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2020-07-31drm/msm/dpu: add support for dither block in displayKalyan Thota
This change enables dither block for primary interface in display. Enabled for 6bpc in the current version. Changes in v1: - Remove redundant error checks (Rob). Signed-off-by: Kalyan Thota <kalyan_t@codeaurora.org> Tested-by: Douglas Anderson <dianders@chromium.org> Tested-by: Kristian H. Kristensen <hoegsberg@google.com> Signed-off-by: Rob Clark <robdclark@chromium.org>
2020-07-31drm/msm/adreno: fix gpu probe if no interconnect-namesRob Clark
If there is no interconnect-names, but there is an interconnects property, then of_icc_get(dev, "gfx-mem"); would return an error rather than NULL. Also, if there is no interconnect-names property, there will never be a ocmem path. But of_icc_get(dev, "ocmem") would return -EINVAL instead of -ENODATA. Just don't bother trying in this case. v2: explicity check for interconnect-names property Fixes: 08af4769c7d2 ("drm/msm: handle for EPROBE_DEFER for of_icc_get") Fixes: 00bb9243d346 ("drm/msm/gpu: add support for ocmem interconnect path") Signed-off-by: Rob Clark <robdclark@chromium.org> Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
2020-07-31Bluetooth: Remove CRYPTO_ALG_INTERNAL flagHerbert Xu
The flag CRYPTO_ALG_INTERNAL is not meant to be used outside of the Crypto API. It isn't needed here anyway. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2020-07-31Bluetooth: Increment management interface revisionMarcel Holtmann
Increment the mgmt revision due to the recently added new commands. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2020-07-31powerpc/papr_scm: Add support for fetching nvdimm 'fuel-gauge' metricVaibhav Jain
We add support for reporting 'fuel-gauge' NVDIMM metric via PAPR_PDSM_HEALTH pdsm payload. 'fuel-gauge' metric indicates the usage life remaining of a papr-scm compatible NVDIMM. PHYP exposes this metric via the H_SCM_PERFORMANCE_STATS. The metric value is returned from the pdsm by extending the return payload 'struct nd_papr_pdsm_health' without breaking the ABI. A new field 'dimm_fuel_gauge' to hold the metric value is introduced at the end of the payload struct and its presence is indicated by by extension flag PDSM_DIMM_HEALTH_RUN_GAUGE_VALID. The patch introduces a new function papr_pdsm_fuel_gauge() that is called from papr_pdsm_health(). If fetching NVDIMM performance stats is supported then 'papr_pdsm_fuel_gauge()' allocated an output buffer large enough to hold the performance stat and passes it to drc_pmem_query_stats() that issues the HCALL to PHYP. The return value of the stat is then populated in the 'struct nd_papr_pdsm_health.dimm_fuel_gauge' field with extension flag 'PDSM_DIMM_HEALTH_RUN_GAUGE_VALID' set in 'struct nd_papr_pdsm_health.extension_flags' Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200731064153.182203-3-vaibhav@linux.ibm.com
2020-07-31powerpc/papr_scm: Fetch nvdimm performance stats from PHYPVaibhav Jain
Update papr_scm.c to query dimm performance statistics from PHYP via H_SCM_PERFORMANCE_STATS hcall and export them to user-space as PAPR specific NVDIMM attribute 'perf_stats' in sysfs. The patch also provide a sysfs ABI documentation for the stats being reported and their meanings. During NVDIMM probe time in papr_scm_nvdimm_init() a special variant of H_SCM_PERFORMANCE_STATS hcall is issued to check if collection of performance statistics is supported or not. If successful then a PHYP returns a maximum possible buffer length needed to read all performance stats. This returned value is stored in a per-nvdimm attribute 'stat_buffer_len'. The layout of request buffer for reading NVDIMM performance stats from PHYP is defined in 'struct papr_scm_perf_stats' and 'struct papr_scm_perf_stat'. These structs are used in newly introduced drc_pmem_query_stats() that issues the H_SCM_PERFORMANCE_STATS hcall. The sysfs access function perf_stats_show() uses value 'stat_buffer_len' to allocate a buffer large enough to hold all possible NVDIMM performance stats and passes it to drc_pmem_query_stats() to populate. Finally statistics reported in the buffer are formatted into the sysfs access function output buffer. Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200731064153.182203-2-vaibhav@linux.ibm.com
2020-07-31staging: android: ashmem: Fix lockdep warning for write operationSuren Baghdasaryan
syzbot report [1] describes a deadlock when write operation against an ashmem fd executed at the time when ashmem is shrinking its cache results in the following lock sequence: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(fs_reclaim); lock(&sb->s_type->i_mutex_key#13); lock(fs_reclaim); lock(&sb->s_type->i_mutex_key#13); kswapd takes fs_reclaim and then inode_lock while generic_perform_write takes inode_lock and then fs_reclaim. However ashmem does not support writing into backing shmem with a write syscall. The only way to change its content is to mmap it and operate on mapped memory. Therefore the race that lockdep is warning about is not valid. Resolve this by introducing a separate lockdep class for the backing shmem inodes. [1]: https://lkml.kernel.org/lkml/0000000000000b5f9d059aa2037f@google.com/ Reported-by: syzbot+7a0d9d0b26efefe61780@syzkaller.appspotmail.com Signed-off-by: Suren Baghdasaryan <surenb@google.com> Cc: stable <stable@vger.kernel.org> Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org> Link: https://lore.kernel.org/r/20200730192632.3088194-1-surenb@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-31drivers: most: add USB adapter driverChristian Gromm
This patch adds the USB driver source file most_usb.c and modifies the Makefile and Kconfig accordingly. Signed-off-by: Christian Gromm <christian.gromm@microchip.com> Link: https://lore.kernel.org/r/1596198058-26541-1-git-send-email-christian.gromm@microchip.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-31power: supply: wilco_ec: Add long life charging modeCrag Wang
This is a long life mode set in the factory for extended warranty battery, the power charging rate is customized so that battery at work last longer. Presently switching to a different battery charging mode is through EC PID 0x0710 to configure the battery firmware, this operation will be blocked by EC with failure code 0x01 when PLL mode is already in use. Signed-off-by: Crag Wang <crag.wang@dell.com> Reviewed-by: Mario Limonciello <mario.limonciello@dell.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-07-31perf bench: Add benchmark of find_next_bitIan Rogers
for_each_set_bit, or similar functions like for_each_cpu, may be hot within the kernel. If many bits were set then one could imagine on Intel a "bt" instruction with every bit may be faster than the function call and word length find_next_bit logic. Add a benchmark to measure this. This benchmark on AMD rome and Intel skylakex shows "bt" is not a good option except for very small bitmaps. Committer testing: # perf bench Usage: perf bench [<common options>] <collection> <benchmark> [<options>] # List of all available benchmark collections: sched: Scheduler and IPC benchmarks syscall: System call benchmarks mem: Memory access benchmarks numa: NUMA scheduling and MM benchmarks futex: Futex stressing benchmarks epoll: Epoll stressing benchmarks internals: Perf-internals benchmarks all: All benchmarks # perf bench mem # List of available benchmarks for collection 'mem': memcpy: Benchmark for memcpy() functions memset: Benchmark for memset() functions find_bit: Benchmark for find_bit() functions all: Run all memory access benchmarks # perf bench mem find_bit # Running 'mem/find_bit' benchmark: 100000 operations 1 bits set of 1 bits Average for_each_set_bit took: 730.200 usec (+- 6.468 usec) Average test_bit loop took: 366.200 usec (+- 4.652 usec) 100000 operations 1 bits set of 2 bits Average for_each_set_bit took: 781.000 usec (+- 24.247 usec) Average test_bit loop took: 550.200 usec (+- 4.152 usec) 100000 operations 2 bits set of 2 bits Average for_each_set_bit took: 1113.400 usec (+- 112.340 usec) Average test_bit loop took: 1098.500 usec (+- 182.834 usec) 100000 operations 1 bits set of 4 bits Average for_each_set_bit took: 843.800 usec (+- 8.772 usec) Average test_bit loop took: 948.800 usec (+- 10.278 usec) 100000 operations 2 bits set of 4 bits Average for_each_set_bit took: 1185.800 usec (+- 114.345 usec) Average test_bit loop took: 1473.200 usec (+- 175.498 usec) 100000 operations 4 bits set of 4 bits Average for_each_set_bit took: 1769.667 usec (+- 233.177 usec) Average test_bit loop took: 1864.933 usec (+- 187.470 usec) 100000 operations 1 bits set of 8 bits Average for_each_set_bit took: 898.000 usec (+- 21.755 usec) Average test_bit loop took: 1768.400 usec (+- 23.672 usec) 100000 operations 2 bits set of 8 bits Average for_each_set_bit took: 1244.900 usec (+- 116.396 usec) Average test_bit loop took: 2201.800 usec (+- 145.398 usec) 100000 operations 4 bits set of 8 bits Average for_each_set_bit took: 1822.533 usec (+- 231.554 usec) Average test_bit loop took: 2569.467 usec (+- 168.453 usec) 100000 operations 8 bits set of 8 bits Average for_each_set_bit took: 2845.100 usec (+- 441.365 usec) Average test_bit loop took: 3023.300 usec (+- 219.575 usec) 100000 operations 1 bits set of 16 bits Average for_each_set_bit took: 923.400 usec (+- 17.560 usec) Average test_bit loop took: 3240.000 usec (+- 16.492 usec) 100000 operations 2 bits set of 16 bits Average for_each_set_bit took: 1264.300 usec (+- 114.034 usec) Average test_bit loop took: 3714.400 usec (+- 158.898 usec) 100000 operations 4 bits set of 16 bits Average for_each_set_bit took: 1817.867 usec (+- 222.199 usec) Average test_bit loop took: 4015.333 usec (+- 154.162 usec) 100000 operations 8 bits set of 16 bits Average for_each_set_bit took: 2826.350 usec (+- 433.457 usec) Average test_bit loop took: 4460.350 usec (+- 210.762 usec) 100000 operations 16 bits set of 16 bits Average for_each_set_bit took: 4615.600 usec (+- 809.350 usec) Average test_bit loop took: 5129.960 usec (+- 320.821 usec) 100000 operations 1 bits set of 32 bits Average for_each_set_bit took: 904.400 usec (+- 14.250 usec) Average test_bit loop took: 6194.000 usec (+- 29.254 usec) 100000 operations 2 bits set of 32 bits Average for_each_set_bit took: 1252.700 usec (+- 116.432 usec) Average test_bit loop took: 6652.400 usec (+- 154.352 usec) 100000 operations 4 bits set of 32 bits Average for_each_set_bit took: 1824.200 usec (+- 229.133 usec) Average test_bit loop took: 6961.733 usec (+- 154.682 usec) 100000 operations 8 bits set of 32 bits Average for_each_set_bit took: 2823.950 usec (+- 432.296 usec) Average test_bit loop took: 7351.900 usec (+- 193.626 usec) 100000 operations 16 bits set of 32 bits Average for_each_set_bit took: 4552.560 usec (+- 785.141 usec) Average test_bit loop took: 7998.360 usec (+- 305.629 usec) 100000 operations 32 bits set of 32 bits Average for_each_set_bit took: 7557.067 usec (+- 1407.702 usec) Average test_bit loop took: 9072.400 usec (+- 513.209 usec) 100000 operations 1 bits set of 64 bits Average for_each_set_bit took: 896.800 usec (+- 14.389 usec) Average test_bit loop took: 11927.200 usec (+- 68.862 usec) 100000 operations 2 bits set of 64 bits Average for_each_set_bit took: 1230.400 usec (+- 111.731 usec) Average test_bit loop took: 12478.600 usec (+- 189.382 usec) 100000 operations 4 bits set of 64 bits Average for_each_set_bit took: 1844.733 usec (+- 244.826 usec) Average test_bit loop took: 12911.467 usec (+- 206.246 usec) 100000 operations 8 bits set of 64 bits Average for_each_set_bit took: 2779.300 usec (+- 413.612 usec) Average test_bit loop took: 13372.650 usec (+- 239.623 usec) 100000 operations 16 bits set of 64 bits Average for_each_set_bit took: 4423.920 usec (+- 748.240 usec) Average test_bit loop took: 13995.800 usec (+- 318.427 usec) 100000 operations 32 bits set of 64 bits Average for_each_set_bit took: 7580.600 usec (+- 1462.407 usec) Average test_bit loop took: 15063.067 usec (+- 516.477 usec) 100000 operations 64 bits set of 64 bits Average for_each_set_bit took: 13391.514 usec (+- 2765.371 usec) Average test_bit loop took: 16974.914 usec (+- 916.936 usec) 100000 operations 1 bits set of 128 bits Average for_each_set_bit took: 1153.800 usec (+- 124.245 usec) Average test_bit loop took: 26959.000 usec (+- 714.047 usec) 100000 operations 2 bits set of 128 bits Average for_each_set_bit took: 1445.200 usec (+- 113.587 usec) Average test_bit loop took: 25798.800 usec (+- 512.908 usec) 100000 operations 4 bits set of 128 bits Average for_each_set_bit took: 1990.933 usec (+- 219.362 usec) Average test_bit loop took: 25589.400 usec (+- 348.288 usec) 100000 operations 8 bits set of 128 bits Average for_each_set_bit took: 2963.000 usec (+- 419.487 usec) Average test_bit loop took: 25690.050 usec (+- 262.025 usec) 100000 operations 16 bits set of 128 bits Average for_each_set_bit took: 4585.200 usec (+- 741.734 usec) Average test_bit loop took: 26125.040 usec (+- 274.127 usec) 100000 operations 32 bits set of 128 bits Average for_each_set_bit took: 7626.200 usec (+- 1404.950 usec) Average test_bit loop took: 27038.867 usec (+- 442.554 usec) 100000 operations 64 bits set of 128 bits Average for_each_set_bit took: 13343.371 usec (+- 2686.460 usec) Average test_bit loop took: 28936.543 usec (+- 883.257 usec) 100000 operations 128 bits set of 128 bits Average for_each_set_bit took: 23442.950 usec (+- 4880.541 usec) Average test_bit loop took: 32484.125 usec (+- 1691.931 usec) 100000 operations 1 bits set of 256 bits Average for_each_set_bit took: 1183.000 usec (+- 32.073 usec) Average test_bit loop took: 50114.600 usec (+- 198.880 usec) 100000 operations 2 bits set of 256 bits Average for_each_set_bit took: 1550.000 usec (+- 124.550 usec) Average test_bit loop took: 50334.200 usec (+- 128.425 usec) 100000 operations 4 bits set of 256 bits Average for_each_set_bit took: 2164.333 usec (+- 246.359 usec) Average test_bit loop took: 49959.867 usec (+- 188.035 usec) 100000 operations 8 bits set of 256 bits Average for_each_set_bit took: 3211.200 usec (+- 454.829 usec) Average test_bit loop took: 50140.850 usec (+- 176.046 usec) 100000 operations 16 bits set of 256 bits Average for_each_set_bit took: 5181.640 usec (+- 882.726 usec) Average test_bit loop took: 51003.160 usec (+- 419.601 usec) 100000 operations 32 bits set of 256 bits Average for_each_set_bit took: 8369.333 usec (+- 1513.150 usec) Average test_bit loop took: 52096.700 usec (+- 573.022 usec) 100000 operations 64 bits set of 256 bits Average for_each_set_bit took: 13866.857 usec (+- 2649.393 usec) Average test_bit loop took: 53989.600 usec (+- 938.808 usec) 100000 operations 128 bits set of 256 bits Average for_each_set_bit took: 23588.350 usec (+- 4724.222 usec) Average test_bit loop took: 57300.625 usec (+- 1625.962 usec) 100000 operations 256 bits set of 256 bits Average for_each_set_bit took: 42752.200 usec (+- 9202.084 usec) Average test_bit loop took: 64426.933 usec (+- 3402.326 usec) 100000 operations 1 bits set of 512 bits Average for_each_set_bit took: 1632.000 usec (+- 229.954 usec) Average test_bit loop took: 98090.000 usec (+- 1120.435 usec) 100000 operations 2 bits set of 512 bits Average for_each_set_bit took: 1937.700 usec (+- 148.902 usec) Average test_bit loop took: 100364.100 usec (+- 1433.219 usec) 100000 operations 4 bits set of 512 bits Average for_each_set_bit took: 2528.000 usec (+- 243.654 usec) Average test_bit loop took: 99932.067 usec (+- 955.868 usec) 100000 operations 8 bits set of 512 bits Average for_each_set_bit took: 3734.100 usec (+- 512.359 usec) Average test_bit loop took: 98944.750 usec (+- 812.070 usec) 100000 operations 16 bits set of 512 bits Average for_each_set_bit took: 5551.400 usec (+- 846.605 usec) Average test_bit loop took: 98691.600 usec (+- 654.753 usec) 100000 operations 32 bits set of 512 bits Average for_each_set_bit took: 8594.500 usec (+- 1446.072 usec) Average test_bit loop took: 99176.867 usec (+- 579.990 usec) 100000 operations 64 bits set of 512 bits Average for_each_set_bit took: 13840.743 usec (+- 2527.055 usec) Average test_bit loop took: 100758.743 usec (+- 833.865 usec) 100000 operations 128 bits set of 512 bits Average for_each_set_bit took: 23185.925 usec (+- 4532.910 usec) Average test_bit loop took: 103786.700 usec (+- 1475.276 usec) 100000 operations 256 bits set of 512 bits Average for_each_set_bit took: 40322.400 usec (+- 8341.802 usec) Average test_bit loop took: 109433.378 usec (+- 2742.615 usec) 100000 operations 512 bits set of 512 bits Average for_each_set_bit took: 71804.540 usec (+- 15436.546 usec) Average test_bit loop took: 120255.440 usec (+- 5252.777 usec) 100000 operations 1 bits set of 1024 bits Average for_each_set_bit took: 1859.600 usec (+- 27.969 usec) Average test_bit loop took: 187676.000 usec (+- 1337.770 usec) 100000 operations 2 bits set of 1024 bits Average for_each_set_bit took: 2273.600 usec (+- 139.420 usec) Average test_bit loop took: 188176.000 usec (+- 684.357 usec) 100000 operations 4 bits set of 1024 bits Average for_each_set_bit took: 2940.400 usec (+- 268.213 usec) Average test_bit loop took: 189172.600 usec (+- 593.295 usec) 100000 operations 8 bits set of 1024 bits Average for_each_set_bit took: 4224.200 usec (+- 547.933 usec) Average test_bit loop took: 190257.250 usec (+- 621.021 usec) 100000 operations 16 bits set of 1024 bits Average for_each_set_bit took: 6090.560 usec (+- 877.975 usec) Average test_bit loop took: 190143.880 usec (+- 503.753 usec) 100000 operations 32 bits set of 1024 bits Average for_each_set_bit took: 9178.800 usec (+- 1475.136 usec) Average test_bit loop took: 190757.100 usec (+- 494.757 usec) 100000 operations 64 bits set of 1024 bits Average for_each_set_bit took: 14441.457 usec (+- 2545.497 usec) Average test_bit loop took: 192299.486 usec (+- 795.251 usec) 100000 operations 128 bits set of 1024 bits Average for_each_set_bit took: 23623.825 usec (+- 4481.182 usec) Average test_bit loop took: 194885.550 usec (+- 1300.817 usec) 100000 operations 256 bits set of 1024 bits Average for_each_set_bit took: 40194.956 usec (+- 8109.056 usec) Average test_bit loop took: 200259.311 usec (+- 2566.085 usec) 100000 operations 512 bits set of 1024 bits Average for_each_set_bit took: 70983.560 usec (+- 15074.982 usec) Average test_bit loop took: 210527.460 usec (+- 4968.980 usec) 100000 operations 1024 bits set of 1024 bits Average for_each_set_bit took: 136530.345 usec (+- 31584.400 usec) Average test_bit loop took: 233329.691 usec (+- 10814.036 usec) 100000 operations 1 bits set of 2048 bits Average for_each_set_bit took: 3077.600 usec (+- 76.376 usec) Average test_bit loop took: 402154.400 usec (+- 518.571 usec) 100000 operations 2 bits set of 2048 bits Average for_each_set_bit took: 3508.600 usec (+- 148.350 usec) Average test_bit loop took: 403814.500 usec (+- 1133.027 usec) 100000 operations 4 bits set of 2048 bits Average for_each_set_bit took: 4219.333 usec (+- 285.844 usec) Average test_bit loop took: 404312.533 usec (+- 985.751 usec) 100000 operations 8 bits set of 2048 bits Average for_each_set_bit took: 5670.550 usec (+- 615.238 usec) Average test_bit loop took: 405321.800 usec (+- 1038.487 usec) 100000 operations 16 bits set of 2048 bits Average for_each_set_bit took: 7785.080 usec (+- 992.522 usec) Average test_bit loop took: 406746.160 usec (+- 1015.478 usec) 100000 operations 32 bits set of 2048 bits Average for_each_set_bit took: 11163.800 usec (+- 1627.320 usec) Average test_bit loop took: 406124.267 usec (+- 898.785 usec) 100000 operations 64 bits set of 2048 bits Average for_each_set_bit took: 16964.629 usec (+- 2806.130 usec) Average test_bit loop took: 406618.514 usec (+- 798.356 usec) 100000 operations 128 bits set of 2048 bits Average for_each_set_bit took: 27219.625 usec (+- 4988.458 usec) Average test_bit loop took: 410149.325 usec (+- 1705.641 usec) 100000 operations 256 bits set of 2048 bits Average for_each_set_bit took: 45138.578 usec (+- 8831.021 usec) Average test_bit loop took: 415462.467 usec (+- 2725.418 usec) 100000 operations 512 bits set of 2048 bits Average for_each_set_bit took: 77450.540 usec (+- 15962.238 usec) Average test_bit loop took: 426089.180 usec (+- 5171.788 usec) 100000 operations 1024 bits set of 2048 bits Average for_each_set_bit took: 138023.636 usec (+- 29826.959 usec) Average test_bit loop took: 446346.636 usec (+- 9904.417 usec) 100000 operations 2048 bits set of 2048 bits Average for_each_set_bit took: 251072.600 usec (+- 55947.692 usec) Average test_bit loop took: 484855.983 usec (+- 18970.431 usec) # Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lore.kernel.org/lkml/20200729220034.1337168-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-31libtraceevent: Fix build with binutils 2.35Ben Hutchings
In binutils 2.35, 'nm -D' changed to show symbol versions along with symbol names, with the usual @@ separator. When generating libtraceevent-dynamic-list we need just the names, so strip off the version suffix if present. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Reviewed-by: Steven Rostedt <rostedt@goodmis.org> Cc: linux-trace-devel@vger.kernel.org Cc: stable@vger.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-31perf tools: Fix record failure when mixed with ARM SPE eventWei Li
When recording with cache-misses and arm_spe_x event, I found that it will just fail without showing any error info if i put cache-misses after 'arm_spe_x' event. [root@localhost 0620]# perf record -e cache-misses \ -e arm_spe_0/ts_enable=1,pct_enable=1,pa_enable=1,load_filter=1,jitter=1,store_filter=1,min_latency=0/ sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.067 MB perf.data ] [root@localhost 0620]# [root@localhost 0620]# perf record -e arm_spe_0/ts_enable=1,pct_enable=1,pa_enable=1,load_filter=1,jitter=1,store_filter=1,min_latency=0/ \ -e cache-misses sleep 1 [root@localhost 0620]# The current code can only work if the only event to be traced is an 'arm_spe_x', or if it is the last event to be specified. Otherwise the last event type will be checked against all the arm_spe_pmus[i]->types, none will match and an out of bound 'i' index will be used in arm_spe_recording_init(). We don't support concurrent multiple arm_spe_x events currently, that is checked in arm_spe_recording_options(), and it will show the relevant info. So add the check and record of the first found 'arm_spe_pmu' to fix this issue here. Fixes: ffd3d18c20b8 ("perf tools: Add ARM Statistical Profiling Extensions (SPE) support") Signed-off-by: Wei Li <liwei391@huawei.com> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Tested-by-by: Leo Yan <leo.yan@linaro.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Hanjun Guo <guohanjun@huawei.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kim Phillips <kim.phillips@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: linux-arm-kernel@lists.infradead.org Link: http://lore.kernel.org/lkml/20200724071111.35593-2-liwei391@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-31tools build feature: Use CC and CXX from parentThomas Hebb
commit c8c188679ccf ("tools build: Use the same CC for feature detection and actual build") changed these assignments from unconditional (:=) to conditional (?=) so that they wouldn't clobber values from the environment. However, conditional assignment does not work properly for variables that Make implicitly sets, among which are CC and CXX. To quote tools/scripts/Makefile.include, which handles this properly: # Makefiles suck: This macro sets a default value of $(2) for the # variable named by $(1), unless the variable has been set by # environment or command line. This is necessary for CC and AR # because make sets default values, so the simpler ?= approach # won't work as expected. In other words, the conditional assignments will not run even if the variables are not overridden in the environment; Make will set CC to "cc" and CXX to "g++" when it starts[1], meaning the variables are not empty by the time the conditional assignments are evaluated. This breaks cross-compilation when CROSS_COMPILE is set but CC isn't, since "cc" gets used for feature detection instead of the cross compiler (and likewise for CXX). To fix the issue, just pass down the values of CC and CXX computed by the parent Makefile, which gets included by the Makefile that actually builds whatever we're detecting features for and so is guaranteed to have good values. This is a better solution anyway, since it means we aren't trying to replicate the logic of the parent build system and so don't risk it getting out of sync. Leave PKG_CONFIG alone, since 1) there's no common logic to compute it in Makefile.include, and 2) it's not an implicit variable, so conditional assignment works properly. [1] https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html Fixes: c8c188679ccf ("tools build: Use the same CC for feature detection and actual build") Signed-off-by: Thomas Hebb <tommyhebb@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Carrillo-Cisneros <davidcc@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Igor Lubashev <ilubashe@akamai.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Quentin Monnet <quentin@isovalent.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Cc: thomas hebb <tommyhebb@gmail.com> Link: http://lore.kernel.org/lkml/0a6e69d1736b0fa231a648f50b0cce5d8a6734ef.1595822871.git.tommyhebb@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-31perf tests: Fix test 68 zstd compression for s390Thomas Richter
Commit 5aa98879efe7 ("s390/cpum_sf: prohibit callchain data collection") prohibits call graph sampling for hardware events on s390. The information recorded is out of context and does not match. On s390 this commit now breaks test case 68 Zstd perf.data compression/decompression. Therefore omit call graph sampling on s390 in this test. Output before: [root@t35lp46 perf]# ./perf test -Fv 68 68: Zstd perf.data compression/decompression : --- start --- Collecting compressed record file: Error: cycles: PMU Hardware doesn't support sampling/overflow-interrupts. Try 'perf stat' ---- end ---- Zstd perf.data compression/decompression: FAILED! [root@t35lp46 perf]# Output after: [root@t35lp46 perf]# ./perf test -Fv 68 68: Zstd perf.data compression/decompression : --- start --- Collecting compressed record file: 500+0 records in 500+0 records out 256000 bytes (256 kB, 250 KiB) copied, 0.00615638 s, 41.6 MB/s [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.004 MB /tmp/perf.data.X3M, compressed (original 0.002 MB, ratio is 3.609) ] Checking compressed events stats: # compressed : Zstd, level = 1, ratio = 4 COMPRESSED events: 1 2ELIFREPh---- end ---- Zstd perf.data compression/decompression: Ok [root@t35lp46 perf]# Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Reviewed-by: Sumanth Korikkar <sumanthk@linux.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Link: http://lore.kernel.org/lkml/20200729135314.91281-1-tmricht@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-31tools lib traceevent: Fix memory leak in process_dynamic_array_lenPhilippe Duplessis-Guindon
I compiled with AddressSanitizer and I had these memory leaks while I was using the tep_parse_format function: Direct leak of 28 byte(s) in 4 object(s) allocated from: #0 0x7fb07db49ffe in __interceptor_realloc (/lib/x86_64-linux-gnu/libasan.so.5+0x10dffe) #1 0x7fb07a724228 in extend_token /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:985 #2 0x7fb07a724c21 in __read_token /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:1140 #3 0x7fb07a724f78 in read_token /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:1206 #4 0x7fb07a725191 in __read_expect_type /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:1291 #5 0x7fb07a7251df in read_expect_type /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:1299 #6 0x7fb07a72e6c8 in process_dynamic_array_len /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:2849 #7 0x7fb07a7304b8 in process_function /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:3161 #8 0x7fb07a730900 in process_arg_token /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:3207 #9 0x7fb07a727c0b in process_arg /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:1786 #10 0x7fb07a731080 in event_read_print_args /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:3285 #11 0x7fb07a731722 in event_read_print /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:3369 #12 0x7fb07a740054 in __tep_parse_format /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:6335 #13 0x7fb07a74047a in __parse_event /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:6389 #14 0x7fb07a740536 in tep_parse_format /home/pduplessis/repo/linux/tools/lib/traceevent/event-parse.c:6431 #15 0x7fb07a785acf in parse_event ../../../src/fs-src/fs.c:251 #16 0x7fb07a785ccd in parse_systems ../../../src/fs-src/fs.c:284 #17 0x7fb07a786fb3 in read_metadata ../../../src/fs-src/fs.c:593 #18 0x7fb07a78760e in ftrace_fs_source_init ../../../src/fs-src/fs.c:727 #19 0x7fb07d90c19c in add_component_with_init_method_data ../../../../src/lib/graph/graph.c:1048 #20 0x7fb07d90c87b in add_source_component_with_initialize_method_data ../../../../src/lib/graph/graph.c:1127 #21 0x7fb07d90c92a in bt_graph_add_source_component ../../../../src/lib/graph/graph.c:1152 #22 0x55db11aa632e in cmd_run_ctx_create_components_from_config_components ../../../src/cli/babeltrace2.c:2252 #23 0x55db11aa6fda in cmd_run_ctx_create_components ../../../src/cli/babeltrace2.c:2347 #24 0x55db11aa780c in cmd_run ../../../src/cli/babeltrace2.c:2461 #25 0x55db11aa8a7d in main ../../../src/cli/babeltrace2.c:2673 #26 0x7fb07d5460b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b2) The token variable in the process_dynamic_array_len function is allocated in the read_expect_type function, but is not freed before calling the read_token function. Free the token variable before calling read_token in order to plug the leak. Signed-off-by: Philippe Duplessis-Guindon <pduplessis@efficios.com> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Link: https://lore.kernel.org/linux-trace-devel/20200730150236.5392-1-pduplessis@efficios.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-31cpuidle: ACPI: fix 'return' with no value build warningNeal Liu
Add return value to fix return-type build warning introduced by commit efe9711214e6 ("cpuidle: change enter_s2idle() prototype"). Fixes: efe9711214e6 ("cpuidle: change enter_s2idle() prototype") Signed-off-by: Neal Liu <neal.liu@mediatek.com> [ rjw: Subject & changelog edits, make acpi_idle_enter_s2idle() return 0 in all cases ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-07-31Merge branch 'linus' into locking/core, to resolve conflictIngo Molnar
Conflicts: arch/arm/include/asm/percpu.h As Stephen Rothwell noted, there's a conflict between this commit in locking/core: a21ee6055c30 ("lockdep: Change hardirq{s_enabled,_context} to per-cpu variables") and this fresh upstream commit: aa54ea903abb ("ARM: percpu.h: fix build error") a21ee6055c30 is a simpler solution to the dependency problem and doesn't further increase header hell - so this conflict resolution effectively reverts aa54ea903abb and uses the a21ee6055c30 solution. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-07-31Merge branch 'WIP.x86/entry' into x86/entry, to merge the latest generic ↵Ingo Molnar
code and resolve conflicts Pick up and resolve the NMI entry code changes from the locking tree, and also pick up the latest two fixes from tip:core/entry. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-07-31kcsan: Improve IRQ state trace reportingMarco Elver
To improve the general usefulness of the IRQ state trace events with KCSAN enabled, save and restore the trace information when entering and exiting the KCSAN runtime as well as when generating a KCSAN report. Without this, reporting the IRQ trace events (whether via a KCSAN report or outside of KCSAN via a lockdep report) is rather useless due to continuously being touched by KCSAN. This is because if KCSAN is enabled, every instrumented memory access causes changes to IRQ trace events (either by KCSAN disabling/enabling interrupts or taking report_lock when generating a report). Before "lockdep: Prepare for NMI IRQ state tracking", KCSAN avoided touching the IRQ trace events via raw_local_irq_save/restore() and lockdep_off/on(). Fixes: 248591f5d257 ("kcsan: Make KCSAN compatible with new IRQ state tracking") Signed-off-by: Marco Elver <elver@google.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20200729110916.3920464-2-elver@google.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-07-31lockdep: Refactor IRQ trace events fields into structMarco Elver
Refactor the IRQ trace events fields, used for printing information about the IRQ trace events, into a separate struct 'irqtrace_events'. This improves readability by separating the information only used in reporting, as well as enables (simplified) storing/restoring of irqtrace_events snapshots. No functional change intended. Signed-off-by: Marco Elver <elver@google.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20200729110916.3920464-1-elver@google.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-07-31Documentation: dontdiff: Add zstd compressed filesNick Terrell
For now, that's arch/x86/boot/compressed/vmlinux.bin.zst but probably more will come, thus let's be consistent with all other compressors. Signed-off-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20200730190841.2071656-9-nickrterrell@gmail.com
2020-07-31.gitignore: Add ZSTD-compressed filesAdam Borowski
For now, that's arch/x86/boot/compressed/vmlinux.bin.zst but probably more will come, thus let's be consistent with all other compressors. Signed-off-by: Adam Borowski <kilobyte@angband.pl> Signed-off-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20200730190841.2071656-8-nickrterrell@gmail.com
2020-07-31x86: Add support for ZSTD compressed kernelNick Terrell
- Add support for zstd compressed kernel - Define __DISABLE_EXPORTS in Makefile - Remove __DISABLE_EXPORTS definition from kaslr.c - Bump the heap size for zstd. - Update the documentation. Integrates the ZSTD decompression code to the x86 pre-boot code. Zstandard requires slightly more memory during the kernel decompression on x86 (192 KB vs 64 KB), and the memory usage is independent of the window size. __DISABLE_EXPORTS is now defined in the Makefile, which covers both the existing use in kaslr.c, and the use needed by the zstd decompressor in misc.c. This patch has been boot tested with both a zstd and gzip compressed kernel on i386 and x86_64 using buildroot and QEMU. Additionally, this has been tested in production on x86_64 devices. We saw a 2 second boot time reduction by switching kernel compression from xz to zstd. Signed-off-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20200730190841.2071656-7-nickrterrell@gmail.com
2020-07-31x86: Bump ZO_z_extra_bytes margin for zstdNick Terrell
Bump the ZO_z_extra_bytes margin for zstd. Zstd needs 3 bytes per 128 KB, and has a 22 byte fixed overhead. Zstd needs to maintain 128 KB of space at all times, since that is the maximum block size. See the comments regarding in-place decompression added in lib/decompress_unzstd.c for details. The existing code is written so that all the compression algorithms use the same ZO_z_extra_bytes. It is taken to be the maximum of the growth rate plus the maximum fixed overhead. The comments just above this diff state that: Signed-off-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20200730190841.2071656-6-nickrterrell@gmail.com
2020-07-31usr: Add support for zstd compressed initramfsNick Terrell
- Add support for a zstd compressed initramfs. - Add compression for compressing built-in initramfs with zstd. I have tested this patch by boot testing with buildroot and QEMU. Specifically, I booted the kernel with both a zstd and gzip compressed initramfs, both built into the kernel and separate. I ensured that the correct compression algorithm was used. I tested on arm, aarch64, i386, and x86_64. This patch has been tested in production on aarch64 and x86_64 devices. Additionally, I have performance measurements from internal use in production. On an aarch64 device we saw 19 second boot time improvement from switching from lzma to zstd (27 seconds to 8 seconds). On an x86_64 device we saw a 9 second boot time reduction from switching from xz to zstd. Signed-off-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20200730190841.2071656-5-nickrterrell@gmail.com
2020-07-31init: Add support for zstd compressed kernelNick Terrell
- Add the zstd and zstd22 cmds to scripts/Makefile.lib - Add the HAVE_KERNEL_ZSTD and KERNEL_ZSTD options Architecture specific support is still needed for decompression. Signed-off-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20200730190841.2071656-4-nickrterrell@gmail.com
2020-07-31lib: Add zstd support to decompressNick Terrell
- Add unzstd() and the zstd decompress interface. - Add zstd support to decompress_method(). The decompress_method() and unzstd() functions are used to decompress the initramfs and the initrd. The __decompress() function is used in the preboot environment to decompress a zstd compressed kernel. The zstd decompression function allows the input and output buffers to overlap because that is used by x86 kernel decompression. Signed-off-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20200730190841.2071656-3-nickrterrell@gmail.com
2020-07-31lib: Prepare zstd for preboot environment, improve performanceNick Terrell
These changes are necessary to get the build to work in the preboot environment, and to get reasonable performance: - Remove a double definition of the CHECK_F macro when the zstd library is amalgamated. - Switch ZSTD_copy8() to __builtin_memcpy(), because in the preboot environment on x86 gcc can't inline `memcpy()` otherwise. - Limit the gcc hack in ZSTD_wildcopy() to the broken gcc version. See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81388. ZSTD_copy8() and ZSTD_wildcopy() are in the core of the zstd hot loop. So outlining these calls to memcpy(), and having an extra branch are very detrimental to performance. Signed-off-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20200730190841.2071656-2-nickrterrell@gmail.com
2020-07-31ARM: mstar: Correct the compatible string for pmsleepDaniel Palmer
The compatible string for the pmsleep region has changed. Update the MStar/Sigmastar v7 base dtsi with the new string. Link: https://lore.kernel.org/r/20200729150748.1945589-4-daniel@0x0f.com Signed-off-by: Daniel Palmer <daniel@0x0f.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-31dt-bindings: arm: mstar: remove the binding description for mstar,pmsleepDaniel Palmer
Remove the unneeded binding description. Compatible string is in mfd/syscon.yaml now. Link: https://lore.kernel.org/r/20200729150748.1945589-3-daniel@0x0f.com Signed-off-by: Daniel Palmer <daniel@0x0f.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-31dt-bindings: mfd: syscon: add compatible string for mstar,msc313-pmsleepDaniel Palmer
Add a compatible string for the pmsleep register region in the MStar MSC313 SoC. Link: https://lore.kernel.org/r/20200729150748.1945589-2-daniel@0x0f.com Signed-off-by: Daniel Palmer <daniel@0x0f.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-31Merge tag 'qcom-arm64-for-5.9-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/dt Qualcomm ARM64 DT additional updates for 5.9 For SC7180 this adds the necessary properties for blowing fuses in qfprom, Coresight fixes, GPU interconnect votes and specifies max speed for USB controller. SM8150 and SM8250 gains Adreno SMMU, the graphics management unit and the GPU nodes, to enable headless GPU usage. SDM845 gains tracing support for deep idle, GPU bus bandwidth scaling and DB845c gains the LT9611 HDMI bridge wired up. MSM8994 gains SMD RPM and SCM support and a new dts for the Sony Xperia Z5. MSM8992 is refactored and modernized and gets support for SCM, SPMI, BLSP2 UART and I2C nodes, PMU, RPM clock controller, PSCI and proper CPU definitions. Support for the Xiaomi Libra and Microsoft Lumia 950 are added. * tag 'qcom-arm64-for-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (31 commits) arm64: dts: qcom: Add Microsoft Lumia 950 (Talkman) device tree arm64: dts: qcom: Add Xiaomi Libra (Mi 4C) device tree arm64: dts: qcom: msm8992: Add RPMCC node arm64: dts: qcom: msm8992: Add PSCI support. arm64: dts: qcom: msm8992: Add PMU node arm64: dts: qcom: msm8992: Add BLSP2_UART2 and I2C nodes arm64: dts: qcom: msm8992: Add SPMI PMIC arbiter device arm64: dts: qcom: msm8992: Add a SCM node arm64: dts: qcom: msm8992: Add a proper CPU map arm64: dts: qcom: bullhead: Move UART pinctrl to SoC arm64: dts: qcom: bullhead: Add qcom,msm-id arm64: dts: qcom: msm8992: Fix SDHCI1 arm64: dts: qcom: msm8992: Modernize the DTS style arm64: dts: qcom: Add support for Sony Xperia Z5 (SoMC Sumire-RoW) arm64: dts: qcom: Move msm8994-smd-rpm contents to lg-bullhead. arm64: dts: qcom: msm8994: Add support for SMD RPM arm64: dts: qcom: msm8992: Add a label to rpm-requests arm64: dts: qcom: msm8994: Add SCM node arm64: dts: qcom: sdm845-db845c: Add hdmi bridge nodes arm64: dts: qcom: add sm8250 GPU nodes ... Link: https://lore.kernel.org/r/20200730052003.649940-1-bjorn.andersson@linaro.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-31Merge tag 'amlogic-dt64-4' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/dt arm64: dts: Amlogic updates for v5.9 (round 4) - odroid-n2: add audio output * tag 'amlogic-dt64-4' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic: arm64: dts: meson: odroid-n2: add jack audio output support arm64: dts: meson: odroid-n2: enable audio loopback Link: https://lore.kernel.org/r/7ho8nx2b0t.fsf@baylibre.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-31Merge tag 'qcom-drivers-for-5.9-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers Qualcomm driver additional updates for 5.9 This fixes a potential race condition with remoteprocs by not sending acknowledgements until after registered drivers has processed the event. It adds IPQ6018 support to the SMD RPM driver, fixes kerneldoc in the same and converts the related DT binding to YAML. Finally it fixes a compilation warning in the geni serial engine driver when compiled without CONFIG_SERIAL_EARLYCON. * tag 'qcom-drivers-for-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: soc: qcom: geni: Fix unused label warning soc: qcom: smd-rpm: Fix kerneldoc soc: qcom: pdr: Reorder the PD state indication ack dt-bindings: soc: qcom: smd-rpm: Convert binding to YAML schema soc: qcom: smd-rpm: Add IPQ6018 compatible dt-bindings: soc: qcom: smd-rpm: Add IPQ6018 compatible Link: https://lore.kernel.org/r/20200730051852.649761-1-bjorn.andersson@linaro.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-31Merge tag 'memory-controller-drv-5.9-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers Memory controller drivers for v5.9, part 2 1. Minor cleanups and fixes of multiple memory controller drivers, mostly around code quality and readability, 2. Add Git repository to drivers/memory entry in MAINTAINERS, 3. Allow MIPS jz4780 FUSE driver to probe by removing conflicting memory region with jz4780_nemc. * tag 'memory-controller-drv-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl: memory: jz4780_nemc: Only request IO memory the driver will use MAINTAINERS: Add Git repository for memory controller drivers memory: brcmstb_dpfe: Fix language typo memory: samsung: exynos5422-dmc: Correct white space issues memory: samsung: exynos-srom: Correct alignment memory: pl172: Enclose macro argument usage in parenthesis memory: of: Correct kerneldoc memory: omap-gpmc: Fix language typo memory: omap-gpmc: Correct white space issues memory: omap-gpmc: Use 'unsigned int' for consistency memory: omap-gpmc: Enclose macro argument usage in parenthesis memory: omap-gpmc: Correct kerneldoc memory: mvebu-devbus: Align with open parenthesis memory: mvebu-devbus: Add missing braces to all arms of if statement memory: bt1-l2-ctl: Add blank lines after declarations Link: https://lore.kernel.org/r/20200729163008.5820-1-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-31crypto: sa2ul - Fix inconsistent IS_ERR and PTR_ERRGustavo A. R. Silva
Fix inconsistent IS_ERR and PTR_ERR in sa_dma_init(). The proper pointer to be passed as argument to PTR_ERR() is dd->dma_tx. This bug was detected with the help of Coccinelle. Fixes: 7694b6ca649f ("crypto: sa2ul - Add crypto driver") Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-31hwrng: core - remove redundant initialization of variable retColin Ian King
The variable ret is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-31crypto: x86/curve25519 - Remove unused carry variablesHerbert Xu
The carry variables are assigned but never used, which upsets the compiler. This patch removes them. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: Karthikeyan Bhargavan <karthik.bhargavan@gmail.com> Acked-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-31crypto: ingenic - Add hardware RNG for Ingenic JZ4780 and X1000周琰杰 (Zhou Yanjie)
Add JZ4780 SoC and X1000 SoC random number generator driver, based on PrasannaKumar Muralidharan's JZ4780 RNG driver. Tested-by: 周正 (Zhou Zheng) <sernia.zhou@foxmail.com> Tested-by: Mathieu Malaterre <malat@debian.org> Suggested-by: Jeffrey Walton <noloader@gmail.com> Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-31dt-bindings: RNG: Add Ingenic RNG bindings.周琰杰 (Zhou Yanjie)
Add the RNG bindings for the JZ4780 SoC and the X1000 SoC from Ingenic. Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-31crypto: caam/qi2 - add module aliasHoria Geantă
Add a module alias, to enable udev-based module autoloading: $ modinfo -F alias drivers/crypto/caam/dpaa2_caam.ko fsl-mc:v00001957ddpseci Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-31crypto: caam - add more RNG hw error codesHoria Geantă
In some cases, e.g. when TRNG is not properly configured, the RNG module could issue a "Hardware error" at runtime. "Continuos check" error is emitted when some of the BISTs fail. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-31crypto: caam/jr - remove incorrect reference to caam_jr_register()Dan Douglass
caam_jr_register() function is no longer part of the driver since commit 6dad41158db6 ("crypto: caam - Remove unused functions from Job Ring") This patch removes a comment referencing the function. Signed-off-by: Dan Douglass <dan.douglass@nxp.com> Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-31crypto: caam - silence .setkey in case of bad key lengthHoria Geantă
In case of bad key length, driver emits "key size mismatch" messages, but only for xts(aes) algorithms. Reduce verbosity by making them visible only when debugging. This way crypto fuzz testing log cleans up a bit. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-31crypto: caam/qi2 - create ahash shared descriptors only onceHoria Geantă
For keyed hash algorithms, shared descriptors are currently generated twice: -at tfm initialization time, in cra_init() callback -in setkey() callback Since it's mandatory to call setkey() for keyed algorithms, drop the generation in cra_init(). This is similar to the change in caamhash (caam/jr top-level library) commit 9a2537d0ebc9 ("crypto: caam - create ahash shared descriptors only once") Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-31crypto: caam/qi2 - fix error reporting for caam_hash_allocHoria Geantă
Fix error reporting when preparation of an hmac algorithm for registration fails: print the hmac algorithm name, not the unkeyed hash algorithm name. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-31crypto: caam - remove deadcode on 32-bit platformsFranck LENORMAND
When building on a platform with a 32bit DMA address, taking the upper 32 bits makes no sense. Signed-off-by: Franck LENORMAND <franck.lenormand@nxp.com> Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-31crypto: ccp - use generic power managementVaibhav Gupta
Drivers using legacy power management .suspen()/.resume() callbacks have to manage PCI states and device's PM states themselves. They also need to take care of standard configuration registers. Switch to generic power management framework using a single "struct dev_pm_ops" variable to take the unnecessary load from the driver. This also avoids the need for the driver to directly call most of the PCI helper functions and device power state control functions as through the generic framework, PCI Core takes care of the necessary operations, and drivers are required to do only device-specific jobs. Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com> Acked-by: John Allen <john.allen@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-31Merge tag 'socfpga_update_for_v5.9' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into arm/soc SoCFPGA update for v5.9, part 2 - Add missing put_device() call in socfpga base power management support * tag 'socfpga_update_for_v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux: ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh() ARM: dts: socfpga: add the temperature sensor to the Arria10 devkit arm: dts: socfpga: add reset-names to spi node arm64: dts: agilex: add nand clocks arm64: dts: agilex: populate clock dts entries for Intel SoCFPGA Agilex Link: https://lore.kernel.org/r/20200729165037.3099-1-dinguyen@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-31crypto: xts - Replace memcpy() invocation with simple assignmentArd Biesheuvel
Colin reports that the memcpy() call in xts_cts_final() trigggers a "Overlapping buffer in memory copy" warning in Coverity, which is a false postive, given that tail is guaranteed to be smaller than or equal to the distance between source and destination. However, given that any additional bytes that we copy will be ignored anyway, we can simply copy XTS_BLOCK_SIZE unconditionally, which means we can use struct assignment of the array members instead, which is likely to be more efficient as well. Addresses-Coverity: ("Overlapping buffer in memory copy") Fixes: 8083b1bf8163 ("crypto: xts - add support for ciphertext stealing") Reported-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
generated by cgit (git 2.34.1) at 2025-09-14 18:52:52 +0000