X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvppinfra%2Fpmalloc.c;h=b92dbf35d92458d49bfe5d4dd0d04031f3d73c61;hb=d4e109138;hp=ce78ca00334fbe2baf0705763fda9db75900eeee;hpb=801c7016ad90e5f5618f523b3f9284daee0b696c;p=vpp.git diff --git a/src/vppinfra/pmalloc.c b/src/vppinfra/pmalloc.c index ce78ca00334..b92dbf35d92 100644 --- a/src/vppinfra/pmalloc.c +++ b/src/vppinfra/pmalloc.c @@ -60,22 +60,20 @@ pmalloc_validate_numa_node (u32 * numa_node) return 0; } -int +__clib_export int clib_pmalloc_init (clib_pmalloc_main_t * pm, uword base_addr, uword size) { - uword off, pagesize; + uword base, pagesize; u64 *pt = 0; - int mmap_flags; ASSERT (pm->error == 0); pagesize = clib_mem_get_default_hugepage_size (); pm->def_log2_page_sz = min_log2 (pagesize); - pm->sys_log2_page_sz = min_log2 (sysconf (_SC_PAGESIZE)); pm->lookup_log2_page_sz = pm->def_log2_page_sz; /* check if pagemap is accessible */ - pt = clib_mem_vm_get_paddr (&pt, pm->sys_log2_page_sz, 1); + pt = clib_mem_vm_get_paddr (&pt, CLIB_MEM_PAGE_SZ_DEFAULT, 1); if (pt == 0 || pt[0] == 0) pm->flags |= CLIB_PMALLOC_F_NO_PAGEMAP; @@ -84,32 +82,16 @@ clib_pmalloc_init (clib_pmalloc_main_t * pm, uword base_addr, uword size) pm->max_pages = size >> pm->def_log2_page_sz; - /* reserve VA space for future growth */ - mmap_flags = MAP_PRIVATE | MAP_ANONYMOUS; + base = clib_mem_vm_reserve (base_addr, size, pm->def_log2_page_sz); - if (base_addr) - mmap_flags |= MAP_FIXED; - - pm->base = mmap (uword_to_pointer (base_addr, void *), size + pagesize, - PROT_NONE, mmap_flags, -1, 0); - - if (pm->base == MAP_FAILED) + if (base == ~0) { - pm->error = clib_error_return_unix (0, "failed to reserve %u pages"); + pm->error = clib_error_return (0, "failed to reserve %u pages", + pm->max_pages); return -1; } - off = round_pow2 (pointer_to_uword (pm->base), pagesize) - - pointer_to_uword (pm->base); - - /* trim start and end of reservation to be page aligned */ - if (off) - { - munmap (pm->base, off); - pm->base += off; - } - - munmap (pm->base + ((uword) pm->max_pages * pagesize), pagesize - off); + pm->base = uword_to_pointer (base, void *); return 0; } @@ -240,12 +222,12 @@ pmalloc_update_lookup_table (clib_pmalloc_main_t * pm, u32 first, u32 count) { va = pointer_to_uword (pm->base) + (p << pm->lookup_log2_page_sz); pa = 0; - seek = (va >> pm->sys_log2_page_sz) * sizeof (pa); + seek = (va >> clib_mem_get_log2_page_size ()) * sizeof (pa); if (fd != -1 && lseek (fd, seek, SEEK_SET) == seek && read (fd, &pa, sizeof (pa)) == (sizeof (pa)) && pa & (1ULL << 63) /* page present bit */ ) { - pa = (pa & pow2_mask (55)) << pm->sys_log2_page_sz; + pa = (pa & pow2_mask (55)) << clib_mem_get_log2_page_size (); } pm->lookup_table[p] = va - pa; p++; @@ -275,7 +257,7 @@ pmalloc_map_pages (clib_pmalloc_main_t * pm, clib_pmalloc_arena_t * a, return 0; } - if (a->log2_subpage_sz != pm->sys_log2_page_sz) + if (a->log2_subpage_sz != clib_mem_get_log2_page_size ()) { pm->error = clib_sysfs_prealloc_hugepages (numa_node, a->log2_subpage_sz, n_pages); @@ -306,10 +288,7 @@ pmalloc_map_pages (clib_pmalloc_main_t * pm, clib_pmalloc_arena_t * a, if (a->flags & CLIB_PMALLOC_ARENA_F_SHARED_MEM) { mmap_flags |= MAP_SHARED; - if (a->log2_subpage_sz != pm->sys_log2_page_sz) - pm->error = clib_mem_create_hugetlb_fd ((char *) a->name, &a->fd); - else - pm->error = clib_mem_create_fd ((char *) a->name, &a->fd); + a->fd = clib_mem_vm_create_fd (a->log2_subpage_sz, "%s", a->name); if (a->fd == -1) goto error; if ((ftruncate (a->fd, size)) == -1) @@ -317,7 +296,7 @@ pmalloc_map_pages (clib_pmalloc_main_t * pm, clib_pmalloc_arena_t * a, } else { - if (a->log2_subpage_sz != pm->sys_log2_page_sz) + if (a->log2_subpage_sz != clib_mem_get_log2_page_size ()) mmap_flags |= MAP_HUGETLB; mmap_flags |= MAP_PRIVATE | MAP_ANONYMOUS; @@ -331,10 +310,12 @@ pmalloc_map_pages (clib_pmalloc_main_t * pm, clib_pmalloc_arena_t * a, pm->error = clib_error_return_unix (0, "failed to mmap %u pages at %p " "fd %d numa %d flags 0x%x", n_pages, va, a->fd, numa_node, mmap_flags); + va = MAP_FAILED; goto error; } - if (a->log2_subpage_sz != pm->sys_log2_page_sz && mlock (va, size) != 0) + if (a->log2_subpage_sz != clib_mem_get_log2_page_size () && + mlock (va, size) != 0) { pm->error = clib_error_return_unix (0, "Unable to lock pages"); goto error; @@ -401,7 +382,7 @@ error: return 0; } -void * +__clib_export void * clib_pmalloc_create_shared_arena (clib_pmalloc_main_t * pm, char *name, uword size, u32 log2_page_sz, u32 numa_node) { @@ -414,7 +395,7 @@ clib_pmalloc_create_shared_arena (clib_pmalloc_main_t * pm, char *name, if (log2_page_sz == 0) log2_page_sz = pm->def_log2_page_sz; else if (log2_page_sz != pm->def_log2_page_sz && - log2_page_sz != pm->sys_log2_page_sz) + log2_page_sz != clib_mem_get_log2_page_size ()) { pm->error = clib_error_create ("unsupported page size (%uKB)", 1 << (log2_page_sz - 10)); @@ -503,7 +484,7 @@ clib_pmalloc_alloc_inline (clib_pmalloc_main_t * pm, clib_pmalloc_arena_t * a, return 0; } -void * +__clib_export void * clib_pmalloc_alloc_aligned_on_numa (clib_pmalloc_main_t * pm, uword size, uword align, u32 numa_node) { @@ -547,7 +528,7 @@ pmalloc_chunks_mergeable (clib_pmalloc_arena_t * a, clib_pmalloc_page_t * pp, return 1; } -void +__clib_export void clib_pmalloc_free (clib_pmalloc_main_t * pm, void *va) { clib_pmalloc_page_t *pp; @@ -599,24 +580,6 @@ clib_pmalloc_free (clib_pmalloc_main_t * pm, void *va) } } -static u8 * -format_log2_page_size (u8 * s, va_list * va) -{ - u32 log2_page_sz = va_arg (*va, u32); - - if (log2_page_sz >= 30) - return format (s, "%uGB", 1 << (log2_page_sz - 30)); - - if (log2_page_sz >= 20) - return format (s, "%uMB", 1 << (log2_page_sz - 20)); - - if (log2_page_sz >= 10) - return format (s, "%uKB", 1 << (log2_page_sz - 10)); - - return format (s, "%uB", 1 << log2_page_sz); -} - - static u8 * format_pmalloc_page (u8 * s, va_list * va) { @@ -654,7 +617,7 @@ format_pmalloc_page (u8 * s, va_list * va) return s; } -u8 * +__clib_export u8 * format_pmalloc (u8 * s, va_list * va) { clib_pmalloc_main_t *pm = va_arg (*va, clib_pmalloc_main_t *); @@ -702,7 +665,7 @@ format_pmalloc (u8 * s, va_list * va) return s; } -u8 * +__clib_export u8 * format_pmalloc_map (u8 * s, va_list * va) { clib_pmalloc_main_t *pm = va_arg (*va, clib_pmalloc_main_t *);