Release 4.14 arch/powerpc/include/asm/nohash/64/pgalloc.h
#ifndef _ASM_POWERPC_PGALLOC_64_H
#define _ASM_POWERPC_PGALLOC_64_H
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/slab.h>
#include <linux/cpumask.h>
#include <linux/percpu.h>
struct vmemmap_backing {
struct vmemmap_backing *list;
unsigned long phys;
unsigned long virt_addr;
};
extern struct vmemmap_backing *vmemmap_list;
/*
* Functions that deal with pagetables that could be at any level of
* the table need to be passed an "index_size" so they know how to
* handle allocation. For PTE pages (which are linked to a struct
* page for now, and drawn from the main get_free_pages() pool), the
* allocation size will be (2^index_size * sizeof(pointer)) and
* allocations are drawn from the kmem_cache in PGT_CACHE(index_size).
*
* The maximum index size needs to be big enough to allow any
* pagetable sizes we need, but small enough to fit in the low bits of
* any page table pointer. In other words all pagetables, even tiny
* ones, must be aligned to allow at least enough low 0 bits to
* contain this value. This value is also used as a mask, so it must
* be one less than a power of two.
*/
#define MAX_PGTABLE_INDEX_SIZE 0xf
extern struct kmem_cache *pgtable_cache[];
#define PGT_CACHE(shift) ({ \
BUG_ON(!(shift)); \
pgtable_cache[(shift) - 1]; \
})
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
pgtable_gfp_flags(mm, GFP_KERNEL));
}
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| David Gibson | 24 | 82.76% | 2 | 66.67% |
| Balbir Singh | 5 | 17.24% | 1 | 33.33% |
| Total | 29 | 100.00% | 3 | 100.00% |
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
kmem_cache_free(PGT_CACHE(PGD_INDEX_SIZE), pgd);
}
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| David Gibson | 21 | 80.77% | 2 | 66.67% |
| Benjamin Herrenschmidt | 5 | 19.23% | 1 | 33.33% |
| Total | 26 | 100.00% | 3 | 100.00% |
#ifndef CONFIG_PPC_64K_PAGES
#define pgd_populate(MM, PGD, PUD) pgd_set(PGD, (unsigned long)PUD)
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE),
pgtable_gfp_flags(mm, GFP_KERNEL));
}
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| Person | Tokens | Prop | Commits | CommitProp |
| David Gibson | 28 | 84.85% | 2 | 66.67% |
| Balbir Singh | 5 | 15.15% | 1 | 33.33% |
| Total | 33 | 100.00% | 3 | 100.00% |
static inline void pud_free(struct mm_struct *mm, pud_t *pud)
{
kmem_cache_free(PGT_CACHE(PUD_INDEX_SIZE), pud);
}
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| Person | Tokens | Prop | Commits | CommitProp |
| David Gibson | 21 | 80.77% | 2 | 66.67% |
| Benjamin Herrenschmidt | 5 | 19.23% | 1 | 33.33% |
| Total | 26 | 100.00% | 3 | 100.00% |
static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
pud_set(pud, (unsigned long)pmd);
}
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| David Gibson | 27 | 87.10% | 1 | 50.00% |
| Aneesh Kumar K.V | 4 | 12.90% | 1 | 50.00% |
| Total | 31 | 100.00% | 2 | 100.00% |
static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
pte_t *pte)
{
pmd_set(pmd, (unsigned long)pte);
}
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| Aneesh Kumar K.V | 25 | 80.65% | 2 | 66.67% |
| David Gibson | 6 | 19.35% | 1 | 33.33% |
| Total | 31 | 100.00% | 3 | 100.00% |
static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
pgtable_t pte_page)
{
pmd_set(pmd, (unsigned long)page_address(pte_page));
}
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| David Gibson | 6 | 18.18% | 1 | 33.33% |
| Total | 33 | 100.00% | 3 | 100.00% |
#define pmd_pgtable(pmd) pmd_page(pmd)
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address)
{
return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
}
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| David Gibson | 23 | 79.31% | 1 | 50.00% |
| Hugh Dickins | 6 | 20.69% | 1 | 50.00% |
| Total | 29 | 100.00% | 2 | 100.00% |
static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
unsigned long address)
{
struct page *page;
pte_t *pte;
pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO | __GFP_ACCOUNT);
if (!pte)
return NULL;
page = virt_to_page(pte);
if (!pgtable_page_ctor(page)) {
__free_page(page);
return NULL;
}
return page;
}
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| Martin Schwidefsky | 27 | 35.53% | 1 | 20.00% |
| David Gibson | 19 | 25.00% | 1 | 20.00% |
| Kirill A. Shutemov | 13 | 17.11% | 1 | 20.00% |
| Balbir Singh | 10 | 13.16% | 1 | 20.00% |
| Akinobu Mita | 7 | 9.21% | 1 | 20.00% |
| Total | 76 | 100.00% | 5 | 100.00% |
static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
free_page((unsigned long)pte);
}
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| Aneesh Kumar K.V | 25 | 100.00% | 1 | 100.00% |
| Total | 25 | 100.00% | 1 | 100.00% |
static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
{
pgtable_page_dtor(ptepage);
__free_page(ptepage);
}
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| Aneesh Kumar K.V | 25 | 100.00% | 1 | 100.00% |
| Total | 25 | 100.00% | 1 | 100.00% |
extern void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift);
#ifdef CONFIG_SMP
extern void __tlb_remove_table(void *_table);
#endif
static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
unsigned long address)
{
tlb_flush_pgtable(tlb, address);
pgtable_free_tlb(tlb, page_address(table), 0);
}
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| Aneesh Kumar K.V | 34 | 89.47% | 1 | 50.00% |
| Hong H. Pham | 4 | 10.53% | 1 | 50.00% |
| Total | 38 | 100.00% | 2 | 100.00% |
#else /* if CONFIG_PPC_64K_PAGES */
extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int);
extern void pte_fragment_free(unsigned long *, int);
extern void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift);
#ifdef CONFIG_SMP
extern void __tlb_remove_table(void *_table);
#endif
#define pud_populate(mm, pud, pmd) pud_set(pud, (unsigned long)pmd)
static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
pte_t *pte)
{
pmd_set(pmd, (unsigned long)pte);
}
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| Aneesh Kumar K.V | 31 | 100.00% | 2 | 100.00% |
| Total | 31 | 100.00% | 2 | 100.00% |
static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
pgtable_t pte_page)
{
pmd_set(pmd, (unsigned long)pte_page);
}
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| Total | 30 | 100.00% | 3 | 100.00% |
static inline pgtable_t pmd_pgtable(pmd_t pmd)
{
return (pgtable_t)(pmd_val(pmd) & ~PMD_MASKED_BITS);
}
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| Total | 24 | 100.00% | 3 | 100.00% |
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address)
{
return (pte_t *)pte_fragment_alloc(mm, address, 1);
}
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| Total | 31 | 100.00% | 3 | 100.00% |
static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
unsigned long address)
{
return (pgtable_t)pte_fragment_alloc(mm, address, 0);
}
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| Aneesh Kumar K.V | 29 | 100.00% | 3 | 100.00% |
| Total | 29 | 100.00% | 3 | 100.00% |
static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
pte_fragment_free((unsigned long *)pte, 1);
}
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| Aneesh Kumar K.V | 27 | 96.43% | 2 | 66.67% |
| Michael Ellerman | 1 | 3.57% | 1 | 33.33% |
| Total | 28 | 100.00% | 3 | 100.00% |
static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
{
pte_fragment_free((unsigned long *)ptepage, 0);
}
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| Total | 27 | 100.00% | 3 | 100.00% |
static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
unsigned long address)
{
tlb_flush_pgtable(tlb, address);
pgtable_free_tlb(tlb, table, 0);
}
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| Total | 35 | 100.00% | 2 | 100.00% |
#endif /* CONFIG_PPC_64K_PAGES */
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{
return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX),
pgtable_gfp_flags(mm, GFP_KERNEL));
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Aneesh Kumar K.V | 28 | 84.85% | 2 | 66.67% |
| Balbir Singh | 5 | 15.15% | 1 | 33.33% |
| Total | 33 | 100.00% | 3 | 100.00% |
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
{
kmem_cache_free(PGT_CACHE(PMD_CACHE_INDEX), pmd);
}
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| Aneesh Kumar K.V | 26 | 100.00% | 2 | 100.00% |
| Total | 26 | 100.00% | 2 | 100.00% |
#define __pmd_free_tlb(tlb, pmd, addr) \
pgtable_free_tlb(tlb, pmd, PMD_CACHE_INDEX)
#ifndef CONFIG_PPC_64K_PAGES
#define __pud_free_tlb(tlb, pud, addr) \
pgtable_free_tlb(tlb, pud, PUD_INDEX_SIZE)
#endif /* CONFIG_PPC_64K_PAGES */
#define check_pgt_cache() do { } while (0)
#endif /* _ASM_POWERPC_PGALLOC_64_H */
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| Aneesh Kumar K.V | 538 | 58.54% | 8 | 38.10% |
| David Gibson | 253 | 27.53% | 2 | 9.52% |
| Martin Schwidefsky | 34 | 3.70% | 1 | 4.76% |
| Balbir Singh | 25 | 2.72% | 1 | 4.76% |
| Mark Nelson | 18 | 1.96% | 1 | 4.76% |
| Benjamin Herrenschmidt | 14 | 1.52% | 2 | 9.52% |
| Kirill A. Shutemov | 13 | 1.41% | 1 | 4.76% |
| Akinobu Mita | 7 | 0.76% | 1 | 4.76% |
| Hugh Dickins | 6 | 0.65% | 1 | 4.76% |
| Hari Bathini | 6 | 0.65% | 1 | 4.76% |
| Hong H. Pham | 4 | 0.44% | 1 | 4.76% |
| Michael Ellerman | 1 | 0.11% | 1 | 4.76% |
| Total | 919 | 100.00% | 21 | 100.00% |
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