These changes enable the driver to work with SEP
version 3.4.5
Major change is to use non DMA access for any data
comming from a function that uses the external application
service on the SEP.
Signed-off-by: Mark Allyn <mark.a.allyn@intel.com>
---
drivers/staging/sep/sep_driver.c | 32 ++++++++++++------------------
drivers/staging/sep/sep_driver_api.h | 4 +-
drivers/staging/sep/sep_driver_config.h | 4 +++
3 files changed, 19 insertions(+), 21 deletions(-)
diff --git a/drivers/staging/sep/sep_driver.c b/drivers/staging/sep/sep_driver.c
index a1b0bfe..ee23454 100644
--- a/drivers/staging/sep/sep_driver.c
+++ b/drivers/staging/sep/sep_driver.c
@@ -29,7 +29,6 @@
* 2010.09.14 Upgrade to Medfield
*
*/
-#define DEBUG
#include <linux/init.h>
#include <linux/module.h>
#include <linux/miscdevice.h>
@@ -2177,22 +2176,6 @@ static int sep_prepare_input_output_dma_table_in_dcb(struct sep_device *sep,
dcb_table_ptr->out_vr_tail_pt = 0;
if (isapplet == true) {
- tail_size = data_in_size % block_size;
- if (tail_size) {
- if (data_in_size < tail_block_size) {
- dev_warn(&sep->pdev->dev, "data in size smaller than tail block size\n");
- error = -ENOSPC;
- goto end_function;
- }
- if (tail_block_size)
- /*
- * Case the tail size should be
- * bigger than the real block size
- */
- tail_size = tail_block_size +
- ((data_in_size -
- tail_block_size) % block_size);
- }
/* Check if there is enough data for DMA operation */
if (data_in_size < SEP_DRIVER_MIN_DATA_SIZE_PER_TABLE) {
@@ -2213,7 +2196,7 @@ static int sep_prepare_input_output_dma_table_in_dcb(struct sep_device *sep,
/* Set the output user-space address for mem2mem op */
if (app_out_address)
dcb_table_ptr->out_vr_tail_pt =
- (u32)app_out_address;
+ (aligned_u64)app_out_address;
/*
* Update both data length parameters in order to avoid
@@ -2222,6 +2205,17 @@ static int ...