From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- arch/parisc/boot/compressed/misc.c | 370 +++++++++++++++++++++++++++++++++++++ 1 file changed, 370 insertions(+) create mode 100644 arch/parisc/boot/compressed/misc.c (limited to 'arch/parisc/boot/compressed/misc.c') diff --git a/arch/parisc/boot/compressed/misc.c b/arch/parisc/boot/compressed/misc.c new file mode 100644 index 000000000..7ee49f588 --- /dev/null +++ b/arch/parisc/boot/compressed/misc.c @@ -0,0 +1,370 @@ +/* + * Definitions and wrapper functions for kernel decompressor + * + * (C) 2017 Helge Deller + */ + +#include +#include +#include +#include +#include "sizes.h" + +/* + * gzip declarations + */ +#define STATIC static + +#undef memmove +#define memmove memmove +#define memzero(s, n) memset((s), 0, (n)) + +#define malloc malloc_gzip +#define free free_gzip + +/* Symbols defined by linker scripts */ +extern char input_data[]; +extern int input_len; +/* output_len is inserted by the linker possibly at an unaligned address */ +extern char output_len; +extern char _text, _end; +extern char _bss, _ebss; +extern char _startcode_end; +extern void startup_continue(void *entry, unsigned long cmdline, + unsigned long rd_start, unsigned long rd_end) __noreturn; + +void error(char *m) __noreturn; + +static unsigned long free_mem_ptr; +static unsigned long free_mem_end_ptr; + +#ifdef CONFIG_KERNEL_GZIP +#include "../../../../lib/decompress_inflate.c" +#endif + +#ifdef CONFIG_KERNEL_BZIP2 +#include "../../../../lib/decompress_bunzip2.c" +#endif + +#ifdef CONFIG_KERNEL_LZ4 +#include "../../../../lib/decompress_unlz4.c" +#endif + +#ifdef CONFIG_KERNEL_LZMA +#include "../../../../lib/decompress_unlzma.c" +#endif + +#ifdef CONFIG_KERNEL_LZO +#include "../../../../lib/decompress_unlzo.c" +#endif + +#ifdef CONFIG_KERNEL_XZ +#include "../../../../lib/decompress_unxz.c" +#endif + +void *memmove(void *dest, const void *src, size_t n) +{ + const char *s = src; + char *d = dest; + + if (d <= s) { + while (n--) + *d++ = *s++; + } else { + d += n; + s += n; + while (n--) + *--d = *--s; + } + return dest; +} + +void *memset(void *s, int c, size_t count) +{ + char *xs = (char *)s; + + while (count--) + *xs++ = c; + return s; +} + +void *memcpy(void *d, const void *s, size_t len) +{ + char *dest = (char *)d; + const char *source = (const char *)s; + + while (len--) + *dest++ = *source++; + return d; +} + +size_t strlen(const char *s) +{ + const char *sc; + + for (sc = s; *sc != '\0'; ++sc) + ; + return sc - s; +} + +char *strchr(const char *s, int c) +{ + while (*s) { + if (*s == (char)c) + return (char *)s; + ++s; + } + return NULL; +} + +int puts(const char *s) +{ + const char *nuline = s; + + while ((nuline = strchr(s, '\n')) != NULL) { + if (nuline != s) + pdc_iodc_print(s, nuline - s); + pdc_iodc_print("\r\n", 2); + s = nuline + 1; + } + if (*s != '\0') + pdc_iodc_print(s, strlen(s)); + + return 0; +} + +static int putchar(int c) +{ + char buf[2]; + + buf[0] = c; + buf[1] = '\0'; + puts(buf); + return c; +} + +void __noreturn error(char *x) +{ + if (x) puts(x); + puts("\n -- System halted\n"); + while (1) /* wait forever */ + ; +} + +static int print_num(unsigned long num, int base) +{ + const char hex[] = "0123456789abcdef"; + char str[40]; + int i = sizeof(str)-1; + + str[i--] = '\0'; + do { + str[i--] = hex[num % base]; + num = num / base; + } while (num); + + if (base == 16) { + str[i--] = 'x'; + str[i] = '0'; + } else i++; + puts(&str[i]); + + return 0; +} + +int printf(const char *fmt, ...) +{ + va_list args; + int i = 0; + + va_start(args, fmt); + + while (fmt[i]) { + if (fmt[i] != '%') { +put: + putchar(fmt[i++]); + continue; + } + + if (fmt[++i] == '%') + goto put; + print_num(va_arg(args, unsigned long), + fmt[i] == 'x' ? 16:10); + ++i; + } + + va_end(args); + return 0; +} + +/* helper functions for libgcc */ +void abort(void) +{ + error("aborted."); +} + +#undef malloc +void *malloc(size_t size) +{ + return malloc_gzip(size); +} + +#undef free +void free(void *ptr) +{ + return free_gzip(ptr); +} + + +static void flush_data_cache(char *start, unsigned long length) +{ + char *end = start + length; + + do { + asm volatile("fdc 0(%0)" : : "r" (start)); + asm volatile("fic 0(%%sr0,%0)" : : "r" (start)); + start += 16; + } while (start < end); + asm volatile("fdc 0(%0)" : : "r" (end)); + + asm ("sync"); +} + +static void parse_elf(void *output) +{ +#ifdef CONFIG_64BIT + Elf64_Ehdr ehdr; + Elf64_Phdr *phdrs, *phdr; +#else + Elf32_Ehdr ehdr; + Elf32_Phdr *phdrs, *phdr; +#endif + void *dest; + int i; + + memcpy(&ehdr, output, sizeof(ehdr)); + if (ehdr.e_ident[EI_MAG0] != ELFMAG0 || + ehdr.e_ident[EI_MAG1] != ELFMAG1 || + ehdr.e_ident[EI_MAG2] != ELFMAG2 || + ehdr.e_ident[EI_MAG3] != ELFMAG3) { + error("Kernel is not a valid ELF file"); + return; + } + +#ifdef DEBUG + printf("Parsing ELF... "); +#endif + + phdrs = malloc(sizeof(*phdrs) * ehdr.e_phnum); + if (!phdrs) + error("Failed to allocate space for phdrs"); + + memcpy(phdrs, output + ehdr.e_phoff, sizeof(*phdrs) * ehdr.e_phnum); + + for (i = 0; i < ehdr.e_phnum; i++) { + phdr = &phdrs[i]; + + switch (phdr->p_type) { + case PT_LOAD: + dest = (void *)((unsigned long) phdr->p_paddr & + (__PAGE_OFFSET_DEFAULT-1)); + memmove(dest, output + phdr->p_offset, phdr->p_filesz); + break; + default: + break; + } + } + + free(phdrs); +} + +unsigned long decompress_kernel(unsigned int started_wide, + unsigned int command_line, + const unsigned int rd_start, + const unsigned int rd_end) +{ + char *output; + unsigned long vmlinux_addr, vmlinux_len; + unsigned long kernel_addr, kernel_len; + +#ifdef CONFIG_64BIT + parisc_narrow_firmware = 0; +#endif + + set_firmware_width_unlocked(); + + putchar('D'); /* if you get this D and no more, string storage */ + /* in $GLOBAL$ is wrong or %dp is wrong */ + puts("ecompressing Linux... "); + + /* where the final bits are stored */ + kernel_addr = KERNEL_BINARY_TEXT_START; + kernel_len = __pa(SZ_end) - __pa(SZparisc_kernel_start); + if ((unsigned long) &_startcode_end > kernel_addr) + error("Bootcode overlaps kernel code"); + + /* + * Calculate addr to where the vmlinux ELF file shall be decompressed. + * Assembly code in head.S positioned the stack directly behind bss, so + * leave 2 MB for the stack. + */ + vmlinux_addr = (unsigned long) &_ebss + 2*1024*1024; + vmlinux_len = get_unaligned_le32(&output_len); + output = (char *) vmlinux_addr; + + /* + * Initialize free_mem_ptr and free_mem_end_ptr. + */ + free_mem_ptr = vmlinux_addr + vmlinux_len; + + /* Limit memory for bootoader to 1GB */ + #define ARTIFICIAL_LIMIT (1*1024*1024*1024) + free_mem_end_ptr = PAGE0->imm_max_mem; + if (free_mem_end_ptr > ARTIFICIAL_LIMIT) + free_mem_end_ptr = ARTIFICIAL_LIMIT; + +#ifdef CONFIG_BLK_DEV_INITRD + /* if we have ramdisk this is at end of memory */ + if (rd_start && rd_start < free_mem_end_ptr) + free_mem_end_ptr = rd_start; +#endif + + if (free_mem_ptr >= free_mem_end_ptr) { + int free_ram; + free_ram = (free_mem_ptr >> 20) + 1; + if (free_ram < 32) + free_ram = 32; + printf("\nKernel requires at least %d MB RAM.\n", + free_ram); + error(NULL); + } + +#ifdef DEBUG + printf("\n"); + printf("startcode_end = %x\n", &_startcode_end); + printf("commandline = %x\n", command_line); + printf("rd_start = %x\n", rd_start); + printf("rd_end = %x\n", rd_end); + + printf("free_ptr = %x\n", free_mem_ptr); + printf("free_ptr_end = %x\n", free_mem_end_ptr); + + printf("input_data = %x\n", input_data); + printf("input_len = %x\n", input_len); + printf("output = %x\n", output); + printf("output_len = %x\n", vmlinux_len); + printf("kernel_addr = %x\n", kernel_addr); + printf("kernel_len = %x\n", kernel_len); +#endif + + __decompress(input_data, input_len, NULL, NULL, + output, 0, NULL, error); + parse_elf(output); + + output = (char *) kernel_addr; + flush_data_cache(output, kernel_len); + + printf("done.\nBooting the kernel.\n"); + + return (unsigned long) output; +} -- cgit v1.2.3