svn commit: r230270 - in head/sys: amd64/include i386/include

[Konstantin Belousov]

Author: kib
Date: Tue Jan 17 17:07:13 2012
New Revision: 230270
URL: http://svn.freebsd.org/changeset/base/230270

Log:
  Add definitions for the FPU extended state header, legacy extended
  state and AVX state.
  
  MFC after:	1 week

Modified:
  head/sys/amd64/include/fpu.h
  head/sys/i386/include/npx.h

Modified: head/sys/amd64/include/fpu.h
==============================================================================
--- head/sys/amd64/include/fpu.h	Tue Jan 17 16:53:41 2012	(r230269)
+++ head/sys/amd64/include/fpu.h	Tue Jan 17 17:07:13 2012	(r230270)
@@ -78,6 +78,28 @@ struct  savefpu {
 	uint8_t sv_pad[96];
 } __aligned(16);
 
+struct xstate_hdr {
+	uint64_t xstate_bv;
+	uint8_t xstate_rsrv0[16];
+	uint8_t	xstate_rsrv[40];
+};
+
+struct savefpu_xstate {
+	struct xstate_hdr sx_hd;
+	struct ymmacc	sx_ymm[16];
+};
+
+struct savefpu_ymm {
+	struct	envxmm	sv_env;
+	struct {
+		struct fpacc87	fp_acc;
+		int8_t		fp_pad[6];      /* padding */
+	} sv_fp[8];
+	struct xmmacc	sv_xmm[16];
+	uint8_t sv_pad[96];
+	struct savefpu_xstate sv_xstate;
+} __aligned(64);
+
 #ifdef _KERNEL
 struct fpu_kern_ctx {
 	struct savefpu hwstate;

Modified: head/sys/i386/include/npx.h
==============================================================================
--- head/sys/i386/include/npx.h	Tue Jan 17 16:53:41 2012	(r230269)
+++ head/sys/i386/include/npx.h	Tue Jan 17 17:07:13 2012	(r230270)
@@ -101,6 +101,11 @@ struct  xmmacc {
 	u_char	xmm_bytes[16];
 };
 
+/* Contents of the upper 16 bytes of each AVX extended accumulator */
+struct  ymmacc {
+	uint8_t  ymm_bytes[16];
+};
+
 struct  savexmm {
 	struct	envxmm	sv_env;
 	struct {
@@ -116,6 +121,28 @@ union	savefpu {
 	struct	savexmm	sv_xmm;
 };
 
+struct xstate_hdr {
+	uint64_t xstate_bv;
+	uint8_t xstate_rsrv0[16];
+	uint8_t	xstate_rsrv[40];
+};
+
+struct savexmm_xstate {
+	struct xstate_hdr sx_hd;
+	struct ymmacc	sx_ymm[16];
+};
+
+struct savexmm_ymm {
+	struct	envxmm	sv_env;
+	struct {
+		struct fpacc87	fp_acc;
+		int8_t		fp_pad[6];      /* padding */
+	} sv_fp[8];
+	struct xmmacc	sv_xmm[16];
+	uint8_t sv_pad[96];
+	struct savexmm_xstate sv_xstate;
+} __aligned(64);
+
 /*
  * The hardware default control word for i387's and later coprocessors is
  * 0x37F, giving: