| // Copyright 2013, ARM Limited |
| // 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 ARM Limited 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 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 OWNER 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. |
| |
| #ifndef VIXL_CPU_A64_H |
| #define VIXL_CPU_A64_H |
| |
| #include "globals.h" |
| |
| namespace vixl { |
| |
| class CPU { |
| public: |
| // Initialise CPU support. |
| static void SetUp(); |
| |
| // Ensures the data at a given address and with a given size is the same for |
| // the I and D caches. I and D caches are not automatically coherent on ARM |
| // so this operation is required before any dynamically generated code can |
| // safely run. |
| static void EnsureIAndDCacheCoherency(void *address, size_t length); |
| |
| private: |
| // Return the content of the cache type register. |
| static uint32_t GetCacheType(); |
| |
| // I and D cache line size in bytes. |
| static unsigned icache_line_size_; |
| static unsigned dcache_line_size_; |
| }; |
| |
| } // namespace vixl |
| |
| #endif // VIXL_CPU_A64_H |