- 29 Feb, 2016 40 commits
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Javier González authored
BugLink: http://bugs.launchpad.net/bugs/1531539 Currently, a rrpc block only points to its nvm_lun. If a user wants to find the associated rrpc lun, it will have to calculate the index and look it up manually. By referencing the rrpc lun directly, this step can be omitted, at the cost of a larger memory footprint. This is important for upcoming patches that implement write buffering in rrpc. Signed-off-by:
Javier González <javier@cnexlabs.com> Signed-off-by:
Matias Bjørling <m@bjorling.me> Signed-off-by:
Jens Axboe <axboe@fb.com> (cherry picked from commit d7a64d27) Signed-off-by:
Tim Gardner <tim.gardner@canonical.com>
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Matias Bjørling authored
BugLink: http://bugs.launchpad.net/bugs/1531539 Internal logic for both core and media managers, does not have a backing bio for issuing I/Os. Introduce nvm_submit_ppa to allow raw I/Os to be submitted to the underlying device driver. The function request the device, ppa, data buffer and its length and will submit the I/O synchronously to the device. The return value may therefore be used to detect any errors regarding the issued I/O. Signed-off-by:
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Matias Bjørling authored
BugLink: http://bugs.launchpad.net/bugs/1531539 Instead of passing request error into the LightNVM modules, incorporate it into the nvm_rq. Signed-off-by:
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Matias Bjørling authored
BugLink: http://bugs.launchpad.net/bugs/1531539 Sometimes a user want to erase multiple PPAs at the same time. Extend nvm_erase_ppa to take multiple ppas and number of ppas to be erased. Signed-off-by:
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Wenwei Tao authored
BugLink: http://bugs.launchpad.net/bugs/1531539 There is no need to check whether dev's pages per block is beyond rrpc support every time we init a lun, we only need to check it once before enter the lun init loop. Signed-off-by:
Wenwei Tao <ww.tao0320@gmail.com> Signed-off-by:
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Matias Bjørling authored
BugLink: http://bugs.launchpad.net/bugs/1531539 The Westlake controller requires that the PPA list has sectors defined sequentially. Currently, the PPA list is created with planes first, then sectors. Change this to sectors first, then planes. Signed-off-by:
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Wenwei Tao authored
BugLink: http://bugs.launchpad.net/bugs/1531539 This patch fix two issues in rrpc_lun_gc 1. prio_list is protected by rrpc_lun's lock not nvm_lun's, so acquire rlun's lock instead of lun's before operate on the list. 2. we delete block from prio_list before allocating gcb, but gcb allocation may fail, we end without putting it back to the list, this makes the block won't get reclaimed in the future. To solve this issue, delete block after gcb allocation. Signed-off-by:
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Wenwei Tao authored
BugLink: http://bugs.launchpad.net/bugs/1531539 We delete a block from the gc list before reclaim it, so put it back to the list on its reclaim fail, otherwise this block will not get reclaimed and be programmable in the future. Signed-off-by:
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Wenwei Tao authored
BugLink: http://bugs.launchpad.net/bugs/1531539 We should check last io completion status before starting another one. Signed-off-by:
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Matias Bjørling authored
BugLink: http://bugs.launchpad.net/bugs/1531539 During get_bb_tbl, a callback is used to allow an user-specific scan function to be called. The callback may return an error, and in that case, the return value is overridden. However, the callback error is needed when the fault is a user error and not a kernel error. For example, when a user tries to initialize the same device twice. The get_bb_tbl callback should be able to communicate this. Signed-off-by:
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Matias Bjørling authored
BugLink: http://bugs.launchpad.net/bugs/1531539 To implement sync I/O support within the LightNVM core, the end_io functions are refactored to take an end_io function pointer instead of testing for initialized media manager, followed by calling its end_io function. Sync I/O can then be implemented using a callback that signal I/O completion. This is similar to the logic found in blk_to_execute_io(). By implementing it this way, the underlying device I/Os submission logic is abstracted away from core, targets, and media managers. Signed-off-by:
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Matias Bjørling authored
BugLink: http://bugs.launchpad.net/bugs/1531539 A device may be driven in single, double or quad plane mode. In that case, the rqd must have either one, two, or four PPAs set for a single PPA sent to the device. Refactor this logic into their own functions to be shared by program/erase/read in the core. Signed-off-by:
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Matias Bjørling authored
BugLink: http://bugs.launchpad.net/bugs/1531539 A device may function in single, dual or quad plane mode. The gennvm media manager manages this with explicit helpers. They convert a single ppa to 1, 2 or 4 separate ppas in a ppa list. To aid implementation of recovery and system blocks, this functionality can be moved directly into the core. Signed-off-by:
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Wenwei Tao authored
BugLink: http://bugs.launchpad.net/bugs/1531539 When rrpc_write_ppalist_rq and rrpc_read_ppalist_rq succeed, we setup rq correctly, but nvm_submit_io may afterward fail since it cannot allocate request or nvme_nvm_command, we return error but forget to cleanup the previous work. Signed-off-by:
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Javier Gonzalez authored
BugLink: http://bugs.launchpad.net/bugs/1531539 The mempool allocation might fail. Make sure to return error when it does, instead of causing a kernel panic. Signed-off-by:
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Chao Yu authored
BugLink: http://bugs.launchpad.net/bugs/1531539 When initing bad block list in gennvm_block_bb, once we move bad block from free_list to bb_list, we should maintain both stat info nr_free_blocks and nr_bad_blocks. So this patch fixes to add missing operation related to nr_free_blocks. Signed-off-by:
Chao Yu <chao2.yu@samsung.com> Signed-off-by:
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Wenwei Tao authored
BugLink: http://bugs.launchpad.net/bugs/1531539 Put bio when submission fails, since we get it before submission. And return error when backend device driver doesn't provide a submit_io method, thus we can end IO properly. Signed-off-by:
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Andy Whitcroft authored
BugLink: http://bugs.launchpad.net/bugs/1536810Signed-off-by:
Andy Whitcroft <apw@canonical.com>
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Andy Whitcroft authored
This reverts commit fac8e7e04e5649ff40cb920385c95c7449a4f6f9. BugLink: http://bugs.launchpad.net/bugs/1538618Signed-off-by:
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Vipin K Parashar authored
BugLink: http://bugs.launchpad.net/bugs/1539102 Kernel prints respective warnings about various EPOW events for user information/action after parsing EPOW interrupts. At times below EPOW reset event warning is seen to be flooding kernel log over a period of time. May 25 03:46:34 alp kernel: Non critical power or cooling issue cleared May 25 03:46:52 alp kernel: Non critical power or cooling issue cleared May 25 03:53:48 alp kernel: Non critical power or cooling issue cleared May 25 03:55:46 alp kernel: Non critical power or cooling issue cleared May 25 03:56:34 alp kernel: Non critical power or cooling issue cleared May 25 03:59:04 alp kernel: Non critical power or cooling issue cleared May 25 04:02:01 alp kernel: Non critical power or cooling issue cleared These EPOW reset events are spurious in nature and are triggered by firmware without an actual EPOW event being reset. This patch avoids these multiple EPOW reset warnings by using a counter variable. This variable is incremented every time an EPOW event is reported. Upon receiving a EPOW reset event the same variable is checked to filter out spurious events and decremented accordingly. This patch also improves log messages to better describe EPOW event being reported. Merged adjacent log messages into single one to reduce number of lines printed per event. Signed-off-by:
Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by:
Vipin K Parashar <vipin@linux.vnet.ibm.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> (cherry picked from commit b4af279a) Signed-off-by:
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Tim Gardner authored
Ignore: yes Signed-off-by: -
Andy Whitcroft authored
Signed-off-by: -
Andy Whitcroft authored
In e56f81e0 "dm: refactor ioctl handling" the target specific ioctl operation was removed in favour of providing a mapping to the underlying device, to which ioctls are all assumed to apply. This prevents targets from having target specific ioctls. Introduce a new target_ioctl callback which (if present) is offered the command and arguments for processing. This callback can return -ENOTTY to indicate the ioctl should be passed on to the underlying device as normal. BugLink: http://bugs.launchpad.net/bugs/1538618Signed-off-by:
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Andy Whitcroft authored
From 15.10 onwards python2 is no longer the default python and is no longer installed by default. Switch to python3 which is. This delta is much larger than the nominal changes as inconsistent spacing is now an error. I have also corrected the use of loose strings as comments. BugLink: http://bugs.launchpad.net/bugs/1506521Signed-off-by:
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Dan Carpenter authored
The "> MAX_CONTEXT" should be ">= MAX_CONTEXT". Otherwise we go one step beyond the end of the cfg->ctx_tbl[] array. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
Manoj Kumar <manoj@linux.vnet.ibm.com> Reviewed-by:
Johannes Thumshirn <jthumshirn@suse.de> Acked-by:
Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> (cherry picked from commit e37390be) Signed-off-by:
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Tim Gardner authored
This reverts commit c8433a26b0dec49938c6007de4b232ad30af8616. Reverting in favor of upstream e37390beSigned-off-by:
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Souvik Kumar Chakravarty authored
BugLink: http://bugs.launchpad.net/bugs/1520457 This implements debugfs interfaces for reading the telemetry samples from SSRAM and configuring firmware trace verbosity. Interface created under /sys/kernel/debug/telemetry soc_states: SoC Device and Low Power States pss_info: Info from the Primary SubSystem ioss_info: Info from IO SubSusytem pss_trace_verbosity: Read/Modify PSS F/W trace verbosity ioss_trace_verbosity: Read/Modify IOSS F/W trace verbosity. Signed-off-by:
Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com> (cherry picked from commit 87bee290) Signed-off-by:
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Souvik Kumar Chakravarty authored
BugLink: http://bugs.launchpad.net/bugs/1520457 Telemetry platform driver implements the telemetry interfaces. Currently it supports ApolloLake. It uses the PUNIT and PMC IPC interfaces to configure the telemetry samples to read. The samples are read from a Secure SRAM region. Signed-off-by:
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Souvik Kumar Chakravarty authored
BugLink: http://bugs.launchpad.net/bugs/1520457 Telemetry Device is created by the pmc_ipc driver. Resources are populated according SSRAM region as indicated by the BIOS tables. Signed-off-by:
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Qipeng Zha authored
BugLink: http://bugs.launchpad.net/bugs/1520457 BIOS restructure exported memory resources for Punit in acpi table, So update resources for Punit. Signed-off-by:
Qipeng Zha <qipeng.zha@intel.com> Reviewed-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
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Souvik Kumar Chakravarty authored
BugLink: http://bugs.launchpad.net/bugs/1520457 Intel PM Telemetry is a software mechanism via which various SoC PM and performance related parameters like PM counters, firmware trace verbosity, the status of different devices inside the SoC, etc. can be monitored and analyzed. The different samples that may be monitored can be configured at runtime via exported APIs. This patch adds the telemetry core driver that implements basic exported APIs. Signed-off-by:
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Qipeng Zha authored
BugLink: http://bugs.launchpad.net/bugs/1520457 intel_punit_ipc_command() maybe called when in or out data pointers are NULL. Signed-off-by:
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Qipeng Zha authored
BugLink: http://bugs.launchpad.net/bugs/1520457 This driver provides support for P-Unit mailbox IPC on Intel platforms. The heart of the P-Unit is the Foxton microcontroller and its firmware, which provide mailbox interface for power management usage. Signed-off-by:
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Tim Gardner authored
BugLink: http://bugs.launchpad.net/bugs/1520457Signed-off-by:
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Paolo Pisati authored
Disable support for the ZTE ZX Soc that was oopings when probed upon boot. Signed-off-by:
Paolo Pisati <paolo.pisati@canonical.com> Signed-off-by:
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Paolo Pisati authored
Boot essential for the BBB (MFD_TPS65217 and its regulator REGULATOR_TPS65217) Signed-off-by:
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Mika Kuoppala authored
BugLink: http://bugs.launchpad.net/bugs/1527462 There is conflicting info between E0 and F0 steppings for this workarounds. Trust more authoritative source and be conservative and extend also for F0. This prevents numerous (>50) gpu hangs with SKL GT4e during piglit run. References: HSD: gen9lp/2134184 Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Signed-off-by:
Mika Kuoppala <mika.kuoppala@intel.com> Reviewed-by:
Sagar Arun Kamble <sagar.a.kamble@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1449505785-20812-1-git-send-email-mika.kuoppala@intel.com (cherry picked from commit 6686ece1) Cc: stable@vger.kernel.org # v4.3+ Signed-off-by:
Jani Nikula <jani.nikula@intel.com> (cherry picked from commit 344df980) Signed-off-by:
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Mika Kuoppala authored
BugLink: http://bugs.launchpad.net/bugs/1527462 Add Skylake Intel Graphics GT4 PCI IDs v2: Rebase Signed-off-by:
Damien Lespiau <damien.lespiau@intel.com> Signed-off-by:
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Sagar Arun Kamble authored
BugLink: http://bugs.launchpad.net/bugs/1527462 WaRsDisableCoarsePowerGating: Coarse Power Gating (CPG) needs to be disabled for platforms prior to BXT B0 and SKL GT3/GT4 till E0. v2: Added GT3/GT4 Check. Change-Id: Ia3c4c16e050c88d3e259f601054875c812d69c3a Signed-off-by:
Alex Dai <yu.dai@intel.com> [danvet: Align continuation properly.] Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> (back ported from commit f2d2fe95) Signed-off-by:
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Harish Chegondi authored
BugLink: http://bugs.launchpad.net/bugs/1461360 Call uncore_pci_box_ctl() function to get the PMON box control MSR offset instead of hard coding the offset. This would allow us to use this snbep_uncore_pci_init_box() function for other PCI PMON devices whose box control MSR offset is different from SNBEP_PCI_PMON_BOX_CTL. Signed-off-by:
Harish Chegondi <harish.chegondi@intel.com> Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andi Kleen <andi.kleen@intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Harish Chegondi <harish.chegondi@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Lukasz Anaczkowski <lukasz.anaczkowski@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Link: http://lkml.kernel.org/r/872e8ef16cfc38e5ff3b45fac1094e6f1722e4ad.1449470704.git.harish.chegondi@intel.comSigned-off-by:
Ingo Molnar <mingo@kernel.org> (cherry picked from commit dae25530) Signed-off-by:
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