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Pica/GPU: Change hardware registers to use physical addresses rather than virtual ones.

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This cleans up the mess that address reading/writing had become and makes the code a *lot* more sensible.
This adds a physical<->virtual address converter to mem_map.h. For further accuracy, we will want to properly extend this to support a wider range of address regions. For now, this makes simply homebrew applications work in a good manner though.
This commit is contained in:
Tony Wasserka 2014-08-03 01:46:47 +02:00
parent bd798390d5
commit 7b6a7d7dfb
8 changed files with 81 additions and 217 deletions
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22
src/core/mem_map.h
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@ -14,7 +14,6 @@ namespace Memory {
enum {
BOOTROM_SIZE = 0x00010000, ///< Bootrom (super secret code/data @ 0x8000) size
MPCORE_PRIV_SIZE = 0x00002000, ///< MPCore private memory region size
VRAM_SIZE = 0x00600000, ///< VRAM size
DSP_SIZE = 0x00080000, ///< DSP memory size
AXI_WRAM_SIZE = 0x00080000, ///< AXI WRAM size
@ -23,8 +22,6 @@ enum {
FCRAM_PADDR_END = (FCRAM_PADDR + FCRAM_SIZE), ///< FCRAM end of physical space
FCRAM_VADDR = 0x08000000, ///< FCRAM virtual address
FCRAM_VADDR_END = (FCRAM_VADDR + FCRAM_SIZE), ///< FCRAM end of virtual space
FCRAM_VADDR_FW0B = 0xF0000000, ///< FCRAM adress for firmare FW0B
FCRAM_VADDR_FW0B_END = (FCRAM_VADDR_FW0B + FCRAM_SIZE), ///< FCRAM adress end for FW0B
FCRAM_MASK = (FCRAM_SIZE - 1), ///< FCRAM mask
SHARED_MEMORY_SIZE = 0x04000000, ///< Shared memory size
@ -73,6 +70,7 @@ enum {
HARDWARE_IO_PADDR_END = (HARDWARE_IO_PADDR + HARDWARE_IO_SIZE),
HARDWARE_IO_VADDR_END = (HARDWARE_IO_VADDR + HARDWARE_IO_SIZE),
VRAM_SIZE = 0x00600000,
VRAM_PADDR = 0x18000000,
VRAM_VADDR = 0x1F000000,
VRAM_PADDR_END = (VRAM_PADDR + VRAM_SIZE),
@ -112,7 +110,7 @@ struct MemoryBlock {
// 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;
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
@ -147,7 +145,7 @@ void Write32(const u32 addr, const u32 data);
void WriteBlock(const u32 addr, const u8* data, const int size);
u8* GetPointer(const u32 Address);
u8* GetPointer(const u32 virtual_address);
/**
* Maps a block of memory on the heap
@ -169,16 +167,10 @@ inline const char* GetCharPointer(const u32 address) {
return (const char *)GetPointer(address);
}
inline const u32 VirtualAddressFromPhysical_FCRAM(const u32 address) {
return ((address & FCRAM_MASK) | FCRAM_VADDR);
}
/// Converts a physical address to virtual address
u32 PhysicalToVirtualAddress(const u32 addr);
inline const u32 VirtualAddressFromPhysical_IO(const u32 address) {
return (address + 0x0EB00000);
}
inline const u32 VirtualAddressFromPhysical_VRAM(const u32 address) {
return (address + 0x07000000);
}
/// Converts a virtual address to physical address
u32 VirtualToPhysicalAddress(const u32 addr);
} // namespace