summaryrefslogtreecommitdiffstats
path: root/drivers/ata
Commit message (Collapse)AuthorAgeFilesLines
* Merge branch 'for-4.15' of ↵Linus Torvalds2017-11-1514-74/+204
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata updates from Tejun Heo: "Nothing too interesting or alarming. Other than a new power saving mode addition to ahci and crash fix on a tracepoint, all changes are trivial or device-specific" * 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (22 commits) ahci: imx: Handle increased read failures for IMX53 temperature sensor in low frequency mode. ata: sata_dwc_460ex: Propagate platform device ID to DMA driver ata: fixes kernel crash while tracing ata_eh_link_autopsy event ata: pata_pdc2027x: Fix space before '[' error. libata: fix spelling mistake: 'ambigious' -> 'ambiguous' ata: ceva: Add SMMU support for SATA IP ata: ceva: Correct the suspend and resume logic for SATA ata: ceva: Correct the AXI bus configuration for SATA ports ata: ceva: Add CCI support for SATA if CCI is enabled ata: ceva: Make RxWaterMark value as module parameter ata: ceva: Disable Device Sleep capability ata: ceva: Add gen 3 mode support in driver ata: ceva: Move sata port phy oob settings to device-tree devicetree: bindings: Add sata port phy config parameters in ahci-ceva ata: mark expected switch fall-throughs ata: sata_mv: remove a redundant assignment to pointer ehi ahci: Add support for Cavium's fifth generation SATA controller ata: sata_rcar: Use of_device_get_match_data() helper libata: make ata_port_type const libata: make static arrays const, reduces object code size ...
| * ahci: imx: Handle increased read failures for IMX53 temperature sensor in ↵Egor Starkov2017-11-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | low frequency mode. Extended testing has shown that the imx ahci driver sometimes requires more than the 100 attempts currently alotted in the driver to perform a successful temperature reading when running at minimum (throttled) CPU frequency. Debugging suggests that the read cycle can take 160 attempts (which given that the driver averages 80 readings from the ADC equates to one failure on each read). Increase the attempt limit to 200 in order to greatly reduce the likelihood of the driver failing to perform a temperature reading, especially at low CPU frequency. Signed-off-by: Egor Starkov <egor.starkov@ge.com> Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: sata_dwc_460ex: Propagate platform device ID to DMA driverAndy Shevchenko2017-11-131-0/+1
| | | | | | | | | | | | | | | | Propagate platform device ID to DMA driver to distinguish relationship between DMA and SATA instances. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: fixes kernel crash while tracing ata_eh_link_autopsy eventRameshwar Prasad Sahu2017-11-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When tracing ata link error event, the kernel crashes when the disk is removed due to NULL pointer access by trace_ata_eh_link_autopsy API. This occurs as the dev is NULL when the disk disappeared. This patch fixes this crash by calling trace_ata_eh_link_autopsy only if "dev" is not NULL. v2 changes: Removed direct passing "link" pointer instead of "dev" in trace API. Signed-off-by: Rameshwar Prasad Sahu <rsahu@apm.com> Signed-off-by: Tejun Heo <tj@kernel.org> Fixes: 255c03d15a29 ("libata: Add tracepoints") Cc: stable@vger.kernel.org # v4.1+
| * ata: pata_pdc2027x: Fix space before '[' error.Arvind Yadav2017-10-301-3/+3
| | | | | | | | | | | | | | | | Fix checkpatch.pl error: ERROR: space prohibited before open square bracket '['. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata: fix spelling mistake: 'ambigious' -> 'ambiguous'Arvind Yadav2017-10-301-1/+1
| | | | | | | | | | | | | | Trivial fix to spelling mistakes in ata_parse_force_one(). Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: ceva: Add SMMU support for SATA IPAnurag Kumar Vulisha2017-10-231-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AXI master interface in CEVA AHCI controller requires two unique Write/Read ID tags per port. This is because, ahci controller uses different AXI ID[3:0] bits for identifying non-data transfers(like reading descriptors, updating PRD tables, etc) and data transfers (like sending/receiving FIS).To make SMMU work with SATA we need to add correct SMMU stream id for SATA. SMMU stream id for SATA is determined based on the AXI ID[1:0] as shown below SATA SMMU ID = <TBU number>, 0011, 00, 00, AXI ID[1:0] Note: SATA in ZynqMp uses TBU1 so TBU number = 0x1, so SMMU ID = 001, 0011, 00, 00, AXI ID[1:0] Since we have four different AXI ID[3:0] (2 for port0 & 2 for port1 as said above) we get four different SMMU stream id's combinations for SATA. These AXI ID can be configured using PAXIC register. In this patch we assumed the below AXI ID values Read ID/ Write ID for Non-Data Port0 transfers = 0 Read ID/ Write ID for Data Port0 transfers = 1 Read ID/ Write ID for Non-Data Port1 transfers = 2 Read ID/ Write ID for Data Port1 transfers = 3 Based on the above values,SMMU stream ID's for SATA will be 0x4c0 & 0x4c1 for PORT0, 0x4c2 & 0x4c3 for PORT1. These values needed to be added to iommus dts property. This patch does the same. Signed-off-by: Anurag Kumar Vulisha <anuragku@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: ceva: Correct the suspend and resume logic for SATAAnurag Kumar Vulisha2017-10-231-2/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The present suspend code disables the port interrupts and stops the HBA. On resume it enables the interrupts and HBA. This works fine until the FPD power domain is not off. If FPD is off then the ceva vendor specific configurations like OOB, AXI settings are lost, they need to be re-programmed and also since SERDES is also in FPD , SATA lane phy init needs to be called again (which is not happening in the present sequence) Because of this incorrect sequence SATA fails to work on resume. This patch corrects the code to make Suspend & Resume work in normal and FPD off cases. Signed-off-by: Anurag Kumar Vulisha <anuragku@xilinx.com> Reviewed-by: Shubhrajyoti Datta <shubhraj@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: ceva: Correct the AXI bus configuration for SATA portsAnurag Kumar Vulisha2017-10-231-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously PAXIC register was programmed before configuring PCFG register. PCFG should be programmed with the address of the port for which PAXIC should be configured for. This was not happening before, so only one port PAXIC was written correctly and the other port was having wrong value. This patch moves the PXAIC register write after configuring PCFG, doing so will correct the axi bus settings for sata port0 & port1. Signed-off-by: Anurag Kumar Vulisha <anuragku@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: ceva: Add CCI support for SATA if CCI is enabledAnurag Kumar Vulisha2017-10-231-0/+31
| | | | | | | | | | | | | | | | | | | | This patch adds support for CCI in SATA controller if CCI is enabled in design. This patch will add CCI settings for SATA if "dma-coherent" dts property is added. Signed-off-by: Anurag Kumar Vulisha <anuragku@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: ceva: Make RxWaterMark value as module parameterAnurag Kumar Vulisha2017-10-231-1/+5
| | | | | | | | | | | | | | | | | | This patch updates the driver to make Rx Fifo water mark value as a module parameter. Signed-off-by: Anurag Kumar Vulisha <anuragku@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: ceva: Disable Device Sleep capabilityAnurag Kumar Vulisha2017-10-231-0/+18
| | | | | | | | | | | | | | | | | | | | Since CEVA controller does not support Device Sleep capability, we need to clear that feature by clearing the DEVSLP bit in word78 of IDENTIFY DEVICE data. This patch does the same. Signed-off-by: Anurag Kumar Vulisha <anuragku@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: ceva: Add gen 3 mode support in driverAnurag Kumar Vulisha2017-10-231-2/+3
| | | | | | | | | | | | | | | | This patch sets gen 3 mode as default mode in ahci_ceva driver. Signed-off-by: Anurag Kumar Vulisha <anuragku@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: ceva: Move sata port phy oob settings to device-treeAnurag Kumar Vulisha2017-10-231-23/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In SATA Speed negotiation happens with OOB(Out of Band) signals. These OOB signal timing values are configured through vendor specific registers in the SATA controller. These OOB timings depends on the generator and detector clock frequency, which varies from board to board (ex: ep108 and zc1751 has different clock frequencies). To avoid maintaing these OOB settings in the driver, it is better to move these settings to the device-tree node and read from the device-tree. This patch does the same. Signed-off-by: Anurag Kumar Vulisha <anuragku@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: mark expected switch fall-throughsGustavo A. R. Silva2017-10-235-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. In cases where a "drop through" comment was already in place, I replaced it with a proper "fall through" comment, which is what GCC is expecting to find. Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: sata_mv: remove a redundant assignment to pointer ehiColin Ian King2017-10-231-3/+1
| | | | | | | | | | | | | | | | | | | | The pointer ehi is being assigned to a value that is never read and is redundant. Clean up the code and move the ehi declaration and initialization to the code block where it is used. Cleans up clang warning: Value stored to 'ehi' is never read Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ahci: Add support for Cavium's fifth generation SATA controllerRadha Mohan Chintakuntla2017-10-111-2/+7
| | | | | | | | | | | | | | | | | | | | This patch adds support for Cavium's fifth generation SATA controller. It is an on-chip controller and complies with AHCI 1.3.1. As the controller uses 64-bit addresses it cannot use the standard AHCI BAR5 and so uses BAR4. Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: sata_rcar: Use of_device_get_match_data() helperGeert Uytterhoeven2017-10-041-6/+1
| | | | | | | | | | | | | | | | | | | | Use the of_device_get_match_data() helper instead of open coding. Note that the sata_rcar driver is used with DT only, so there's always a valid match. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata: make ata_port_type constBhumika Goyal2017-10-022-2/+2
| | | | | | | | | | | | | | | | | | | | Make this const as it is only stored in the const field of a device structure. Make the declaration in header const too. Structure found using Coccinelle and changes done by hand. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata: make static arrays const, reduces object code sizeColin Ian King2017-09-191-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't populate const arrayis on the stack, instead make them static. Makes the object code smaller by over 260 bytes: Before: text data bss dec hex filename 64864 5948 4128 74940 124bc drivers/ata/libata-scsi.o After: text data bss dec hex filename 64183 6364 4128 74675 123b3 drivers/ata/libata-scsi.o Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: pata_artop: remove redundant initialization of pioColin Ian King2017-09-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | pio is initialized and the data is never read, instead it is almost immediately being updated to a new value. Fix this by removing the initialization. Detected by scan-build: "warning: Value stored to 'pio' during its initialization is never read" Fixes: 669a5db411d8 ("[libata] Add a bunch of PATA drivers") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata: Add new med_power_with_dipm link_power_management_policy settingHans de Goede2017-09-183-9/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As described by Matthew Garret quite a while back: https://mjg59.dreamwidth.org/34868.html Intel CPUs starting with the Haswell generation need SATA links to power down for the "package" part of the CPU to reach low power-states like PC7 / P8 which bring a significant power-saving with them. The default max_performance lpm policy does not allow for these high PC states, both the medium_power and min_power policies do allow this. The min_power policy saves significantly more power, but there are some reports of some disks / SSDs not liking min_power leading to system crashes and in some cases even data corruption has been reported. Matthew has found a document documenting the default settings of Intel's IRST Windows driver with which most laptops ship: https://www-ssl.intel.com/content/dam/doc/reference-guide/sata-devices-implementation-recommendations.pdf Matthew wrote a patch changing med_power to match those defaults, but that never got anywhere as some people where reporting issues with the patch-set that patch was a part of. This commit is another attempt to make the default IRST driver settings available under Linux, but instead of changing medium_power and potentially introducing regressions, this commit adds a new med_power_with_dipm setting which is identical to the existing medium_power accept that it enables dipm on top, which makes it match the Windows IRST driver settings, which should hopefully be safe to use on most devices. The med_power_with_dipm setting is close to min_power, except that: a) It does not use host-initiated slumber mode (ASP not set), but it does allow device-initiated slumber b) It does not enable DevSlp mode On my T440s test laptop I get the following power savings when idle: medium_power 0.9W med_power_with_dipm 1.2W min_power 1.2W Suggested-by: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* | Merge branch 'timers-core-for-linus' of ↵Linus Torvalds2017-11-135-11/+12
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer updates from Thomas Gleixner: "Yet another big pile of changes: - More year 2038 work from Arnd slowly reaching the point where we need to think about the syscalls themself. - A new timer function which allows to conditionally (re)arm a timer only when it's either not running or the new expiry time is sooner than the armed expiry time. This allows to use a single timer for multiple timeout requirements w/o caring about the first expiry time at the call site. - A new NMI safe accessor to clock real time for the printk timestamp work. Can be used by tracing, perf as well if required. - A large number of timer setup conversions from Kees which got collected here because either maintainers requested so or they simply got ignored. As Kees pointed out already there are a few trivial merge conflicts and some redundant commits which was unavoidable due to the size of this conversion effort. - Avoid a redundant iteration in the timer wheel softirq processing. - Provide a mechanism to treat RTC implementations depending on their hardware properties, i.e. don't inflict the write at the 0.5 seconds boundary which originates from the PC CMOS RTC to all RTCs. No functional change as drivers need to be updated separately. - The usual small updates to core code clocksource drivers. Nothing really exciting" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (111 commits) timers: Add a function to start/reduce a timer pstore: Use ktime_get_real_fast_ns() instead of __getnstimeofday() timer: Prepare to change all DEFINE_TIMER() callbacks netfilter: ipvs: Convert timers to use timer_setup() scsi: qla2xxx: Convert timers to use timer_setup() block/aoe: discover_timer: Convert timers to use timer_setup() ide: Convert timers to use timer_setup() drbd: Convert timers to use timer_setup() mailbox: Convert timers to use timer_setup() crypto: Convert timers to use timer_setup() drivers/pcmcia: omap1: Fix error in automated timer conversion ARM: footbridge: Fix typo in timer conversion drivers/sgi-xp: Convert timers to use timer_setup() drivers/pcmcia: Convert timers to use timer_setup() drivers/memstick: Convert timers to use timer_setup() drivers/macintosh: Convert timers to use timer_setup() hwrng/xgene-rng: Convert timers to use timer_setup() auxdisplay: Convert timers to use timer_setup() sparc/led: Convert timers to use timer_setup() mips: ip22/32: Convert timers to use timer_setup() ...
| * | ahci: Convert timers to use timer_setup()Kees Cook2017-10-192-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Adds a pointer back to link structure. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Tejun Heo <tj@kernel.org> Cc: linux-ide@vger.kernel.org Link: https://lkml.kernel.org/r/20171016215658.GA101965@beast
| * | libata: Convert timers to use timer_setup()Kees Cook2017-10-173-6/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Tejun Heo <tj@kernel.org> Cc: linux-ide@vger.kernel.org Link: https://lkml.kernel.org/r/20171005004842.GA23011@beast
* | | License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman2017-11-026-0/+6
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | ahci: don't ignore result code of ahci_reset_controller()Ard Biesheuvel2017-10-021-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ahci_pci_reset_controller() calls ahci_reset_controller(), which may fail, but ignores the result code and always returns success. This may result in failures like below ahci 0000:02:00.0: version 3.0 ahci 0000:02:00.0: enabling device (0000 -> 0003) ahci 0000:02:00.0: SSS flag set, parallel bus scan disabled ahci 0000:02:00.0: controller reset failed (0xffffffff) ahci 0000:02:00.0: failed to stop engine (-5) ... repeated many times ... ahci 0000:02:00.0: failed to stop engine (-5) Unable to handle kernel paging request at virtual address ffff0000093f9018 ... PC is at ahci_stop_engine+0x5c/0xd8 [libahci] LR is at ahci_deinit_port.constprop.12+0x1c/0xc0 [libahci] ... [<ffff000000a17014>] ahci_stop_engine+0x5c/0xd8 [libahci] [<ffff000000a196b4>] ahci_deinit_port.constprop.12+0x1c/0xc0 [libahci] [<ffff000000a197d8>] ahci_init_controller+0x80/0x168 [libahci] [<ffff000000a260f8>] ahci_pci_init_controller+0x60/0x68 [ahci] [<ffff000000a26f94>] ahci_init_one+0x75c/0xd88 [ahci] [<ffff000008430324>] local_pci_probe+0x3c/0xb8 [<ffff000008431728>] pci_device_probe+0x138/0x170 [<ffff000008585e54>] driver_probe_device+0x2dc/0x458 [<ffff0000085860e4>] __driver_attach+0x114/0x118 [<ffff000008583ca8>] bus_for_each_dev+0x60/0xa0 [<ffff000008585638>] driver_attach+0x20/0x28 [<ffff0000085850b0>] bus_add_driver+0x1f0/0x2a8 [<ffff000008586ae0>] driver_register+0x60/0xf8 [<ffff00000842f9b4>] __pci_register_driver+0x3c/0x48 [<ffff000000a3001c>] ahci_pci_driver_init+0x1c/0x1000 [ahci] [<ffff000008083918>] do_one_initcall+0x38/0x120 where an obvious hardware level failure results in an unnecessary 15 second delay and a subsequent crash. So record the result code of ahci_reset_controller() and relay it, rather than ignoring it. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
* | ata_piix: Add Fujitsu-Siemens Lifebook S6120 to short cable IDsVille Syrjälä2017-09-181-0/+1
|/ | | | | | | | | | | | | | Fujitsu-Siemens Lifebook S6120 misdetects the cable type for some drives. The problematic one in this case is an mSATA SSD hooked up via a mSATA->PATA bridge. With regular hard disks the detection seems to work correctly. Strangely an older Lifebook model (S6020) detects the cable as 80c with the mSATA SSD, even if using the exact same flex cable. Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* ata: avoid gcc-7 warning in ata_timing_quantizeArnd Bergmann2017-09-071-10/+10
| | | | | | | | | | | | | | gcc-7 warns about the result of a constant multiplication used as a boolean: drivers/ata/libata-core.c: In function 'ata_timing_quantize': drivers/ata/libata-core.c:3164:30: warning: '*' in boolean context, suggest '&&' instead [-Wint-in-bool-context] This slightly rearranges the macro to simplify the code and avoid the warning at the same time. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tejun Heo <tj@kernel.org>
* Merge branch 'for-4.14' of ↵Linus Torvalds2017-09-0612-43/+293
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata updates from Tejun Heo: "Except for the ahci fix that fixes a boot issue, nothing major in this pull request. Some new platform controller support and device specific changes" * 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: libata: zpodd: make arrays cdb static, reduces object code size ahci: don't use MSI for devices with the silly Intel NVMe remapping scheme dt-bindings: ata: add DT bindings for MediaTek SATA controller ata: mediatek: add support for MediaTek SATA controller pata_octeon_cf: use of_property_read_{bool|u32}() cs5536: add support for IDE controller variant ata: sata_gemini: Introduce explicit IDE pin control ata: sata_gemini: Retire custom pin control ata: ahci_platform: Add shutdown handler ata: sata_gemini: explicitly request exclusive reset control ata: Drop unnecessary static ata: Convert to using %pOF instead of full_name
| * libata: zpodd: make arrays cdb static, reduces object code sizeColin Ian King2017-09-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't populate the arrays cdb on the stack, instead make them static. Makes the object code smaller by 230 bytes: Before: text data bss dec hex filename 3797 240 0 4037 fc5 drivers/ata/libata-zpodd.o After: text data bss dec hex filename 3407 400 0 3807 edf drivers/ata/libata-zpodd.o Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ahci: don't use MSI for devices with the silly Intel NVMe remapping schemeChristoph Hellwig2017-09-061-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | Intel AHCI controllers that also hide NVMe devices in their bar can't use MSI interrupts, so disable them. Reported-by: John Loy <john.robert.loy@gmail.com> Tested-by: John Loy <john.robert.loy@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Fixes: d684a90d38e2 ("ahci: per-port msix support") Cc: stable@vger.kernel.org # v4.5+ Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: mediatek: add support for MediaTek SATA controllerRyder Lee2017-08-283-0/+207
| | | | | | | | | | | | | | | | | | This adds support the AHCI-compliant Serial ATA controller present on MediaTek SoCs. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Tejun Heo <tj@kernel.org>
| * pata_octeon_cf: use of_property_read_{bool|u32}()Sergei Shtylyov2017-08-281-6/+4
| | | | | | | | | | | | | | | | | | The Octeon CF driver basically open-codes of_property_read_{bool|u32}() using of_{find|get}_property() calls in its probe() method. Using the modern DT APIs saves 2 LoCs and 16 bytes of object code (MIPS gcc 3.4.3). Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * cs5536: add support for IDE controller variantAndrey Korolyov2017-08-112-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | Several legacy devices such as Geode-based Cisco ASA appliances and DB800 development board do possess CS5536 IDE controller with different PCI id than existing one. Using pata_generic is not always feasible as at least DB800 requires MSR quirk from pata_cs5536 to be used with vendor firmware. Signed-off-by: Andrey Korolyov <andrey@xdel.ru> CC: stable@vger.kernel.org Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: sata_gemini: Introduce explicit IDE pin controlLinus Walleij2017-08-111-0/+35
| | | | | | | | | | | | | | | | | | | | The IDE pins are managed by the pin controller, if we want to use these, we need to ask the pin controller to explicitly enable them as by default, these pins are used for other business and most users just rely on the SATA bridge. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: sata_gemini: Retire custom pin controlLinus Walleij2017-08-111-34/+0
| | | | | | | | | | | | | | | | | | | | | | | | I added a proper pin control driver for the Gemini SoC, so retire this custom code and rely on the pin controller to set up the pads. The "IOMUX" which is routing signals between the ATA and SATA bridge inside of the chip is not about pin control and remains in place. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: ahci_platform: Add shutdown handlerNate Watterson2017-08-042-0/+35
| | | | | | | | | | | | | | | | | | | | The newly introduced ahci_platform_shutdown() method is called during system shutdown to disable host controller DMA and interrupts in order to avoid potentially corrupting or otherwise interfering with a new kernel being started with kexec. Signed-off-by: Nate Watterson <nwatters@codeaurora.org> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: sata_gemini: explicitly request exclusive reset controlPhilipp Zabel2017-08-021-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit a53e35db70d1 ("reset: Ensure drivers are explicit when requesting reset lines") started to transition the reset control request API calls to explicitly state whether the driver needs exclusive or shared reset control behavior. Convert all drivers requesting exclusive resets to the explicit API call so the temporary transition helpers can be removed. No functional changes. Cc: linux-ide@vger.kernel.org Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: Drop unnecessary staticJulia Lawall2017-08-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Drop static on a local variable, when the variable is initialized before any possible use. Thus, the static has no benefit. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @bad exists@ position p; identifier x; type T; @@ static T x@p; ... x = <+...x...+> @@ identifier x; expression e; type T; position p != bad.p; @@ -static T x@p; ... when != x when strict ?x = e; // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: Convert to using %pOF instead of full_nameRob Herring2017-07-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Tejun Heo <tj@kernel.org> Cc: linux-ide@vger.kernel.org Signed-off-by: Tejun Heo <tj@kernel.org>
* | Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds2017-09-041-5/+3
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnad: "The main RCU related changes in this cycle were: - Removal of spin_unlock_wait() - SRCU updates - RCU torture-test updates - RCU Documentation updates - Extend the sys_membarrier() ABI with the MEMBARRIER_CMD_PRIVATE_EXPEDITED variant - Miscellaneous RCU fixes - CPU-hotplug fixes" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (63 commits) arch: Remove spin_unlock_wait() arch-specific definitions locking: Remove spin_unlock_wait() generic definitions drivers/ata: Replace spin_unlock_wait() with lock/unlock pair ipc: Replace spin_unlock_wait() with lock/unlock pair exit: Replace spin_unlock_wait() with lock/unlock pair completion: Replace spin_unlock_wait() with lock/unlock pair doc: Set down RCU's scheduling-clock-interrupt needs doc: No longer allowed to use rcu_dereference on non-pointers doc: Add RCU files to docbook-generation files doc: Update memory-barriers.txt for read-to-write dependencies doc: Update RCU documentation membarrier: Provide expedited private command rcu: Remove exports from rcu_idle_exit() and rcu_idle_enter() rcu: Add warning to rcu_idle_enter() for irqs enabled rcu: Make rcu_idle_enter() rely on callers disabling irqs rcu: Add assertions verifying blocked-tasks list rcu/tracing: Set disable_rcu_irq_enter on rcu_eqs_exit() rcu: Add TPS() protection for _rcu_barrier_trace strings rcu: Use idle versions of swait to make idle-hack clear swait: Add idle variants which don't contribute to load average ...
| * \ Merge branch 'for-mingo' of ↵Ingo Molnar2017-08-211-5/+3
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull RCU updates from Paul E. McKenney: - Removal of spin_unlock_wait() - SRCU updates - Torture-test updates - Documentation updates - Miscellaneous fixes - CPU-hotplug fixes - Miscellaneous non-RCU fixes Signed-off-by: Ingo Molnar <mingo@kernel.org>
| | * | drivers/ata: Replace spin_unlock_wait() with lock/unlock pairPaul E. McKenney2017-08-171-5/+3
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no agreed-upon definition of spin_unlock_wait()'s semantics, and it appears that all callers could do just as well with a lock/unlock pair. This commit therefore eliminates the spin_unlock_wait() call and associated else-clause and hoists the then-clause's lock and unlock out of the "if" statement. This should be safe from a performance perspective because according to Tejun there should be few if any drivers that don't set their own error handler. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Tejun Heo <tj@kernel.org> Cc: <linux-ide@vger.kernel.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Andrea Parri <parri.andrea@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org>
* | | Revert "libata: quirk read log on no-name M.2 SSD"Tejun Heo2017-08-291-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 35f0b6a779b8b7a98faefd7c1c660b4dac9a5c26. We now conditionalize issuing of READ LOG PAGE on the TRUSTED COMPUTING SUPPORTED bit in the identity data and this shouldn't be necessary. Signed-off-by: Tejun Heo <tj@kernel.org>
* | | libata: check for trusted computing in IDENTIFY DEVICE dataChristoph Hellwig2017-08-291-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ATA-8 and later mirrors the TRUSTED COMPUTING SUPPORTED bit in word 48 of the IDENTIFY DEVICE data. Check this before issuing a READ LOG PAGE command to avoid issues with buggy devices. The only downside is that we can't support Security Send / Receive for a device with an older revision due to the conflicting use of this field in earlier specifications. tj: The reason we need this is because some devices which don't support READ LOG PAGE lock up after getting issued that command. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: David Ahern <dsahern@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* | | libata: quirk read log on no-name M.2 SSDChristoph Hellwig2017-08-281-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ido reported that reading the log page on his systems fails, so quirk it as it won't support ZBC or security protocols. Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Ido Schimmel <idosch@mellanox.com> Tested-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* | | sata: ahci-da850: Fix some error handling paths in 'ahci_da850_probe()'Christophe JAILLET2017-08-161-2/+6
|/ / | | | | | | | | | | | | | | | | | | | | | | | | 'rc' is known to be 0 at this point. If 'platform_get_resource()' or 'devm_ioremap()' fail, return -ENOMEM instead of 0 which means success. tj: Changed error code from -ENOMEM to -ENODEV for get_resource failure as suggested by Sergei. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
* | libata: fix a couple of doc build warningsJonathan Corbet2017-07-311-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kerneldoc comments for a couple of functions in drivers/ata/libata-eh.c had fallen behind the current implementation, resulting in these doc build warnings: ./drivers/ata/libata-eh.c:1449: warning: No description found for parameter 'link' ./drivers/ata/libata-eh.c:1449: warning: Excess function parameter 'ap' description in 'ata_eh_done' ./drivers/ata/libata-eh.c:1590: warning: No description found for parameter 'qc' ./drivers/ata/libata-eh.c:1590: warning: Excess function parameter 'dev' description in 'ata_eh_request_sense' Update the comments and make the warnings go away. Signed-off-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Tejun Heo <tj@kernel.org>
* | libata: array underflow in ata_find_dev()Dan Carpenter2017-07-191-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | My static checker complains that "devno" can be negative, meaning that we read before the start of the loop. I've looked at the code, and I think the warning is right. This come from /proc so it's root only or it would be quite a quite a serious bug. The call tree looks like this: proc_scsi_write() <- gets id and channel from simple_strtoul() -> scsi_add_single_device() <- calls shost->transportt->user_scan() -> ata_scsi_user_scan() -> ata_find_dev() Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org # all versions at this point
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 11:21:02 +0000