riscv/mm: Fix the comment for swap pte format

Swap type takes bits 7-11 and swap offset should start from bit 12.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/20230921141652.2657054-1-xiao.w.wang@intel.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index e05e5c8f652644c6e96a97b763132173a29d2c38..c8e8867c42f6a9127b5a67fb837dd221f214ed88 100644 (file)
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -811,7 +811,7 @@ extern pmd_t pmdp_collapse_flush(struct vm_area_struct *vma,
  *     bit            5:       _PAGE_PROT_NONE (zero)
  *     bit            6:       exclusive marker
  *     bits      7 to 11:      swap type
- *     bits 11 to XLEN-1:      swap offset
+ *     bits 12 to XLEN-1:      swap offset
  */
 #define __SWP_TYPE_SHIFT       7
 #define __SWP_TYPE_BITS                5