summaryrefslogtreecommitdiffstats
path: root/src/core/hle/kernel/shared_memory.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/core/hle/kernel/shared_memory.cpp')
-rw-r--r--src/core/hle/kernel/shared_memory.cpp37
1 files changed, 8 insertions, 29 deletions
diff --git a/src/core/hle/kernel/shared_memory.cpp b/src/core/hle/kernel/shared_memory.cpp
index 4bf11c7e2..21ddc2f7d 100644
--- a/src/core/hle/kernel/shared_memory.cpp
+++ b/src/core/hle/kernel/shared_memory.cpp
@@ -3,10 +3,11 @@
// Refer to the license.txt file included.
#include <utility>
+
+#include "common/assert.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/hle/kernel/errors.h"
-#include "core/hle/kernel/memory.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/memory.h"
@@ -28,35 +29,17 @@ SharedPtr<SharedMemory> SharedMemory::Create(SharedPtr<Process> owner_process, u
shared_memory->other_permissions = other_permissions;
if (address == 0) {
- // We need to allocate a block from the Linear Heap ourselves.
- // We'll manually allocate some memory from the linear heap in the specified region.
- MemoryRegionInfo* memory_region = GetMemoryRegion(region);
- auto& linheap_memory = memory_region->linear_heap_memory;
-
- ASSERT_MSG(linheap_memory->size() + size <= memory_region->size,
- "Not enough space in region to allocate shared memory!");
-
- shared_memory->backing_block = linheap_memory;
- shared_memory->backing_block_offset = linheap_memory->size();
- // Allocate some memory from the end of the linear heap for this region.
- linheap_memory->insert(linheap_memory->end(), size, 0);
- memory_region->used += size;
-
- shared_memory->linear_heap_phys_address =
- Memory::FCRAM_PADDR + memory_region->base +
- static_cast<PAddr>(shared_memory->backing_block_offset);
-
- // Increase the amount of used linear heap memory for the owner process.
- if (shared_memory->owner_process != nullptr) {
- shared_memory->owner_process->linear_heap_used += size;
- }
+ shared_memory->backing_block = std::make_shared<std::vector<u8>>(size);
+ shared_memory->backing_block_offset = 0;
// Refresh the address mappings for the current process.
if (Core::CurrentProcess() != nullptr) {
- Core::CurrentProcess()->vm_manager.RefreshMemoryBlockMappings(linheap_memory.get());
+ Core::CurrentProcess()->vm_manager.RefreshMemoryBlockMappings(
+ shared_memory->backing_block.get());
}
} else {
auto& vm_manager = shared_memory->owner_process->vm_manager;
+
// The memory is already available and mapped in the owner process.
auto vma = vm_manager.FindVMA(address);
ASSERT_MSG(vma != vm_manager.vma_map.end(), "Invalid memory address");
@@ -72,6 +55,7 @@ SharedPtr<SharedMemory> SharedMemory::Create(SharedPtr<Process> owner_process, u
}
shared_memory->base_address = address;
+
return shared_memory;
}
@@ -122,11 +106,6 @@ ResultCode SharedMemory::Map(Process* target_process, VAddr address, MemoryPermi
VAddr target_address = address;
- if (base_address == 0 && target_address == 0) {
- // Calculate the address at which to map the memory block.
- target_address = Memory::PhysicalToVirtualAddress(linear_heap_phys_address).value();
- }
-
// Map the memory block into the target process
auto result = target_process->vm_manager.MapMemoryBlock(
target_address, backing_block, backing_block_offset, size, MemoryState::Shared);