forked from enlightenment/efl
evas: let's use HUGETLB when it makes sense.
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@ -113,6 +113,7 @@ static inline size_t
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_evas_common_rgba_image_surface_size(unsigned int w, unsigned int h, Eina_Bool alpha_only)
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{
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#define PAGE_SIZE (4 * 1024)
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#define HUGE_PAGE_SIZE (2 * 1024 * 1024)
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#if defined (HAVE_SYS_MMAN_H) && (!defined (_WIN32))
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# define ALIGN_TO_PAGE(Siz) (((Siz / PAGE_SIZE) + (Siz % PAGE_SIZE ? 1 : 0)) * PAGE_SIZE)
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#else
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@ -136,7 +137,7 @@ static void *
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_evas_common_rgba_image_surface_mmap(unsigned int w, unsigned int h, Eina_Bool alpha_only)
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{
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size_t siz;
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void *r;
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void *r = MAP_FAILED;
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siz = _evas_common_rgba_image_surface_size(w, h, alpha_only);
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@ -154,6 +155,7 @@ _evas_common_rgba_image_surface_mmap(unsigned int w, unsigned int h, Eina_Bool a
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# endif
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#endif
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if (siz > ((HUGE_PAGE_SIZE * 75) / 100))
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r = mmap(NULL, siz, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0);
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if (r == MAP_FAILED)
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r = mmap(NULL, siz, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
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