diff options
Diffstat (limited to 'src/dev/arm/kmi.cc')
-rw-r--r-- | src/dev/arm/kmi.cc | 34 |
1 files changed, 14 insertions, 20 deletions
diff --git a/src/dev/arm/kmi.cc b/src/dev/arm/kmi.cc index 941546743..9230c15d2 100644 --- a/src/dev/arm/kmi.cc +++ b/src/dev/arm/kmi.cc @@ -1,5 +1,5 @@ /* - * Copyright (c) 2010 ARM Limited + * Copyright (c) 2010, 2017 ARM Limited * All rights reserved * * The license below extends only to copyright in the software and shall @@ -53,7 +53,7 @@ Pl050::Pl050(const Params *p) : AmbaIntDevice(p, 0xfff), control(0), status(0x43), clkdiv(0), - interrupts(0), rawInterrupts(0), ackNext(false), shiftDown(false), + rawInterrupts(0), ackNext(false), shiftDown(false), vnc(p->vnc), driverInitialized(false), intEvent(this) { if (vnc) { @@ -101,8 +101,8 @@ Pl050::read(PacketPtr pkt) data = clkdiv; break; case kmiISR: - data = interrupts; - DPRINTF(Pl050, "Read Interrupts: %#x\n", (uint32_t)interrupts); + data = getInterrupt(); + DPRINTF(Pl050, "Read Interrupts: %#x\n", getInterrupt()); break; default: if (readId(pkt, ambaId, pioAddr)) { @@ -238,28 +238,29 @@ Pl050::processCommand(uint8_t byte) void Pl050::updateIntStatus() { + const bool old_interrupt(getInterrupt()); + if (!rxQueue.empty()) rawInterrupts.rx = 1; else rawInterrupts.rx = 0; - interrupts.tx = rawInterrupts.tx & control.txint_enable; - interrupts.rx = rawInterrupts.rx & control.rxint_enable; - - DPRINTF(Pl050, "rawInterupts=%#x control=%#x interrupts=%#x\n", - (uint32_t)rawInterrupts, (uint32_t)control, (uint32_t)interrupts); - - if (interrupts && !intEvent.scheduled()) + if ((!old_interrupt && getInterrupt()) && !intEvent.scheduled()) { schedule(intEvent, curTick() + intDelay); + } else if (old_interrupt && !(getInterrupt())) { + gic->clearInt(intNum); + } } void Pl050::generateInterrupt() { + DPRINTF(Pl050, "Generate Interrupt: rawInt=%#x ctrl=%#x int=%#x\n", + rawInterrupts, control, getInterrupt()); - if (interrupts) { + if (getInterrupt()) { gic->sendInt(intNum); - DPRINTF(Pl050, "Generated interrupt\n"); + DPRINTF(Pl050, " -- Generated\n"); } } @@ -318,9 +319,6 @@ Pl050::serialize(CheckpointOut &cp) const SERIALIZE_SCALAR(stsreg); SERIALIZE_SCALAR(clkdiv); - uint8_t ints = interrupts; - SERIALIZE_SCALAR(ints); - uint8_t raw_ints = rawInterrupts; SERIALIZE_SCALAR(raw_ints); @@ -344,10 +342,6 @@ Pl050::unserialize(CheckpointIn &cp) UNSERIALIZE_SCALAR(clkdiv); - uint8_t ints; - UNSERIALIZE_SCALAR(ints); - interrupts = ints; - uint8_t raw_ints; UNSERIALIZE_SCALAR(raw_ints); rawInterrupts = raw_ints; |