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* | mtd: brcmnand: Fix misuse of IS_ENABLEDAxel Lin2015-08-07
| | | | | | | | | | | | | | | | | | | | | | | | While IS_ENABLED() is perfectly fine for CONFIG_* symbols, it is not for other symbols such as __BIG_ENDIAN that is provided directly by the compiler. Switch to use CONFIG_CPU_BIG_ENDIAN instead of __BIG_ENDIAN. Fixes: 27c5b17cd1b1 ("mtd: nand: add NAND driver "library" for Broadcom STB NAND controller") Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: spi-nor: fsl-quadspi: fix unsupported cmd when run flash_eraseFrank Li2015-08-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Erase function will use cmd 0x20 (SPINOR_OP_BE_4K) if kenrel enable option CONFIG_MTD_SPI_NOR_USE_4K_SECTORS. This command is not in fsl-quadspi driver LUT. So driver continue report fsl-quadspi 21e0000.qspi: Unsupported cmd 0x20. This patch fix this issue. Signed-off-by: Frank Li <Frank.Li@freescale.com> Acked-by: Han Xu <Han.xu@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: spi-nor: fsl-quadspi: reset the module in the probeFrank Li2015-08-06
| | | | | | | | | | | | | | | | | | | | | | | | | | The uboot may run the QuadSpi controler with command: #sf probe So we should reset the module in the probe. This patch also clear the pending interrupts which arised by the uboot code. Signed-off-by: Huang Shijie <shijie8@gmail.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: spi-nor: fsl-quadspi: workaround qspi can't wakeup from wait modeFrank Li2015-08-06
| | | | | | | | | | | | | | | | | | QSPI1 cannot wake up CCM from WAIT mode on SX ARD board, add pmqos to let PM NOT enter WAIT mode when accessing QSPI1, refer to TKT245618. Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Han Xu <Han.xu@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: spi-nor: fsl-quadspi: i.MX6SX: fixed the random QSPI access failed issueAllen Xu2015-08-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We found there is a low probability(5%) QSPI access timeout issue, usually it happened on kernel boot stage, the first time kernel tried to access QSPI chip. The READ_ID command was sent but not executed, consequently the probe function failed. The root cause is that the divider is not glitchless in i.MX6SX chip. If qspi clock enabled then change clock frequency by call clk_set_rate, there will be glitch at low possiblity rate and pass to qspi controller. The controler will be hang by this glitch. Based on the new clock flag(CLK_SET_RATE_GATE) and new framework, we need to change the approach of seting clock rate. 1. Disable clock. 2. call clk_set_rate. 3. Enable clock again. Signed-off-by: Han Xu <han.xu@freescale.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: spi-nor: fsl-quadspi: add i.mx6ul supportFrank Li2015-08-06
| | | | | | | | | | | | | | | | Add i.mx6ul chip support Signed-off-by: Frank Li <Frank.Li@freescale.com> Acked-by: Han xu <han.xu@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: spi-nor: fsl-quadspi: add imx7d supportFrank Li2015-08-06
| | | | | | | | | | | | | | | | | | | | Support i.mx7d. quadspi in i.mx7d increase rxfifo. require fill at least 16byte to trigger data transfer. Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Han Xu <han.xu@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: spi-nor: fsl-quadspi: use quirk to distinguish different qspi versionHan Xu2015-08-06
| | | | | | | | | | | | | | | | add several quirk to distinguish different version of qspi module. Signed-off-by: Han Xu <han.xu@freescale.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: spi-nor: fsl-quadspi: dynamically map memory space for AHB readHan Xu2015-08-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | QSPI may failed to map enough memory (256MB) for AHB read in previous implementation, especially in 3G/1G memory layout kernel. Dynamically map memory to avoid such issue. This implementation generally map QUADSPI_MAX_IOMAP (default 4MB) memory for AHB read, it should be enough for common scenarios, and the side effect (0.6% performance drop) is minor. Previous implementation root@imx6qdlsolo:~# dd if=/dev/mtd0 of=/dev/null bs=1K count=32K 32768+0 records in 32768+0 records out 33554432 bytes (34 MB) copied, 2.16006 s, 15.5 MB/s root@imx6qdlsolo:~# dd if=/dev/mtd0 of=/dev/null bs=32M count=1 1+0 records in 1+0 records out 33554432 bytes (34 MB) copied, 1.43149 s, 23.4 MB/s After applied the patch root@imx6qdlsolo:~# dd if=/dev/mtd0 of=/dev/null bs=1K count=32K 32768+0 records in 32768+0 records out 33554432 bytes (34 MB) copied, 2.1743 s, 15.4 MB/s root@imx6qdlsolo:~# dd if=/dev/mtd0 of=/dev/null bs=32M count=1 1+0 records in 1+0 records out 33554432 bytes (34 MB) copied, 1.43158 s, 23.4 MB/s Signed-off-by: Han Xu <han.xu@freescale.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: m25p80: allow arbitrary OF matching for "jedec,spi-nor"Brian Norris2015-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we added the "jedec,spi-nor" compatible string for use in this driver, we added it as a modalias option. The modalias can be derived in different ways for platform devices vs. device tree (of_*) matching. But for device tree matching (the primary target of this identifier string), the modalias is determined from the first entry in the 'compatible' property. IOW, the following properties would bind to this driver: // Option (a), modalias = "spi-nor" compatible = "jedec,spi-nor"; // Option (b), modalias = "spi-nor" compatible = "idontknowwhatimdoing,spi-nor"; But the following would not: // Option (c), modalias = "shinynewdevice" compatible = "myvendor,shinynewdevice", "jedec,spi-nor"; So, we'd like to match (a) and (c) (even when we don't have an explicit entry for "shinynewdevice"), and we'd rather not allow (b). To do this, we (1) always (for devices without specific platform data) pass the modalias to the spi-nor library; (2) rework the spi-nor library to not reject "bad" names, and instead just fall back to autodetection; and (3) add the .of_match_table to properly catch all "jedec,spi-nor". This allows (a) and (c) without warnings, and rejects (b). Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: nand: sunxi: Set serial access mode correctlyRoy Spliet2015-07-20
| | | | | | | | | | | | | | | | | | | | Replaces the hard coded "always use EDO" policy with that prescribed by the ONFI 3.1 specification that EDO mode should always be used if tRC is below 30ns. Signed-off-by: Roy Spliet <r.spliet@ultimaker.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: nand: sunxi: Replace failsafe timing cfg with calculated valueRoy Spliet2015-07-20
| | | | | | | | | | | | | | | | | | | | | | | | | | The TIMING_CFG register was previously statically set to a magic value (extracted from Allwinner's BSP) when initializing the NAND controller. Now that we have more details about the TIMING_CFG register layout (extracted from the A83 user manual) we can dynamically calculate the appropriate value for each NAND chip and set it when selecting the chip. Signed-off-by: Roy Spliet <r.spliet@ultimaker.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: spi-nor: set SECT_4K for n25q064 SPI flashAlexey Firago2015-07-20
| | | | | | | | | | | | | | Micron n25q064 flash supports 4 KiB erase sectors. Signed-off-by: Alexey Firago <alexey_firago@mentor.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: fsl-quadspi: Actually clear TX FIFO upon writeAlexander Stein2015-07-20
| | | | | | | | | | | | | | QUADSPI_MCR_CLR_TXF_MASK is the correct mask for clearing the TX FIFO. Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: r852: make ecc_reg 32-bit in r852_ecc_correctNicolas Iooss2015-07-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | r852_ecc_correct() reads a 32-bit register into a 16-bit variable, ecc_reg, but this variable is later used as if it was larger. This is reported by clang when building the kernel with many warnings: drivers/mtd/nand/r852.c:512:11: error: shift count >= width of type [-Werror,-Wshift-count-overflow] ecc_reg >>= 16; ^ ~~ Fix this by making ecc_reg 32-bit, like the return type of r852_read_reg_dword(). Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | nand: davinci: add support for 4K page size nand devicesSandeep Paulraj2015-07-20
| | | | | | | | | | | | | | | | | | | | | | | | It is needed for k2l keystone2 EVM which uses NAND flash with 4K page size, hence add support for 4K page size nand devices. [Brian: similar work submitted by Murali Karicheri <m-karicheri2@ti.com> and Hao Zhang <hzhang@ti.com>] Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: nandsim: fix double freeshengyong2015-07-06
| | | | | | | | | | | | | | | | Do not call free_device() in init_nandsim, the caller - ns_init_module - will take care of that if something goes wrong. Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: nandsim: fix free of NULL pointershengyong2015-07-06
| | | | | | | | | | | | | | | | If allocating ns->nand_pages_slab fails, do not try to destroy it when cleaning up nandsim resources. Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | Merge 4.2-rc1 into MTD -nextBrian Norris2015-07-06
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| * Merge tag 'modules-next-for-linus' of ↵Linus Torvalds2015-07-01
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module updates from Rusty Russell: "Main excitement here is Peter Zijlstra's lockless rbtree optimization to speed module address lookup. He found some abusers of the module lock doing that too. A little bit of parameter work here too; including Dan Streetman's breaking up the big param mutex so writing a parameter can load another module (yeah, really). Unfortunately that broke the usual suspects, !CONFIG_MODULES and !CONFIG_SYSFS, so those fixes were appended too" * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (26 commits) modules: only use mod->param_lock if CONFIG_MODULES param: fix module param locks when !CONFIG_SYSFS. rcu: merge fix for Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE() module: add per-module param_lock module: make perm const params: suppress unused variable error, warn once just in case code changes. modules: clarify CONFIG_MODULE_COMPRESS help, suggest 'N'. kernel/module.c: avoid ifdefs for sig_enforce declaration kernel/workqueue.c: remove ifdefs over wq_power_efficient kernel/params.c: export param_ops_bool_enable_only kernel/params.c: generalize bool_enable_only kernel/module.c: use generic module param operaters for sig_enforce kernel/params: constify struct kernel_param_ops uses sysfs: tightened sysfs permission checks module: Rework module_addr_{min,max} module: Use __module_address() for module_address_lookup() module: Make the mod_tree stuff conditional on PERF_EVENTS || TRACING module: Optimize __module_address() using a latched RB-tree rbtree: Implement generic latch_tree seqlock: Introduce raw_read_seqcount_latch() ...
| | * kernel/params: constify struct kernel_param_ops usesLuis R. Rodriguez2015-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most code already uses consts for the struct kernel_param_ops, sweep the kernel for the last offending stragglers. Other than include/linux/moduleparam.h and kernel/params.c all other changes were generated with the following Coccinelle SmPL patch. Merge conflicts between trees can be handled with Coccinelle. In the future git could get Coccinelle merge support to deal with patch --> fail --> grammar --> Coccinelle --> new patch conflicts automatically for us on patches where the grammar is available and the patch is of high confidence. Consider this a feature request. Test compiled on x86_64 against: * allnoconfig * allmodconfig * allyesconfig @ const_found @ identifier ops; @@ const struct kernel_param_ops ops = { }; @ const_not_found depends on !const_found @ identifier ops; @@ -struct kernel_param_ops ops = { +const struct kernel_param_ops ops = { }; Generated-by: Coccinelle SmPL Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Junio C Hamano <gitster@pobox.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Kees Cook <keescook@chromium.org> Cc: Tejun Heo <tj@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: cocci@systeme.lip6.fr Cc: linux-kernel@vger.kernel.org Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
| * | Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-blockLinus Torvalds2015-06-25
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull cgroup writeback support from Jens Axboe: "This is the big pull request for adding cgroup writeback support. This code has been in development for a long time, and it has been simmering in for-next for a good chunk of this cycle too. This is one of those problems that has been talked about for at least half a decade, finally there's a solution and code to go with it. Also see last weeks writeup on LWN: http://lwn.net/Articles/648292/" * 'for-4.2/writeback' of git://git.kernel.dk/linux-block: (85 commits) writeback, blkio: add documentation for cgroup writeback support vfs, writeback: replace FS_CGROUP_WRITEBACK with SB_I_CGROUPWB writeback: do foreign inode detection iff cgroup writeback is enabled v9fs: fix error handling in v9fs_session_init() bdi: fix wrong error return value in cgwb_create() buffer: remove unusued 'ret' variable writeback: disassociate inodes from dying bdi_writebacks writeback: implement foreign cgroup inode bdi_writeback switching writeback: add lockdep annotation to inode_to_wb() writeback: use unlocked_inode_to_wb transaction in inode_congested() writeback: implement unlocked_inode_to_wb transaction and use it for stat updates writeback: implement [locked_]inode_to_wb_and_lock_list() writeback: implement foreign cgroup inode detection writeback: make writeback_control track the inode being written back writeback: relocate wb[_try]_get(), wb_put(), inode_{attach|detach}_wb() mm: vmscan: disable memcg direct reclaim stalling if cgroup writeback support is in use writeback: implement memcg writeback domain based throttling writeback: reset wb_domain->dirty_limit[_tstmp] when memcg domain size changes writeback: implement memcg wb_domain writeback: update wb_over_bg_thresh() to use wb_domain aware operations ...
| | * | writeback: separate out include/linux/backing-dev-defs.hTejun Heo2015-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the planned cgroup writeback support, backing-dev related declarations will be more widely used across block and cgroup; unfortunately, including backing-dev.h from include/linux/blkdev.h makes cyclic include dependency quite likely. This patch separates out backing-dev-defs.h which only has the essential definitions and updates blkdev.h to include it. c files which need access to more backing-dev details now include backing-dev.h directly. This takes backing-dev.h off the common include dependency chain making it a lot easier to use it across block and cgroup. v2: fs/fat build failure fixed. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | Merge tag 'upstream-4.2-rc1' of git://git.infradead.org/linux-ubifsLinus Torvalds2015-06-25
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull UBI/UBIFS updates from Richard Weinberger: "Minor fixes for UBI and UBIFS" * tag 'upstream-4.2-rc1' of git://git.infradead.org/linux-ubifs: UBI: Remove unnecessary `\' UBI: Use static class and attribute groups UBI: add a helper function for updatting on-flash layout volumes UBI: Fastmap: Do not add vol if it already exists UBI: Init vol->reserved_pebs by assignment UBI: Fastmap: Rename variables to make them meaningful UBI: Fastmap: Remove unnecessary `\' UBI: Fastmap: Use max() to get the larger value ubifs: fix to check error code of register_shrinker UBI: block: Dynamically allocate minor numbers
| | * | | UBI: Remove unnecessary `\'shengyong2015-06-03
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
| | * | | UBI: Use static class and attribute groupsTakashi Iwai2015-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch cleans up the manual device_create_file() or class_create_file() calls by replacing with static attribute groups. It simplifies the code and also avoids the possible races between the device/class registration and sysfs creations. For the simplification, also make ubi_class a static instance with initializers, too. Amend a bit by Hujianyang. Signed-off-by: Takashi Iwai <tiwai@suse.de> Tested-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: hujianyang <hujianyang@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
| | * | | UBI: add a helper function for updatting on-flash layout volumesshengyong2015-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
| | * | | UBI: Fastmap: Do not add vol if it already existsshengyong2015-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During fastmap attaching, check if a volume already exists when adding the volume to volume tree. NOTE that the issue cannot happen, only if the on-flash fastmap data is modified. Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
| | * | | UBI: Init vol->reserved_pebs by assignmentshengyong2015-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `vol' is a newly allocated value by kzalloc. Initialize it by assignment instead of `+='. Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
| | * | | UBI: Fastmap: Rename variables to make them meaningfulshengyong2015-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | s/fmpl1/fmpl s/fmpl2/fmpl_wl Add "WL" to the error message when wrong WL pool magic number is detected. Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
| | * | | UBI: Fastmap: Remove unnecessary `\'shengyong2015-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
| | * | | UBI: Fastmap: Use max() to get the larger valueshengyong2015-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
| | * | | UBI: block: Dynamically allocate minor numbersDan Ehrenberg2015-06-02
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes ubiblock devices have minor numbers beginning from 0, allocated dynamically independently of the ubi device/volume number. This property becomes useful because, on 32-bit architectures with LFS turned off in a userspace program, device minor numbers over 8 bits cause stat to return -EOVERFLOW. If the device number is high (>1) due to multiple MTD partitions, such an overflow will occur. While enabling LFS is clearly a nicer solution, it's often difficult to turn on in practice globally as many widely distributed packages don't work with LFS on. Other storage systems have their own workarounds, with SCSI making multiple device majors and MMC having a config option for the number of partitions per device. A completely dynamic minor numbering is simpler than these. It is unlikely that anyone is depending on a static minor number since the major is dynamic anyway. In addition, ubiblock is still relatively new, so now is the time to make such changes. Signed-off-by: Dan Ehrenberg <dehrenberg@chromium.org> Acked-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by: Richard Weinberger <richard@nod.at>
| * | | Merge tag 'powerpc-4.2-1' of ↵Linus Torvalds2015-06-24
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux Pull powerpc updates from Michael Ellerman: - disable the 32-bit vdso when building LE, so we can build with a 64-bit only toolchain. - EEH fixes from Gavin & Richard. - enable the sys_kcmp syscall from Laurent. - sysfs control for fastsleep workaround from Shreyas. - expose OPAL events as an irq chip by Alistair. - MSI ops moved to pci_controller_ops by Daniel. - fix for kernel to userspace backtraces for perf from Anton. - merge pseries and pseries_le defconfigs from Cyril. - CXL in-kernel API from Mikey. - OPAL prd driver from Jeremy. - fix for DSCR handling & tests from Anshuman. - Powernv flash mtd driver from Cyril. - dynamic DMA Window support on powernv from Alexey. - LLVM clang fixes & workarounds from Anton. - reworked version of the patch to abort syscalls when transactional. - fix the swap encoding to support 4TB, from Aneesh. - various fixes as usual. - Freescale updates from Scott: Highlights include more 8xx optimizations, an e6500 hugetlb optimization, QMan device tree nodes, t1024/t1023 support, and various fixes and cleanup. * tag 'powerpc-4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (180 commits) cxl: Fix typo in debug print cxl: Add CXL_KERNEL_API config option powerpc/powernv: Fix wrong IOMMU table in pnv_ioda_setup_bus_dma() powerpc/mm: Change the swap encoding in pte. powerpc/mm: PTE_RPN_MAX is not used, remove the same powerpc/tm: Abort syscalls in active transactions powerpc/iommu/ioda2: Enable compile with IOV=on and IOMMU_API=off powerpc/include: Add opal-prd to installed uapi headers powerpc/powernv: fix construction of opal PRD messages powerpc/powernv: Increase opal-irqchip initcall priority powerpc: Make doorbell check preemption safe powerpc/powernv: pnv_init_idle_states() should only run on powernv macintosh/nvram: Remove as unused powerpc: Don't use gcc specific options on clang powerpc: Don't use -mno-strict-align on clang powerpc: Only use -mtraceback=no, -mno-string and -msoft-float if toolchain supports it powerpc: Only use -mabi=altivec if toolchain supports it powerpc: Fix duplicate const clang warning in user access code vfio: powerpc/spapr: Support Dynamic DMA windows vfio: powerpc/spapr: Register memory and define IOMMU v2 ...
| | * | | mtd: powernv: Add powernv flash MTD abstraction driverCyril Bur2015-06-11
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Powerpc powernv platforms allow access to certain system flash devices through a firmwarwe interface. This change adds an mtd driver for these flash devices. Minor updates from Jeremy Kerr and Joel Stanley. Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Reviewed-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | / | mtd: fsl-quadspi: Access multiple chips simultaneouslyHan Xu2015-06-23
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | Add supports for simultaneous access to multiple chips. Need to lock the mutex before any quad spi operations and unlock the mutex after operations complete. Signed-off-by: Han Xu <b45815@freescale.com> [Brian: reworked err path in fsl_qspi_prep()] Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | | mtd: docg3: Fix kasprintf() usageRichard Weinberger2015-06-16
| | | | | | | | | | | | | | | | | | | | | | | | kasprintf() does a dynamic memory allocation and can fail. We have to handle that case. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | | mtd: docg3: Don't leak docg3->bbt in error pathRichard Weinberger2015-06-16
| | | | | | | | | | | | | | | Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | | mtd: nandsim: Fix kasprintf() usageRichard Weinberger2015-06-16
| | | | | | | | | | | | | | | | | | | | | | | | kasprintf() used in get_partition_name() does a dynamic memory allocation and can fail. We have to handle that case. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | | mtd: cs553x_nand: Fix kasprintf() usageRichard Weinberger2015-06-16
| | | | | | | | | | | | | | | | | | | | | | | | kasprintf() does a dynamic memory allocation and can fail. We have to handle that case. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | | mtd: r852: Fix device_create_file() usageRichard Weinberger2015-06-16
| | | | | | | | | | | | | | | | | | | | | | | | device_create_file() can fail, therefore we have to handle this case and abort. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | | mtd: brcmnand: drop unnecessary initializationBrian Norris2015-06-16
| | | | | | | | | | | | Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | | mtd: propagate error codes from add_mtd_device()Brian Norris2015-06-16
| | | | | | | | | | | | | | | | | | | | | It makes more sense to return error statuses, not 1/0. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Reviewed-by: Richard Weinberger <richard@nod.at>
* | | mtd: diskonchip: remove two-phase partitioning / registrationBrian Norris2015-06-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is a Bad Idea (TM) to call mtd_device_register() or mtd_device_parse_register() twice on the same master MTD. Among other things, it makes partition overrides (e.g., cmdlinepart) much more difficult. Since commit 727dc612c46b ("mtd: part: Create the master device node when partitioned"), we now have a config option that accomplishes the same purpose as the double-registration done in diskonchip.c -- it forces the master MTD to *always* be registered, while partitions may optionally show up in addition. Eventually, we might like to make CONFIG_MTD_PARTITIONED_MASTER into the default, but this could be disruptive to user-space expectations of MTD numbering, so we'll take that slowly. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Cc: Richard Weinberger <richard@nod.at> Cc: Alexander Shiyan <shc_work@mail.ru>
* | | mtd: dc21285: use raw spinlock functions for nw_gpio_lockUwe Kleine-König2015-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit bd31b85960a7 (which is in 3.2-rc1) nw_gpio_lock is a raw spinlock that needs usage of the corresponding raw functions. This fixes: drivers/mtd/maps/dc21285.c: In function 'nw_en_write': drivers/mtd/maps/dc21285.c:41:340: warning: passing argument 1 of 'spinlock_check' from incompatible pointer type spin_lock_irqsave(&nw_gpio_lock, flags); In file included from include/linux/seqlock.h:35:0, from include/linux/time.h:5, from include/linux/stat.h:18, from include/linux/module.h:10, from drivers/mtd/maps/dc21285.c:8: include/linux/spinlock.h:299:102: note: expected 'struct spinlock_t *' but argument is of type 'struct raw_spinlock_t *' static inline raw_spinlock_t *spinlock_check(spinlock_t *lock) ^ drivers/mtd/maps/dc21285.c:43:25: warning: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type spin_unlock_irqrestore(&nw_gpio_lock, flags); ^ In file included from include/linux/seqlock.h:35:0, from include/linux/time.h:5, from include/linux/stat.h:18, from include/linux/module.h:10, from drivers/mtd/maps/dc21285.c:8: include/linux/spinlock.h:370:91: note: expected 'struct spinlock_t *' but argument is of type 'struct raw_spinlock_t *' static inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags) Fixes: bd31b85960a7 ("locking, ARM: Annotate low level hw locks as raw") Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | | mtd: chips: fixup dependencies, to prevent build errorBrian Norris2015-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 4612c715a6ea ("mtd: cfi: deinline large functions") moved some code into the cfi_util library without creating a new dependency. So we can get build failures like the following, when CONFIG_MTD_JEDECPROBE=y and CONFIG_MTD_CFI_UTIL=m. drivers/built-in.o: In function `jedec_read_id': >> jedec_probe.c:(.text+0x187ed8): undefined reference to `cfi_build_cmd_addr' drivers/built-in.o: In function `jedec_read_mfr': >> jedec_probe.c:(.text+0x187f4a): undefined reference to `cfi_build_cmd_addr' drivers/built-in.o: In function `jedec_reset': >> jedec_probe.c:(.text+0x187fe0): undefined reference to `cfi_send_gen_cmd' >> jedec_probe.c:(.text+0x188004): undefined reference to `cfi_send_gen_cmd' >> jedec_probe.c:(.text+0x18802b): undefined reference to `cfi_send_gen_cmd' >> jedec_probe.c:(.text+0x18804e): undefined reference to `cfi_send_gen_cmd' drivers/built-in.o: In function `jedec_probe_chip': >> jedec_probe.c:(.text+0x188130): undefined reference to `cfi_build_cmd_addr' >> jedec_probe.c:(.text+0x18814d): undefined reference to `cfi_build_cmd_addr' >> jedec_probe.c:(.text+0x1881dc): undefined reference to `cfi_send_gen_cmd' >> jedec_probe.c:(.text+0x188203): undefined reference to `cfi_send_gen_cmd' >> jedec_probe.c:(.text+0x18822d): undefined reference to `cfi_send_gen_cmd' >> jedec_probe.c:(.text+0x1884c0): undefined reference to `cfi_send_gen_cmd' >> jedec_probe.c:(.text+0x1884e7): undefined reference to `cfi_send_gen_cmd' drivers/built-in.o:jedec_probe.c:(.text+0x188511): more undefined references to `cfi_send_gen_cmd' follow drivers/built-in.o: In function `jedec_probe_chip': >> jedec_probe.c:(.text+0x188618): undefined reference to `cfi_build_cmd' So let's express the dependency properly. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | | mtd: cfi_cmdset_0002: Initialize datum before calling map_word_load_partialChristian Riesch2015-05-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | In do_otp_write we must initialize the variable datum before calling map_word_load_partial. Otherwise the upper bits of datum may be undefined, which later causes problems in chip_good called by do_write_oneword. Signed-off-by: Christian Riesch <christian.riesch@omicron.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | | mtd: cfi: deinline large functionsDenys Vlasenko2015-05-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this .config: http://busybox.net/~vda/kernel_config, after uninlining these functions have sizes and callsite counts as follows: cfi_udelay(): 74 bytes, 26 callsites cfi_send_gen_cmd(): 153 bytes, 95 callsites cfi_build_cmd(): 274 bytes, 123 callsites cfi_build_cmd_addr(): 49 bytes, 15 callsites cfi_merge_status(): 230 bytes, 3 callsites Reduction in code size is about 50,000: text data bss dec hex filename 85842882 22294584 20627456 128764922 7accbfa vmlinux.before 85789648 22294616 20627456 128711720 7abfc28 vmlinux Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> CC: Dan Carpenter <dan.carpenter@oracle.com> CC: Jingoo Han <jg1.han@samsung.com> CC: Brian Norris <computersforpeace@gmail.com> CC: Aaron Sierra <asierra@xes-inc.com> CC: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> CC: David Woodhouse <David.Woodhouse@intel.com> CC: linux-mtd@lists.infradead.org CC: linux-kernel@vger.kernel.org Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | | mtd: lantiq-flash: use default partition parsersBrian Norris2015-05-27
| | | | | | | | | | | | | | | | | | The default implementation already probes for cmdlinepart and ofpart. Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | | mtd: plat_nand: use default partition probeBrian Norris2015-05-27
| | | | | | | | | | | | | | | | | | | | | | | | It's harmless to add 'ofpart' (the only different parser supported in default mtdpart.c) to plat_nand. That let's us kill off one more custom partition prober listing. Signed-off-by: Brian Norris <computersforpeace@gmail.com>
generated by cgit v1.2.3 (git 2.25.1) at 2026-05-05 22:56:05 +0000