diff options
| -rw-r--r-- | hw/xics.c | 23 | ||||
| -rw-r--r-- | trace-events | 13 |
2 files changed, 33 insertions, 3 deletions
@@ -26,6 +26,7 @@ */ #include "hw.h" +#include "trace.h" #include "hw/spapr.h" #include "hw/xics.h" @@ -66,6 +67,8 @@ static void icp_check_ipi(struct icp_state *icp, int server) return; } + trace_xics_icp_check_ipi(server, ss->mfrr); + if (XISR(ss)) { ics_reject(icp->ics, XISR(ss)); } @@ -120,11 +123,13 @@ static void icp_set_mfrr(struct icp_state *icp, int server, uint8_t mfrr) static uint32_t icp_accept(struct icp_server_state *ss) { - uint32_t xirr; + uint32_t xirr = ss->xirr; qemu_irq_lower(ss->output); - xirr = ss->xirr; ss->xirr = ss->pending_priority << 24; + + trace_xics_icp_accept(xirr, ss->xirr); + return xirr; } @@ -134,6 +139,7 @@ static void icp_eoi(struct icp_state *icp, int server, uint32_t xirr) /* Send EOI -> ICS */ ss->xirr = (ss->xirr & ~CPPR_MASK) | (xirr & CPPR_MASK); + trace_xics_icp_eoi(server, xirr, ss->xirr); ics_eoi(icp->ics, xirr & XISR_MASK); if (!XISR(ss)) { icp_resend(icp, server); @@ -144,6 +150,8 @@ static void icp_irq(struct icp_state *icp, int server, int nr, uint8_t priority) { struct icp_server_state *ss = icp->ss + server; + trace_xics_icp_irq(server, nr, priority); + if ((priority >= CPPR(ss)) || (XISR(ss) && (ss->pending_priority <= priority))) { ics_reject(icp->ics, nr); @@ -153,6 +161,7 @@ static void icp_irq(struct icp_state *icp, int server, int nr, uint8_t priority) } ss->xirr = (ss->xirr & ~XISR_MASK) | (nr & XISR_MASK); ss->pending_priority = priority; + trace_xics_icp_raise(ss->xirr, ss->pending_priority); qemu_irq_raise(ss->output); } } @@ -217,10 +226,12 @@ static void set_irq_msi(struct ics_state *ics, int srcno, int val) { struct ics_irq_state *irq = ics->irqs + srcno; + trace_xics_set_irq_msi(srcno, srcno + ics->offset); + if (val) { if (irq->priority == 0xff) { irq->status |= XICS_STATUS_MASKED_PENDING; - /* masked pending */ ; + trace_xics_masked_pending(); } else { icp_irq(ics->icp, irq->server, srcno + ics->offset, irq->priority); } @@ -231,6 +242,7 @@ static void set_irq_lsi(struct ics_state *ics, int srcno, int val) { struct ics_irq_state *irq = ics->irqs + srcno; + trace_xics_set_irq_lsi(srcno, srcno + ics->offset); if (val) { irq->status |= XICS_STATUS_ASSERTED; } else { @@ -279,6 +291,8 @@ static void ics_write_xive(struct ics_state *ics, int nr, int server, irq->priority = priority; irq->saved_priority = saved_priority; + trace_xics_ics_write_xive(nr, srcno, server, priority); + if (irq->lsi) { write_xive_lsi(ics, srcno); } else { @@ -290,6 +304,7 @@ static void ics_reject(struct ics_state *ics, int nr) { struct ics_irq_state *irq = ics->irqs + nr - ics->offset; + trace_xics_ics_reject(nr, nr - ics->offset); irq->status |= XICS_STATUS_REJECTED; /* Irrelevant but harmless for LSI */ irq->status &= ~XICS_STATUS_SENT; /* Irrelevant but harmless for MSI */ } @@ -315,6 +330,8 @@ static void ics_eoi(struct ics_state *ics, int nr) int srcno = nr - ics->offset; struct ics_irq_state *irq = ics->irqs + srcno; + trace_xics_ics_eoi(nr); + if (irq->lsi) { irq->status &= ~XICS_STATUS_SENT; } diff --git a/trace-events b/trace-events index 6c6cbf1..6cb450a 100644 --- a/trace-events +++ b/trace-events @@ -1022,3 +1022,16 @@ spapr_pci_rtas_ibm_change_msi(unsigned func, unsigned req) "func %u, requested % spapr_pci_rtas_ibm_query_interrupt_source_number(unsigned ioa, unsigned intr) "queries for #%u, IRQ%u" spapr_pci_msi_write(uint64_t addr, uint64_t data, uint32_t dt_irq) "@%"PRIx64"<=%"PRIx64" IRQ %u" spapr_pci_lsi_set(const char *busname, int pin, uint32_t irq) "%s PIN%d IRQ %u" + +# hw/xics.c +xics_icp_check_ipi(int server, uint8_t mfrr) "CPU %d can take IPI mfrr=%#x" +xics_icp_accept(uint32_t old_xirr, uint32_t new_xirr) "icp_accept: XIRR %#"PRIx32"->%#"PRIx32 +xics_icp_eoi(int server, uint32_t xirr, uint32_t new_xirr) "icp_eoi: server %d given XIRR %#"PRIx32" new XIRR %#"PRIx32 +xics_icp_irq(int server, int nr, uint8_t priority) "cpu %d trying to deliver irq %#"PRIx32" priority %#x" +xics_icp_raise(uint32_t xirr, uint8_t pending_priority) "raising IRQ new XIRR=%#x new pending priority=%#x" +xics_set_irq_msi(int srcno, int nr) "set_irq_msi: srcno %d [irq %#x]" +xics_masked_pending(void) "set_irq_msi: masked pending" +xics_set_irq_lsi(int srcno, int nr) "set_irq_lsi: srcno %d [irq %#x]" +xics_ics_write_xive(int nr, int srcno, int server, uint8_t priority) "ics_write_xive: irq %#x [src %d] server %#x prio %#x" +xics_ics_reject(int nr, int srcno) "reject irq %#x [src %d]" +xics_ics_eoi(int nr) "ics_eoi: irq %#x" |