On Wednesday, January 22, 2014 11:32:15 am Larry Baird wrote:
> I have a protoype board from PC Engines for their upcoming APU board.
> The board runs fine under FreeBSD 8.4 release but fails to boot using either
> FreeBSD 9.2 release or FreeBSD 10.0 release. Verbose boot seems to indicate
> issue is with ACPI. I am working with PC Engines to get FreeBSD up and
> running on their board. Hopefully attached information is enough to
> determine issue with BIOS. I'll then feed this information back to PC
> Engines so they can provide the information to their BIOS provider.
>
> Attached is a verbose dmesg from 9.2. In case it gets stripped you
> can also find dmesg at: ftp://ftp.gta.com/pub/apu/FreeBSD9.2/bootVerbose.txt
>
> Dmesg from booting 8.4 is at: ftp://ftp.gta.com/pub/apu/FreeBSD8.4/dmesg.boot
>
> Dump of sysctl.hw.acpi from FreeBSD 8.4 is:
>
> hw.acpi.supported_sleep_state: S1 S2 S3 S4 S5
> hw.acpi.power_button_state: S5
> hw.acpi.sleep_button_state: S1
> hw.acpi.lid_switch_state: NONE
> hw.acpi.standby_state: S1
> hw.acpi.suspend_state: S3
> hw.acpi.sleep_delay: 1
> hw.acpi.s4bios: 0
> hw.acpi.verbose: 0
> hw.acpi.disable_on_reboot: 0
> hw.acpi.handle_reboot: 1
> hw.acpi.reset_video: 0
> hw.acpi.cpu.cx_lowest: C1
>
> acpidump -dt from from FreeBSD 8.4 is at:
> ftp://ftp.gta.com/pub/apu/FreeBSD8.4/lab-pcengines-apu1b.asl
The BIOS is busted. The resource ranges that the Host-PCI bridge decodes are
marked as regular resources when they should be ResourceProducer ranges
instead. They have this correct for I/O port resources, but not memory. You
can try this workaround:
Index: sys/dev/acpica/acpi.c
===================================================================
--- acpi.c (revision 261235)
+++ acpi.c (working copy)
@@ -1190,6 +1190,7 @@ acpi_set_resource(device_t dev, device_t child, in
struct acpi_softc *sc = device_get_softc(dev);
struct acpi_device *ad = device_get_ivars(child);
struct resource_list *rl = &ad->ad_rl;
+ ACPI_DEVICE_INFO *devinfo;
u_long end;
/* Ignore IRQ resources for PCI link devices. */
@@ -1196,6 +1197,21 @@ acpi_set_resource(device_t dev, device_t child, in
if (type == SYS_RES_IRQ && ACPI_ID_PROBE(dev, child, pcilink_ids) != NULL)
return (0);
+ /*
+ * Ignore memory resources for PCI root bridges. Some BIOSes
+ * incorrectly enumerate the memory ranges they decode as plain
+ * memory resources instead of as a ResourceProducer range.
+ */
+ if (type == SYS_RES_MEMORY) {
+ if (ACPI_SUCCESS(AcpiGetObjectInfo(ad->ad_handle, &devinfo))) {
+ if ((devinfo->Flags & ACPI_PCI_ROOT_BRIDGE) != 0) {
+ AcpiOsFree(devinfo);
+ return (0);
+ }
+ AcpiOsFree(devinfo);
+ }
+ }
+
/* If the resource is already allocated, fail. */
if (resource_list_busy(rl, type, rid))
return (EBUSY);
--
John Baldwin
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