[tip: x86/cpu] : Cover all possible x86 CPU cache sizes

tip-bot2 for Ahmed S. Darwish
2025-03-04T10:26:16Z

The following commit has been merged into the x86/cpu branch of tip:

Commit-ID: 4f2a0b765c9731d2fa94e209ee9ae0e96b280f17
Gitweb: https://git.kernel.org/tip/4f2a0b765c9731d2fa94e209ee9ae0e96b280f17
Author: Ahmed S. Darwish <darwi@linutronix.de>
AuthorDate: Tue, 04 Mar 2025 09:51:41 +01:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Tue, 04 Mar 2025 11:17:33 +01:00

<linux/sizes.h>: Cover all possible x86 CPU cache sizes

Add size macros for 24/192/384 Kilobytes and 3/6/12/18/24 Megabytes.

With that, the x86 subsystem can avoid locally defining its own macros
for CPU cache sizes.

Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://lore.kernel.org/r/20250304085152.51092-31-darwi@linutronix.de
---
include/linux/sizes.h | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/include/linux/sizes.h b/include/linux/sizes.h
index c3a00b9..4903949 100644
--- a/include/linux/sizes.h
+++ b/include/linux/sizes.h
@@ -23,17 +23,25 @@
#define SZ_4K 0x00001000
#define SZ_8K 0x00002000
#define SZ_16K 0x00004000
+#define SZ_24K 0x00006000
#define SZ_32K 0x00008000
#define SZ_64K 0x00010000
#define SZ_128K 0x00020000
+#define SZ_192K 0x00030000
#define SZ_256K 0x00040000
+#define SZ_384K 0x00060000
#define SZ_512K 0x00080000

#define SZ_1M 0x00100000
#define SZ_2M 0x00200000
+#define SZ_3M 0x00300000
#define SZ_4M 0x00400000
+#define SZ_6M 0x00600000
#define SZ_8M 0x00800000
+#define SZ_12M 0x00c00000
#define SZ_16M 0x01000000
+#define SZ_18M 0x01200000
+#define SZ_24M 0x01800000
#define SZ_32M 0x02000000
#define SZ_64M 0x04000000
#define SZ_128M 0x08000000