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.
This commit is contained in:
jakllsch 2016-08-17 00:22:56 +00:00
parent 143d08947e
commit 33332c25ae

View File

@ -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