diff options
Diffstat (limited to 'libc/kernel/common/linux/nodemask.h')
-rw-r--r-- | libc/kernel/common/linux/nodemask.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/libc/kernel/common/linux/nodemask.h b/libc/kernel/common/linux/nodemask.h new file mode 100644 index 0000000..4ec8632 --- /dev/null +++ b/libc/kernel/common/linux/nodemask.h @@ -0,0 +1,89 @@ +/**************************************************************************** + **************************************************************************** + *** + *** This header was automatically generated from a Linux kernel header + *** of the same name, to make information necessary for userspace to + *** call into the kernel available to libc. It contains only constants, + *** structures, and macros generated from the original header, and thus, + *** contains no copyrightable information. + *** + **************************************************************************** + ****************************************************************************/ +#ifndef __LINUX_NODEMASK_H +#define __LINUX_NODEMASK_H + +#include <linux/kernel.h> +#include <linux/threads.h> +#include <linux/bitmap.h> +#include <linux/numa.h> + +typedef struct { DECLARE_BITMAP(bits, MAX_NUMNODES); } nodemask_t; + +#define node_set(node, dst) __node_set((node), &(dst)) +#define node_clear(node, dst) __node_clear((node), &(dst)) +#define nodes_setall(dst) __nodes_setall(&(dst), MAX_NUMNODES) +#define nodes_clear(dst) __nodes_clear(&(dst), MAX_NUMNODES) +#define node_isset(node, nodemask) test_bit((node), (nodemask).bits) +#define node_test_and_set(node, nodemask) __node_test_and_set((node), &(nodemask)) +#define nodes_and(dst, src1, src2) __nodes_and(&(dst), &(src1), &(src2), MAX_NUMNODES) +#define nodes_or(dst, src1, src2) __nodes_or(&(dst), &(src1), &(src2), MAX_NUMNODES) +#define nodes_xor(dst, src1, src2) __nodes_xor(&(dst), &(src1), &(src2), MAX_NUMNODES) +#define nodes_andnot(dst, src1, src2) __nodes_andnot(&(dst), &(src1), &(src2), MAX_NUMNODES) +#define nodes_complement(dst, src) __nodes_complement(&(dst), &(src), MAX_NUMNODES) +#define nodes_equal(src1, src2) __nodes_equal(&(src1), &(src2), MAX_NUMNODES) +#define nodes_intersects(src1, src2) __nodes_intersects(&(src1), &(src2), MAX_NUMNODES) +#define nodes_subset(src1, src2) __nodes_subset(&(src1), &(src2), MAX_NUMNODES) +#define nodes_empty(src) __nodes_empty(&(src), MAX_NUMNODES) +#define nodes_full(nodemask) __nodes_full(&(nodemask), MAX_NUMNODES) +#define nodes_weight(nodemask) __nodes_weight(&(nodemask), MAX_NUMNODES) +#define nodes_shift_right(dst, src, n) __nodes_shift_right(&(dst), &(src), (n), MAX_NUMNODES) +#define nodes_shift_left(dst, src, n) __nodes_shift_left(&(dst), &(src), (n), MAX_NUMNODES) +#define first_node(src) __first_node(&(src)) +#define next_node(n, src) __next_node((n), &(src)) +#define nodemask_of_node(node) ({ typeof(_unused_nodemask_arg_) m; if (sizeof(m) == sizeof(unsigned long)) { m.bits[0] = 1UL<<(node); } else { nodes_clear(m); node_set((node), m); } m; }) +#define first_unset_node(mask) __first_unset_node(&(mask)) +#define NODE_MASK_LAST_WORD BITMAP_LAST_WORD_MASK(MAX_NUMNODES) +#if MAX_NUMNODES <= BITS_PER_LONG +#define NODE_MASK_ALL ((nodemask_t) { { [BITS_TO_LONGS(MAX_NUMNODES)-1] = NODE_MASK_LAST_WORD } }) +#else +#define NODE_MASK_ALL ((nodemask_t) { { [0 ... BITS_TO_LONGS(MAX_NUMNODES)-2] = ~0UL, [BITS_TO_LONGS(MAX_NUMNODES)-1] = NODE_MASK_LAST_WORD } }) +#endif +#define NODE_MASK_NONE ((nodemask_t) { { [0 ... BITS_TO_LONGS(MAX_NUMNODES)-1] = 0UL } }) +#define nodes_addr(src) ((src).bits) +#define nodemask_scnprintf(buf, len, src) __nodemask_scnprintf((buf), (len), &(src), MAX_NUMNODES) +#define nodemask_parse(ubuf, ulen, dst) __nodemask_parse((ubuf), (ulen), &(dst), MAX_NUMNODES) +#define nodelist_scnprintf(buf, len, src) __nodelist_scnprintf((buf), (len), &(src), MAX_NUMNODES) +#define nodelist_parse(buf, dst) __nodelist_parse((buf), &(dst), MAX_NUMNODES) +#define node_remap(oldbit, old, new) __node_remap((oldbit), &(old), &(new), MAX_NUMNODES) +#define nodes_remap(dst, src, old, new) __nodes_remap(&(dst), &(src), &(old), &(new), MAX_NUMNODES) +#if MAX_NUMNODES > 1 +#define for_each_node_mask(node, mask) for ((node) = first_node(mask); (node) < MAX_NUMNODES; (node) = next_node((node), (mask))) +#else +#define for_each_node_mask(node, mask) if (!nodes_empty(mask)) for ((node) = 0; (node) < 1; (node)++) +#endif + +#if MAX_NUMNODES > 1 +#define num_online_nodes() nodes_weight(node_online_map) +#define num_possible_nodes() nodes_weight(node_possible_map) +#define node_online(node) node_isset((node), node_online_map) +#define node_possible(node) node_isset((node), node_possible_map) +#define first_online_node first_node(node_online_map) +#define next_online_node(nid) next_node((nid), node_online_map) +#else +#define num_online_nodes() 1 +#define num_possible_nodes() 1 +#define node_online(node) ((node) == 0) +#define node_possible(node) ((node) == 0) +#define first_online_node 0 +#define next_online_node(nid) (MAX_NUMNODES) +#endif + +#define any_online_node(mask) ({ int node; for_each_node_mask(node, (mask)) if (node_online(node)) break; node; }) + +#define node_set_online(node) set_bit((node), node_online_map.bits) +#define node_set_offline(node) clear_bit((node), node_online_map.bits) + +#define for_each_node(node) for_each_node_mask((node), node_possible_map) +#define for_each_online_node(node) for_each_node_mask((node), node_online_map) + +#endif |