kernel/arch/mips/loongson2ef, branch linux-6.2.y

MIPS: Loongson2ef: remove orphan sbx00_acpi_init() declaration

2022-09-19T14:34:31Z

All uses of sbx00_acpi_init() in the "pci.c" file were removed by commit 5831fdb099dd ("MIPS: Loongson2ef: clean up loongson64 related code"), so remove the orphan declaration, too. Signed-off-by: Gaosheng Cui Signed-off-by: Thomas Bogendoerfer

MIPS: Loongson{2ef,64}: Wrap -mno-branch-likely with cc-option

2022-02-07T17:30:12Z

This flag is not supported by clang, which results in a warning: clang-14: warning: argument unused during compilation: '-mno-branch-likely' [-Wunused-command-line-argument] This breaks cc-option, which adds -Werror to make this warning fatal and catch flags that are not supported. Wrap this flag in cc-option so that it does not cause cc-option to fail, which can cause randconfigs to be really noisy, due to warnings not getting disabled that should be. Additionally, move the cc-option check to Kconfig so that the check is done at configuration time, rather than build time, as builds with no configuration change will be quicker because the cc-option call will not need to happen in those instances. Suggested-by: Nick Desaulniers Signed-off-by: Nathan Chancellor Signed-off-by: Thomas Bogendoerfer

MIPS: Loongson2ef: Remove unnecessary {as,cc}-option calls

2021-12-09T09:27:14Z

When building with LLVM's integrated assembler, the build errors because it does not implement -mfix-loongson2f-{jump,nop}: arch/mips/loongson2ef/Platform:36: *** only binutils >= 2.20.2 have needed option -mfix-loongson2f-nop. Stop. The error is a little misleading because binutils are not being used in this case. To clear this up, remove the as-option calls because binutils 2.23 is the minimum supported version for building the kernel. At the same time, remove the cc-option calls for the '-march=' flags, as GCC 5.1.0 is the minimum supported version. This change will not fix the LLVM build for CONFIG_CPU_LOONGSON2{E,F}, as it does not implement the loongson2{e,f} march arguments (nor r4600, so it will error prior to this change) nor the assembler flags mentioned above but it will make the errors more obvious. Link: https://github.com/ClangBuiltLinux/linux/issues/1529 Reported-by: Ryutaroh Matsumoto Signed-off-by: Nathan Chancellor Signed-off-by: Thomas Bogendoerfer

MIPS: loongson2ef: don't build serial.o unconditionally

2021-08-05T08:58:21Z

LOONGSON_UART_BASE depends on EARLY_PRINTK || SERIAL_8250, but when neither of these Kconfig symbols is set, the kernel build has errors: ../arch/mips/loongson2ef/common/serial.c: In function 'serial_init': ../arch/mips/loongson2ef/common/serial.c:66:25: error: 'loongson_uart_base' undeclared (first use in this function) 66 | loongson_uart_base; ../arch/mips/loongson2ef/common/serial.c:66:25: note: each undeclared identifier is reported only once for each function it appears in ../arch/mips/loongson2ef/common/serial.c:68:41: error: '_loongson_uart_base' undeclared (first use in this function) 68 | (void __iomem *)_loongson_uart_base; Fix this by building serial.o only when one (or both) of these Kconfig symbols is enabled. Tested with: (a) EARLY_PRINTK=y, SERIAL_8250 not set; (b) EARLY_PRINTK=y, SERIAL_8250=y; (c) EARLY_PRINTK=y, SERIAL_8250=m. (d) EARLY_PRINTK not set, SERIAL_8250=y; (e) EARLY_PRINTK not set, SERIAL_8250=m; (f) EARLY_PRINTK not set, SERIAL_8250 not set. Signed-off-by: Randy Dunlap Reported-by: kernel test robot Cc: Jiaxun Yang Cc: Thomas Bogendoerfer Cc: linux-mips@vger.kernel.org Signed-off-by: Thomas Bogendoerfer

Merge tag 'mips_5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

2021-02-21T21:18:26Z

Pull MIPS updates from Thomas Bogendoerfer: - added support for Nintendo N64 - added support for Realtek RTL83XX SoCs - kaslr support for Loongson64 - first steps to get rid of set_fs() - DMA runtime coherent/non-coherent selection cleanup - cleanups and fixes * tag 'mips_5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (98 commits) Revert "MIPS: Add basic support for ptrace single step" vmlinux.lds.h: catch more UBSAN symbols into .data MIPS: kernel: Drop kgdb_call_nmi_hook MAINTAINERS: Add git tree for KVM/mips MIPS: Use common way to parse elfcorehdr MIPS: Simplify EVA cache handling Revert "MIPS: kernel: {ftrace,kgdb}: Set correct address limit for cache flushes" MIPS: remove CONFIG_DMA_PERDEV_COHERENT MIPS: remove CONFIG_DMA_MAYBE_COHERENT driver core: lift dma_default_coherent into common code MIPS: refactor the runtime coherent vs noncoherent DMA indicators MIPS/alchemy: factor out the DMA coherent setup MIPS/malta: simplify plat_setup_iocoherency MIPS: Add basic support for ptrace single step MAINTAINERS: replace non-matching patterns for loongson{2,3} MIPS: Make check condition for SDBBP consistent with EJTAG spec mips: Replace lkml.org links with lore Revert "MIPS: microMIPS: Fix the judgment of mm_jr16_op and mm_jalr_op" MIPS: crash_dump.c: Simplify copy_oldmem_page() Revert "mips: Manually call fdt_init_reserved_mem() method" ...

MIPS: loongson2ef: remove function __uncached_access()

2021-01-27T20:51:15Z

We no longer need the MESA workaround, so remove it. Signed-off-by: Yanteng Si Signed-off-by: Thomas Bogendoerfer

arch: mips: Remove CONFIG_OPROFILE support

2021-01-22T06:42:26Z

The "oprofile" user-space tools don't use the kernel OPROFILE support any more, and haven't in a long time. User-space has been converted to the perf interfaces. Remove the old oprofile's architecture specific support. Suggested-by: Christoph Hellwig Suggested-by: Linus Torvalds Signed-off-by: Viresh Kumar Acked-by: Robert Richter Acked-by: William Cohen Acked-by: Al Viro Acked-by: Thomas Gleixner

MIPS: init: move externs to header file

2021-01-07T16:12:51Z

This commit fixes the following checkpatch warnings: WARNING: externs should be avoided in .c files This is a warning for placing declarations in a ".c" file. This fix removes the declaration in ".c" and adds it to the common header file. Signed-off-by: Yanteng Si Reviewed-by: Huacai Chen Signed-off-by: Thomas Bogendoerfer

MIPS: Remove empty prom_free_prom_memory functions

2021-01-07T16:11:33Z

Most of the prom_free_prom_memory functions are empty. With a new weak prom_free_prom_memory() we can remove all of them. Signed-off-by: Thomas Bogendoerfer Acked-by: Florian Fainelli

Merge tag 'mips_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

2020-10-16T19:40:55Z

Pull MIPS updates from Thomas Bogendoerfer: - removed support for PNX833x alias NXT_STB22x - included Ingenic SoC support into generic MIPS kernels - added support for new Ingenic SoCs - converted workaround selection to use Kconfig - replaced old boot mem functions by memblock_* - enabled COP2 usage in kernel for Loongson64 to make use of 16byte load/stores possible - cleanups and fixes * tag 'mips_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (92 commits) MIPS: DEC: Restore bootmem reservation for firmware working memory area MIPS: dec: fix section mismatch bcm963xx_tag.h: fix duplicated word mips: ralink: enable zboot support MIPS: ingenic: Remove CPU_SUPPORTS_HUGEPAGES MIPS: cpu-probe: remove MIPS_CPU_BP_GHIST option bit MIPS: cpu-probe: introduce exclusive R3k CPU probe MIPS: cpu-probe: move fpu probing/handling into its own file MIPS: replace add_memory_region with memblock MIPS: Loongson64: Clean up numa.c MIPS: Loongson64: Select SMP in Kconfig to avoid build error mips: octeon: Add Ubiquiti E200 and E220 boards MIPS: SGI-IP28: disable use of ll/sc in kernel MIPS: tx49xx: move tx4939_add_memory_regions into only user MIPS: pgtable: Remove used PAGE_USERIO define MIPS: alchemy: Share prom_init implementation MIPS: alchemy: Fix build breakage, if TOUCHSCREEN_WM97XX is disabled MIPS: process: include exec.h header in process.c MIPS: process: Add prototype for function arch_dup_task_struct MIPS: idle: Add prototype for function check_wait ...