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/* Copyright (C) 2008-2016 Free Software Foundation, Inc.
This file is part of the UPC runtime library.
Written by Gary Funck <gary@intrepid.com>
and Nenad Vukicevic <nenad@intrepid.com>
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _UPC_PTS_H_
#define _UPC_PTS_H_ 1
//begin lib_pts_defs
/* UPC pointer representation */
#if (defined(GUPCR_PTS_STRUCT_REP) + defined(GUPCR_PTS_WORD_PAIR_REP) \
+ defined(GUPCR_PTS_PACKED_REP)) == 0
# error Unknown PTS representation.
#elif (defined(GUPCR_PTS_STRUCT_REP) + defined(GUPCR_PTS_WORD_PAIR_REP) \
+ defined(GUPCR_PTS_PACKED_REP)) != 1
# error Only one UPC shared pointer representation setting is permitted.
#endif
#ifdef GUPCR_PTS_STRUCT_REP
#if GUPCR_PTS_THREAD_SIZE == 32
#undef GUPCR_PTS_THREAD_TYPE
#define GUPCR_PTS_THREAD_TYPE u_intSI_t
#elif GUPCR_PTS_THREAD_SIZE == 16
#undef GUPCR_PTS_THREAD_TYPE
#define GUPCR_PTS_THREAD_TYPE u_intHI_t
#endif
#if GUPCR_PTS_PHASE_SIZE == 32
#undef GUPCR_PTS_PHASE_TYPE
#define GUPCR_PTS_PHASE_TYPE u_intSI_t
#elif GUPCR_PTS_PHASE_SIZE == 16
#undef GUPCR_PTS_PHASE_TYPE
#define GUPCR_PTS_PHASE_TYPE u_intHI_t
#endif
#if !__GCC_UPC__
/* The UPC compiler pre-defines upc_shared_ptr_t to be the
representation of a shared pointer. Since most of the
runtime is written in regular "C", we need to define
the pointer representation here. */
typedef struct shared_ptr_struct
{
#if GUPCR_PTS_VADDR_FIRST
GUPCR_PTS_VADDR_TYPE vaddr;
GUPCR_PTS_THREAD_TYPE thread;
GUPCR_PTS_PHASE_TYPE phase;
#else
GUPCR_PTS_PHASE_TYPE phase;
GUPCR_PTS_THREAD_TYPE thread;
GUPCR_PTS_VADDR_TYPE vaddr;
#endif
} upc_shared_ptr_t
#ifdef GUPCR_PTS_ALIGN
__attribute__ ((aligned (GUPCR_PTS_ALIGN)))
#endif
;
typedef upc_shared_ptr_t *upc_shared_ptr_p;
/* upc_dbg_shared_ptr_t is used by debugger to figure out
shared pointer layout */
typedef upc_shared_ptr_t upc_dbg_shared_ptr_t;
#endif
#define GUPCR_PTS_TO_REP(V) *((upc_shared_ptr_t *)&(V))
#define GUPCR_PTS_IS_NULL(P) (!(P).vaddr && !(P).thread && !(P).phase)
#define GUPCR_PTS_SET_NULL_SHARED(P) \
{(P).vaddr = 0; (P).thread = 0; (P).phase = 0;}
#define GUPCR_PTS_VADDR(P) ((size_t)(P).vaddr - (size_t)GUPCR_SHARED_SECTION_START)
#define GUPCR_PTS_OFFSET(P) ((size_t)(P).vaddr - (size_t)GUPCR_SHARED_SECTION_START)
#define GUPCR_PTS_THREAD(P) (P).thread
#define GUPCR_PTS_PHASE(P) (P).phase
#define GUPCR_PTS_SET_VADDR(P,V) (P).vaddr = (GUPCR_PTS_VADDR_TYPE)((char *)(V) \
+ (size_t)GUPCR_SHARED_SECTION_START)
#define GUPCR_PTS_INCR_VADDR(P,V) (P).vaddr += ((size_t)(V))
#define GUPCR_PTS_SET_THREAD(P,V) (P).thread = (size_t)(V)
#define GUPCR_PTS_SET_PHASE(P,V) (P).phase = (size_t)(V)
#elif GUPCR_PTS_PACKED_REP
#if GUPCR_PTS_VADDR_FIRST
#define GUPCR_PTS_VADDR_SHIFT (GUPCR_PTS_THREAD_SHIFT + GUPCR_PTS_THREAD_SIZE)
#define GUPCR_PTS_THREAD_SHIFT GUPCR_PTS_PHASE_SIZE
#define GUPCR_PTS_PHASE_SHIFT 0
#else
#define GUPCR_PTS_VADDR_SHIFT 0
#define GUPCR_PTS_THREAD_SHIFT GUPCR_PTS_VADDR_SIZE
#define GUPCR_PTS_PHASE_SHIFT (GUPCR_PTS_THREAD_SHIFT + GUPCR_PTS_THREAD_SIZE)
#endif
#define GUPCR_PTS_TO_REP(V) *((upc_shared_ptr_t *)&(V))
#if GUPCR_TARGET64
#define GUPCR_ONE 1UL
#define GUPCR_PTS_REP_T unsigned long
#else
#define GUPCR_ONE 1ULL
#define GUPCR_PTS_REP_T unsigned long long
#endif
#define GUPCR_PTS_VADDR_MASK ((GUPCR_ONE << GUPCR_PTS_VADDR_SIZE) - GUPCR_ONE)
#define GUPCR_PTS_THREAD_MASK ((GUPCR_ONE << GUPCR_PTS_THREAD_SIZE) - GUPCR_ONE)
#define GUPCR_PTS_PHASE_MASK ((GUPCR_ONE << GUPCR_PTS_PHASE_SIZE) - GUPCR_ONE)
#if !__GCC_UPC__
/* upc_dbg_shared_ptr_t is used by debugger to figure out
shared pointer layout */
typedef struct shared_ptr_struct
{
#if GUPCR_PTS_VADDR_FIRST
unsigned long long vaddr:GUPCR_PTS_VADDR_SIZE;
unsigned int thread:GUPCR_PTS_THREAD_SIZE;
unsigned int phase:GUPCR_PTS_PHASE_SIZE;
#else
unsigned int phase:GUPCR_PTS_PHASE_SIZE;
unsigned int thread:GUPCR_PTS_THREAD_SIZE;
unsigned long long vaddr:GUPCR_PTS_VADDR_SIZE;
#endif
} upc_dbg_shared_ptr_t;
typedef GUPCR_PTS_REP_T upc_shared_ptr_t;
typedef upc_shared_ptr_t *upc_shared_ptr_p;
#endif
#define GUPCR_PTS_IS_NULL(P) !(P)
#define GUPCR_PTS_SET_NULL_SHARED(P) { (P) = 0; }
/* Access functions are optimized for a representation of the
form (vaddr,thread,phase) and where the value is unsigned.
Thus, right shift is logical (not arithmetic), and masking
is avoided for vaddr, and shifting is avoided for phase.
Further, the value being inserted must fit into the field.
It will not be masked. */
#define GUPCR_PTS_VADDR(P) \
(void *)((size_t)((P)>>GUPCR_PTS_VADDR_SHIFT & GUPCR_PTS_VADDR_MASK))
#define GUPCR_PTS_THREAD(P) ((size_t)((P)>>GUPCR_PTS_THREAD_SHIFT & GUPCR_PTS_THREAD_MASK))
#define GUPCR_PTS_PHASE(P) ((size_t)((P)>>GUPCR_PTS_PHASE_SHIFT & GUPCR_PTS_PHASE_MASK))
#define GUPCR_PTS_OFFSET(P) ((size_t)((P)>>GUPCR_PTS_VADDR_SHIFT & GUPCR_PTS_VADDR_MASK))
#define GUPCR_PTS_SET_VADDR(P,V) \
(P) = ((P) & ~(GUPCR_PTS_VADDR_MASK << GUPCR_PTS_VADDR_SHIFT)) \
| ((GUPCR_PTS_REP_T)(V) << GUPCR_PTS_VADDR_SHIFT)
#define GUPCR_PTS_SET_THREAD(P,V) (P) = ((P) & ~(GUPCR_PTS_THREAD_MASK << GUPCR_PTS_THREAD_SHIFT)) \
| ((GUPCR_PTS_REP_T)(V) << GUPCR_PTS_THREAD_SHIFT)
#define GUPCR_PTS_SET_PHASE(P,V) (P) = ((P) & ~(GUPCR_PTS_PHASE_MASK << GUPCR_PTS_PHASE_SHIFT)) \
| ((GUPCR_PTS_REP_T)(V) << GUPCR_PTS_PHASE_SHIFT)
#define GUPCR_PTS_INCR_VADDR(P,V) \
((P) += ((GUPCR_PTS_REP_T)(V) << GUPCR_PTS_VADDR_SHIFT))
#elif GUPCR_PTS_WORD_PAIR_REP
#error UPC word pair representation is unsupported.
#endif /* GUPCR_PTS_*_REP__ */
//end lib_pts_defs
#endif /* !_UPC_PTS_H_ */
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