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2018-12-13MAINTAINERS: Add Amlogic sound drivers entryJerome Brunet
Add sound/soc/meson drivers entry for Amlogic audio drivers. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13ASoC: meson: add axg spdif inputJerome Brunet
Add support for the spdif input decoder of the axg SoC family Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13ASoC: meson: add axg spdif input DT binding documentationJerome Brunet
Add the DT binding documentation for axg's SPDIF input. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13ASoC: meson: axg-toddr: add support for spdifin backendJerome Brunet
add IEC958_SUBFRAME_LE to the list of format accepted by the fifo frontend. As opposed to what was initially noted in the toddr dai driver, the spdifin does not place the msb at bit 28, it just output a whole spdif subframe. Placing the msb at bit 28 in the toddr driver just filters out the parity, user, channel status and validity bits. It is better to just provide the whole spdif subframe to the userspace and let the iec958 plugin deal with it. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13drm/vmwgfx: Protect from excessive execbuf kernel memory allocations v3Thomas Hellstrom
With the new validation code, a malicious user-space app could potentially submit command streams with enough buffer-object and resource references in them to have the resulting allocated validion nodes and relocations make the kernel run out of GFP_KERNEL memory. Protect from this by having the validation code reserve TTM graphics memory when allocating. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Deepak Rawat <drawat@vmware.com> --- v2: Removed leftover debug printouts
2018-12-13doc: lpspi: Document DT bindings for LPSPI slave modeClark Wang
Add introductions of interrupt-parent and spi-slave. Signed-off-by: Clark Wang <xiaoning.wang@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13spi: lpspi: Let watermark change with send data lengthClark Wang
Configure watermark to change with the length of the sent data. Support LPSPI sending message shorter than tx/rxfifosize. Signed-off-by: Clark Wang <xiaoning.wang@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13spi: lpspi: Add slave mode supportClark Wang
Add slave mode support to the fsl-lpspi driver, only in PIO mode. For now, there are some limitations for slave mode transmission: 1. The stale data in RXFIFO will be dropped when the Slave does any new transfer. 2. One transfer can be finished only after all transfer->len data been transferred to master device 3. Slave device only accepts transfer->len data. Any data longer than this from master device will be dropped. Any data shorter than this from master will cause LPSPI to stuck due to mentioned limitation 2. 4. Only PIO transfer is supported in Slave Mode. Wire connection: GND, SCK, MISO(to MISO of slave), MOSI(to MOSI of slave), SCS Signed-off-by: Clark Wang <xiaoning.wang@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13spi: lpspi: Replace all "master" with "controller"Clark Wang
In order to enable the slave mode and make the code more readable, replace all related structure names and object names which is named "master" with "controller". Signed-off-by: Clark Wang <xiaoning.wang@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13bpf: sync tools/include/uapi/linux/bpf.hSong Liu
Sync bpf.h for nr_prog_tags and prog_tags. Signed-off-by: Song Liu <songliubraving@fb.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-13bpf: include sub program tags in bpf_prog_infoSong Liu
Changes v2 -> v3: 1. remove check for bpf_dump_raw_ok(). Changes v1 -> v2: 1. Fix error path as Martin suggested. This patch adds nr_prog_tags and prog_tags to bpf_prog_info. This is a reliable way for user space to get tags of all sub programs. Before this patch, user space need to find sub program tags via kallsyms. This feature will be used in BPF introspection, where user space queries information about BPF programs via sys_bpf. Signed-off-by: Song Liu <songliubraving@fb.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-13ASoC: simple-card: Dereference pointer for memcpy sizeof in ↵Nathan Chancellor
asoc_simple_card_probe Commit 4fb7f4df49d3 ("ASoC: simple-card: use cpu/codec pointer on simple_dai_props") updated {cpu,codec}_dai to be pointers in struct simple_dai_props but didn't update these locations to dereference the pointers. This patch fixup it for non DT simple-card use case. Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13Merge branch 'bpf-fix-kptr-checks'Daniel Borkmann
Martin KaFai Lau says: ==================== This patch set removes the bpf_dump_raw_ok() guard for the func_info and line_info during bpf_prog_get_info_by_fd(). ==================== Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-13bpf: Remove !func_info and !line_info check from test_btf and bpftoolMartin KaFai Lau
kernel can provide the func_info and line_info even it fails the btf_dump_raw_ok() test because they don't contain kernel address. This patch removes the corresponding '== 0' test. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-13bpf: Remove bpf_dump_raw_ok() check for func_info and line_infoMartin KaFai Lau
The func_info and line_info have the bpf insn offset but they do not contain kernel address. They will still be useful for the userspace tool to annotate the xlated insn. This patch removes the bpf_dump_raw_ok() guard for the func_info and line_info during bpf_prog_get_info_by_fd(). The guard stays for jited_line_info which contains the kernel address. Although this bpf_dump_raw_ok() guard behavior has started since the earlier func_info patch series, I marked the Fixes tag to the latest line_info patch series which contains both func_info and line_info and this patch is fixing for both of them. Fixes: c454a46b5efd ("bpf: Add bpf_line_info support") Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-13ASoC: fsl-sai: Fix typo in "transmitter"Fabio Estevam
Fix the spelling of "transmitter". Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13Merge branch 'bpf-bpftool-license-update'Daniel Borkmann
Jakub Kicinski says: ==================== We are changing/clarifying the license on bpftool to GPLv2-only + BSD-2-Clause for all files. Current license mix is incompatible with libbfd (which is GPLv3-only) and therefore Debian maintainers are apprehensive about packaging bpftool. Acks include authors of code which has been copied into bpftool (e.g. JSON writer from iproute2, code from tools/bpf, code from BPF samples and selftests, etc.) Thanks again to all the authors who acked the change! ==================== Acked-by: Roman Gushchin <guro@fb.com> Acked-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Yonghong Song <yhs@fb.com> Acked-by: Stanislav Fomichev <sdf@google.com> Acked-by: Sean Young <sean@mess.org> Acked-by: Jiri Benc <jbenc@redhat.com> Acked-by: David Calavera <david.calavera@gmail.com> Acked-by: Andrey Ignatov <rdna@fb.com> Acked-by: Joe Stringer <joe@wand.net.nz> Acked-by: David Ahern <dsahern@gmail.com> Acked-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Acked-by: Petar Penkov <ppenkov@stanford.edu> Acked-by: Sandipan Das <sandipan@linux.ibm.com> Acked-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Taeung Song <treeze.taeung@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> CC: okash.khawaja@gmail.com Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-13tools: bpftool: dual license all filesJakub Kicinski
Currently bpftool contains a mix of GPL-only and GPL or BSD2 licensed files. Make sure all files are dual licensed under GPLv2 and BSD-2-Clause. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Roman Gushchin <guro@fb.com> Acked-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Yonghong Song <yhs@fb.com> Acked-by: Stanislav Fomichev <sdf@google.com> Acked-by: Sean Young <sean@mess.org> Acked-by: Jiri Benc <jbenc@redhat.com> Acked-by: David Calavera <david.calavera@gmail.com> Acked-by: Andrey Ignatov <rdna@fb.com> Acked-by: Joe Stringer <joe@wand.net.nz> Acked-by: David Ahern <dsahern@gmail.com> Acked-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Acked-by: Petar Penkov <ppenkov@stanford.edu> Acked-by: Sandipan Das <sandipan@linux.ibm.com> Acked-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Taeung Song <treeze.taeung@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> CC: okash.khawaja@gmail.com Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-13tools: bpftool: replace Netronome boilerplate with SPDX license headersJakub Kicinski
Replace the repeated license text with SDPX identifiers. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Roman Gushchin <guro@fb.com> Acked-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Yonghong Song <yhs@fb.com> Acked-by: Stanislav Fomichev <sdf@google.com> Acked-by: Sean Young <sean@mess.org> Acked-by: Jiri Benc <jbenc@redhat.com> Acked-by: David Calavera <david.calavera@gmail.com> Acked-by: Andrey Ignatov <rdna@fb.com> Acked-by: Joe Stringer <joe@wand.net.nz> Acked-by: David Ahern <dsahern@gmail.com> Acked-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Acked-by: Petar Penkov <ppenkov@stanford.edu> Acked-by: Sandipan Das <sandipan@linux.ibm.com> Acked-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Taeung Song <treeze.taeung@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> CC: okash.khawaja@gmail.com Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-13tools: bpftool: fix SPDX format in headersJakub Kicinski
Documentation/process/license-rules.rst sayeth: 2. Style: The SPDX license identifier is added in form of a comment. The comment style depends on the file type:: C source: // SPDX-License-Identifier: <SPDX License Expression> C header: /* SPDX-License-Identifier: <SPDX License Expression> */ Headers should use C comment style. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Roman Gushchin <guro@fb.com> Acked-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Yonghong Song <yhs@fb.com> Acked-by: Stanislav Fomichev <sdf@google.com> Acked-by: Sean Young <sean@mess.org> Acked-by: Jiri Benc <jbenc@redhat.com> Acked-by: David Calavera <david.calavera@gmail.com> Acked-by: Andrey Ignatov <rdna@fb.com> Acked-by: Joe Stringer <joe@wand.net.nz> Acked-by: David Ahern <dsahern@gmail.com> Acked-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Acked-by: Petar Penkov <ppenkov@stanford.edu> Acked-by: Sandipan Das <sandipan@linux.ibm.com> Acked-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Taeung Song <treeze.taeung@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> CC: okash.khawaja@gmail.com Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-13ASoC: fsl: Fix SND_SOC_EUKREA_TLV320 build error on i.MX8MFabio Estevam
eukrea-tlv320.c machine driver runs on non-DT platforms and include <asm/mach-types.h> header file in order to be able to use some machine_is_eukrea_xxx() macros. Building it for ARM64 causes the following build error: sound/soc/fsl/eukrea-tlv320.c:28:10: fatal error: asm/mach-types.h: No such file or directory Avoid this error by not allowing to build the SND_SOC_EUKREA_TLV320 driver when ARM64 is selected. This is needed in preparation for the i.MX8M support. Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Fabio Estevam <festevam@gmail.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13crypto: adiantum - fix leaking reference to hash algorithmEric Biggers
crypto_alg_mod_lookup() takes a reference to the hash algorithm but crypto_init_shash_spawn() doesn't take ownership of it, hence the reference needs to be dropped in adiantum_create(). Fixes: 059c2a4d8e16 ("crypto: adiantum - add Adiantum support") Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: user - support incremental algorithm dumpsEric Biggers
CRYPTO_MSG_GETALG in NLM_F_DUMP mode sometimes doesn't return all registered crypto algorithms, because it doesn't support incremental dumps. crypto_dump_report() only permits itself to be called once, yet the netlink subsystem allocates at most ~64 KiB for the skb being dumped to. Thus only the first recvmsg() returns data, and it may only include a subset of the crypto algorithms even if the user buffer passed to recvmsg() is large enough to hold all of them. Fix this by using one of the arguments in the netlink_callback structure to keep track of the current position in the algorithm list. Then userspace can do multiple recvmsg() on the socket after sending the dump request. This is the way netlink dumps work elsewhere in the kernel; it's unclear why this was different (probably just an oversight). Also fix an integer overflow when calculating the dump buffer size hint. Fixes: a38f7907b926 ("crypto: Add userspace configuration API") Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: adiantum - adjust some comments to match latest paperEric Biggers
The 2018-11-28 revision of the Adiantum paper has revised some notation: - 'M' was replaced with 'L' (meaning "Left", for the left-hand part of the message) in the definition of Adiantum hashing, to avoid confusion with the full message - ε-almost-∆-universal is now abbreviated as ε-∆U instead of εA∆U - "block" is now used only to mean block cipher and Poly1305 blocks Also, Adiantum hashing was moved from the appendix to the main paper. To avoid confusion, update relevant comments in the code to match. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: xchacha20 - fix comments for test vectorsEric Biggers
The kernel's ChaCha20 uses the RFC7539 convention of the nonce being 12 bytes rather than 8, so actually I only appended 12 random bytes (not 16) to its test vectors to form 24-byte nonces for the XChaCha20 test vectors. The other 4 bytes were just from zero-padding the stream position to 8 bytes. Fix the comments above the test vectors. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13USB: serial: option: add Fibocom NL668 seriesJörgen Storvist
Added USB serial option driver support for Fibocom NL668 series cellular modules. Reserved USB endpoints 4, 5 and 6 for network + ADB interfaces. usb-devices output (QMI mode) T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 16 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1508 ProdID=1001 Rev=03.18 S: Manufacturer=Nodecom NL668 Modem S: Product=Nodecom NL668-CN Modem S: SerialNumber= C: #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option I: If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan I: If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none) usb-devices output (ECM mode) T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 17 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1508 ProdID=1001 Rev=03.18 S: Manufacturer=Nodecom NL668 Modem S: Product=Nodecom NL668-CN Modem S: SerialNumber= C: #Ifs= 7 Cfg#= 1 Atr=a0 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option I: If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#= 4 Alt= 0 #EPs= 1 Cls=02(commc) Sub=06 Prot=00 Driver=cdc_ether I: If#= 5 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether I: If#= 6 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none) Signed-off-by: Jörgen Storvist <jorgen.storvist@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2018-12-13crypto: xchacha - add test vector from XChaCha20 draft RFCEric Biggers
There is a draft specification for XChaCha20 being worked on. Add the XChaCha20 test vector from the appendix so that we can be extra sure the kernel's implementation is compatible. I also recomputed the ciphertext with XChaCha12 and added it there too, to keep the tests for XChaCha20 and XChaCha12 in sync. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: x86/chacha - yield the FPU occasionallyEric Biggers
To improve responsiveness, yield the FPU (temporarily re-enabling preemption) every 4 KiB encrypted/decrypted, rather than keeping preemption disabled during the entire encryption/decryption operation. Alternatively we could do this for every skcipher_walk step, but steps may be small in some cases, and yielding the FPU is expensive on x86. Suggested-by: Martin Willi <martin@strongswan.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: x86/chacha - add XChaCha12 supportEric Biggers
Now that the x86_64 SIMD implementations of ChaCha20 and XChaCha20 have been refactored to support varying the number of rounds, add support for XChaCha12. This is identical to XChaCha20 except for the number of rounds, which is 12 instead of 20. This can be used by Adiantum. Reviewed-by: Martin Willi <martin@strongswan.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: x86/chacha20 - refactor to allow varying number of roundsEric Biggers
In preparation for adding XChaCha12 support, rename/refactor the x86_64 SIMD implementations of ChaCha20 to support different numbers of rounds. Reviewed-by: Martin Willi <martin@strongswan.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: x86/chacha20 - add XChaCha20 supportEric Biggers
Add an XChaCha20 implementation that is hooked up to the x86_64 SIMD implementations of ChaCha20. This can be used by Adiantum. An SSSE3 implementation of single-block HChaCha20 is also added so that XChaCha20 can use it rather than the generic implementation. This required refactoring the ChaCha permutation into its own function. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: x86/nhpoly1305 - add AVX2 accelerated NHPoly1305Eric Biggers
Add a 64-bit AVX2 implementation of NHPoly1305, an ε-almost-∆-universal hash function used in the Adiantum encryption mode. For now, only the NH portion is actually AVX2-accelerated; the Poly1305 part is less performance-critical so is just implemented in C. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: x86/nhpoly1305 - add SSE2 accelerated NHPoly1305Eric Biggers
Add a 64-bit SSE2 implementation of NHPoly1305, an ε-almost-∆-universal hash function used in the Adiantum encryption mode. For now, only the NH portion is actually SSE2-accelerated; the Poly1305 part is less performance-critical so is just implemented in C. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: adiantum - propagate CRYPTO_ALG_ASYNC flag to instanceEric Biggers
If the stream cipher implementation is asynchronous, then the Adiantum instance must be flagged as asynchronous as well. Otherwise someone asking for a synchronous algorithm can get an asynchronous algorithm. There are no asynchronous xchacha12 or xchacha20 implementations yet which makes this largely a theoretical issue, but it should be fixed. Fixes: 059c2a4d8e16 ("crypto: adiantum - add Adiantum support") Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: arm64/chacha - use combined SIMD/ALU routine for more speedArd Biesheuvel
To some degree, most known AArch64 micro-architectures appear to be able to issue ALU instructions in parellel to SIMD instructions without affecting the SIMD throughput. This means we can use the ALU to process a fifth ChaCha block while the SIMD is processing four blocks in parallel. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: arm64/chacha - optimize for arbitrary length inputsArd Biesheuvel
Update the 4-way NEON ChaCha routine so it can handle input of any length >64 bytes in its entirety, rather than having to call into the 1-way routine and/or memcpy()s via temp buffers to handle the tail of a ChaCha invocation that is not a multiple of 256 bytes. On inputs that are a multiple of 256 bytes (and thus in tcrypt benchmarks), performance drops by around 1% on Cortex-A57, while performance for inputs drawn randomly from the range [64, 1024) increases by around 30%. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: tcrypt - add block size of 1472 to skcipher templateArd Biesheuvel
In order to have better coverage of algorithms operating on block sizes that are in the ballpark of a VPN packet, add 1472 to the block_sizes array. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: cavium/nitrox - Enabled Mailbox supportSrikanth, Jampala
Enabled the PF->VF Mailbox support. Mailbox message are interpreted as {type, opcode, data}. Supported message types are REQ, ACK and NACK. Signed-off-by: Srikanth Jampala <Jampala.Srikanth@cavium.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: arm64/chacha - add XChaCha12 supportEric Biggers
Now that the ARM64 NEON implementation of ChaCha20 and XChaCha20 has been refactored to support varying the number of rounds, add support for XChaCha12. This is identical to XChaCha20 except for the number of rounds, which is 12 instead of 20. This can be used by Adiantum. Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: arm64/chacha20 - refactor to allow varying number of roundsEric Biggers
In preparation for adding XChaCha12 support, rename/refactor the ARM64 NEON implementation of ChaCha20 to support different numbers of rounds. Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: arm64/chacha20 - add XChaCha20 supportEric Biggers
Add an XChaCha20 implementation that is hooked up to the ARM64 NEON implementation of ChaCha20. This can be used by Adiantum. A NEON implementation of single-block HChaCha20 is also added so that XChaCha20 can use it rather than the generic implementation. This required refactoring the ChaCha20 permutation into its own function. Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13crypto: arm64/nhpoly1305 - add NEON-accelerated NHPoly1305Eric Biggers
Add an ARM64 NEON implementation of NHPoly1305, an ε-almost-∆-universal hash function used in the Adiantum encryption mode. For now, only the NH portion is actually NEON-accelerated; the Poly1305 part is less performance-critical so is just implemented in C. Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> # big-endian Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-13Merge tag 'vfio-ccw-20181213' of ↵Martin Schwidefsky
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/vfio-ccw into features Pull vfio-ccw from Cornelia Huck with the following changes: - remove unneeded BOXED state - maintainership changes
2018-12-13s390/zcrypt: rework ap scan bus codeHarald Freudenberger
Rework of the AP bus scan code. The ap_scan_bus() function is large, so this patch splits the code by introducing a new new function _ap_scan_bus_adapter() which deals with just one adapter and thus reduces the scan function code complexity. Now the AP bus scan can handle a type change of an crypto adapter on the fly (e.g. from CEX5 to CEX6). This may be the case with newer versions of zVM where the card may be pure virtual and a type change is just one click. However a type or function change requires to unregister all queue devices and the card device and re-register them. Comments around the AP bus scan code have been added and/or improved to provide some hopefully useful hints about what the code is actually doing. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-12-13s390/zcrypt: make sysfs reset attribute trigger queue resetHarald Freudenberger
Until now there is no way to reset a AP queue or card. Driving a card or queue offline and online again does only toggle the 'software' online state. The only way to trigger a (hardware) reset is by running hot-unplug/hot-plug for example on the HMC. This patch makes the queue reset attribute in sysfs writable. Writing into this attribute triggers a reset on the AP queue's state machine. So the AP queue is flushed and state machine runs through the initial states which cause a reset (PQAP(RAPQ)) and a re-registration to interrupts (PQAP(AQIC)) if available. The reset sysfs attribute is writable by root only. So only an administrator is allowed to initiate a reset of AP queues. Please note that the queue's counter values are left untouched by the reset. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-12-13s390/pci: fix sleeping in atomic during hotplugSebastian Ott
When triggered by pci hotplug (PEC 0x306) clp_get_state is called with spinlocks held resulting in the following warning: zpci: n/a: Event 0x306 reconfigured PCI function 0x0 BUG: sleeping function called from invalid context at mm/page_alloc.c:4324 in_atomic(): 1, irqs_disabled(): 0, pid: 98, name: kmcheck 2 locks held by kmcheck/98: Change the allocation to use GFP_ATOMIC. Cc: stable@vger.kernel.org # 4.13+ Signed-off-by: Sebastian Ott <sebott@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-12-13s390/pci: remove bit_lock usage in interrupt handlerSebastian Ott
The interrupt handler uses bit_spin_lock around a call to retrieve per irq data (the irq number). However this per irq data is only set during irq setup time and never changed until the irq is freed. Thus it's safe to remove the lock usage. Signed-off-by: Sebastian Ott <sebott@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-12-13s390/drivers: fix proc/debugfs file permissionsSebastian Ott
Remove write permissions for fops without a write callback. Signed-off-by: Sebastian Ott <sebott@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-12-13s390: convert to DEFINE_SHOW_ATTRIBUTEYangtao Li
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Sebastian Ott <sebott@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-12-13irqchip/sun4i: Add support for Allwinner ARMv5 F1C100sMesih Kilinc
This patch adds support for suniv Allwinner ARMv5 F1C100s SoC which has stripped version of interrupt controller that found in A10/A13. Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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