3 * Copyright 2007 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
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8 * it under the terms of the GNU General Public License as published by
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 #ifndef INCLUDED_GCELL_GC_SPU_ARGS_H
22 #define INCLUDED_GCELL_GC_SPU_ARGS_H
24 #include <gcell/gc_types.h>
25 #include <gcell/gc_logging.h>
27 // args passed to SPE at initialization time
29 typedef struct gc_spu_args {
30 gc_eaddr_t queue; // address of job queue (gc_jd_queue_t *)
31 gc_eaddr_t comp_info[2]; // completion info (gc_comp_info_t *)
32 uint32_t spu_idx; // which spu we are: [0,nspus-1]
33 uint32_t nspus; // number of spus we're using
34 uint32_t proc_def_ls_addr; // LS addr of proc_def table
35 uint32_t nproc_defs; // number of proc_defs in table
36 gc_log_t log; // logging info
37 } _AL16 gc_spu_args_t;
40 #define GC_CI_NJOBS 62 // makes gc_comp_info 1 cache line long
43 * \brief Used to return info to PPE on which jobs are completed.
45 * When each SPE is initalized, it is passed EA pointers to two of
46 * these structures. The SPE uses these to communicate which jobs
47 * that it has worked on are complete. The SPE notifies the PPE by
48 * sending an OP_JOBS_DONE message (see gc_mbox.h) with an argument of
49 * 0 or 1, indicating which of the two comp_info's to examine. The
50 * SPE sets the in_use flag to 1 before DMA'ing to the PPE. When the
51 * PPE is done with the structure, it must clear the in_use field to
52 * let the SPE know it can begin using it again.
54 typedef struct gc_comp_info {
55 uint16_t in_use; // set by SPE, cleared by PPE when it's finished
56 uint16_t ncomplete; // number of valid job_id's
57 uint16_t job_id[GC_CI_NJOBS]; // job_id's of completed jobs
58 } _AL128 gc_comp_info_t;
60 #endif /* INCLUDED_GCELL_GC_SPU_ARGS_H */