From: Juergen Gross <jgross@suse.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org, linux-pci@vger.kernel.org
Cc: Juergen Gross <jgross@suse.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: [PATCH 11/32] x86/pci: Stop using 32-bit MSR interfaces
Date: Mon, 29 Jun 2026 08:05:02 +0200 [thread overview]
Message-ID: <20260629060526.3638272-12-jgross@suse.com> (raw)
In-Reply-To: <20260629060526.3638272-1-jgross@suse.com>
The 32-bit MSR interface rdmsr_safe()is planned to be removed. Use the
related 64-bit variant instead.
Signed-off-by: Juergen Gross <jgross@suse.com>
---
arch/x86/pci/mmconfig-shared.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index acdb8dcaeb52..9749820f68f7 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -189,7 +189,7 @@ static const char *__init pci_mmcfg_intel_945(void)
static const char *__init pci_mmcfg_amd_fam10h(void)
{
- u32 low, high, address;
+ u32 address;
u64 base, msr;
int i;
unsigned segnbits = 0, busnbits, end_bus;
@@ -198,13 +198,9 @@ static const char *__init pci_mmcfg_amd_fam10h(void)
return NULL;
address = MSR_FAM10H_MMIO_CONF_BASE;
- if (rdmsr_safe(address, &low, &high))
+ if (rdmsrq_safe(address, &msr))
return NULL;
- msr = high;
- msr <<= 32;
- msr |= low;
-
/* ECAM is not enabled */
if (!(msr & FAM10H_MMIO_CONF_ENABLE))
return NULL;
--
2.54.0
next prev parent reply other threads:[~2026-06-29 6:06 UTC|newest]
Thread overview: 113+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-29 6:04 [PATCH 00/32] x86/msr: Drop " Juergen Gross
2026-06-29 6:04 ` [PATCH 01/32] thermal/intel: Stop using " Juergen Gross
2026-07-02 9:31 ` Ingo Molnar
2026-07-02 11:18 ` Jürgen Groß
2026-07-03 11:22 ` [PATCH v2 " Juergen Gross
2026-07-06 12:47 ` Rafael J. Wysocki (Intel)
2026-07-17 9:26 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:04 ` [PATCH 02/32] powercap: " Juergen Gross
2026-06-29 11:25 ` Ingo Molnar
2026-06-29 11:33 ` Jürgen Groß
2026-06-29 12:31 ` Ingo Molnar
2026-06-29 12:52 ` Jürgen Groß
2026-07-06 12:48 ` Rafael J. Wysocki (Intel)
2026-07-17 9:26 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:04 ` [PATCH 03/32] edac: " Juergen Gross
2026-06-30 1:50 ` Zhuo, Qiuxu
2026-07-02 10:15 ` [tip: x86/msr] EDAC: " tip-bot2 for Juergen Gross
2026-06-29 6:04 ` [PATCH 04/32] acpi: " Juergen Gross
2026-06-30 12:30 ` Rafael J. Wysocki (Intel)
2026-06-30 12:42 ` Jürgen Groß
2026-07-02 9:17 ` Ingo Molnar
2026-07-02 11:33 ` Rafael J. Wysocki (Intel)
2026-07-04 8:26 ` Ingo Molnar
2026-07-06 12:50 ` Rafael J. Wysocki (Intel)
2026-07-17 9:26 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:04 ` [PATCH 05/32] x86/mtrr: " Juergen Gross
2026-06-29 11:33 ` Ingo Molnar
2026-06-29 11:41 ` Jürgen Groß
2026-06-29 12:27 ` Ingo Molnar
2026-06-29 13:04 ` Jürgen Groß
2026-07-02 9:15 ` Ingo Molnar
2026-07-03 11:23 ` [PATCH v2 " Juergen Gross
2026-07-17 9:42 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:04 ` [PATCH 06/32] x86/msr: Stop using 32-bit MSR interfaces in lib/msr-smp.c Juergen Gross
2026-07-02 10:16 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:04 ` [PATCH 07/32] x86/msr: Remove wrmsr_safe() Juergen Gross
2026-06-29 6:04 ` [PATCH 08/32] x86/mce: Stop using 32-bit MSR interfaces Juergen Gross
2026-07-02 10:16 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-07-03 10:55 ` [PATCH] x86/mce: Fix build warning after MSR-interface switch Juergen Gross
2026-07-17 9:28 ` Ingo Molnar
2026-07-17 10:18 ` Jürgen Groß
2026-07-17 10:25 ` Ingo Molnar
2026-07-17 11:03 ` Jürgen Groß
2026-06-29 6:05 ` [PATCH 09/32] KVM/x86: Stop using 32-bit MSR interfaces Juergen Gross
2026-07-17 9:42 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:05 ` [PATCH 10/32] x86/hygon: " Juergen Gross
2026-07-02 10:16 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:05 ` Juergen Gross [this message]
2026-07-02 10:16 ` [tip: x86/msr] x86/pci: " tip-bot2 for Juergen Gross
2026-06-29 6:05 ` [PATCH 12/32] x86/amd: " Juergen Gross
2026-07-02 10:16 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:05 ` [PATCH 13/32] x86/featctl: " Juergen Gross
2026-07-02 9:39 ` Ingo Molnar
2026-07-02 11:19 ` Jürgen Groß
2026-07-03 11:24 ` [PATCH v2 " Juergen Gross
2026-07-17 9:42 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:05 ` [PATCH 14/32] x86/tsc: " Juergen Gross
2026-07-02 10:15 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:05 ` [PATCH 15/32] x86/msr: Remove rdmsr_safe() Juergen Gross
2026-06-29 6:05 ` [PATCH 16/32] cpufreq: Stop using 32-bit MSR interfaces Juergen Gross
2026-06-29 14:55 ` Zhongqiu Han
2026-06-30 6:38 ` Juergen Gross
2026-07-03 11:24 ` [PATCH v2 " Juergen Gross
2026-07-05 4:51 ` Zhongqiu Han
2026-07-17 9:42 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:05 ` [PATCH 17/32] x86/resctrl: " Juergen Gross
2026-07-01 16:49 ` Reinette Chatre
2026-07-02 10:15 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:05 ` [PATCH 18/32] x86/apic: " Juergen Gross
2026-07-02 10:15 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:05 ` [PATCH 19/32] x86/cpu: " Juergen Gross
2026-07-02 10:15 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-07-03 21:48 ` Borislav Petkov
2026-07-06 8:30 ` Juergen Gross
2026-07-06 14:26 ` Borislav Petkov
2026-07-06 14:39 ` Jürgen Groß
2026-07-17 9:36 ` Ingo Molnar
2026-07-17 10:18 ` Jürgen Groß
2026-07-17 10:26 ` Ingo Molnar
2026-06-29 6:05 ` [PATCH 20/32] drivers/ata: " Juergen Gross
2026-07-03 11:25 ` [PATCH v2 " Juergen Gross
2026-06-29 6:05 ` [PATCH 21/32] agp/nvidia: " Juergen Gross
2026-06-29 6:05 ` [PATCH 22/32] fbdev/geode: " Juergen Gross
2026-06-29 6:05 ` [PATCH 23/32] hw_random/via-rng: " Juergen Gross
2026-06-29 6:05 ` [PATCH 24/32] drivers/gpio: " Juergen Gross
2026-06-29 10:33 ` Bartosz Golaszewski
2026-07-01 8:13 ` Linus Walleij
2026-07-01 8:32 ` Juergen Gross
2026-06-29 6:05 ` [PATCH 25/32] drivers/misc: " Juergen Gross
2026-06-29 6:05 ` [PATCH 26/32] x86/msr: Remove wrmsr() Juergen Gross
2026-06-29 6:05 ` [PATCH 27/32] x86/hyperv: Stop using 32-bit MSR interfaces Juergen Gross
2026-07-03 9:39 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:05 ` [PATCH 28/32] x86/olpc: " Juergen Gross
2026-07-03 9:39 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:05 ` [PATCH 29/32] hwmon: " Juergen Gross
2026-06-29 15:05 ` Guenter Roeck
2026-07-03 9:39 ` [tip: x86/msr] " tip-bot2 for Juergen Gross
2026-06-29 6:05 ` [PATCH 30/32] x86/msr: Remove rdmsr() Juergen Gross
2026-06-29 6:05 ` [PATCH 31/32] treewide: convert rdmsrq() from a macro to an inline function Juergen Gross
2026-06-29 6:05 ` [PATCH 32/32] x86/msr: Simplify some rdmsrq() use cases Juergen Gross
2026-06-29 6:52 ` [PATCH 00/32] x86/msr: Drop 32-bit MSR interfaces Arnd Bergmann
2026-06-29 7:01 ` Jürgen Groß
2026-06-29 8:06 ` Arnd Bergmann
2026-06-29 8:15 ` Jürgen Groß
2026-06-29 8:30 ` Jan Beulich
2026-06-29 8:38 ` Arnd Bergmann
2026-06-30 20:06 ` H. Peter Anvin
2026-06-29 11:19 ` Ingo Molnar
2026-06-30 18:59 ` Sean Christopherson
2026-07-01 8:33 ` Jürgen Groß
2026-07-02 10:07 ` Ingo Molnar
2026-07-02 11:03 ` Juergen Gross
2026-07-17 9:38 ` Ingo Molnar
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