2 Commits

Author	SHA1	Message	Date
Jisheng Zhang	6868d12e02	riscv: errata: sifive: Use SYM_*() assembly macros ... ENTRY()/END() macros are deprecated and we should make use of the new SYM_*() macros [1] for better annotation of symbols. Replace the deprecated ones with the new ones. [1] https://docs.kernel.org/core-api/asm-annotations.html Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Reviewed-By: Clément Léger <cleger@rivosinc.com> Link: https://lore.kernel.org/r/20240709160536.3690-2-jszhang@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>	2024-09-15 00:03:22 -07:00
Vincent Chen	800149a77c	riscv: sifive: Apply errata "cip-453" patch ... Add sign extension to the $badaddr before addressing the instruction page fault and instruction access fault to workaround the issue "cip-453". To avoid affecting the existing code sequence, this patch will creates two trampolines to add sign extension to the $badaddr. By the "alternative" mechanism, these two trampolines will replace the original exception handler of instruction page fault and instruction access fault in the excp_vect_table. In this case, only the specific SiFive CPU core jumps to the do_page_fault and do_trap_insn_fault through these two trampolines. Other CPUs are not affected. Signed-off-by: Vincent Chen <vincent.chen@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>	2021-04-26 08:24:57 -07:00