iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

LoongArch: Fix EENTRY/MERRENTRY setting in setup_tlb_handler()

Browse Source 
setup_tlb_handler() is expected to set per-cpu exception handlers, but
it only set the TLBRENTRY successfully because of copy & paste errors,
so fix it.

Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Huacai Chen 2022-06-23 16:11:54 +08:00
parent bab1c299f3
commit 26808cebf1
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/loongarch/mm/tlb.c
View File

@ -286,10 +286,11 @@ void setup_tlb_handler(int cpu)
return;
addr = page_address(page);
pcpu_handlers[cpu] = virt_to_phys(addr);
pcpu_handlers[cpu] = (unsigned long)addr;
memcpy((void *)addr, (void *)eentry, vec_sz);
local_flush_icache_range((unsigned long)addr, (unsigned long)addr + vec_sz);
csr_write64(pcpu_handlers[cpu], LOONGARCH_CSR_TLBRENTRY);
csr_write64(pcpu_handlers[cpu], LOONGARCH_CSR_EENTRY);
csr_write64(pcpu_handlers[cpu], LOONGARCH_CSR_MERRENTRY);
csr_write64(pcpu_handlers[cpu] + 80*VECSIZE, LOONGARCH_CSR_TLBRENTRY);
}
#endif