| /* workitems.h -- Types for context data passed as hidden parameters to special |
| built-ins. |
| |
| Copyright (C) 2015-2019 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 |
| { |
| /* 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; |
| |
| /* The group id of the currently executed WG. This is for fiber based |
| execution. The group ids are duplicated also to the per WI context |
| struct for simplified single pointer access in the GCCBRIG produced |
| code. |
| */ |
| |
| uint32_t x; |
| uint32_t y; |
| uint32_t z; |
| |
| } PHSAWorkGroup; |
| |
| /* Data identifying a single work-item, passed to the work-item thread in case |
| of a fiber based work-group execution. */ |
| |
| typedef struct |
| { |
| /* NOTE: These members STARTing here should not be moved as they are |
| accessed directly by code emitted by BRIG FE. */ |
| |
| /* The local id of the current WI. */ |
| |
| uint32_t x; |
| uint32_t y; |
| uint32_t z; |
| |
| /* The group id of the currently executed WG. */ |
| |
| uint32_t group_x; |
| uint32_t group_y; |
| uint32_t group_z; |
| |
| /* The local size of a complete WG. */ |
| |
| uint32_t wg_size_x; |
| uint32_t wg_size_y; |
| uint32_t wg_size_z; |
| |
| /* The local size of the current WG. */ |
| |
| uint32_t cur_wg_size_x; |
| uint32_t cur_wg_size_y; |
| uint32_t cur_wg_size_z; |
| |
| /* NOTE: Fixed members END here. */ |
| |
| PHSAKernelLaunchData *launch_data; |
| /* Identifies and keeps book of the currently executed WG of the WI swarm. */ |
| volatile PHSAWorkGroup *wg; |
| #ifdef HAVE_FIBERS |
| fiber_t fiber; |
| #endif |
| } __attribute__((packed)) PHSAWorkItem; |
| |
| |
| #endif |