From 33332c25ae774e2bca0526ed2c30a61d401e6e40 Mon Sep 17 00:00:00 2001
From: jakllsch <jakllsch@NetBSD.org>
Date: Wed, 17 Aug 2016 00:22:56 +0000
Subject: [PATCH] Change tegra_pcie_conf_hook() to only give us the defaults
 without enabled bus mastering.  Previously both bus mastering and ROM decode
 were enabled at pci_configure_bus() time.  Both bus mastering and ROM decode
 potentially have undesireable side effects.  These can best be managed by
 drivers familiar with their hardware.

---
 sys/arch/arm/nvidia/tegra_pcie.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sys/arch/arm/nvidia/tegra_pcie.c b/sys/arch/arm/nvidia/tegra_pcie.c
index 5c16f7022a7a..f420001ca581 100644
--- a/sys/arch/arm/nvidia/tegra_pcie.c
+++ b/sys/arch/arm/nvidia/tegra_pcie.c
@@ -1,4 +1,4 @@
-/* $NetBSD: tegra_pcie.c,v 1.14 2015/12/13 17:39:19 jmcneill Exp $ */
+/* $NetBSD: tegra_pcie.c,v 1.15 2016/08/17 00:22:56 jakllsch Exp $ */
 
 /*-
  * Copyright (c) 2015 Jared D. McNeill <jmcneill@invisible.ca>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tegra_pcie.c,v 1.14 2015/12/13 17:39:19 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tegra_pcie.c,v 1.15 2016/08/17 00:22:56 jakllsch Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -538,7 +538,7 @@ tegra_pcie_conf_write(void *v, pcitag_t tag, int offset, pcireg_t val)
 static int
 tegra_pcie_conf_hook(void *v, int b, int d, int f, pcireg_t id)
 {
-	return PCI_CONF_ALL;
+	return PCI_CONF_DEFAULT & ~PCI_CONF_ENABLE_BM;
 }
 
 static void