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Diffstat (limited to 'liboffloadmic/runtime/offload_common.cpp')
| -rw-r--r-- | liboffloadmic/runtime/offload_common.cpp | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/liboffloadmic/runtime/offload_common.cpp b/liboffloadmic/runtime/offload_common.cpp new file mode 100644 index 00000000000..72c355f6f18 --- /dev/null +++ b/liboffloadmic/runtime/offload_common.cpp @@ -0,0 +1,190 @@ +/* + Copyright (c) 2014 Intel Corporation. All Rights Reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * 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. + * Neither the name of Intel Corporation nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + 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. +*/ + + +#if defined(LINUX) || defined(FREEBSD) +#include <mm_malloc.h> +#endif + +#include "offload_common.h" + +// The debug routines + +#if OFFLOAD_DEBUG > 0 + +void __dump_bytes( + int trace_level, + const void *data, + int len +) +{ + if (console_enabled > trace_level) { + const uint8_t *arr = (const uint8_t*) data; + char buffer[4096]; + char *bufferp; + int count = 0; + + bufferp = buffer; + while (len--) { + sprintf(bufferp, "%02x", *arr++); + bufferp += 2; + count++; + if ((count&3) == 0) { + sprintf(bufferp, " "); + bufferp++; + } + if ((count&63) == 0) { + OFFLOAD_DEBUG_TRACE(trace_level, "%s\n", buffer); + bufferp = buffer; + count = 0; + } + } + if (count) { + OFFLOAD_DEBUG_TRACE(trace_level, "%s\n", buffer); + } + } +} +#endif // OFFLOAD_DEBUG + +// The Marshaller and associated routines + +void Marshaller::send_data( + const void *data, + int64_t length +) +{ + OFFLOAD_DEBUG_TRACE(2, "send_data(%p, %lld)\n", + data, length); + memcpy(buffer_ptr, data, (size_t)length); + buffer_ptr += length; + tfr_size += length; +} + +void Marshaller::receive_data( + void *data, + int64_t length +) +{ + OFFLOAD_DEBUG_TRACE(2, "receive_data(%p, %lld)\n", + data, length); + memcpy(data, buffer_ptr, (size_t)length); + buffer_ptr += length; + tfr_size += length; +} + +// Send function pointer +void Marshaller::send_func_ptr( + const void* data +) +{ + const char* name; + size_t length; + + if (data != 0) { + name = __offload_funcs.find_name(data); + if (name == 0) { +#if OFFLOAD_DEBUG > 0 + if (console_enabled > 2) { + __offload_funcs.dump(); + } +#endif // OFFLOAD_DEBUG > 0 + + LIBOFFLOAD_ERROR(c_send_func_ptr, data); + exit(1); + } + length = strlen(name) + 1; + } + else { + name = ""; + length = 1; + } + + memcpy(buffer_ptr, name, length); + buffer_ptr += length; + tfr_size += length; +} + +// Receive function pointer +void Marshaller::receive_func_ptr( + const void** data +) +{ + const char* name; + size_t length; + + name = (const char*) buffer_ptr; + if (name[0] != '\0') { + *data = __offload_funcs.find_addr(name); + if (*data == 0) { +#if OFFLOAD_DEBUG > 0 + if (console_enabled > 2) { + __offload_funcs.dump(); + } +#endif // OFFLOAD_DEBUG > 0 + + LIBOFFLOAD_ERROR(c_receive_func_ptr, name); + exit(1); + } + length = strlen(name) + 1; + } + else { + *data = 0; + length = 1; + } + + buffer_ptr += length; + tfr_size += length; +} + +// End of the Marshaller and associated routines + +extern void *OFFLOAD_MALLOC( + size_t size, + size_t align +) +{ + void *ptr; + int err; + + OFFLOAD_DEBUG_TRACE(2, "%s(%lld, %lld)\n", __func__, size, align); + + if (align < sizeof(void*)) { + align = sizeof(void*); + } + + ptr = _mm_malloc(size, align); + if (ptr == NULL) { + LIBOFFLOAD_ERROR(c_offload_malloc, size, align); + exit(1); + } + + OFFLOAD_DEBUG_TRACE(2, "%s returned %p\n", __func__, ptr); + + return ptr; +} |