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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /kernel/bounds.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'kernel/bounds.c')
-rw-r--r--kernel/bounds.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/kernel/bounds.c b/kernel/bounds.c
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index 000000000..b529182e8
--- /dev/null
+++ b/kernel/bounds.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Generate definitions needed by the preprocessor.
+ * This code generates raw asm output which is post-processed
+ * to extract and format the required data.
+ */
+
+#define __GENERATING_BOUNDS_H
+/* Include headers that define the enum constants of interest */
+#include <linux/page-flags.h>
+#include <linux/mmzone.h>
+#include <linux/kbuild.h>
+#include <linux/log2.h>
+#include <linux/spinlock_types.h>
+
+int main(void)
+{
+ /* The enum constants to put into include/generated/bounds.h */
+ DEFINE(NR_PAGEFLAGS, __NR_PAGEFLAGS);
+ DEFINE(MAX_NR_ZONES, __MAX_NR_ZONES);
+#ifdef CONFIG_SMP
+ DEFINE(NR_CPUS_BITS, ilog2(CONFIG_NR_CPUS));
+#endif
+ DEFINE(SPINLOCK_SIZE, sizeof(spinlock_t));
+#ifdef CONFIG_LRU_GEN
+ DEFINE(LRU_GEN_WIDTH, order_base_2(MAX_NR_GENS + 1));
+ DEFINE(__LRU_REFS_WIDTH, MAX_NR_TIERS - 2);
+#else
+ DEFINE(LRU_GEN_WIDTH, 0);
+ DEFINE(__LRU_REFS_WIDTH, 0);
+#endif
+ /* End of constants */
+
+ return 0;
+}