Author: br
Date: Tue Jun 9 17:07:42 2020
New Revision: 361976
URL: https://svnweb.freebsd.org/changeset/base/361976
Log:
Similar to UART on ThunderX2, the ARM Coresight (ETM component)
set ResourceProducer on memory resources: ignore it.
Tested on ARM N1SDP board.
Sponsored by: DARPA, AFRL
Modified:
head/sys/dev/acpica/acpi_resource.c
Modified: head/sys/dev/acpica/acpi_resource.c
==============================================================================
--- head/sys/dev/acpica/acpi_resource.c Tue Jun 9 16:43:23 2020
(r361975)
+++ head/sys/dev/acpica/acpi_resource.c Tue Jun 9 17:07:42 2020
(r361976)
@@ -484,6 +484,10 @@ acpi_parse_resources(device_t dev, ACPI_HANDLE handle,
if (acpi_MatchHid(handle, "ARMH0011") != ACPI_MATCHHID_NOMATCH)
arc.ignore_producer_flag = true;
+ /* ARM Coresight on N1SDP set ResourceProducer on memory resources. */
+ if (acpi_MatchHid(handle, "ARMHC500") != ACPI_MATCHHID_NOMATCH)
+ arc.ignore_producer_flag = true;
+
status = AcpiWalkResources(handle, "_CRS", acpi_parse_resource, &arc);
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
printf("can't fetch resources for %s - %s\n",
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