blackbird-op-linux/arch/mips/loongson64, branch master

Merge tag 'mips_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

2020-01-31T19:28:31+00:00

Pull MIPS changes from Paul Burton: "Nothing too big or scary in here: - Support mremap() for the VDSO, primarily to allow CRIU to restore the VDSO to its checkpointed location. - Restore the MIPS32 cBPF JIT, after having reverted the enablement of the eBPF JIT for MIPS32 systems in the 5.5 cycle. - Improve cop0 counter synchronization behaviour whilst onlining CPUs by running with interrupts disabled. - Better match FPU behaviour when emulating multiply-accumulate instructions on pre-r6 systems that implement IEEE754-2008 style MACs. - Loongson64 kernels now build using the MIPS64r2 ISA, allowing them to take advantage of instructions introduced by r2. - Support for the Ingenic X1000 SoC & the really nice little CU Neo development board that's using it. - Support for WMAC on GARDENA Smart Gateway devices. - Lots of cleanup & refactoring of SGI IP27 (Origin 2*) support in preparation for introducing IP35 (Origin 3*) support. - Various Kconfig & Makefile cleanups" * tag 'mips_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (60 commits) MIPS: PCI: Add detection of IOC3 on IO7, IO8, IO9 and Fuel MIPS: Loongson64: Disable exec hazard MIPS: Loongson64: Bump ISA level to MIPSR2 MIPS: Make DIEI support as a config option MIPS: OCTEON: octeon-irq: fix spelling mistake "to" -> "too" MIPS: asm: local: add barriers for Loongson MIPS: Loongson64: Select mac2008 only feature MIPS: Add MAC2008 Support Revert "MIPS: Add custom serial.h with BASE_BAUD override for generic kernel" MIPS: sort MIPS and MIPS_GENERIC Kconfig selects alphabetically (again) MIPS: make CPU_HAS_LOAD_STORE_LR opt-out MIPS: generic: don't unconditionally select PINCTRL MIPS: don't explicitly select LIBFDT in Kconfig MIPS: sync-r4k: do slave counter synchronization with disabled HW interrupts MIPS: SGI-IP30: Check for valid pointer before using it MIPS: syscalls: fix indentation of the 'SYSNR' message MIPS: boot: fix typo in 'vmlinux.lzma.its' target MIPS: fix indentation of the 'RELOCS' message dt-bindings: Document loongson vendor-prefix MIPS: CU1000-Neo: Refresh defconfig to support HWMON and WiFi. ...

MIPS: Loongson: Fix potential NULL dereference in loongson3_platform_init()

2020-01-10T22:10:24+00:00

If kzalloc fails, it should return -ENOMEM, otherwise may trigger a NULL pointer dereference. Fixes: 3adeb2566b9b ("MIPS: Loongson: Improve LEFI firmware interface") Signed-off-by: Tiezhu Yang Signed-off-by: Paul Burton Cc: Ralf Baechle Cc: Huacai Chen Cc: Jiaxun Yang Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org

MIPS: Loongson64: Fix node_distance()

2020-01-09T17:54:29+00:00

Local node distance is defined as LOCAL_DISTANCE, which is 10. Use the define to give back correct local distance. Signed-off-by: Thomas Bogendoerfer Signed-off-by: Paul Burton Cc: Huacai Chen Cc: Jiaxun Yang Cc: Ralf Baechle Cc: James Hogan Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org

remove ioremap_nocache and devm_ioremap_nocache

2020-01-06T08:45:59+00:00

ioremap has provided non-cached semantics by default since the Linux 2.6 days, so remove the additional ioremap_nocache interface. Signed-off-by: Christoph Hellwig Acked-by: Arnd Bergmann

MIPS: Loongson64: Drop setup_pcimap

2019-11-11T18:45:01+00:00

setup_pcimap is used to setup address windows for Loongson-3 built-in PCI-X controller, but this function is never been used in the real world and lack of support in kernel. Signed-off-by: Jiaxun Yang Signed-off-by: Paul Burton Cc: linux-mips@vger.kernel.org Cc: chenhe@lemote.com

MIPS: Loongson{2ef, 32, 64} convert to generic fw cmdline

2019-11-11T18:44:56+00:00

All of Loongson firmwares are passing boot cmdline/env in the manner of YAMON/PMON. Thus we can remove duplicated cmdline initialize code and convert to generic fw method. Signed-off-by: Jiaxun Yang Signed-off-by: Paul Burton Cc: linux-mips@vger.kernel.org Cc: chenhe@lemote.com

MIPS: Loongson: Unify LOONGSON3/LOONGSON64 Kconfig usage

2019-11-11T18:43:54+00:00

There are mixed LOONGSON3/LOONGSON64 usages in recently changes, let's establish some rules: 1, In Kconfig symbols, we only use CPU_LOONGSON64, MACH_LOONGSON64 and SYS_HAS_CPU_LOONGSON64, all other derived symbols use "LOONGSON3" since they all not widely-used symbols and sometimes not suitable for all 64-bit Loongson processors. E.g., we use symbols LOONGSON3_ENHANCEMENT, CPU_LOONGSON3_WORKAROUNDS, etc. 2, Hide GSx64/GSx64E in Kconfig title since it is not useful for general users. However, in the full description we use a more detailed manner. E.g., GS264/GS464/GS464E/GS464V. All Kconfig titles and descriptions of Loongson processors and machines have also been updated in this patch for consistency. Signed-off-by: Huacai Chen Signed-off-by: Paul Burton Cc: Ralf Baechle Cc: James Hogan Cc: Paul Burton Cc: linux-mips@linux-mips.org Cc: linux-mips@vger.kernel.org Cc: Fuxin Zhang Cc: Zhangjin Wu Cc: Huacai Chen

Merge tag 'mips_fixes_5.4_3' into mips-next

2019-11-01T21:36:44+00:00

Pull in mips-fixes primarily to gain build fixes in order to allow better testing of mips-next. A few MIPS fixes: - Fix VDSO time-related function behavior for systems where we need to fall back to syscalls, but were instead returning bogus results. - A fix to TLB exception handlers for Cavium Octeon systems where they would inadvertently clobber the $1/$at register. - A build fix for bcm63xx configurations. - Switch to using my @kernel.org email address. Signed-off-by: Paul Burton

MIPS: Loongson64: Move files to the top-level directory

2019-11-01T21:31:28+00:00

Current Loongson-3 code can share among all Loongson64 processors. Signed-off-by: Jiaxun Yang Signed-off-by: Paul Burton Cc: linux-mips@vger.kernel.org Cc: chenhc@lemote.com Cc: paul.burton@mips.com

MIPS: Loongson64: Cleanup unused code

2019-11-01T21:31:28+00:00

Clean up legacy code after stripping out Loongson2ef code. Signed-off-by: Jiaxun Yang Signed-off-by: Paul Burton Cc: linux-mips@vger.kernel.org Cc: paul.burton@mips.com