diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-01-20 00:30:49 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-01-20 00:30:49 +0300 |
| commit | 24fdd5189914b36102cb51626a890a2d84501993 (patch) | |
| tree | ff79d396f2912ae4936c28c3e8fcb703f7f23393 /arch/loongarch/kernel/head.S | |
| parent | 9bc44c51a0461e099d4eb5dff86c2d72f0fb4a6c (diff) | |
| parent | 6e441fa3ac475be73c03c9a85bd305d66ea476a6 (diff) | |
| download | linux-24fdd5189914b36102cb51626a890a2d84501993.tar.xz | |
Merge tag 'loongarch-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch updates from Huacai Chen:
- Raise minimum clang version to 18.0.0
- Enable initial Rust support for LoongArch
- Add built-in dtb support for LoongArch
- Use generic interface to support crashkernel=X,[high,low]
- Some bug fixes and other small changes
- Update the default config file.
* tag 'loongarch-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (22 commits)
MAINTAINERS: Add BPF JIT for LOONGARCH entry
LoongArch: Update Loongson-3 default config file
LoongArch: BPF: Prevent out-of-bounds memory access
LoongArch: BPF: Support 64-bit pointers to kfuncs
LoongArch: Fix definition of ftrace_regs_set_instruction_pointer()
LoongArch: Use generic interface to support crashkernel=X,[high,low]
LoongArch: Fix and simplify fcsr initialization on execve()
LoongArch: Let cores_io_master cover the largest NR_CPUS
LoongArch: Change SHMLBA from SZ_64K to PAGE_SIZE
LoongArch: Add a missing call to efi_esrt_init()
LoongArch: Parsing CPU-related information from DTS
LoongArch: dts: DeviceTree for Loongson-2K2000
LoongArch: dts: DeviceTree for Loongson-2K1000
LoongArch: dts: DeviceTree for Loongson-2K0500
LoongArch: Allow device trees be built into the kernel
dt-bindings: interrupt-controller: loongson,liointc: Fix dtbs_check warning for interrupt-names
dt-bindings: interrupt-controller: loongson,liointc: Fix dtbs_check warning for reg-names
dt-bindings: loongarch: Add Loongson SoC boards compatibles
dt-bindings: loongarch: Add CPU bindings for LoongArch
LoongArch: Enable initial Rust support
...
Diffstat (limited to 'arch/loongarch/kernel/head.S')
| -rw-r--r-- | arch/loongarch/kernel/head.S | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/loongarch/kernel/head.S b/arch/loongarch/kernel/head.S index 0ecab4216392..c4f7de2e2805 100644 --- a/arch/loongarch/kernel/head.S +++ b/arch/loongarch/kernel/head.S @@ -74,6 +74,11 @@ SYM_CODE_START(kernel_entry) # kernel entry point la.pcrel t0, fw_arg2 st.d a2, t0, 0 +#ifdef CONFIG_PAGE_SIZE_4KB + li.d t0, 0 + li.d t1, CSR_STFILL + csrxchg t0, t1, LOONGARCH_CSR_IMPCTL1 +#endif /* KSave3 used for percpu base, initialized as 0 */ csrwr zero, PERCPU_BASE_KS /* GPR21 used for percpu base (runtime), initialized as 0 */ @@ -126,6 +131,11 @@ SYM_CODE_START(smpboot_entry) JUMP_VIRT_ADDR t0, t1 +#ifdef CONFIG_PAGE_SIZE_4KB + li.d t0, 0 + li.d t1, CSR_STFILL + csrxchg t0, t1, LOONGARCH_CSR_IMPCTL1 +#endif /* Enable PG */ li.w t0, 0xb0 # PLV=0, IE=0, PG=1 csrwr t0, LOONGARCH_CSR_CRMD |