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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /arch/arm64/crypto/sm4-ce-gcm-core.S
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to '')
-rw-r--r--arch/arm64/crypto/sm4-ce-gcm-core.S742
1 files changed, 742 insertions, 0 deletions
diff --git a/arch/arm64/crypto/sm4-ce-gcm-core.S b/arch/arm64/crypto/sm4-ce-gcm-core.S
new file mode 100644
index 000000000..347f25d75
--- /dev/null
+++ b/arch/arm64/crypto/sm4-ce-gcm-core.S
@@ -0,0 +1,742 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * SM4-GCM AEAD Algorithm using ARMv8 Crypto Extensions
+ * as specified in rfc8998
+ * https://datatracker.ietf.org/doc/html/rfc8998
+ *
+ * Copyright (C) 2016 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ * Copyright (C) 2022 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ */
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+#include <asm/assembler.h>
+#include "sm4-ce-asm.h"
+
+.arch armv8-a+crypto
+
+.irp b, 0, 1, 2, 3, 24, 25, 26, 27, 28, 29, 30, 31
+ .set .Lv\b\().4s, \b
+.endr
+
+.macro sm4e, vd, vn
+ .inst 0xcec08400 | (.L\vn << 5) | .L\vd
+.endm
+
+/* Register macros */
+
+/* Used for both encryption and decryption */
+#define RHASH v21
+#define RRCONST v22
+#define RZERO v23
+
+/* Helper macros. */
+
+/*
+ * input: m0, m1
+ * output: r0:r1 (low 128-bits in r0, high in r1)
+ */
+#define PMUL_128x128(r0, r1, m0, m1, T0, T1) \
+ ext T0.16b, m1.16b, m1.16b, #8; \
+ pmull r0.1q, m0.1d, m1.1d; \
+ pmull T1.1q, m0.1d, T0.1d; \
+ pmull2 T0.1q, m0.2d, T0.2d; \
+ pmull2 r1.1q, m0.2d, m1.2d; \
+ eor T0.16b, T0.16b, T1.16b; \
+ ext T1.16b, RZERO.16b, T0.16b, #8; \
+ ext T0.16b, T0.16b, RZERO.16b, #8; \
+ eor r0.16b, r0.16b, T1.16b; \
+ eor r1.16b, r1.16b, T0.16b;
+
+#define PMUL_128x128_4x(r0, r1, m0, m1, T0, T1, \
+ r2, r3, m2, m3, T2, T3, \
+ r4, r5, m4, m5, T4, T5, \
+ r6, r7, m6, m7, T6, T7) \
+ ext T0.16b, m1.16b, m1.16b, #8; \
+ ext T2.16b, m3.16b, m3.16b, #8; \
+ ext T4.16b, m5.16b, m5.16b, #8; \
+ ext T6.16b, m7.16b, m7.16b, #8; \
+ pmull r0.1q, m0.1d, m1.1d; \
+ pmull r2.1q, m2.1d, m3.1d; \
+ pmull r4.1q, m4.1d, m5.1d; \
+ pmull r6.1q, m6.1d, m7.1d; \
+ pmull T1.1q, m0.1d, T0.1d; \
+ pmull T3.1q, m2.1d, T2.1d; \
+ pmull T5.1q, m4.1d, T4.1d; \
+ pmull T7.1q, m6.1d, T6.1d; \
+ pmull2 T0.1q, m0.2d, T0.2d; \
+ pmull2 T2.1q, m2.2d, T2.2d; \
+ pmull2 T4.1q, m4.2d, T4.2d; \
+ pmull2 T6.1q, m6.2d, T6.2d; \
+ pmull2 r1.1q, m0.2d, m1.2d; \
+ pmull2 r3.1q, m2.2d, m3.2d; \
+ pmull2 r5.1q, m4.2d, m5.2d; \
+ pmull2 r7.1q, m6.2d, m7.2d; \
+ eor T0.16b, T0.16b, T1.16b; \
+ eor T2.16b, T2.16b, T3.16b; \
+ eor T4.16b, T4.16b, T5.16b; \
+ eor T6.16b, T6.16b, T7.16b; \
+ ext T1.16b, RZERO.16b, T0.16b, #8; \
+ ext T3.16b, RZERO.16b, T2.16b, #8; \
+ ext T5.16b, RZERO.16b, T4.16b, #8; \
+ ext T7.16b, RZERO.16b, T6.16b, #8; \
+ ext T0.16b, T0.16b, RZERO.16b, #8; \
+ ext T2.16b, T2.16b, RZERO.16b, #8; \
+ ext T4.16b, T4.16b, RZERO.16b, #8; \
+ ext T6.16b, T6.16b, RZERO.16b, #8; \
+ eor r0.16b, r0.16b, T1.16b; \
+ eor r2.16b, r2.16b, T3.16b; \
+ eor r4.16b, r4.16b, T5.16b; \
+ eor r6.16b, r6.16b, T7.16b; \
+ eor r1.16b, r1.16b, T0.16b; \
+ eor r3.16b, r3.16b, T2.16b; \
+ eor r5.16b, r5.16b, T4.16b; \
+ eor r7.16b, r7.16b, T6.16b;
+
+/*
+ * input: r0:r1 (low 128-bits in r0, high in r1)
+ * output: a
+ */
+#define REDUCTION(a, r0, r1, rconst, T0, T1) \
+ pmull2 T0.1q, r1.2d, rconst.2d; \
+ ext T1.16b, T0.16b, RZERO.16b, #8; \
+ ext T0.16b, RZERO.16b, T0.16b, #8; \
+ eor r1.16b, r1.16b, T1.16b; \
+ eor r0.16b, r0.16b, T0.16b; \
+ pmull T0.1q, r1.1d, rconst.1d; \
+ eor a.16b, r0.16b, T0.16b;
+
+#define SM4_CRYPT_PMUL_128x128_BLK(b0, r0, r1, m0, m1, T0, T1) \
+ rev32 b0.16b, b0.16b; \
+ ext T0.16b, m1.16b, m1.16b, #8; \
+ sm4e b0.4s, v24.4s; \
+ pmull r0.1q, m0.1d, m1.1d; \
+ sm4e b0.4s, v25.4s; \
+ pmull T1.1q, m0.1d, T0.1d; \
+ sm4e b0.4s, v26.4s; \
+ pmull2 T0.1q, m0.2d, T0.2d; \
+ sm4e b0.4s, v27.4s; \
+ pmull2 r1.1q, m0.2d, m1.2d; \
+ sm4e b0.4s, v28.4s; \
+ eor T0.16b, T0.16b, T1.16b; \
+ sm4e b0.4s, v29.4s; \
+ ext T1.16b, RZERO.16b, T0.16b, #8; \
+ sm4e b0.4s, v30.4s; \
+ ext T0.16b, T0.16b, RZERO.16b, #8; \
+ sm4e b0.4s, v31.4s; \
+ eor r0.16b, r0.16b, T1.16b; \
+ rev64 b0.4s, b0.4s; \
+ eor r1.16b, r1.16b, T0.16b; \
+ ext b0.16b, b0.16b, b0.16b, #8; \
+ rev32 b0.16b, b0.16b;
+
+#define SM4_CRYPT_PMUL_128x128_BLK3(b0, b1, b2, \
+ r0, r1, m0, m1, T0, T1, \
+ r2, r3, m2, m3, T2, T3, \
+ r4, r5, m4, m5, T4, T5) \
+ rev32 b0.16b, b0.16b; \
+ rev32 b1.16b, b1.16b; \
+ rev32 b2.16b, b2.16b; \
+ ext T0.16b, m1.16b, m1.16b, #8; \
+ ext T2.16b, m3.16b, m3.16b, #8; \
+ ext T4.16b, m5.16b, m5.16b, #8; \
+ sm4e b0.4s, v24.4s; \
+ sm4e b1.4s, v24.4s; \
+ sm4e b2.4s, v24.4s; \
+ pmull r0.1q, m0.1d, m1.1d; \
+ pmull r2.1q, m2.1d, m3.1d; \
+ pmull r4.1q, m4.1d, m5.1d; \
+ sm4e b0.4s, v25.4s; \
+ sm4e b1.4s, v25.4s; \
+ sm4e b2.4s, v25.4s; \
+ pmull T1.1q, m0.1d, T0.1d; \
+ pmull T3.1q, m2.1d, T2.1d; \
+ pmull T5.1q, m4.1d, T4.1d; \
+ sm4e b0.4s, v26.4s; \
+ sm4e b1.4s, v26.4s; \
+ sm4e b2.4s, v26.4s; \
+ pmull2 T0.1q, m0.2d, T0.2d; \
+ pmull2 T2.1q, m2.2d, T2.2d; \
+ pmull2 T4.1q, m4.2d, T4.2d; \
+ sm4e b0.4s, v27.4s; \
+ sm4e b1.4s, v27.4s; \
+ sm4e b2.4s, v27.4s; \
+ pmull2 r1.1q, m0.2d, m1.2d; \
+ pmull2 r3.1q, m2.2d, m3.2d; \
+ pmull2 r5.1q, m4.2d, m5.2d; \
+ sm4e b0.4s, v28.4s; \
+ sm4e b1.4s, v28.4s; \
+ sm4e b2.4s, v28.4s; \
+ eor T0.16b, T0.16b, T1.16b; \
+ eor T2.16b, T2.16b, T3.16b; \
+ eor T4.16b, T4.16b, T5.16b; \
+ sm4e b0.4s, v29.4s; \
+ sm4e b1.4s, v29.4s; \
+ sm4e b2.4s, v29.4s; \
+ ext T1.16b, RZERO.16b, T0.16b, #8; \
+ ext T3.16b, RZERO.16b, T2.16b, #8; \
+ ext T5.16b, RZERO.16b, T4.16b, #8; \
+ sm4e b0.4s, v30.4s; \
+ sm4e b1.4s, v30.4s; \
+ sm4e b2.4s, v30.4s; \
+ ext T0.16b, T0.16b, RZERO.16b, #8; \
+ ext T2.16b, T2.16b, RZERO.16b, #8; \
+ ext T4.16b, T4.16b, RZERO.16b, #8; \
+ sm4e b0.4s, v31.4s; \
+ sm4e b1.4s, v31.4s; \
+ sm4e b2.4s, v31.4s; \
+ eor r0.16b, r0.16b, T1.16b; \
+ eor r2.16b, r2.16b, T3.16b; \
+ eor r4.16b, r4.16b, T5.16b; \
+ rev64 b0.4s, b0.4s; \
+ rev64 b1.4s, b1.4s; \
+ rev64 b2.4s, b2.4s; \
+ eor r1.16b, r1.16b, T0.16b; \
+ eor r3.16b, r3.16b, T2.16b; \
+ eor r5.16b, r5.16b, T4.16b; \
+ ext b0.16b, b0.16b, b0.16b, #8; \
+ ext b1.16b, b1.16b, b1.16b, #8; \
+ ext b2.16b, b2.16b, b2.16b, #8; \
+ eor r0.16b, r0.16b, r2.16b; \
+ eor r1.16b, r1.16b, r3.16b; \
+ rev32 b0.16b, b0.16b; \
+ rev32 b1.16b, b1.16b; \
+ rev32 b2.16b, b2.16b; \
+ eor r0.16b, r0.16b, r4.16b; \
+ eor r1.16b, r1.16b, r5.16b;
+
+#define inc32_le128(vctr) \
+ mov vctr.d[1], x9; \
+ add w6, w9, #1; \
+ mov vctr.d[0], x8; \
+ bfi x9, x6, #0, #32; \
+ rev64 vctr.16b, vctr.16b;
+
+#define GTAG_HASH_LENGTHS(vctr0, vlen) \
+ ld1 {vlen.16b}, [x7]; \
+ /* construct CTR0 */ \
+ /* the lower 32-bits of initial IV is always be32(1) */ \
+ mov x6, #0x1; \
+ bfi x9, x6, #0, #32; \
+ mov vctr0.d[0], x8; \
+ mov vctr0.d[1], x9; \
+ rbit vlen.16b, vlen.16b; \
+ rev64 vctr0.16b, vctr0.16b; \
+ /* authtag = GCTR(CTR0, GHASH) */ \
+ eor RHASH.16b, RHASH.16b, vlen.16b; \
+ SM4_CRYPT_PMUL_128x128_BLK(vctr0, RR0, RR1, RHASH, RH1, \
+ RTMP0, RTMP1); \
+ REDUCTION(RHASH, RR0, RR1, RRCONST, RTMP2, RTMP3); \
+ rbit RHASH.16b, RHASH.16b; \
+ eor RHASH.16b, RHASH.16b, vctr0.16b;
+
+
+/* Register macros for encrypt and ghash */
+
+/* can be the same as input v0-v3 */
+#define RR1 v0
+#define RR3 v1
+#define RR5 v2
+#define RR7 v3
+
+#define RR0 v4
+#define RR2 v5
+#define RR4 v6
+#define RR6 v7
+
+#define RTMP0 v8
+#define RTMP1 v9
+#define RTMP2 v10
+#define RTMP3 v11
+#define RTMP4 v12
+#define RTMP5 v13
+#define RTMP6 v14
+#define RTMP7 v15
+
+#define RH1 v16
+#define RH2 v17
+#define RH3 v18
+#define RH4 v19
+
+.align 3
+SYM_FUNC_START(sm4_ce_pmull_ghash_setup)
+ /* input:
+ * x0: round key array, CTX
+ * x1: ghash table
+ */
+ SM4_PREPARE(x0)
+
+ adr_l x2, .Lghash_rconst
+ ld1r {RRCONST.2d}, [x2]
+
+ eor RZERO.16b, RZERO.16b, RZERO.16b
+
+ /* H = E(K, 0^128) */
+ rev32 v0.16b, RZERO.16b
+ SM4_CRYPT_BLK_BE(v0)
+
+ /* H ^ 1 */
+ rbit RH1.16b, v0.16b
+
+ /* H ^ 2 */
+ PMUL_128x128(RR0, RR1, RH1, RH1, RTMP0, RTMP1)
+ REDUCTION(RH2, RR0, RR1, RRCONST, RTMP2, RTMP3)
+
+ /* H ^ 3 */
+ PMUL_128x128(RR0, RR1, RH2, RH1, RTMP0, RTMP1)
+ REDUCTION(RH3, RR0, RR1, RRCONST, RTMP2, RTMP3)
+
+ /* H ^ 4 */
+ PMUL_128x128(RR0, RR1, RH2, RH2, RTMP0, RTMP1)
+ REDUCTION(RH4, RR0, RR1, RRCONST, RTMP2, RTMP3)
+
+ st1 {RH1.16b-RH4.16b}, [x1]
+
+ ret
+SYM_FUNC_END(sm4_ce_pmull_ghash_setup)
+
+.align 3
+SYM_FUNC_START(pmull_ghash_update)
+ /* input:
+ * x0: ghash table
+ * x1: ghash result
+ * x2: src
+ * w3: nblocks
+ */
+ ld1 {RH1.16b-RH4.16b}, [x0]
+
+ ld1 {RHASH.16b}, [x1]
+ rbit RHASH.16b, RHASH.16b
+
+ adr_l x4, .Lghash_rconst
+ ld1r {RRCONST.2d}, [x4]
+
+ eor RZERO.16b, RZERO.16b, RZERO.16b
+
+.Lghash_loop_4x:
+ cmp w3, #4
+ blt .Lghash_loop_1x
+
+ sub w3, w3, #4
+
+ ld1 {v0.16b-v3.16b}, [x2], #64
+
+ rbit v0.16b, v0.16b
+ rbit v1.16b, v1.16b
+ rbit v2.16b, v2.16b
+ rbit v3.16b, v3.16b
+
+ /*
+ * (in0 ^ HASH) * H^4 => rr0:rr1
+ * (in1) * H^3 => rr2:rr3
+ * (in2) * H^2 => rr4:rr5
+ * (in3) * H^1 => rr6:rr7
+ */
+ eor RHASH.16b, RHASH.16b, v0.16b
+
+ PMUL_128x128_4x(RR0, RR1, RHASH, RH4, RTMP0, RTMP1,
+ RR2, RR3, v1, RH3, RTMP2, RTMP3,
+ RR4, RR5, v2, RH2, RTMP4, RTMP5,
+ RR6, RR7, v3, RH1, RTMP6, RTMP7)
+
+ eor RR0.16b, RR0.16b, RR2.16b
+ eor RR1.16b, RR1.16b, RR3.16b
+ eor RR0.16b, RR0.16b, RR4.16b
+ eor RR1.16b, RR1.16b, RR5.16b
+ eor RR0.16b, RR0.16b, RR6.16b
+ eor RR1.16b, RR1.16b, RR7.16b
+
+ REDUCTION(RHASH, RR0, RR1, RRCONST, RTMP0, RTMP1)
+
+ cbz w3, .Lghash_end
+ b .Lghash_loop_4x
+
+.Lghash_loop_1x:
+ sub w3, w3, #1
+
+ ld1 {v0.16b}, [x2], #16
+ rbit v0.16b, v0.16b
+ eor RHASH.16b, RHASH.16b, v0.16b
+
+ PMUL_128x128(RR0, RR1, RHASH, RH1, RTMP0, RTMP1)
+ REDUCTION(RHASH, RR0, RR1, RRCONST, RTMP2, RTMP3)
+
+ cbnz w3, .Lghash_loop_1x
+
+.Lghash_end:
+ rbit RHASH.16b, RHASH.16b
+ st1 {RHASH.2d}, [x1]
+
+ ret
+SYM_FUNC_END(pmull_ghash_update)
+
+.align 3
+SYM_TYPED_FUNC_START(sm4_ce_pmull_gcm_enc)
+ /* input:
+ * x0: round key array, CTX
+ * x1: dst
+ * x2: src
+ * x3: ctr (big endian, 128 bit)
+ * w4: nbytes
+ * x5: ghash result
+ * x6: ghash table
+ * x7: lengths (only for last block)
+ */
+ SM4_PREPARE(x0)
+
+ ldp x8, x9, [x3]
+ rev x8, x8
+ rev x9, x9
+
+ ld1 {RH1.16b-RH4.16b}, [x6]
+
+ ld1 {RHASH.16b}, [x5]
+ rbit RHASH.16b, RHASH.16b
+
+ adr_l x6, .Lghash_rconst
+ ld1r {RRCONST.2d}, [x6]
+
+ eor RZERO.16b, RZERO.16b, RZERO.16b
+
+ cbz w4, .Lgcm_enc_hash_len
+
+.Lgcm_enc_loop_4x:
+ cmp w4, #(4 * 16)
+ blt .Lgcm_enc_loop_1x
+
+ sub w4, w4, #(4 * 16)
+
+ /* construct CTRs */
+ inc32_le128(v0) /* +0 */
+ inc32_le128(v1) /* +1 */
+ inc32_le128(v2) /* +2 */
+ inc32_le128(v3) /* +3 */
+
+ ld1 {RTMP0.16b-RTMP3.16b}, [x2], #64
+
+ SM4_CRYPT_BLK4(v0, v1, v2, v3)
+
+ eor v0.16b, v0.16b, RTMP0.16b
+ eor v1.16b, v1.16b, RTMP1.16b
+ eor v2.16b, v2.16b, RTMP2.16b
+ eor v3.16b, v3.16b, RTMP3.16b
+ st1 {v0.16b-v3.16b}, [x1], #64
+
+ /* ghash update */
+
+ rbit v0.16b, v0.16b
+ rbit v1.16b, v1.16b
+ rbit v2.16b, v2.16b
+ rbit v3.16b, v3.16b
+
+ /*
+ * (in0 ^ HASH) * H^4 => rr0:rr1
+ * (in1) * H^3 => rr2:rr3
+ * (in2) * H^2 => rr4:rr5
+ * (in3) * H^1 => rr6:rr7
+ */
+ eor RHASH.16b, RHASH.16b, v0.16b
+
+ PMUL_128x128_4x(RR0, RR1, RHASH, RH4, RTMP0, RTMP1,
+ RR2, RR3, v1, RH3, RTMP2, RTMP3,
+ RR4, RR5, v2, RH2, RTMP4, RTMP5,
+ RR6, RR7, v3, RH1, RTMP6, RTMP7)
+
+ eor RR0.16b, RR0.16b, RR2.16b
+ eor RR1.16b, RR1.16b, RR3.16b
+ eor RR0.16b, RR0.16b, RR4.16b
+ eor RR1.16b, RR1.16b, RR5.16b
+ eor RR0.16b, RR0.16b, RR6.16b
+ eor RR1.16b, RR1.16b, RR7.16b
+
+ REDUCTION(RHASH, RR0, RR1, RRCONST, RTMP0, RTMP1)
+
+ cbz w4, .Lgcm_enc_hash_len
+ b .Lgcm_enc_loop_4x
+
+.Lgcm_enc_loop_1x:
+ cmp w4, #16
+ blt .Lgcm_enc_tail
+
+ sub w4, w4, #16
+
+ /* construct CTRs */
+ inc32_le128(v0)
+
+ ld1 {RTMP0.16b}, [x2], #16
+
+ SM4_CRYPT_BLK(v0)
+
+ eor v0.16b, v0.16b, RTMP0.16b
+ st1 {v0.16b}, [x1], #16
+
+ /* ghash update */
+ rbit v0.16b, v0.16b
+ eor RHASH.16b, RHASH.16b, v0.16b
+ PMUL_128x128(RR0, RR1, RHASH, RH1, RTMP0, RTMP1)
+ REDUCTION(RHASH, RR0, RR1, RRCONST, RTMP2, RTMP3)
+
+ cbz w4, .Lgcm_enc_hash_len
+ b .Lgcm_enc_loop_1x
+
+.Lgcm_enc_tail:
+ /* construct CTRs */
+ inc32_le128(v0)
+ SM4_CRYPT_BLK(v0)
+
+ /* load permute table */
+ adr_l x0, .Lcts_permute_table
+ add x0, x0, #32
+ sub x0, x0, w4, uxtw
+ ld1 {v3.16b}, [x0]
+
+.Lgcm_enc_tail_loop:
+ /* do encrypt */
+ ldrb w0, [x2], #1 /* get 1 byte from input */
+ umov w6, v0.b[0] /* get top crypted byte */
+ eor w6, w6, w0 /* w6 = CTR ^ input */
+ strb w6, [x1], #1 /* store out byte */
+
+ /* shift right out one byte */
+ ext v0.16b, v0.16b, v0.16b, #1
+ /* the last ciphertext is placed in high bytes */
+ ins v0.b[15], w6
+
+ subs w4, w4, #1
+ bne .Lgcm_enc_tail_loop
+
+ /* padding last block with zeros */
+ tbl v0.16b, {v0.16b}, v3.16b
+
+ /* ghash update */
+ rbit v0.16b, v0.16b
+ eor RHASH.16b, RHASH.16b, v0.16b
+ PMUL_128x128(RR0, RR1, RHASH, RH1, RTMP0, RTMP1)
+ REDUCTION(RHASH, RR0, RR1, RRCONST, RTMP2, RTMP3)
+
+.Lgcm_enc_hash_len:
+ cbz x7, .Lgcm_enc_end
+
+ GTAG_HASH_LENGTHS(v1, v3)
+
+ b .Lgcm_enc_ret
+
+.Lgcm_enc_end:
+ /* store new CTR */
+ rev x8, x8
+ rev x9, x9
+ stp x8, x9, [x3]
+
+ rbit RHASH.16b, RHASH.16b
+
+.Lgcm_enc_ret:
+ /* store new MAC */
+ st1 {RHASH.2d}, [x5]
+
+ ret
+SYM_FUNC_END(sm4_ce_pmull_gcm_enc)
+
+#undef RR1
+#undef RR3
+#undef RR5
+#undef RR7
+#undef RR0
+#undef RR2
+#undef RR4
+#undef RR6
+#undef RTMP0
+#undef RTMP1
+#undef RTMP2
+#undef RTMP3
+#undef RTMP4
+#undef RTMP5
+#undef RTMP6
+#undef RTMP7
+#undef RH1
+#undef RH2
+#undef RH3
+#undef RH4
+
+
+/* Register macros for decrypt */
+
+/* v0-v2 for building CTRs, v3-v5 for saving inputs */
+
+#define RR1 v6
+#define RR3 v7
+#define RR5 v8
+
+#define RR0 v9
+#define RR2 v10
+#define RR4 v11
+
+#define RTMP0 v12
+#define RTMP1 v13
+#define RTMP2 v14
+#define RTMP3 v15
+#define RTMP4 v16
+#define RTMP5 v17
+
+#define RH1 v18
+#define RH2 v19
+#define RH3 v20
+
+.align 3
+SYM_TYPED_FUNC_START(sm4_ce_pmull_gcm_dec)
+ /* input:
+ * x0: round key array, CTX
+ * x1: dst
+ * x2: src
+ * x3: ctr (big endian, 128 bit)
+ * w4: nbytes
+ * x5: ghash result
+ * x6: ghash table
+ * x7: lengths (only for last block)
+ */
+ SM4_PREPARE(x0)
+
+ ldp x8, x9, [x3]
+ rev x8, x8
+ rev x9, x9
+
+ ld1 {RH1.16b-RH3.16b}, [x6]
+
+ ld1 {RHASH.16b}, [x5]
+ rbit RHASH.16b, RHASH.16b
+
+ adr_l x6, .Lghash_rconst
+ ld1r {RRCONST.2d}, [x6]
+
+ eor RZERO.16b, RZERO.16b, RZERO.16b
+
+ cbz w4, .Lgcm_dec_hash_len
+
+.Lgcm_dec_loop_3x:
+ cmp w4, #(3 * 16)
+ blt .Lgcm_dec_loop_1x
+
+ sub w4, w4, #(3 * 16)
+
+ ld1 {v3.16b-v5.16b}, [x2], #(3 * 16)
+
+ /* construct CTRs */
+ inc32_le128(v0) /* +0 */
+ rbit v6.16b, v3.16b
+ inc32_le128(v1) /* +1 */
+ rbit v7.16b, v4.16b
+ inc32_le128(v2) /* +2 */
+ rbit v8.16b, v5.16b
+
+ eor RHASH.16b, RHASH.16b, v6.16b
+
+ /* decrypt & ghash update */
+ SM4_CRYPT_PMUL_128x128_BLK3(v0, v1, v2,
+ RR0, RR1, RHASH, RH3, RTMP0, RTMP1,
+ RR2, RR3, v7, RH2, RTMP2, RTMP3,
+ RR4, RR5, v8, RH1, RTMP4, RTMP5)
+
+ eor v0.16b, v0.16b, v3.16b
+ eor v1.16b, v1.16b, v4.16b
+ eor v2.16b, v2.16b, v5.16b
+
+ REDUCTION(RHASH, RR0, RR1, RRCONST, RTMP0, RTMP1)
+
+ st1 {v0.16b-v2.16b}, [x1], #(3 * 16)
+
+ cbz w4, .Lgcm_dec_hash_len
+ b .Lgcm_dec_loop_3x
+
+.Lgcm_dec_loop_1x:
+ cmp w4, #16
+ blt .Lgcm_dec_tail
+
+ sub w4, w4, #16
+
+ ld1 {v3.16b}, [x2], #16
+
+ /* construct CTRs */
+ inc32_le128(v0)
+ rbit v6.16b, v3.16b
+
+ eor RHASH.16b, RHASH.16b, v6.16b
+
+ SM4_CRYPT_PMUL_128x128_BLK(v0, RR0, RR1, RHASH, RH1, RTMP0, RTMP1)
+
+ eor v0.16b, v0.16b, v3.16b
+
+ REDUCTION(RHASH, RR0, RR1, RRCONST, RTMP2, RTMP3)
+
+ st1 {v0.16b}, [x1], #16
+
+ cbz w4, .Lgcm_dec_hash_len
+ b .Lgcm_dec_loop_1x
+
+.Lgcm_dec_tail:
+ /* construct CTRs */
+ inc32_le128(v0)
+ SM4_CRYPT_BLK(v0)
+
+ /* load permute table */
+ adr_l x0, .Lcts_permute_table
+ add x0, x0, #32
+ sub x0, x0, w4, uxtw
+ ld1 {v3.16b}, [x0]
+
+.Lgcm_dec_tail_loop:
+ /* do decrypt */
+ ldrb w0, [x2], #1 /* get 1 byte from input */
+ umov w6, v0.b[0] /* get top crypted byte */
+ eor w6, w6, w0 /* w6 = CTR ^ input */
+ strb w6, [x1], #1 /* store out byte */
+
+ /* shift right out one byte */
+ ext v0.16b, v0.16b, v0.16b, #1
+ /* the last ciphertext is placed in high bytes */
+ ins v0.b[15], w0
+
+ subs w4, w4, #1
+ bne .Lgcm_dec_tail_loop
+
+ /* padding last block with zeros */
+ tbl v0.16b, {v0.16b}, v3.16b
+
+ /* ghash update */
+ rbit v0.16b, v0.16b
+ eor RHASH.16b, RHASH.16b, v0.16b
+ PMUL_128x128(RR0, RR1, RHASH, RH1, RTMP0, RTMP1)
+ REDUCTION(RHASH, RR0, RR1, RRCONST, RTMP2, RTMP3)
+
+.Lgcm_dec_hash_len:
+ cbz x7, .Lgcm_dec_end
+
+ GTAG_HASH_LENGTHS(v1, v3)
+
+ b .Lgcm_dec_ret
+
+.Lgcm_dec_end:
+ /* store new CTR */
+ rev x8, x8
+ rev x9, x9
+ stp x8, x9, [x3]
+
+ rbit RHASH.16b, RHASH.16b
+
+.Lgcm_dec_ret:
+ /* store new MAC */
+ st1 {RHASH.2d}, [x5]
+
+ ret
+SYM_FUNC_END(sm4_ce_pmull_gcm_dec)
+
+ .section ".rodata", "a"
+ .align 4
+.Lcts_permute_table:
+ .byte 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+ .byte 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+ .byte 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
+ .byte 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf
+ .byte 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+ .byte 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+
+.Lghash_rconst:
+ .quad 0x87