32-bit RISC-V uses folded page tables by default, so we should
follow that in the XIP-specific part of init too.
Signed-off-by: Vitaly Wool <vitaly.wool@xxxxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
---
arch/riscv/mm/init.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index fe583c2aa5a2..8c0eeaae67a3 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -481,6 +481,7 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa)
#endif
#ifdef CONFIG_XIP_KERNEL
+#ifndef __PAGETABLE_PMD_FOLDED
create_pgd_mapping(trampoline_pg_dir, XIP_VIRT_ADDR_START,
(uintptr_t)xip_pmd, PGDIR_SIZE, PAGE_TABLE);
for (va = XIP_VIRT_ADDR_START;
@@ -493,7 +494,16 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa)
create_pgd_mapping(early_pg_dir, XIP_VIRT_ADDR_START,
(uintptr_t)xip_pmd, PGDIR_SIZE, PAGE_TABLE);
-#endif
+#else
+ for (va = XIP_VIRT_ADDR_START;
+ va < XIP_VIRT_ADDR_START + xiprom_sz;
+ va += map_size) {
+ create_pgd_mapping(early_pg_dir, va,
+ xiprom + (va - XIP_VIRT_ADDR_START),
+ map_size, PAGE_KERNEL_EXEC);
+ }
+#endif /* __PAGETABLE_PMD_FOLDED */
+#endif /* CONFIG_XIP_KERNEL */
/*
* Setup early PGD covering entire kernel which will allows
--
2.29.2
