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| author | Cédric Le Goater <clg@kaod.org> | 2020-03-06 16:01:43 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-03-27 00:20:38 +1100 |
| commit | 930914b7d528fc6b0249bffc00564100bcf6ef75 (patch) | |
| tree | 3834a9397f3ed2e1d2ba1e91b84234fc49901fc8 /arch/powerpc/sysdev/xive/xive-internal.h | |
| parent | powerpc/xmon: Add source flags to output of XIVE interrupts (diff) | |
| download | linux-930914b7d528fc6b0249bffc00564100bcf6ef75.tar.gz linux-930914b7d528fc6b0249bffc00564100bcf6ef75.zip | |
powerpc/xive: Add a debugfs file to dump internal XIVE state
As does XMON, the debugfs file /sys/kernel/debug/powerpc/xive exposes
the XIVE internal state of the machine CPUs and interrupts. Available
on the PowerNV and sPAPR platforms.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
[mpe: Make the debugfs file 0400]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200306150143.5551-5-clg@kaod.org
Diffstat (limited to 'arch/powerpc/sysdev/xive/xive-internal.h')
| -rw-r--r-- | arch/powerpc/sysdev/xive/xive-internal.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/xive/xive-internal.h b/arch/powerpc/sysdev/xive/xive-internal.h index 382980f4de2d..b7b901da2168 100644 --- a/arch/powerpc/sysdev/xive/xive-internal.h +++ b/arch/powerpc/sysdev/xive/xive-internal.h @@ -57,12 +57,14 @@ struct xive_ops { int (*get_ipi)(unsigned int cpu, struct xive_cpu *xc); void (*put_ipi)(unsigned int cpu, struct xive_cpu *xc); #endif + int (*debug_show)(struct seq_file *m, void *private); const char *name; }; bool xive_core_init(const struct xive_ops *ops, void __iomem *area, u32 offset, u8 max_prio); __be32 *xive_queue_page_alloc(unsigned int cpu, u32 queue_shift); +int xive_core_debug_init(void); static inline u32 xive_alloc_order(u32 queue_shift) { |