X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-arm%2Ffpstate.h;h=f31cda5a55eeb04d7031c227ec7b1071c77338fd;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=785749b3c5ab909c76b1a634b79555634c910bda;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/include/asm-arm/fpstate.h b/include/asm-arm/fpstate.h
index 785749b3c..f31cda5a5 100644
--- a/include/asm-arm/fpstate.h
+++ b/include/asm-arm/fpstate.h
@@ -11,19 +11,78 @@
 #ifndef __ASM_ARM_FPSTATE_H
 #define __ASM_ARM_FPSTATE_H
 
-#define FP_SIZE 35
+
+#ifndef __ASSEMBLY__
+
+/*
+ * VFP storage area has:
+ *  - FPEXC, FPSCR, FPINST and FPINST2.
+ *  - 16 double precision data registers
+ *  - an implementation-dependant word of state for FLDMX/FSTMX
+ * 
+ *  FPEXC will always be non-zero once the VFP has been used in this process.
+ */
+
+struct vfp_hard_struct {
+	__u64 fpregs[16];
+#if __LINUX_ARM_ARCH__ < 6
+	__u32 fpmx_state;
+#endif
+	__u32 fpexc;
+	__u32 fpscr;
+	/*
+	 * VFP implementation specific state
+	 */
+	__u32 fpinst;
+	__u32 fpinst2;
+#ifdef CONFIG_SMP
+	__u32 cpu;
+#endif
+};
+
+union vfp_state {
+	struct vfp_hard_struct	hard;
+};
+
+extern void vfp_flush_thread(union vfp_state *);
+extern void vfp_release_thread(union vfp_state *);
+
+#define FP_HARD_SIZE 35
 
 struct fp_hard_struct {
-	unsigned int save[FP_SIZE];		/* as yet undefined */
+	unsigned int save[FP_HARD_SIZE];		/* as yet undefined */
 };
 
+#define FP_SOFT_SIZE 35
+
 struct fp_soft_struct {
-	unsigned int save[FP_SIZE];		/* undefined information */
+	unsigned int save[FP_SOFT_SIZE];		/* undefined information */
+};
+
+#define IWMMXT_SIZE	0x98
+
+struct iwmmxt_struct {
+	unsigned int save[IWMMXT_SIZE / sizeof(unsigned int)];
 };
 
 union fp_state {
 	struct fp_hard_struct	hard;
 	struct fp_soft_struct	soft;
+#ifdef CONFIG_IWMMXT
+	struct iwmmxt_struct	iwmmxt;
+#endif
 };
 
+#define FP_SIZE (sizeof(union fp_state) / sizeof(int))
+
+struct crunch_state {
+	unsigned int	mvdx[16][2];
+	unsigned int	mvax[4][3];
+	unsigned int	dspsc[2];
+};
+
+#define CRUNCH_SIZE	sizeof(struct crunch_state)
+
+#endif
+
 #endif