Module Name: src
Committed By: msaitoh
Date: Mon Jan 28 04:09:51 UTC 2019
Modified Files:
src/sys/dev/pci: ppb.c
Log Message:
Explicitly enable bus masterling in case BIOS, UEFI or firmware don't enable
it. Might fix PR kern/53811.
To generate a diff of this commit:
cvs rdiff -u -r1.65 -r1.66 src/sys/dev/pci/ppb.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/pci/ppb.c
diff -u src/sys/dev/pci/ppb.c:1.65 src/sys/dev/pci/ppb.c:1.66
--- src/sys/dev/pci/ppb.c:1.65 Sun Jan 27 02:08:42 2019
+++ src/sys/dev/pci/ppb.c Mon Jan 28 04:09:51 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: ppb.c,v 1.65 2019/01/27 02:08:42 pgoyette Exp $ */
+/* $NetBSD: ppb.c,v 1.66 2019/01/28 04:09:51 msaitoh Exp $ */
/*
* Copyright (c) 1996, 1998 Christopher G. Demetriou. All rights reserved.
@@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ppb.c,v 1.65 2019/01/27 02:08:42 pgoyette Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ppb.c,v 1.66 2019/01/28 04:09:51 msaitoh Exp $");
#ifdef _KERNEL_OPT
#include "opt_ppb.h"
@@ -358,6 +358,11 @@ ppbattach(device_t parent, device_t self
}
#endif /* PPB_USEINTR */
+ /* Enable bus master. */
+ reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
+ pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
+ reg | PCI_COMMAND_MASTER_ENABLE);
+
if (!pmf_device_register(self, ppb_suspend, ppb_resume))
aprint_error_dev(self, "couldn't establish power handler\n");
