evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

msm: ipa3: changes to IPA USB APIs to support SMMU

Browse source 
Add support to IPA USB APIs for SMMU.

CRs-Fixed: 1046497
Change-Id: Ifca675f308b59913743baf2e59dc3ed515a5b974
Acked-by: Ady Abraham <adya@qti.qualcomm.com>
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
This commit is contained in:
Skylar Chang 2016-07-26 17:17:22 -07:00
parent 4ba4c5041b
commit a5dd060414
3 changed files with 18 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/platform/msm/ipa/ipa_clients/ipa_usb.c
View file

@ -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 =

8
drivers/usb/gadget/function/f_gsi.c
View file

@ -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);

13
include/linux/ipa_usb.h
View file

@ -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;
};
/**