linux-kernel - [tip: x86/irq] x86/PCI: Show the physical address of the $PIR table

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Date:   Sun, 10 Apr 2022 10:54:34 -0000
From:   "tip-bot2 for Maciej W. Rozycki" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     "Maciej W. Rozycki" <macro@...am.me.uk>,
        Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: x86/irq] x86/PCI: Show the physical address of the $PIR table

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

Commit-ID:     613fa6e217e1f216109da784d6f127cc708026c0
Gitweb:        https://git.kernel.org/tip/613fa6e217e1f216109da784d6f127cc708026c0
Author:        Maciej W. Rozycki <macro@...am.me.uk>
AuthorDate:    Thu, 31 Mar 2022 08:10:12 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Sun, 10 Apr 2022 12:48:14 +02:00

x86/PCI: Show the physical address of the $PIR table

It makes no sense to hide the address of the $PIR table in a debug dump:

PCI: Interrupt Routing Table found at 0x(ptrval)

let alone print its virtual address, given that this is a BIOS entity at 
a fixed location in the system's memory map.  Show the physical address 
instead then, e.g.:

PCI: Interrupt Routing Table found at 0xfde10

Signed-off-by: Maciej W. Rozycki <macro@...am.me.uk>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2203301532330.22465@angie.orcam.me.uk

---
 arch/x86/pci/irq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 97b63e3..a33fe9c 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -84,8 +84,8 @@ static inline struct irq_routing_table *pirq_check_routing_table(u8 *addr)
 	for (i = 0; i < rt->size; i++)
 		sum += addr[i];
 	if (!sum) {
-		DBG(KERN_DEBUG "PCI: Interrupt Routing Table found at 0x%p\n",
-			rt);
+		DBG(KERN_DEBUG "PCI: Interrupt Routing Table found at 0x%lx\n",
+		    __pa(rt));
 		return rt;
 	}
 	return NULL;