diff options
Diffstat (limited to 'arch/riscv/mm/physaddr.c')
| -rw-r--r-- | arch/riscv/mm/physaddr.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/arch/riscv/mm/physaddr.c b/arch/riscv/mm/physaddr.c index 19cf25a74ee2..18706f457da7 100644 --- a/arch/riscv/mm/physaddr.c +++ b/arch/riscv/mm/physaddr.c @@ -22,7 +22,7 @@ EXPORT_SYMBOL(__virt_to_phys); phys_addr_t __phys_addr_symbol(unsigned long x) { unsigned long kernel_start = kernel_map.virt_addr; - unsigned long kernel_end = (unsigned long)_end; + unsigned long kernel_end = kernel_start + kernel_map.size; /* * Boundary checking aginst the kernel image mapping. @@ -33,3 +33,19 @@ phys_addr_t __phys_addr_symbol(unsigned long x) return __va_to_pa_nodebug(x); } EXPORT_SYMBOL(__phys_addr_symbol); + +phys_addr_t linear_mapping_va_to_pa(unsigned long x) +{ + BUG_ON(!kernel_map.va_pa_offset); + + return ((unsigned long)(x) - kernel_map.va_pa_offset); +} +EXPORT_SYMBOL(linear_mapping_va_to_pa); + +void *linear_mapping_pa_to_va(unsigned long x) +{ + BUG_ON(!kernel_map.va_pa_offset); + + return ((void *)((unsigned long)(x) + kernel_map.va_pa_offset)); +} +EXPORT_SYMBOL(linear_mapping_pa_to_va); |