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Support fixed size, variable location acpi resources

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These have been found in some Arm ACPI tables generated by edk2, e.g.
when describing the pl011 uart on the Arm AEMv8 model.

Reviewed by:	imp, jkim
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D31110
This commit is contained in:
Andrew Turner
2021-07-08 15:25:38 +00:00
parent ce64352a70
commit 1472117a1e
1 changed files with 21 additions and 0 deletions
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sys/dev/acpica/acpi_resource.c
+21
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@@ -421,6 +421,27 @@ acpi_parse_resource(ACPI_RESOURCE *res, void *context)
(uintmax_t)min, (uintmax_t)length));
set->set_ioport(dev, arc->context, min, length);
}
} else if (res->Data.Address.MinAddressFixed != ACPI_ADDRESS_FIXED &&
res->Data.Address.MaxAddressFixed != ACPI_ADDRESS_FIXED) {
/* Fixed size, variable location resource descriptor */
min = roundup(min, gran + 1);
if ((min + length - 1) > max) {
device_printf(dev,
"invalid memory range: start: %jx end: %jx max: %jx\n",
(uintmax_t)min, (uintmax_t)(min + length - 1),
(uintmax_t)max);
} else {
if (res->Data.Address.ResourceType == ACPI_MEMORY_RANGE) {
ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
"%s/Memory 0x%jx/%ju\n", name, (uintmax_t)min,
(uintmax_t)length));
set->set_memory(dev, arc->context, min, length);
} else {
ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "%s/IO 0x%jx/%ju\n",
name, (uintmax_t)min, (uintmax_t)length));
set->set_ioport(dev, arc->context, min, length);
}
}
} else {
if (res->Data.Address32.ResourceType == ACPI_MEMORY_RANGE) {
ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,