diff options
Diffstat (limited to 'arch/powerpc/sysdev/xive/common.c')
| -rw-r--r-- | arch/powerpc/sysdev/xive/common.c | 11 |
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 |