diff options
Diffstat (limited to 'lib/libmpa/mpa_init.c')
-rw-r--r-- | lib/libmpa/mpa_init.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/lib/libmpa/mpa_init.c b/lib/libmpa/mpa_init.c new file mode 100644 index 0000000..35a6356 --- /dev/null +++ b/lib/libmpa/mpa_init.c @@ -0,0 +1,69 @@ +/* + * Copyright (c) 2014, STMicroelectronics International N.V. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "mpa.h" + +/* + * mpa_init_static + */ +void mpa_init_static(mpanum src, uint32_t len) +{ + src->alloc = U32_TO_ASIZE(len - MPA_NUMBASE_METADATA_SIZE_IN_U32); + src->size = 0; + if (src->alloc > 0) + src->d[0] = 0; +} + +/*------------------------------------------------------------ + * + * mpa_InitStaticFMMContext + * + */ +void mpa_init_static_fmm_context(mpa_fmm_context_base *context, uint32_t len) +{ + mpa_asize_t m_alloc; + + m_alloc = + U32_TO_ASIZE((mpa_asize_t) len - + (mpa_asize_t) MPA_FMM_CONTEXT_METADATA_SIZE_IN_U32); + /* clear the array before halfing into r and r2 */ + mpa_memset(context->m, 0, m_alloc * BYTES_PER_WORD); + m_alloc /= 2; + + /* setup context content */ + context->n_inv = 0; + + context->r_ptr = (void *)context->m; + context->r_ptr->alloc = + m_alloc - U32_TO_ASIZE(MPA_NUMBASE_METADATA_SIZE_IN_U32); + context->r_ptr->size = 0; + + context->r2_ptr = (void *)(context->m + m_alloc); + context->r2_ptr->alloc = + m_alloc - U32_TO_ASIZE(MPA_NUMBASE_METADATA_SIZE_IN_U32); + context->r2_ptr->size = 0; +} |