Steven J. Hill [Wed, 1 Jan 2014 15:35:32 +0000 (16:35 +0100)]
MIPS: APRP: Code formatting clean-ups.
Clean-up code according to the 'checkpatch.pl' script.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Reviewed-by: Qais Yousef <Qais.Yousef@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/6097/
Reviewed-by: John Crispin <blogic@openwrt.org>
Deng-Cheng Zhu [Wed, 30 Oct 2013 20:52:10 +0000 (15:52 -0500)]
MIPS: APRP: Add support for Malta CMP platform.
Malta with multi-core CM platforms can now use APRP functionality.
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Reviewed-by: Qais Yousef <Qais.Yousef@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6096/
Deng-Cheng Zhu [Wed, 1 Jan 2014 15:29:03 +0000 (16:29 +0100)]
MIPS: APRP: Add RTLX API support for CMP platforms.
This patch adds RTLX API support for platforms having a CMP.
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Reviewed-by: Qais Yousef <Qais.Yousef@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/6095/
Reviewed-by: John Crispin <blogic@openwrt.org>
Deng-Cheng Zhu [Wed, 1 Jan 2014 15:26:46 +0000 (16:26 +0100)]
MIPS: APRP: Split RTLX support into separate files.
Split the RTLX functionality in preparation for adding support for CMP
platforms. Common functions remain in the original file and a new file
contains code specific to platforms that do not have a CMP.
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Reviewed-by: Qais Yousef <Qais.Yousef@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/6093/
Reviewed-by: John Crispin <blogic@openwrt.org>
Deng-Cheng Zhu [Wed, 30 Oct 2013 20:52:07 +0000 (15:52 -0500)]
MIPS: APRP: Add VPE loader support for CMP platforms.
This patch adds VPE loader support for platforms having a CMP.
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Reviewed-by: Qais Yousef <Qais.Yousef@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6092/
Deng-Cheng Zhu [Wed, 30 Oct 2013 20:52:06 +0000 (15:52 -0500)]
MIPS: APRP: Split VPE loader into separate files.
Split the VPE functionality in preparation for adding support
for CMP platforms. Common functions remain in the original file
and a new file contains code specific to platforms that do not
have a CMP present.
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Reviewed-by: Qais Yousef <Qais.Yousef@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6094/
Steven J. Hill [Fri, 4 Oct 2013 21:23:28 +0000 (16:23 -0500)]
MIPS: Clean up MIPS MT and CMP configuration options.
This patch accomplishes the following:
* Clean up wording on all MIPS MT configuration menu items.
* Simplify and neaten up options selected by MIPS_MT_SMP.
* Make MIPS_MT_SMTC support as deprecated.
* Make MIPS_CMP support to depend on MIPS_MT_SMP also.
* Remove redundant options selected by MIPS_CMP.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6019/
Leonid Yegoshin [Wed, 20 Nov 2013 10:46:02 +0000 (10:46 +0000)]
MIPS: kernel: cpu-probe: Add support for probing interAptiv cores
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6152/
Leonid Yegoshin [Wed, 27 Nov 2013 10:07:53 +0000 (10:07 +0000)]
MIPS: Add support for interAptiv cores
The interAptiv is a power-efficient multi-core microprocessor
for use in system-on-chip (SoC) applications. The interAptiv combines
a multi-threading pipeline with a coherence manager to deliver improved
computational throughput and power efficiency. The interAptiv can
contain one to four MIPS32R3 interAptiv cores, system level
coherence manager with L2 cache, optional coherent I/O port,
and optional floating point unit.
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6163/
Leonid Yegoshin [Wed, 20 Nov 2013 10:46:00 +0000 (10:46 +0000)]
MIPS: Add processor identifiers for the interAptiv processors
Add processor identifiers for UP and MT interAptiv processors.
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6151/
Steven J. Hill [Thu, 14 Nov 2013 16:12:32 +0000 (16:12 +0000)]
MIPS: Add debugfs file to print the segmentation control registers
Add a new mips/segments debugfs file to print the 6 segmentation
control registers for supported cores. A sample from a proAptiv core
is given below:
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6137/
Segment Virtual Size Access Mode Physical Caching EU
------- ------- ---- ----------- -------- ------- --
0
e0000000 512M MK UND U 0
1
c0000000 512M MSK UND U 0
2
a0000000 512M UK 000 2 0
3
80000000 512M UK 000 3 0
4
40000000 1G MUSK UND U 1
5
00000000 1G MUSK UND U 1
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Leonid Yegoshin [Thu, 14 Nov 2013 16:12:31 +0000 (16:12 +0000)]
MIPS: Add support for FTLBs
The Fixed Page Size TLB (FTLB) is a set-associative dual entry TLB. Its
purpose is to reduce the number of TLB misses by increasing the effective
TLB size and keep the implementation complexity to minimum levels.
A supported core can have both VTLB and FTLB.
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6139/
Leonid Yegoshin [Thu, 14 Nov 2013 16:12:30 +0000 (16:12 +0000)]
MIPS: mm: Use the TLBINVF instruction to flush the VTLB
The TLBINVF instruction can be used to flush the entire VTLB.
This eliminates the need for the TLBWI loop and improves performance.
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6138/
Leonid Yegoshin [Thu, 14 Nov 2013 16:12:29 +0000 (16:12 +0000)]
MIPS: Add function for flushing the TLB using the TLBINV instruction
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6136/
Leonid Yegoshin [Thu, 14 Nov 2013 16:12:28 +0000 (16:12 +0000)]
MIPS: kernel: cpu-probe: Add support for probing proAptiv cores
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6135/
Leonid Yegoshin [Thu, 14 Nov 2013 16:12:27 +0000 (16:12 +0000)]
MIPS: Add support for the proAptiv cores
The proAptiv Multiprocessing System is a power efficient multi-core
microprocessor for use in system-on-chip (SoC) applications.
The proAptiv Multiprocessing System combines a deep pipeline
with multi-issue out of order execution for improved computational
throughput. The proAptiv Multiprocessing System can contain one to
six MIPS32r3 proAptiv cores, system level coherence
manager with L2 cache, optional coherent I/O port, and optional
floating point unit.
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6134/
Leonid Yegoshin [Thu, 14 Nov 2013 16:12:26 +0000 (16:12 +0000)]
MIPS: Add processor identifiers for the proAptiv processors
Add processor identifiers for single core and multi-core
proAptiv processors.
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6133/
Leonid Yegoshin [Thu, 14 Nov 2013 16:12:25 +0000 (16:12 +0000)]
MIPS: tlb: Set the EHINV bit for TLBINVF cores when invalidating the TLB
For MIPS32R3 supported cores, the EHINV bit needs to be set when
invalidating the TLB. This is necessary because the legacy software
method of representing an invalid TLB entry using an unmapped address
value is not guaranteed to work.
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6132/
Steven J. Hill [Thu, 14 Nov 2013 16:12:24 +0000 (16:12 +0000)]
MIPS: features: Add initial support for Segmentation Control registers
MIPS32R3 introduced a new set of Segmentation Control registers which
increase the flexibility of the segmented-based memory scheme.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6131/
Leonid Yegoshin [Thu, 14 Nov 2013 16:12:23 +0000 (16:12 +0000)]
MIPS: features: Add initial support for TLBINVF capable cores
New Aptiv cores support the TLBINVF instruction for flushing
the VTLB.
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6130/
Markos Chandras [Thu, 14 Nov 2013 16:12:22 +0000 (16:12 +0000)]
MIPS: mm: Move UNIQUE_ENTRYHI macro to a header file
The UNIQUE_ENTRYHI definition was duplicated whenever there
was the need to flush the TLB entries. We move this common
definition to a header file.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6129/
Leonid Yegoshin [Thu, 14 Nov 2013 16:12:21 +0000 (16:12 +0000)]
MIPS: Add missing bits for Config registers
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6128/
Markos Chandras [Tue, 15 Oct 2013 14:13:02 +0000 (15:13 +0100)]
MIPS: MT: proc: Add support for printing VPE and TC ids
Add support for including VPE and TC ids in /proc/cpuinfo output as
appropriate when MT/SMTC is enabled.
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6065/
Leonid Yegoshin [Mon, 14 Oct 2013 08:49:25 +0000 (09:49 +0100)]
MIPS: Malta: Remove ttyS2 serial for CMP platforms
Commit
225ae5fd9a320e22841410049c3bdb6cf14a5841
"MIPS: Malta: Fix interupt number of CBUS UART"
fixed the IRQ number for the ttyS2 CBUS UART. However, this now
conflicts with the GIC IPI1 interrupt in CMP platforms. The Malta
interrupt code arbitrarily binds IPIs to INT2 and INT3 and since
ttyS2 uses the INT2 IRQ line, closing the device disables the
INT2 interrupt and this effectively disables the IPI1 interrupt
as well. This patch is mainly a workaround until the Malta code
is fixed properly.
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6045/
Leonid Yegoshin [Thu, 10 Oct 2013 08:58:59 +0000 (09:58 +0100)]
MIPS: Add printing of ES bit for Imgtec cores when cache error occurs.
The cacheer register is always implemented in the same way in the
MIPS32r2 Imgtec cores so print the ES bit when an cache error
occurs.
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6041/
Steven J. Hill [Wed, 9 Oct 2013 15:47:23 +0000 (16:47 +0100)]
MIPS: GIC: Send IPIs using the GIC
If GIC is present, then use it to send IPIs between the cores.
Using GIC for IPIs is simpler and is usable for multicore
systems compared to the existing way of doing IPIs where all VPEs
had to be disabled for another VPE to access the Cause register
in one of the TCs and enable all the VPEs back.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6040/
Markos Chandras [Wed, 9 Oct 2013 15:16:25 +0000 (16:16 +0100)]
MIPS: MT: Mark existing TCs as present
According to Documentation/cpu-hotplug.txt, the cpu_present_mask should
contain all the CPUs which are present in the system. Therefore, all the TCs
currently present in the system should be marked as 'present' even if they
will never be brought online.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6039/
Markos Chandras [Thu, 19 Sep 2013 17:18:41 +0000 (18:18 +0100)]
MIPS: mm: c-r4k: Panic if IL or DL fields have a reserved value
According to MIPS32 and MIPS64 PRA documents,
a value of 7 in IL and DL fields is marked as "Reserved"
so panic if the core uses this value in the config1 register.
Also simplify the code a little bit.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5861/
Markos Chandras [Thu, 19 Sep 2013 17:00:29 +0000 (18:00 +0100)]
MIPS: kernel: smp-cmp: MIPS MT code needs CONFIG_MIPS_MT
The mips_mt_* symbols are only built and exported if
CONFIG_MIPS_MT is enabled.
Fixes the following build problem when CONFIG_SMP is enabled
but CONFIG_MIPS_MT is not.
arch/mips/built-in.o: In function `cmp_prepare_cpus':
arch/mips/kernel/smp-cmp.c:197:
undefined reference to `mips_mt_set_cpuoptions'
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5860/
Ilia Mirkin [Fri, 6 Dec 2013 23:56:53 +0000 (18:56 -0500)]
MIPS: BCM47XX: Fix some very confused types and data corruption
Fix nvram_read_alpha2 copying too many bytes over the ssb_sprom
structure. Also fix the arguments of the read_macaddr, although the code
was technically not wrong before due to an extra dereference.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6211/
Hauke Mehrtens [Sun, 22 Dec 2013 13:36:32 +0000 (14:36 +0100)]
MIPS: BCM47XX: add vectored interrupt support
This adds support for vectored interrupt which is supported by the SoC
using a MIPS 74K CPU like the BCM4716 and BCM4706.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6290/
Hauke Mehrtens [Sun, 22 Dec 2013 13:36:31 +0000 (14:36 +0100)]
MIPS: BCM47XX: add cpu-feature-overrides.h
The BCM47XX SoC code missed a cpu-feature-overrides.h header file, this
patch adds it. This code supports a long line of SoCs with different
features so for some features we still have to rely on the runtime
detection.
This was crated by checking the features of a BCM4712, BCM4704,
BCM5354, BCM4716 and BCM4706 SoC and then tested on these SoCs. There
are some SoCs missing but I hope they do not have any more or less
features.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6289/
Hauke Mehrtens [Sun, 13 Oct 2013 20:56:50 +0000 (22:56 +0200)]
MIPS: BCM47XX: move constant array from stack
Move the possible nvram sizes from the stack into the data segment
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6044/
Hauke Mehrtens [Sun, 13 Oct 2013 20:55:58 +0000 (22:55 +0200)]
MIPS: BCM47XX: add asmlinkage to plat_irq_dispatch()
plat_irq_dispatch() is called from asm code, add asmlinkage.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6043/
Hauke Mehrtens [Sat, 28 Sep 2013 22:15:48 +0000 (00:15 +0200)]
MIPS: BCM47XX: update defconfig
The defconfig for bcm47xx contained lots of driver which are not
special for these SoCs and missed on the other side some some drivers
for parts essential for these SoC and only found on here. The flash,
usb and some Ethernet driver were missing.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5930/
Hauke Mehrtens [Tue, 24 Sep 2013 22:36:56 +0000 (00:36 +0200)]
MIPS: BCM47XX: add EARLY_PRINTK_8250 support
The BCM47xx SoCs have a 8250 serial compatible console at address
0x18000300 and an other at 0x18000400. On most devices 0x18000300 is
wired to some pins on the board, we should use that.
This is the smae for the AI (bcma) and the SB (ssb) bus, this is some
offset on the chip common core.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5889/
Hauke Mehrtens [Tue, 24 Sep 2013 22:36:55 +0000 (00:36 +0200)]
MIPS: BCM47XX: Remove CFE support
bcm47xx only uses the CFE code for early print to a console, but that
is also possible with a early print serial 8250 driver.
The CFE api init causes hangs somewhere in prom_init_cfe() on some
devices like the Buffalo WHR-HP-G54 and the Asus WL-520GU.
This was reported in https://dev.openwrt.org/ticket/4061 and
https://forum.openwrt.org/viewtopic.php?id=17063
This will remove all the CFE handling code from bcm47xx.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5888/
Hauke Mehrtens [Thu, 19 Sep 2013 21:40:09 +0000 (23:40 +0200)]
MIPS: BCM47XX: only print SoC name in system type in cpuinfo
Recently the output of "system type" in /proc/cpuinfo was changed to
Broadcom BCM4730 (Some sample board), but it is better to just print
the SoC name in the "system type" entry. The board name will be added
in the machine entry later.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5865/
Jonas Gorski [Wed, 18 Dec 2013 13:12:11 +0000 (14:12 +0100)]
MIPS: BCM63XX: drop SYS_HAS_CPU_MIPS32R1
All MIPS cores on BCM63XX identify as Broadcom, not MIPS, so no need
to support non-broadcom MIPS CPUs. This also ensures that CPU_BMIPS
is always selected.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6246/
Jonas Gorski [Wed, 18 Dec 2013 13:12:10 +0000 (14:12 +0100)]
MIPS: cpu-type: guard BMIPS variants with SYS_HAS_CPU_BMIPS*
BMIPS32 and BMIPS3300 also need to be available for MIPS32R1, as
bcm47xx might not select BMIPS.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6245/
Jonas Gorski [Wed, 18 Dec 2013 13:12:09 +0000 (14:12 +0100)]
MIPS: BCM47XX: select BMIPS CPUs for BCM47XX_SSB
Let BCM47XX_SSB select the appropriate BMIPS CPUs enountered on those
systems.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6244/
Jonas Gorski [Wed, 18 Dec 2013 13:12:08 +0000 (14:12 +0100)]
MIPS: BCM63XX: let the individual SoCs select the appropriate CPUs
Let each supported chip select the appropirate SYS_HAS_CPU_BMIPS*
option for its embedded processor, so support will be conditionally
included.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6250/
Jonas Gorski [Wed, 18 Dec 2013 13:12:07 +0000 (14:12 +0100)]
MIPS: BCM63XX: always register bmips smp ops
Use the return value for guarding further SMP setup.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6249/
Jonas Gorski [Wed, 18 Dec 2013 13:12:06 +0000 (14:12 +0100)]
MIPS: BMIPS: add a smp ops registration helper
Add a helper similar to the generic register_XXX_smp_ops() for bmips.
Register SMP UP ops in case of BMIPS32/3300.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6248/
Jonas Gorski [Wed, 18 Dec 2013 13:12:05 +0000 (14:12 +0100)]
MIPS: BMIPS: extend BMIPS3300 to include BMIPS32
Codewise there is no difference between these two, so it does not make
sense to treat them differently. Also chip families having one of these
tend to have the other.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6247/
Jonas Gorski [Wed, 18 Dec 2013 13:12:04 +0000 (14:12 +0100)]
MIPS: BMIPS: select CPU_HAS_PREFETCH
As they are MIPS32 CPUs they do support the prefetch opcode.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6243/
Jonas Gorski [Wed, 18 Dec 2013 13:12:03 +0000 (14:12 +0100)]
MIPS: BMIPS: select CPU_SUPPORTS_HIGHMEM
All BMIPS CPUs support HIGHMEM, so it should be selected by CPU_BMIPS.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6242/
Jonas Gorski [Wed, 18 Dec 2013 13:12:02 +0000 (14:12 +0100)]
MIPS: BMIPS: merge CPU options into one option
Instead of treating each flavour as an exclusive CPU to select, make
BMIPS the only option and let SYS_HAS_CPU_BMIPS* decide for which
flavours to include support.
Run tested on BMIPS3300 and BMIPS4350, only build tested for BMIPS4380
and BMIPS5000.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6240/
Jonas Gorski [Wed, 18 Dec 2013 13:12:01 +0000 (14:12 +0100)]
MIPS: BMIPS: change compile time checks to runtime checks
Allow building for all bmips cpus at the same time by changing ifdefs
to checks for the cpu type, or adding appropriate checks to the
assembly.
Since BMIPS43XX and BMIPS5000 require different IPI implementations,
split the SMP ops into one for each, so the runtime overhead is only
at registration time for them.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6241/
Jonas Gorski [Wed, 18 Dec 2013 13:12:00 +0000 (14:12 +0100)]
MIPS: allow asm/cpu.h to be included from assembly
Add guards around the enum to allow including cpu.h from assembly.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6238/
Jonas Gorski [Wed, 18 Dec 2013 13:11:59 +0000 (14:11 +0100)]
MIPS: BCM63XX: disable SMP also on BCM3368
BCM3368 has the same shared TLB as BCM6358.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6239/
Jonas Gorski [Sat, 30 Nov 2013 11:42:05 +0000 (12:42 +0100)]
MIPS: BCM63XX: add HSSPI platform device and register it
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6180/
Jonas Gorski [Sat, 30 Nov 2013 11:42:04 +0000 (12:42 +0100)]
MIPS: BCM63XX: add HSSPI IRQ and register offsets
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6179/
Jonas Gorski [Sat, 30 Nov 2013 11:42:03 +0000 (12:42 +0100)]
MIPS: BCM63XX: setup the HSSPI clock rate
Properly set up the HSSPI clock rate depending on the SoC's PLL rate.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6177/
Jonas Gorski [Sat, 30 Nov 2013 11:42:02 +0000 (12:42 +0100)]
MIPS: BCM63XX: expose the HSSPI clock
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6178/
Paul Burton [Fri, 22 Nov 2013 13:12:07 +0000 (13:12 +0000)]
MIPS: Support for 64-bit FP with O32 binaries
CPUs implementing MIPS32 R2 may include a 64-bit FPU, just as MIPS64 CPUs
do. In order to preserve backwards compatibility a 64-bit FPU will act
like a 32-bit FPU (by accessing doubles from the least significant 32
bits of an even-odd pair of FP registers) when the Status.FR bit is
zero, again just like a mips64 CPU. The standard O32 ABI is defined
expecting a 32-bit FPU, however recent toolchains support use of a
64-bit FPU from an O32 MIPS32 executable. When an ELF executable is
built to use a 64-bit FPU a new flag (EF_MIPS_FP64) is set in the ELF
header.
With this patch the kernel will check the EF_MIPS_FP64 flag when
executing an O32 binary, and set Status.FR accordingly. The addition
of O32 64-bit FP support lessens the opportunity for optimisation in
the FPU emulator, so a CONFIG_MIPS_O32_FP64_SUPPORT Kconfig option is
introduced to allow this support to be disabled for those that don't
require it.
Inspired by an earlier patch by Leonid Yegoshin, but implemented more
cleanly & correctly.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Paul Burton <paul.burton@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/6154/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Thu, 7 Nov 2013 12:48:30 +0000 (12:48 +0000)]
MIPS: Remove unused {en,dis}able_fpu macros
These macros are not used anywhere in the kernel. Remove them.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6111/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Steven J. Hill [Thu, 7 Nov 2013 12:48:29 +0000 (12:48 +0000)]
MIPS: microMIPS: mfhc1 & mthc1 support for the FPU emulator
This patch adds support for microMIPS encodings of the mfhc1 & mthc1
instructions introduced in release 2 of the mips32 & mips64
architectures, converting them to their mips32 equivalents for the FPU
emulator.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6110/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Leonid Yegoshin [Thu, 7 Nov 2013 12:48:28 +0000 (12:48 +0000)]
MIPS: math-emu: Add mfhc1 & mthc1 support.
This patch adds support for the mfhc1 & mthc1 instructions to the FPU
emulator. These instructions were introduced in release 2 of the MIPS32
& MIPS64 architectures and allow access to the most significant 32 bits
of a 64-bit FP register.
[ralf@linux-mips.org: Fix ifdef hell added by original patch.]
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6112/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Torvalds [Sun, 12 Jan 2014 10:04:18 +0000 (17:04 +0700)]
Linux 3.13-rc8
Steven Rostedt [Fri, 10 Jan 2014 02:46:34 +0000 (21:46 -0500)]
SELinux: Fix possible NULL pointer dereference in selinux_inode_permission()
While running stress tests on adding and deleting ftrace instances I hit
this bug:
BUG: unable to handle kernel NULL pointer dereference at
0000000000000020
IP: selinux_inode_permission+0x85/0x160
PGD
63681067 PUD
7ddbe067 PMD 0
Oops: 0000 [#1] PREEMPT
CPU: 0 PID: 5634 Comm: ftrace-test-mki Not tainted 3.13.0-rc4-test-00033-gd2a6dde-dirty #20
Hardware name: /DG965MQ, BIOS MQ96510J.86A.0372.2006.0605.1717 06/05/2006
task:
ffff880078375800 ti:
ffff88007ddb0000 task.ti:
ffff88007ddb0000
RIP: 0010:[<
ffffffff812d8bc5>] [<
ffffffff812d8bc5>] selinux_inode_permission+0x85/0x160
RSP: 0018:
ffff88007ddb1c48 EFLAGS:
00010246
RAX:
0000000000000000 RBX:
0000000000800000 RCX:
ffff88006dd43840
RDX:
0000000000000001 RSI:
0000000000000081 RDI:
ffff88006ee46000
RBP:
ffff88007ddb1c88 R08:
0000000000000000 R09:
ffff88007ddb1c54
R10:
6e6576652f6f6f66 R11:
0000000000000003 R12:
0000000000000000
R13:
0000000000000081 R14:
ffff88006ee46000 R15:
0000000000000000
FS:
00007f217b5b6700(0000) GS:
ffffffff81e21000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033^M
CR2:
0000000000000020 CR3:
000000006a0fe000 CR4:
00000000000007f0
Call Trace:
security_inode_permission+0x1c/0x30
__inode_permission+0x41/0xa0
inode_permission+0x18/0x50
link_path_walk+0x66/0x920
path_openat+0xa6/0x6c0
do_filp_open+0x43/0xa0
do_sys_open+0x146/0x240
SyS_open+0x1e/0x20
system_call_fastpath+0x16/0x1b
Code: 84 a1 00 00 00 81 e3 00 20 00 00 89 d8 83 c8 02 40 f6 c6 04 0f 45 d8 40 f6 c6 08 74 71 80 cf 02 49 8b 46 38 4c 8d 4d cc 45 31 c0 <0f> b7 50 20 8b 70 1c 48 8b 41 70 89 d9 8b 78 04 e8 36 cf ff ff
RIP selinux_inode_permission+0x85/0x160
CR2:
0000000000000020
Investigating, I found that the inode->i_security was NULL, and the
dereference of it caused the oops.
in selinux_inode_permission():
isec = inode->i_security;
rc = avc_has_perm_noaudit(sid, isec->sid, isec->sclass, perms, 0, &avd);
Note, the crash came from stressing the deletion and reading of debugfs
files. I was not able to recreate this via normal files. But I'm not
sure they are safe. It may just be that the race window is much harder
to hit.
What seems to have happened (and what I have traced), is the file is
being opened at the same time the file or directory is being deleted.
As the dentry and inode locks are not held during the path walk, nor is
the inodes ref counts being incremented, there is nothing saving these
structures from being discarded except for an rcu_read_lock().
The rcu_read_lock() protects against freeing of the inode, but it does
not protect freeing of the inode_security_struct. Now if the freeing of
the i_security happens with a call_rcu(), and the i_security field of
the inode is not changed (it gets freed as the inode gets freed) then
there will be no issue here. (Linus Torvalds suggested not setting the
field to NULL such that we do not need to check if it is NULL in the
permission check).
Note, this is a hack, but it fixes the problem at hand. A real fix is
to restructure the destroy_inode() to call all the destructor handlers
from the RCU callback. But that is a major job to do, and requires a
lot of work. For now, we just band-aid this bug with this fix (it
works), and work on a more maintainable solution in the future.
Link: http://lkml.kernel.org/r/20140109101932.0508dec7@gandalf.local.home
Link: http://lkml.kernel.org/r/20140109182756.17abaaa8@gandalf.local.home
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Sun, 12 Jan 2014 09:25:21 +0000 (01:25 -0800)]
thp: fix copy_page_rep GPF by testing is_huge_zero_pmd once only
We see General Protection Fault on RSI in copy_page_rep: that RSI is
what you get from a NULL struct page pointer.
RIP: 0010:[<
ffffffff81154955>] [<
ffffffff81154955>] copy_page_rep+0x5/0x10
RSP: 0000:
ffff880136e15c00 EFLAGS:
00010286
RAX:
ffff880000000000 RBX:
ffff880136e14000 RCX:
0000000000000200
RDX:
6db6db6db6db6db7 RSI:
db73880000000000 RDI:
ffff880dd0c00000
RBP:
ffff880136e15c18 R08:
0000000000000200 R09:
000000000005987c
R10:
000000000005987c R11:
0000000000000200 R12:
0000000000000001
R13:
ffffea00305aa000 R14:
0000000000000000 R15:
0000000000000000
FS:
00007f195752f700(0000) GS:
ffff880c7fc20000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
0000000093010000 CR3:
00000001458e1000 CR4:
00000000000027e0
Call Trace:
copy_user_huge_page+0x93/0xab
do_huge_pmd_wp_page+0x710/0x815
handle_mm_fault+0x15d8/0x1d70
__do_page_fault+0x14d/0x840
do_page_fault+0x2f/0x90
page_fault+0x22/0x30
do_huge_pmd_wp_page() tests is_huge_zero_pmd(orig_pmd) four times: but
since shrink_huge_zero_page() can free the huge_zero_page, and we have
no hold of our own on it here (except where the fourth test holds
page_table_lock and has checked pmd_same), it's possible for it to
answer yes the first time, but no to the second or third test. Change
all those last three to tests for NULL page.
(Note: this is not the same issue as trinity's DEBUG_PAGEALLOC BUG
in copy_page_rep with RSI:
ffff88009c422000, reported by Sasha Levin
in https://lkml.org/lkml/2013/3/29/103. I believe that one is due
to the source page being split, and a tail page freed, while copy
is in progress; and not a problem without DEBUG_PAGEALLOC, since
the pmd_same check will prevent a miscopy from being made visible.)
Fixes:
97ae17497e99 ("thp: implement refcounting for huge zero page")
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: stable@vger.kernel.org # v3.10 v3.11 v3.12
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ming Lei [Thu, 26 Dec 2013 13:31:37 +0000 (21:31 +0800)]
block: null_blk: fix queue leak inside removing device
When queue_mode is NULL_Q_MQ and null_blk is being removed,
blk_cleanup_queue() isn't called to cleanup queue, so the queue
allocated won't be freed.
This patch calls blk_cleanup_queue() for MQ to drain all pending
requests first and release the reference counter of queue kobject, then
blk_mq_free_queue() will be called in queue kobject's release handler
when queue kobject's reference counter drops to zero.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 10 Jan 2014 23:37:11 +0000 (06:37 +0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"Famouse last words: "final pull request" :-)
I'm sending this because Jason Wang's fixes are pretty important
1) Add missing per-cpu stats initialization to ip6_vti. Otherwise
lockdep spits out a call trace. From Li RongQing.
2) Fix NULL oops in wireless hwsim, from Javier Lopez
3) TIPC deferred packet queue unlink must NULL out skb->next to avoid
crashes. From Erik Hugne
4) Fix access to uninitialized buffer in nf_nat netfilter code, from
Daniel Borkmann
5) Fix lifetime of ipv6 loopback and SIT tunnel addresses, otherwise
they basically timeout immediately. From Hannes Frederic Sowa
6) Fix DMA unmapping of TSO packets in bnx2x driver, from Michal
Schmidt
7) Do not allow L2 forwarding offload via macvtap device, the way
things are now it will not end up being forwaded at all. From
Jason Wang
8) Fix transmit queue selection via ndo_dfwd_start_xmit(), fixing
things like applying NETIF_F_LLTX to the wrong device (!!) and
eliding the proper transmit watchdog handling
9) qlcnic driver was not updating tx statistics at all, from Manish
Chopra"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
qlcnic: Fix ethtool statistics length calculation
qlcnic: Fix bug in TX statistics
net: core: explicitly select a txq before doing l2 forwarding
macvlan: forbid L2 fowarding offload for macvtap
bnx2x: fix DMA unmapping of TSO split BDs
ipv6: add link-local, sit and loopback address with INFINITY_LIFE_TIME
bnx2x: prevent WARN during driver unload
tipc: correctly unlink packets from deferred packet queue
ipv6: pcpu_tstats.syncp should be initialised in ip6_vti.c
netfilter: only warn once on wrong seqadj usage
netfilter: nf_nat: fix access to uninitialized buffer in IRC NAT helper
NFC: Fix target mode p2p link establishment
iwlwifi: add new devices for 7265 series
mac80211: move "bufferable MMPDU" check to fix AP mode scan
mac80211_hwsim: Fix NULL pointer dereference
Linus Torvalds [Fri, 10 Jan 2014 23:33:03 +0000 (06:33 +0700)]
Merge tag 'xfs-for-linus-v3.13-rc8' of git://oss.sgi.com/xfs/xfs
Pull xfs bugfixes from Ben Myers:
"Here we have a bugfix for an off-by-one in the remote attribute
verifier that results in a forced shutdown which you can hit with v5
superblock by creating a 64k xattr, and a fix for a missing
destroy_work_on_stack() in the allocation worker.
It's a bit late, but they are both fairly straightforward"
* tag 'xfs-for-linus-v3.13-rc8' of git://oss.sgi.com/xfs/xfs:
xfs: Calling destroy_work_on_stack() to pair with INIT_WORK_ONSTACK()
xfs: fix off-by-one error in xfs_attr3_rmt_verify
Linus Torvalds [Fri, 10 Jan 2014 23:26:27 +0000 (06:26 +0700)]
Merge branch 'leds-fixes-for-3.13' of git://git./linux/kernel/git/cooloney/linux-leds
Pull LED fix from Bryan Wu:
"Pali RohĂ¡r and Pavel Machek reported the LED of Nokia N900 doesn't
work with our latest 3.13-rc6 kernel. Milo fixed the regression here"
* 'leds-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
leds: lp5521/5523: Remove duplicate mutex
Linus Torvalds [Fri, 10 Jan 2014 23:25:02 +0000 (06:25 +0700)]
Merge tag 'pm+acpi-3.13-rc8' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
- Recent commits modifying the lists of C-states in the intel_idle
driver introduced bugs leading to crashes on some systems. Two fixes
from Jiang Liu.
- The ACPI AC driver should receive all types of notifications, but
recent change made it ignore some of them. Fix from Alexander Mezin.
- intel_pstate's validity checks for MSRs it depends on are not
sufficient to catch the lack of support in nested KVM setups, so they
are extended to cover that case. From Dirk Brandewie.
- NEC LZ750/LS has a botched up _BIX method in its ACPI tables, so our
ACPI battery driver needs a quirk for it. From Lan Tianyu.
- The tpm_ppi driver sometimes leaks memory allocated by
acpi_get_name(). Fix from Jiang Liu.
* tag 'pm+acpi-3.13-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
intel_idle: close avn_cstates array with correct marker
Revert "intel_idle: mark states tables with __initdata tag"
ACPI / Battery: Add a _BIX quirk for NEC LZ750/LS
intel_pstate: Add X86_FEATURE_APERFMPERF to cpu match parameters.
ACPI / TPM: fix memory leak when walking ACPI namespace
ACPI / AC: change notification handler type to ACPI_ALL_NOTIFY
Linus Torvalds [Fri, 10 Jan 2014 23:23:57 +0000 (06:23 +0700)]
Merge tag 'mfd-fixes-3.13-2' of git://git./linux/kernel/git/sameo/mfd-fixes
Pull MFD fix from Samuel Ortiz:
"This is the 2nd MFD pull request for 3.13
It only contains one fix for the rtsx_pcr driver. Without it we see a
kernel panic on some machines, when resuming from suspend to RAM"
* tag 'mfd-fixes-3.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes:
mfd: rtsx_pcr: Disable interrupts before cancelling delayed works
Milo Kim [Tue, 3 Dec 2013 01:21:44 +0000 (17:21 -0800)]
leds: lp5521/5523: Remove duplicate mutex
It can be a problem when a pattern is loaded via the firmware interface.
LP55xx common driver has already locked the mutex in 'lp55xx_firmware_loaded()'.
So it should be deleted.
On the other hand, locks are required in store_engine_load()
on updating program memory.
Reported-by: Pali RohĂ¡r <pali.rohar@gmail.com>
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
Cc: <stable@vger.kernel.org>
Chuansheng Liu [Tue, 7 Jan 2014 08:53:34 +0000 (16:53 +0800)]
xfs: Calling destroy_work_on_stack() to pair with INIT_WORK_ONSTACK()
In case CONFIG_DEBUG_OBJECTS_WORK is defined, it is needed to
call destroy_work_on_stack() which frees the debug object to pair
with INIT_WORK_ONSTACK().
Signed-off-by: Liu, Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit
6f96b3063cdd473c68664a190524ed966ac0cd92)
Jie Liu [Wed, 1 Jan 2014 11:28:03 +0000 (19:28 +0800)]
xfs: fix off-by-one error in xfs_attr3_rmt_verify
With CRC check is enabled, if trying to set an attributes value just
equal to the maximum size of XATTR_SIZE_MAX would cause the v3 remote
attr write verification procedure failure, which would yield the back
trace like below:
<snip>
XFS (sda7): Internal error xfs_attr3_rmt_write_verify at line 191 of file fs/xfs/xfs_attr_remote.c
<snip>
Call Trace:
[<
ffffffff816f0042>] dump_stack+0x45/0x56
[<
ffffffffa0d99c8b>] xfs_error_report+0x3b/0x40 [xfs]
[<
ffffffffa0d96edd>] ? _xfs_buf_ioapply+0x6d/0x390 [xfs]
[<
ffffffffa0d99ce5>] xfs_corruption_error+0x55/0x80 [xfs]
[<
ffffffffa0dbef6b>] xfs_attr3_rmt_write_verify+0x14b/0x1a0 [xfs]
[<
ffffffffa0d96edd>] ? _xfs_buf_ioapply+0x6d/0x390 [xfs]
[<
ffffffffa0d97315>] ? xfs_bdstrat_cb+0x55/0xb0 [xfs]
[<
ffffffffa0d96edd>] _xfs_buf_ioapply+0x6d/0x390 [xfs]
[<
ffffffff81184cda>] ? vm_map_ram+0x31a/0x460
[<
ffffffff81097230>] ? wake_up_state+0x20/0x20
[<
ffffffffa0d97315>] ? xfs_bdstrat_cb+0x55/0xb0 [xfs]
[<
ffffffffa0d9726b>] xfs_buf_iorequest+0x6b/0xc0 [xfs]
[<
ffffffffa0d97315>] xfs_bdstrat_cb+0x55/0xb0 [xfs]
[<
ffffffffa0d97906>] xfs_bwrite+0x46/0x80 [xfs]
[<
ffffffffa0dbfa94>] xfs_attr_rmtval_set+0x334/0x490 [xfs]
[<
ffffffffa0db84aa>] xfs_attr_leaf_addname+0x24a/0x410 [xfs]
[<
ffffffffa0db8893>] xfs_attr_set_int+0x223/0x470 [xfs]
[<
ffffffffa0db8b76>] xfs_attr_set+0x96/0xb0 [xfs]
[<
ffffffffa0db13b2>] xfs_xattr_set+0x42/0x70 [xfs]
[<
ffffffff811df9b2>] generic_setxattr+0x62/0x80
[<
ffffffff811e0213>] __vfs_setxattr_noperm+0x63/0x1b0
[<
ffffffff81307afe>] ? evm_inode_setxattr+0xe/0x10
[<
ffffffff811e0415>] vfs_setxattr+0xb5/0xc0
[<
ffffffff811e054e>] setxattr+0x12e/0x1c0
[<
ffffffff811c6e82>] ? final_putname+0x22/0x50
[<
ffffffff811c708b>] ? putname+0x2b/0x40
[<
ffffffff811cc4bf>] ? user_path_at_empty+0x5f/0x90
[<
ffffffff811bdfd9>] ? __sb_start_write+0x49/0xe0
[<
ffffffff81168589>] ? vm_mmap_pgoff+0x99/0xc0
[<
ffffffff811e07df>] SyS_setxattr+0x8f/0xe0
[<
ffffffff81700c2d>] system_call_fastpath+0x1a/0x1f
Tests:
setfattr -n user.longxattr -v `perl -e 'print "A"x65536'` testfile
This patch fix it to check the remote EA size is greater than the
XATTR_SIZE_MAX rather than more than or equal to it, because it's
valid if the specified EA value size is equal to the limitation as
per VFS setxattr interface.
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit
85dd0707f0cad26d60f2dc574d17a5ab948d10f7)
Shahed Shaikh [Thu, 9 Jan 2014 17:41:05 +0000 (12:41 -0500)]
qlcnic: Fix ethtool statistics length calculation
o Consider number of Tx queues while calculating the length of
Tx statistics as part of ethtool stats.
o Calculate statistics lenght properly for 82xx and 83xx adapter
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Manish Chopra [Thu, 9 Jan 2014 17:41:04 +0000 (12:41 -0500)]
qlcnic: Fix bug in TX statistics
o Driver was not updating TX stats so it was not populating
statistics in `ifconfig` command output.
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jason Wang [Fri, 10 Jan 2014 08:18:26 +0000 (16:18 +0800)]
net: core: explicitly select a txq before doing l2 forwarding
Currently, the tx queue were selected implicitly in ndo_dfwd_start_xmit(). The
will cause several issues:
- NETIF_F_LLTX were removed for macvlan, so txq lock were done for macvlan
instead of lower device which misses the necessary txq synchronization for
lower device such as txq stopping or frozen required by dev watchdog or
control path.
- dev_hard_start_xmit() was called with NULL txq which bypasses the net device
watchdog.
- dev_hard_start_xmit() does not check txq everywhere which will lead a crash
when tso is disabled for lower device.
Fix this by explicitly introducing a new param for .ndo_select_queue() for just
selecting queues in the case of l2 forwarding offload. netdev_pick_tx() was also
extended to accept this parameter and dev_queue_xmit_accel() was used to do l2
forwarding transmission.
With this fixes, NETIF_F_LLTX could be preserved for macvlan and there's no need
to check txq against NULL in dev_hard_start_xmit(). Also there's no need to keep
a dedicated ndo_dfwd_start_xmit() and we can just reuse the code of
dev_queue_xmit() to do the transmission.
In the future, it was also required for macvtap l2 forwarding support since it
provides a necessary synchronization method.
Cc: John Fastabend <john.r.fastabend@intel.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: e1000-devel@lists.sourceforge.net
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jason Wang [Fri, 10 Jan 2014 08:18:25 +0000 (16:18 +0800)]
macvlan: forbid L2 fowarding offload for macvtap
L2 fowarding offload will bypass the rx handler of real device. This will make
the packet could not be forwarded to macvtap device. Another problem is the
dev_hard_start_xmit() called for macvtap does not have any synchronization.
Fix this by forbidding L2 forwarding for macvtap.
Cc: John Fastabend <john.r.fastabend@intel.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 10 Jan 2014 18:21:22 +0000 (13:21 -0500)]
Merge branch 'for-davem' of git://git./linux/kernel/git/linville/wireless
John W. Linville says:
====================
For the mac80211 bits, Johannes says:
"I have a fix from Javier for mac80211_hwsim when used with wmediumd
userspace, and a fix from Felix for buffering in AP mode."
For the NFC bits, Samuel says:
"This pull request only contains one fix for a regression introduced with
commit
e29a9e2ae165620d. Without this fix, we can not establish a p2p link
in target mode. Only initiator mode works."
For the iwlwifi bits, Emmanuel says:
"It only includes new device IDs so it's not vital. If you have a pull
request to net.git anyway, I'd happy to have this in."
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Schmidt [Thu, 9 Jan 2014 13:36:27 +0000 (14:36 +0100)]
bnx2x: fix DMA unmapping of TSO split BDs
bnx2x triggers warnings with CONFIG_DMA_API_DEBUG=y:
WARNING: CPU: 0 PID: 2253 at lib/dma-debug.c:887 check_unmap+0xf8/0x920()
bnx2x 0000:28:00.0: DMA-API: device driver frees DMA memory with
different size [device address=0x00000000da2b389e] [map size=1490 bytes]
[unmap size=66 bytes]
The reason is that bnx2x splits a TSO BD into two BDs (headers + data)
using one DMA mapping for both, but it uses only the length of the first
BD when unmapping.
This patch fixes the bug by unmapping the whole length of the two BDs.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 10 Jan 2014 08:57:23 +0000 (15:57 +0700)]
Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux
Pull clock fixes from Mike Turquette:
"Late fixes for clock drivers. All of these fixes are for user-visible
regressions, typically boot failures or other unsafe system
configuration that causes badness"
* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
clk: clk-divider: fix divisor > 255 bug
clk: exynos: File scope reg_save array should depend on PM_SLEEP
clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg clock
ARM: dts: exynos5250: Fix MDMA0 clock number
clk: samsung: exynos5250: Add MDMA0 clocks
clk: samsung: exynos5250: Fix ACP gate register offset
clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
clk: samsung: exynos4: Correct SRC_MFC register
Linus Torvalds [Fri, 10 Jan 2014 08:54:49 +0000 (15:54 +0700)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A few fixes for Renesas platforms to fixup DMA masks (this started
causing errors once the DMA API added checks for valid masks in 3.13)"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: shmobile: mackerel: Fix coherent DMA mask
ARM: shmobile: kzm9g: Fix coherent DMA mask
ARM: shmobile: armadillo: Fix coherent DMA mask
Hannes Frederic Sowa [Wed, 8 Jan 2014 14:43:22 +0000 (15:43 +0100)]
ipv6: add link-local, sit and loopback address with INFINITY_LIFE_TIME
In the past the IFA_PERMANENT flag indicated, that the valid and preferred
lifetime where ignored. Since change
fad8da3e085ddf ("ipv6 addrconf: fix
preferred lifetime state-changing behavior while valid_lft is infinity")
we honour at least the preferred lifetime on those addresses. As such
the valid lifetime gets recalculated and updated to 0.
If loopback address is added manually this problem does not occur.
Also if NetworkManager manages IPv6, those addresses will get added via
inet6_rtm_newaddr and thus will have a correct lifetime, too.
Reported-by: François-Xavier Le Bail <fx.lebail@yahoo.com>
Reported-by: Damien Wyart <damien.wyart@gmail.com>
Fixes:
fad8da3e085ddf ("ipv6 addrconf: fix preferred lifetime state-changing behavior while valid_lft is infinity")
Cc: Yasushi Asano <yasushi.asano@jp.fujitsu.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yuval Mintz [Tue, 7 Jan 2014 10:07:41 +0000 (12:07 +0200)]
bnx2x: prevent WARN during driver unload
Starting with commit 80c33dd "net: add might_sleep() call to napi_disable"
bnx2x fails the might_sleep tests causing a stack trace to appear whenever
the driver is unloaded, as local_bh_disable() is being called before
napi_disable().
This changes the locking schematics related to CONFIG_NET_RX_BUSY_POLL,
preventing the need for calling local_bh_disable() and thus eliminating
the issue.
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rafael J. Wysocki [Fri, 10 Jan 2014 02:08:58 +0000 (03:08 +0100)]
Merge branch 'pm-cpuidle'
* pm-cpuidle:
intel_idle: close avn_cstates array with correct marker
Revert "intel_idle: mark states tables with __initdata tag"
Jiang Liu [Thu, 9 Jan 2014 07:30:27 +0000 (15:30 +0800)]
intel_idle: close avn_cstates array with correct marker
Close avn_cstates array with correct marker to avoid overflow
in function intel_idle_cpu_init().
[rjw: The problem was introduced when commit
22e580d07f65 was merged
on top of
eba682a5aeb6 (intel_idle: shrink states tables).]
Fixes:
22e580d07f65 (intel_idle: Fixed C6 state on Avoton/Rangeley processors)
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
John W. Linville [Thu, 9 Jan 2014 15:19:01 +0000 (10:19 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless into for-davem
Jiang Liu [Thu, 9 Jan 2014 07:30:26 +0000 (15:30 +0800)]
Revert "intel_idle: mark states tables with __initdata tag"
This reverts commit
9d046ccb98085f1d437585f84748c783a04ba240.
Commit
9d046ccb98085 marks all state tables with __initdata, but
the state table may be accessed when doing CPU online, which then
causing system crash as below:
[ 204.188841] BUG: unable to handle kernel paging request at
ffffffff8227cce8
[ 204.196844] IP: [<
ffffffff814aa1c0>] intel_idle_cpu_init+0x40/0x130
[ 204.203996] PGD 1e11067 PUD 1e12063 PMD
455859063 PTE
800000000227c062
[ 204.211638] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
[ 204.216975] Modules linked in: x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd gpio_ich microcode joydev sb_edac edac_core ipmi_si lpc_ich ipmi_msghandler lp tpm_tis parport wmi mac_hid acpi_pad hid_generic ixgbe isci usbhid dca hid libsas ptp ahci libahci scsi_transport_sas megaraid_sas pps_core mdio
[ 204.262815] CPU: 11 PID: 1489 Comm: bash Not tainted 3.13.0-rc7+ #48
[ 204.269993] Hardware name: Intel Corporation BRICKLAND/BRICKLAND, BIOS BRIVTIN1.86B.0047.L09.
1312061514 12/06/2013
[ 204.281646] task:
ffff8804303a24a0 ti:
ffff880440fac000 task.ti:
ffff880440fac000
[ 204.290311] RIP: 0010:[<
ffffffff814aa1c0>] [<
ffffffff814aa1c0>] intel_idle_cpu_init+0x40/0x130
[ 204.300184] RSP: 0018:
ffff880440fadd28 EFLAGS:
00010286
[ 204.306192] RAX:
ffffffff8227cca0 RBX:
ffffe8fff1a03400 RCX:
0000000000000007
[ 204.314244] RDX:
ffff88045f400000 RSI:
0000000000000009 RDI:
0000000000001120
[ 204.322296] RBP:
ffff880440fadd38 R08:
0000000000000000 R09:
0000000000000001
[ 204.330411] R10:
0000000000000001 R11:
0000000000000000 R12:
000000000000001e
[ 204.338482] R13:
00000000ffffffdb R14:
0000000000000001 R15:
0000000000000000
[ 204.346743] FS:
00007f64f7b0c740(0000) GS:
ffff88045ce00000(0000) knlGS:
0000000000000000
[ 204.355919] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
[ 204.362449] CR2:
ffffffff8227cce8 CR3:
0000000444ab0000 CR4:
00000000001407e0
[ 204.370520] Stack:
[ 204.372853]
000000000000001e ffffffff81f10240 ffff880440fadd50 ffffffff814aa307
[ 204.381519]
ffffffff81ea80e0 ffff880440fadda0 ffffffff8185a230 0000000000000000
[ 204.390196]
000000000000001e 0000000000000002 0000000000000002 0000000000000000
[ 204.398856] Call Trace:
[ 204.401683] [<
ffffffff814aa307>] cpu_hotplug_notify+0x57/0x70
[ 204.408638] [<
ffffffff8185a230>] notifier_call_chain+0x100/0x150
[ 204.415553] [<
ffffffff810a7dae>] __raw_notifier_call_chain+0xe/0x10
[ 204.422772] [<
ffffffff81072163>] cpu_notify+0x23/0x50
[ 204.428616] [<
ffffffff810723b2>] _cpu_up+0x132/0x1a0
[ 204.434361] [<
ffffffff8107249d>] cpu_up+0x7d/0xa0
[ 204.439819] [<
ffffffff81836c9c>] cpu_subsys_online+0x3c/0x90
[ 204.446345] [<
ffffffff81554625>] device_online+0x45/0xa0
[ 204.452471] [<
ffffffff815546ce>] online_store+0x4e/0x80
[ 204.458511] [<
ffffffff815519a8>] dev_attr_store+0x18/0x30
[ 204.464744] [<
ffffffff812a68f1>] sysfs_write_file+0x151/0x1c0
[ 204.471681] [<
ffffffff81217ef1>] vfs_write+0xe1/0x160
[ 204.477524] [<
ffffffff8121889c>] SyS_write+0x4c/0x90
[ 204.483270] [<
ffffffff8185f2ed>] system_call_fastpath+0x1a/0x1f
[ 204.490081] Code: 41 54 41 89 fc 8b 3d 48 25 85 01 53 48 8b 1d 30 25 85 01 48 03 1c c5 40 90 fb 81 48 8b 05 19 25 85 01 c7 43 0c 01 00 00 00 66 90 <48> 83 78 48 00 74 4f 41 83 c0 01 41 39 f0 7e 10 48 c7 c7 38 79
[ 204.515723] RIP [<
ffffffff814aa1c0>] intel_idle_cpu_init+0x40/0x130
[ 204.522996] RSP <
ffff880440fadd28>
[ 204.526976] CR2:
ffffffff8227cce8
[ 204.530766] ---[ end trace
336f56cc3d1cfc8c ]---
Fixes:
9d046ccb98085 (intel_idle: mark states tables with __initdata tag)
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Linus Torvalds [Thu, 9 Jan 2014 01:09:26 +0000 (09:09 +0800)]
Merge branch 'parisc-3.13' of git://git./linux/kernel/git/deller/parisc-linux
Pull parisc fix from Helge Deller:
"This patch fixes the kmap/kunmap implementation on parisc and finally
makes AIO work on parisc"
* 'parisc-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Ensure full cache coherency for kmap/kunmap
Linus Torvalds [Thu, 9 Jan 2014 01:08:23 +0000 (09:08 +0800)]
Merge branch 'for-3.13-fixes' of git://git./linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
"Late fixes for libata. Nothing too interesting. Adding missing PM
callbacks to satat_sis and an additional PCI ID for ahci"
* 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
sata_sis: missing PM support
ahci: add PCI ID for Marvell 88SE9170 SATA controller
John David Anglin [Mon, 6 Jan 2014 02:25:00 +0000 (21:25 -0500)]
parisc: Ensure full cache coherency for kmap/kunmap
Helge Deller noted a few weeks ago problems with the AIO support on
parisc. This change is the result of numerous iterations on how best to
deal with this problem.
The solution adopted here is to provide full cache coherency in a
uniform manner on all parisc systems. This involves calling
flush_dcache_page() on kmap operations and flush_kernel_dcache_page() on
kunmap operations. As a result, the copy_user_page() and
clear_user_page() functions can be removed and the overall code is
simpler.
The change ensures that both userspace and kernel aliases to a mapped
page are invalidated and flushed. This is necessary for the correct
operation of PA8800 and PA8900 based systems which do not support
inequivalent aliases.
With this change, I have observed no cache related issues on c8000 and
rp3440. It is now possible for example to do kernel builds with "-j64"
on four way systems.
On systems using XFS file systems, the patch recently posted by Mikulas
Patocka to "fix crash using XFS on loopback" is needed to avoid a hang
caused by an uninitialized lock passed to flush_dcache_page() in the
page struct.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # v3.9+
Signed-off-by: Helge Deller <deller@gmx.de>
John W. Linville [Wed, 8 Jan 2014 18:36:17 +0000 (13:36 -0500)]
Merge tag 'nfc-fixes-3.13-1' of git://git./linux/kernel/git/sameo/nfc-fixes
Samuel Ortiz <sameo@linux.intel.com> says:
"This is the first NFC fixes pull request for 3.13.
It only contains one fix for a regression introduced with commit
e29a9e2ae165620d. Without this fix, we can not establish a p2p link in
target mode. Only initiator mode works."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
James Hogan [Mon, 16 Dec 2013 10:41:38 +0000 (10:41 +0000)]
clk: clk-divider: fix divisor > 255 bug
Commit
6d9252bd9a4bb (clk: Add support for power of two type dividers)
merged in v3.6 added the _get_val function to convert a divisor value to
a register field value depending on the flags. However it used the type
u8 for the div field, causing divisors larger than 255 to be masked
and the resultant clock rate to be too high.
E.g. in my case an 11bit divider was supposed to divide 24.576 MHz down
to 32.768KHz. The divisor was correctly calculated as 750 (0x2ee). This
was masked to 238 (0xee) resulting in a frequency of 103.26KHz.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: stable@vger.kernel.org
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Dave Airlie [Wed, 8 Jan 2014 07:57:45 +0000 (17:57 +1000)]
Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/nouveau/linux-2.6 into drm-fixes
misc fixes for nouveau, one more msi rearm, regression fix for old bioses
crash and leak fixes.
* 'drm-nouveau-next' of git://anongit.freedesktop.org/nouveau/linux-2.6:
drm/nouveau/nouveau: fix memory leak in nouveau_crtc_page_flip()
drm/nouveau/bios: fix offset calculation for BMPv1 bioses
drm/nouveau: return offset of allocated notifier
drm/nouveau/bios: make jump conditional
drm/nvce/mc: fix msi rearm on GF114
drm/nvc0/gr: fix mthd data submission
drm/nouveau: populate master subdev pointer only when fully constructed
Dave Airlie [Wed, 8 Jan 2014 07:55:44 +0000 (17:55 +1000)]
Merge tag 'drm-intel-fixes-2014-01-08' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
Just a revert (gen4 backlight seems a lost cause) and a tlb coherency fix
for bdw, plus the patch to sign up Jani for co-maintainer. Thanks to Ben
for taking care of -fixes while I've enjoyed a bit of vacation.
* tag 'drm-intel-fixes-2014-01-08' of git://people.freedesktop.org/~danvet/drm-intel:
MAINTAINERS: Updates for drm/i915
Revert "drm/i915: assume all GM45 Acer laptops use inverted backlight PWM"
drm/i915/bdw: Flush system agent on gen8 also
Christian Engelmayer [Sun, 29 Dec 2013 22:08:54 +0000 (23:08 +0100)]
drm/nouveau/nouveau: fix memory leak in nouveau_crtc_page_flip()
Fix a memory leak in the nouveau_crtc_page_flip() error handling path.
Signed-off-by: Christian Engelmayer <cengelma@gmx.at>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ilia Mirkin [Tue, 7 Jan 2014 17:33:59 +0000 (12:33 -0500)]
drm/nouveau/bios: fix offset calculation for BMPv1 bioses
The only BIOS on record that needs the 14 offset has a bios major
version 2 but BMP version 1.01. Another bunch of BIOSes that need the 18
offset have BMP version 2.01 or 5.01 or higher. So instead of looking at the
bios major version, look at the BMP version. BIOSes with BMP version 0
do not contain a detectable script, so always return 0 for them.
See https://bugs.freedesktop.org/show_bug.cgi?id=68835
Reported-by: Mauro Molinari <mauromol@tiscali.it>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
David S. Miller [Tue, 7 Jan 2014 23:38:03 +0000 (18:38 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:
====================
The following patchset contains two patches:
* fix the IRC NAT helper which was broken when adding (incomplete) IPv6
support, from Daniel Borkmann.
* Refine the previous bugtrap that Jesper added to catch problems for the
usage of the sequence adjustment extension in IPVs in Dec 16th, it may
spam messages in case of finding a real bug.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Erik Hugne [Tue, 7 Jan 2014 20:51:36 +0000 (15:51 -0500)]
tipc: correctly unlink packets from deferred packet queue
When we pull a received packet from a link's 'deferred packets' queue
for processing, its 'next' pointer is not cleared, and still refers to
the next packet in that queue, if any. This is incorrect, but caused
no harm before commit
40ba3cdf542a469aaa9083fa041656e59b109b90 ("tipc:
message reassembly using fragment chain") was introduced. After that
commit, it may sometimes lead to the following oops:
general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC
Modules linked in: tipc
CPU: 4 PID: 0 Comm: swapper/4 Tainted: G W 3.13.0-rc2+ #6
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
task:
ffff880017af4880 ti:
ffff880017aee000 task.ti:
ffff880017aee000
RIP: 0010:[<
ffffffff81710694>] [<
ffffffff81710694>] skb_try_coalesce+0x44/0x3d0
RSP: 0018:
ffff880016603a78 EFLAGS:
00010212
RAX:
6b6b6b6bd6d6d6d6 RBX:
ffff880013106ac0 RCX:
ffff880016603ad0
RDX:
ffff880016603ad7 RSI:
ffff88001223ed00 RDI:
ffff880013106ac0
RBP:
ffff880016603ab8 R08:
0000000000000000 R09:
0000000000000000
R10:
0000000000000001 R11:
0000000000000000 R12:
ffff88001223ed00
R13:
ffff880016603ad0 R14:
000000000000058c R15:
ffff880012297650
FS:
0000000000000000(0000) GS:
ffff880016600000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
CR2:
000000000805b000 CR3:
0000000011f5d000 CR4:
00000000000006e0
Stack:
ffff880016603a88 ffffffff810a38ed ffff880016603aa8 ffff88001223ed00
0000000000000001 ffff880012297648 ffff880016603b68 ffff880012297650
ffff880016603b08 ffffffffa0006c51 ffff880016603b08 00ffffffa00005fc
Call Trace:
<IRQ>
[<
ffffffff810a38ed>] ? trace_hardirqs_on+0xd/0x10
[<
ffffffffa0006c51>] tipc_link_recv_fragment+0xd1/0x1b0 [tipc]
[<
ffffffffa0007214>] tipc_recv_msg+0x4e4/0x920 [tipc]
[<
ffffffffa00016f0>] ? tipc_l2_rcv_msg+0x40/0x250 [tipc]
[<
ffffffffa000177c>] tipc_l2_rcv_msg+0xcc/0x250 [tipc]
[<
ffffffffa00016f0>] ? tipc_l2_rcv_msg+0x40/0x250 [tipc]
[<
ffffffff8171e65b>] __netif_receive_skb_core+0x80b/0xd00
[<
ffffffff8171df94>] ? __netif_receive_skb_core+0x144/0xd00
[<
ffffffff8171eb76>] __netif_receive_skb+0x26/0x70
[<
ffffffff8171ed6d>] netif_receive_skb+0x2d/0x200
[<
ffffffff8171fe70>] napi_gro_receive+0xb0/0x130
[<
ffffffff815647c2>] e1000_clean_rx_irq+0x2c2/0x530
[<
ffffffff81565986>] e1000_clean+0x266/0x9c0
[<
ffffffff81985f7b>] ? notifier_call_chain+0x2b/0x160
[<
ffffffff8171f971>] net_rx_action+0x141/0x310
[<
ffffffff81051c1b>] __do_softirq+0xeb/0x480
[<
ffffffff819817bb>] ? _raw_spin_unlock+0x2b/0x40
[<
ffffffff810b8c42>] ? handle_fasteoi_irq+0x72/0x100
[<
ffffffff81052346>] irq_exit+0x96/0xc0
[<
ffffffff8198cbc3>] do_IRQ+0x63/0xe0
[<
ffffffff81981def>] common_interrupt+0x6f/0x6f
<EOI>
This happens when the last fragment of a message has passed through the
the receiving link's 'deferred packets' queue, and at least one other
packet was added to that queue while it was there. After the fragment
chain with the complete message has been successfully delivered to the
receiving socket, it is released. Since 'next' pointer of the last
fragment in the released chain now is non-NULL, we get the crash shown
above.
We fix this by clearing the 'next' pointer of all received packets,
including those being pulled from the 'deferred' queue, before they
undergo any further processing.
Fixes:
40ba3cdf542a4 ("tipc: message reassembly using fragment chain")
Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Reported-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Tue, 7 Jan 2014 07:39:43 +0000 (15:39 +0800)]
ipv6: pcpu_tstats.syncp should be initialised in ip6_vti.c
initialise pcpu_tstats.syncp to kill the calltrace
[ 11.973950] Call Trace:
[ 11.973950] [<
819bbaff>] dump_stack+0x48/0x60
[ 11.973950] [<
819bbaff>] dump_stack+0x48/0x60
[ 11.973950] [<
81078dcf>] __lock_acquire.isra.22+0x1bf/0xc10
[ 11.973950] [<
81078dcf>] __lock_acquire.isra.22+0x1bf/0xc10
[ 11.973950] [<
81079fa7>] lock_acquire+0x77/0xa0
[ 11.973950] [<
81079fa7>] lock_acquire+0x77/0xa0
[ 11.973950] [<
817ca7ab>] ? dev_get_stats+0xcb/0x130
[ 11.973950] [<
817ca7ab>] ? dev_get_stats+0xcb/0x130
[ 11.973950] [<
8183862d>] ip_tunnel_get_stats64+0x6d/0x230
[ 11.973950] [<
8183862d>] ip_tunnel_get_stats64+0x6d/0x230
[ 11.973950] [<
817ca7ab>] ? dev_get_stats+0xcb/0x130
[ 11.973950] [<
817ca7ab>] ? dev_get_stats+0xcb/0x130
[ 11.973950] [<
811cf8c1>] ? __nla_reserve+0x21/0xd0
[ 11.973950] [<
811cf8c1>] ? __nla_reserve+0x21/0xd0
[ 11.973950] [<
817ca7ab>] dev_get_stats+0xcb/0x130
[ 11.973950] [<
817ca7ab>] dev_get_stats+0xcb/0x130
[ 11.973950] [<
817d5409>] rtnl_fill_ifinfo+0x569/0xe20
[ 11.973950] [<
817d5409>] rtnl_fill_ifinfo+0x569/0xe20
[ 11.973950] [<
810352e0>] ? kvm_clock_read+0x20/0x30
[ 11.973950] [<
810352e0>] ? kvm_clock_read+0x20/0x30
[ 11.973950] [<
81008e38>] ? sched_clock+0x8/0x10
[ 11.973950] [<
81008e38>] ? sched_clock+0x8/0x10
[ 11.973950] [<
8106ba45>] ? sched_clock_local+0x25/0x170
[ 11.973950] [<
8106ba45>] ? sched_clock_local+0x25/0x170
[ 11.973950] [<
810da6bd>] ? __kmalloc+0x3d/0x90
[ 11.973950] [<
810da6bd>] ? __kmalloc+0x3d/0x90
[ 11.973950] [<
817b8c10>] ? __kmalloc_reserve.isra.41+0x20/0x70
[ 11.973950] [<
817b8c10>] ? __kmalloc_reserve.isra.41+0x20/0x70
[ 11.973950] [<
810da81a>] ? slob_alloc_node+0x2a/0x60
[ 11.973950] [<
810da81a>] ? slob_alloc_node+0x2a/0x60
[ 11.973950] [<
817b919a>] ? __alloc_skb+0x6a/0x2b0
[ 11.973950] [<
817b919a>] ? __alloc_skb+0x6a/0x2b0
[ 11.973950] [<
817d8795>] rtmsg_ifinfo+0x65/0xe0
[ 11.973950] [<
817d8795>] rtmsg_ifinfo+0x65/0xe0
[ 11.973950] [<
817cbd31>] register_netdevice+0x531/0x5a0
[ 11.973950] [<
817cbd31>] register_netdevice+0x531/0x5a0
[ 11.973950] [<
81892b87>] ? ip6_tnl_get_cap+0x27/0x90
[ 11.973950] [<
81892b87>] ? ip6_tnl_get_cap+0x27/0x90
[ 11.973950] [<
817cbdb6>] register_netdev+0x16/0x30
[ 11.973950] [<
817cbdb6>] register_netdev+0x16/0x30
[ 11.973950] [<
81f574a6>] vti6_init_net+0x1c4/0x1d4
[ 11.973950] [<
81f574a6>] vti6_init_net+0x1c4/0x1d4
[ 11.973950] [<
81f573af>] ? vti6_init_net+0xcd/0x1d4
[ 11.973950] [<
81f573af>] ? vti6_init_net+0xcd/0x1d4
[ 11.973950] [<
817c16df>] ops_init.constprop.11+0x17f/0x1c0
[ 11.973950] [<
817c16df>] ops_init.constprop.11+0x17f/0x1c0
[ 11.973950] [<
817c1779>] register_pernet_operations.isra.9+0x59/0x90
[ 11.973950] [<
817c1779>] register_pernet_operations.isra.9+0x59/0x90
[ 11.973950] [<
817c18d1>] register_pernet_device+0x21/0x60
[ 11.973950] [<
817c18d1>] register_pernet_device+0x21/0x60
[ 11.973950] [<
81f574b6>] ? vti6_init_net+0x1d4/0x1d4
[ 11.973950] [<
81f574b6>] ? vti6_init_net+0x1d4/0x1d4
[ 11.973950] [<
81f574c7>] vti6_tunnel_init+0x11/0x68
[ 11.973950] [<
81f574c7>] vti6_tunnel_init+0x11/0x68
[ 11.973950] [<
81f572a1>] ? mip6_init+0x73/0xb4
[ 11.973950] [<
81f572a1>] ? mip6_init+0x73/0xb4
[ 11.973950] [<
81f0cba4>] do_one_initcall+0xbb/0x15b
[ 11.973950] [<
81f0cba4>] do_one_initcall+0xbb/0x15b
[ 11.973950] [<
811a00d8>] ? sha_transform+0x528/0x1150
[ 11.973950] [<
811a00d8>] ? sha_transform+0x528/0x1150
[ 11.973950] [<
81f0c544>] ? repair_env_string+0x12/0x51
[ 11.973950] [<
81f0c544>] ? repair_env_string+0x12/0x51
[ 11.973950] [<
8105c30d>] ? parse_args+0x2ad/0x440
[ 11.973950] [<
8105c30d>] ? parse_args+0x2ad/0x440
[ 11.973950] [<
810546be>] ? __usermodehelper_set_disable_depth+0x3e/0x50
[ 11.973950] [<
810546be>] ? __usermodehelper_set_disable_depth+0x3e/0x50
[ 11.973950] [<
81f0cd27>] kernel_init_freeable+0xe3/0x182
[ 11.973950] [<
81f0cd27>] kernel_init_freeable+0xe3/0x182
[ 11.973950] [<
81f0c532>] ? do_early_param+0x7a/0x7a
[ 11.973950] [<
81f0c532>] ? do_early_param+0x7a/0x7a
[ 11.973950] [<
819b5b1b>] kernel_init+0xb/0x100
[ 11.973950] [<
819b5b1b>] kernel_init+0xb/0x100
[ 11.973950] [<
819cebf7>] ret_from_kernel_thread+0x1b/0x28
[ 11.973950] [<
819cebf7>] ret_from_kernel_thread+0x1b/0x28
[ 11.973950] [<
819b5b10>] ? rest_init+0xc0/0xc0
[ 11.973950] [<
819b5b10>] ? rest_init+0xc0/0xc0
Before
469bdcefdc ("ipv6: fix the use of pcpu_tstats in ip6_vti.c"),
the pcpu_tstats.syncp is not used to pretect the 64bit elements of
pcpu_tstats, so not appear this calltrace.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Vetter [Tue, 7 Jan 2014 08:24:31 +0000 (09:24 +0100)]
MAINTAINERS: Updates for drm/i915
Jani for co-maintainer!
Jani has been a really active bug-scrubber in the past few months.
I've asked him whether he wants to do this in a more official capacity
and he agreed. I've already chatted with Dave and Jesse and they
support this.
Note that everyone can't now just relax because "Jani will do all the
bug scrubbing" - au contraire expect more nagging and poking now that
we have more bandwidth.
Longer-term the plan is to share more of the maintainer duties, but we
need to fix up the infrastructure a bit first (like moving the git
repo to a common location).
While at it also add the newly set-up patchwork instance.
Cc: Dave Airlie <airlied@gmail.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Bob Gleitsmann [Sun, 5 Jan 2014 22:59:07 +0000 (08:59 +1000)]
drm/nouveau: return offset of allocated notifier
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ilia Mirkin [Mon, 6 Jan 2014 01:07:02 +0000 (20:07 -0500)]
drm/nouveau/bios: make jump conditional
This fixes a hang in VBIOS scripts of the form "condition; jump".
The jump used to always be executed, while now it will only be
executed if the condition is true.
See https://bugs.freedesktop.org/show_bug.cgi?id=72943
Reported-by: Darcy BrĂ¡s da Silva <dardevelin@cidadecool.com>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: stable@vger.kernel.org