Author: jhb
Date: Thu Jul 21 20:43:43 2011
New Revision: 224254
URL: http://svn.freebsd.org/changeset/base/224254
Log:
Allow non-fixed endpoints for a producer address range if the length of
the resource covers the entire range. Some BIOSes appear to mark
endpoints as non-fixed incorrectly (non-fixed endpoints are supposed to
be used in _PRS when OSPM is allowed to allocate a certain chunk of
address space within a larger range, I don't believe it is supposed to be
used for _CRS).
Approved by: re (kib)
Modified:
head/sys/dev/acpica/acpi_pcib_acpi.c
Modified: head/sys/dev/acpica/acpi_pcib_acpi.c
==============================================================================
--- head/sys/dev/acpica/acpi_pcib_acpi.c Thu Jul 21 20:06:14 2011
(r224253)
+++ head/sys/dev/acpica/acpi_pcib_acpi.c Thu Jul 21 20:43:43 2011
(r224254)
@@ -207,9 +207,11 @@ acpi_pcib_producer_handler(ACPI_RESOURCE
length = res->Data.ExtAddress64.AddressLength;
break;
}
- if (length == 0 ||
- res->Data.Address.MinAddressFixed != ACPI_ADDRESS_FIXED ||
- res->Data.Address.MaxAddressFixed != ACPI_ADDRESS_FIXED)
+ if (length == 0)
+ break;
+ if (min + length - 1 != max &&
+ (res->Data.Address.MinAddressFixed != ACPI_ADDRESS_FIXED ||
+ res->Data.Address.MaxAddressFixed != ACPI_ADDRESS_FIXED))
break;
flags = 0;
switch (res->Data.Address.ResourceType) {
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