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-rw-r--r--src/core/memory.cpp67
1 files changed, 45 insertions, 22 deletions
diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index 847e69710..7f58be6de 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -82,10 +82,10 @@ void UnmapRegion(PageTable& page_table, VAddr base, u32 size) {
* Gets a pointer to the exact memory at the virtual address (i.e. not page aligned)
* using a VMA from the current process
*/
-static u8* GetPointerFromVMA(VAddr vaddr) {
+static u8* GetPointerFromVMA(const Kernel::Process& process, VAddr vaddr) {
u8* direct_pointer = nullptr;
- auto& vm_manager = Kernel::g_current_process->vm_manager;
+ auto& vm_manager = process.vm_manager;
auto it = vm_manager.FindVMA(vaddr);
ASSERT(it != vm_manager.vma_map.end());
@@ -108,6 +108,14 @@ static u8* GetPointerFromVMA(VAddr vaddr) {
}
/**
+ * Gets a pointer to the exact memory at the virtual address (i.e. not page aligned)
+ * using a VMA from the current process.
+ */
+static u8* GetPointerFromVMA(VAddr vaddr) {
+ return GetPointerFromVMA(*Kernel::g_current_process, vaddr);
+}
+
+/**
* This function should only be called for virtual addreses with attribute `PageType::Special`.
*/
static MMIORegionPointer GetMMIOHandler(const PageTable& page_table, VAddr vaddr) {
@@ -470,7 +478,10 @@ u64 Read64(const VAddr addr) {
return Read<u64_le>(addr);
}
-void ReadBlock(const VAddr src_addr, void* dest_buffer, const size_t size) {
+void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_buffer,
+ const size_t size) {
+ auto& page_table = process.vm_manager.page_table;
+
size_t remaining_size = size;
size_t page_index = src_addr >> PAGE_BITS;
size_t page_offset = src_addr & PAGE_MASK;
@@ -479,7 +490,7 @@ void ReadBlock(const VAddr src_addr, void* dest_buffer, const size_t size) {
const size_t copy_amount = std::min(PAGE_SIZE - page_offset, remaining_size);
const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
- switch (current_page_table->attributes[page_index]) {
+ switch (page_table.attributes[page_index]) {
case PageType::Unmapped: {
LOG_ERROR(HW_Memory, "unmapped ReadBlock @ 0x%08X (start address = 0x%08X, size = %zu)",
current_vaddr, src_addr, size);
@@ -487,29 +498,30 @@ void ReadBlock(const VAddr src_addr, void* dest_buffer, const size_t size) {
break;
}
case PageType::Memory: {
- DEBUG_ASSERT(current_page_table->pointers[page_index]);
+ DEBUG_ASSERT(page_table.pointers[page_index]);
- const u8* src_ptr = current_page_table->pointers[page_index] + page_offset;
+ const u8* src_ptr = page_table.pointers[page_index] + page_offset;
std::memcpy(dest_buffer, src_ptr, copy_amount);
break;
}
case PageType::Special: {
- DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
-
- GetMMIOHandler(current_vaddr)->ReadBlock(current_vaddr, dest_buffer, copy_amount);
+ MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
+ DEBUG_ASSERT(handler);
+ handler->ReadBlock(current_vaddr, dest_buffer, copy_amount);
break;
}
case PageType::RasterizerCachedMemory: {
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
FlushMode::Flush);
- std::memcpy(dest_buffer, GetPointerFromVMA(current_vaddr), copy_amount);
+ std::memcpy(dest_buffer, GetPointerFromVMA(process, current_vaddr), copy_amount);
break;
}
case PageType::RasterizerCachedSpecial: {
- DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
+ MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
+ DEBUG_ASSERT(handler);
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
FlushMode::Flush);
- GetMMIOHandler(current_vaddr)->ReadBlock(current_vaddr, dest_buffer, copy_amount);
+ handler->ReadBlock(current_vaddr, dest_buffer, copy_amount);
break;
}
default:
@@ -523,6 +535,10 @@ void ReadBlock(const VAddr src_addr, void* dest_buffer, const size_t size) {
}
}
+void ReadBlock(const VAddr src_addr, void* dest_buffer, const size_t size) {
+ ReadBlock(*Kernel::g_current_process, src_addr, dest_buffer, size);
+}
+
void Write8(const VAddr addr, const u8 data) {
Write<u8>(addr, data);
}
@@ -539,7 +555,9 @@ void Write64(const VAddr addr, const u64 data) {
Write<u64_le>(addr, data);
}
-void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size) {
+void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const void* src_buffer,
+ const size_t size) {
+ auto& page_table = process.vm_manager.page_table;
size_t remaining_size = size;
size_t page_index = dest_addr >> PAGE_BITS;
size_t page_offset = dest_addr & PAGE_MASK;
@@ -548,7 +566,7 @@ void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size
const size_t copy_amount = std::min(PAGE_SIZE - page_offset, remaining_size);
const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
- switch (current_page_table->attributes[page_index]) {
+ switch (page_table.attributes[page_index]) {
case PageType::Unmapped: {
LOG_ERROR(HW_Memory,
"unmapped WriteBlock @ 0x%08X (start address = 0x%08X, size = %zu)",
@@ -556,29 +574,30 @@ void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size
break;
}
case PageType::Memory: {
- DEBUG_ASSERT(current_page_table->pointers[page_index]);
+ DEBUG_ASSERT(page_table.pointers[page_index]);
- u8* dest_ptr = current_page_table->pointers[page_index] + page_offset;
+ u8* dest_ptr = page_table.pointers[page_index] + page_offset;
std::memcpy(dest_ptr, src_buffer, copy_amount);
break;
}
case PageType::Special: {
- DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
-
- GetMMIOHandler(current_vaddr)->WriteBlock(current_vaddr, src_buffer, copy_amount);
+ MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
+ DEBUG_ASSERT(handler);
+ handler->WriteBlock(current_vaddr, src_buffer, copy_amount);
break;
}
case PageType::RasterizerCachedMemory: {
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
FlushMode::FlushAndInvalidate);
- std::memcpy(GetPointerFromVMA(current_vaddr), src_buffer, copy_amount);
+ std::memcpy(GetPointerFromVMA(process, current_vaddr), src_buffer, copy_amount);
break;
}
case PageType::RasterizerCachedSpecial: {
- DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
+ MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
+ DEBUG_ASSERT(handler);
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
FlushMode::FlushAndInvalidate);
- GetMMIOHandler(current_vaddr)->WriteBlock(current_vaddr, src_buffer, copy_amount);
+ handler->WriteBlock(current_vaddr, src_buffer, copy_amount);
break;
}
default:
@@ -592,6 +611,10 @@ void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size
}
}
+void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size) {
+ WriteBlock(*Kernel::g_current_process, dest_addr, src_buffer, size);
+}
+
void ZeroBlock(const VAddr dest_addr, const size_t size) {
size_t remaining_size = size;
size_t page_index = dest_addr >> PAGE_BITS;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 11:44:01 +0100