[GPU] DMA

This commit is contained in:
wheremyfoodat 2022-12-11 21:32:36 +02:00
parent 8f796352a6
commit e1ac986009
4 changed files with 32 additions and 4 deletions

View file

@ -47,9 +47,11 @@ class GPU {
u32 index = paddr - PhysicalAddrs::FCRAM;
return (T*)&fcram[index];
}
else {
Helpers::panic("[PICA] Pointer to unimplemented paddr %08X", paddr);
} else if (paddr >= PhysicalAddrs::VRAM && paddr <= PhysicalAddrs::VRAMEnd) {
u32 index = paddr - PhysicalAddrs::VRAM;
return (T*)&vram[index];
} else [[unlikely]] {
Helpers::panic("[GPU] Tried to access unknown physical address: %08X", paddr);
}
}
@ -102,6 +104,7 @@ public:
void getGraphicsContext(); // Set up the graphics context for rendering
void display(); // Display the screen contents onto our window
void fireDMA(u32 dest, u32 source, u32 size);
void clearBuffer(u32 startAddress, u32 endAddress, u32 value, u32 control);
void reset();

View file

@ -11,6 +11,8 @@
namespace PhysicalAddrs {
enum : u32 {
VRAM = 0x18000000,
VRAMEnd = VRAM + 0x005FFFFF,
FCRAM = 0x20000000,
FCRAMEnd = FCRAM + 0x07FFFFFF
};
@ -38,6 +40,7 @@ namespace VirtualAddrs {
VramStart = 0x1F000000,
VramSize = 0x00600000,
FcramTotalSize = 128_MB,
DSPMemStart = 0x1FF00000
};
}