* Copyright (c) 2000-2012 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
-/*
+/*
* Mach Operating System
* Copyright (c) 1991 Carnegie Mellon University
* All Rights Reserved.
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
- *
+ *
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
+ *
* Carnegie Mellon requests users of this software to return to
- *
+ *
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie Mellon
+ *
+ * any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
-#ifndef _I386_FPU_H_
-#define _I386_FPU_H_
+#ifndef _I386_FPU_H_
+#define _I386_FPU_H_
/*
* Macro definitions for routines to manipulate the
#include <mach/i386/thread_status.h>
#include <i386/proc_reg.h>
-typedef enum {
- FXSAVE32 = 1,
- FXSAVE64 = 2,
- XSAVE32 = 3,
- XSAVE64 = 4,
- FP_UNUSED = 5
- } fp_save_layout_t;
+#define FP_XMASK ((uint32_t) (XFEM_X87 | XFEM_SSE))
+#define AVX_XMASK ((uint32_t) (XFEM_X87 | XFEM_SSE | XFEM_YMM))
+#define AVX512_XMASK ((uint32_t) (XFEM_X87 | XFEM_SSE | XFEM_YMM | XFEM_ZMM))
+typedef enum {
+ FXSAVE32 = 1,
+ FXSAVE64 = 2,
+ XSAVE32 = 3,
+ XSAVE64 = 4,
+ FP_UNUSED = 5
+} fp_save_layout_t;
+
+#define STATE64_FULL 0x10
typedef enum {
UNDEFINED,
FP,
AVX,
-#if !defined(RC_HIDE_XNU_J137)
- AVX512
-#endif
+ AVX512,
+ /*
+ * The following states are never associated with a thread or task.
+ * They are used for array declarations of data used during signal dispatch,
+ * but these values are never assigned to threads' (or tasks') xstate members.
+ */
+ UNDEFINED_FULL = UNDEFINED | STATE64_FULL,
+ FP_FULL = FP | STATE64_FULL,
+ AVX_FULL = AVX | STATE64_FULL,
+ AVX512_FULL = AVX512 | STATE64_FULL,
} xstate_t;
-extern void init_fpu(void);
-extern void fpu_module_init(void);
-extern void fpu_free(
- thread_t thr_act,
- void *fps);
-extern kern_return_t fpu_set_fxstate(
- thread_t thr_act,
- thread_state_t state,
- thread_flavor_t f);
-extern kern_return_t fpu_get_fxstate(
- thread_t thr_act,
- thread_state_t state,
- thread_flavor_t f);
-extern void fpu_dup_fxstate(
- thread_t parent,
- thread_t child);
-extern void fpnoextflt(void);
-extern void fpextovrflt(void);
-extern void fpexterrflt(void);
-extern void fpSSEexterrflt(void);
-extern void fpflush(thread_t);
-extern void fp_setvalid(boolean_t);
+static inline uint64_t
+xgetbv(uint32_t c)
+{
+ uint32_t mask_hi, mask_lo;
+ __asm__ __volatile__ ("xgetbv" : "=a"(mask_lo), "=d"(mask_hi) : "c" (c));
+ return ((uint64_t) mask_hi << 32) + (uint64_t) mask_lo;
+}
+
+static inline void
+xsetbv(uint32_t mask_hi, uint32_t mask_lo)
+{
+ __asm__ __volatile__ ("xsetbv" :: "a"(mask_lo), "d"(mask_hi), "c" (XCR0));
+}
-extern void clear_fpu(void);
-extern void fpu_switch_context(
- thread_t old,
- thread_t new);
-extern void fpu_switch_addrmode(
- thread_t thread,
- boolean_t is_64bit);
+extern void init_fpu(void);
+extern void fpu_module_init(void);
+extern void fpu_free(
+ thread_t thr_act,
+ void *fps);
+extern kern_return_t fpu_set_fxstate(
+ thread_t thr_act,
+ thread_state_t state,
+ thread_flavor_t f);
+extern kern_return_t fpu_get_fxstate(
+ thread_t thr_act,
+ thread_state_t state,
+ thread_flavor_t f);
+extern void fpu_dup_fxstate(
+ thread_t parent,
+ thread_t child);
+extern void fpnoextflt(void);
+extern void fpextovrflt(void);
+extern void fpexterrflt(void);
+extern void fpSSEexterrflt(void);
+extern void fpflush(thread_t);
+extern void fp_setvalid(boolean_t);
-extern xstate_t fpu_default;
-extern xstate_t current_xstate(void);
-extern void fpUDflt(user_addr_t rip);
+extern void clear_fpu(void);
+extern void fpu_switch_context(
+ thread_t old,
+ thread_t new);
+extern void fpu_switch_addrmode(
+ thread_t thread,
+ boolean_t is_64bit);
-#endif /* _I386_FPU_H_ */
+extern xstate_t fpu_default;
+extern xstate_t fpu_capability;
+extern xstate_t current_xstate(void);
+extern int fpUDflt(user_addr_t rip);
+#ifdef MACH_KERNEL_PRIVATE
+extern uint32_t thread_fpsimd_hash(thread_t);
+extern void vzeroall(void);
+extern void xmmzeroall(void);
+extern void avx512_zero(void);
+#endif /* MKP */
+#endif /* _I386_FPU_H_ */
projects / apple / xnu.git / blobdiff