forked from OSchip/llvm-project
137 lines
5.0 KiB
C
137 lines
5.0 KiB
C
/*===---- lwpintrin.h - LWP intrinsics -------------------------------------===
|
|
*
|
|
* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
* See https://llvm.org/LICENSE.txt for license information.
|
|
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
*
|
|
*===-----------------------------------------------------------------------===
|
|
*/
|
|
|
|
#ifndef __X86INTRIN_H
|
|
#error "Never use <lwpintrin.h> directly; include <x86intrin.h> instead."
|
|
#endif
|
|
|
|
#ifndef __LWPINTRIN_H
|
|
#define __LWPINTRIN_H
|
|
|
|
/* Define the default attributes for the functions in this file. */
|
|
#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("lwp")))
|
|
|
|
/// Parses the LWPCB at the specified address and enables
|
|
/// profiling if valid.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the <c> LLWPCB </c> instruction.
|
|
///
|
|
/// \param __addr
|
|
/// Address to the new Lightweight Profiling Control Block (LWPCB). If the
|
|
/// LWPCB is valid, writes the address into the LWP_CBADDR MSR and enables
|
|
/// Lightweight Profiling.
|
|
static __inline__ void __DEFAULT_FN_ATTRS
|
|
__llwpcb (void *__addr)
|
|
{
|
|
__builtin_ia32_llwpcb(__addr);
|
|
}
|
|
|
|
/// Flushes the LWP state to memory and returns the address of the LWPCB.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the <c> SLWPCB </c> instruction.
|
|
///
|
|
/// \return
|
|
/// Address to the current Lightweight Profiling Control Block (LWPCB).
|
|
/// If LWP is not currently enabled, returns NULL.
|
|
static __inline__ void* __DEFAULT_FN_ATTRS
|
|
__slwpcb (void)
|
|
{
|
|
return __builtin_ia32_slwpcb();
|
|
}
|
|
|
|
/// Inserts programmed event record into the LWP event ring buffer
|
|
/// and advances the ring buffer pointer.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the <c> LWPINS </c> instruction.
|
|
///
|
|
/// \param DATA2
|
|
/// A 32-bit value is zero-extended and inserted into the 64-bit Data2 field.
|
|
/// \param DATA1
|
|
/// A 32-bit value is inserted into the 32-bit Data1 field.
|
|
/// \param FLAGS
|
|
/// A 32-bit immediate value is inserted into the 32-bit Flags field.
|
|
/// \returns If the ring buffer is full and LWP is running in Synchronized Mode,
|
|
/// the event record overwrites the last record in the buffer, the MissedEvents
|
|
/// counter in the LWPCB is incremented, the head pointer is not advanced, and
|
|
/// 1 is returned. Otherwise 0 is returned.
|
|
#define __lwpins32(DATA2, DATA1, FLAGS) \
|
|
(__builtin_ia32_lwpins32((unsigned int) (DATA2), (unsigned int) (DATA1), \
|
|
(unsigned int) (FLAGS)))
|
|
|
|
/// Decrements the LWP programmed value sample event counter. If the result is
|
|
/// negative, inserts an event record into the LWP event ring buffer in memory
|
|
/// and advances the ring buffer pointer.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the <c> LWPVAL </c> instruction.
|
|
///
|
|
/// \param DATA2
|
|
/// A 32-bit value is zero-extended and inserted into the 64-bit Data2 field.
|
|
/// \param DATA1
|
|
/// A 32-bit value is inserted into the 32-bit Data1 field.
|
|
/// \param FLAGS
|
|
/// A 32-bit immediate value is inserted into the 32-bit Flags field.
|
|
#define __lwpval32(DATA2, DATA1, FLAGS) \
|
|
(__builtin_ia32_lwpval32((unsigned int) (DATA2), (unsigned int) (DATA1), \
|
|
(unsigned int) (FLAGS)))
|
|
|
|
#ifdef __x86_64__
|
|
|
|
/// Inserts programmed event record into the LWP event ring buffer
|
|
/// and advances the ring buffer pointer.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the <c> LWPINS </c> instruction.
|
|
///
|
|
/// \param DATA2
|
|
/// A 64-bit value is inserted into the 64-bit Data2 field.
|
|
/// \param DATA1
|
|
/// A 32-bit value is inserted into the 32-bit Data1 field.
|
|
/// \param FLAGS
|
|
/// A 32-bit immediate value is inserted into the 32-bit Flags field.
|
|
/// \returns If the ring buffer is full and LWP is running in Synchronized Mode,
|
|
/// the event record overwrites the last record in the buffer, the MissedEvents
|
|
/// counter in the LWPCB is incremented, the head pointer is not advanced, and
|
|
/// 1 is returned. Otherwise 0 is returned.
|
|
#define __lwpins64(DATA2, DATA1, FLAGS) \
|
|
(__builtin_ia32_lwpins64((unsigned long long) (DATA2), (unsigned int) (DATA1), \
|
|
(unsigned int) (FLAGS)))
|
|
|
|
/// Decrements the LWP programmed value sample event counter. If the result is
|
|
/// negative, inserts an event record into the LWP event ring buffer in memory
|
|
/// and advances the ring buffer pointer.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the <c> LWPVAL </c> instruction.
|
|
///
|
|
/// \param DATA2
|
|
/// A 64-bit value is and inserted into the 64-bit Data2 field.
|
|
/// \param DATA1
|
|
/// A 32-bit value is inserted into the 32-bit Data1 field.
|
|
/// \param FLAGS
|
|
/// A 32-bit immediate value is inserted into the 32-bit Flags field.
|
|
#define __lwpval64(DATA2, DATA1, FLAGS) \
|
|
(__builtin_ia32_lwpval64((unsigned long long) (DATA2), (unsigned int) (DATA1), \
|
|
(unsigned int) (FLAGS)))
|
|
|
|
#endif
|
|
|
|
#undef __DEFAULT_FN_ATTRS
|
|
|
|
#endif /* __LWPINTRIN_H */
|