mirror of https://github.com/PCSX2/pcsx2.git
ReorderingMTGS:
* Added a few assertions to detect when PATH transfers are started that violate other pending PATH transfers. * Removed a lot of obsolete code from vif1's DIRECT handler (Vif_Codes.cpp) * Add alignment to Path1buffer to avoid SSE alignment faults. git-svn-id: http://pcsx2.googlecode.com/svn/branches/ReorderingMTGS@3503 96395faa-99c1-11dd-bbfe-3dabce05a288
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@ -36,7 +36,7 @@ static u32 gifqwc = 0;
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static bool gifmfifoirq = false;
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//Just some temporary bits to store Path1 transfers if another is in progress.
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u8 Path1Buffer[0x1000000];
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__aligned16 u8 Path1Buffer[0x1000000];
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u32 Path1WritePos = 0;
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u32 Path1ReadPos = 0;
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@ -65,7 +65,6 @@ void gsPath1Interrupt()
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uint count = GIFPath_CopyTag(GIF_PATH_1, ((u128*)Path1Buffer) + Path1ReadPos, size);
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GetMTGS().SendDataPacket();
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pxAssume( count == size );
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Path1ReadPos += count;
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if(GSTransferStatus.PTH1 == STOPPED_MODE)
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@ -290,7 +290,7 @@ extern void gifMFIFOInterrupt();
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//Just some temporary bits to store Path1 transfers if another is in progress.
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extern void gsPath1Interrupt();
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extern u8 Path1Buffer[0x1000000];
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extern __aligned16 u8 Path1Buffer[0x1000000];
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extern u32 Path1WritePos;
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extern u32 Path1ReadPos;
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#endif
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@ -134,6 +134,7 @@ template<int idx> _f int _vifCode_Direct(int pass, u8* data, bool isDirectHL) {
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}
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pass2 {
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vif1Only();
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nVifStruct& v = nVif[1];
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if (GSTransferStatus.PTH3 < IDLE_MODE || gifRegs->stat.P1Q == true)
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{
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@ -167,79 +168,34 @@ template<int idx> _f int _vifCode_Direct(int pass, u8* data, bool isDirectHL) {
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return 0;
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}
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// HACK ATTACK!
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// we shouldn't be clearing the queue flag here at all. Ideally, the queue statuses
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// should be checked, handled, and cleared from the EOP check in GIFPath only. --air
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gifRegs->stat.clear_flags(GIF_STAT_P2Q);
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nVifStruct& v = nVif[1];
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const int ret = aMin(vif1.vifpacketsize, vif1.tag.size);
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u32 size = ret << 2;
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// the tag size should ALWAYS be 128 bits (qwc). If it isn't, it means there's a serious bug
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// somewhere in the VIF (likely relating to +/-'ing the tag.size during processing).
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pxAssumeMsg( (vif1.tag.size & 1) == 0, "Invalid Vif1 DIRECT packet size detected!" );
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//gifRegs->stat.APATH = GIF_APATH2; //Flag is cleared in vif1interrupt to simulate it being in progress.
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const int minSize = aMin(vif1.vifpacketsize, vif1.tag.size)/4;
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uint ret;
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//In the original code we were saving this data, it seems if it does happen, its just blank, so we ignore it.
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if (!minSize)
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DevCon.Warning("VIF DIRECT (PATH2): No Data Transfer?");
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if (!size) { DevCon.WriteLn("Path2: No Data Transfer?"); }
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GetMTGS().PrepDataPacket(GIF_PATH_2, minSize);
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ret = GIFPath_CopyTag(GIF_PATH_2, (u128*)data, minSize)*4;
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GetMTGS().SendDataPacket();
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vif1.tag.size -= ret;
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if(vif1.vifpacketsize < 4 && v.bSize < 16)
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{
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nVifStruct& v = nVif[idx];
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memcpy(&v.buffer[v.bPtr], data, vif1.vifpacketsize << 2);
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v.bSize += vif1.vifpacketsize << 2;
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v.bPtr += vif1.vifpacketsize << 2;
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vif1.tag.size -= vif1.vifpacketsize;
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if(vif1.tag.size == 0)
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{
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DevCon.Warning("Missaligned packet on DIRECT end!");
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vif1.cmd = 0;
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}
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return vif1.vifpacketsize;
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}
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else
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{
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nVifStruct& v = nVif[idx];
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if(v.bSize)
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{
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int ret = 0;
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if(v.bSize < 16)
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{
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if(((16 - v.bSize) >> 2) > vif1.vifpacketsize) DevCon.Warning("Not Enough Data!");
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ret = (16 - v.bSize) >> 2;
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memcpy(&v.buffer[v.bPtr], data, ret << 2);
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vif1.tag.size -= ret;
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v.bSize = 0;
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v.bPtr = 0;
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}
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GetMTGS().PrepDataPacket(GIF_PATH_2, 1);
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GIFPath_CopyTag(GIF_PATH_2, (u128*)v.buffer, 1);
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GetMTGS().SendDataPacket();
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if(vif1.tag.size == 0)
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{
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vif1.cmd = 0;
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}
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vif1.vifstalled = true;
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return ret;
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}
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else
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{
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GetMTGS().PrepDataPacket(GIF_PATH_2, size/16);
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uint count = GIFPath_CopyTag(GIF_PATH_2, (u128*)data, size/16) * 4;
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GetMTGS().SendDataPacket();
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vif1.tag.size -= count;
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if(vif1.tag.size == 0)
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{
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vif1.cmd = 0;
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}
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vif1.vifstalled = true;
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return count;
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}
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}
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if(vif1.tag.size == 0)
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{
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vif1.cmd = 0;
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gifRegs->stat.clear_flags(GIF_STAT_APATH2 | GIF_STAT_OPH);
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}
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vif1.vifstalled = true;
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return ret;
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}
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return 0;
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}
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@ -817,6 +817,9 @@ __forceinline int GIFPath::CopyTag(const u128* pMem128, u32 size)
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gsIrq();
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}
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}
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// [TODO] : DMAC Arbitration rights should select the next queued GIF transfer here.
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break;
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}
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if(SIGNAL_IMR_Pending == true)
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@ -873,9 +876,18 @@ __forceinline int GIFPath_CopyTag(GIF_PATH pathidx, const u128* pMem, u32 size)
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{
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switch( pathidx )
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{
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case GIF_PATH_1: return s_gifPath[GIF_PATH_1].CopyTag<GIF_PATH_1,true>(pMem, size);
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case GIF_PATH_2: return s_gifPath[GIF_PATH_2].CopyTag<GIF_PATH_2,false>(pMem, size);
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case GIF_PATH_3: return s_gifPath[GIF_PATH_3].CopyTag<GIF_PATH_3,true>(pMem, size);
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case GIF_PATH_1:
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pxAssertMsg(!s_gifPath[GIF_PATH_2].IsActive(), "GIFpath conflict: Attempted to start PATH1 while PATH2 is already active.");
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pxAssertMsg(!s_gifPath[GIF_PATH_3].IsActive(), "GIFpath conflict: Attempted to start PATH1 while PATH3 is already active.");
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return s_gifPath[GIF_PATH_1].CopyTag<GIF_PATH_1,true>(pMem, size);
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case GIF_PATH_2:
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pxAssertMsg(!s_gifPath[GIF_PATH_1].IsActive(), "GIFpath conflict: Attempted to start PATH2 while PATH1 is already active.");
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pxAssertMsg(!s_gifPath[GIF_PATH_3].IsActive(), "GIFpath conflict: Attempted to start PATH2 while PATH3 is already active.");
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return s_gifPath[GIF_PATH_2].CopyTag<GIF_PATH_2,false>(pMem, size);
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case GIF_PATH_3:
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pxAssertMsg(!s_gifPath[GIF_PATH_1].IsActive(), "GIFpath conflict: Attempted to start PATH3 while PATH1 is already active.");
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pxAssertMsg(!s_gifPath[GIF_PATH_2].IsActive(), "GIFpath conflict: Attempted to start PATH3 while PATH2 is already active.");
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return s_gifPath[GIF_PATH_3].CopyTag<GIF_PATH_3,true>(pMem, size);
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jNO_DEFAULT;
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}
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