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-rw-r--r--include/asm-powerpc/a.out.h19
-rw-r--r--include/asm-powerpc/page.h2
-rw-r--r--include/asm-powerpc/pgalloc-32.h6
-rw-r--r--include/asm-powerpc/pgalloc-64.h27
-rw-r--r--include/asm-powerpc/posix_types.h5
-rw-r--r--include/asm-powerpc/processor.h19
6 files changed, 47 insertions, 31 deletions
diff --git a/include/asm-powerpc/a.out.h b/include/asm-powerpc/a.out.h
index 5c5ea83f9349..89cead6b176e 100644
--- a/include/asm-powerpc/a.out.h
+++ b/include/asm-powerpc/a.out.h
@@ -17,23 +17,4 @@ struct exec
#define N_DRSIZE(a) ((a).a_drsize)
#define N_SYMSIZE(a) ((a).a_syms)
-#ifdef __KERNEL__
-#ifdef __powerpc64__
-
-#define STACK_TOP_USER64 TASK_SIZE_USER64
-#define STACK_TOP_USER32 TASK_SIZE_USER32
-
-#define STACK_TOP (test_thread_flag(TIF_32BIT) ? \
- STACK_TOP_USER32 : STACK_TOP_USER64)
-
-#define STACK_TOP_MAX STACK_TOP_USER64
-
-#else /* __powerpc64__ */
-
-#define STACK_TOP TASK_SIZE
-#define STACK_TOP_MAX STACK_TOP
-
-#endif /* __powerpc64__ */
-#endif /* __KERNEL__ */
-
#endif /* _ASM_POWERPC_A_OUT_H */
diff --git a/include/asm-powerpc/page.h b/include/asm-powerpc/page.h
index 61e3725bbd37..df47bbb6ea13 100644
--- a/include/asm-powerpc/page.h
+++ b/include/asm-powerpc/page.h
@@ -190,6 +190,8 @@ extern int page_is_ram(unsigned long pfn);
struct vm_area_struct;
+typedef struct page *pgtable_t;
+
#include <asm-generic/memory_model.h>
#endif /* __ASSEMBLY__ */
diff --git a/include/asm-powerpc/pgalloc-32.h b/include/asm-powerpc/pgalloc-32.h
index c162a4c37b39..58c07147b3ea 100644
--- a/include/asm-powerpc/pgalloc-32.h
+++ b/include/asm-powerpc/pgalloc-32.h
@@ -22,17 +22,19 @@ extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
(pmd_val(*(pmd)) = __pa(pte) | _PMD_PRESENT)
#define pmd_populate(mm, pmd, pte) \
(pmd_val(*(pmd)) = (page_to_pfn(pte) << PAGE_SHIFT) | _PMD_PRESENT)
+#define pmd_pgtable(pmd) pmd_page(pmd)
#else
#define pmd_populate_kernel(mm, pmd, pte) \
(pmd_val(*(pmd)) = (unsigned long)pte | _PMD_PRESENT)
#define pmd_populate(mm, pmd, pte) \
(pmd_val(*(pmd)) = (unsigned long)lowmem_page_address(pte) | _PMD_PRESENT)
+#define pmd_pgtable(pmd) pmd_page(pmd)
#endif
extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
-extern struct page *pte_alloc_one(struct mm_struct *mm, unsigned long addr);
+extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
extern void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
-extern void pte_free(struct mm_struct *mm, struct page *pte);
+extern void pte_free(struct mm_struct *mm, pgtable_t pte);
#define __pte_free_tlb(tlb, pte) pte_free((tlb)->mm, (pte))
diff --git a/include/asm-powerpc/pgalloc-64.h b/include/asm-powerpc/pgalloc-64.h
index 5afae8593931..68980990f62a 100644
--- a/include/asm-powerpc/pgalloc-64.h
+++ b/include/asm-powerpc/pgalloc-64.h
@@ -58,6 +58,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
#define pmd_populate(mm, pmd, pte_page) \
pmd_populate_kernel(mm, pmd, page_address(pte_page))
#define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, (unsigned long)(pte))
+#define pmd_pgtable(pmd) pmd_page(pmd)
#else /* CONFIG_PPC_64K_PAGES */
@@ -72,6 +73,7 @@ static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
#define pmd_populate(mm, pmd, pte_page) \
pmd_populate_kernel(mm, pmd, page_address(pte_page))
+#define pmd_pgtable(pmd) pmd_page(pmd)
#endif /* CONFIG_PPC_64K_PAGES */
@@ -92,11 +94,18 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
}
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
- unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
+ unsigned long address)
{
- pte_t *pte = pte_alloc_one_kernel(mm, address);
- return pte ? virt_to_page(pte) : NULL;
+ struct page *page;
+ pte_t *pte;
+
+ pte = pte_alloc_one_kernel(mm, address);
+ if (!pte)
+ return NULL;
+ page = virt_to_page(pte);
+ pgtable_page_ctor(page);
+ return page;
}
static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
@@ -104,8 +113,9 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
free_page((unsigned long)pte);
}
-static inline void pte_free(struct mm_struct *mm, struct page *ptepage)
+static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
{
+ pgtable_page_dtor(ptepage);
__free_page(ptepage);
}
@@ -136,9 +146,12 @@ static inline void pgtable_free(pgtable_free_t pgf)
extern void pgtable_free_tlb(struct mmu_gather *tlb, pgtable_free_t pgf);
-#define __pte_free_tlb(tlb, ptepage) \
+#define __pte_free_tlb(tlb,ptepage) \
+do { \
+ pgtable_page_dtor(ptepage); \
pgtable_free_tlb(tlb, pgtable_free_cache(page_address(ptepage), \
- PTE_NONCACHE_NUM, PTE_TABLE_SIZE-1))
+ PTE_NONCACHE_NUM, PTE_TABLE_SIZE-1)); \
+} while (0)
#define __pmd_free_tlb(tlb, pmd) \
pgtable_free_tlb(tlb, pgtable_free_cache(pmd, \
PMD_CACHE_NUM, PMD_TABLE_SIZE-1))
diff --git a/include/asm-powerpc/posix_types.h b/include/asm-powerpc/posix_types.h
index 2f2288f520be..c4e396b540df 100644
--- a/include/asm-powerpc/posix_types.h
+++ b/include/asm-powerpc/posix_types.h
@@ -64,8 +64,7 @@ typedef struct {
#else /* __GNUC__ */
-#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) \
- || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 0)
+#if defined(__KERNEL__)
/* With GNU C, use inline functions instead so args are evaluated only once: */
#undef __FD_SET
@@ -124,6 +123,6 @@ static __inline__ void __FD_ZERO(__kernel_fd_set *p)
}
}
-#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
+#endif /* defined(__KERNEL__) */
#endif /* __GNUC__ */
#endif /* _ASM_POWERPC_POSIX_TYPES_H */
diff --git a/include/asm-powerpc/processor.h b/include/asm-powerpc/processor.h
index 1f4765d6546f..fd98ca998b4f 100644
--- a/include/asm-powerpc/processor.h
+++ b/include/asm-powerpc/processor.h
@@ -113,6 +113,25 @@ extern struct task_struct *last_task_used_spe;
TASK_UNMAPPED_BASE_USER32 : TASK_UNMAPPED_BASE_USER64 )
#endif
+#ifdef __KERNEL__
+#ifdef __powerpc64__
+
+#define STACK_TOP_USER64 TASK_SIZE_USER64
+#define STACK_TOP_USER32 TASK_SIZE_USER32
+
+#define STACK_TOP (test_thread_flag(TIF_32BIT) ? \
+ STACK_TOP_USER32 : STACK_TOP_USER64)
+
+#define STACK_TOP_MAX STACK_TOP_USER64
+
+#else /* __powerpc64__ */
+
+#define STACK_TOP TASK_SIZE
+#define STACK_TOP_MAX STACK_TOP
+
+#endif /* __powerpc64__ */
+#endif /* __KERNEL__ */
+
typedef struct {
unsigned long seg;
} mm_segment_t;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.