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authorLinus Torvalds <torvalds@linux-foundation.org>2022-06-04 00:09:21 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-06-04 00:09:21 +0300
commitc6f2f3e2c80e975804360665d973211e4d9390cb (patch)
tree8471e582551d1f37722ef507ea67b12647a23f5a /arch/arm/mach-omap1/include/mach/uncompress.h
parent21873bd66b6e6040d95d0a33525ea6933bdc6c71 (diff)
parent8be4493119b0aedf7dd61e1ca520fb398537b53e (diff)
downloadlinux-c6f2f3e2c80e975804360665d973211e4d9390cb.tar.xz
Merge tag 'loongarch-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull initial Loongarch architecture code from Arnd Bergmann: "This is the majority of the loongarch architecture code, including the final system call interface and all core functionality. It still misses three sets of peripheral but vital patches to add support for other subsystems, which have yet to pass review: - The drivers/firmware/efi stub for booting from a standard UEFI firmware implementation. Both the original custom boot interface and a draft implementation of the EFI stub did not make it, so it is currently impossible to boot the kernel, until the loongarch specific portions get accepted into the UEFI subsystem - The drivers/irqchip/irq-loongson-*.c drivers are shared with the the MIPS port, but currently lack support for ACPI based booting, which will get merged through the irqchip subsystem. - Similarly, the drivers/pci/controller/pci-loongson.c needs to be modified for ACPI support, which will be merged through the PCI subsystem. While the port cannot actually be used before all the above are merged, having it in 5.19 helps to establish the user space ABI for the libc ports to build on, and to help any treewide changes in the mainline kernel get applied here as well. A gcc-12 based tool chains for build testing is now included in https://mirrors.edge.kernel.org/pub/tools/crosstool/" Original description from Huacai Chen: "LoongArch is a new RISC ISA, which is a bit like MIPS or RISC-V. LoongArch includes a reduced 32-bit version (LA32R), a standard 32-bit version (LA32S) and a 64-bit version (LA64). LoongArch use ACPI as its boot protocol LoongArch-specific interrupt controllers (similar to APIC) are already added in the next revision of ACPI Specification (current revision is 6.4). This patchset is adding basic LoongArch support in mainline kernel, we can see a complete snapshot here: https://github.com/loongson/linux/tree/loongarch-next https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git/log/?h=loongarch-next Cross-compile tool chain to build kernel: https://github.com/loongson/build-tools/releases/download/2021.12.21/loongarch64-clfs-2022-03-03-cross-tools-gcc-glibc.tar.xz A CLFS-based Linux distro: https://github.com/loongson/build-tools/releases/download/2021.12.21/loongarch64-clfs-system-2022-03-03.tar.bz2 Open-source tool chain which is under review (Binutils and Gcc are already upstream): https://github.com/loongson/binutils-gdb/tree/upstream_v3.1 https://github.com/loongson/gcc/tree/loongarch_upstream_v6.3 https://github.com/loongson/glibc/tree/loongarch_2_35_dev_v2.2 Loongson and LoongArch documentations: https://github.com/loongson/LoongArch-Documentation LoongArch-specific interrupt controllers: https://mantis.uefi.org/mantis/view.php?id=2203 https://mantis.uefi.org/mantis/view.php?id=2313" Link: https://lore.kernel.org/lkml/20220603072053.35005-1-chenhuacai@loongson.cn/ * tag 'loongarch-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (24 commits) MAINTAINERS: Add maintainer information for LoongArch LoongArch: Add Loongson-3 default config file LoongArch: Add Non-Uniform Memory Access (NUMA) support LoongArch: Add multi-processor (SMP) support LoongArch: Add VDSO and VSYSCALL support LoongArch: Add some library functions LoongArch: Add misc common routines LoongArch: Add ELF and module support LoongArch: Add signal handling support LoongArch: Add system call support LoongArch: Add memory management LoongArch: Add process management LoongArch: Add exception/interrupt handling LoongArch: Add boot and setup routines LoongArch: Add other common headers LoongArch: Add atomic/locking headers LoongArch: Add CPU definition headers LoongArch: Add build infrastructure LoongArch: Add writecombine support for drm LoongArch: Add ELF-related definitions ...
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