From ba09d8ac92d8ac0316218466447e7758266a98ef Mon Sep 17 00:00:00 2001 From: Curtis Dunham Date: Tue, 2 Aug 2016 13:35:47 +0100 Subject: [PATCH] arm: s/ctx_id/ctx/ the GIC Factored out of the larger banked register change. Change-Id: I947dbdb9c00b4678bea9d4f77b913b7014208690 Reviewed-by: Andreas Sandberg --- src/dev/arm/gic_pl390.cc | 168 +++++++++++++++++++-------------------- src/dev/arm/gic_pl390.hh | 22 ++--- 2 files changed, 95 insertions(+), 95 deletions(-) diff --git a/src/dev/arm/gic_pl390.cc b/src/dev/arm/gic_pl390.cc index 0256db69c..5a73c3100 100644 --- a/src/dev/arm/gic_pl390.cc +++ b/src/dev/arm/gic_pl390.cc @@ -123,49 +123,49 @@ Pl390::readDistributor(PacketPtr pkt) { Addr daddr = pkt->getAddr() - distAddr; - ContextID ctx_id = pkt->req->contextId(); + ContextID ctx = pkt->req->contextId(); DPRINTF(GIC, "gic distributor read register %#x\n", daddr); if (GICD_ISENABLER.contains(daddr)) { uint32_t ix = (daddr - GICD_ISENABLER.start()) >> 2; assert(ix < 32); - pkt->set(getIntEnabled(ctx_id, ix)); + pkt->set(getIntEnabled(ctx, ix)); goto done; } if (GICD_ICENABLER.contains(daddr)) { uint32_t ix = (daddr - GICD_ICENABLER.start()) >> 2; assert(ix < 32); - pkt->set(getIntEnabled(ctx_id, ix)); + pkt->set(getIntEnabled(ctx, ix)); goto done; } if (GICD_ISPENDR.contains(daddr)) { uint32_t ix = (daddr - GICD_ISPENDR.start()) >> 2; assert(ix < 32); - pkt->set(getPendingInt(ctx_id, ix)); + pkt->set(getPendingInt(ctx, ix)); goto done; } if (GICD_ICPENDR.contains(daddr)) { uint32_t ix = (daddr - GICD_ICPENDR.start()) >> 2; assert(ix < 32); - pkt->set(getPendingInt(ctx_id, ix)); + pkt->set(getPendingInt(ctx, ix)); goto done; } if (GICD_ISACTIVER.contains(daddr)) { uint32_t ix = (daddr - GICD_ISACTIVER.start()) >> 2; assert(ix < 32); - pkt->set(getPendingInt(ctx_id, ix)); + pkt->set(getPendingInt(ctx, ix)); goto done; } if (GICD_ICACTIVER.contains(daddr)) { uint32_t ix = (daddr - GICD_ICACTIVER.start()) >> 2; assert(ix < 32); - pkt->set(getPendingInt(ctx_id, ix)); + pkt->set(getPendingInt(ctx, ix)); goto done; } @@ -176,19 +176,19 @@ Pl390::readDistributor(PacketPtr pkt) switch (pkt->getSize()) { case 1: - pkt->set(getIntPriority(ctx_id, int_num)); + pkt->set(getIntPriority(ctx, int_num)); break; case 2: assert((int_num + 1) < INT_LINES_MAX); - pkt->set(getIntPriority(ctx_id, int_num) | - getIntPriority(ctx_id, int_num+1) << 8); + pkt->set(getIntPriority(ctx, int_num) | + getIntPriority(ctx, int_num+1) << 8); break; case 4: assert((int_num + 3) < INT_LINES_MAX); - pkt->set(getIntPriority(ctx_id, int_num) | - getIntPriority(ctx_id, int_num+1) << 8 | - getIntPriority(ctx_id, int_num+2) << 16 | - getIntPriority(ctx_id, int_num+3) << 24); + pkt->set(getIntPriority(ctx, int_num) | + getIntPriority(ctx, int_num+1) << 8 | + getIntPriority(ctx, int_num+2) << 16 | + getIntPriority(ctx, int_num+3) << 24); break; default: panic("Invalid size while reading priority regs in GIC: %d\n", @@ -216,13 +216,13 @@ Pl390::readDistributor(PacketPtr pkt) cpuTarget[int_num+3] << 24) ; } } else { - assert(ctx_id < sys->numRunningContexts()); + assert(ctx < sys->numRunningContexts()); uint32_t ctx_mask; if (gem5ExtensionsEnabled) { - ctx_mask = ctx_id; + ctx_mask = ctx; } else { // convert the CPU id number into a bit mask - ctx_mask = power(2, ctx_id); + ctx_mask = power(2, ctx); } // replicate the 8-bit mask 4 times in a 32-bit word ctx_mask |= ctx_mask << 8; @@ -269,28 +269,28 @@ Pl390::readCpu(PacketPtr pkt) Addr daddr = pkt->getAddr() - cpuAddr; assert(pkt->req->hasContextId()); - ContextID ctx_id = pkt->req->contextId(); - assert(ctx_id < sys->numRunningContexts()); + ContextID ctx = pkt->req->contextId(); + assert(ctx < sys->numRunningContexts()); DPRINTF(GIC, "gic cpu read register %#x cpu context: %d\n", daddr, - ctx_id); + ctx); switch(daddr) { case GICC_IIDR: pkt->set(0); break; case GICC_CTLR: - pkt->set(cpuEnabled[ctx_id]); + pkt->set(cpuEnabled[ctx]); break; case GICC_PMR: - pkt->set(cpuPriority[ctx_id]); + pkt->set(cpuPriority[ctx]); break; case GICC_BPR: - pkt->set(cpuBpr[ctx_id]); + pkt->set(cpuBpr[ctx]); break; case GICC_IAR: - if (enabled && cpuEnabled[ctx_id]) { - int active_int = cpuHighestInt[ctx_id]; + if (enabled && cpuEnabled[ctx]) { + int active_int = cpuHighestInt[ctx]; IAR iar = 0; iar.ack_id = active_int; iar.cpu_id = 0; @@ -304,39 +304,39 @@ Pl390::readCpu(PacketPtr pkt) // See which CPU generated the interrupt uint8_t cpugen = bits(cpuSgiPending[active_int], 7 + 8 * x, 8 * x); - if (cpugen & (1 << ctx_id)) { + if (cpugen & (1 << ctx)) { iar.cpu_id = x; break; } } - uint64_t sgi_num = ULL(1) << (ctx_id + 8 * iar.cpu_id); + uint64_t sgi_num = ULL(1) << (ctx + 8 * iar.cpu_id); cpuSgiActive[iar.ack_id] |= sgi_num; cpuSgiPending[iar.ack_id] &= ~sgi_num; } else { uint64_t sgi_num = ULL(1) << iar.ack_id; - cpuSgiActiveExt[ctx_id] |= sgi_num; - cpuSgiPendingExt[ctx_id] &= ~sgi_num; + cpuSgiActiveExt[ctx] |= sgi_num; + cpuSgiPendingExt[ctx] &= ~sgi_num; } } else if (active_int < (SGI_MAX + PPI_MAX) ) { - uint32_t int_num = 1 << (cpuHighestInt[ctx_id] - SGI_MAX); - cpuPpiActive[ctx_id] |= int_num; + uint32_t int_num = 1 << (cpuHighestInt[ctx] - SGI_MAX); + cpuPpiActive[ctx] |= int_num; updateRunPri(); - cpuPpiPending[ctx_id] &= ~int_num; + cpuPpiPending[ctx] &= ~int_num; } else { - uint32_t int_num = 1 << intNumToBit(cpuHighestInt[ctx_id]); - activeInt[intNumToWord(cpuHighestInt[ctx_id])] |= int_num; + uint32_t int_num = 1 << intNumToBit(cpuHighestInt[ctx]); + getActiveInt(ctx, intNumToWord(cpuHighestInt[ctx])) |= int_num; updateRunPri(); - getPendingInt(ctx_id, intNumToWord(cpuHighestInt[ctx_id])) + getPendingInt(ctx, intNumToWord(cpuHighestInt[ctx])) &= ~int_num; } DPRINTF(Interrupt,"CPU %d reading IAR.id=%d IAR.cpu=%d, iar=0x%x\n", - ctx_id, iar.ack_id, iar.cpu_id, iar); - cpuHighestInt[ctx_id] = SPURIOUS_INT; + ctx, iar.ack_id, iar.cpu_id, iar); + cpuHighestInt[ctx] = SPURIOUS_INT; updateIntState(-1); pkt->set(iar); - platform->intrctrl->clear(ctx_id, ArmISA::INT_IRQ, 0); + platform->intrctrl->clear(ctx, ArmISA::INT_IRQ, 0); } else { pkt->set(SPURIOUS_INT); } @@ -363,7 +363,7 @@ Pl390::writeDistributor(PacketPtr pkt) Addr daddr = pkt->getAddr() - distAddr; assert(pkt->req->hasContextId()); - ContextID ctx_id = pkt->req->contextId(); + ContextID ctx = pkt->req->contextId(); uint32_t pkt_data M5_VAR_USED; switch (pkt->getSize()) @@ -388,14 +388,14 @@ Pl390::writeDistributor(PacketPtr pkt) if (GICD_ISENABLER.contains(daddr)) { uint32_t ix = (daddr - GICD_ISENABLER.start()) >> 2; assert(ix < 32); - getIntEnabled(ctx_id, ix) |= pkt->get(); + getIntEnabled(ctx, ix) |= pkt->get(); goto done; } if (GICD_ICENABLER.contains(daddr)) { uint32_t ix = (daddr - GICD_ICENABLER.start()) >> 2; assert(ix < 32); - getIntEnabled(ctx_id, ix) &= ~pkt->get(); + getIntEnabled(ctx, ix) &= ~pkt->get(); goto done; } @@ -403,7 +403,7 @@ Pl390::writeDistributor(PacketPtr pkt) uint32_t ix = (daddr - GICD_ISPENDR.start()) >> 2; auto mask = pkt->get(); if (ix == 0) mask &= SGI_MASK; // Don't allow SGIs to be changed - getPendingInt(ctx_id, ix) |= mask; + getPendingInt(ctx, ix) |= mask; updateIntState(ix); goto done; } @@ -412,20 +412,20 @@ Pl390::writeDistributor(PacketPtr pkt) uint32_t ix = (daddr - GICD_ICPENDR.start()) >> 2; auto mask = pkt->get(); if (ix == 0) mask &= SGI_MASK; // Don't allow SGIs to be changed - getPendingInt(ctx_id, ix) &= ~mask; + getPendingInt(ctx, ix) &= ~mask; updateIntState(ix); goto done; } if (GICD_ISACTIVER.contains(daddr)) { uint32_t ix = (daddr - GICD_ISACTIVER.start()) >> 2; - getActiveInt(ctx_id, ix) |= pkt->get(); + getActiveInt(ctx, ix) |= pkt->get(); goto done; } if (GICD_ICACTIVER.contains(daddr)) { uint32_t ix = (daddr - GICD_ICACTIVER.start()) >> 2; - getActiveInt(ctx_id, ix) &= ~pkt->get(); + getActiveInt(ctx, ix) &= ~pkt->get(); goto done; } @@ -433,20 +433,20 @@ Pl390::writeDistributor(PacketPtr pkt) Addr int_num = daddr - GICD_IPRIORITYR.start(); switch(pkt->getSize()) { case 1: - getIntPriority(ctx_id, int_num) = pkt->get(); + getIntPriority(ctx, int_num) = pkt->get(); break; case 2: { auto tmp16 = pkt->get(); - getIntPriority(ctx_id, int_num) = bits(tmp16, 7, 0); - getIntPriority(ctx_id, int_num + 1) = bits(tmp16, 15, 8); + getIntPriority(ctx, int_num) = bits(tmp16, 7, 0); + getIntPriority(ctx, int_num + 1) = bits(tmp16, 15, 8); break; } case 4: { auto tmp32 = pkt->get(); - getIntPriority(ctx_id, int_num) = bits(tmp32, 7, 0); - getIntPriority(ctx_id, int_num + 1) = bits(tmp32, 15, 8); - getIntPriority(ctx_id, int_num + 2) = bits(tmp32, 23, 16); - getIntPriority(ctx_id, int_num + 3) = bits(tmp32, 31, 24); + getIntPriority(ctx, int_num) = bits(tmp32, 7, 0); + getIntPriority(ctx, int_num + 1) = bits(tmp32, 15, 8); + getIntPriority(ctx, int_num + 2) = bits(tmp32, 23, 16); + getIntPriority(ctx, int_num + 3) = bits(tmp32, 31, 24); break; } default: @@ -504,7 +504,7 @@ Pl390::writeDistributor(PacketPtr pkt) gem5ExtensionsEnabled ? "enabled" : "disabled"); break; case GICD_SGIR: - softInt(ctx_id, pkt->get()); + softInt(ctx, pkt->get()); break; default: panic("Tried to write Gic distributor at offset %#x\n", daddr); @@ -522,72 +522,72 @@ Pl390::writeCpu(PacketPtr pkt) Addr daddr = pkt->getAddr() - cpuAddr; assert(pkt->req->hasContextId()); - ContextID ctx_id = pkt->req->contextId(); + ContextID ctx = pkt->req->contextId(); IAR iar; DPRINTF(GIC, "gic cpu write register cpu:%d %#x val: %#x\n", - ctx_id, daddr, pkt->get()); + ctx, daddr, pkt->get()); switch(daddr) { case GICC_CTLR: - cpuEnabled[ctx_id] = pkt->get(); + cpuEnabled[ctx] = pkt->get(); break; case GICC_PMR: - cpuPriority[ctx_id] = pkt->get(); + cpuPriority[ctx] = pkt->get(); break; case GICC_BPR: - cpuBpr[ctx_id] = pkt->get(); + cpuBpr[ctx] = pkt->get(); break; case GICC_EOIR: iar = pkt->get(); if (iar.ack_id < SGI_MAX) { // Clear out the bit that corrseponds to the cleared int - uint64_t clr_int = ULL(1) << (ctx_id + 8 * iar.cpu_id); + uint64_t clr_int = ULL(1) << (ctx + 8 * iar.cpu_id); if (!(cpuSgiActive[iar.ack_id] & clr_int) && - !(cpuSgiActiveExt[ctx_id] & (1 << iar.ack_id))) + !(cpuSgiActiveExt[ctx] & (1 << iar.ack_id))) panic("Done handling a SGI that isn't active?\n"); if (gem5ExtensionsEnabled) - cpuSgiActiveExt[ctx_id] &= ~(1 << iar.ack_id); + cpuSgiActiveExt[ctx] &= ~(1 << iar.ack_id); else cpuSgiActive[iar.ack_id] &= ~clr_int; } else if (iar.ack_id < (SGI_MAX + PPI_MAX) ) { uint32_t int_num = 1 << (iar.ack_id - SGI_MAX); - if (!(cpuPpiActive[ctx_id] & int_num)) + if (!(cpuPpiActive[ctx] & int_num)) panic("CPU %d Done handling a PPI interrupt " - "that isn't active?\n", ctx_id); - cpuPpiActive[ctx_id] &= ~int_num; + "that isn't active?\n", ctx); + cpuPpiActive[ctx] &= ~int_num; } else { uint32_t int_num = 1 << intNumToBit(iar.ack_id); - if (!(getActiveInt(ctx_id, intNumToWord(iar.ack_id)) & int_num)) + if (!(getActiveInt(ctx, intNumToWord(iar.ack_id)) & int_num)) warn("Done handling interrupt that isn't active: %d\n", intNumToBit(iar.ack_id)); - getActiveInt(ctx_id, intNumToWord(iar.ack_id)) &= ~int_num; + getActiveInt(ctx, intNumToWord(iar.ack_id)) &= ~int_num; } updateRunPri(); DPRINTF(Interrupt, "CPU %d done handling intr IAR = %d from cpu %d\n", - ctx_id, iar.ack_id, iar.cpu_id); + ctx, iar.ack_id, iar.cpu_id); break; default: panic("Tried to write Gic cpu at offset %#x\n", daddr); break; } - if (cpuEnabled[ctx_id]) updateIntState(-1); + if (cpuEnabled[ctx]) updateIntState(-1); pkt->makeAtomicResponse(); return cpuPioDelay; } Pl390::BankedRegs& -Pl390::getBankedRegs(ContextID ctx_id) { - if (bankedRegs.size() <= ctx_id) - bankedRegs.resize(ctx_id + 1); +Pl390::getBankedRegs(ContextID ctx) { + if (bankedRegs.size() <= ctx) + bankedRegs.resize(ctx + 1); - if (!bankedRegs[ctx_id]) - bankedRegs[ctx_id] = new BankedRegs; - return *bankedRegs[ctx_id]; + if (!bankedRegs[ctx]) + bankedRegs[ctx] = new BankedRegs; + return *bankedRegs[ctx]; } void -Pl390::softInt(ContextID ctx_id, SWI swi) +Pl390::softInt(ContextID ctx, SWI swi) { if (gem5ExtensionsEnabled) { switch (swi.list_type) { @@ -595,7 +595,7 @@ Pl390::softInt(ContextID ctx_id, SWI swi) // interrupt cpus specified int dest = swi.cpu_list; DPRINTF(IPI, "Generating softIRQ from CPU %d for CPU %d\n", - ctx_id, dest); + ctx, dest); if (cpuEnabled[dest]) { cpuSgiPendingExt[dest] |= (1 << swi.sgi_id); DPRINTF(IPI, "SGI[%d]=%#x\n", dest, @@ -616,11 +616,11 @@ Pl390::softInt(ContextID ctx_id, SWI swi) case 2: { // Interrupt requesting cpu only DPRINTF(IPI, "Generating softIRQ from CPU %d for CPU %d\n", - ctx_id, ctx_id); - if (cpuEnabled[ctx_id]) { - cpuSgiPendingExt[ctx_id] |= (1 << swi.sgi_id); - DPRINTF(IPI, "SGI[%d]=%#x\n", ctx_id, - cpuSgiPendingExt[ctx_id]); + ctx, ctx); + if (cpuEnabled[ctx]) { + cpuSgiPendingExt[ctx] |= (1 << swi.sgi_id); + DPRINTF(IPI, "SGI[%d]=%#x\n", ctx, + cpuSgiPendingExt[ctx]); } } break; } @@ -636,19 +636,19 @@ Pl390::softInt(ContextID ctx_id, SWI swi) break; case 2: // interrupt requesting cpu only - swi.cpu_list = 1 << ctx_id; + swi.cpu_list = 1 << ctx; break; // else interrupt cpus specified } - DPRINTF(IPI, "Generating softIRQ from CPU %d for %#x\n", ctx_id, + DPRINTF(IPI, "Generating softIRQ from CPU %d for %#x\n", ctx, swi.cpu_list); for (int i = 0; i < sys->numContexts(); i++) { DPRINTF(IPI, "Processing CPU %d\n", i); if (!cpuEnabled[i]) continue; if (swi.cpu_list & (1 << i)) - cpuSgiPending[swi.sgi_id] |= (1 << i) << (8 * ctx_id); + cpuSgiPending[swi.sgi_id] |= (1 << i) << (8 * ctx); DPRINTF(IPI, "SGI[%d]=%#x\n", swi.sgi_id, cpuSgiPending[swi.sgi_id]); } diff --git a/src/dev/arm/gic_pl390.hh b/src/dev/arm/gic_pl390.hh index e406bc260..b1164f961 100644 --- a/src/dev/arm/gic_pl390.hh +++ b/src/dev/arm/gic_pl390.hh @@ -189,9 +189,9 @@ class Pl390 : public BaseGic * 1b per interrupt, 32 bits per word, 31 words */ uint32_t intEnabled[INT_BITS_MAX-1]; - uint32_t& getIntEnabled(ContextID ctx_id, uint32_t ix) { + uint32_t& getIntEnabled(ContextID ctx, uint32_t ix) { if (ix == 0) { - return getBankedRegs(ctx_id).intEnabled; + return getBankedRegs(ctx).intEnabled; } else { return intEnabled[ix - 1]; } @@ -202,10 +202,10 @@ class Pl390 : public BaseGic * 1b per interrupt, 32 bits per word, 31 words */ uint32_t pendingInt[INT_BITS_MAX-1]; - uint32_t& getPendingInt(ContextID ctx_id, uint32_t ix) { + uint32_t& getPendingInt(ContextID ctx, uint32_t ix) { assert(ix < INT_BITS_MAX); if (ix == 0) { - return getBankedRegs(ctx_id).pendingInt; + return getBankedRegs(ctx).pendingInt; } else { return pendingInt[ix - 1]; } @@ -216,10 +216,10 @@ class Pl390 : public BaseGic * 1b per interrupt, 32 bits per word, 31 words */ uint32_t activeInt[INT_BITS_MAX-1]; - uint32_t& getActiveInt(ContextID ctx_id, uint32_t ix) { + uint32_t& getActiveInt(ContextID ctx, uint32_t ix) { assert(ix < INT_BITS_MAX); if (ix == 0) { - return getBankedRegs(ctx_id).activeInt; + return getBankedRegs(ctx).activeInt; } else { return activeInt[ix - 1]; } @@ -234,10 +234,10 @@ class Pl390 : public BaseGic */ uint8_t intPriority[GLOBAL_INT_LINES]; - uint8_t& getIntPriority(ContextID ctx_id, uint32_t ix) { + uint8_t& getIntPriority(ContextID ctx, uint32_t ix) { assert(ix < INT_LINES_MAX); if (ix < SGI_MAX + PPI_MAX) { - return getBankedRegs(ctx_id).intPriority[ix]; + return getBankedRegs(ctx).intPriority[ix]; } else { return intPriority[ix - (SGI_MAX + PPI_MAX)]; } @@ -248,10 +248,10 @@ class Pl390 : public BaseGic */ uint8_t cpuTarget[GLOBAL_INT_LINES]; - uint8_t& getCpuTarget(ContextID ctx_id, uint32_t ix) { + uint8_t& getCpuTarget(ContextID ctx, uint32_t ix) { assert(ix < INT_LINES_MAX); if (ix < SGI_MAX + PPI_MAX) { - return getBankedRegs(ctx_id).cpuTarget[ix]; + return getBankedRegs(ctx).cpuTarget[ix]; } else { return cpuTarget[ix - (SGI_MAX + PPI_MAX)]; } @@ -297,7 +297,7 @@ class Pl390 : public BaseGic /** software generated interrupt * @param data data to decode that indicates which cpus to interrupt */ - void softInt(ContextID ctx_id, SWI swi); + void softInt(ContextID ctx, SWI swi); /** See if some processor interrupt flags need to be enabled/disabled * @param hint which set of interrupts needs to be checked -- 2.30.2