On 02/11/2024 01:07, Samuel Holland wrote:
The two existing definitions are equivalent because _PAGE_MTMASK is
defined as 0 on riscv32.
Signed-off-by: Samuel Holland <samuel.holland@xxxxxxxxxx>
---
arch/riscv/include/asm/pgtable-32.h | 5 -----
arch/riscv/include/asm/pgtable-64.h | 7 -------
arch/riscv/include/asm/pgtable.h | 6 ++++++
3 files changed, 6 insertions(+), 12 deletions(-)
diff --git a/arch/riscv/include/asm/pgtable-32.h b/arch/riscv/include/asm/pgtable-32.h
index 23137347dc15..7dc0751d67dc 100644
--- a/arch/riscv/include/asm/pgtable-32.h
+++ b/arch/riscv/include/asm/pgtable-32.h
@@ -28,11 +28,6 @@
#define _PAGE_IO 0
#define _PAGE_MTMASK 0
-/* Set of bits to preserve across pte_modify() */
-#define _PAGE_CHG_MASK (~(unsigned long)(_PAGE_PRESENT | _PAGE_READ | \
- _PAGE_WRITE | _PAGE_EXEC | \
- _PAGE_USER | _PAGE_GLOBAL))
-
#define pud_pfn(pud) (pmd_pfn((pmd_t){ pud }))
#define p4d_pfn(p4d) (pud_pfn((pud_t){ p4d }))
#define pgd_pfn(pgd) (p4d_pfn((p4d_t){ pgd }))
diff --git a/arch/riscv/include/asm/pgtable-64.h b/arch/riscv/include/asm/pgtable-64.h
index 33e7ff049c4a..4ba88592b8d1 100644
--- a/arch/riscv/include/asm/pgtable-64.h
+++ b/arch/riscv/include/asm/pgtable-64.h
@@ -66,7 +66,6 @@ typedef struct {
#define pmd_val(x) ((x).pmd)
#define __pmd(x) ((pmd_t) { (x) })
-
#define PTRS_PER_PMD (PAGE_SIZE / sizeof(pmd_t))
/*
@@ -166,12 +165,6 @@ static inline u64 riscv_page_io(void)
#define _PAGE_IO riscv_page_io()
#define _PAGE_MTMASK riscv_page_mtmask()
-/* Set of bits to preserve across pte_modify() */
-#define _PAGE_CHG_MASK (~(unsigned long)(_PAGE_PRESENT | _PAGE_READ | \
- _PAGE_WRITE | _PAGE_EXEC | \
- _PAGE_USER | _PAGE_GLOBAL | \
- _PAGE_MTMASK))
-
static inline int pud_present(pud_t pud)
{
return (pud_val(pud) & _PAGE_PRESENT);
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 3e0e1177107d..afa0b455eaa4 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -201,6 +201,12 @@ extern struct pt_alloc_ops pt_ops __meminitdata;
#define _PAGE_IOREMAP ((_PAGE_KERNEL & ~_PAGE_MTMASK) | _PAGE_IO)
#define PAGE_KERNEL_IO __pgprot(_PAGE_IOREMAP)
+/* Set of bits to preserve across pte_modify() */
+#define _PAGE_CHG_MASK (~(unsigned long)(_PAGE_PRESENT | _PAGE_READ | \
+ _PAGE_WRITE | _PAGE_EXEC | \
+ _PAGE_USER | _PAGE_GLOBAL | \
+ _PAGE_MTMASK))
+
extern pgd_t swapper_pg_dir[];
extern pgd_t trampoline_pg_dir[];
extern pgd_t early_pg_dir[];
Nice clean up too, you can add:
Reviewed-by: Alexandre Ghiti <alexghiti@xxxxxxxxxxxx>
Thanks,
Alex
