ia64: Checkin support files for vendor-specific ACPI extensions.

      Fix spelling of Hewlett-Packard.

arch/ia64/hp/common/sba_iommu.c

@@ -1497,7 +1497,7 @@ static int sba_proc_info(char *buf, char **start, off_t offset, int len)
 		ioc = &sba_dev->ioc[0];	/* FIXME: Multi-IOC support! */
 		total_pages = (int) (ioc->res_size << 3); /* 8 bits per byte */
 
-		sprintf(buf, "%s rev %d.%d\n", "Hewlett Packard zx1 SBA",
+		sprintf(buf, "%s rev %d.%d\n", "Hewlett-Packard zx1 SBA",
 			((sba_dev->hw_rev >> 4) & 0xF), (sba_dev->hw_rev & 0xF));
 		sprintf(buf, "%sIO PDIR size    : %d bytes (%d entries)\n", buf,
 			(int) ((ioc->res_size << 3) * sizeof(u64)), /* 8 bits/byte */ total_pages);

arch/ia64/kernel/acpi-ext.c

+/*
+ * arch/ia64/kernel/acpi-ext.c
+ *
+ * Copyright (C) 2003 Hewlett-Packard
+ * Copyright (C) Alex Williamson
+ *
+ * Vendor specific extensions to ACPI.  These are used by both
+ * HP and NEC.
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/acpi.h>
+#include <linux/efi.h>
+
+#include <asm/acpi-ext.h>
+
+/*
+ * Note: Strictly speaking, this is only needed for HP and NEC machines.
+ *	 However, NEC machines identify themselves as DIG-compliant, so there is
+ *	 no easy way to #ifdef this out.
+ */
+acpi_status
+hp_acpi_csr_space (acpi_handle obj, u64 *csr_base, u64 *csr_length)
+{
+	int i, offset = 0;
+	acpi_status status;
+	struct acpi_buffer buf;
+	struct acpi_resource_vendor *res;
+	struct acpi_hp_vendor_long *hp_res;
+	efi_guid_t vendor_guid;
+
+	*csr_base = 0;
+	*csr_length = 0;
+
+	status = acpi_get_crs(obj, &buf);
+	if (ACPI_FAILURE(status)) {
+		printk(KERN_ERR PREFIX "Unable to get _CRS data on object\n");
+		return status;
+	}
+
+	res = (struct acpi_resource_vendor *)acpi_get_crs_type(&buf, &offset, ACPI_RSTYPE_VENDOR);
+	if (!res) {
+		printk(KERN_ERR PREFIX "Failed to find config space for device\n");
+		acpi_dispose_crs(&buf);
+		return AE_NOT_FOUND;
+	}
+
+	hp_res = (struct acpi_hp_vendor_long *)(res->reserved);
+
+	if (res->length != HP_CCSR_LENGTH || hp_res->guid_id != HP_CCSR_TYPE) {
+		printk(KERN_ERR PREFIX "Unknown Vendor data\n");
+		acpi_dispose_crs(&buf);
+		return AE_TYPE; /* Revisit error? */
+	}
+
+	memcpy(&vendor_guid, hp_res->guid, sizeof(efi_guid_t));
+	if (efi_guidcmp(vendor_guid, HP_CCSR_GUID) != 0) {
+		printk(KERN_ERR PREFIX "Vendor GUID does not match\n");
+		acpi_dispose_crs(&buf);
+		return AE_TYPE; /* Revisit error? */
+	}
+
+	for (i = 0 ; i < 8 ; i++) {
+		*csr_base |= ((u64)(hp_res->csr_base[i]) << (i * 8));
+		*csr_length |= ((u64)(hp_res->csr_length[i]) << (i * 8));
+	}
+
+	acpi_dispose_crs(&buf);
+	return AE_OK;
+}

include/asm-ia64/acpi-ext.h

+/*
+ * ia64/platform/hp/common/hp_acpi.h
+ *
+ * Copyright (C) 2003 Hewlett-Packard
+ * Copyright (C) Alex Williamson
+ *
+ * Vendor specific extensions to ACPI.  The HP-specific extensiosn are also used by NEC.
+ */
+#ifndef _ASM_IA64_ACPI_EXT_H
+#define _ASM_IA64_ACPI_EXT_H
+
+#include <linux/types.h>
+
+#define HP_CCSR_LENGTH	0x21
+#define HP_CCSR_TYPE	0x2
+#define HP_CCSR_GUID	EFI_GUID(0x69e9adf9, 0x924f, 0xab5f, \
+				 0xf6, 0x4a, 0x24, 0xd2, 0x01, 0x37, 0x0e, 0xad)
+
+struct acpi_hp_vendor_long {
+	u8      guid_id;
+	u8      guid[16];
+	u8      csr_base[8];
+	u8      csr_length[8];
+};
+
+extern acpi_status hp_acpi_csr_space (acpi_handle, u64 *base, u64 *length);
+extern acpi_status acpi_get_crs (acpi_handle, struct acpi_buffer *);
+extern struct acpi_resource *acpi_get_crs_next (struct acpi_buffer *, int *);
+extern union acpi_resource_data *acpi_get_crs_type (struct acpi_buffer *, int *, int);
+extern void acpi_dispose_crs (struct acpi_buffer *);
+
+#endif /* _ASM_IA64_ACPI_EXT_H */