- 21 1月, 2011 1 次提交
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由 David Rientjes 提交于
The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option is used to configure any non-standard kernel with a much larger scope than only small devices. This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes references to the option throughout the kernel. A new CONFIG_EMBEDDED option is added that automatically selects CONFIG_EXPERT when enabled and can be used in the future to isolate options that should only be considered for embedded systems (RISC architectures, SLOB, etc). Calling the option "EXPERT" more accurately represents its intention: only expert users who understand the impact of the configuration changes they are making should enable it. Reviewed-by: NIngo Molnar <mingo@elte.hu> Acked-by: NDavid Woodhouse <david.woodhouse@intel.com> Signed-off-by: NDavid Rientjes <rientjes@google.com> Cc: Greg KH <gregkh@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jens Axboe <axboe@kernel.dk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Robin Holt <holt@sgi.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 19 1月, 2011 28 次提交
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由 Jan Beulich 提交于
In order to be able to suppress the use of SRAT tables that 32-bit Linux can't deal with (in one case known to lead to a non-bootable system, unless disabling ACPI altogether), move the "numa=" option handling to common code. Signed-off-by: NJan Beulich <jbeulich@novell.com> Reviewed-by: NThomas Renninger <trenn@suse.de> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Renninger <trenn@suse.de> LKML-Reference: <4D36B581020000780002D0FF@vpn.id2.novell.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
This reverts commit 86b1e8dd ("x86: Make relocatable kernel work with new binutils"). Markus Trippelsdorf reported a boot failure caused by this patch. The real solution to the original patch will likely involve an arch-generic solution to define an overlaid jiffies_64 and jiffies variables. Until that's done and tested on all architectures revert this commit to solve the regression. Reported-and-bisected-by: NMarkus Trippelsdorf <markus@trippelsdorf.de> Acked-by: N"H. Peter Anvin" <hpa@zytor.com> Cc: Shaohua Li <shaohua.li@intel.com> Cc: "Lu, Hongjiu" <hongjiu.lu@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org>, Cc: Sam Ravnborg <sam@ravnborg.org> LKML-Reference: <4D36A759.60704@intel.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Aurelien Jarno 提交于
While most users of a physical Malta board are using the serial port as the console, a lot of QEMU users would prefer to interact with a graphical console. Enable the Cirrus FB support in the Malta default configuration to make that possible. Note that the default console will still be the serial port, users have to pass "console=tty0" to the kernel to use the Cirrus FB. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2001/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Aurelien Jarno 提交于
Add CONFIG_VIRTUALIZATION to the MIPS architecture and include the the virtio code there. Used to enable the virtio drivers under QEMU. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2002/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
Just do what everyone else is doing by placing __read_mostly things in the .data.read_mostly section. mips_io_port_base can not be read-only (const) and writable (__read_mostly) at the same time. One of them has to go, so I chose to eliminate the __read_mostly. It will still get stuck in a portion of memory that is not adjacent to things that are written, and thus not be on a dirty cache line, for whatever that is worth. Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1702/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gabor Juhos 提交于
Add common platform_device and helper code to make the registration of the built-in wireless MAC easier on the Atheros AR9130/AR9132 based boards. Also register the WMAC device on the AR81 board. Signed-off-by: NGabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Imre Kaloz <kaloz@openwrt.org>, Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1962/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gabor Juhos 提交于
Signed-off-by: NGabor Juhos <juhosg@openwrt.org> Signed-off-by: NImre Kaloz <kaloz@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1952/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gabor Juhos 提交于
Several boards are using the built-in SPI controller of the AR71XX/AR724X/AR913X SoCs. This patch adds common platform_device and helper code to register it. Additionally, the patch registers the SPI bus on the PB44 board. Signed-off-by: NGabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1956/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gabor Juhos 提交于
The Atheros AR71XX/AR724X/AR913X SoCs have a built-in SPI controller. This patch implements a driver for that. Signed-off-by: NGabor Juhos <juhosg@openwrt.org> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: spi-devel-general@lists.sourceforge.net Acked-by: NGrant Likely <grant.likely@secretlab.ca> Cc: linux-mips@linux-mips.org Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1960/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gabor Juhos 提交于
Almost all boards have one or more push buttons connected to GPIO lines. This patch adds common code to register a platform_device for them. The patch also adds support for the buttons on the PB44 board. Signed-off-by: NGabor Juhos <juhosg@openwrt.org> Signed-off-by: NImre Kaloz <kaloz@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1954/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gabor Juhos 提交于
All supported SoCs have a built-in hardware watchdog driver. This patch registers a platform_device for that to make it usable. Signed-off-by: NGabor Juhos <juhosg@openwrt.org> Signed-off-by: NImre Kaloz <kaloz@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1955/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gabor Juhos 提交于
Almost all boards have one or more LEDs connected to GPIO lines. This patch adds common code to register a platform_device for them. The patch also adds support for the LEDs on the PB44 board. Signed-off-by: NGabor Juhos <juhosg@openwrt.org> Signed-off-by: NImre Kaloz <kaloz@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1953/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gabor Juhos 提交于
Signed-off-by: NGabor Juhos <juhosg@openwrt.org> Cc: Imre Kaloz <kaloz@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1950/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gabor Juhos 提交于
Signed-off-by: NGabor Juhos <juhosg@openwrt.org> Cc: Imre Kaloz <kaloz@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1949/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gabor Juhos 提交于
This patch implements generic GPIO routines for the built-in GPIO controllers of the Atheros AR71XX/AR724X/AR913X SoCs. Signed-off-by: NGabor Juhos <juhosg@openwrt.org> Signed-off-by: NImre Kaloz <kaloz@openwrt.org> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: linux-mips@linux-mips.org Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1948/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gabor Juhos 提交于
This patch adds initial support for various Atheros SoCs based on the MIPS 24Kc core. The following models are supported at the moment: - AR7130 - AR7141 - AR7161 - AR9130 - AR9132 - AR7240 - AR7241 - AR7242 The current patch contains minimal support only, but the resulting kernel can boot into user-space with using of an initramfs image on various boards which are using these SoCs. Support for more built-in devices and individual boards will be implemented in further patches. Signed-off-by: NGabor Juhos <juhosg@openwrt.org> Signed-off-by: NImre Kaloz <kaloz@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1947/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
In order not to be left behind, we add jump label support for MIPS. Tested on 64-bit big endian (Octeon), and 32-bit little endian (malta/qemu). Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Jason Baron <jbaron@redhat.com> Patchwork: https://patchwork.linux-mips.org/patch/1923/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
On the off chance that uasm ever warns about overflow, there is no way to know what the offending instruction is. Change the printks to WARNs, so we can get a nice stack trace. It has the added benefit of being much more noticeable than the short single line warning message, so is less likely to be ignored. Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1905/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
Octeon can use scratch registers in the TLB handlers. Octeon II can use LDX instructions. Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1904/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
Needed by Octeon II optimized TLB handlers. Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Pachwork: https://patchwork.linux-mips.org/patch/1903/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
If the CPU supports BBIT0 and BBIT1, use them in TLB handlers as they are more efficient than an AND followed by an branch and then restoring the clobbered register. Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1873/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
these are already defined, but declaring them allow them to be used outside of uasm.c. Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1872/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
Decide at runtime to use either Context or KScratch to hold the PGD pointer. Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1876/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1875/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
Probe c0_config4 for KScratch registers and report them in /proc/cpuinfo. Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1877/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gabor Juhos 提交于
This patch adds a generic solution to support multiple machines based on a given SoC within a single kernel image. It is implemented already for several other architectures but MIPS has no generic support for that yet. [Ralf: This competes with DT but DT is a much more complex solution and this code has been used by OpenWRT for a long time so for now DT is a bad reason to stop the merge but longer term this should be migrated to DT.] Signed-off-by: NGabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Cc: kaloz@openwrt.org Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1814/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Joe Perches 提交于
Using %pR standardizes the struct resource output. Signed-off-by: NJoe Perches <joe@perches.com> To: Jiri Kosina <trivial@kernel.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1772/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Joe Perches 提交于
Signed-off-by: NJoe Perches <joe@perches.com> To: Jiri Kosina <trivial@kernel.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1756/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 18 1月, 2011 7 次提交
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由 Brian Gerst 提交于
Mathias Merz reported that v2.6.37 failed to boot on his system. Make sure that the thread_info part of the irqstack is initialized to zeroes. Reported-and-Tested-by: NMatthias Merz <linux@merz-ka.de> Signed-off-by: NBrian Gerst <brgerst@gmail.com> Acked-by: NPekka Enberg <penberg@kernel.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <AANLkTimyKXfJ1x8tgwrr1hYnNLrPfgE1NTe4z7L6tUDm@mail.gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Shaohua Li 提交于
The CONFIG_RELOCATABLE=y option is broken with new binutils, which will make boot panic. According to Lu Hongjiu, the affected binutils are from 2.20.51.0.12 to 2.21.51.0.3, which are release since Oct 22 this year. At least ubuntu 10.10 is using such binutils. See: http://sourceware.org/bugzilla/show_bug.cgi?id=12327 The reason of the boot panic is that we have 'jiffies = jiffies_64;' in vmlinux.lds.S. The jiffies isn't in any section. In kernel build, there is warning saying jiffies is an absolute address and can't be relocatable. At runtime, jiffies will have virtual address 0. Signed-off-by: Shaohua Li<shaohua.li@intel.com> Cc: Lu Hongjiu<hongjiu.lu@intel.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Sam Ravnborg <sam@ravnborg.org> LKML-Reference: <1295312269.1949.725.camel@sli10-conroe> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jassi Brar 提交于
Signed-off-by: NJassi Brar <jassi.brar@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Jassi Brar 提交于
Signed-off-by: NJassi Brar <jassi.brar@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Jassi Brar 提交于
Signed-off-by: NJassi Brar <jassi.brar@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Jassi Brar 提交于
Signed-off-by: NJassi Brar <jassi.brar@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Jassi Brar 提交于
Add missing virtual ASoC DMA device. Signed-off-by: NJassi Brar <jassi.brar@samsung.com> Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com> [kgene.kim@samsung.com: minor changed title] Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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- 17 1月, 2011 4 次提交
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由 Anton Blanchard 提交于
When profiling a benchmark that is almost 100% userspace, I noticed some wildly inaccurate profiles that showed almost all time spent in the kernel. Closer examination shows we were programming a tiny number of cycles into the PMU after each overflow (about ~200 away from the next overflow). This gets us stuck in a loop which we eventually break out of by throttling the PMU (there are regular throttle/unthrottle events in the log). It looks like we aren't setting event->hw.last_period to something same and the frequency to period calculations in perf are going haywire. With the following patch we find the correct period after a few interrupts and stay there. I also see no more throttle events. Signed-off-by: NAnton Blanchard <anton@samba.org> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Cc: linuxppc-dev@lists.ozlabs.org Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> LKML-Reference: <20110117161742.5feb3761@kryten> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ivan Kokshaysky 提交于
Interrupts ought to be disabled _before_ irq_enter(). Signed-off-by: NIvan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: NMatt Turner <mattst88@monolith.freenet-rz.de>
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由 Ivan Kokshaysky 提交于
Commit df9ee292 made arch_local_irq_save and arch_local_irq_restore static inline which with -Werror trips up on __set_hae() and _set_hae() which are extern inline. The naive solution is to make __set_hae() and set_hae() static inline but for reasons described in commit d559d4a2 this breaks the generic kernel build. Instead, since this is architecture specific code, this patch hard wires in the architecture specific method f disabling and enabling interrupts. Tested-by: NMichael Cree <mcree@orcon.net.nz> Signed-off-by: NIvan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: NMatt Turner <mattst88@gmail.com>
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由 Matt Turner 提交于
Acked-by: NKyle McMartin <kyle@redhat.com> Signed-off-by: NMatt Turner <mattst88@gmail.com>
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