svn commit: r361976 - head/sys/dev/acpica

[Ruslan Bukin]

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",