From a5dd060414a6697135c0b22f5155e592cc96c455 Mon Sep 17 00:00:00 2001 From: Skylar Chang Date: Tue, 26 Jul 2016 17:17:22 -0700 Subject: [PATCH] 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: Ady Abraham Signed-off-by: Skylar Chang --- drivers/platform/msm/ipa/ipa_clients/ipa_usb.c | 6 +++--- drivers/usb/gadget/function/f_gsi.c | 8 ++++---- include/linux/ipa_usb.h | 13 +++++++++++-- 3 files changed, 18 insertions(+), 9 deletions(-) diff --git a/drivers/platform/msm/ipa/ipa_clients/ipa_usb.c b/drivers/platform/msm/ipa/ipa_clients/ipa_usb.c index d7a987335dda..11daafe43d7d 100644 --- a/drivers/platform/msm/ipa/ipa_clients/ipa_usb.c +++ b/drivers/platform/msm/ipa/ipa_clients/ipa_usb.c @@ -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 = diff --git a/drivers/usb/gadget/function/f_gsi.c b/drivers/usb/gadget/function/f_gsi.c index 6964933e5077..8a80110445e5 100644 --- a/drivers/usb/gadget/function/f_gsi.c +++ b/drivers/usb/gadget/function/f_gsi.c @@ -256,7 +256,7 @@ 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; @@ -290,7 +290,7 @@ 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; @@ -2782,7 +2782,7 @@ static ssize_t gsi_info_show(struct config_item *item, char *page) ipa_chnl_params->xfer_scratch.depcmd_low_addr); len += scnprintf(buf + len, PAGE_SIZE - 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, PAGE_SIZE - len, "%25s %10u\n", "IN Buffer Size: ", ipa_chnl_params->xfer_scratch.const_buffer_size); @@ -2816,7 +2816,7 @@ static ssize_t gsi_info_show(struct config_item *item, char *page) ipa_chnl_params->xfer_scratch.depcmd_low_addr); len += scnprintf(buf + len, PAGE_SIZE - 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, PAGE_SIZE - len, "%25s %10u\n", "OUT Buffer Size: ", ipa_chnl_params->xfer_scratch.const_buffer_size); diff --git a/include/linux/ipa_usb.h b/include/linux/ipa_usb.h index c3885c72e5ea..0fe0e36c551f 100644 --- a/include/linux/ipa_usb.h +++ b/include/linux/ipa_usb.h @@ -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; }; /**