113 lines
3.8 KiB
C
113 lines
3.8 KiB
C
/* workitems.h -- Types for context data passed as hidden parameters to special
|
|
built-ins.
|
|
|
|
Copyright (C) 2015-2018 Free Software Foundation, Inc.
|
|
Contributed by Pekka Jaaskelainen <pekka.jaaskelainen@parmance.com>
|
|
for General Processor Tech.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a
|
|
copy of this software and associated documentation files
|
|
(the "Software"), to deal in the Software without restriction, including
|
|
without limitation the rights to use, copy, modify, merge, publish,
|
|
distribute, sublicense, and/or sell copies of the Software, and to
|
|
permit persons to whom the Software is furnished to do so, subject to
|
|
the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included
|
|
in all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef PHSA_RT_WORKITEMS_H
|
|
#define PHSA_RT_WORKITEMS_H
|
|
|
|
/* As the simple fibers implementation relies only on ucontext, we can
|
|
assume is found by default as it is part of glibc. However, for partial
|
|
HSAIL support on platforms without having it available, the following define
|
|
can be undefined. */
|
|
#define HAVE_FIBERS
|
|
|
|
#ifdef HAVE_FIBERS
|
|
#include "fibers.h"
|
|
#endif
|
|
|
|
#include <stdint.h>
|
|
#include "phsa-rt.h"
|
|
|
|
/* Data identifying a single work-group instance. */
|
|
|
|
typedef struct
|
|
{
|
|
/* The group id of the currently executed WG. */
|
|
size_t x;
|
|
size_t y;
|
|
size_t z;
|
|
|
|
/* This is 1 in case there are more work groups to execute.
|
|
If 0, the work-item threads should finish themselves. */
|
|
int more_wgs;
|
|
|
|
/* If the local size does not evenly divide the grid size, will have
|
|
leftover WIs in the last execution. */
|
|
int leftover_wg;
|
|
int last_wg;
|
|
|
|
/* (Flat) pointer to the beginning of the group segment allocated
|
|
to the work-group. */
|
|
void *group_base_ptr;
|
|
|
|
/* The offset in the group memory for the kernel local group variables.
|
|
To support module scope group variables, there might be need to preseve
|
|
room for them in the beginning of the group segment. */
|
|
uint32_t initial_group_offset;
|
|
|
|
/* Similarly to the private segment that gets space allocated for all
|
|
WIs in the work-group. */
|
|
void *private_base_ptr;
|
|
uint32_t private_segment_total_size;
|
|
|
|
/* The first flat address of the group segment allocated for
|
|
the given work group. */
|
|
uint64_t group_segment_base_addr;
|
|
|
|
/* Offset from the beginning of the private segment to the start of
|
|
the previously allocated chunk of dynamic work-item memory (alloca)
|
|
by any WI in the WG.
|
|
|
|
Initially set to private_segment_total_size to denote no dynamic
|
|
allocations have been made. The dynamic allocations are done downwards
|
|
from the private segment end. */
|
|
uint32_t alloca_stack_p;
|
|
/* The position of the first word in the current function's alloca
|
|
stack frame. Initialized to point outside the private segment. */
|
|
uint32_t alloca_frame_p;
|
|
|
|
} PHSAWorkGroup;
|
|
|
|
/* Data identifying a single work-item, passed to the work-item thread in case
|
|
of a fiber based work-group execution. */
|
|
|
|
typedef struct
|
|
{
|
|
PHSAKernelLaunchData *launch_data;
|
|
/* Identifies and keeps book of the currently executed WG of the WI swarm. */
|
|
volatile PHSAWorkGroup *wg;
|
|
/* The local id of the current WI. */
|
|
size_t x;
|
|
size_t y;
|
|
size_t z;
|
|
#ifdef HAVE_FIBERS
|
|
fiber_t fiber;
|
|
#endif
|
|
} PHSAWorkItem;
|
|
|
|
|
|
#endif
|