Commit 412877df authored by Cédric Le Goater's avatar Cédric Le Goater Committed by Michael Ellerman
Browse files

powerpc/xive: Introduce xive_core_debugfs_create() 



and fix some compile issues when !CONFIG_DEBUG_FS.

Signed-off-by: default avatarCédric Le Goater <clg@kaod.org>
[mpe: Add empty stub to fix !CONFIG_DEBUG_FS build]
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211105102636.1016378-5-clg@kaod.org
parent 756c52c6

arch/powerpc/sysdev/xive/common.c

+15 −3
Original line number Diff line number Diff line
@@ -227,6 +227,7 @@ static void xive_esb_write(struct xive_irq_data *xd, u32 offset, u64 data) 
		out_be64(xd->eoi_mmio + offset, data);

}



#if defined(CONFIG_XMON) || defined(CONFIG_DEBUG_FS)

static void xive_irq_data_dump(struct xive_irq_data *xd, char *buffer, size_t size)

{

	u64 val = xive_esb_read(xd, XIVE_ESB_GET);
@@ -239,6 +240,7 @@ static void xive_irq_data_dump(struct xive_irq_data *xd, char *buffer, size_t si 
		 val & XIVE_ESB_VAL_Q ? 'Q' : '-',

		 xd->trig_page, xd->eoi_page);

}

#endif



#ifdef CONFIG_XMON

static notrace void xive_dump_eq(const char *name, struct xive_q *q)
@@ -1700,6 +1702,7 @@ static int __init xive_off(char *arg) 
}

__setup("xive=off", xive_off);



#ifdef CONFIG_DEBUG_FS

static void xive_debug_show_cpu(struct seq_file *m, int cpu)

{

	struct xive_cpu *xc = per_cpu(xive_cpu, cpu);
@@ -1778,10 +1781,19 @@ static int xive_core_debug_show(struct seq_file *m, void *private) 
}

DEFINE_SHOW_ATTRIBUTE(xive_core_debug);



int xive_core_debug_init(void)

static void xive_core_debugfs_create(void)

{

	if (xive_enabled())

	debugfs_create_file("xive", 0400, arch_debugfs_dir,

			    NULL, &xive_core_debug_fops);

}

#else

static inline void xive_core_debugfs_create(void) { }

#endif /* CONFIG_DEBUG_FS */



int xive_core_debug_init(void)

{

	if (xive_enabled() && IS_ENABLED(CONFIG_DEBUG_FS))

		xive_core_debugfs_create();



	return 0;

}