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More interrupts.

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- Add all the interrupts including DMA.
- Modify the Interrupt to IRQ_ID translation so the interrupts belonging to the first set of 32 interrupts don't need to be shifted.
This commit is contained in:
joevt 2023-09-18 16:57:45 -07:00 committed by dingusdev
parent e5bace03f7
commit 54767bf97d
2 changed files with 121 additions and 31 deletions
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52
devices/ioctrl/grandcentral.cpp
View File

@ -305,25 +305,59 @@ void GrandCentral::attach_iodevice(int dev_num, IobusDevice* dev_obj)
}
}
#define INT_TO_IRQ_ID(intx) (1 << intx)
uint32_t GrandCentral::register_dev_int(IntSrc src_id) {
switch (src_id) {
case IntSrc::SCSI_CURIO: return 1 << 12;
case IntSrc::SCSI_MESH: return 1 << 13;
case IntSrc::VIA_CUDA: return 1 << 18;
case IntSrc::SWIM3: return 1 << 19;
case IntSrc::CONTROL: return 1 << 26;
case IntSrc::PLATINUM: return 1 << 30;
case IntSrc::SCSI_CURIO : return INT_TO_IRQ_ID(0x0C);
case IntSrc::SCSI_MESH : return INT_TO_IRQ_ID(0x0D);
case IntSrc::ETHERNET : return INT_TO_IRQ_ID(0x0E);
case IntSrc::SCCA : return INT_TO_IRQ_ID(0x0F);
case IntSrc::SCCB : return INT_TO_IRQ_ID(0x10);
case IntSrc::DAVBUS : return INT_TO_IRQ_ID(0x11);
case IntSrc::VIA_CUDA : return INT_TO_IRQ_ID(0x12);
case IntSrc::SWIM3 : return INT_TO_IRQ_ID(0x13);
case IntSrc::NMI : return INT_TO_IRQ_ID(0x14); // EXT0 // nmiSource in AppleGrandCentral/AppleGrandCentral.cpp
case IntSrc::EXT1 : return INT_TO_IRQ_ID(0x15); // EXT1 // Iridium
case IntSrc::BANDIT1 : return INT_TO_IRQ_ID(0x16); // EXT2
case IntSrc::PCI_A : return INT_TO_IRQ_ID(0x17); // EXT3
case IntSrc::PCI_B : return INT_TO_IRQ_ID(0x18); // EXT4
case IntSrc::PCI_C : return INT_TO_IRQ_ID(0x19); // EXT5
case IntSrc::BANDIT2 : return INT_TO_IRQ_ID(0x1A); // EXT6
case IntSrc::PCI_D : return INT_TO_IRQ_ID(0x1B); // EXT7
case IntSrc::PCI_E : return INT_TO_IRQ_ID(0x1C); // EXT8
case IntSrc::PCI_F : return INT_TO_IRQ_ID(0x1D); // EXT9
case IntSrc::CONTROL : return INT_TO_IRQ_ID(0x1A); // EXT6
case IntSrc::SIXTY6 : return INT_TO_IRQ_ID(0x1B); // EXT7
case IntSrc::PLANB : return INT_TO_IRQ_ID(0x1C); // EXT8
case IntSrc::VCI : return INT_TO_IRQ_ID(0x1D); // EXT9
case IntSrc::PLATINUM : return INT_TO_IRQ_ID(0x1E); // EXT10
default:
ABORT_F("%s: unknown interrupt source %d", this->name.c_str(), src_id);
}
return 0;
}
#define DMA_INT_TO_IRQ_ID(intx) (1 << intx)
uint32_t GrandCentral::register_dma_int(IntSrc src_id) {
switch (src_id) {
case IntSrc::DMA_SCSI_CURIO: return 1 << 0;
case IntSrc::DMA_SWIM3: return 1 << 1;
case IntSrc::DMA_SCSI_MESH: return 1 << 10;
case IntSrc::DMA_SCSI_CURIO : return DMA_INT_TO_IRQ_ID(0x00);
case IntSrc::DMA_SWIM3 : return DMA_INT_TO_IRQ_ID(0x01);
case IntSrc::DMA_ETHERNET_Tx : return DMA_INT_TO_IRQ_ID(0x02);
case IntSrc::DMA_ETHERNET_Rx : return DMA_INT_TO_IRQ_ID(0x03);
case IntSrc::DMA_SCCA_Tx : return DMA_INT_TO_IRQ_ID(0x04);
case IntSrc::DMA_SCCA_Rx : return DMA_INT_TO_IRQ_ID(0x05);
case IntSrc::DMA_SCCB_Tx : return DMA_INT_TO_IRQ_ID(0x06);
case IntSrc::DMA_SCCB_Rx : return DMA_INT_TO_IRQ_ID(0x07);
case IntSrc::DMA_DAVBUS_Tx : return DMA_INT_TO_IRQ_ID(0x08);
case IntSrc::DMA_DAVBUS_Rx : return DMA_INT_TO_IRQ_ID(0x09);
case IntSrc::DMA_SCSI_MESH : return DMA_INT_TO_IRQ_ID(0x0A);
default:
ABORT_F("%s: unknown DMA interrupt source %d", this->name.c_str(), src_id);
}

100
devices/ioctrl/heathrow.cpp
View File

@ -91,7 +91,7 @@ HeathrowIC::HeathrowIC() : PCIDevice("mac-io/heathrow"), InterruptCtrl()
this->swim3 = dynamic_cast<Swim3::Swim3Ctrl*>(gMachineObj->get_comp_by_name("Swim3"));
this->floppy_dma = std::unique_ptr<DMAChannel> (new DMAChannel("floppy"));
this->swim3->set_dma_channel(this->floppy_dma.get());
this->floppy_dma->register_dma_int(this, 2);
this->floppy_dma->register_dma_int(this, this->register_dma_int(IntSrc::DMA_SWIM3));
// connect Ethernet HW
this->bmac = dynamic_cast<BigMac*>(gMachineObj->get_comp_by_type(HWCompType::ETHER_MAC));
@ -363,36 +363,87 @@ void HeathrowIC::feature_control(const uint32_t value)
}
}
#define FIRST_INT1_BIT 12 // The first ten are DMA, the next 2 appear to be unused. We'll map 1:1 the INT1 bits 31..12 (0x1F..0x0C) as IRQ_ID bits.
#define FIRST_INT2_BIT 2 // Skip the first two which are Ethernet DMA. We'll map INT2 bits 13..2 (interrupts 45..34 or 0x2D..0x22) as IRQ_ID bits 11..0.
#define FIRST_INT1_IRQ_ID_BIT 12 // Same as INT1_BIT so there won't be any shifting required.
#define FIRST_INT2_IRQ_ID_BIT 0
#define INT1_TO_IRQ_ID(int1) (1 << (int1 - FIRST_INT1_BIT + FIRST_INT1_IRQ_ID_BIT))
#define INT2_TO_IRQ_ID(int2) (1 << (int2 - FIRST_INT2_BIT + FIRST_INT2_IRQ_ID_BIT - 32))
#define INT_TO_IRQ_ID(intx) (intx < 32 ? INT1_TO_IRQ_ID(intx) : INT2_TO_IRQ_ID(intx))
#define IS_INT1(irq_id) (irq_id >= 1 << FIRST_INT1_IRQ_ID_BIT)
#define IRQ_ID_TO_INT1_MASK(irq_id) (irq_id <<= (FIRST_INT1_BIT - FIRST_INT1_IRQ_ID_BIT))
#define IRQ_ID_TO_INT2_MASK(irq_id) (irq_id <<= (FIRST_INT2_BIT - FIRST_INT2_IRQ_ID_BIT))
uint32_t HeathrowIC::register_dev_int(IntSrc src_id)
{
switch (src_id) {
case IntSrc::SCSI_MESH:
return 1 << 1;
case IntSrc::IDE0:
return 1 << 2;
case IntSrc::IDE1:
return 1 << 3;
case IntSrc::VIA_CUDA:
return 1 << 7;
case IntSrc::SWIM3:
return 1 << 8;
case IntSrc::SCSI_MESH : return INT_TO_IRQ_ID(0x0C);
case IntSrc::IDE0 : return INT_TO_IRQ_ID(0x0D);
case IntSrc::IDE1 : return INT_TO_IRQ_ID(0x0E);
case IntSrc::SCCA : return INT_TO_IRQ_ID(0x0F);
case IntSrc::SCCB : return INT_TO_IRQ_ID(0x10);
case IntSrc::DAVBUS : return INT_TO_IRQ_ID(0x11);
case IntSrc::VIA_CUDA : return INT_TO_IRQ_ID(0x12);
case IntSrc::SWIM3 : return INT_TO_IRQ_ID(0x13);
case IntSrc::NMI : return INT_TO_IRQ_ID(0x14); // nmiSource in AppleHeathrow/Heathrow.cpp
case IntSrc::PERCH2 : return INT_TO_IRQ_ID(0x15);
case IntSrc::PCI_GPU : return INT_TO_IRQ_ID(0x16);
case IntSrc::PCI_A : return INT_TO_IRQ_ID(0x17);
case IntSrc::PCI_B : return INT_TO_IRQ_ID(0x18);
case IntSrc::PCI_C : return INT_TO_IRQ_ID(0x19);
case IntSrc::PERCH1 : return INT_TO_IRQ_ID(0x1A);
case IntSrc::PCI_PERCH : return INT_TO_IRQ_ID(0x1C);
case IntSrc::ETHERNET : return INT_TO_IRQ_ID(0x2A);
default:
ABORT_F("Heathrow: unknown interrupt source %d", src_id);
}
return 0;
}
#define FIRST_DMA_INT1_BIT 0 // bit 0 is SCSI DMA
#define FIRST_DMA_INT2_BIT 0 // bit 0 is Ethernet DMA Tx
#define FIRST_DMA_INT1_IRQ_ID_BIT 0
#define FIRST_DMA_INT2_IRQ_ID_BIT 16 // There's only 10 INT1 DMA bits but we'll put INT2 DMA bits in the upper 16 bits
#define DMA_INT1_TO_IRQ_ID(int1) (1 << (int1 - FIRST_DMA_INT1_BIT + FIRST_DMA_INT1_IRQ_ID_BIT))
#define DMA_INT2_TO_IRQ_ID(int2) (1 << (int2 - FIRST_DMA_INT2_BIT + FIRST_DMA_INT2_IRQ_ID_BIT - 32))
#define DMA_INT_TO_IRQ_ID(intx) (intx < 32 ? DMA_INT1_TO_IRQ_ID(intx) : DMA_INT2_TO_IRQ_ID(intx))
#define IS_DMA_INT1(irq_id) (irq_id < 1 << FIRST_DMA_INT2_IRQ_ID_BIT)
#define DMA_IRQ_ID_TO_INT1_MASK(irq_id) (irq_id <<= (FIRST_DMA_INT1_BIT - FIRST_DMA_INT1_IRQ_ID_BIT))
#define DMA_IRQ_ID_TO_INT2_MASK(irq_id) (irq_id >>= (FIRST_DMA_INT2_IRQ_ID_BIT - FIRST_DMA_INT2_BIT))
uint32_t HeathrowIC::register_dma_int(IntSrc src_id)
{
ABORT_F("Heathrow: register_dma_int() not implemented");
switch (src_id) {
case IntSrc::DMA_SCSI_MESH : return DMA_INT_TO_IRQ_ID(0x00);
case IntSrc::DMA_SWIM3 : return DMA_INT_TO_IRQ_ID(0x01);
case IntSrc::DMA_IDE0 : return DMA_INT_TO_IRQ_ID(0x02);
case IntSrc::DMA_IDE1 : return DMA_INT_TO_IRQ_ID(0x03);
case IntSrc::DMA_SCCA_Tx : return DMA_INT_TO_IRQ_ID(0x04);
case IntSrc::DMA_SCCA_Rx : return DMA_INT_TO_IRQ_ID(0x05);
case IntSrc::DMA_SCCB_Tx : return DMA_INT_TO_IRQ_ID(0x06);
case IntSrc::DMA_SCCB_Rx : return DMA_INT_TO_IRQ_ID(0x07);
case IntSrc::DMA_DAVBUS_Tx : return DMA_INT_TO_IRQ_ID(0x08);
case IntSrc::DMA_DAVBUS_Rx : return DMA_INT_TO_IRQ_ID(0x09);
case IntSrc::DMA_ETHERNET_Tx : return DMA_INT_TO_IRQ_ID(0x20);
case IntSrc::DMA_ETHERNET_Rx : return DMA_INT_TO_IRQ_ID(0x21);
default:
ABORT_F("Heathrow: unknown DMA interrupt source %d", src_id);
}
return 0;
}
void HeathrowIC::ack_int(uint32_t irq_id, uint8_t irq_line_state)
{
#if 1
if (irq_id >= (1 << 20)) { // does this irq_id belong to the second set?
irq_id >>= (20 - 10); // adjust for non-DMA interrupt bits of the 2nd set
if (!IS_INT1(irq_id)) { // does this irq_id belong to the second set?
IRQ_ID_TO_INT2_MASK(irq_id);
#if 0
LOG_F(INFO, "%s: native interrupt events:%08x.%08x levels:%08x.%08x change2:%08x state:%d", this->name.c_str(), this->int_events1, this->int_events2, this->int_levels1, this->int_levels2, irq_id, irq_line_state);
#endif
// native mode: set IRQ bits in int_events2 on a 0-to-1 transition
// emulated mode: set IRQ bits in int_events2 on all transitions
if ((this->int_mask1 & MACIO_INT_MODE) ||
@ -409,9 +460,12 @@ void HeathrowIC::ack_int(uint32_t irq_id, uint8_t irq_line_state)
this->int_levels2 &= ~irq_id;
}
} else {
irq_id <<= 11; // adjust for non-DMA interrupt bits of the first set
IRQ_ID_TO_INT1_MASK(irq_id);
// native mode: set IRQ bits in int_events1 on a 0-to-1 transition
// emulated mode: set IRQ bits in int_events1 on all transitions
#if 0
LOG_F(INFO, "%s: native interrupt events:%08x.%08x levels:%08x.%08x change1:%08x state:%d", this->name.c_str(), this->int_events1, this->int_events2, this->int_levels1, this->int_levels2, irq_id, irq_line_state);
#endif
if ((this->int_mask1 & MACIO_INT_MODE) ||
(irq_line_state && !(this->int_levels1 & irq_id))) {
this->int_events1 |= irq_id;
@ -432,8 +486,8 @@ void HeathrowIC::ack_int(uint32_t irq_id, uint8_t irq_line_state)
#if 0
if (this->int_mask1 & MACIO_INT_MODE) { // 68k interrupt emulation mode?
if (irq_id >= (1 << 20)) { // irq_id in the range of int_events2?
irq_id >>= (20 - 10); // adjust for non-DMA interrupt bits of int_events2
if (!IS_INT1(irq_id)) {
IRQ_ID_TO_INT2_MASK(irq_id);
this->int_events2 |= irq_id; // signal IRQ line change
this->int_events2 &= this->int_mask2;
// update IRQ line state
@ -443,7 +497,7 @@ void HeathrowIC::ack_int(uint32_t irq_id, uint8_t irq_line_state)
this->int_levels2 &= ~irq_id;
}
} else {
irq_id <<= 11;
IRQ_ID_TO_INT1_MASK(irq_id);
this->int_events1 |= irq_id; // signal IRQ line change
this->int_events1 &= this->int_mask1;
// update IRQ line state
@ -463,8 +517,8 @@ void HeathrowIC::ack_int(uint32_t irq_id, uint8_t irq_line_state)
void HeathrowIC::ack_dma_int(uint32_t irq_id, uint8_t irq_line_state)
{
#if 1
if (irq_id >= (1 << 10)) { // does this irq_id belong to the second set?
irq_id >>= 10; // adjust for DMA interrupt bits of the 2nd set
if (!IS_DMA_INT1(irq_id)) {
DMA_IRQ_ID_TO_INT2_MASK(irq_id);
// native mode: set IRQ bits in int_events2 on a 0-to-1 transition
// emulated mode: set IRQ bits in int_events2 on all transitions
if ((this->int_mask1 & MACIO_INT_MODE) ||
@ -481,6 +535,7 @@ void HeathrowIC::ack_dma_int(uint32_t irq_id, uint8_t irq_line_state)
this->int_levels2 &= ~irq_id;
}
} else {
DMA_IRQ_ID_TO_INT1_MASK(irq_id);
// native mode: set IRQ bits in int_events1 on a 0-to-1 transition
// emulated mode: set IRQ bits in int_events1 on all transitions
if ((this->int_mask1 & MACIO_INT_MODE) ||
@ -503,8 +558,8 @@ void HeathrowIC::ack_dma_int(uint32_t irq_id, uint8_t irq_line_state)
#if 0
if (this->int_mask1 & MACIO_INT_MODE) { // 68k interrupt emulation mode?
if (irq_id >= (1 << 10)) { // irq_id in the range of int_events2?
irq_id >>= 10; // adjust for DMA interrupt bits of int_events2
if (!IS_DMA_INT1(irq_id)) {
DMA_IRQ_ID_TO_INT2_MASK(irq_id);
this->int_events2 |= irq_id; // signal IRQ line change
this->int_events2 &= this->int_mask2;
// update IRQ line state
@ -514,6 +569,7 @@ void HeathrowIC::ack_dma_int(uint32_t irq_id, uint8_t irq_line_state)
this->int_levels2 &= ~irq_id;
}
} else {
DMA_IRQ_ID_TO_INT1_MASK(irq_id);
this->int_events1 |= irq_id; // signal IRQ line change
this->int_events1 &= this->int_mask1;
// update IRQ line state