// // mpu_asm.S - Assembler routine(s) for the MPU // // $Id$ // Copyright (c) 2015 Tensilica Inc. // // 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. #include #include #if defined(__SPLIT__write_map_raw) ||\ defined(__SPLIT__write_map_raw_nw) /* void xthal_write_map_raw( const struct xthal_MPU_entry* map, unsigned n); Updates the MPU with the MPU entries provided: map pointer to array of MPU entries n number of entries in array (0 <= n <= XCHAL_MPU_ENTRIES) The entries provided must have monotonically increasing addresses. This function otherwise orders its updates to ensure the MPU always has all its entries in monotonically increasing sequence. on entry a2 => vector of MPU entries to write a3 => number of entries to write a4-a7 => destroyed */ DECLFUNC (xthal_write_map_raw) abi_entry mpu_write_map a2, a3, a4, a5, a6, a7 abi_return endfunc #endif /* void xthal_read_map_raw(struct xthal_MPU_entry* map); Reads the current map from the MPU and puts it the vector pointed to by map. a2 => vector of MPU entries where the current MPU state is copied a3-a4 => destroyed */ #if defined(__SPLIT__read_map_raw) ||\ defined(__SPLIT__read_map_raw_nw) DECLFUNC (xthal_read_map_raw) abi_entry mpu_read_map a2, a3, a4 abi_return endfunc #endif