iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

crypto: ccree - remove struct buff_mgr_handle

Browse Source 
The buff_mgr_handle structure contains only a single member, and only
one instance exists.  Simplify the code and reduce memory consumption by
moving this member to struct cc_drvdata.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Geert Uytterhoeven 2020-02-11 19:19:14 +01:00 committed by Herbert Xu
parent ec8f3a5519
commit 040187a0fa
2 changed files with 9 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
drivers/crypto/ccree/cc_buffer_mgr.c
View File

@ -19,10 +19,6 @@ enum dma_buffer_type {
DMA_BUFF_TYPE = 2,
};
struct buff_mgr_handle {
struct dma_pool *mlli_buffs_pool;
};
union buffer_array_entry {
struct scatterlist *sgl;
dma_addr_t buffer_dma;
@ -402,7 +398,6 @@ int cc_map_cipher_request(struct cc_drvdata *drvdata, void *ctx,
{
struct cipher_req_ctx *req_ctx = (struct cipher_req_ctx *)ctx;
struct mlli_params *mlli_params = &req_ctx->mlli_params;
struct buff_mgr_handle *buff_mgr = drvdata->buff_mgr_handle;
struct device *dev = drvdata_to_dev(drvdata);
struct buffer_array sg_data;
u32 dummy = 0;
@ -466,7 +461,7 @@ int cc_map_cipher_request(struct cc_drvdata *drvdata, void *ctx,
}
if (req_ctx->dma_buf_type == CC_DMA_BUF_MLLI) {
mlli_params->curr_pool = buff_mgr->mlli_buffs_pool;
mlli_params->curr_pool = drvdata->mlli_buffs_pool;
rc = cc_generate_mlli(dev, &sg_data, mlli_params, flags);
if (rc)
goto cipher_exit;
@ -1007,7 +1002,6 @@ int cc_map_aead_request(struct cc_drvdata *drvdata, struct aead_request *req)
struct device *dev = drvdata_to_dev(drvdata);
struct buffer_array sg_data;
unsigned int authsize = areq_ctx->req_authsize;
struct buff_mgr_handle *buff_mgr = drvdata->buff_mgr_handle;
int rc = 0;
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
bool is_gcm4543 = areq_ctx->is_gcm4543;
@ -1180,7 +1174,7 @@ int cc_map_aead_request(struct cc_drvdata *drvdata, struct aead_request *req)
*/
if (areq_ctx->assoc_buff_type == CC_DMA_BUF_MLLI ||
areq_ctx->data_buff_type == CC_DMA_BUF_MLLI) {
mlli_params->curr_pool = buff_mgr->mlli_buffs_pool;
mlli_params->curr_pool = drvdata->mlli_buffs_pool;
rc = cc_generate_mlli(dev, &sg_data, mlli_params, flags);
if (rc)
goto aead_map_failure;
@ -1208,7 +1202,6 @@ int cc_map_hash_request_final(struct cc_drvdata *drvdata, void *ctx,
u32 *curr_buff_cnt = cc_hash_buf_cnt(areq_ctx);
struct mlli_params *mlli_params = &areq_ctx->mlli_params;
struct buffer_array sg_data;
struct buff_mgr_handle *buff_mgr = drvdata->buff_mgr_handle;
int rc = 0;
u32 dummy = 0;
u32 mapped_nents = 0;
@ -1255,7 +1248,7 @@ int cc_map_hash_request_final(struct cc_drvdata *drvdata, void *ctx,
/*build mlli */
if (areq_ctx->data_dma_buf_type == CC_DMA_BUF_MLLI) {
mlli_params->curr_pool = buff_mgr->mlli_buffs_pool;
mlli_params->curr_pool = drvdata->mlli_buffs_pool;
/* add the src data to the sg_data */
cc_add_sg_entry(dev, &sg_data, areq_ctx->in_nents, src, nbytes,
0, true, &areq_ctx->mlli_nents);
@ -1293,7 +1286,6 @@ int cc_map_hash_request_update(struct cc_drvdata *drvdata, void *ctx,
unsigned int update_data_len;
u32 total_in_len = nbytes + *curr_buff_cnt;
struct buffer_array sg_data;
struct buff_mgr_handle *buff_mgr = drvdata->buff_mgr_handle;
unsigned int swap_index = 0;
int rc = 0;
u32 dummy = 0;
@ -1368,7 +1360,7 @@ int cc_map_hash_request_update(struct cc_drvdata *drvdata, void *ctx,
}
if (areq_ctx->data_dma_buf_type == CC_DMA_BUF_MLLI) {
mlli_params->curr_pool = buff_mgr->mlli_buffs_pool;
mlli_params->curr_pool = drvdata->mlli_buffs_pool;
/* add the src data to the sg_data */
cc_add_sg_entry(dev, &sg_data, areq_ctx->in_nents, src,
(update_data_len - *curr_buff_cnt), 0, true,
@ -1435,39 +1427,22 @@ void cc_unmap_hash_request(struct device *dev, void *ctx,
int cc_buffer_mgr_init(struct cc_drvdata *drvdata)
{
struct buff_mgr_handle *buff_mgr_handle;
struct device *dev = drvdata_to_dev(drvdata);
buff_mgr_handle = kmalloc(sizeof(*buff_mgr_handle), GFP_KERNEL);
if (!buff_mgr_handle)
return -ENOMEM;
drvdata->buff_mgr_handle = buff_mgr_handle;
buff_mgr_handle->mlli_buffs_pool =
drvdata->mlli_buffs_pool =
dma_pool_create("dx_single_mlli_tables", dev,
MAX_NUM_OF_TOTAL_MLLI_ENTRIES *
LLI_ENTRY_BYTE_SIZE,
MLLI_TABLE_MIN_ALIGNMENT, 0);
if (!buff_mgr_handle->mlli_buffs_pool)
goto error;
if (!drvdata->mlli_buffs_pool)
return -ENOMEM;
return 0;
error:
cc_buffer_mgr_fini(drvdata);
return -ENOMEM;
}
int cc_buffer_mgr_fini(struct cc_drvdata *drvdata)
{
struct buff_mgr_handle *buff_mgr_handle = drvdata->buff_mgr_handle;
if (buff_mgr_handle) {
dma_pool_destroy(buff_mgr_handle->mlli_buffs_pool);
kfree(drvdata->buff_mgr_handle);
drvdata->buff_mgr_handle = NULL;
}
dma_pool_destroy(drvdata->mlli_buffs_pool);
return 0;
}

2
drivers/crypto/ccree/cc_driver.h
View File

@ -140,7 +140,7 @@ struct cc_drvdata {
struct completion hw_queue_avail; /* wait for HW queue availability */
struct platform_device *plat_dev;
u32 mlli_sram_addr;
void *buff_mgr_handle;
struct dma_pool *mlli_buffs_pool;
void *cipher_handle;
void *hash_handle;
void *aead_handle;