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riscv/mm: Fix the comment for swap pte format

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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>
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Xiao Wang 2023-09-21 22:16:52 +08:00 committed by Palmer Dabbelt
parent 8f501be87e
commit 92235d3d83
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1 changed files with 1 additions and 1 deletions
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arch/riscv/include/asm/pgtable.h
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@ -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