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-rw-r--r--src/core/mem_map.cpp113
-rw-r--r--src/core/mem_map.h12
2 files changed, 31 insertions, 94 deletions
diff --git a/src/core/mem_map.cpp b/src/core/mem_map.cpp
index ae88cfb11..46e271c80 100644
--- a/src/core/mem_map.cpp
+++ b/src/core/mem_map.cpp
@@ -2,10 +2,8 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
-#include "common/common_funcs.h"
#include "common/common_types.h"
#include "common/logging/log.h"
-#include "common/mem_arena.h"
#include "core/mem_map.h"
@@ -13,100 +11,51 @@
namespace Memory {
-u8* g_base; ///< The base pointer to the auto-mirrored arena.
+u8* g_exefs_code; ///< ExeFS:/.code is loaded here
+u8* g_system_mem; ///< System memory
+u8* g_heap; ///< Application heap (main memory)
+u8* g_heap_linear; ///< Linear heap
+u8* g_vram; ///< Video memory (VRAM) pointer
+u8* g_shared_mem; ///< Shared memory
+u8* g_dsp_mem; ///< DSP memory
+u8* g_kernel_mem; ///< Kernel memory
-static MemArena arena; ///< The MemArena class
+namespace {
-u8* g_exefs_code; ///< ExeFS:/.code is loaded here
-u8* g_system_mem; ///< System memory
-u8* g_heap; ///< Application heap (main memory)
-u8* g_heap_linear; ///< Linear heap
-u8* g_vram; ///< Video memory (VRAM) pointer
-u8* g_shared_mem; ///< Shared memory
-u8* g_dsp_mem; ///< DSP memory
-u8* g_kernel_mem; ///< Kernel memory
-
-static u8* physical_bootrom; ///< Bootrom physical memory
-static u8* uncached_bootrom;
-
-static u8* physical_exefs_code; ///< Phsical ExeFS:/.code is loaded here
-static u8* physical_system_mem; ///< System physical memory
-static u8* physical_fcram; ///< Main physical memory (FCRAM)
-static u8* physical_heap_gsp; ///< GSP heap physical memory
-static u8* physical_vram; ///< Video physical memory (VRAM)
-static u8* physical_shared_mem; ///< Physical shared memory
-static u8* physical_dsp_mem; ///< Physical DSP memory
-static u8* physical_kernel_mem; ///< Kernel memory
-
-// We don't declare the IO region in here since its handled by other means.
-static MemoryView g_views[] = {
- {&g_exefs_code, &physical_exefs_code, EXEFS_CODE_VADDR, EXEFS_CODE_SIZE, 0},
- {&g_vram, &physical_vram, VRAM_VADDR, VRAM_SIZE, 0},
- {&g_heap, &physical_fcram, HEAP_VADDR, HEAP_SIZE, MV_IS_PRIMARY_RAM},
- {&g_shared_mem, &physical_shared_mem, SHARED_MEMORY_VADDR, SHARED_MEMORY_SIZE, 0},
- {&g_system_mem, &physical_system_mem, SYSTEM_MEMORY_VADDR, SYSTEM_MEMORY_SIZE, 0},
- {&g_dsp_mem, &physical_dsp_mem, DSP_MEMORY_VADDR, DSP_MEMORY_SIZE, 0},
- {&g_kernel_mem, &physical_kernel_mem, KERNEL_MEMORY_VADDR, KERNEL_MEMORY_SIZE, 0},
- {&g_heap_linear, &physical_heap_gsp, HEAP_LINEAR_VADDR, HEAP_LINEAR_SIZE, 0},
+struct MemoryArea {
+ u8** ptr;
+ size_t size;
};
-/*static MemoryView views[] =
-{
- {&m_pScratchPad, &m_pPhysicalScratchPad, 0x00010000, SCRATCHPAD_SIZE, 0},
- {NULL, &m_pUncachedScratchPad, 0x40010000, SCRATCHPAD_SIZE, MV_MIRROR_PREVIOUS},
- {&m_pVRAM, &m_pPhysicalVRAM, 0x04000000, 0x00800000, 0},
- {NULL, &m_pUncachedVRAM, 0x44000000, 0x00800000, MV_MIRROR_PREVIOUS},
- {&m_pRAM, &m_pPhysicalRAM, 0x08000000, g_MemorySize, MV_IS_PRIMARY_RAM}, // only from 0x08800000 is it usable (last 24 megs)
- {NULL, &m_pUncachedRAM, 0x48000000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_PRIMARY_RAM},
- {NULL, &m_pKernelRAM, 0x88000000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_PRIMARY_RAM},
-
- // TODO: There are a few swizzled mirrors of VRAM, not sure about the best way to
- // implement those.
-};*/
+// We don't declare the IO regions in here since its handled by other means.
+static MemoryArea memory_areas[] = {
+ {&g_exefs_code, EXEFS_CODE_SIZE },
+ {&g_vram, VRAM_SIZE },
+ {&g_heap, HEAP_SIZE },
+ {&g_shared_mem, SHARED_MEMORY_SIZE},
+ {&g_system_mem, SYSTEM_MEMORY_SIZE},
+ {&g_dsp_mem, DSP_MEMORY_SIZE },
+ {&g_kernel_mem, KERNEL_MEMORY_SIZE},
+ {&g_heap_linear, HEAP_LINEAR_SIZE },
+};
-static const int kNumMemViews = sizeof(g_views) / sizeof(MemoryView); ///< Number of mem views
+}
void Init() {
- int flags = 0;
-
- for (size_t i = 0; i < ARRAY_SIZE(g_views); i++) {
- if (g_views[i].flags & MV_IS_PRIMARY_RAM)
- g_views[i].size = FCRAM_SIZE;
+ for (MemoryArea& area : memory_areas) {
+ *area.ptr = new u8[area.size];
}
-
- g_base = MemoryMap_Setup(g_views, kNumMemViews, flags, &arena);
MemBlock_Init();
- LOG_DEBUG(HW_Memory, "initialized OK, RAM at %p (mirror at 0 @ %p)", g_heap,
- physical_fcram);
+ LOG_DEBUG(HW_Memory, "initialized OK, RAM at %p", g_heap);
}
void Shutdown() {
- u32 flags = 0;
- MemoryMap_Shutdown(g_views, kNumMemViews, flags, &arena);
- arena.ReleaseSpace();
MemBlock_Shutdown();
-
- g_base = nullptr;
- g_exefs_code = nullptr;
- g_system_mem = nullptr;
- g_heap = nullptr;
- g_heap_linear = nullptr;
- g_vram = nullptr;
- g_shared_mem = nullptr;
- g_dsp_mem = nullptr;
- g_kernel_mem = nullptr;
-
- physical_bootrom = nullptr;
- uncached_bootrom = nullptr;
- physical_exefs_code = nullptr;
- physical_system_mem = nullptr;
- physical_fcram = nullptr;
- physical_heap_gsp = nullptr;
- physical_vram = nullptr;
- physical_shared_mem = nullptr;
- physical_dsp_mem = nullptr;
- physical_kernel_mem = nullptr;
+ for (MemoryArea& area : memory_areas) {
+ delete[] *area.ptr;
+ *area.ptr = nullptr;
+ }
LOG_DEBUG(HW_Memory, "shutdown OK");
}
diff --git a/src/core/mem_map.h b/src/core/mem_map.h
index b11f2ea68..1fb77c94a 100644
--- a/src/core/mem_map.h
+++ b/src/core/mem_map.h
@@ -105,18 +105,6 @@ struct MemoryBlock {
////////////////////////////////////////////////////////////////////////////////////////////////////
-// Base is a pointer to the base of the memory map. Yes, some MMU tricks
-// are used to set up a full GC or Wii memory map in process memory. on
-// 32-bit, you have to mask your offsets with 0x3FFFFFFF. This means that
-// some things are mirrored too many times, but eh... it works.
-
-// In 64-bit, this might point to "high memory" (above the 32-bit limit),
-// so be sure to load it into a 64-bit register.
-extern u8 *g_base;
-
-// These are guaranteed to point to "low memory" addresses (sub-32-bit).
-// 64-bit: Pointers to low-mem (sub-0x10000000) mirror
-// 32-bit: Same as the corresponding physical/virtual pointers.
extern u8* g_heap_linear; ///< Linear heap (main memory)
extern u8* g_heap; ///< Application heap (main memory)
extern u8* g_vram; ///< Video memory (VRAM)
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 13:00:27 +0100