2009-09-08 12:08:10 +00:00
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/* PCSX2 - PS2 Emulator for PCs
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2010-05-03 14:08:02 +00:00
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* Copyright (C) 2002-2010 PCSX2 Dev Team
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2009-09-21 09:48:31 +00:00
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*
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2009-09-08 12:08:10 +00:00
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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2009-07-03 00:49:40 +00:00
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*
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2009-09-08 12:08:10 +00:00
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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2009-07-03 00:49:40 +00:00
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*/
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#pragma once
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2021-09-01 20:31:46 +00:00
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#include <atomic>
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2022-05-18 13:27:23 +00:00
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#include <string>
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2021-09-01 20:31:46 +00:00
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#include "common/Pcsx2Defs.h"
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2010-01-22 15:22:01 +00:00
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// This macro is actually useful for about any and every possible application of C++
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// equality operators.
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2016-11-12 15:28:37 +00:00
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#define OpEqu(field) (field == right.field)
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2010-01-22 15:22:01 +00:00
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// Macro used for removing some of the redtape involved in defining bitfield/union helpers.
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//
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2016-11-12 15:28:37 +00:00
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#define BITFIELD32() \
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2021-09-06 18:28:26 +00:00
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union \
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{ \
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u32 bitset; \
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struct \
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{
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2010-01-22 15:22:01 +00:00
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2016-11-12 15:28:37 +00:00
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#define BITFIELD_END \
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2021-09-06 18:28:26 +00:00
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}; \
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};
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2010-01-22 15:22:01 +00:00
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// --------------------------------------------------------------------------------------
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2010-10-22 16:23:52 +00:00
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// PageProtectionMode
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// --------------------------------------------------------------------------------------
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class PageProtectionMode
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2009-07-03 00:49:40 +00:00
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{
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2010-10-22 16:23:52 +00:00
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protected:
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2021-09-06 18:28:26 +00:00
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bool m_read;
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bool m_write;
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bool m_exec;
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2010-10-22 16:23:52 +00:00
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public:
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2021-09-06 18:28:26 +00:00
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PageProtectionMode()
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{
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All(false);
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}
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PageProtectionMode& Read(bool allow = true)
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{
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m_read = allow;
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return *this;
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}
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PageProtectionMode& Write(bool allow = true)
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{
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m_write = allow;
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return *this;
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}
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PageProtectionMode& Execute(bool allow = true)
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{
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m_exec = allow;
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return *this;
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}
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PageProtectionMode& All(bool allow = true)
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{
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m_read = m_write = m_exec = allow;
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return *this;
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}
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bool CanRead() const { return m_read; }
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bool CanWrite() const { return m_write; }
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bool CanExecute() const { return m_exec && m_read; }
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bool IsNone() const { return !m_read && !m_write; }
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2022-05-18 13:27:23 +00:00
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std::string ToString() const;
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2009-07-03 00:49:40 +00:00
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};
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2010-10-22 16:23:52 +00:00
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static __fi PageProtectionMode PageAccess_None()
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{
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2021-09-06 18:28:26 +00:00
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return PageProtectionMode();
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2010-10-22 16:23:52 +00:00
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}
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static __fi PageProtectionMode PageAccess_ReadOnly()
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{
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2021-09-06 18:28:26 +00:00
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return PageProtectionMode().Read();
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2010-10-22 16:23:52 +00:00
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}
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static __fi PageProtectionMode PageAccess_WriteOnly()
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{
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2021-09-06 18:28:26 +00:00
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return PageProtectionMode().Write();
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2010-10-22 16:23:52 +00:00
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}
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static __fi PageProtectionMode PageAccess_ReadWrite()
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{
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2021-09-06 18:28:26 +00:00
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return PageAccess_ReadOnly().Write();
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2010-10-22 16:23:52 +00:00
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}
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static __fi PageProtectionMode PageAccess_ExecOnly()
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{
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2021-09-06 18:28:26 +00:00
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return PageAccess_ReadOnly().Execute();
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2010-10-22 16:23:52 +00:00
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}
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static __fi PageProtectionMode PageAccess_Any()
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{
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2021-09-06 18:28:26 +00:00
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return PageProtectionMode().All();
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2010-10-22 16:23:52 +00:00
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}
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2010-01-22 15:22:01 +00:00
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// --------------------------------------------------------------------------------------
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// HostSys
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// --------------------------------------------------------------------------------------
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// (this namespace name sucks, and is a throw-back to an older attempt to make things cross
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// platform prior to wxWidgets .. it should prolly be removed -- air)
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2009-07-03 00:49:40 +00:00
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namespace HostSys
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{
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2021-09-06 18:28:26 +00:00
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void* MmapReserve(uptr base, size_t size);
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bool MmapCommit(uptr base, size_t size, const PageProtectionMode& mode);
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void MmapReset(uptr base, size_t size);
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2010-11-03 14:18:30 +00:00
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2021-09-06 18:28:26 +00:00
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void* MmapReservePtr(void* base, size_t size);
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bool MmapCommitPtr(void* base, size_t size, const PageProtectionMode& mode);
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void MmapResetPtr(void* base, size_t size);
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2010-10-22 16:23:52 +00:00
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2021-09-06 18:28:26 +00:00
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// Maps a block of memory for use as a recompiled code buffer.
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// Returns NULL on allocation failure.
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extern void* Mmap(uptr base, size_t size);
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2009-07-03 00:49:40 +00:00
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2021-09-06 18:28:26 +00:00
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// Unmaps a block allocated by SysMmap
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extern void Munmap(uptr base, size_t size);
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2009-07-03 00:49:40 +00:00
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2021-09-06 18:28:26 +00:00
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extern void MemProtect(void* baseaddr, size_t size, const PageProtectionMode& mode);
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2009-07-03 00:49:40 +00:00
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2021-09-06 18:28:26 +00:00
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extern void Munmap(void* base, size_t size);
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2010-04-25 00:31:27 +00:00
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2021-09-06 18:28:26 +00:00
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template <uint size>
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void MemProtectStatic(u8 (&arr)[size], const PageProtectionMode& mode)
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{
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MemProtect(arr, size, mode);
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}
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} // namespace HostSys
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2009-07-03 00:49:40 +00:00
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2010-10-18 01:40:49 +00:00
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// Safe version of Munmap -- NULLs the pointer variable immediately after free'ing it.
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2016-11-12 15:28:37 +00:00
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#define SafeSysMunmap(ptr, size) \
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2021-10-03 20:17:42 +00:00
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((void)(HostSys::Munmap((uptr)(ptr), size), (ptr) = 0))
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2009-07-03 00:49:40 +00:00
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extern void InitCPUTicks();
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2016-11-12 15:28:37 +00:00
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extern u64 GetTickFrequency();
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extern u64 GetCPUTicks();
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2010-11-23 21:32:52 +00:00
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extern u64 GetPhysicalMemory();
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2021-03-28 07:50:18 +00:00
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/// Spin for a short period of time (call while spinning waiting for a lock)
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/// Returns the approximate number of ns that passed
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extern u32 ShortSpin();
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/// Number of ns to spin for before sleeping a thread
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extern const u32 SPIN_TIME_NS;
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2009-11-26 03:37:10 +00:00
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2022-05-18 13:27:23 +00:00
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extern std::string GetOSVersionString();
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2015-02-26 02:08:58 +00:00
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void ScreensaverAllow(bool allow);
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