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-sgi_mc: Fixed pixel VDMA IRQs. Fixes pixel DMA warnings in IRIX 5.3. [Ryan Holtz]

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This commit is contained in:
MooglyGuy 2019-04-20 22:21:06 +02:00
parent 24b0adbe04
commit 8992df2e90
1 changed files with 9 additions and 6 deletions
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15
src/mame/machine/sgi.cpp
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@ -10,6 +10,7 @@
#include "emu.h"
#include "sgi.h"
#include "ioc2.h"
#define LOG_UNKNOWN (1 << 0)
#define LOG_READS (1 << 1)
@ -22,7 +23,7 @@
#define LOG_DMA (1 << 8)
#define LOG_DEFAULT (LOG_READS | LOG_WRITES | LOG_RPSS | LOG_WATCHDOG | LOG_UNKNOWN)
#define VERBOSE (0)
#define VERBOSE (LOG_UNKNOWN | LOG_READS | LOG_WRITES | LOG_DMA)
#include "logmacro.h"
DEFINE_DEVICE_TYPE(SGI_MC, sgi_mc_device, "sgi_mc", "SGI Memory Controller")
@ -276,7 +277,9 @@ void sgi_mc_device::dma_tick()
m_dma_run &= ~(1 << 6);
if (BIT(m_dma_control, 4))
{
m_hpc3->raise_local_irq(3, 1 << 4);
logerror("Pixel DMA IRQ\n");
m_dma_int_cause |= (1 << 3);
m_hpc3->raise_local_irq(0, ioc2_device::INT3_LOCAL0_MC_DMA);
}
}
else
@ -577,14 +580,14 @@ WRITE32_MEMBER( sgi_mc_device::write )
case 0x0160/4:
LOGMASKED(LOG_WRITES | LOG_DMA, "%s: DMA Interrupt Cause Write: %08x & %08x\n", machine().describe_context(), data, mem_mask);
m_dma_int_cause = data;
if (m_dma_int_cause == 0 && m_hpc3)
{
m_hpc3->lower_local_irq(0, ioc2_device::INT3_LOCAL0_MC_DMA);
}
break;
case 0x0168/4:
LOGMASKED(LOG_WRITES | LOG_DMA, "%s: DMA Control Write: %08x & %08x\n", machine().describe_context(), data, mem_mask);
m_dma_control = data;
if (!BIT(m_dma_control, 4) && m_hpc3)
{
m_hpc3->lower_local_irq(3, 1 << 4);
}
break;
case 0x0180/4:
LOGMASKED(LOG_WRITES | LOG_DMA, "%s: DMA TLB Entry 0 High Write: %08x & %08x\n", machine().describe_context(), data, mem_mask);