On Fri, Jul 16, 2021 at 2:58 PM Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx> wrote: > > add time-out cycle setting to make sure time-out interrupt irq > will happened when instruction time-out for wait and poll > > Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx> Hi, it seems that this series is based on https://patchwork.kernel.org/project/linux-mediatek/patch/1624440623-4585-4-git-send-email-yongqiang.niu@xxxxxxxxxxxx/? Please state it if it's not based on linux-next, thanks! > --- > drivers/mailbox/mtk-cmdq-mailbox.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c > index de4793e..9a76bcd 100644 > --- a/drivers/mailbox/mtk-cmdq-mailbox.c > +++ b/drivers/mailbox/mtk-cmdq-mailbox.c > @@ -35,6 +35,7 @@ > #define CMDQ_THR_END_ADDR 0x24 > #define CMDQ_THR_WAIT_TOKEN 0x30 > #define CMDQ_THR_PRIORITY 0x40 > +#define CMDQ_THR_INSTN_TIMEOUT_CYCLES 0x50 > > #define GCE_GCTL_VALUE 0x48 > > @@ -53,6 +54,15 @@ > #define CMDQ_JUMP_BY_OFFSET 0x10000000 > #define CMDQ_JUMP_BY_PA 0x10000001 > > +/* > + * instruction time-out > + * cycles to issue instruction time-out interrupt for wait and poll instructions > + * GCE axi_clock 156MHz > + * 1 cycle = 6.41ns > + * instruction time out 2^22*2*6.41ns = 53ms > + */ > +#define CMDQ_INSTN_TIMEOUT_CYCLES 22 > + > struct cmdq_thread { > struct mbox_chan *chan; > void __iomem *base; > @@ -368,6 +378,7 @@ static int cmdq_mbox_send_data(struct mbox_chan *chan, void *data) > writel((task->pa_base + pkt->cmd_buf_size) >> cmdq->shift_pa, > thread->base + CMDQ_THR_END_ADDR); > > + writel(CMDQ_INSTN_TIMEOUT_CYCLES, thread->base + CMDQ_THR_INSTN_TIMEOUT_CYCLES); > writel(thread->priority, thread->base + CMDQ_THR_PRIORITY); > writel(CMDQ_THR_IRQ_EN, thread->base + CMDQ_THR_IRQ_ENABLE); > writel(CMDQ_THR_ENABLED, thread->base + CMDQ_THR_ENABLE_TASK); > -- > 1.8.1.1.dirty >
