Initial import of arm32 port

1 files changed, 137 insertions, 0 deletions

diff --git a/sys/arch/arm32/fpe-arm/armfpe.h b/sys/arch/arm32/fpe-arm/armfpe.h
new file mode 100644
index 00000000000..fbcdaf46d10
--- /dev/null
+++ b/sys/arch/arm32/fpe-arm/armfpe.h
@@ -0,0 +1,137 @@
+/*
+ * $NetBSD: armfpe.h,v 1.3 1996/03/18 19:54:53 mark Exp $
+ *
+ * Copyright (c) 1995 Neil A Carson.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ * This product includes software developed by Brini.
+ * 4. The name of the company nor the name of the author may be used to
+ *    endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * RiscBSD kernel project
+ *
+ * armfpe.h
+ *
+ * Details of functions and structures needed for ARM FP cor
+ * support in RiscBSD
+ *
+ * Created      : 04/01/96
+ */
+
+#ifndef __ARM32_ARM_FPE_H
+#define __ARM32_ARM_FPE_H
+
+/************************************ Types ***********************************/
+
+/*
+ * An extended precision floating point number
+ */
+ 
+typedef struct {
+	u_int32_t exponent;
+	u_int32_t mantissa_hi;
+	u_int32_t mantissa_lo;
+} fp_extended_precision_t;
+
+/*
+ * Type for a saved FP context, if we want to translate the context to a
+ * user-readable form
+ */
+ 
+typedef struct fp_context_frame {
+	u_int32_t fpsr;
+	fp_extended_precision_t regs[8];
+} fp_context_frame_t;
+
+/************************************* Module *********************************/
+
+typedef struct {
+	/*
+	 * Addresses of procedures/functions
+	 */
+
+	u_int32_t core_abort_addr;
+	u_int32_t core_initws_addr;
+	u_int32_t core_initcontext_addr;
+	u_int32_t core_changecontext_addr;
+	u_int32_t core_shutdown_addr;
+	u_int32_t core_activatecontext_addr;
+	u_int32_t core_deactivatecontext_addr;
+	u_int32_t core_savecontext_addr;
+	u_int32_t core_loadcontext_addr;
+	u_int32_t core_disable_addr;
+	u_int32_t core_enable_addr;
+
+	/*
+	 * Addresses of things that need to be filled in by the kernel on startup
+	 */
+
+	u_int32_t *main_ws_ptr_addr;
+	u_int32_t *local_handler_ptr_addr;
+	u_int32_t *old_handler_ptr_addr;
+	u_int32_t *exc_handler_ptr_addr;
+	u_int32_t *fp_post_proc_addr;
+
+	/*
+	 * Numbers that the kernel needs - these are not pointers so do not need to
+	 * be relocated!
+	 */
+
+	u_int32_t WorkspaceLength;
+	u_int32_t ContextLength;
+} arm_fpe_mod_hdr_t;
+
+/**************************** Procedures in arm_fpe.c *************************/
+
+#ifdef _KERNEL
+
+/* macro to return the FP context for a process */
+
+#define FP_CONTEXT(p) ((u_int)(((u_char *)(p)->p_addr) + sizeof(struct user)))
+
+/* Prototypes */
+
+void arm_fpe_mod_reloc	__P((void));
+int arm_fpe_boot	__P((void));
+int initialise_arm_fpe	__P((cpu_t *cpu));
+void arm_fpe_postproc	__P((u_int fpframe, struct trapframe *frame));
+void arm_fpe_exception	__P((int exception, u_int pc, u_int fpframe));
+
+void arm_fpe_core_disable	__P((void));
+void arm_fpe_core_enable	__P((void));
+u_int arm_fpe_core_initws	__P((u_int workspace, int handler1, int handler2));
+u_int arm_fpe_core_abort	__P((u_int context, int r12, int pc));
+void arm_fpe_core_initcontext	__P((u_int context));
+u_int arm_fpe_core_changecontext	__P((u_int context));
+void arm_fpe_core_shutdown		__P((void));
+void arm_fpe_core_activatecontext	__P((u_int context));
+u_int arm_fpe_core_deactivatecontext	__P((void));
+u_int arm_fpe_core_savecontext	__P((u_int context, int *savearea, int pc));
+void arm_fpe_core_loadcontext	__P((u_int context, int *loadarea));
+void arm_fpe_copycontext	__P((u_int c1, u_int c2));
+#endif
+
+#endif