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Commit 609f3a84 authored by Vipin Deep Kaur's avatar Vipin Deep Kaur
Browse files

dmaengine: gpi: Free gpi desc after RX transfer is done 



Free the memory allocated to rx gpi_desc after the transfer
is completed.

Change-Id: I6a0f70a7398650b16b716aeba987f9528584f163
Signed-off-by: default avatarVipin Deep Kaur <vkaur@codeaurora.org>
parent 090c2c57

drivers/dma/qcom/gpi.c

+18 −4
Original line number Diff line number Diff line
@@ -1461,6 +1461,7 @@ static void gpi_process_imed_data_event(struct gpii_chan *gpii_chan, 
		(ch_ring->el_size * imed_event->tre_index);

	struct msm_gpi_dma_async_tx_cb_param *tx_cb_param;

	unsigned long flags;

	u32 chid;



	/*

	 * If channel not active don't process event but let
@@ -1513,8 +1514,13 @@ static void gpi_process_imed_data_event(struct gpii_chan *gpii_chan, 
	/* make sure rp updates are immediately visible to all cores */

	smp_wmb();



	if (imed_event->code == MSM_GPI_TCE_EOT && gpii->ieob_set)

	chid = imed_event->chid;

	if (imed_event->code == MSM_GPI_TCE_EOT && gpii->ieob_set) {

		if (chid == GPI_RX_CHAN)

			goto gpi_free_desc;

		else

			return;

	}



	tx_cb_param = vd->tx.callback_param;

	if (vd->tx.callback && tx_cb_param) {
@@ -1532,6 +1538,7 @@ static void gpi_process_imed_data_event(struct gpii_chan *gpii_chan, 
		vd->tx.callback(tx_cb_param);

	}



gpi_free_desc:

	spin_lock_irqsave(&gpii_chan->vc.lock, flags);

	list_del(&vd->node);

	spin_unlock_irqrestore(&gpii_chan->vc.lock, flags);
@@ -1550,6 +1557,7 @@ static void gpi_process_xfer_compl_event(struct gpii_chan *gpii_chan, 
	struct msm_gpi_dma_async_tx_cb_param *tx_cb_param;

	struct gpi_desc *gpi_desc;

	unsigned long flags;

	u32 chid;



	/* only process events on active channel */

	if (unlikely(gpii_chan->pm_state != ACTIVE_STATE)) {
@@ -1594,8 +1602,13 @@ static void gpi_process_xfer_compl_event(struct gpii_chan *gpii_chan, 
	/* update must be visible to other cores */

	smp_wmb();



	if (compl_event->code == MSM_GPI_TCE_EOT && gpii->ieob_set)

	chid = compl_event->chid;

	if (compl_event->code == MSM_GPI_TCE_EOT && gpii->ieob_set) {

		if (chid == GPI_RX_CHAN)

			goto gpi_free_desc;

		else

			return;

	}



	tx_cb_param = vd->tx.callback_param;

	if (vd->tx.callback && tx_cb_param) {
@@ -1609,6 +1622,7 @@ static void gpi_process_xfer_compl_event(struct gpii_chan *gpii_chan, 
		vd->tx.callback(tx_cb_param);

	}



gpi_free_desc:

	spin_lock_irqsave(&gpii_chan->vc.lock, flags);

	list_del(&vd->node);

	spin_unlock_irqrestore(&gpii_chan->vc.lock, flags);