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author | Yuri Kunde Schlesner <yuriks@yuriks.net> | 2015-05-13 03:38:29 +0200 |
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committer | Yuri Kunde Schlesner <yuriks@yuriks.net> | 2015-05-15 05:04:38 +0200 |
commit | 7ada357b2d12cf616672425a8961804b865354d6 (patch) | |
tree | 983003c1efc0950605eca3aa7d135b7c8fe9edcf /src/core/mem_map.cpp | |
parent | Memmap: Remove unused declarations (diff) | |
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Diffstat (limited to 'src/core/mem_map.cpp')
-rw-r--r-- | src/core/mem_map.cpp | 97 |
1 files changed, 95 insertions, 2 deletions
diff --git a/src/core/mem_map.cpp b/src/core/mem_map.cpp index f99520464..66c2f77c0 100644 --- a/src/core/mem_map.cpp +++ b/src/core/mem_map.cpp @@ -2,10 +2,13 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. +#include <map> + #include "common/common_types.h" #include "common/logging/log.h" #include "core/mem_map.h" +#include "core/memory.h" //////////////////////////////////////////////////////////////////////////////////////////////////// @@ -37,19 +40,109 @@ static MemoryArea memory_areas[] = { {&g_tls_mem, TLS_AREA_SIZE }, }; +/// Represents a block of memory mapped by ControlMemory/MapMemoryBlock +struct MemoryBlock { + MemoryBlock() : handle(0), base_address(0), address(0), size(0), operation(0), permissions(0) { + } + u32 handle; + u32 base_address; + u32 address; + u32 size; + u32 operation; + u32 permissions; + + const u32 GetVirtualAddress() const{ + return base_address + address; + } +}; + +static std::map<u32, MemoryBlock> heap_map; +static std::map<u32, MemoryBlock> heap_linear_map; + +} + +u32 MapBlock_Heap(u32 size, u32 operation, u32 permissions) { + MemoryBlock block; + + block.base_address = HEAP_VADDR; + block.size = size; + block.operation = operation; + block.permissions = permissions; + + if (heap_map.size() > 0) { + const MemoryBlock last_block = heap_map.rbegin()->second; + block.address = last_block.address + last_block.size; + } + heap_map[block.GetVirtualAddress()] = block; + + return block.GetVirtualAddress(); +} + +u32 MapBlock_HeapLinear(u32 size, u32 operation, u32 permissions) { + MemoryBlock block; + + block.base_address = LINEAR_HEAP_VADDR; + block.size = size; + block.operation = operation; + block.permissions = permissions; + + if (heap_linear_map.size() > 0) { + const MemoryBlock last_block = heap_linear_map.rbegin()->second; + block.address = last_block.address + last_block.size; + } + heap_linear_map[block.GetVirtualAddress()] = block; + + return block.GetVirtualAddress(); +} + +PAddr VirtualToPhysicalAddress(const VAddr addr) { + if (addr == 0) { + return 0; + } else if (addr >= VRAM_VADDR && addr < VRAM_VADDR_END) { + return addr - VRAM_VADDR + VRAM_PADDR; + } else if (addr >= LINEAR_HEAP_VADDR && addr < LINEAR_HEAP_VADDR_END) { + return addr - LINEAR_HEAP_VADDR + FCRAM_PADDR; + } else if (addr >= DSP_RAM_VADDR && addr < DSP_RAM_VADDR_END) { + return addr - DSP_RAM_VADDR + DSP_RAM_PADDR; + } else if (addr >= IO_AREA_VADDR && addr < IO_AREA_VADDR_END) { + return addr - IO_AREA_VADDR + IO_AREA_PADDR; + } + + LOG_ERROR(HW_Memory, "Unknown virtual address @ 0x%08x", addr); + // To help with debugging, set bit on address so that it's obviously invalid. + return addr | 0x80000000; +} + +VAddr PhysicalToVirtualAddress(const PAddr addr) { + if (addr == 0) { + return 0; + } else if (addr >= VRAM_PADDR && addr < VRAM_PADDR_END) { + return addr - VRAM_PADDR + VRAM_VADDR; + } else if (addr >= FCRAM_PADDR && addr < FCRAM_PADDR_END) { + return addr - FCRAM_PADDR + LINEAR_HEAP_VADDR; + } else if (addr >= DSP_RAM_PADDR && addr < DSP_RAM_PADDR_END) { + return addr - DSP_RAM_PADDR + DSP_RAM_VADDR; + } else if (addr >= IO_AREA_PADDR && addr < IO_AREA_PADDR_END) { + return addr - IO_AREA_PADDR + IO_AREA_VADDR; + } + + LOG_ERROR(HW_Memory, "Unknown physical address @ 0x%08x", addr); + // To help with debugging, set bit on address so that it's obviously invalid. + return addr | 0x80000000; } void Init() { for (MemoryArea& area : memory_areas) { *area.ptr = new u8[area.size]; } - MemBlock_Init(); LOG_DEBUG(HW_Memory, "initialized OK, RAM at %p", g_heap); } void Shutdown() { - MemBlock_Shutdown(); + heap_map.clear(); + heap_linear_map.clear(); + for (MemoryArea& area : memory_areas) { delete[] *area.ptr; *area.ptr = nullptr; |