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added GSP heap memory allocation

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bunnei
2014-04-17 23:05:31 -04:00
parent 33e7d97d46
commit b2baafaf8b
3 changed files with 76 additions and 1 deletions
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26
src/core/mem_map_funcs.cpp
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@ -2,6 +2,8 @@
// Licensed under GPLv2
// Refer to the license.txt file included.
#include <map>
#include "common/common.h"
#include "core/mem_map.h"
@ -10,6 +12,8 @@
namespace Memory {
std::map<u32, HeapBlock> g_heap_gsp_map;
/// Convert a physical address to virtual address
u32 _AddressPhysicalToVirtual(const u32 addr) {
// Our memory interface read/write functions assume virtual addresses. Put any physical address
@ -116,6 +120,28 @@ u8 *GetPointer(const u32 addr) {
}
}
/**
* Maps a block of memory on the GSP heap
* @param size Size of block in bytes
* @param flags Memory allocation flags
*/
u32 MapBlock_HeapGSP(u32 size, u32 operation, u32 permissions) {
HeapBlock block;
block.base_address = HEAP_GSP_VADDR;
block.size = size;
block.operation = operation;
block.permissions = permissions;
if (g_heap_gsp_map.size() > 0) {
const HeapBlock last_block = g_heap_gsp_map.rbegin()->second;
block.address = last_block.address + last_block.size;
}
g_heap_gsp_map[block.GetVirtualAddress()] = block;
return block.GetVirtualAddress();
}
u8 Read8(const u32 addr) {
u8 _var = 0;
_Read<u8>(_var, addr);