| cdd4552686b5225047ce24b8449380e02c1481e1 |
|
24-Sep-2014 |
Paul Bolle <pebolle@tiscali.nl> |
ARC: Remove unneeded Kconfig entry NO_DMA
Architectures only need a Kconfig entry for NO_DMA if it is possible
that its value will be 'y'. For arc its value will always be 'n', making
it pointless. Remove it.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 1736a56f3d1d5765fa8953d39a900a494d7e415c |
|
08-Sep-2014 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: rename kconfig option for unaligned emulation
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| d7f8a085d4f48501b1fa253b48ec4ad7cb4d02cc |
|
10-Sep-2014 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: [plat*] move code out of .init_machine into common
All the platforms do the same thing in init_machine callback so move it
out of callback into caller of callback
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| ce816fa88cca083c47ab9000b2138a83043a78be |
|
08-Apr-2014 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP
If the renamed symbol is defined lib/iomap.c implements ioport_map and
ioport_unmap and currently (nearly) all platforms define the port
accessor functions outb/inb and friend unconditionally. So
HAS_IOPORT_MAP is the better name for this.
Consequently NO_IOPORT is renamed to NO_IOPORT_MAP.
The motivation for this change is to reintroduce a symbol HAS_IOPORT
that signals if outb/int et al are available. I will address that at
least one merge window later though to keep surprises to a minimum and
catch new introductions of (HAS|NO)_IOPORT.
The changes in this commit were done using:
$ git grep -l -E '(NO|HAS)_IOPORT' | xargs perl -p -i -e 's/\b((?:CONFIG_)?(?:NO|HAS)_IOPORT)\b/$1_MAP/'
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| c7dcec7dd463907c451048b04f30d1870fe5cacc |
|
11-Feb-2014 |
Paul Bolle <pebolle@tiscali.nl> |
Kconfig: Remove useless "default N" lines
A number of Kconfig entries default to (uppercase) "N". It was clearly
intended to use "default n". But since (lowercase) "n" is the default
anyway, these lines might as well be removed.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
| 4a474157747ab7c4432ac269247e0e0e15f85584 |
|
24-Jan-2014 |
Robert Graffham <psquid@psquid.net> |
Kconfig: update flightly outdated CONFIG_SMP documentation
Remove an outdated reference to "most personal computers" having only one
CPU, and change the use of "singleprocessor" and "single processor" in
CONFIG_SMP's documentation to "uniprocessor" across all arches where that
documentation is present.
Signed-off-by: Robert Graffham <psquid@psquid.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 59ed9413533897823bcdb4c79fd2904718e25b0a |
|
16-Jan-2014 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: [cmdline] uboot cmdline handling rework
* Moved cmdline copy from asm to "C" - allows for more robust checking
of pointer validity etc.
* Remove the Kconfig option to do so, base it on a runtime value passed
by u-boot
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| f06d19e460cdd326eff955ca614cb8064bd0a5f2 |
|
14-Nov-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: extable: Enable sorting at build time
Avoids wasting cycles at boot specially on slower simulators
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Francois Bedard <fbedard@synopsys.com>
Cc: linux-kernel@vger.kernel.org
Acked-by: David Daney <david.daney@cavium.com>
|
| 0a06ff068f1255bcd7965ab07bc0f4adc3eb639a |
|
14-Nov-2013 |
Christoph Hellwig <hch@infradead.org> |
kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS
We've switched over every architecture that supports SMP to it, so
remove the new useless config variable.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 7d0857a54aedbd47b3de503933d65ce462970bd6 |
|
09-Sep-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: [SMP] Disallow RTSC
RTSC is strictly incore and must not be allowed in SMP configs
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 3aa4f80e410b3c14d987c42a90c31023c3081b46 |
|
03-Jun-2013 |
Noam Camus <noamc@ezchip.com> |
ARC: [SMP] enlarge possible NR_CPUS
Signed-off-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 0dafafc3ef42bad34fd446725cb9778c3bdd83a8 |
|
06-Sep-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: Add support for irqflags tracing and lockdep
Lockdep required a small fix to stacktrace API which was incorrectly
unwindign out of __switch_to for the current call frame.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 0244ad004a54e39308d495fee0a2e637f8b5c317 |
|
30-Aug-2013 |
Martin Schwidefsky <schwidefsky@de.ibm.com> |
Remove GENERIC_HARDIRQ config option
After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HARDIRQS can be removed.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| d1a1dc0be866219f7a613c6368c6a036b8eefe03 |
|
01-Jul-2013 |
Dave Hansen <dave@linux.vnet.ibm.com> |
consolidate per-arch stack overflow debugging options
Original posting:
http://lkml.kernel.org/r/20121214184202.F54094D9@kernel.stglabs.ibm.com
Several architectures have similar stack debugging config options.
They all pretty much do the same thing, some with slightly
differing help text.
This patch changes the architectures to instead enable a Kconfig
boolean, and then use that boolean in the generic Kconfig.debug
to present the actual menu option. This removes a bunch of
duplication and adds consistency across arches.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Reviewed-by: H. Peter Anvin <hpa@zytor.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com> [for tile]
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 3abc94480225677ea08af817d56edfb0df9e9b80 |
|
05-Jun-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: [mm] Make stack/heap Non-executable by default
1. For VM_EXEC based delayed dcache/icache flush, reduces the number of
flushes.
2. Makes this security feature ON by default rather than OFF before.
3. Applications can use mprotect() to selectively override this.
4. ELF binaries have a GNU_STACK segment which can easily override the
kernel default permissions.
For nested-functions/trampolines, gcc already auto-enables executable
stack in elf. Others needing this can use -Wl,-z,execstack option.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 2f9e99618f5c858b769fa4455adaa6a4aef9bafd |
|
18-Jun-2013 |
Alexey Brodkin <abrodkin@synopsys.com> |
ARC: make dcache VIPT aliasing support dependant on dcache
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 4102b53392d6397d80b6e09b516517efacf7ea77 |
|
09-May-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: [mm] Aliasing VIPT dcache support 2/4
This is the meat of the series which prevents any dcache alias creation
by always keeping the U and K mapping of a page congruent.
If a mapping already exists, and other tries to access the page, prev
one is flushed to physical page (wback+inv)
Essentially flush_dcache_page()/copy_user_highpage() create K-mapping
of a page, but try to defer flushing, unless U-mapping exist.
When page is actually mapped to userspace, update_mmu_cache() flushes
the K-mapping (in certain cases this can be optimised out)
Additonally flush_cache_mm(), flush_cache_range(), flush_cache_page()
handle the puring of stale userspace mappings on exit/munmap...
flush_anon_page() handles the existing U-mapping for anon page before
kernel reads it via the GUP path.
Note that while not complete, this is enough to boot a simple
dynamically linked Busybox based rootfs
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 072eb693904a52df95ac3d8e8ee00752ed82342c |
|
12-Apr-2013 |
Christian Ruppert <christian.ruppert@abilis.com> |
ARC: [TB10x] Add support for TB10x platform
Infrastructure required to make the Linux kernel compile and boot on the
Abilis Systems TB10x series of SOCs based on ARC700 CPUs:
- Kmake related files (Kconfig, Makefile, tb10x_defconfig)
- TB10x platform initialisation
Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Pierrick Hascoet <pierrick.hascoet@abilis.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 6971881f2ae0e0208375dc40e1a9a4ce56f7c9d6 |
|
09-Apr-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: [cmdline] Remove CONFIG_CMDLINE
Given that DeviceTree /bootargs can provide similar functionality,
no point in providing duplicate infrastructure.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 0e82284514b34127367c418ad07f662f8fc0ede1 |
|
05-May-2013 |
Alexander Shiyan <shc_work@mail.ru> |
ARC: Remove non existent refs to GENERIC_KERNEL_EXECVE & GENERIC_KERNEL_THREAD
This tracks mainline commit ae903caae267 "Bury the conditionals from
kernel_thread/kernel_execve series" which we missed out as ARC port was
not yet mainline.
[vgupta: commit log modified]
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| d190e8195b90bc1e65c494fe08e54e9e581bfd16 |
|
17-Apr-2013 |
Thomas Gleixner <tglx@linutronix.de> |
idle: Remove GENERIC_IDLE_LOOP config switch
All archs are converted over. Remove the config switch and the
fallback code.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
| 5628832f4c2c2604d5c99f3c2ff8aa73b0b121b8 |
|
06-Apr-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: [kbuild] Include Kconfig.binfmt
commit "fs: make binfmt support for #! scripts modular and removable"
made support for #!scripts optional - thus need to include the Kconfig
file to get all relevant BINFMT_*
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| fbf8e13d31bafd1fd1135627b1eaaf70520cb8ab |
|
30-Mar-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: [kbuild] Allow platforms to disable LLSC for !SMP as well
Currently ARC_HAS_LLSC can be influenced by platform for SMP only using
ARC_HAS_COH_LLSC. For !SMP it defaults to "y".
It turns out that some customers can't support it all, even in UP.
So we change the semantics, and use a negative dependency ARC_CANT_LLSC.
Any platform (independent of SMP or !SMP) can select it to disable LLSC.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| fa35e42a00ec0120db2b5128753206efb288e789 |
|
21-Mar-2013 |
Thomas Gleixner <tglx@linutronix.de> |
arc: Use generic idle loop
The generic idle loop implements all functionality. Aside of that it
allows arc to implement the tsk_is_polling() functionality correctly,
despite the patently (now gone) comment in the original arc cpu_idle()
function:
/* Since we SLEEP in idle loop, TIF_POLLING_NRFLAG can't be set */
See kernel/cpu/idle.c
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Tested-by: Vineet Gupta <vgupta@synopsys.com>
Link: http://lkml.kernel.org/r/20130321215233.711253792@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
| 7e0d306c372bf70ff19eb476bc7f7635abe816ea |
|
25-Feb-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: Kconfig cleanup tracking cross-arch Kconfig pruning in merge window
Since ARC port was not yet upstream, we missed a bunch of cross-arch
Kconfig removals:
* GENERIC_SIGALTSTACK: d64008a8f3 "burying unused conditionals"
* HAVE_IRQ_WORK: 6147a9d807 "irq_work: Remove CONFIG_HAVE_IRQ_WORK"
* ARCH_NO_VIRT_TO_BUS: e0cf2ef484 "arch Kconfig: centralise
CONFIG_ARCH_NO_VIRT_TO_BUS"
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 70b319f2beb12e766b12ed2858ee54ff4623ac03 |
|
11-Feb-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: Ensure CONFIG_VIRT_TO_BUS is not enabled
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Reported-by: James Hogan <james.hogan@imgtec.com>
|
| fc7943d29e9f6f5f6d4b111120b66ec86501673e |
|
22-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: [Review] Multi-platform image #6: cpu-to-dma-addr optional
All the current platforms can work with 0x8000_0000 based dma_addr_t
since the Bus Bridges typically ignore the top bit (the only excpetion
was Angel4 PCI-AHB bridge which we no longer care for).
That way we don't need plat-specific cpu-addr to bus-addr conversion.
Hooks still provided - just in case a platform has an obscure device
which say needs 0 based bus address.
That way <asm/dma_mapping.h> no longer needs to unconditinally include
<plat/dma_addr.h>
Also verfied that on Angel4 board, other peripherals (IDE-disk / EMAC)
work fine with 0x8000_0000 based dma addresses.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
|
| 93ad700de2abc111c50bb961c150a9968d5b3982 |
|
22-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: Fold boards sub-menu into platform/SoC menu
This is more natural and is now doable since the choice constructs are
gone.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
|
| 53d98958f585517f362733a1dbdb69e2dc5153a3 |
|
18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: [Review] Multi-platform image #1: Kconfig enablement
This mini patchseries addresses the lack of multi-platform-image support
in ARC port.
Older build system only supported one platform(soc) to build at a time
and further only one board of that platform could be built. There was no
technical reason for that - we just didn't have the need.
So the first step towards multi-platform (and multi-board) builds it to
allow build system to do that.
So as applicable, <choice .. endchoice> => <menu .. endmenu>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
|
| 4368902bb90f0e208387f336c3fce0e6b2a110fc |
|
22-Jan-2013 |
Gilad Ben-Yossef <gilad@benyossef.com> |
ARC: Add support for ioremap_prot API
Implement ioremap_prot() to allow mapping IO memory with variable
protection
via TLB.
Implementing this allows the /dev/mem driver to use its generic access()
VMA callback, which in turn allows ptrace to examine data in memory
mapped regions mapped via /dev/mem, such as Arc DCCM.
The end result is that it is possible to examine values of variables
placed into DCCM in user space programs via GDB.
CC: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
CC: Noam Camus <noamc@ezchip.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| cbe056f76a386708f3807b274322f78269aee0f6 |
|
18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: Hostlink Pseudo-Driver for Metaware Debugger
This allows ARC Target to do I/O to host in absence of any peripherals
whatsoever, assisted by Metaware Hostlink facility.
Further we have a FUSE based filesystem which makes us mount/access host
filesystem on target and do fops.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 8b5850f8ac8d9b809db4588b80b568faca5aaaaf |
|
18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: Support for single cycle Close Coupled Mem (CCM)
* Includes mapping of CCMs in address space
* Annotations to move arbitrary code/data into CCM
* Moving some of the critical code/data into CCM
* Runtime detection/reporting
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 9c57564e26c5392ac7f0e08cc0ad8d29e225a3a3 |
|
18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: perf support (software counters only)
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| f46121bd26d7957866739313f1e098a682e8d3e4 |
|
18-Jan-2013 |
Mischa Jonker <mjonker@synopsys.com> |
ARC: kgdb support
Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
|
| 2e651ea1596b0ee25af4fcdc4cd13cbb33ffc254 |
|
23-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: Unaligned access emulation
ARC700 doesn't natively support unaligned access, but can be emulated
-Unaligned Access Exception
-Disassembly at the Fault address to find the exact insn (long/short)
Also per Arnd's comment, we runtime control it using 2 sysctl knobs:
* SYSCTL_ARCH_UNALIGN_ALLOW: Runtime enable/disble
* SYSCTL_ARCH_UNALIGN_NO_WARN: Warn on each emulation attempt
Originally contributed by Tim Yao <tim.yao@amlogic.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Tim Yao <tim.yao@amlogic.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
|
| 4d86dfbbda09b3c67bcaeb370f22a2cc7f39205b |
|
22-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: kprobes support
Origin port done by Rajeshwar Ranga
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Rajeshwar Ranga <rajeshwar.ranga@gmail.com>
|
| 44c8bb914028f34c622c30340fa21e186e4cf993 |
|
18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: stacktracing APIs based on dw2 unwinder
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 854a0d95056c265d96cb449bc97bc5ef9bbed835 |
|
22-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: DWARF2 .debug_frame based stack unwinder
-Originally written by Rajeshwar Ranga
-Derived off of generic unwinder in 2.6.19 and adapted to ARC
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Rajeshwar Ranga <rajeshwar.ranga@gmail.com>
|
| 41195d236e84458bebd4fdc218610a92231ac791 |
|
18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: SMP support
ARC common code to enable a SMP system + ISS provided SMP extensions.
ARC700 natively lacks SMP support, hence some of the core features are
are only enabled if SoCs have the necessary h/w pixie-dust. This
includes:
-Inter Processor Interrupts (IPI)
-Cache coherency
-load-locked/store-conditional
...
The low level exception handling would be completely broken in SMP
because we don't have hardware assisted stack switching. Thus a fair bit
of this code is repurposing the MMU_SCRATCH reg for event handler
prologues to keep them re-entrant.
Many thanks to Rajeshwar Ranga for his initial "major" contributions to
SMP Port (back in 2008), and to Noam Camus and Gilad Ben-Yossef for help
with resurrecting that in 3.2 kernel (2012).
Note that this platform code is again singleton design pattern - so
multiple SMP platforms won't build at the moment - this deficiency is
addressed in subsequent patches within this series.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rajeshwar Ranga <rajeshwar.ranga@gmail.com>
Cc: Noam Camus <noamc@ezchip.com>
Cc: Gilad Ben-Yossef <gilad@benyossef.com>
|
| 4788a5942bc896803c87005be8c6dd14c373a2d3 |
|
18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: Support for high priority interrupts in the in-core intc
There is a bit of hack/kludge right now where we disable preemption if a
L2 (High prio) IRQ is taken while L1 (Low prio) is active.
Need to revisit this
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
| 769bc1fd7b8591a312d4c5c8834bc6510272938e |
|
22-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: OProfile support
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Robert Richter <rric@kernel.org>
Cc: oprofile-list@lists.sf.net
Reviewed-by: James Hogan <james.hogan@imgtec.com>
|
| 547f112571904da03589beb8434185294c77896a |
|
18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: ptrace support
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
|
| 080c37473eb671a037b3e9a315303851f0675be5 |
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11-Feb-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: [optim] Cache "current" in Register r25
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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| 450dd430bf45ab212a91acfb9bed2528d17f30cd |
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18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: [DeviceTree] Convert some Kconfig items to runtime values
* mem size now runtime configured (prev CONFIG_ARC_PLAT_SDRAM_SIZE)
* core cpu clk runtime configured (prev CONFIG_ARC_PLAT_CLK)
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
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| 999159a5381bff3bd6f688c5d20fbec9d8789e53 |
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22-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: [DeviceTree] Basic support
This is minimal infrastructure needed for devicetree work.
It uses an a sample "skeleton" devicetree - embedded in kernel image -
to print the board, manufacturer by parsing the top-level "compatible"
string.
As of now we don't need any additional "board" specific "machine_desc".
TODO: support interpreting the command line as boot-loader passed dtb
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: devicetree-discuss@lists.ozlabs.org
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
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| c121c5063c0674fad6811f0b0d86ec3bc6eecbbd |
|
18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: Boot #1: low-level, setup_arch(), /proc/cpuinfo, mem init
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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| c3581039b6c51a778a70accec53a9bb7ad9a4d32 |
|
18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: Signal handling
Includes following fixes courtesy review by Al-Viro
* Tracer poke to Callee-regs were lost
Before going off into do_signal( ) we save the user-mode callee regs
(as they are not saved by default as part of pt_regs). This is to make
sure that that a Tracer (if tracing related signal) is able to do likes
of PEEKUSR(callee-reg).
However in return path we were simply discarding the user-mode callee
regs, which would break a POKEUSR(callee-reg) from a tracer.
* Issue related to multiple syscall restarts are addressed in next patch
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Acked-by: Jonas Bonn <jonas@southpole.se>
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| bf90e1eab682dcb79b7765989fb65835ce9d6165 |
|
18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: Process-creation/scheduling/idle-loop
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
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| 4adeefe161a74369e44cc8e663f240ece0470dc3 |
|
18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: Syscall support (no-legacy-syscall ABI)
This includes support for generic clone/for/vfork/execve
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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| cfdbc2e16e65c1ec1c23057640607cee98d1a1bd |
|
18-Jan-2013 |
Vineet Gupta <vgupta@synopsys.com> |
ARC: Build system: Makefiles, Kconfig, Linker script
Arnd in his review pointed out that arch Kconfig organisation has several
deficiencies:
* Build time entries for things which can be runtime extracted from DT
(e.g. SDRAM size, core clk frequency..)
* Not multi-platform-image-build friendly (choice .. endchoice constructs)
* cpu variants support (750/770) is exclusive.
The first 2 have been fixed in subsequent patches.
Due to the nature of the 750 and 770, it is not possible to build for
both together, w/o special runtime glue code which would hurt
performance.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
|