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Diffstat (limited to 'arch/powerpc/sysdev/xive/common.c')
-rw-r--r--arch/powerpc/sysdev/xive/common.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c
index 975bdbd5fa51..9ac9626c0fa6 100644
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@@ -203,6 +203,15 @@ static notrace u8 xive_esb_read(struct xive_irq_data *xd, u32 offset)
return (u8)val;
}
+static void xive_esb_write(struct xive_irq_data *xd, u32 offset, u64 data)
+{
+ /* Handle HW errata */
+ if (xd->flags & XIVE_IRQ_FLAG_SHIFT_BUG)
+ offset |= offset << 4;
+
+ out_be64(xd->eoi_mmio + offset, data);
+}
+
#ifdef CONFIG_XMON
static notrace void xive_dump_eq(const char *name, struct xive_q *q)
{
@@ -297,7 +306,7 @@ void xive_do_source_eoi(u32 hw_irq, struct xive_irq_data *xd)
{
/* If the XIVE supports the new "store EOI facility, use it */
if (xd->flags & XIVE_IRQ_FLAG_STORE_EOI)
- out_be64(xd->eoi_mmio + XIVE_ESB_STORE_EOI, 0);
+ xive_esb_write(xd, XIVE_ESB_STORE_EOI, 0);
else if (hw_irq && xd->flags & XIVE_IRQ_FLAG_EOI_FW) {
/*
* The FW told us to call it. This happens for some