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authorYuri Kunde Schlesner <yuriks@yuriks.net>2015-05-12 22:38:29 -0300
committerYuri Kunde Schlesner <yuriks@yuriks.net>2015-05-15 00:04:38 -0300
commit7ada357b2d12cf616672425a8961804b865354d6 (patch)
tree983003c1efc0950605eca3aa7d135b7c8fe9edcf /src/core/memory.cpp
parenta251721bf3a053ea012ac0b891826f3246273c82 (diff)
Memmap: Re-organize memory function in two files
memory.cpp/h contains definitions related to acessing memory and configuring the address space mem_map.cpp/h contains higher-level definitions related to configuring the address space accoording to the kernel and allocating memory.
Diffstat (limited to 'src/core/memory.cpp')
-rw-r--r--src/core/memory.cpp197
1 files changed, 197 insertions, 0 deletions
diff --git a/src/core/memory.cpp b/src/core/memory.cpp
new file mode 100644
index 0000000000..517167b0ad
--- /dev/null
+++ b/src/core/memory.cpp
@@ -0,0 +1,197 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/common_types.h"
+#include "common/logging/log.h"
+#include "common/swap.h"
+
+#include "core/hle/config_mem.h"
+#include "core/hle/shared_page.h"
+#include "core/hw/hw.h"
+#include "core/mem_map.h"
+#include "core/memory.h"
+
+namespace Memory {
+
+template <typename T>
+inline void Read(T &var, const VAddr vaddr) {
+ // TODO: Figure out the fastest order of tests for both read and write (they are probably different).
+ // TODO: Make sure this represents the mirrors in a correct way.
+ // Could just do a base-relative read, too.... TODO
+
+ // Kernel memory command buffer
+ if (vaddr >= TLS_AREA_VADDR && vaddr < TLS_AREA_VADDR_END) {
+ var = *((const T*)&g_tls_mem[vaddr - TLS_AREA_VADDR]);
+
+ // ExeFS:/.code is loaded here
+ } else if ((vaddr >= PROCESS_IMAGE_VADDR) && (vaddr < PROCESS_IMAGE_VADDR_END)) {
+ var = *((const T*)&g_exefs_code[vaddr - PROCESS_IMAGE_VADDR]);
+
+ // FCRAM - linear heap
+ } else if ((vaddr >= LINEAR_HEAP_VADDR) && (vaddr < LINEAR_HEAP_VADDR_END)) {
+ var = *((const T*)&g_heap_linear[vaddr - LINEAR_HEAP_VADDR]);
+
+ // FCRAM - application heap
+ } else if ((vaddr >= HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
+ var = *((const T*)&g_heap[vaddr - HEAP_VADDR]);
+
+ // Shared memory
+ } else if ((vaddr >= SHARED_MEMORY_VADDR) && (vaddr < SHARED_MEMORY_VADDR_END)) {
+ var = *((const T*)&g_shared_mem[vaddr - SHARED_MEMORY_VADDR]);
+
+ // Config memory
+ } else if ((vaddr >= CONFIG_MEMORY_VADDR) && (vaddr < CONFIG_MEMORY_VADDR_END)) {
+ ConfigMem::Read<T>(var, vaddr);
+
+ // Shared page
+ } else if ((vaddr >= SHARED_PAGE_VADDR) && (vaddr < SHARED_PAGE_VADDR_END)) {
+ SharedPage::Read<T>(var, vaddr);
+
+ // DSP memory
+ } else if ((vaddr >= DSP_RAM_VADDR) && (vaddr < DSP_RAM_VADDR_END)) {
+ var = *((const T*)&g_dsp_mem[vaddr - DSP_RAM_VADDR]);
+
+ // VRAM
+ } else if ((vaddr >= VRAM_VADDR) && (vaddr < VRAM_VADDR_END)) {
+ var = *((const T*)&g_vram[vaddr - VRAM_VADDR]);
+
+ } else {
+ LOG_ERROR(HW_Memory, "unknown Read%lu @ 0x%08X", sizeof(var) * 8, vaddr);
+ }
+}
+
+template <typename T>
+inline void Write(const VAddr vaddr, const T data) {
+
+ // Kernel memory command buffer
+ if (vaddr >= TLS_AREA_VADDR && vaddr < TLS_AREA_VADDR_END) {
+ *(T*)&g_tls_mem[vaddr - TLS_AREA_VADDR] = data;
+
+ // ExeFS:/.code is loaded here
+ } else if ((vaddr >= PROCESS_IMAGE_VADDR) && (vaddr < PROCESS_IMAGE_VADDR_END)) {
+ *(T*)&g_exefs_code[vaddr - PROCESS_IMAGE_VADDR] = data;
+
+ // FCRAM - linear heap
+ } else if ((vaddr >= LINEAR_HEAP_VADDR) && (vaddr < LINEAR_HEAP_VADDR_END)) {
+ *(T*)&g_heap_linear[vaddr - LINEAR_HEAP_VADDR] = data;
+
+ // FCRAM - application heap
+ } else if ((vaddr >= HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
+ *(T*)&g_heap[vaddr - HEAP_VADDR] = data;
+
+ // Shared memory
+ } else if ((vaddr >= SHARED_MEMORY_VADDR) && (vaddr < SHARED_MEMORY_VADDR_END)) {
+ *(T*)&g_shared_mem[vaddr - SHARED_MEMORY_VADDR] = data;
+
+ // VRAM
+ } else if ((vaddr >= VRAM_VADDR) && (vaddr < VRAM_VADDR_END)) {
+ *(T*)&g_vram[vaddr - VRAM_VADDR] = data;
+
+ // DSP memory
+ } else if ((vaddr >= DSP_RAM_VADDR) && (vaddr < DSP_RAM_VADDR_END)) {
+ *(T*)&g_dsp_mem[vaddr - DSP_RAM_VADDR] = data;
+
+ //} else if ((vaddr & 0xFFFF0000) == 0x1FF80000) {
+ // ASSERT_MSG(MEMMAP, false, "umimplemented write to Configuration Memory");
+ //} else if ((vaddr & 0xFFFFF000) == 0x1FF81000) {
+ // ASSERT_MSG(MEMMAP, false, "umimplemented write to shared page");
+
+ // Error out...
+ } else {
+ LOG_ERROR(HW_Memory, "unknown Write%lu 0x%08X @ 0x%08X", sizeof(data) * 8, (u32)data, vaddr);
+ }
+}
+
+u8 *GetPointer(const VAddr vaddr) {
+ // Kernel memory command buffer
+ if (vaddr >= TLS_AREA_VADDR && vaddr < TLS_AREA_VADDR_END) {
+ return g_tls_mem + (vaddr - TLS_AREA_VADDR);
+
+ // ExeFS:/.code is loaded here
+ } else if ((vaddr >= PROCESS_IMAGE_VADDR) && (vaddr < PROCESS_IMAGE_VADDR_END)) {
+ return g_exefs_code + (vaddr - PROCESS_IMAGE_VADDR);
+
+ // FCRAM - linear heap
+ } else if ((vaddr >= LINEAR_HEAP_VADDR) && (vaddr < LINEAR_HEAP_VADDR_END)) {
+ return g_heap_linear + (vaddr - LINEAR_HEAP_VADDR);
+
+ // FCRAM - application heap
+ } else if ((vaddr >= HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
+ return g_heap + (vaddr - HEAP_VADDR);
+
+ // Shared memory
+ } else if ((vaddr >= SHARED_MEMORY_VADDR) && (vaddr < SHARED_MEMORY_VADDR_END)) {
+ return g_shared_mem + (vaddr - SHARED_MEMORY_VADDR);
+
+ // VRAM
+ } else if ((vaddr >= VRAM_VADDR) && (vaddr < VRAM_VADDR_END)) {
+ return g_vram + (vaddr - VRAM_VADDR);
+
+ } else {
+ LOG_ERROR(HW_Memory, "unknown GetPointer @ 0x%08x", vaddr);
+ return 0;
+ }
+}
+
+u8* GetPhysicalPointer(PAddr address) {
+ return GetPointer(PhysicalToVirtualAddress(address));
+}
+
+u8 Read8(const VAddr addr) {
+ u8 data = 0;
+ Read<u8>(data, addr);
+ return data;
+}
+
+u16 Read16(const VAddr addr) {
+ u16_le data = 0;
+ Read<u16_le>(data, addr);
+ return data;
+}
+
+u32 Read32(const VAddr addr) {
+ u32_le data = 0;
+ Read<u32_le>(data, addr);
+ return data;
+}
+
+u64 Read64(const VAddr addr) {
+ u64_le data = 0;
+ Read<u64_le>(data, addr);
+ return data;
+}
+
+void Write8(const VAddr addr, const u8 data) {
+ Write<u8>(addr, data);
+}
+
+void Write16(const VAddr addr, const u16 data) {
+ Write<u16_le>(addr, data);
+}
+
+void Write32(const VAddr addr, const u32 data) {
+ Write<u32_le>(addr, data);
+}
+
+void Write64(const VAddr addr, const u64 data) {
+ Write<u64_le>(addr, data);
+}
+
+void WriteBlock(const VAddr addr, const u8* data, const size_t size) {
+ u32 offset = 0;
+ while (offset < (size & ~3)) {
+ Write32(addr + offset, *(u32*)&data[offset]);
+ offset += 4;
+ }
+
+ if (size & 2) {
+ Write16(addr + offset, *(u16*)&data[offset]);
+ offset += 2;
+ }
+
+ if (size & 1)
+ Write8(addr + offset, data[offset]);
+}
+
+} // namespace
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