Merge "msm: ipa: flush the desc before feeding" (bd4ddc85) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/platform/msm/ipa/ipa_v2/ipa_dp.c

+26 −0

Original line number	Diff line number	Diff line
		@@ -293,6 +293,8 @@ int ipa_send_one(struct ipa_sys_context sys, struct ipa_desc desc,
		dma_addr_t dma_address;
		u16 len;
		u32 mem_flag = GFP_ATOMIC;
		struct sps_iovec iov;
		int ret;

		if (unlikely(!in_atomic))
		mem_flag = GFP_KERNEL;
		@@ -345,6 +347,17 @@ int ipa_send_one(struct ipa_sys_context sys, struct ipa_desc desc,

		spin_lock_bh(&sys->spinlock);
		list_add_tail(&tx_pkt->link, &sys->head_desc_list);
		if (sys->policy == IPA_POLICY_NOINTR_MODE) {
		do {
		ret = sps_get_iovec(sys->ep->ep_hdl, &iov);
		if (ret) {
		IPADBG("sps_get_iovec failed %d\n", ret);
		break;
		}
		if ((iov.addr == 0x0) && (iov.size == 0x0))
		break;
		} while (1);
		}
		result = sps_transfer_one(sys->ep->ep_hdl, dma_address, len, tx_pkt,
		sps_flags);
		if (result) {
		@@ -400,6 +413,8 @@ int ipa_send(struct ipa_sys_context sys, u32 num_desc, struct ipa_desc desc,
		int fail_dma_wrap = 0;
		uint size = num_desc * sizeof(struct sps_iovec);
		u32 mem_flag = GFP_ATOMIC;
		struct sps_iovec iov;
		int ret;

		if (unlikely(!in_atomic))
		mem_flag = GFP_KERNEL;
		@@ -510,6 +525,17 @@ int ipa_send(struct ipa_sys_context sys, u32 num_desc, struct ipa_desc desc,
		}
		}

		if (sys->policy == IPA_POLICY_NOINTR_MODE) {
		do {
		ret = sps_get_iovec(sys->ep->ep_hdl, &iov);
		if (ret) {
		IPADBG("sps_get_iovec failed %d\n", ret);
		break;
		}
		if ((iov.addr == 0x0) && (iov.size == 0x0))
		break;
		} while (1);
		}
		result = sps_transfer(sys->ep->ep_hdl, &transfer);
		if (result) {
		IPAERR("sps_transfer failed rc=%d\n", result);