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Commit 097febe6 authored by Skylar Chang's avatar Skylar Chang Committed by Gerrit - the friendly Code Review server
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msm: ipa3: changes to IPA USB APIs to support SMMU 



Add support to IPA USB APIs for SMMU.

CRs-Fixed: 1046497
Change-Id: Ifca675f308b59913743baf2e59dc3ed515a5b974
Acked-by: default avatarAdy Abraham <adya@qti.qualcomm.com>
Signed-off-by: default avatarSkylar Chang <chiaweic@codeaurora.org>
parent 1cb34120

drivers/platform/msm/ipa/ipa_clients/ipa_usb.c

+3 −3
Original line number Diff line number Diff line
@@ -1061,8 +1061,8 @@ static bool ipa3_usb_check_chan_params(struct ipa_usb_xdci_chan_params *params) 
	IPA_USB_DBG_LOW("xfer_ring_len = %d\n", params->xfer_ring_len);

	IPA_USB_DBG_LOW("xfer_ring_base_addr = %llx\n",

		params->xfer_ring_base_addr);

	IPA_USB_DBG_LOW("last_trb_addr = %x\n",

		params->xfer_scratch.last_trb_addr);

	IPA_USB_DBG_LOW("last_trb_addr_iova = %x\n",

		params->xfer_scratch.last_trb_addr_iova);

	IPA_USB_DBG_LOW("const_buffer_size = %d\n",

		params->xfer_scratch.const_buffer_size);

	IPA_USB_DBG_LOW("depcmd_low_addr = %x\n",
@@ -1227,7 +1227,7 @@ static int ipa3_usb_request_xdci_channel( 
	chan_params.chan_params.err_cb = ipa3_usb_gsi_chan_err_cb;

	chan_params.chan_params.chan_user_data = NULL;

	chan_params.chan_scratch.xdci.last_trb_addr =

		params->xfer_scratch.last_trb_addr;

		params->xfer_scratch.last_trb_addr_iova;

	/* xferrscidx will be updated later */

	chan_params.chan_scratch.xdci.xferrscidx = 0;

	chan_params.chan_scratch.xdci.const_buffer_size =

drivers/usb/gadget/function/f_gsi.c

+4 −4
Original line number Diff line number Diff line
@@ -263,7 +263,7 @@ static ssize_t usb_gsi_debugfs_read(struct file *file, 
			ipa_chnl_params->xfer_scratch.depcmd_low_addr);

			len += scnprintf(buf + len, buf_len - len,

			"%25s %10x\n", "IN LastTRB Addr Off: ",

				ipa_chnl_params->xfer_scratch.last_trb_addr);

			ipa_chnl_params->xfer_scratch.last_trb_addr_iova);

			len += scnprintf(buf + len, buf_len - len,

			"%25s %10u\n", "IN Buffer Size: ",

			ipa_chnl_params->xfer_scratch.const_buffer_size);
@@ -297,7 +297,7 @@ static ssize_t usb_gsi_debugfs_read(struct file *file, 
				ipa_chnl_params->xfer_scratch.depcmd_low_addr);

			len += scnprintf(buf + len, buf_len - len,

			"%25s %10x\n", "OUT LastTRB Addr Off: ",

				ipa_chnl_params->xfer_scratch.last_trb_addr);

			ipa_chnl_params->xfer_scratch.last_trb_addr_iova);

			len += scnprintf(buf + len, buf_len - len,

			"%25s %10u\n", "OUT Buffer Size: ",

			ipa_chnl_params->xfer_scratch.const_buffer_size);
@@ -453,7 +453,7 @@ static int ipa_connect_channels(struct gsi_data_port *d_port) 
	in_params->dir = GSI_CHAN_DIR_FROM_GSI;

	in_params->xfer_ring_len = gsi_channel_info.xfer_ring_len;

	in_params->xfer_ring_base_addr = gsi_channel_info.xfer_ring_base_addr;

	in_params->xfer_scratch.last_trb_addr =

	in_params->xfer_scratch.last_trb_addr_iova =

		d_port->in_last_trb_addr = gsi_channel_info.last_trb_addr;

	in_params->xfer_scratch.const_buffer_size =

		gsi_channel_info.const_buffer_size;
@@ -487,7 +487,7 @@ static int ipa_connect_channels(struct gsi_data_port *d_port) 
			gsi_channel_info.xfer_ring_len;

		out_params->xfer_ring_base_addr =

			gsi_channel_info.xfer_ring_base_addr;

		out_params->xfer_scratch.last_trb_addr =

		out_params->xfer_scratch.last_trb_addr_iova =

			gsi_channel_info.last_trb_addr;

		out_params->xfer_scratch.const_buffer_size =

			gsi_channel_info.const_buffer_size;

include/linux/ipa_usb.h

+11 −2
Original line number Diff line number Diff line
@@ -94,7 +94,7 @@ struct ipa_usb_xdci_connect_params { 
 * ipa_usb_xdci_chan_scratch - xDCI protocol SW config area of

 * channel scratch

 *

 * @last_trb_addr:       Address (LSB - based on alignment restrictions) of

 * @last_trb_addr_iova:  Address (iova LSB - based on alignment restrictions) of

 *                       last TRB in queue. Used to identify roll over case

 * @const_buffer_size:   TRB buffer size in KB (similar to IPA aggregation

 *                       configuration). Must be aligned to max USB Packet Size.
@@ -103,7 +103,7 @@ struct ipa_usb_xdci_connect_params { 
 * @depcmd_hi_addr:      Used to generate "Update Transfer" command.

 */

struct ipa_usb_xdci_chan_scratch {

	u16 last_trb_addr;

	u16 last_trb_addr_iova;

	u8 const_buffer_size;

	u32 depcmd_low_addr;

	u8 depcmd_hi_addr;
@@ -124,6 +124,11 @@ struct ipa_usb_xdci_chan_scratch { 
 * @xfer_ring_base_addr: physical base address of transfer ring. Address must be

 *                       aligned to xfer_ring_len rounded to power of two

 * @xfer_scratch:        parameters for xDCI channel scratch

 * @xfer_ring_base_addr_iova: IO virtual address mapped to xfer_ring_base_addr

 * @data_buff_base_len:  length of data buffer allocated by USB driver

 * @data_buff_base_addr: physical base address for the data buffer (where TRBs

 *                       points)

 * @data_buff_base_addr_iova:  IO virtual address mapped to data_buff_base_addr

 *

 */

struct ipa_usb_xdci_chan_params {
@@ -140,6 +145,10 @@ struct ipa_usb_xdci_chan_params { 
	u16 xfer_ring_len;

	u64 xfer_ring_base_addr;

	struct ipa_usb_xdci_chan_scratch xfer_scratch;

	u64 xfer_ring_base_addr_iova;

	u32 data_buff_base_len;

	u64 data_buff_base_addr;

	u64 data_buff_base_addr_iova;

};



/**