11 Jan, 2012
1 commit
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lib: use generic pci_iomap on all architectures
Many architectures don't want to pull in iomap.c,
so they ended up duplicating pci_iomap from that file.
That function isn't trivial, and we are going to modify it
https://lkml.org/lkml/2011/11/14/183
so the duplication hurts.This reduces the scope of the problem significantly,
by moving pci_iomap to a separate file and
referencing that from all architectures.* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
alpha: drop pci_iomap/pci_iounmap from pci-noop.c
mn10300: switch to GENERIC_PCI_IOMAP
mn10300: add missing __iomap markers
frv: switch to GENERIC_PCI_IOMAP
tile: switch to GENERIC_PCI_IOMAP
tile: don't panic on iomap
sparc: switch to GENERIC_PCI_IOMAP
sh: switch to GENERIC_PCI_IOMAP
powerpc: switch to GENERIC_PCI_IOMAP
parisc: switch to GENERIC_PCI_IOMAP
mips: switch to GENERIC_PCI_IOMAP
microblaze: switch to GENERIC_PCI_IOMAP
arm: switch to GENERIC_PCI_IOMAP
alpha: switch to GENERIC_PCI_IOMAP
lib: add GENERIC_PCI_IOMAP
lib: move GENERIC_IOMAP to lib/KconfigFix up trivial conflicts due to changes nearby in arch/{m68k,score}/Kconfig
09 Dec, 2011
2 commits
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Now all ARCH_POPULATES_NODE_MAP archs select HAVE_MEBLOCK_NODE_MAP -
there's no user of early_node_map[] left. Kill early_node_map[] and
replace ARCH_POPULATES_NODE_MAP with HAVE_MEMBLOCK_NODE_MAP. Also,
relocate for_each_mem_pfn_range() and helper from mm.h to memblock.h
as page_alloc.c would no longer host an alternative implementation.This change is ultimately one to one mapping and shouldn't cause any
observable difference; however, after the recent changes, there are
some functions which now would fit memblock.c better than page_alloc.c
and dependency on HAVE_MEMBLOCK_NODE_MAP instead of HAVE_MEMBLOCK
doesn't make much sense on some of them. Further cleanups for
functions inside HAVE_MEMBLOCK_NODE_MAP in mm.h would be nice.-v2: Fix compile bug introduced by mis-spelling
CONFIG_HAVE_MEMBLOCK_NODE_MAP to CONFIG_MEMBLOCK_HAVE_NODE_MAP in
mmzone.h. Reported by Stephen Rothwell.Signed-off-by: Tejun Heo
Cc: Stephen Rothwell
Cc: Benjamin Herrenschmidt
Cc: Yinghai Lu
Cc: Tony Luck
Cc: Ralf Baechle
Cc: Martin Schwidefsky
Cc: Chen Liqin
Cc: Paul Mundt
Cc: "David S. Miller"
Cc: "H. Peter Anvin" -
ia64 used early_node_map[] just to prime free_area_init_nodes(). Now
memblock can be used for the same purpose and early_node_map[] is
scheduled to be dropped. Use memblock instead.Signed-off-by: Tejun Heo
Cc: Benjamin Herrenschmidt
Cc: Yinghai Lu
Cc: Tony Luck
Cc: Fenghua Yu
Cc: linux-ia64@vger.kernel.org
25 Nov, 2011
1 commit
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define GENERIC_IOMAP in a central location
instead of all architectures. This will be helpful
for the follow-up patch which makes it select
other configs. Code is also a bit shorter this way.Signed-off-by: Michael S. Tsirkin
03 Nov, 2011
1 commit
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* 'misc-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
MAINTAINERS: Update entry for IA64
[IA64] gpio: GENERIC_GPIO default must be n
[IA64[ add CONFIG_NET_VENDOR_INTEL=y to default config files where needed
[IA64] agp/hp-agp: Allow binding user memory to the AGP GART
[IA64] sn2: add missing put_cpu()
02 Sep, 2011
1 commit
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Since GPIOLIB is optional on ia64, GENERIC_GPIO must not be selected by
default. If GPIOLIB is enabled, it will select GENERIC_GPIO.Signed-off-by: Ben Hutchings
Signed-off-by: Tony Luck
10 Aug, 2011
1 commit
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Link errors:
arch/ia64/kernel/built-in.o: In function `arch_setup_dmar_msi':
(.text+0x35972): undefined reference to `dmar_msi_write'
... and more ...because allnoconfig has CONFIG_DMAR=y due to the "select DMAR"
in arch/ia64/Kconfig under config IA64_GENERIC.Drop that select, but add CONFIG_DMAR=y to generic_defconfig so
we keep testbuilding the DMAR code.Signed-off-by: Tony Luck
03 Aug, 2011
2 commits
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Some trivial conflicts due to other various merges
adding to the end of common lists sooner than this one.arch/ia64/Kconfig
arch/powerpc/Kconfig
arch/x86/Kconfig
lib/Kconfig
lib/MakefileSigned-off-by: Len Brown
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cmpxchg() is widely used by lockless code, including NMI-safe lockless
code. But on some architectures, the cmpxchg() implementation is not
NMI-safe, on these architectures the lockless code may need a
spin_trylock_irqsave() based implementation.This patch adds a Kconfig option: ARCH_HAVE_NMI_SAFE_CMPXCHG, so that
NMI-safe lockless code can depend on it or provide different
implementation according to it.On many architectures, cmpxchg is only NMI-safe for several specific
operand sizes. So, ARCH_HAVE_NMI_SAFE_CMPXCHG define in this patch
only guarantees cmpxchg is NMI-safe for sizeof(unsigned long).Signed-off-by: Huang Ying
Acked-by: Mike Frysinger
Acked-by: Paul Mundt
Acked-by: Hans-Christian Egtvedt
Acked-by: Benjamin Herrenschmidt
Acked-by: Chris Metcalf
Acked-by: Richard Henderson
CC: Mikael Starvik
Acked-by: David Howells
CC: Yoshinori Sato
CC: Tony Luck
CC: Hirokazu Takata
CC: Geert Uytterhoeven
CC: Michal Simek
Acked-by: Ralf Baechle
CC: Kyle McMartin
CC: Martin Schwidefsky
CC: Chen Liqin
CC: "David S. Miller"
CC: Ingo Molnar
CC: Chris Zankel
Signed-off-by: Len Brown
02 Aug, 2011
1 commit
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* 'gpiolib' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Hook up gpiolib support
23 Jul, 2011
1 commit
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* 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86-64, vdso: Do not allocate memory for the vDSO
clocksource: Change __ARCH_HAS_CLOCKSOURCE_DATA to a CONFIG option
x86, vdso: Drop now wrong comment
Document the vDSO and add a reference parser
ia64: Replace clocksource.fsys_mmio with generic arch data
x86-64: Move vread_tsc and vread_hpet into the vDSO
clocksource: Replace vread with generic arch data
x86-64: Add --no-undefined to vDSO build
x86-64: Allow alternative patching in the vDSO
x86: Make alternative instruction pointers relative
x86-64: Improve vsyscall emulation CS and RIP handling
x86-64: Emulate legacy vsyscalls
x86-64: Fill unused parts of the vsyscall page with 0xcc
x86-64: Remove vsyscall number 3 (venosys)
x86-64: Map the HPET NX
x86-64: Remove kernel.vsyscall64 sysctl
x86-64: Give vvars their own page
x86-64: Document some of entry_64.S
x86-64: Fix alignment of jiffies variable
22 Jul, 2011
1 commit
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The machinery for __ARCH_HAS_CLOCKSOURCE_DATA assumed a file in
asm-generic would be the default for architectures without their own
file in asm/, but that is not how it works.Replace it with a Kconfig option instead.
Link: http://lkml.kernel.org/r/4E288AA6.7090804@zytor.com
Signed-off-by: H. Peter Anvin
Cc: Andy Lutomirski
Cc: Arnd Bergmann
Cc: Tony Luck
21 Jun, 2011
1 commit
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This should ease finding similarities with different platforms,
with the intention of solving problems once in a generic framework
which everyone can use.Note: to move intel-iommu.c, the declaration of pci_find_upstream_pcie_bridge()
has to move from drivers/pci/pci.h to include/linux/pci.h. This is handled
in this patch, too.As suggested, also drop DMAR's EXPERIMENTAL tag while we're at it.
Compile-tested on x86_64.
Signed-off-by: Ohad Ben-Cohen
Signed-off-by: Joerg Roedel
14 Jun, 2011
1 commit
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Create a dedicated folder for iommu drivers, and move the base
iommu implementation over there.Grouping the various iommu drivers in a single location will help
finding similar problems shared by different platforms, so they
could be solved once, in the iommu framework, instead of solved
differently (or duplicated) in each driver.Signed-off-by: Ohad Ben-Cohen
Signed-off-by: Joerg Roedel
02 Jun, 2011
1 commit
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Allow people to use gpiolib on ia64, mostly for build coverage as it
seems more useful to standardise on availablity of the API than handle
it being optional.Signed-off-by: Mark Brown
Signed-off-by: Tony Luck
27 May, 2011
1 commit
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By the previous style change, CONFIG_GENERIC_FIND_NEXT_BIT,
CONFIG_GENERIC_FIND_BIT_LE, and CONFIG_GENERIC_FIND_LAST_BIT are not used
to test for existence of find bitops anymore.Signed-off-by: Akinobu Mita
Acked-by: Greg Ungerer
Cc: Arnd Bergmann
Cc: Russell King
Cc: Martin Schwidefsky
Cc: Heiko Carstens
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
31 Mar, 2011
1 commit
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Fixes generated by 'codespell' and manually reviewed.
Signed-off-by: Lucas De Marchi
29 Mar, 2011
1 commit
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Signed-off-by: Thomas Gleixner
21 Jan, 2011
2 commits
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No functional change.
Signed-off-by: Thomas Gleixner
Acked-by: Tony Luck -
All architectures are finally converted. Remove the cruft.
Signed-off-by: Thomas Gleixner
Cc: Richard Henderson
Cc: Mike Frysinger
Cc: David Howells
Cc: Tony Luck
Cc: Greg Ungerer
Cc: Michal Simek
Acked-by: David Howells
Cc: Kyle McMartin
Acked-by: Benjamin Herrenschmidt
Cc: Chen Liqin
Cc: "David S. Miller"
Cc: Chris Metcalf
Cc: Jeff Dike
29 Oct, 2010
1 commit
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* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (38 commits)
kbuild: convert `arch/tile' to the kconfig mainmenu upgrade
README: cite nconfig
Revert "kconfig: Temporarily disable dependency warnings"
kconfig: Use PATH_MAX instead of 128 for path buffer sizes.
kconfig: Fix realloc usage()
kconfig: Propagate const
kconfig: Don't go out from read config loop when you read new symbol
kconfig: fix menuconfig on debian lenny
kbuild: migrate all arch to the kconfig mainmenu upgrade
kconfig: expand file names
kconfig: use the file's name of sourced file
kconfig: constify file name
kconfig: don't emit warning upon rootmenu's prompt redefinition
kconfig: replace KERNELVERSION usage by the mainmenu's prompt
kconfig: delay gconf window initialization
kconfig: expand by default the rootmenu's prompt
kconfig: add a symbol string expansion helper
kconfig: regen parser
kconfig: implement the `mainmenu' directive
kconfig: allow PACKAGE to be defined on the compiler's command-line
...Fix up trivial conflict in arch/mn10300/Kconfig
13 Oct, 2010
1 commit
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…ixes', 'optimize-unwind', 'remove-compat-h' and 'stack_trace' into release
12 Oct, 2010
1 commit
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We need to revert the temporary hack in 71ebc01, hence the merge.
02 Oct, 2010
1 commit
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Signed-off-by: FUJITA Tomonori
Signed-off-by: Andrew Morton
Signed-off-by: Tony Luck
28 Sep, 2010
1 commit
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Thomas Gleixner wrote:
>__do_IRQ() has been deprecated after a two years migration phase in
>commit 0e57aa1. Since then another 18 months have gone by ...Mostly trivial stuff for this. The only tricky part was realizing
that the new handler_*_irq() paths do not use desc->chip->end(irq).
Not a problem for the edge case as the ia64 iosapic routine for
that was nop(). But the "level" case handled interrupt migration
there. Just use a slightly modified version of the "end" routine
as "unmask" for the level triggered case.Signed-off-by: Tony Luck
24 Sep, 2010
1 commit
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Several Linux features are dependent on stack trace support. Add
it so they can be enabled.Signed-off-by: Tony Luck
20 Sep, 2010
1 commit
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Signed-off-by: Arnaud Lacombe
Reviewed-by: Sam Ravnborg
Reviewed-by: Michal Marek
10 Aug, 2010
1 commit
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Define stubs for the numa_*_id() generic percpu related functions for
non-NUMA configurations in where the other
non-numa stubs live.Fixes ia64 !NUMA build breakage -- e.g., tiger_defconfig
Back out now unneeded '#ifndef CONFIG_NUMA' guards from ia64 smpboot.c
Signed-off-by: Lee Schermerhorn
Tested-by: Tony Luck
Acked-by: Tony Luck
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
27 Jul, 2010
1 commit
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Now that all arches have been converted over to use generic time via
clocksources or arch_gettimeoffset(), we can remove the GENERIC_TIME
config option and simplify the generic code.Signed-off-by: John Stultz
LKML-Reference:
Signed-off-by: Thomas Gleixner
28 May, 2010
3 commits
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Enable 'HAVE_MEMORYLESS_NODES' by default when NUMA configured on ia64.
Initialize percpu 'numa_mem' variable when starting secondary cpus.
Generic initialization will handle the boot cpu.Nothing uses 'numa_mem_id()' yet. Subsequent patch with modify slab to
use this.Signed-off-by: Lee Schermerhorn
Cc: Tejun Heo
Cc: Mel Gorman
Cc: Christoph Lameter
Cc: Nick Piggin
Cc: David Rientjes
Cc: Eric Whitney
Cc: KAMEZAWA Hiroyuki
Cc: Ingo Molnar
Cc: Thomas Gleixner
Cc: "H. Peter Anvin"
Cc: "Luck, Tony"
Cc: Pekka Enberg
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
ia64: Use generic percpu implementation of numa_node_id()
+ intialize per cpu 'numa_node'
+ remove ia64 cpu_to_node() macro; use generic
+ define CONFIG_USE_PERCPU_NUMA_NODE_ID when NUMA configuredSigned-off-by: Lee Schermerhorn
Reviewed-by: Christoph Lameter
Cc: Tejun Heo
Cc: Mel Gorman
Cc: Christoph Lameter
Cc: Nick Piggin
Cc: David Rientjes
Cc: Eric Whitney
Cc: KAMEZAWA Hiroyuki
Cc: Ingo Molnar
Cc: Thomas Gleixner
Cc: "H. Peter Anvin"
Cc: "Luck, Tony"
Cc: Pekka Enberg
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
There are only two ways to define sg_dma_len(); use sg->dma_length or
sg->length. This patch introduces NEED_SG_DMA_LENGTH that enables
architectures to choose sg->dma_length or sg->length.Signed-off-by: FUJITA Tomonori
Cc: Arnd Bergmann
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Cc: Matt Turner
Cc: Russell King
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Ingo Molnar
Cc: Thomas Gleixner
Cc: "H. Peter Anvin"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
19 May, 2010
1 commit
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One entry for this in arch/ia64/Kconfig should be enough.
Reported-by: Christoph Egger
Signed-off-by: Tony Luck
13 Mar, 2010
1 commit
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Signed-off-by: FUJITA Tomonori
Cc: Tony Luck
Cc: Jesse Barnes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
09 Feb, 2010
1 commit
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This has been broken since May 2008 when Al Viro killed altroot support.
Since nobody has complained, it would appear that there are no users of
this code (A plausible theory since the main OSVs that support ia64 prefer
to use the IA32-EL software emulation).Signed-off-by: Tony Luck
02 Oct, 2009
1 commit
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Unlike other archs, ia64 reserves space for percpu areas during early
memory initialization. These areas occupy a contiguous region indexed
by cpu number on contiguous memory model or are grouped by node on
discontiguous memory model.As allocation and initialization are done by the arch code, all that
setup_per_cpu_areas() needs to do is communicating the determined
layout to the percpu allocator. This patch implements
setup_per_cpu_areas() for both contig and discontig memory models and
drops HAVE_LEGACY_PER_CPU_AREA.Please note that for contig model, the allocation itself is modified
only to allocate for possible cpus instead of NR_CPUS. As dynamic
percpu allocator can handle non-direct mapping, there's no reason to
allocate memory for cpus which aren't possible.Signed-off-by: Tejun Heo
Acked-by: Tony Luck
Cc: Fenghua Yu
Cc: linux-ia64
25 Sep, 2009
1 commit
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Back in January 2008 Nick Piggin implemented "ticket" spinlocks
for X86 (See commit 314cdbefd1fd0a7acf3780e9628465b77ea6a836).IA64 implementation has a couple of differences because of the
available atomic operations ... e.g. we have no fetchadd2 instruction
that operates on a 16-bit quantity so we make ticket locks use
a 32-bit word for each of the current ticket and now-serving values.Performance on uncontended locks is about 8% worse than the previous
implementation, but this seems a good trade for determinism in the
contended case. Performance impact on macro-level benchmarks is in
the noise.Signed-off-by: Tony Luck
23 Sep, 2009
1 commit
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Some 64bit arch has special segment for mapping kernel text. It should be
entried to /proc/kcore in addtion to direct-linear-map, vmalloc area.
This patch unifies KCORE_TEXT entry scattered under x86 and ia64.I'm not familiar with other archs (mips has its own even after this patch)
but range of [_stext ..._end) is a valid area of text and it's not in
direct-map area, defining CONFIG_ARCH_PROC_KCORE_TEXT is only a necessary
thing to do.Note: I left mips as it is now.
Signed-off-by: KAMEZAWA Hiroyuki
Cc: Ralf Baechle
Cc: Benjamin Herrenschmidt
Cc: WANG Cong
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
16 Sep, 2009
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (46 commits)
powerpc64: convert to dynamic percpu allocator
sparc64: use embedding percpu first chunk allocator
percpu: kill lpage first chunk allocator
x86,percpu: use embedding for 64bit NUMA and page for 32bit NUMA
percpu: update embedding first chunk allocator to handle sparse units
percpu: use group information to allocate vmap areas sparsely
vmalloc: implement pcpu_get_vm_areas()
vmalloc: separate out insert_vmalloc_vm()
percpu: add chunk->base_addr
percpu: add pcpu_unit_offsets[]
percpu: introduce pcpu_alloc_info and pcpu_group_info
percpu: move pcpu_lpage_build_unit_map() and pcpul_lpage_dump_cfg() upward
percpu: add @align to pcpu_fc_alloc_fn_t
percpu: make @dyn_size mandatory for pcpu_setup_first_chunk()
percpu: drop @static_size from first chunk allocators
percpu: generalize first chunk allocator selection
percpu: build first chunk allocators selectively
percpu: rename 4k first chunk allocator to page
percpu: improve boot messages
percpu: fix pcpu_reclaim() locking
...Fix trivial conflict as by Tejun Heo in kernel/sched.c
27 Aug, 2009
1 commit
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Only IA64 was using PG_uncached as of now. We now intend to use this bit
in x86 as well, to keep track of memory type of those addresses that
have page struct for them. So, generalize the use of that bit across
ia64 and x86.Signed-off-by: Venkatesh Pallipadi
Signed-off-by: Suresh Siddha
Signed-off-by: H. Peter Anvin
