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tools/x86/kcpuid: Define Transmeta and Centaur index ranges

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Explicitly define the CPUID index ranges for Transmeta (0x80860000) and
Centaur/Zhaoxin (0xc0000000).

Without these explicit definitions, their respective CPUID indices would
be skipped during CSV bitfield parsing.

Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/20250324142042.29010-16-darwi@linutronix.de
This commit is contained in:
Ahmed S. Darwish 2025-03-24 15:20:36 +01:00 committed by Ingo Molnar
parent 72383c8274
commit 87669e74d8
1 changed files with 6 additions and 0 deletions
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6
tools/arch/x86/kcpuid/kcpuid.c
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@ -69,6 +69,8 @@ struct cpuid_func {
enum range_index {
RANGE_STD = 0, /* Standard */
RANGE_EXT = 0x80000000, /* Extended */
RANGE_TSM = 0x80860000, /* Transmeta */
RANGE_CTR = 0xc0000000, /* Centaur/Zhaoxin */
};
#define CPUID_INDEX_MASK 0xffff0000
@ -85,6 +87,8 @@ struct cpuid_range {
static struct cpuid_range ranges[] = {
{ .index = RANGE_STD, },
{ .index = RANGE_EXT, },
{ .index = RANGE_TSM, },
{ .index = RANGE_CTR, },
};
static char *range_to_str(struct cpuid_range *range)
@ -92,6 +96,8 @@ static char *range_to_str(struct cpuid_range *range)
switch (range->index) {
case RANGE_STD: return "Standard";
case RANGE_EXT: return "Extended";
case RANGE_TSM: return "Transmeta";
case RANGE_CTR: return "Centaur";
default: return NULL;
}
}