| Commit message (Collapse) | Author | Age |
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This has similar symptoms than 66c23551b1b774e2be3c7bdf91c0ebf2c7a3519e
where just omap_request_dma, omap_dma_link_lch and omap_dma_unlink_lch
can cause incorrect dump_stack(). Here it can happen if channel has been
used before and the channel flags variable holds old status.
Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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CSR must be cleared before invoking the callback.
If the callback function starts a new, fast DMA transfer on the same
channel, the completion status might lost if CSR is cleared after
the callback invocation.
Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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A spin_lock deadlock will occur when omap_mcbsp_request() is invoked.
omap_mcbsp_request()
\- clk_enable(mcbsp->clk) [takes and holds clockfw_lock]
\- omap2_clk_enable()
\- _omap2_clk_enable()
\- omap_mcbsp_clk_enable()
\- clk_enable(child clock) [tries for clockfw_lock again]
mcbsp_clk is a virtual clock and it comprises several child clocks. when
enable mcbsp_clk in omap_mcbsp_request(), the enable function of mcbsp_clk
will enable its child clocks, then the deadlock occurs.
The solution is to remove the virtual clock and enable these child clocks in
omap_mcbsp_request() directly.
Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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"flash" is a very generic name for a platform_driver that is only
available on SA11x0.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Nicolas Pitre <nico@marvell.com>
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Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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SPIN_LOCK_UNLOCKED is deprecated as lockdep cannot properly work with
locks initialized with it.
This fix is necessary to compile the linux-rt tree for ARM.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Steven Rostedt <srostedt@redhat.com>
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When there are multiple L1-aliasing userland mappings of the same physical
page, we currently remap each of them uncached, to prevent VIVT cache
aliasing issues. (E.g. writes to one of the mappings not being immediately
visible via another mapping.) However, when we do this remapping, there
could still be stale data in the L2 cache, and an uncached mapping might
bypass L2 and go straight to RAM. This would cause reads from such
mappings to see old data (until the dirty L2 line is eventually evicted.)
This issue is solved by forcing a L2 cache flush whenever the shared page
is made L1 uncacheable.
Ideally, we would make L1 uncacheable and L2 cacheable as L2 is PIPT. But
Feroceon does not support that combination, and the TEX=5 C=0 B=0 encoding
for XSc3 doesn't appear to work in practice.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Aaro says:
> With spinlock debugs enabled I get might_sleep() warnings when using
> ptrace.
tracked down to a missing enable_irq before calling do_undefinstr().
Reported-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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arch/arm/mach-msm/board-halibut.c:45: error: implicit declaration of function 'MSM_GPIO_TO_INT'
arch/arm/mach-msm/board-halibut.c:45: error: initializer element is not constant
arch/arm/mach-msm/board-halibut.c:45: error: (near initialization for 'smc91x_resources[1].start')
arch/arm/mach-msm/board-halibut.c:46: error: initializer element is not constant
arch/arm/mach-msm/board-halibut.c:46: error: (near initialization for 'smc91x_resources[1].end')
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI hotplug: Change link order of pciehp & acpiphp
PCI hotplug: fakephp: Allocate PCI resources before adding the device
PCI MSI: Fix undefined shift by 32
PCI PM: Do not wait for buses in B2 or B3 during resume
PCI PM: Power up devices before restoring their state
PCI PM: Fix hibernation breakage on EeePC 701
PCI: irq and pci_ids patch for Intel Tigerpoint DeviceIDs
PCI PM: Fix suspend error paths and testing facility breakage
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This patch adds the Intel Tigerpoint LPC Controller DeviceIDs.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
fbdev/atyfb: Fix DSP config on some PowerMacs & PowerBooks
powerpc: Fix oops on some machines due to incorrect pr_debug()
powerpc/ps3: Printing fixups for l64 to ll64 convserion drivers/net
powerpc/5200: update device tree binding documentation
powerpc/5200: Bugfix for PCI mapping of memory and IMMR
powerpc/5200: update defconfigs
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Recently, a patch left DEBUG enabled in the powerpc common PCI code,
resulting in an old bug in a pr_debug() statement to show up and cause
a NULL dereference on some machines.
This fixes the pr_debug() statement and reverts to DEBUG not being
force-enabled in that file.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This patch ensures that memory gets properly mapped into the PCI
address space. Without this patch, the memory window BAR is left
at whatever value happened to be loaded into the BAR when Linux
was booted. Without this patch, memory could end up getting mapped
at any of the 1G address boundaries instead of at '0' where Linux
expects it.
Similarly, this patch also ensures that the internally memory mapped
registers (IMMR) are mapped to the correct PCI address range.
Without this patch, PCI appears to work correctly until a PCI
device is inserted which DMAs into memory.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
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Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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This patch adds a MX2/MX3 specific SDHC driver. The hardware is basically
the same as in the MX1, but unlike the MX1 controller the MX2
controller just works as expected. Since the MX1 driver has more
workarounds for bugs than anything else I had no success with supporting
MX1 and MX2 in a sane way in one driver.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (90 commits)
headers_check fix: x86, swab.h
headers_check fix: x86, sigcontext32.h
headers_check fix: x86, sigcontext.h
headers_check fix: x86, ptrace-abi.h
headers_check fix: x86, mtrr.h
headers_check fix: x86, mce.h
headers_check fix: x86, kvm.h
headers_check fix: x86, e820.h
headers_check fix: linux/rtnetlink.h
headers_check fix: linux/nubus.h
headers_check fix: video/uvesafb.h
headers_check fix: video/sisfb.h
headers_check fix: sound/hdsp.h
headers_check fix: mtd/inftl-user.h
headers_check fix: linux/virtio_net.h
headers_check fix: linux/virtio_console.h
headers_check fix: linux/virtio_blk.h
headers_check fix: linux/videodev.h
headers_check fix: linux/video_encoder.h
headers_check fix: linux/video_decoder.h
...
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fix the following 'make headers_check' warnings:
usr/include/asm/swab.h:4: include of <linux/types.h> is preferred over <asm/types.h>
usr/include/asm/swab.h:7: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
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fix the following 'make headers_check' warning:
usr/include/asm/sigcontext32.h:20: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
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fix the following 'make headers_check' warnings:
usr/include/asm/sigcontext.h:5: include of <linux/types.h> is preferred over <asm/types.h>
usr/include/asm/sigcontext.h:24: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
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fix the following 'make headers_check' warnings:
usr/include/asm/ptrace-abi.h:86: include of <linux/types.h> is preferred over <asm/types.h>
usr/include/asm/ptrace-abi.h:93: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
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fix the following 'make headers_check' warning:
usr/include/asm/mtrr.h:61: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
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fix the following 'make headers_check' warnings:
usr/include/asm/mce.h:7: include of <linux/types.h> is preferred over <asm/types.h>
usr/include/asm/mce.h:29: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
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fix the following 'make headers_check' warnings:
usr/include/asm/kvm.h:9: include of <linux/types.h> is preferred over <asm/types.h>
usr/include/asm/kvm.h:16: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
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fix the following 'make headers_check' warning:
usr/include/asm/e820.h:44: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, ds, bts: cleanup/fix DS configuration
ring-buffer: reset timestamps when ring buffer is reset
trace: set max latency variable to zero on default
trace: stop all recording to ring buffer on ftrace_dump
trace: print ftrace_dump at KERN_EMERG log level
ring_buffer: reset write when reserve buffer fail
tracing/function-graph-tracer: fix a regression while suspend to disk
ring-buffer: fix alignment problem
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Cleanup the cpuid check for DS configuration.
This also fixes a Corei7 CPUID enumeration bug.
Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86 setup: fix asm constraints in vesa_store_edid
xen: make sysfs files behave as their names suggest
x86: tone down mtrr_trim_uncached_memory() warning
x86: correct the CPUID pattern for MSR_IA32_MISC_ENABLE availability
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Impact: fix potential miscompile (currently believed non-manifest)
As the comment explains, the VBE DDC call can clobber any register.
Tell the compiler about that fact.
Signed-off-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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kerneloops.org is reporting a lot of these warnings that come due to
vmware not setting up any MTRRs for emulated CPUs:
| Reported 709 times (14696 total reports)
| BIOS bug (often in VMWare) where the MTRR's are set up incorrectly
| or not at all
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| This warning was last seen in version 2.6.29-rc2-git1, and first
| seen in 2.6.24.
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| More info:
| http://www.kerneloops.org/searchweek.php?search=mtrr_trim_uncached_memory
Keep a one-liner KERN_INFO about it - so that we have so notice if empty
MTRRs are caused by native hardware/BIOS weirdness.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: re-enable CPUID unmasking on affected processors
As far as I am capable of discerning from the documentation,
MSR_IA32_MISC_ENABLE should be available for all family 0xf CPUs, as
well as family 6 for model >= 0xd (newer Pentium M).
The documentation on this isn't ideal, so we need to be on the lookout
for errors, still.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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In Linus' current -git the cpumask member is now a pointer.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This kernel symbol provides a way for drivers to switch on alternate
function for a certain GPIO pin. Turning it off is done implicitly when
changing the GPIO direction, as that would be fixed when using the given
pin als alternate function.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Remove the {set,get}_434_reg() prototypes, as the functions have been
removed. Also move the prototypes for {get,set}_latch_u5() to the correct
place.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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As rb532_dev3_ctl_res is not used by any platform device, it can be dropped
when not used for holding the physical address of the device 3 controller.
Also a size of one byte should suffice when ioremapping the physical
address mentioned above, as only a single byte is being read from and
written to it.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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These kernel symbols are unused. Also, since dev3 init has been moved to
devices.c, set_434_reg() breaks compiling as it uses dev3.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This code doesn't belong to gpio.c, as it's completely unrelated to
GPIO. As dev1 and dev2 init code is in devices.c, it seems to be a more
adequate place.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The data to be written is just a byte, so use writeb instead of writel.
Also, dev3.base contains the address, not the data so referencing here
is wrong.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This register just contains the address of the actual resource, so
initialisation has to be the same as cf_slot0_res and nand_slot0_res.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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As the korina ethernet driver uses platform_get_drvdata() to extract the
driver specific data from the platform device, driver_data has to be
used here.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Auto-detection works just fine, so use it instead of specifying the type
manually. Also define a platform device for the uart, as suggested by
David Daney.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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As the pata-rb532-cf driver calls gpio_direction_input(), the calls to
rb532_gpio_set_func() and rb532_gpio_direction_input() are not needed since
the alternate function is automatically being disabled when changing the
GPIO pin direction.
The later two calls to rb532_gpio_set_{ilevel,istat}() are implicitly being
done by the IRQ initialisation of pata-rb532-cf.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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When a driver calls gpio_set_direction_{input,output}(), it obviously
doesn't want the alternate function for that pin to be active (as the
direction would not matter in that case). This patch ensures alternate
function is disabled when the direction is being changed.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Interrupt Group 4 mapps the GPIO pins enabled as interrupt sources;
add defines to make this clear when addressing them later in code.
The mapped GPIOs support triggering on either level high or low. To
achieve this, the set_type() function calls rb532_gpio_set_ilevel() for
interrupts of the above mentioned group.
As there is no way to alter the triggering characteristics of the other
interrupts, accept level triggering on status high only. (This is just a
guess; but as the system boots fine and interrupt-driven devices (e.g.
serial console) work with no implications, it seems to be right.)
To clear a GPIO mapped IRQ, the source has to be cleared (i.e., the
interrupt status bit of the corresponding GPIO pin). This is done inside
rb532_disable_irq().
After applying these changes I could undo most of my former "fixes" to
pata-rb532-cf. Particularly all interrupt handling can be done
generically via set_irq_type() as it was before.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The code is rather based on trial-and-error than knowledge. Verified Via
Rhine functionality in PIO as well as MMIO mode.
[Looks sane -- Ralf]
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Tested-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The algorithm works unconditionally. If bitval is one, the first line is
a no op and the second line sets the bit at offset position. Vice versa,
if bitval is zero, the first line clears the bit at offset position and
the second line is a no op.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The previous definition inadvertently omits Octeon which currently is
treated as an architecture variant separate from MIPS32 and MIPS64.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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If a context switch occurred between the watch exception and reading the
watch registers, it would be possible for the new process to corrupt their
state. Enabling interrupts only after the watch registers are read avoids
this race.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This fixes the ptrace ABI for watch registers, and should allow 64bit
kernels to use the watch register support.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Add platform support to use rtc-tx4939 driver.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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