[tip: x86/msr] x86/olpc: Stop using 32-bit MSR interfaces

["tip-bot2 for Juergen Gross" <tip-bot2@linutronix.de>]

The following commit has been merged into the x86/msr branch of tip:

Commit-ID:     2db442843e4e8ec468842306f7c9a83a595c430f
Gitweb:        https://git.kernel.org/tip/2db442843e4e8ec468842306f7c9a83a595c430f
Author:        Juergen Gross <jgross@suse.com>
AuthorDate:    Mon, 29 Jun 2026 08:05:19 +02:00
Committer:     Ingo Molnar <mingo@kernel.org>
CommitterDate: Fri, 03 Jul 2026 11:33:59 +02:00

x86/olpc: Stop using 32-bit MSR interfaces

The 32-bit MSR interface rdmsr() is planned to be removed. Use the
related 64-bit variant instead.

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://patch.msgid.link/20260629060526.3638272-29-jgross@suse.com
---
 arch/x86/platform/olpc/olpc-xo1-sci.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/arch/x86/platform/olpc/olpc-xo1-sci.c b/arch/x86/platform/olpc/olpc-xo1-sci.c
index 30751b4..97eb473 100644
--- a/arch/x86/platform/olpc/olpc-xo1-sci.c
+++ b/arch/x86/platform/olpc/olpc-xo1-sci.c
@@ -311,12 +311,13 @@ static int xo1_sci_resume(struct platform_device *pdev)
 
 static int setup_sci_interrupt(struct platform_device *pdev)
 {
-	u32 lo, hi;
+	u64 msr;
+	u32 lo;
 	u32 sts;
 	int r;
 
-	rdmsr(0x51400020, lo, hi);
-	sci_irq = (lo >> 20) & 15;
+	rdmsrq(0x51400020, msr);
+	sci_irq = (msr >> 20) & 15;
 
 	if (sci_irq) {
 		dev_info(&pdev->dev, "SCI is mapped to IRQ %d\n", sci_irq);
@@ -324,8 +325,8 @@ static int setup_sci_interrupt(struct platform_device *pdev)
 		/* Zero means masked */
 		dev_info(&pdev->dev, "SCI unmapped. Mapping to IRQ 3\n");
 		sci_irq = 3;
-		lo |= 0x00300000;
-		wrmsrq(0x51400020, lo);
+		msr |= 0x00300000;
+		wrmsrq(0x51400020, msr);
 	}
 
 	/* Select level triggered in PIC */