Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1299449

[tip:x86/urgent] x86/numachip: Fix NumaConnect2 MMCFG PCI access

From tip-bot for Daniel J Blueman <tipbot@zytor.com>
Newsgroups linux.kernel
Subject [tip:x86/urgent] x86/numachip: Fix NumaConnect2 MMCFG PCI access
Date 2015-12-30 19:30 +0100
Message-ID <qLtFw-1GU-7@gated-at.bofh.it> (permalink)
References <qLtFw-1GU-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


Commit-ID:  dd7a5ab495019d424c2b0747892eb2e38a052ba5
Gitweb:     http://git.kernel.org/tip/dd7a5ab495019d424c2b0747892eb2e38a052ba5
Author:     Daniel J Blueman <daniel@numascale.com>
AuthorDate: Thu, 31 Dec 2015 02:06:47 +0800
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Wed, 30 Dec 2015 19:19:03 +0100

x86/numachip: Fix NumaConnect2 MMCFG PCI access

The MMCFG PCI accessors weren't being setup for NumacConnect2
correctly due to over-early assignment; this would create the
potential for the wrong PCI domain to be accessed.

Fix this by using the correct arch-specific PCI init function.

Signed-off-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Steffen Persvold <sp@numascale.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1451498807-15920-1-git-send-email-daniel@numascale.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apic/apic_numachip.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c
index 38dd5ef..2bd2292 100644
--- a/arch/x86/kernel/apic/apic_numachip.c
+++ b/arch/x86/kernel/apic/apic_numachip.c
@@ -193,20 +193,17 @@ static int __init numachip_system_init(void)
 	case 1:
 		init_extra_mapping_uc(NUMACHIP_LCSR_BASE, NUMACHIP_LCSR_SIZE);
 		numachip_apic_icr_write = numachip1_apic_icr_write;
-		x86_init.pci.arch_init = pci_numachip_init;
 		break;
 	case 2:
 		init_extra_mapping_uc(NUMACHIP2_LCSR_BASE, NUMACHIP2_LCSR_SIZE);
 		numachip_apic_icr_write = numachip2_apic_icr_write;
-
-		/* Use MCFG config cycles rather than locked CF8 cycles */
-		raw_pci_ops = &pci_mmcfg;
 		break;
 	default:
 		return 0;
 	}
 
 	x86_cpuinit.fixup_cpu_id = fixup_cpu_id;
+	x86_init.pci.arch_init = pci_numachip_init;
 
 	return 0;
 }
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread


Thread

[tip:x86/urgent] x86/numachip: Fix NumaConnect2 MMCFG PCI access tip-bot for Daniel J Blueman <tipbot@zytor.com> - 2015-12-30 19:30 +0100

csiph-web