[PATCH v4 3/3] riscv: Introduce NAPOT field to PTDUMP

From: Yu Chien Peter Lin
Date: Wed Sep 20 2023 - 22:50:58 EST


This patch introduces the NAPOT field to PTDUMP, allowing it
to display the letter "N" for pages that have the 63rd bit set.

Signed-off-by: Yu Chien Peter Lin <peterlin@xxxxxxxxxxxxx>
Reviewed-by: Alexandre Ghiti <alexghiti@xxxxxxxxxxxx>
Tested-by: Alexandre Ghiti <alexghiti@xxxxxxxxxxxx>
---
Changes v1 -> v3
- no change
Changes v3 -> v4
- Include Alexandre's RB/TB-tags
---
arch/riscv/mm/ptdump.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/arch/riscv/mm/ptdump.c b/arch/riscv/mm/ptdump.c
index 13997cf3fe36..b71f08b91e53 100644
--- a/arch/riscv/mm/ptdump.c
+++ b/arch/riscv/mm/ptdump.c
@@ -136,6 +136,10 @@ struct prot_bits {
static const struct prot_bits pte_bits[] = {
{
#ifdef CONFIG_64BIT
+ .mask = _PAGE_NAPOT,
+ .set = "N",
+ .clear = ".",
+ }, {
.mask = _PAGE_MTMASK_SVPBMT,
.set = "MT(%s)",
.clear = " .. ",
--
2.34.1