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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-ia64/fpswa.h
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-ia64/fpswa.h')
-rw-r--r--include/asm-ia64/fpswa.h73
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 */