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author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-11-10 09:23:17 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-11-10 09:23:17 -0800 |
commit | 56d428ae1c4e27fbe02cb554b2192cd66e4df05a (patch) | |
tree | 0fa353d09d206a2206ef8861f489f50c4d80f9fe /arch/riscv/kernel/entry.S | |
parent | 656d88c3b654c0ccc0ff63aa75101c6c9f0a5300 (diff) | |
parent | 457926b253200bd9bdfae9a016a3b1d1dc661d55 (diff) | |
download | lwn-56d428ae1c4e27fbe02cb554b2192cd66e4df05a.tar.gz lwn-56d428ae1c4e27fbe02cb554b2192cd66e4df05a.zip |
Merge tag 'riscv-for-linus-6.7-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt:
- Support for handling misaligned accesses in S-mode
- Probing for misaligned access support is now properly cached and
handled in parallel
- PTDUMP now reflects the SW reserved bits, as well as the PBMT and
NAPOT extensions
- Performance improvements for TLB flushing
- Support for many new relocations in the module loader
- Various bug fixes and cleanups
* tag 'riscv-for-linus-6.7-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (51 commits)
riscv: Optimize bitops with Zbb extension
riscv: Rearrange hwcap.h and cpufeature.h
drivers: perf: Do not broadcast to other cpus when starting a counter
drivers: perf: Check find_first_bit() return value
of: property: Add fw_devlink support for msi-parent
RISC-V: Don't fail in riscv_of_parent_hartid() for disabled HARTs
riscv: Fix set_memory_XX() and set_direct_map_XX() by splitting huge linear mappings
riscv: Don't use PGD entries for the linear mapping
RISC-V: Probe misaligned access speed in parallel
RISC-V: Remove __init on unaligned_emulation_finish()
RISC-V: Show accurate per-hart isa in /proc/cpuinfo
RISC-V: Don't rely on positional structure initialization
riscv: Add tests for riscv module loading
riscv: Add remaining module relocations
riscv: Avoid unaligned access when relocating modules
riscv: split cache ops out of dma-noncoherent.c
riscv: Improve flush_tlb_kernel_range()
riscv: Make __flush_tlb_range() loop over pte instead of flushing the whole tlb
riscv: Improve flush_tlb_range() for hugetlb pages
riscv: Improve tlb_flush()
...
Diffstat (limited to 'arch/riscv/kernel/entry.S')
-rw-r--r-- | arch/riscv/kernel/entry.S | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S index 9f92c067f7e1..54ca4564a926 100644 --- a/arch/riscv/kernel/entry.S +++ b/arch/riscv/kernel/entry.S @@ -26,9 +26,9 @@ SYM_CODE_START(handle_exception) * register will contain 0, and we should continue on the current TP. */ csrrw tp, CSR_SCRATCH, tp - bnez tp, _save_context + bnez tp, .Lsave_context -_restore_kernel_tpsp: +.Lrestore_kernel_tpsp: csrr tp, CSR_SCRATCH REG_S sp, TASK_TI_KERNEL_SP(tp) @@ -40,7 +40,7 @@ _restore_kernel_tpsp: REG_L sp, TASK_TI_KERNEL_SP(tp) #endif -_save_context: +.Lsave_context: REG_S sp, TASK_TI_USER_SP(tp) REG_L sp, TASK_TI_KERNEL_SP(tp) addi sp, sp, -(PT_SIZE_ON_STACK) @@ -322,7 +322,7 @@ SYM_FUNC_END(__switch_to) .section ".rodata" .align LGREG /* Exception vector table */ -SYM_CODE_START(excp_vect_table) +SYM_DATA_START_LOCAL(excp_vect_table) RISCV_PTR do_trap_insn_misaligned ALT_INSN_FAULT(RISCV_PTR do_trap_insn_fault) RISCV_PTR do_trap_insn_illegal @@ -340,12 +340,11 @@ SYM_CODE_START(excp_vect_table) RISCV_PTR do_page_fault /* load page fault */ RISCV_PTR do_trap_unknown RISCV_PTR do_page_fault /* store page fault */ -excp_vect_table_end: -SYM_CODE_END(excp_vect_table) +SYM_DATA_END_LABEL(excp_vect_table, SYM_L_LOCAL, excp_vect_table_end) #ifndef CONFIG_MMU -SYM_CODE_START(__user_rt_sigreturn) +SYM_DATA_START(__user_rt_sigreturn) li a7, __NR_rt_sigreturn ecall -SYM_CODE_END(__user_rt_sigreturn) +SYM_DATA_END(__user_rt_sigreturn) #endif |