1 files changed, 0 insertions, 101 deletions
diff --git a/arch/ia64/kernel/acpi-ext.c b/arch/ia64/kernel/acpi-ext.c
deleted file mode 100644
index 42cd21480833..000000000000
--- a/arch/ia64/kernel/acpi-ext.c
+++ /dev/null
@@ -1,101 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * (c) Copyright 2003, 2006 Hewlett-Packard Development Company, L.P.
- *	Alex Williamson <alex.williamson@hp.com>
- *	Bjorn Helgaas <bjorn.helgaas@hp.com>
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/acpi.h>
-
-#include <asm/acpi-ext.h>
-
-/*
- * Device CSRs that do not appear in PCI config space should be described
- * via ACPI.  This would normally be done with Address Space Descriptors
- * marked as "consumer-only," but old versions of Windows and Linux ignore
- * the producer/consumer flag, so HP invented a vendor-defined resource to
- * describe the location and size of CSR space.
- */
-
-struct acpi_vendor_uuid hp_ccsr_uuid = {
-	.subtype = 2,
-	.data = { 0xf9, 0xad, 0xe9, 0x69, 0x4f, 0x92, 0x5f, 0xab, 0xf6, 0x4a,
-	    0x24, 0xd2, 0x01, 0x37, 0x0e, 0xad },
-};
-
-static acpi_status hp_ccsr_locate(acpi_handle obj, u64 *base, u64 *length)
-{
-	acpi_status status;
-	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
-	struct acpi_resource *resource;
-	struct acpi_resource_vendor_typed *vendor;
-
-	status = acpi_get_vendor_resource(obj, METHOD_NAME__CRS, &hp_ccsr_uuid,
-		&buffer);
-
-	resource = buffer.pointer;
-	vendor = &resource->data.vendor_typed;
-
-	if (ACPI_FAILURE(status) || vendor->byte_length < 16) {
-		status = AE_NOT_FOUND;
-		goto exit;
-	}
-
-	memcpy(base, vendor->byte_data, sizeof(*base));
-	memcpy(length, vendor->byte_data + 8, sizeof(*length));
-
-  exit:
-	kfree(buffer.pointer);
-	return status;
-}
-
-struct csr_space {
-	u64	base;
-	u64	length;
-};
-
-static acpi_status find_csr_space(struct acpi_resource *resource, void *data)
-{
-	struct csr_space *space = data;
-	struct acpi_resource_address64 addr;
-	acpi_status status;
-
-	status = acpi_resource_to_address64(resource, &addr);
-	if (ACPI_SUCCESS(status) &&
-	    addr.resource_type == ACPI_MEMORY_RANGE &&
-	    addr.address.address_length &&
-	    addr.producer_consumer == ACPI_CONSUMER) {
-		space->base = addr.address.minimum;
-		space->length = addr.address.address_length;
-		return AE_CTRL_TERMINATE;
-	}
-	return AE_OK;		/* keep looking */
-}
-
-static acpi_status hp_crs_locate(acpi_handle obj, u64 *base, u64 *length)
-{
-	struct csr_space space = { 0, 0 };
-
-	acpi_walk_resources(obj, METHOD_NAME__CRS, find_csr_space, &space);
-	if (!space.length)
-		return AE_NOT_FOUND;
-
-	*base = space.base;
-	*length = space.length;
-	return AE_OK;
-}
-
-acpi_status hp_acpi_csr_space(acpi_handle obj, u64 *csr_base, u64 *csr_length)
-{
-	acpi_status status;
-
-	status = hp_ccsr_locate(obj, csr_base, csr_length);
-	if (ACPI_SUCCESS(status))
-		return status;
-
-	return hp_crs_locate(obj, csr_base, csr_length);
-}
-EXPORT_SYMBOL(hp_acpi_csr_space);