline in the code. Functionality should not change with this patch.Signed-off-by: Peter Chubb
Signed-off-by: Tony Luck -
This patch cleans up the `enable early console for SKI' patch
(471e7a44848f467c9b83adc3463d019d2fa8817f), and
1. potentially allows the gensparse_defconfig to work again.
(there are other problems running a generic kernel on Ski)
2. fixes the `console registered twice' problem.
3. Cleans up the code by moving the `extern hpsim_cons' declaration to
a new asm/hpsim.h file.Thanks to Jes for comments.
Signed-off-by: Peter Chubb
Signed-off-by: Tony Luck -
Add additional support for CPU disable on SN platforms.
Correctly setup the smp_affinity mask for I/O error IRQs.
Restrict the use of the feature to Altix 4000 and 450 systems
running with a CPU disable capable PROM, and do not allow disabling
of CPU 0.Signed-off-by: John Keller
Signed-off-by: Tony Luck
14 Aug, 2007
2 commits
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Add base support for implementing platform_irq_to_vector(), and
then use it on SN2.Signed-off-by: Kenji Kaneshige
Acked-by: John Keller
Signed-off-by: Tony Luck -
The routines ia64_atomic64_{add,sub} mistakenly use
atomic_read() to grab the old value instead of using
atomic64_read().Signed-off-by: Andreas Schwab
Signed-off-by: Tony Luck
01 Aug, 2007
1 commit
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Remove unused TIF_NOTIFY_RESUME flag for all processor architectures. The
flag was not used excecpt on IA-64 where the patch replaces it with
TIF_PERFMON_WORK.Signed-off-by: stephane eranian
Cc:
Cc: "Luck, Tony"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 Jul, 2007
4 commits
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* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Nail two more simple section mismatch errors
[IA64] fix section mismatch warnings
[IA64] rename partial_page
[IA64] Ensure that machvec is set up takes place before serial console
[IA64] vector-domain - fix vector_table
[IA64] vector-domain - handle assign_irq_vector(AUTO_ASSIGN) -
In 741f98fe298a73c9d47ed53703c1279a29718581 Sam added full
checking across the entire vmlinux image. This flushed out
a dozen new section mismatch warnings. Start the whack-a-mole
game again to stomp them out.Signed-off-by: Tony Luck
-
Jens has added a partial_page thing in splice whcih conflicts with the ia64
one. Rename ia64 out of the way. (ia64 chose poorly).Signed-off-by: Andrew Morton
Signed-off-by: Tony Luck -
Parse the machvec command line option outside of the early_param()
so that ia64_mv is set before any console intialisation that
may result from early_param parsing.Signed-off-by: Simon Horman
Signed-off-by: Tony Luck
25 Jul, 2007
1 commit
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As it was a synonym for (CONFIG_ACPI && CONFIG_X86),
the ifdefs for it were more clutter than they were worth.For ia64, just add a few stubs in anticipation of future
S3 or S4 support.Signed-off-by: Len Brown
23 Jul, 2007
1 commit
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Now that the last inlined instances are gone, all that is left to do
is turning disable_irq_nosync on arm26 and m68k from defines to aliases
and we are all set - we can make these externs in linux/interrupt.h
uncoditional and kill remaining instances in asm/irq.hSigned-off-by: Al Viro
Signed-off-by: Linus Torvalds
21 Jul, 2007
2 commits
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* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Prevent people from directly including .
[IA64] remove time interpolator
[IA64] Convert to generic timekeeping/clocksource
[IA64] refresh some config files for 64K pagesize
[IA64] Delete iosapic_free_rte()
[IA64] fallocate system call
[IA64] Enable percpu vector domain for IA64_DIG
[IA64] Enable percpu vector domain for IA64_GENERIC
[IA64] Support irq migration across domain
[IA64] Add support for vector domain
[IA64] Add mapping table between irq and vector
[IA64] Check if irq is sharable
[IA64] Fix invalid irq vector assumption for iosapic
[IA64] Use dynamic irq for iosapic interrupts
[IA64] Use per iosapic lock for indirect iosapic register access
[IA64] Cleanup lock order in iosapic_register_intr
[IA64] Remove duplicated members in iosapic_rte_info
[IA64] Remove block structure for locking in iosapic.c -
Signed-off-by: Robert P. J. Day
Signed-off-by: Tony Luck
20 Jul, 2007
7 commits
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sys_fallocate for ia64. This uses an empty slot #1303 erroneously
marked as reserved for move_pages (which had already been allocated
as syscall #1276)Signed-Off-By: Dave Chinner
Signed-off-by: Tony Luck -
Since Ingo's recent scheduler rewrite which was merged as commit
0437e109e1841607f2988891eaa36c531c6aa6ac sched_cacheflush is unused.Signed-off-by: Ralf Baechle
Signed-off-by: Ingo Molnar -
This patch changes mm_struct.dumpable to a pair of bit flags.
set_dumpable() converts three-value dumpable to two flags and stores it into
lower two bits of mm_struct.flags instead of mm_struct.dumpable.
get_dumpable() behaves in the opposite way.[akpm@linux-foundation.org: export set_dumpable]
Signed-off-by: Hidehiro Kawai
Cc: Alan Cox
Cc: David Howells
Cc: Hugh Dickins
Cc: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
New arch macro STACK_TOP_MAX it gives the larges valid stack address for the
architecture in question.It differs from STACK_TOP in that it will not distinguish between
personalities but will always return the largest possible address.This is used to create the initial stack on execve, which we will move down to
the proper location once the binfmt code has figured out where that is.Signed-off-by: Peter Zijlstra
Signed-off-by: Ollie Wild
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
per cpu data section contains two types of data. One set which is
exclusively accessed by the local cpu and the other set which is per cpu,
but also shared by remote cpus. In the current kernel, these two sets are
not clearely separated out. This can potentially cause the same data
cacheline shared between the two sets of data, which will result in
unnecessary bouncing of the cacheline between cpus.One way to fix the problem is to cacheline align the remotely accessed per
cpu data, both at the beginning and at the end. Because of the padding at
both ends, this will likely cause some memory wastage and also the
interface to achieve this is not clean.This patch:
Moves the remotely accessed per cpu data (which is currently marked
as ____cacheline_aligned_in_smp) into a different section, where all the data
elements are cacheline aligned. And as such, this differentiates the local
only data and remotely accessed data cleanly.Signed-off-by: Fenghua Yu
Acked-by: Suresh Siddha
Cc: Rusty Russell
Cc: Christoph Lameter
Cc:
Cc: "Luck, Tony"
Cc: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
AFAICT now that jprobe.entry is a void *, JPROBE_ENTRY doesn't do anything
useful - so remove it ..I've left a do-nothing version so that out-of-tree jprobes code will still
compile without modifications.Signed-off-by: Michael Ellerman
Cc: Prasanna S Panchamukhi
Acked-by: Ananth N Mavinakayanahalli
Cc: Anil S Keshavamurthy
Cc: David S. Miller
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
18 Jul, 2007
10 commits
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* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Clean away some code inside some non-existent CONFIG ifdefs
[IA64] ar.itc access must really be after xtime_lock.sequence has been read
[IA64] correctly count CPU objects in the ia64/sn hwperf interface
[IA64] arbitary speed tty ioctl support
[IA64] use machvec=dig on hpzx1 platforms -
Add function helper, fb_is_primary_device(). Given struct fb_info, it will
return a nonzero value if the device is the primary display.Currently, only the i386 is supported where the function checks for the
IORESOURCE_ROM_SHADOW flag.Signed-off-by: Antonino Daplas
Cc: David Miller
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Move arch-specific bits of fb_mmap() to their respective subdirectories
[bob.picco@hp.com: efi_range_is_wc is referenced but not declared]
[bunk@stusta.de: fix include/asm-m68k/fb.h]
Signed-off-by: Antonino Daplas
Acked-by: David S. Miller
Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
It is often known at allocation time whether a page may be migrated or not.
This patch adds a flag called __GFP_MOVABLE and a new mask called
GFP_HIGH_MOVABLE. Allocations using the __GFP_MOVABLE can be either migrated
using the page migration mechanism or reclaimed by syncing with backing
storage and discarding.An API function very similar to alloc_zeroed_user_highpage() is added for
__GFP_MOVABLE allocations called alloc_zeroed_user_highpage_movable(). The
flags used by alloc_zeroed_user_highpage() are not changed because it would
change the semantics of an existing API. After this patch is applied there
are no in-kernel users of alloc_zeroed_user_highpage() so it probably should
be marked deprecated if this patch is merged.Note that this patch includes a minor cleanup to the use of __GFP_ZERO in
shmem.c to keep all flag modifications to inode->mapping in the
shmem_dir_alloc() helper function. This clean-up suggestion is courtesy of
Hugh Dickens.Additional credit goes to Christoph Lameter and Linus Torvalds for shaping the
concept. Credit to Hugh Dickens for catching issues with shmem swap vector
and ramfs allocations.[akpm@linux-foundation.org: build fix]
[hugh@veritas.com: __GFP_ZERO cleanup]
Signed-off-by: Mel Gorman
Cc: Andy Whitcroft
Cc: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Nobody is using ptep_test_and_clear_dirty and ptep_clear_flush_dirty. Remove
the functions from all architectures.Signed-off-by: Martin Schwidefsky
Cc: Hugh Dickins
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The last user of ptep_establish in mm/ is long gone. Remove the architecture
primitive as well.Signed-off-by: Martin Schwidefsky
Cc: Hugh Dickins
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add support for IRQ migration across vector domain.
Signed-off-by: Kenji Kaneshige
Signed-off-by: Yasuaki Ishimatsu
Signed-off-by: Tony Luck -
Add fundamental support for multiple vector domain. There still exists
only one vector domain even with this patch. IRQ migration across
domain is not supported yet by this patch.Signed-off-by: Kenji Kaneshige
Signed-off-by: Yasuaki Ishimatsu
Signed-off-by: Tony Luck -
Add mapping tables between irqs and vectors, and its management code.
This is necessary for supporting multiple vector domain because 1:1
mapping between irq and vector will be changed to n:1.The irq == vector relationship between irqs and vectors is explicitly
remained for percpu interrupts, platform interrupts, isa IRQs and
vectors assigned using assign_irq_vector() because some programs might
depend on it.And I should consider the following problem.
When pci drivers enabled/disabled devices dynamically, its irq number
is changed to the different one. Therefore, suspend/resume code may
happen problem.To fix this problem, I bound gsi to irq.
Signed-off-by: Kenji Kaneshige
Signed-off-by: Yasuaki Ishimatsu
Signed-off-by: Tony Luck -
Use per-iosapic lock for indirect iosapic register access. It reduces
lock contention.Signed-off-by: Kenji Kaneshige
Signed-off-by: Yasuaki Ishimatsu
Signed-off-by: Tony Luck
17 Jul, 2007
2 commits
-
One common problem with 32 bit system call and ioctl emulation is the
different alignment rules between i386 and 64 bit machines. A number of
drivers work around this by marking the compat structures as
'attribute((packed))', which is not the right solution because it breaks
all the non-x86 architectures that want to use the same compat code.Hopefully, this patch improves the situation, it introduces two new types,
compat_u64 and compat_s64. These are defined on all architectures to have
the same size and alignment as the 32 bit version of u64 and s64.Signed-off-by: Arnd Bergmann
Acked-by: David S. Miller
Cc: David Woodhouse
Cc: Andi Kleen
Cc: Benjamin Herrenschmidt
Cc: Vasily Tarasov
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Kill pte_rdprotect(), pte_exprotect(), pte_mkread(), pte_mkexec(), pte_read(),
pte_exec(), and pte_user() except where arch-specific code is making use of
them.Signed-off-by: Jan Beulich
Cc: Andi Kleen
Cc: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
14 Jul, 2007
1 commit
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Add the needed constants and defines to activate this for the IA64
platform.Signed-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Tony Luck
