From: "Ahmed S. Darwish" <darwi@linutronix.de>
To: Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@redhat.com>,
Dave Hansen <dave.hansen@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Andrew Cooper <andrew.cooper3@citrix.com>,
"H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, John Ogness <john.ogness@linutronix.de>,
x86-cpuid@lists.linux.dev, LKML <linux-kernel@vger.kernel.org>,
"Ahmed S. Darwish" <darwi@linutronix.de>
Subject: [PATCH v1 09/12] tools/x86/kcpuid: Define Transmeta and Centaur index ranges
Date: Thu, 6 Mar 2025 21:49:57 +0100 [thread overview]
Message-ID: <20250306205000.227399-10-darwi@linutronix.de> (raw)
In-Reply-To: <20250306205000.227399-1-darwi@linutronix.de>
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>
---
tools/arch/x86/kcpuid/kcpuid.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/tools/arch/x86/kcpuid/kcpuid.c b/tools/arch/x86/kcpuid/kcpuid.c
index 3153c8eba0c4..823226fbf089 100644
--- a/tools/arch/x86/kcpuid/kcpuid.c
+++ b/tools/arch/x86/kcpuid/kcpuid.c
@@ -83,6 +83,8 @@ static enum cpu_vendor this_cpu_vendor;
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
@@ -105,6 +107,12 @@ static struct cpuid_range ranges[] = {
{ .index = RANGE_EXT,
.vendors = VENDOR_ALL,
},
+ { .index = RANGE_TSM,
+ .vendors = VENDOR_TRANSMETA,
+ },
+ { .index = RANGE_CTR,
+ .vendors = VENDOR_CENTAUR,
+ },
};
static char *range_to_str(struct cpuid_range *range)
@@ -112,6 +120,8 @@ 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;
}
}
--
2.48.1
next prev parent reply other threads:[~2025-03-06 20:50 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-06 20:49 [PATCH v1 00/12] tools/x86/kcpuid: x86-cpuid-db v2.2 update Ahmed S. Darwish
2025-03-06 20:49 ` [PATCH v1 01/12] tools/x86/kcpuid: Fix error handling Ahmed S. Darwish
2025-03-06 20:49 ` [PATCH v1 02/12] tools/x86/kcpuid: Remove unused local variable Ahmed S. Darwish
2025-03-06 20:49 ` [PATCH v1 03/12] tools/x86/kcpuid: Remove unused global variable Ahmed S. Darwish
2025-03-06 20:49 ` [PATCH v1 04/12] tools/x86/kcpuid: Simplify usage() handling Ahmed S. Darwish
2025-03-06 20:49 ` [PATCH v1 05/12] tools/x86/kcpuid: Refactor CPUID range handling for future expansion Ahmed S. Darwish
2025-03-06 20:49 ` [PATCH v1 06/12] tools/x86/kcpuid: Extend CPUID index mask macro Ahmed S. Darwish
2025-03-06 20:49 ` [PATCH v1 07/12] tools/x86/kcpuid: Add rudimentary CPU vendor detection Ahmed S. Darwish
2025-03-06 21:07 ` Andrew Cooper
2025-03-07 14:06 ` Ahmed S. Darwish
2025-03-06 22:00 ` Dave Hansen
2025-03-07 13:48 ` Ahmed S. Darwish
2025-03-07 15:46 ` H. Peter Anvin
2025-03-07 15:03 ` Dave Hansen
2025-03-10 14:21 ` Ahmed S. Darwish
2025-03-06 20:49 ` [PATCH v1 08/12] tools/x86/kcpuid: Restrict CPUID scanning to valid vendor ranges Ahmed S. Darwish
2025-03-06 20:49 ` Ahmed S. Darwish [this message]
2025-03-06 20:49 ` [PATCH v1 10/12] tools/x86/kcpuid: Update bitfields to x86-cpuid-db v2.0 Ahmed S. Darwish
2025-03-07 3:18 ` H. Peter Anvin
2025-03-07 15:07 ` Ahmed S. Darwish
2025-03-07 15:27 ` H. Peter Anvin
2025-03-10 14:47 ` Ahmed S. Darwish
2025-03-06 20:49 ` [PATCH v1 11/12] tools/x86/kcpuid: Update bitfields to x86-cpuid-db v2.2 Ahmed S. Darwish
2025-03-06 20:50 ` [PATCH v1 12/12] MAINTAINERS: Include kcpuid under X86 CPUID DATABASE Ahmed S. Darwish
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