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powerpc/xive: improve debugging macros 

Having the CPU identifier in the debug logs is helpful when tracking
issues. Also add some more logging and fix a compile issue in
xive_do_source_eoi().

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Cédric Le Goater 2017-08-30 21:46:17 +02:00 committed by Michael Ellerman
parent ac5e5a5402
commit 5f121292f0
1 changed files with 6 additions and 2 deletions
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8
arch/powerpc/sysdev/xive/common.c
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@ -40,7 +40,8 @@
#undef DEBUG_ALL #undef DEBUG_ALL
#ifdef DEBUG_ALL #ifdef DEBUG_ALL
#define DBG_VERBOSE(fmt...) pr_devel(fmt) #define DBG_VERBOSE(fmt, ...) pr_devel("cpu %d - " fmt, \
smp_processor_id(), ## __VA_ARGS__)
#else #else
#define DBG_VERBOSE(fmt...) do { } while(0) #define DBG_VERBOSE(fmt...) do { } while(0)
#endif #endif
@ -344,7 +345,7 @@ void xive_do_source_eoi(u32 hw_irq, struct xive_irq_data *xd)
xive_esb_read(xd, XIVE_ESB_LOAD_EOI); xive_esb_read(xd, XIVE_ESB_LOAD_EOI);
else { else {
eoi_val = xive_esb_read(xd, XIVE_ESB_SET_PQ_00); eoi_val = xive_esb_read(xd, XIVE_ESB_SET_PQ_00);
DBG_VERBOSE("eoi_val=%x\n", offset, eoi_val); DBG_VERBOSE("eoi_val=%x\n", eoi_val);
/* Re-trigger if needed */ /* Re-trigger if needed */
if ((eoi_val & XIVE_ESB_VAL_Q) && xd->trig_mmio) if ((eoi_val & XIVE_ESB_VAL_Q) && xd->trig_mmio)
@ -1008,6 +1009,9 @@ static void xive_ipi_eoi(struct irq_data *d)
{ {
struct xive_cpu *xc = __this_cpu_read(xive_cpu); struct xive_cpu *xc = __this_cpu_read(xive_cpu);
DBG_VERBOSE("IPI eoi: irq=%d [0x%lx] (HW IRQ 0x%x) pending=%02x\n",
d->irq, irqd_to_hwirq(d), xc->hw_ipi, xc->pending_prio);
/* Handle possible race with unplug and drop stale IPIs */ /* Handle possible race with unplug and drop stale IPIs */
if (!xc) if (!xc)
return; return;