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| author | Cédric Le Goater <clg@kaod.org> | 2017-08-30 21:46:17 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-09-02 21:02:38 +1000 |
| commit | 5f121292f0a0873fa2cd3a0292fb4860a8953f38 (patch) | |
| tree | 392de73ab431f90c672ed633c0fb87d3143a77ec /arch/powerpc | |
| parent | ac5e5a5402d64acd48af3287718e24ff8ba9fa21 (diff) | |
| download | linux-5f121292f0a0873fa2cd3a0292fb4860a8953f38.tar.gz linux-5f121292f0a0873fa2cd3a0292fb4860a8953f38.tar.bz2 linux-5f121292f0a0873fa2cd3a0292fb4860a8953f38.zip | |
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>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/sysdev/xive/common.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c index 7014ca6da4f6..f387318678b9 100644 --- a/arch/powerpc/sysdev/xive/common.c +++ b/arch/powerpc/sysdev/xive/common.c @@ -40,7 +40,8 @@ #undef 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 #define DBG_VERBOSE(fmt...) do { } while(0) #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); else { 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 */ 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); + 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 */ if (!xc) return; |