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