10 Nov, 2012
1 commit
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Pull Xen fixes from Konrad Rzeszutek Wilk:
"There are three ARM compile fixes (we forgot to export certain
functions and if the drivers are built as an module - we go belly-up).There is also an mismatch of irq_enter() / exit_idle() calls sequence
which were fixed some time ago in other piece of codes, but failed to
appear in the Xen code.Lastly a fix for to help in the field with troubleshooting in case we
cannot get the appropriate parameter and also fallback code when
working with very old hypervisors."Bug-fixes:
- Fix compile issues on ARM.
- Fix hypercall fallback code for old hypervisors.
- Print out which HVM parameter failed if it fails.
- Fix idle notifier call after irq_enter.* tag 'stable/for-linus-3.7-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/arm: Fix compile errors when drivers are compiled as modules (export more).
xen/arm: Fix compile errors when drivers are compiled as modules.
xen/generic: Disable fallback build on ARM.
xen/events: fix RCU warning, or Call idle notifier after irq_enter()
xen/hvm: If we fail to fetch an HVM parameter print out which flag it is.
xen/hypercall: fix hypercall fallback code for very old hypervisors
09 Nov, 2012
1 commit
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The commit 911dec0db4de6ccc544178a8ddaf9cec0a11d533
"xen/arm: Fix compile errors when drivers are compiled as modules." exports
the neccessary functions. But to guard ourselves against out-of-tree modules
and future drivers hitting this, lets export all of the relevant
hypercalls.Acked-by: Arnd Bergmann
Signed-off-by: Stefano Stabellini
Signed-off-by: Konrad Rzeszutek Wilk
07 Nov, 2012
2 commits
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We end up with:
ERROR: "HYPERVISOR_event_channel_op" [drivers/xen/xen-gntdev.ko] undefined!
ERROR: "privcmd_call" [drivers/xen/xen-privcmd.ko] undefined!
ERROR: "HYPERVISOR_grant_table_op" [drivers/net/xen-netback/xen-netback.ko] undefined!and this patch exports said function (which is implemented in hypercall.S).
Acked-by: Stefano Stabellini
Acked-by: Ian Campbell
Signed-off-by: Konrad Rzeszutek Wilk -
Pull arm fixes from Russell King:
"Not much here again.The two most notable things here are the sched_clock() fix, which was
causing problems with the scheduling of threaded IRQs after a suspend
event, and the vfp fix, which afaik has only been seen on some older
OMAP boards. Nevertheless, both are fairly important fixes."* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7569/1: mm: uninitialized warning corrections
ARM: 7567/1: io: avoid GCC's offsettable addressing modes for halfword accesses
ARM: 7566/1: vfp: fix save and restore when running on pre-VFPv3 and CONFIG_VFPv3 set
ARM: 7565/1: sched: stop sched_clock() during suspend
04 Nov, 2012
1 commit
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The variables here are really not used uninitialized.
arch/arm/mm/alignment.c: In function 'do_alignment':
arch/arm/mm/alignment.c:327:15: warning: 'offset.un' may be used uninitialized in this function [-Wmaybe-uninitialized]
arch/arm/mm/alignment.c:748:21: note: 'offset.un' was declared hereSigned-off-by: Viresh Kumar
Signed-off-by: Russell King
03 Nov, 2012
1 commit
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Pull Xen bugfixes from Konrad Rzeszutek Wilk:
- Use appropriate macros instead of hand-rolling our own (ARM).
- Fixes if FB/KBD closed unexpectedly.
- Fix memory leak in /dev/gntdev ioctl calls.
- Fix overflow check in xenbus_file_write.
- Document cleanup.
- Performance optimization when migrating guests.* tag 'stable/for-linus-3.7-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/mmu: Use Xen specific TLB flush instead of the generic one.
xen/arm: use the __HVC macro
xen/xenbus: fix overflow check in xenbus_file_write()
xen-kbdfront: handle backend CLOSED without CLOSING
xen-fbfront: handle backend CLOSED without CLOSING
xen/gntdev: don't leak memory from IOCTL_GNTDEV_MAP_GRANT_REF
x86: remove obsolete comment from asm/xen/hypervisor.h
30 Oct, 2012
1 commit
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Use the new __HVC macro in hypercall.S.
Signed-off-by: Stefano Stabellini
Signed-off-by: Konrad Rzeszutek Wilk
29 Oct, 2012
4 commits
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Using the 'o' memory constraint in inline assembly can result in GCC
generating invalid immediate offsets for memory access instructions with
reduced addressing capabilities (i.e. smaller than 12-bit immediate
offsets):http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54983
As there is no constraint to specify the exact addressing mode we need,
fallback to using 'Q' exclusively for halfword I/O accesses. This may
emit an additional add instruction (using an extra register) in order
to construct the address but it will always be accepted by GAS.Reported-by: Bastian Hecht
Signed-off-by: Will Deacon
Signed-off-by: Russell King -
After commit 846a136881b8f73c1f74250bf6acfaa309cab1f2 ("ARM: vfp: fix
saving d16-d31 vfp registers on v6+ kernels"), the OMAP 2430SDP board
started crashing during boot with omap2plus_defconfig:[ 3.875122] mmcblk0: mmc0:e624 SD04G 3.69 GiB
[ 3.915954] mmcblk0: p1
[ 4.086639] Internal error: Oops - undefined instruction: 0 [#1] SMP ARM
[ 4.093719] Modules linked in:
[ 4.096954] CPU: 0 Not tainted (3.6.0-02232-g759e00b #570)
[ 4.103149] PC is at vfp_reload_hw+0x1c/0x44
[ 4.107666] LR is at __und_usr_fault_32+0x0/0x8It turns out that the context save/restore fix unmasked a latent bug
in commit 5aaf254409f8d58229107b59507a8235b715a960 ("ARM: 6203/1: Make
VFPv3 usable on ARMv6"). When CONFIG_VFPv3 is set, but the kernel is
booted on a pre-VFPv3 core, the code attempts to save and restore the
d16-d31 VFP registers. These are only present on non-D16 VFPv3+, so
this results in an undefined instruction exception. The code didn't
crash before commit 846a136 because the save and restore code was
only touching d0-d15, present on all VFP.Fix by implementing a request from Russell King to add a new HWCAP
flag that affirmatively indicates the presence of the d16-d31
registers:http://marc.info/?l=linux-arm-kernel&m=135013547905283&w=2
and some feedback from Måns to clarify the name of the HWCAP flag.
Signed-off-by: Paul Walmsley
Cc: Tony Lindgren
Cc: Catalin Marinas
Cc: Dave Martin
Cc: Måns Rullgård
Signed-off-by: Russell King -
The scheduler imposes a requirement to sched_clock()
which is to stop the clock during suspend, if we don't
do that any RT thread will be rescheduled in the future
which might cause any sort of problems.This became an issue on OMAP when we converted omap-i2c.c
to use threaded IRQs, it turned out that depending on how
much time we spent on suspend, the I2C IRQ thread would
end up being rescheduled so far in the future that I2C
transfers would timeout and, because omap_hsmmc depends
on an I2C-connected device to detect if an MMC card is
inserted in the slot, our rootfs would just vanish.arch/arm/kernel/sched_clock.c already had an optional
implementation (sched_clock_needs_suspend()) which would
handle scheduler's requirement properly, what this patch
does is simply to make that implementation non-optional.Note that this has the side-effect that printk timings
won't reflect the actual time spent on suspend so other
methods to measure that will have to be used.This has been tested with beagleboard XM (OMAP3630) and
pandaboard rev A3 (OMAP4430). Suspend to RAM is now working
after this patch.Thanks to Kevin Hilman for helping out with debugging.
Acked-by: Kevin Hilman
Acked-by: Linus Walleij
Signed-off-by: Felipe Balbi
Signed-off-by: Russell King -
Pull arm-soc fixes from Arnd Bergmann:
"Bug fixes for a number of ARM platforms, mostly OMAP, imx and at91.These come a little later than I had hoped but unfortunately we had a
few of these patches cause regressions themselves and had to work out
how to deal with those in the meantime."* tag 'fixes-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits)
Revert "ARM i.MX25: Fix PWM per clock lookups"
ARM: versatile: fix versatile_defconfig
ARM: mvebu: update defconfig with 3.7 changes
ARM: at91: fix at91x40 build
ARM: socfpga: Fix socfpga compilation with early_printk() enabled
ARM: SPEAr: Remove unused empty files
MAINTAINERS: Add arm-soc tree entry
ARM: dts: mxs: add the "clock-names" for gpmi-nand
ARM: ux500: Correct SDI5 address and add some format changes
ARM: ux500: Specify AMBA Primecell IDs for Nomadik I2C in DT
ARM: ux500: Fix build error relating to IRQCHIP_SKIP_SET_WAKE
ARM: at91: drop duplicated config SOC_AT91SAM9 entry
ARM: at91/i2c: change id to let i2c-at91 work
ARM: at91/i2c: change id to let i2c-gpio work
ARM: at91/dts: at91sam9g20ek_common: Fix typos in buttons labels.
ARM: at91: fix external interrupt specification in board code
ARM: at91: fix external interrupts in non-DT case
ARM: at91: at91sam9g10: fix SOC type detection
ARM: at91/tc: fix typo in the DT document
ARM: AM33XX: Fix configuration of dmtimer parent clock by dmtimer driverDate:Wed, 17 Oct 2012 13:55:55 -0500
...
27 Oct, 2012
5 commits
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This reverts commit 92063cee118655d25b50d04eb77b012f3287357a, it
was applied prematurely, causing this build error for
imx_v4_v5_defconfig:arch/arm/mach-imx/clk-imx25.c: In function 'mx25_clocks_init':
arch/arm/mach-imx/clk-imx25.c:206:26: error: 'pwm_ipg_per' undeclared (first use in this function)
arch/arm/mach-imx/clk-imx25.c:206:26: note: each undeclared identifier is reported only once for each function it appears inSascha Hauer explains:
> There are several gates missing in clk-imx25.c. I have a patch which
> adds support for them and I seem to have missed that the above depends
> on it.Signed-off-by: Arnd Bergmann
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With the introduction of CONFIG_ARCH_MULTIPLATFORM, versatile is
no longer the default platform, so we need to enable
CONFIG_ARCH_VERSATILE explicitly in order for that to be selected
rather than the multiplatform configuration.Signed-off-by: Arnd Bergmann
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The split of 370 and XP into two Kconfig options and the multiplatform
kernel support has changed a few Kconfig symbols, so let's update the
mvebu_defconfig file with the latest changes.Signed-off-by: Thomas Petazzoni
Signed-off-by: Arnd Bergmann -
patch 738a0fd7 "ARM: at91: fix external interrupts in non-DT case"
fixed a run-time error on some at91 platforms but did not apply
the same change to at91x40, which now doesn't build.This changes at91x40 in the same way that the other platforms
were changed.Signed-off-by: Arnd Bergmann
Acked-by: Jean-Christophe PLAGNIOL-VILLARD -
Pull serial fix from Greg Kroah-Hartman:
"Here is one patch, a revert of a omap serial driver patch that was
causing problems, for your 3.7-rc tree.Signed-off-by: Greg Kroah-Hartman "
* tag 'tty-3.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "serial: omap: fix software flow control"
26 Oct, 2012
5 commits
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* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7779: I/O address abuse cleanup -
…/git/kgene/linux-samsung into fixes
From Kukjin Kim <kgene.kim@samsung.com>:
One is spi stuff for fix the device names for the different subtypes of
the spi controller. And the other is adding missing .smp field for
exynos4-dt and fixing memory sections for exynos4210-trats board.* 'v3.7-samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Set .smp field of machine descriptor for exynos4-dt
ARM: dts: Split memory into 4 sections for exynos4210-trats
ARM: SAMSUNG: Add naming of s3c64xx-spi devicesSigned-off-by: Arnd Bergmann <arnd@arndb.de>
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This reverts commit 871ae57adc5ed092c1341f411514d0e8482e2611, which is
scheduled for v3.8 and accidently got into v3.7-rc series.Signed-off-by: Marek Szyprowski
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Pull ARM fixes from Russell King:
"A random collection of various fixes, mainly from Arnd and a few other
people. Not thing really stands out here."* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: drop experimental status for hotplug and Thumb2
ARM: 7560/1: SMP_TWD: use DIV_ROUND_CLOSEST() for periodic mode
ARM: 7559/1: smp: switch away from the idmap before updating init_mm.mm_count
ARM: 7556/1: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD
ARM: 7555/1: kexec: fix segment memory addresses check
ARM: warnings in arch/arm/include/asm/uaccess.h
ARM: binfmt_flat: unused variable 'persistent'
ARM: be really quiet when building with 'make -s'
ARM: pass -marm to gcc by default for both C and assembler
ARM: Xen: fix initial build problems
ARM: export default read_current_timer
ARM: Fix another build warning in arch/arm/mm/alignment.c
ARM: export set_irq_flags
ARM: kprobes: make more tests conditional -
Pull CMA and DMA-mapping fixes from Marek Szyprowski:
"This consists mainly of a set of one-liner fixes and cleanups for a
few minor issues identified in both Contiguous Memory Allocator code
and ARM DMA-mapping subsystem."* 'fixes_for_linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
ARM: mm: Remove unused arm_vmregion priv field
ARM: dma-mapping: fix build warning in __dma_alloc()
ARM: dma-mapping: support debug_dma_mapping_error
mm: cma: alloc_contig_range: return early for err path
drivers: cma: Fix wrong CMA selected region size default value
drivers: dma-coherent: Fix typo in dma_mmap_from_coherent documentation
drivers: dma-contiguous: Don't redefine SZ_1M
25 Oct, 2012
18 commits
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This fixes early_printk() compilation for
socfpga. (senduart/busyuart/waituart were missing). It does that by
making Picochip code generic.Signed-off-by: Pavel Machek
Acked-by: Dinh Nguyen
Acked-by: Jamie Iles
Signed-off-by: Arnd Bergmann -
Few empty files (spear1310_misc_regs.h and spear1340_misc_regs.h) are created by
commit b31e23726 "SPEAr13xx: Add header files".Don't know how they got added, obviously my fault :)
But nobody could even catch them in reviews.Remove them.
Signed-off-by: Viresh Kumar
Signed-off-by: Arnd Bergmann -
…/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren <tony@atomide.com>:
Timer fix for am33xx, runtime PM fix for UART, audio McBSP fixes,
mux and pinctrl fixes, and Beagle OPP fix.* tag 'omap-for-v3.7-rc2/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: AM33XX: Fix configuration of dmtimer parent clock by dmtimer driverDate:Wed, 17 Oct 2012 13:55:55 -0500
ARM: OMAP3: Beagle: fix OPP customization and initcall ordering
ARM: OMAP3: Fix 3430 legacy mux names for ssi1 signals.
ARM: OMAP2+: Fix location of select PINCTRL
ARM/dts: omap3: Fix mcbsp2/3 hwmods to be able to probe the drivers for audio
ARM: OMAP2: UART: fix console UART mismatched runtime PM status
ARM: OMAP3: PM: apply part of the erratum i582 workaroundSigned-off-by: Arnd Bergmann <arnd@arndb.de>
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Patches from Sascha Hauer :
ARM i.MX fixes for 3.7-rc
* tag 'imx-fixes' of git://git.pengutronix.de/git/imx/linux-2.6:
ARM i.MX25: Fix PWM per clock lookups
ARM i.MX25 clk: Fix nfc_ipg_per parent
ARM i.MX25: Fix lcdc_ipg_per parent clock
ARM: mxc: platform-mxc-mmc: Fix register region size
ARM: imx: clk-imx27: Fix divider width field
ARM: imx: fix the return value check in imx_clk_busy_divider()
ARM: imx_v6_v7_defconfig: Enable CONFIG_GPIO_MC9S08DZ60
ARM: imx: fix return value check in imx3_init_l2x0()Signed-off-by: Arnd Bergmann
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* 'for-rcs-3.7' of git://git.linaro.org/people/ljones/linux-3.0-ux500:
ARM: ux500: Correct SDI5 address and add some format changes
ARM: ux500: Specify AMBA Primecell IDs for Nomadik I2C in DT
ARM: ux500: Fix build error relating to IRQCHIP_SKIP_SET_WAKESigned-off-by: Arnd Bergmann
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From Nicolas Ferre :
A mix of typos and critical fixes.
The most important ones are a duplicated definition of a Kconfig
variable and the handling of external interrupts for non-DT case.
The new at91sam9g10 was suffering a recognition issue due to an ID
mis-interpreted: this was leading to a kernel panic.* tag 'at91-fixes' of git://github.com/at91linux/linux-at91: (257 commits)
ARM: at91: drop duplicated config SOC_AT91SAM9 entry
ARM: at91/i2c: change id to let i2c-at91 work
ARM: at91/i2c: change id to let i2c-gpio work
ARM: at91/dts: at91sam9g20ek_common: Fix typos in buttons labels.
ARM: at91: fix external interrupt specification in board code
ARM: at91: fix external interrupts in non-DT case
ARM: at91: at91sam9g10: fix SOC type detection
ARM: at91/tc: fix typo in the DT documentSigned-off-by: Arnd Bergmann
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The current DT nodes for mx23/mx28 miss the `clocks-names` item for gpmi-nand.
So the gpmi-nand driver could not find the proper clock.This patch fixes this issue.
Signed-off-by: Huang Shijie
Reviewed-by: Marek Vasut
Acked-by: Shawn Guo
Signed-off-by: Arnd Bergmann -
Here we fix a simple copy and paste error and bring some node
spaces back into line with the remainder of the tree.Acked-by: Linus Walleij
Signed-off-by: Lee Jones -
Now the Nomadik I2C driver has been converted to an AMBA one, we
are required to provide the Primecell IDs via platform code. When
booting with DT enabled these have to be specified in the device
nodes. We do that here.Acked-by: Linus Walleij
Signed-off-by: Lee Jones -
This patch fixes the build error below:
arch/arm/mach-ux500/cpu.c: In function ‘ux500_init_irq’:
arch/arm/mach-ux500/cpu.c:55:2: error: invalid use of undefined type ‘struct irq_chip’
arch/arm/mach-ux500/cpu.c:55:24: error: ‘IRQCHIP_SKIP_SET_WAKE’ undeclared (first use in this function)
arch/arm/mach-ux500/cpu.c:55:24: note: each undeclared identifier is reported only once for each function it appears in
arch/arm/mach-ux500/cpu.c:55:48: error: ‘IRQCHIP_MASK_ON_SUSPEND’ undeclared (first use in this function)Acked-by: Linus Walleij
Signed-off-by: Lee Jones -
This reverts commit 957ee7270d632245b43f6feb0e70d9a5e9ea6cf6
(serial: omap: fix software flow control).As Russell has pointed out, that commit isn't fixing
Software Flow Control at all, and it actually makes
it even more broken.It was agreed to revert this commit and use Russell's
latest UART patches instead.Cc: Russell King
Signed-off-by: Felipe Balbi
Acked-by: Tony Lindgren
Signed-off-by: Greg Kroah-Hartman -
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD
Acked-by: Nicolas Ferre -
The i2c core driver will turn the platform device ID to busnum
When using platfrom device ID as -1, it means dynamically assigned
the busnum. When writing code, we need to make sure the busnum,
and call i2c_register_board_info(int busnum, ...) to register device
if using -1, we do not know the value of busnumIn order to solve this issue, set the platform device ID as a fix number
Here using 0 to match the busnum used in i2c_regsiter_board_info()Signed-off-by: Bo Shen
Signed-off-by: Nicolas Ferre
Acked-by: Jean-Christophe PLAGNIOL-VILLARD
Acked-by: Ludovic Desroches -
The i2c core driver will turn the platform device ID to busnum
When using platfrom device ID as -1, it means dynamically assigned
the busnum. When writing code, we need to make sure the busnum,
and call i2c_register_board_info(int busnum, ...) to register device
if using -1, we do not know the value of busnumIn order to solve this issue, set the platform device ID as a fix number
Here using 0 to match the busnum used in i2c_regsiter_board_info()Signed-off-by: Bo Shen
Acked-by: Jean Delvare
Signed-off-by: Nicolas Ferre
Acked-by: Jean-Christophe PLAGNIOL-VILLARD
Acked-by: Ludovic Desroches
Cc: stable [very long time] -
Signed-off-by: Marek Belisko
Signed-off-by: Nicolas Ferre
Acked-by: Jean-Christophe PLAGNIOL-VILLARD -
Since the switch to sparse irq, we have to add the NR_IRQS_LEGACY
offset to static irq numbers. It has been forgotten on these
SPI irq definitions in board code.Signed-off-by: Nicolas Ferre
Acked-by: Jean-Christophe PLAGNIOL-VILLARD
Acked-by: Ludovic Desroches
Cc: stable [v3.6] -
Management of external interrupts has changed but the
non-DT code has not integrated these changes.
Add a mask to pass external irq specification from SoC
specific code to the at91_aic_init() function.Signed-off-by: Nicolas Ferre
Acked-by: Jean-Christophe PLAGNIOL-VILLARD
Acked-by: Ludovic Desroches
Cc: stable [v3.6] -
Newer at91sam9g10 SoC revision can't be detected, so the kernel can't boot with
this kind of kernel panic:
"AT91: Impossible to detect the SOC type"CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
CPU: VIVT data cache, VIVT instruction cache
Machine: Atmel AT91SAM9G10-EK
Ignoring tag cmdline (using the default kernel command line)
bootconsole [earlycon0] enabled
Memory policy: ECC disabled, Data cache writeback
Kernel panic - not syncing: AT91: Impossible to detect the SOC type
[] (unwind_backtrace+0x0/0xe0) from [] (panic+0x78/0x1cc)
[] (panic+0x78/0x1cc) from [] (at91_map_io+0x90/0xc8)
[] (at91_map_io+0x90/0xc8) from [] (paging_init+0x564/0x6d0)
[] (paging_init+0x564/0x6d0) from [] (setup_arch+0x464/0x704)
[] (setup_arch+0x464/0x704) from [] (start_kernel+0x6c/0x2d4)
[] (start_kernel+0x6c/0x2d4) from [] (0x20008040)The reason for this is that the Debug Unit Chip ID Register has changed between
Engineering Sample and definitive revision of the SoC. Changing the check of
cidr to socid will address the problem. We do not integrate this check to the
list just above because we also have to make sure that the extended id is
disregarded.Signed-off-by: Ivan Shugov
[nicolas.ferre@atmel.com: change commit message]
Signed-off-by: Nicolas Ferre
Acked-by: Jean-Christophe PLAGNIOL-VILLARD
Cc: stable [v3.1] # since commit 8c3583b6
24 Oct, 2012
1 commit
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Commit e9da6e9905e639b0f842a244bc770b48ad0523e9 ("ARM: dma-mapping:
remove custom consistent dma region") removed the last users of the
field. Remove it.Signed-off-by: Laurent Pinchart
Signed-off-by: Marek Szyprowski
