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2013-04-15ioatdma: S1200 platforms ioatdma channel 2 and 3 falsely advertise RAID capDave Jiang1-0/+15
This workaround checks for channel 2&3 and remove RAID cap. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15ioatdma: Adding support for 16 src PQ ops and super extended descriptorsDave Jiang6-22/+438
v3.3 introduced 16 sources PQ operations. This also introduced super extended descriptors to support the 16 srcs operations. This patch adds support for the 16 sources ops and in turn adds the super extended descriptors for those ops. 5 SED pools are created depending on the descriptor sizes. An SED can be a 64 bytes sized descriptor or larger and must be physically contiguous. A kmem cache pool is created for allocating the software descriptor that manages the hardware descriptor. The super extended descriptor will take place of extended descriptor under certain operations and be "attached" to the op descriptor during operation. This is a new feature for ioatdma v3.3. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <djbw@fb.com> Acked-by: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15ioatdma: Removing hw bug workaround for CB3.x .2 and earlierDave Jiang1-11/+20
CB3.2 and earlier hardware has silicon bugs that are no longer needed with the new hardware. We don't have to use a NULL op to signal interrupt for RAID ops any longer. This code make sure the legacy workarounds only happen on legacy hardware. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dw_dmac: add ACPI supportAndy Shevchenko2-19/+50
Since we have proper ACPI DMA helpers implemented, the driver may use it. This patch introduces custom filter function together with acpi_device_id table. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmaengine: call acpi_dma_request_slave_channel as wellAndy Shevchenko1-0/+6
The slave device could be enumerated by ACPI. In that case the dma_request_slave_channel should use the acpi_dma_request_slave_channel() helper. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dma: acpi-dma: introduce ACPI DMA helpersAndy Shevchenko3-0/+284
There is a new generic API to get a DMA channel for a slave device (commit 9a6cecc8 "dmaengine: add helper function to request a slave DMA channel"). In similar fashion to the DT case (commit aa3da644 "of: Add generic device tree DMA helpers") we introduce helpers to the DMAC drivers which are enumerated by ACPI. The proposed extension provides the following API calls: acpi_dma_controller_register(), devm_acpi_dma_controller_register() acpi_dma_controller_free(), devm_acpi_dma_controller_free() acpi_dma_simple_xlate() acpi_dma_request_slave_chan_by_index() acpi_dma_request_slave_chan_by_name() The first two should be used, for example, at probe() and remove() of the corresponding DMAC driver. At the register stage the DMAC driver supplies a custom xlate() function to translate a struct dma_spec into struct dma_chan. Accordingly to the ACPI Fixed DMA resource specification the only two pieces of information the slave device has are the channel id and the request line (slave id). Those two are represented by struct dma_spec. The acpi_dma_request_slave_chan_by_index() provides access to the specifix FixedDMA resource by its index. Whereas dma_request_slave_channel() takes a string parameter to identify the DMA resources required by the slave device. To make a slave device driver work with both DeviceTree and ACPI enumeration a simple convention is established: "tx" corresponds to the index 0 and "rx" to the index 1. In case of robust configuration the slave device driver unfortunately needs to call acpi_dma_request_slave_chan_by_index() directly. Additionally the patch provides "managed" version of the register/free pair i.e. devm_acpi_dma_controller_register() and devm_acpi_dma_controller_free(). Usually, the driver uses only devm_acpi_dma_controller_register(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15ioatdma: skip silicon bug workaround for pq_align for cb3.3Dave Jiang1-2/+10
The alignment workaround is only necessary for cb3.2 or earlier platforms. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15ioatdma: Removing PQ val disable for cb3.3Dave Jiang4-14/+125
The PQ Val ops work on the newer hardware so we should actually provide support for it and remove the disabling bits. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15ioatdma: skip legacy reset bits since v3.3 plattform doesn't need itDave Jiang1-13/+21
Make it so only 3.2 and earlier platform need the PCI config register clearings since this implementation does not have the registers. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15ioatdma: channel reset scheme fixup on Intel Atom S1200 platformsDave Jiang3-83/+171
The Intel Atom S1200 family ioatdma changed the channel reset behavior. It does a reset similar to PCI FLR by resetting all the MSIX registers. We have to re-init msix interrupts because of this. This workaround is only specific to this platform and is not expected to carry over to the later generations. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15ioatdma: Add 64bit chansts register read for ioat v3.3.Dave Jiang1-1/+21
The channel status register for v3.3 is now 64bit. Use readq if available on v3.3 platforms. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15ioatdma: Adding PCI IDs for Intel Atom S1200 product family ioatdma devicesDave Jiang2-0/+12
These should be good for the IOAT DMA devices on the Intel Atom S1269, S1279, and S1289 platforms. We are also adding IOAT v3.3 definition for the new DMA engine. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15ioatdma: Adding Haswell devid for ioatdmaDave Jiang3-6/+55
Adding Haswell PCI device IDs for ioatdma and simplify the detection of certain Xeon CPUs that has alignment bugs so that modifications can be changed at a single place going forward. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmaengine: OMAP: Register SDMA controller with Device Tree DMA driverJon Hunter1-2/+36
If the device-tree blob is present during boot, then register the SDMA controller with the device-tree DMA driver so that we can use device-tree to look-up DMA client information. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dw_dmac: remove unnecessary ENODEV checkAndy Shevchenko1-1/+1
If CONFIG_OF is not set the of_node of the device will always be NULL. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmaengine: dw_dmac: simplify master selectionArnd Bergmann2-48/+33
The patch to add the common DMA binding added a dummy dw_dma_slave structure into the dw_dma_chan structure in order to configure the masters correctly. It turns out that this can be simplified if we pick the DMA masters in the dwc_alloc_chan_resources function instead and save them in the dw_dma_chan structure directly. This could be simplified further once all users that today use dw_dma_slave for configuration get converted to device tree based setup instead. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: linux-arm-kernel@lists.infradead.org Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dw_dmac: rename DT related methods to reflect their belongingAndy Shevchenko1-11/+13
Since we will have not only DT cases in future let's rename DT related methods to reflect their belonging. The rename was done as follows: struct dw_dma_filter_args -> struct dw_dma_of_filter_args dw_dma_generic_filter() -> dw_dma_of_filter() dw_dma_xlate() -> dw_dma_of_xlate() dw_dma_id_table -> dw_dma_of_id_table There is no functional change. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dw_dmac: fix style of the commentsAndy Shevchenko1-15/+15
Let's use capital letter as a first one in the comments. There is no functional changes. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dma: Make the 'mask' parameter of __dma_request_channel constLars-Peter Clausen1-3/+6
The 'mask' parameter is not modified in __dma_request_channel and really shouldn't be. Make this explicit by making the parameter const. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmaengine:sirf:take clock and enable it while probingBarry Song1-0/+11
there is hardcode which enabled the clock of dmaengine before, this patch takes the clock by standard clock API and enable it in probe. Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dw_dmac: don't wait for FIFO_EMPTY endlessly in dwc_chan_pauseAndy Shevchenko1-2/+3
When we pause the channel after transfer is completed we might stuck in the dwc_chan_pause() because the FIFO_EMPTY flag will never be asserted. To avoid the endless loop we introduce a timeout here (*). The proper solution is to somehow get the residue in FIFO and avoid busyloop when transfer is done, but this task is not simple and fast. Unfortunately we can't use cpu_relax() in conjunction with jiffies checker, due to we have interrupts disabled by spin_lock_irqsave() and there is a big chance that no interrupts will come to update the jiffies.. (*) The worst case is AHB write * FIFO size / hclk = 5.12 us, where AHB write = 2 cycles, hclk = 100 MHz, burst size = 1 byte, FIFO size = 256 bytes. The proposed 40us timeout might be considered as a big one, though we enter to that state only when we have the transfer already completed. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dma: imx-dma: Remove redundant NULL check before kfreeSyam Sidhardhan1-2/+1
kfree on NULL pointer is a no-op. Signed-off-by: Syam Sidhardhan <s.syam@samsung.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dma: ipu: ipu_idmac: Fix section mismatchFabio Estevam1-1/+1
Since commit 84c1e63c12 (dma: Remove erroneous __exit and __exit_p() references) the following section mismatch happens: WARNING: drivers/built-in.o(.text+0x20f94): Section mismatch in reference from the function ipu_remove() to the function .exit.text:ipu_idmac_exit() The function ipu_remove() references a function in an exit section. Often the function ipu_idmac_exit() has valid usage outside the exit section and the fix is to remove the __exit annotation of ipu_idmac_exit. Remove the '__exit' annotation from ipu_idmac_exit in order to fix it. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Maxin B. John <maxin.john@enea.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dma: tegra: assume CONFIG_OFStephen Warren1-15/+7
Tegra only supports, and always enables, device tree. Remove all ifdefs and runtime checks for DT support from the driver. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dma: pl330: Convert to devm_ioremap_resource()Sachin Kamat1-3/+4
Use the newly introduced devm_ioremap_resource() instead of devm_request_and_ioremap() which provides more consistent error handling. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: append verify result to resultsAndy Shevchenko1-54/+128
Comparison between buffers is stored to the dedicated structure. Note that the verify result is now accessible only via file 'results' in the debugfs. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: gather test results in the linked listAndy Shevchenko1-30/+204
The patch provides a storage for the test results in the linked list. The gathered data could be used after test is done. The new file 'results' represents gathered data of the in progress test. The messages collected are printed to the kernel log as well. Example of output: % cat /sys/kernel/debug/dmatest/results dma0chan0-copy0: #1: No errors with src_off=0x7bf dst_off=0x8ad len=0x3fea (0) The message format is unified across the different types of errors. A number in the parens represents additional information, e.g. error code, error counter, or status. Note that the buffer comparison is done in the old way, i.e. data is not collected and just printed out. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: define MAX_ERROR_COUNT constantAndy Shevchenko1-3/+6
Its meaning is to limit amount of error messages to be printed out when buffer mismatch is occured. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: return actual state in 'run' fileAndy Shevchenko1-2/+21
The following command should return actual state of the test. % cat /sys/kernel/debug/dmatest/run To wait for test done the user may perform a busy loop that checks the state. % while [ $(cat /sys/kernel/debug/dmatest/run) = "Y" ] > do > echo -n "." > sleep 1 > done > echo Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: run test via debugfsAndy Shevchenko1-2/+255
Instead of doing modprobe dmatest ... modprobe -r dmatest we allow user to run tests interactively. The dmatest could be built as module or inside kernel. Let's consider those cases. 1. When dmatest is built as a module... After mounting debugfs and loading the module, the /sys/kernel/debug/dmatest folder with nodes will be created. They are the same as module parameters with addition of the 'run' node that controls run and stop phases of the test. Note that in this case test will not run on load automatically. Example of usage: % echo dma0chan0 > /sys/kernel/debug/dmatest/channel % echo 2000 > /sys/kernel/debug/dmatest/timeout % echo 1 > /sys/kernel/debug/dmatest/iterations % echo 1 > /sys/kernel/debug/dmatest/run After a while you will start to get messages about current status or error like in the original code. Note that running a new test will stop any in progress test. 2. When built-in in the kernel... The module parameters that is supplied to the kernel command line will be used for the first performed test. After user gets a control, the test could be interrupted or re-run with same or different parameters. For the details see the above section "1. When dmatest is built as a module..." In both cases the module parameters are used as initial values for the test case. You always could check them at run-time by running % grep -H . /sys/module/dmatest/parameters/* Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: split test parameters to separate structureAndy Shevchenko1-47/+62
Better to keep test parameters separate from internal variables. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: move dmatest_channels and nr_channels to dmatest_infoAndy Shevchenko1-13/+16
We don't need to have them global and later we would like to protect access to them as well. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: create dmatest_info to keep test parametersAndy Shevchenko1-47/+113
The proposed change will remove usage of the module parameters as global variables. In future it helps to run different test cases sequentially. The patch introduces the run_threaded_test() and stop_threaded_test() functions that could be used later outside of dmatest_init, dmatest_exit scope. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: allocate memory for pq_coefs from heapAndy Shevchenko1-2/+9
This will help in future to hide a global variable usage. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: cancel thread immediately when asked forAndy Shevchenko1-1/+2
If user have the timeout alike issues and wants to cancel the thread immediately, the current call of wait_event_freezable_timeout is preventing to this until timeout is expired. Thus, user will experience the unnecessary delays. Adding kthread_should_stop() check inside wait_event_freezable_timeout() solves that. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15ioatdma: allow all channels to have irq coalescing supportDave Jiang1-9/+3
Looks like only the RAID channels are allowed to have irq coalescing support in the existing code. Fixing that. The ioat3 cleanup code can handle memcpy ops anyways Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15ioatdma: make debug output more readableDave Jiang2-2/+3
Making OP field a hex instead of integer to make it more readable. Also add the dump out of the NEXT field. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dma: Remove erroneous __exit and __exit_p() referencesMaxin B. John6-14/+14
Removing the annotation with __exit and referencing with __exit_p() present in dma driver module remove hooks. Part of the __devexit and __devexit_p() purge. Signed-off-by: Maxin B. John <maxin.john@enea.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dma: timb_dma: Fix compiler warningMaxin B. John1-1/+1
Fix this compiler warning: warning: 'td_remove' defined but not used [-Wunused-function] Signed-off-by: Maxin B. John <maxin.john@enea.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15pch_dma: Use GFP_ATOMIC because called from interrupt contextTomoya MORINAGA1-1/+1
pdc_desc_get() is called from pd_prep_slave_sg, and the function is called from interrupt context(e.g. Uart driver "pch_uart.c"). In fact, I saw kernel error message. So, GFP_ATOMIC must be used not GFP_NOIO. Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15DMA: PL330: allow submitting 2 requests at a timeJassi Brar1-2/+1
Fix the logic to allow mc programming of second transfer after first has been done, by removing immediate return upon success and iterating until we detect QFull or DMAC dying. Reported-by: Alvaro Moran <dirac3000@gmail.com> Tested-by: Alvaro Moran <dirac3000@gmail.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-14Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2-3/+9
Pull drm fixes from Dave Airlie: "One fix for a hotplug locking regressions, and one fix for an oops if you unplug the monitor at an inopportune moment on the udl device." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/fb-helper: Fix locking in drm_fb_helper_hotplug_event udl: handle EDID failure properly.
2013-04-14watchdog: Revert the AT91RM9200_WATCHDOG dependencyNicolas Ferre1-1/+1
Compiling the at91rm9200_wdt.c driver without at91rm9200 support was leading to several errors: drivers/built-in.o: In function `at91_wdt_close': at91_adc.c:(.text+0xc9fe4): undefined reference to `at91_st_base' drivers/built-in.o: In function `at91_wdt_write': at91_adc.c:(.text+0xca004): undefined reference to `at91_st_base' drivers/built-in.o: In function `at91wdt_shutdown': at91_adc.c:(.text+0xca01c): undefined reference to `at91_st_base' drivers/built-in.o: In function `at91wdt_suspend': at91_adc.c:(.text+0xca038): undefined reference to `at91_st_base' drivers/built-in.o: In function `at91_wdt_open': at91_adc.c:(.text+0xca0cc): undefined reference to `at91_st_base' drivers/built-in.o:at91_adc.c:(.text+0xca2c8): more undefined references to `at91_st_base' follow So, reverting the modification of the "depends" Kconfig line introduced by patch a6a1bcd37 (watchdog: at91rm9200: add DT support) seems to be the good solution. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-04-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds2-68/+133
Pull SCSI target fixes from Nicholas Bellinger: "Here are remaining target-pending items for v3.9-rc7 code. The tcm_vhost patches are more than I'd usually include in a -rc7 pull, but are changes required for v3.9 to work correctly with the pending vhost-scsi-pci QEMU upstream series merge. (Paolo CC'ed) Plus Asias's conversion to use vhost_virtqueue->private_data + RCU for managing vhost-scsi endpoints has gotten alot of review + testing over the past weeks, and MST has ACKed the full series. Also, there is a target patch to fix a long-standing bug within control CDB handling with Standby/Offline/Transition ALUA port access states, that had been incorrectly rejecting the control CDBs required for LUN scan to work during these port group states. CC'ing to stable." * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target: Fix incorrect fallthrough of ALUA Standby/Offline/Transition CDBs tcm_vhost: Send bad target to guest when cmd fails tcm_vhost: Add vhost_scsi_send_bad_target() helper tcm_vhost: Fix tv_cmd leak in vhost_scsi_handle_vq tcm_vhost: Remove double check of response tcm_vhost: Initialize vq->last_used_idx when set endpoint tcm_vhost: Use vq->private_data to indicate if the endpoint is setup tcm_vhost: Use ACCESS_ONCE for vs->vs_tpg[target] access
2013-04-12Merge tag 'scsi-fixes' of ↵Linus Torvalds12-79/+37
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is a set of ten bug fixes (and two consisting of copyright year update and version number change) pretty much all of which involve either a crash or a hang except the removal of the random sleep from the qla2xxx driver (which is a coding error so bad, we want it gone before anyone has a chance to copy it)." * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: [SCSI] lpfc: fix potential NULL pointer dereference in lpfc_sli4_rq_put() [SCSI] libsas: fix handling vacant phy in sas_set_ex_phy() [SCSI] ibmvscsi: Fix slave_configure deadlock [SCSI] qla2xxx: Update the driver version to 8.04.00.13-k. [SCSI] qla2xxx: Remove debug code that msleeps for random duration. [SCSI] qla2xxx: Update copyright dates information in LICENSE.qla2xxx file. [SCSI] qla2xxx: Fix crash during firmware dump procedure. [SCSI] Revert "qla2xxx: Add setting of driver version string for vendor application." [SCSI] ipr: dlpar failed when adding an adapter back [SCSI] ipr: fix addition of abort command to HRRQ free queue [SCSI] st: Take additional queue ref in st_probe [SCSI] libsas: use right function to alloc smp response [SCSI] ipr: ipr_test_msi() fails when running with msi-x enabled adapter
2013-04-12drm/fb-helper: Fix locking in drm_fb_helper_hotplug_eventDaniel Vetter1-3/+5
Driver's and ->fill_modes functions are allowed to grab crtc mutexes (for e.g. load detect). Hence we need to first only grab the general kms mutex, and only in a second step grab all locks to do the modesets. This prevents a deadlock on my gm45 in the tv load detect code called by drm_helper_probe_single_connector_modes. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-04-12udl: handle EDID failure properly.Dave Airlie1-0/+4
Don't oops seems proper. Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-04-11Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds2-17/+41
Pull slave-dmaengine fixes from Vinod Koul: "The first one fixes issue in pl330 to check for DT compatible and the second one fixes omap-dma to start without delay" * 'fixes' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: omap-dma: Start DMA without delay for cyclic channels DMA: PL330: Add check if device tree compatible
2013-04-11Merge tag 'pm-3.9-rc7' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: - System reboot/halt fix related to CPU offline ordering from Huacai Chen. - intel_pstate driver fix for a delay time computation error occasionally crashing systems using it from Dirk Brandewie. * tag 'pm-3.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / reboot: call syscore_shutdown() after disable_nonboot_cpus() cpufreq / intel_pstate: Set timer timeout correctly
2013-04-11Merge tag 'regmap-v3.9-rc6' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap revert from Mark Brown: "regmap: Back out work buffer fix This reverts commit bc8ce4 (regmap: don't corrupt work buffer in _regmap_raw_write()) since it turns out that it can cause issues when taken in isolation from the other changes in -next that lead to its discovery. On the basis that nobody noticed the problems for quite some time without that subsequent work let's drop it from v3.9." * tag 'regmap-v3.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: Back out work buffer fix