Merge "msm: ipa3: Adding chnages to update event RP from DDR" (64b8aeed) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/platform/msm/gsi/gsi.c

+6 −2

Original line number	Diff line number	Diff line
		@@ -3652,6 +3652,7 @@ EXPORT_SYMBOL(gsi_query_channel_info);
		int gsi_is_channel_empty(unsigned long chan_hdl, bool *is_empty)
		{
		struct gsi_chan_ctx *ctx;
		struct gsi_evt_ctx *ev_ctx;
		spinlock_t *slock;
		unsigned long flags;
		uint64_t rp;
		@@ -3687,8 +3688,11 @@ int gsi_is_channel_empty(unsigned long chan_hdl, bool *is_empty)
		spin_lock_irqsave(slock, flags);

		if (ctx->props.dir == GSI_CHAN_DIR_FROM_GSI && ctx->evtr) {
		rp = gsi_readl(gsi_ctx->base +
		GSI_EE_n_EV_CH_k_CNTXT_4_OFFS(ctx->evtr->id, ee));
		ev_ctx = &gsi_ctx->evtr[ctx->evtr->id];
		/* Read the event ring rp from DDR to avoid mismatch */
		rp = ev_ctx->props.gsi_read_event_ring_rp(&ev_ctx->props,
		ev_ctx->id, ee);

		rp \|= ctx->evtr->ring.rp & 0xFFFFFFFF00000000;
		ctx->evtr->ring.rp = rp;