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x86/mm: Remove unused CR3_HW_ASID_BITS

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Commit 6fd166aae7 ("x86/mm: Use/Fix PCID to optimize user/kernel
switches") removed the last usage of CR3_HW_ASID_BITS and opted to use
X86_CR3_PCID_BITS instead. Remove CR3_HW_ASID_BITS.

Signed-off-by: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240425215951.2310105-1-yosryahmed@google.com
This commit is contained in:
Yosry Ahmed 2024-04-25 21:59:51 +00:00 committed by Thomas Gleixner
parent 830a0d1294
commit 4276a0bb62
1 changed files with 0 additions and 3 deletions
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3
arch/x86/mm/tlb.c
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@ -86,9 +86,6 @@
*
*/
/* There are 12 bits of space for ASIDS in CR3 */
#define CR3_HW_ASID_BITS 12
/*
* When enabled, MITIGATION_PAGE_TABLE_ISOLATION consumes a single bit for
* user/kernel switches