1 // SPDX-License-Identifier: GPL-2.0 1 // SPDX-License-Identifier: GPL-2.0
2 /* 2 /*
3 * Generate definitions needed by the preproce 3 * Generate definitions needed by the preprocessor.
4 * This code generates raw asm output which is 4 * This code generates raw asm output which is post-processed
5 * to extract and format the required data. 5 * to extract and format the required data.
6 */ 6 */
7 7
8 #define __GENERATING_BOUNDS_H 8 #define __GENERATING_BOUNDS_H
9 /* Include headers that define the enum consta 9 /* Include headers that define the enum constants of interest */
10 #include <linux/page-flags.h> 10 #include <linux/page-flags.h>
11 #include <linux/mmzone.h> 11 #include <linux/mmzone.h>
12 #include <linux/kbuild.h> 12 #include <linux/kbuild.h>
13 #include <linux/log2.h> 13 #include <linux/log2.h>
14 #include <linux/spinlock_types.h> 14 #include <linux/spinlock_types.h>
15 15
16 int main(void) 16 int main(void)
17 { 17 {
18 /* The enum constants to put into incl 18 /* The enum constants to put into include/generated/bounds.h */
19 DEFINE(NR_PAGEFLAGS, __NR_PAGEFLAGS); 19 DEFINE(NR_PAGEFLAGS, __NR_PAGEFLAGS);
20 DEFINE(MAX_NR_ZONES, __MAX_NR_ZONES); 20 DEFINE(MAX_NR_ZONES, __MAX_NR_ZONES);
21 #ifdef CONFIG_SMP 21 #ifdef CONFIG_SMP
22 DEFINE(NR_CPUS_BITS, order_base_2(CONF !! 22 DEFINE(NR_CPUS_BITS, ilog2(CONFIG_NR_CPUS));
23 #endif 23 #endif
24 DEFINE(SPINLOCK_SIZE, sizeof(spinlock_ 24 DEFINE(SPINLOCK_SIZE, sizeof(spinlock_t));
25 #ifdef CONFIG_LRU_GEN <<
26 DEFINE(LRU_GEN_WIDTH, order_base_2(MAX <<
27 DEFINE(__LRU_REFS_WIDTH, MAX_NR_TIERS <<
28 #else <<
29 DEFINE(LRU_GEN_WIDTH, 0); <<
30 DEFINE(__LRU_REFS_WIDTH, 0); <<
31 #endif <<
32 /* End of constants */ 25 /* End of constants */
33 26
34 return 0; 27 return 0;
35 } 28 }
36 29
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