[PATCH v5 28/35] x86/cpuid: Parse CPUID(0x80000005) and CPUID(0x80000006)
"Ahmed S. Darwish" <[email protected]> Fri, 5 Sep 2025 14:15:08 +0200
| Newsgroups | dev.linux.lists.x86-cpuid,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
Parse AMD cacheinfo CPUID(0x80000005) and CPUID(0x80000006), if available, using the generic CPUID parser read function cpuid_read_generic(). The x86/cacheinfo AMD CPUID(0x4)-emulation logic will be swithced next to the parsed CPUID table APIs instead of invoking direct CPUID queries. Signed-off-by: Ahmed S. Darwish <[email protected]> --- arch/x86/include/asm/cpuid/types.h | 2 ++ arch/x86/kernel/cpu/cpuid_parser.h | 2 ++ 2 files changed, 4 insertions(+) diff --git a/arch/x86/include/asm/cpuid/types.h b/arch/x86/include/asm/cpuid/types.h index 411a2a96e3ed..5a3a365044ce 100644 --- a/arch/x86/include/asm/cpuid/types.h +++ b/arch/x86/include/asm/cpuid/types.h @@ -242,6 +242,8 @@ struct cpuid_leaves { CPUID_LEAF ( 0x80000002, 0 ); CPUID_LEAF ( 0x80000003, 0 ); CPUID_LEAF ( 0x80000004, 0 ); + CPUID_LEAF ( 0x80000005, 0 ); + CPUID_LEAF ( 0x80000006, 0 ); CPUID_LEAF_N ( 0x8000001d, 8 ); }; diff --git a/arch/x86/kernel/cpu/cpuid_parser.h b/arch/x86/kernel/cpu/cpuid_parser.h index 227ffac6b297..44a056a5a321 100644 --- a/arch/x86/kernel/cpu/cpuid_parser.h +++ b/arch/x86/kernel/cpu/cpuid_parser.h @@ -145,6 +145,8 @@ struct cpuid_parse_entry { CPUID_PARSE_ENTRY ( 0x80000002, 0, generic ), \ CPUID_PARSE_ENTRY ( 0x80000003, 0, generic ), \ CPUID_PARSE_ENTRY ( 0x80000004, 0, generic ), \ + CPUID_PARSE_ENTRY ( 0x80000005, 0, generic ), \ + CPUID_PARSE_ENTRY ( 0x80000006, 0, generic ), \ CPUID_PARSE_ENTRY_N ( 0x8000001d, deterministic_cache ), \ /* -- 2.50.1