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:
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