Merge "msm: ipa: Fix the missing page recycling cleanup on ssr" (89aa84aa) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/platform/msm/ipa/ipa_v3/ipa_dp.c

+24 −0

Original line number	Diff line number	Diff line
		@@ -2424,6 +2424,25 @@ static void free_rx_pkt(void chan_user_data, void xfer_user_data)
		kmem_cache_free(ipa3_ctx->rx_pkt_wrapper_cache, rx_pkt);
		}

		/**
		* free_rx_page() - function to free the page and rx_pkt_wrapper
		*
		* @chan_user_data: ipa_sys_context used for skb size and skb_free func
		* @xfer_uder_data: rx_pkt wrapper to be freed
		*
		*/
		static void free_rx_page(void chan_user_data, void xfer_user_data)
		{
		struct ipa3_rx_pkt_wrapper rx_pkt = (struct ipa3_rx_pkt_wrapper )
		xfer_user_data;

		dma_unmap_page(ipa3_ctx->pdev, rx_pkt->page_data.dma_addr,
		rx_pkt->len, DMA_FROM_DEVICE);
		__free_pages(rx_pkt->page_data.page,
		IPA_WAN_PAGE_ORDER);
		kmem_cache_free(ipa3_ctx->rx_pkt_wrapper_cache, rx_pkt);
		}

		/**
		* ipa3_cleanup_rx() - release RX queue resources
		*
		@@ -4451,6 +4470,11 @@ static int ipa_gsi_setup_transfer_ring(struct ipa3_ep_context *ep,
		if (IPA_CLIENT_IS_CONS(ep->client))
		gsi_channel_props.cleanup_cb = free_rx_pkt;

		/* overwrite the cleanup_cb for page recycling */
		if (ipa3_ctx->ipa_wan_skb_page &&
		(IPA_CLIENT_IS_WAN_CONS(ep->client)))
		gsi_channel_props.cleanup_cb = free_rx_page;

		result = gsi_alloc_channel(&gsi_channel_props, ipa3_ctx->gsi_dev_hdl,
		&ep->gsi_chan_hdl);
		if (result != GSI_STATUS_SUCCESS) {