1 files changed, 73 insertions, 0 deletions

diff --git a/include/asm-ia64/fpswa.h b/include/asm-ia64/fpswa.h
new file mode 100644
index 000000000000..62edfceadaa6
--- /dev/null
+++ b/include/asm-ia64/fpswa.h
@@ -0,0 +1,73 @@
+#ifndef _ASM_IA64_FPSWA_H
+#define _ASM_IA64_FPSWA_H
+
+/*
+ * Floating-point Software Assist
+ *
+ * Copyright (C) 1999 Intel Corporation.
+ * Copyright (C) 1999 Asit Mallick <asit.k.mallick@intel.com>
+ * Copyright (C) 1999 Goutham Rao <goutham.rao@intel.com>
+ */
+
+typedef struct {
+        /* 4 * 128 bits */
+        unsigned long fp_lp[4*2];
+} fp_state_low_preserved_t;
+
+typedef struct {
+        /* 10 * 128 bits */
+        unsigned long fp_lv[10 * 2];
+} fp_state_low_volatile_t;
+
+typedef struct {
+        /* 16 * 128 bits */
+        unsigned long fp_hp[16 * 2];
+} fp_state_high_preserved_t;
+
+typedef struct {
+        /* 96 * 128 bits */
+        unsigned long fp_hv[96 * 2];
+} fp_state_high_volatile_t;
+
+/**
+ * floating point state to be passed to the FP emulation library by
+ * the trap/fault handler
+ */
+typedef struct {
+        unsigned long                   bitmask_low64;
+        unsigned long                   bitmask_high64;
+        fp_state_low_preserved_t        *fp_state_low_preserved;
+        fp_state_low_volatile_t         *fp_state_low_volatile;
+        fp_state_high_preserved_t       *fp_state_high_preserved;
+        fp_state_high_volatile_t        *fp_state_high_volatile;
+} fp_state_t;
+
+typedef struct {
+        unsigned long status;
+        unsigned long err0;
+        unsigned long err1;
+        unsigned long err2;
+} fpswa_ret_t;
+
+/**
+ * function header for the Floating Point software assist
+ * library. This function is invoked by the Floating point software
+ * assist trap/fault handler.
+ */
+typedef fpswa_ret_t (*efi_fpswa_t) (unsigned long trap_type, void *bundle, unsigned long *ipsr,
+                                    unsigned long *fsr, unsigned long *isr, unsigned long *preds,
+                                    unsigned long *ifs, fp_state_t *fp_state);
+
+/**
+ * This is the FPSWA library interface as defined by EFI.  We need to pass a 
+ * pointer to the interface itself on a call to the assist library
+ */
+typedef struct {
+        unsigned int     revision;
+        unsigned int     reserved;
+        efi_fpswa_t      fpswa;
+} fpswa_interface_t;
+
+extern fpswa_interface_t *fpswa_interface;
+
+#endif /* _ASM_IA64_FPSWA_H */