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-rw-r--r--src/core/memory.h104
1 files changed, 7 insertions, 97 deletions
diff --git a/src/core/memory.h b/src/core/memory.h
index 1acf5ce8c..04e2c5f1d 100644
--- a/src/core/memory.h
+++ b/src/core/memory.h
@@ -6,11 +6,11 @@
#include <cstddef>
#include <string>
-#include <tuple>
-#include <vector>
-#include <boost/icl/interval_map.hpp>
#include "common/common_types.h"
-#include "core/memory_hook.h"
+
+namespace Common {
+struct PageTable;
+}
namespace Kernel {
class Process;
@@ -26,83 +26,8 @@ constexpr std::size_t PAGE_BITS = 12;
constexpr u64 PAGE_SIZE = 1ULL << PAGE_BITS;
constexpr u64 PAGE_MASK = PAGE_SIZE - 1;
-enum class PageType : u8 {
- /// Page is unmapped and should cause an access error.
- Unmapped,
- /// Page is mapped to regular memory. This is the only type you can get pointers to.
- Memory,
- /// Page is mapped to regular memory, but also needs to check for rasterizer cache flushing and
- /// invalidation
- RasterizerCachedMemory,
- /// Page is mapped to a I/O region. Writing and reading to this page is handled by functions.
- Special,
-};
-
-struct SpecialRegion {
- enum class Type {
- DebugHook,
- IODevice,
- } type;
-
- MemoryHookPointer handler;
-
- bool operator<(const SpecialRegion& other) const {
- return std::tie(type, handler) < std::tie(other.type, other.handler);
- }
-
- bool operator==(const SpecialRegion& other) const {
- return std::tie(type, handler) == std::tie(other.type, other.handler);
- }
-};
-
-/**
- * A (reasonably) fast way of allowing switchable and remappable process address spaces. It loosely
- * mimics the way a real CPU page table works.
- */
-struct PageTable {
- explicit PageTable();
- explicit PageTable(std::size_t address_space_width_in_bits);
- ~PageTable();
-
- /**
- * Resizes the page table to be able to accomodate enough pages within
- * a given address space.
- *
- * @param address_space_width_in_bits The address size width in bits.
- */
- void Resize(std::size_t address_space_width_in_bits);
-
- /**
- * Vector of memory pointers backing each page. An entry can only be non-null if the
- * corresponding entry in the `attributes` vector is of type `Memory`.
- */
- std::vector<u8*> pointers;
-
- /**
- * Contains MMIO handlers that back memory regions whose entries in the `attribute` vector is
- * of type `Special`.
- */
- boost::icl::interval_map<VAddr, std::set<SpecialRegion>> special_regions;
-
- /**
- * Vector of fine grained page attributes. If it is set to any value other than `Memory`, then
- * the corresponding entry in `pointers` MUST be set to null.
- */
- std::vector<PageType> attributes;
-};
-
/// Virtual user-space memory regions
enum : VAddr {
- /// Read-only page containing kernel and system configuration values.
- CONFIG_MEMORY_VADDR = 0x1FF80000,
- CONFIG_MEMORY_SIZE = 0x00001000,
- CONFIG_MEMORY_VADDR_END = CONFIG_MEMORY_VADDR + CONFIG_MEMORY_SIZE,
-
- /// Usually read-only page containing mostly values read from hardware.
- SHARED_PAGE_VADDR = 0x1FF81000,
- SHARED_PAGE_SIZE = 0x00001000,
- SHARED_PAGE_VADDR_END = SHARED_PAGE_VADDR + SHARED_PAGE_SIZE,
-
/// TLS (Thread-Local Storage) related.
TLS_ENTRY_SIZE = 0x200,
@@ -115,9 +40,9 @@ enum : VAddr {
KERNEL_REGION_END = KERNEL_REGION_VADDR + KERNEL_REGION_SIZE,
};
-/// Currently active page table
-void SetCurrentPageTable(PageTable* page_table);
-PageTable* GetCurrentPageTable();
+/// Changes the currently active page table to that of
+/// the given process instance.
+void SetCurrentPageTable(Kernel::Process& process);
/// Determines if the given VAddr is valid for the specified process.
bool IsValidVirtualAddress(const Kernel::Process& process, VAddr vaddr);
@@ -147,24 +72,9 @@ u8* GetPointer(VAddr vaddr);
std::string ReadCString(VAddr vaddr, std::size_t max_length);
-enum class FlushMode {
- /// Write back modified surfaces to RAM
- Flush,
- /// Remove region from the cache
- Invalidate,
- /// Write back modified surfaces to RAM, and also remove them from the cache
- FlushAndInvalidate,
-};
-
/**
* Mark each page touching the region as cached.
*/
void RasterizerMarkRegionCached(VAddr vaddr, u64 size, bool cached);
-/**
- * Flushes and invalidates any externally cached rasterizer resources touching the given virtual
- * address region.
- */
-void RasterizerFlushVirtualRegion(VAddr start, u64 size, FlushMode mode);
-
} // namespace Memory