[PATCH v9 4/7] powerpc: mm: Default p{m,u}d_pte implementations
From: Rohan McLure <hidden>
Date: 2023-11-30 02:56:57
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
For 32-bit systems which have no usecases for p{m,u}d_pte() prior to
page table checking, implement default stubs.
Signed-off-by: Rohan McLure <redacted>
---
v9: New patch
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 3 +++
arch/powerpc/include/asm/nohash/64/pgtable.h | 2 ++
arch/powerpc/include/asm/pgtable.h | 17 +++++++++++++++++
3 files changed, 22 insertions(+)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 8fdb7667c509..2454174b26cb 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h@@ -887,6 +887,8 @@ static inline int pud_present(pud_t pud) extern struct page *pud_page(pud_t pud); extern struct page *pmd_page(pmd_t pmd); + +#define pud_pte pud_pte static inline pte_t pud_pte(pud_t pud) { return __pte_raw(pud_raw(pud));
@@ -1043,6 +1045,7 @@ static inline void __kernel_map_pages(struct page *page, int numpages, int enabl } #endif +#define pmd_pte pmd_pte static inline pte_t pmd_pte(pmd_t pmd) { return __pte_raw(pmd_raw(pmd));
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
index f58cbebde26e..09a34fe196ae 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable.h@@ -93,6 +93,7 @@ static inline void pmd_clear(pmd_t *pmdp) *pmdp = __pmd(0); } +#define pmd_pte pmd_pte static inline pte_t pmd_pte(pmd_t pmd) { return __pte(pmd_val(pmd));
@@ -134,6 +135,7 @@ static inline pmd_t *pud_pgtable(pud_t pud) extern struct page *pud_page(pud_t pud); +#define pud_pte pud_pte static inline pte_t pud_pte(pud_t pud) { return __pte(pud_val(pud));
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index 9c0f2151f08f..d7d0f47760d3 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h@@ -233,6 +233,23 @@ static inline int pud_pfn(pud_t pud) } #endif +#ifndef pmd_pte +#define pmd_pte pmd_pte +static inline pte_t pmd_pte(pmd_t pmd) +{ + WARN_ONCE(1, "pmd: platform does not use pmd entries directly"); + return __pte(pmd_val(pmd)); +} +#endif + +#ifndef pud_pte +#define pud_pte pud_pte +static inline pte_t pud_pte(pud_t pud) +{ + WARN_ONCE(1, "pud: platform does not use pud entries directly"); + return __pte(pud_val(pud)); +} +#endif #endif /* __ASSEMBLY__ */ #endif /* _ASM_POWERPC_PGTABLE_H */
--
2.43.0