diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:39:57 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:39:57 +0000 |
commit | dc50eab76b709d68175a358d6e23a5a3890764d3 (patch) | |
tree | c754d0390db060af0213ff994f0ac310e4cfd6e9 /drivers/crypto/hisilicon/zip/zip_crypto.c | |
parent | Adding debian version 6.6.15-2. (diff) | |
download | linux-dc50eab76b709d68175a358d6e23a5a3890764d3.tar.xz linux-dc50eab76b709d68175a358d6e23a5a3890764d3.zip |
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/crypto/hisilicon/zip/zip_crypto.c')
-rw-r--r-- | drivers/crypto/hisilicon/zip/zip_crypto.c | 290 |
1 files changed, 50 insertions, 240 deletions
diff --git a/drivers/crypto/hisilicon/zip/zip_crypto.c b/drivers/crypto/hisilicon/zip/zip_crypto.c index 6608971d10..c650c741a1 100644 --- a/drivers/crypto/hisilicon/zip/zip_crypto.c +++ b/drivers/crypto/hisilicon/zip/zip_crypto.c @@ -16,36 +16,17 @@ #define HZIP_OUT_SGE_DATA_OFFSET_M GENMASK(23, 0) /* hisi_zip_sqe dw9 */ #define HZIP_REQ_TYPE_M GENMASK(7, 0) -#define HZIP_ALG_TYPE_ZLIB 0x02 -#define HZIP_ALG_TYPE_GZIP 0x03 +#define HZIP_ALG_TYPE_DEFLATE 0x01 #define HZIP_BUF_TYPE_M GENMASK(11, 8) -#define HZIP_PBUFFER 0x0 #define HZIP_SGL 0x1 -#define HZIP_ZLIB_HEAD_SIZE 2 -#define HZIP_GZIP_HEAD_SIZE 10 - -#define GZIP_HEAD_FHCRC_BIT BIT(1) -#define GZIP_HEAD_FEXTRA_BIT BIT(2) -#define GZIP_HEAD_FNAME_BIT BIT(3) -#define GZIP_HEAD_FCOMMENT_BIT BIT(4) - -#define GZIP_HEAD_FLG_SHIFT 3 -#define GZIP_HEAD_FEXTRA_SHIFT 10 -#define GZIP_HEAD_FEXTRA_XLEN 2UL -#define GZIP_HEAD_FHCRC_SIZE 2 - -#define HZIP_GZIP_HEAD_BUF 256 #define HZIP_ALG_PRIORITY 300 #define HZIP_SGL_SGE_NR 10 -#define HZIP_ALG_ZLIB GENMASK(1, 0) -#define HZIP_ALG_GZIP GENMASK(3, 2) +#define HZIP_ALG_DEFLATE GENMASK(5, 4) -static const u8 zlib_head[HZIP_ZLIB_HEAD_SIZE] = {0x78, 0x9c}; -static const u8 gzip_head[HZIP_GZIP_HEAD_SIZE] = { - 0x1f, 0x8b, 0x08, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x03 -}; +static DEFINE_MUTEX(zip_algs_lock); +static unsigned int zip_available_devs; enum hisi_zip_alg_type { HZIP_ALG_TYPE_COMP = 0, @@ -59,21 +40,10 @@ enum { }; #define COMP_NAME_TO_TYPE(alg_name) \ - (!strcmp((alg_name), "zlib-deflate") ? HZIP_ALG_TYPE_ZLIB : \ - !strcmp((alg_name), "gzip") ? HZIP_ALG_TYPE_GZIP : 0) \ - -#define TO_HEAD_SIZE(req_type) \ - (((req_type) == HZIP_ALG_TYPE_ZLIB) ? sizeof(zlib_head) : \ - ((req_type) == HZIP_ALG_TYPE_GZIP) ? sizeof(gzip_head) : 0) \ - -#define TO_HEAD(req_type) \ - (((req_type) == HZIP_ALG_TYPE_ZLIB) ? zlib_head : \ - ((req_type) == HZIP_ALG_TYPE_GZIP) ? gzip_head : NULL) \ + (!strcmp((alg_name), "deflate") ? HZIP_ALG_TYPE_DEFLATE : 0) struct hisi_zip_req { struct acomp_req *req; - u32 sskip; - u32 dskip; struct hisi_acc_hw_sgl *hw_src; struct hisi_acc_hw_sgl *hw_dst; dma_addr_t dma_src; @@ -138,85 +108,8 @@ static u16 sgl_sge_nr = HZIP_SGL_SGE_NR; module_param_cb(sgl_sge_nr, &sgl_sge_nr_ops, &sgl_sge_nr, 0444); MODULE_PARM_DESC(sgl_sge_nr, "Number of sge in sgl(1-255)"); -static u32 get_extra_field_size(const u8 *start) -{ - return *((u16 *)start) + GZIP_HEAD_FEXTRA_XLEN; -} - -static u32 get_name_field_size(const u8 *start) -{ - return strlen(start) + 1; -} - -static u32 get_comment_field_size(const u8 *start) -{ - return strlen(start) + 1; -} - -static u32 __get_gzip_head_size(const u8 *src) -{ - u8 head_flg = *(src + GZIP_HEAD_FLG_SHIFT); - u32 size = GZIP_HEAD_FEXTRA_SHIFT; - - if (head_flg & GZIP_HEAD_FEXTRA_BIT) - size += get_extra_field_size(src + size); - if (head_flg & GZIP_HEAD_FNAME_BIT) - size += get_name_field_size(src + size); - if (head_flg & GZIP_HEAD_FCOMMENT_BIT) - size += get_comment_field_size(src + size); - if (head_flg & GZIP_HEAD_FHCRC_BIT) - size += GZIP_HEAD_FHCRC_SIZE; - - return size; -} - -static u32 __maybe_unused get_gzip_head_size(struct scatterlist *sgl) -{ - char buf[HZIP_GZIP_HEAD_BUF]; - - sg_copy_to_buffer(sgl, sg_nents(sgl), buf, sizeof(buf)); - - return __get_gzip_head_size(buf); -} - -static int add_comp_head(struct scatterlist *dst, u8 req_type) -{ - int head_size = TO_HEAD_SIZE(req_type); - const u8 *head = TO_HEAD(req_type); - int ret; - - ret = sg_copy_from_buffer(dst, sg_nents(dst), head, head_size); - if (unlikely(ret != head_size)) { - pr_err("the head size of buffer is wrong (%d)!\n", ret); - return -ENOMEM; - } - - return head_size; -} - -static int get_comp_head_size(struct acomp_req *acomp_req, u8 req_type) -{ - if (unlikely(!acomp_req->src || !acomp_req->slen)) - return -EINVAL; - - if (unlikely(req_type == HZIP_ALG_TYPE_GZIP && - acomp_req->slen < GZIP_HEAD_FEXTRA_SHIFT)) - return -EINVAL; - - switch (req_type) { - case HZIP_ALG_TYPE_ZLIB: - return TO_HEAD_SIZE(HZIP_ALG_TYPE_ZLIB); - case HZIP_ALG_TYPE_GZIP: - return TO_HEAD_SIZE(HZIP_ALG_TYPE_GZIP); - default: - pr_err("request type does not support!\n"); - return -EINVAL; - } -} - -static struct hisi_zip_req *hisi_zip_create_req(struct acomp_req *req, - struct hisi_zip_qp_ctx *qp_ctx, - size_t head_size, bool is_comp) +static struct hisi_zip_req *hisi_zip_create_req(struct hisi_zip_qp_ctx *qp_ctx, + struct acomp_req *req) { struct hisi_zip_req_q *req_q = &qp_ctx->req_q; struct hisi_zip_req *q = req_q->q; @@ -239,14 +132,6 @@ static struct hisi_zip_req *hisi_zip_create_req(struct acomp_req *req, req_cache->req_id = req_id; req_cache->req = req; - if (is_comp) { - req_cache->sskip = 0; - req_cache->dskip = head_size; - } else { - req_cache->sskip = head_size; - req_cache->dskip = 0; - } - return req_cache; } @@ -272,10 +157,8 @@ static void hisi_zip_fill_buf_size(struct hisi_zip_sqe *sqe, struct hisi_zip_req { struct acomp_req *a_req = req->req; - sqe->input_data_length = a_req->slen - req->sskip; - sqe->dest_avail_out = a_req->dlen - req->dskip; - sqe->dw7 = FIELD_PREP(HZIP_IN_SGE_DATA_OFFSET_M, req->sskip); - sqe->dw8 = FIELD_PREP(HZIP_OUT_SGE_DATA_OFFSET_M, req->dskip); + sqe->input_data_length = a_req->slen; + sqe->dest_avail_out = a_req->dlen; } static void hisi_zip_fill_buf_type(struct hisi_zip_sqe *sqe, u8 buf_type) @@ -296,12 +179,7 @@ static void hisi_zip_fill_req_type(struct hisi_zip_sqe *sqe, u8 req_type) sqe->dw9 = val; } -static void hisi_zip_fill_tag_v1(struct hisi_zip_sqe *sqe, struct hisi_zip_req *req) -{ - sqe->dw13 = req->req_id; -} - -static void hisi_zip_fill_tag_v2(struct hisi_zip_sqe *sqe, struct hisi_zip_req *req) +static void hisi_zip_fill_tag(struct hisi_zip_sqe *sqe, struct hisi_zip_req *req) { sqe->dw26 = req->req_id; } @@ -330,8 +208,8 @@ static void hisi_zip_fill_sqe(struct hisi_zip_ctx *ctx, struct hisi_zip_sqe *sqe ops->fill_sqe_type(sqe, ops->sqe_type); } -static int hisi_zip_do_work(struct hisi_zip_req *req, - struct hisi_zip_qp_ctx *qp_ctx) +static int hisi_zip_do_work(struct hisi_zip_qp_ctx *qp_ctx, + struct hisi_zip_req *req) { struct hisi_acc_sgl_pool *pool = qp_ctx->sgl_pool; struct hisi_zip_dfx *dfx = &qp_ctx->zip_dev->dfx; @@ -383,12 +261,7 @@ err_unmap_input: return ret; } -static u32 hisi_zip_get_tag_v1(struct hisi_zip_sqe *sqe) -{ - return sqe->dw13; -} - -static u32 hisi_zip_get_tag_v2(struct hisi_zip_sqe *sqe) +static u32 hisi_zip_get_tag(struct hisi_zip_sqe *sqe) { return sqe->dw26; } @@ -414,8 +287,8 @@ static void hisi_zip_acomp_cb(struct hisi_qp *qp, void *data) u32 tag = ops->get_tag(sqe); struct hisi_zip_req *req = req_q->q + tag; struct acomp_req *acomp_req = req->req; - u32 status, dlen, head_size; int err = 0; + u32 status; atomic64_inc(&dfx->recv_cnt); status = ops->get_status(sqe); @@ -427,13 +300,10 @@ static void hisi_zip_acomp_cb(struct hisi_qp *qp, void *data) err = -EIO; } - dlen = ops->get_dstlen(sqe); - hisi_acc_sg_buf_unmap(dev, acomp_req->src, req->hw_src); hisi_acc_sg_buf_unmap(dev, acomp_req->dst, req->hw_dst); - head_size = (qp->alg_type == 0) ? TO_HEAD_SIZE(qp->req_type) : 0; - acomp_req->dlen = dlen + head_size; + acomp_req->dlen = ops->get_dstlen(sqe); if (acomp_req->base.complete) acomp_request_complete(acomp_req, err); @@ -447,22 +317,13 @@ static int hisi_zip_acompress(struct acomp_req *acomp_req) struct hisi_zip_qp_ctx *qp_ctx = &ctx->qp_ctx[HZIP_QPC_COMP]; struct device *dev = &qp_ctx->qp->qm->pdev->dev; struct hisi_zip_req *req; - int head_size; int ret; - /* let's output compression head now */ - head_size = add_comp_head(acomp_req->dst, qp_ctx->qp->req_type); - if (unlikely(head_size < 0)) { - dev_err_ratelimited(dev, "failed to add comp head (%d)!\n", - head_size); - return head_size; - } - - req = hisi_zip_create_req(acomp_req, qp_ctx, head_size, true); + req = hisi_zip_create_req(qp_ctx, acomp_req); if (IS_ERR(req)) return PTR_ERR(req); - ret = hisi_zip_do_work(req, qp_ctx); + ret = hisi_zip_do_work(qp_ctx, req); if (unlikely(ret != -EINPROGRESS)) { dev_info_ratelimited(dev, "failed to do compress (%d)!\n", ret); hisi_zip_remove_req(qp_ctx, req); @@ -477,20 +338,13 @@ static int hisi_zip_adecompress(struct acomp_req *acomp_req) struct hisi_zip_qp_ctx *qp_ctx = &ctx->qp_ctx[HZIP_QPC_DECOMP]; struct device *dev = &qp_ctx->qp->qm->pdev->dev; struct hisi_zip_req *req; - int head_size, ret; - - head_size = get_comp_head_size(acomp_req, qp_ctx->qp->req_type); - if (unlikely(head_size < 0)) { - dev_err_ratelimited(dev, "failed to get comp head size (%d)!\n", - head_size); - return head_size; - } + int ret; - req = hisi_zip_create_req(acomp_req, qp_ctx, head_size, false); + req = hisi_zip_create_req(qp_ctx, acomp_req); if (IS_ERR(req)) return PTR_ERR(req); - ret = hisi_zip_do_work(req, qp_ctx); + ret = hisi_zip_do_work(qp_ctx, req); if (unlikely(ret != -EINPROGRESS)) { dev_info_ratelimited(dev, "failed to do decompress (%d)!\n", ret); @@ -527,28 +381,15 @@ static void hisi_zip_release_qp(struct hisi_zip_qp_ctx *qp_ctx) hisi_qm_free_qps(&qp_ctx->qp, 1); } -static const struct hisi_zip_sqe_ops hisi_zip_ops_v1 = { - .sqe_type = 0, - .fill_addr = hisi_zip_fill_addr, - .fill_buf_size = hisi_zip_fill_buf_size, - .fill_buf_type = hisi_zip_fill_buf_type, - .fill_req_type = hisi_zip_fill_req_type, - .fill_tag = hisi_zip_fill_tag_v1, - .fill_sqe_type = hisi_zip_fill_sqe_type, - .get_tag = hisi_zip_get_tag_v1, - .get_status = hisi_zip_get_status, - .get_dstlen = hisi_zip_get_dstlen, -}; - -static const struct hisi_zip_sqe_ops hisi_zip_ops_v2 = { +static const struct hisi_zip_sqe_ops hisi_zip_ops = { .sqe_type = 0x3, .fill_addr = hisi_zip_fill_addr, .fill_buf_size = hisi_zip_fill_buf_size, .fill_buf_type = hisi_zip_fill_buf_type, .fill_req_type = hisi_zip_fill_req_type, - .fill_tag = hisi_zip_fill_tag_v2, + .fill_tag = hisi_zip_fill_tag, .fill_sqe_type = hisi_zip_fill_sqe_type, - .get_tag = hisi_zip_get_tag_v2, + .get_tag = hisi_zip_get_tag, .get_status = hisi_zip_get_status, .get_dstlen = hisi_zip_get_dstlen, }; @@ -584,10 +425,7 @@ static int hisi_zip_ctx_init(struct hisi_zip_ctx *hisi_zip_ctx, u8 req_type, int qp_ctx->zip_dev = hisi_zip; } - if (hisi_zip->qm.ver < QM_HW_V3) - hisi_zip_ctx->ops = &hisi_zip_ops_v1; - else - hisi_zip_ctx->ops = &hisi_zip_ops_v2; + hisi_zip_ctx->ops = &hisi_zip_ops; return 0; } @@ -745,95 +583,67 @@ static void hisi_zip_acomp_exit(struct crypto_acomp *tfm) hisi_zip_ctx_exit(ctx); } -static struct acomp_alg hisi_zip_acomp_zlib = { - .init = hisi_zip_acomp_init, - .exit = hisi_zip_acomp_exit, - .compress = hisi_zip_acompress, - .decompress = hisi_zip_adecompress, - .base = { - .cra_name = "zlib-deflate", - .cra_driver_name = "hisi-zlib-acomp", - .cra_module = THIS_MODULE, - .cra_priority = HZIP_ALG_PRIORITY, - .cra_ctxsize = sizeof(struct hisi_zip_ctx), - } -}; - -static int hisi_zip_register_zlib(struct hisi_qm *qm) -{ - int ret; - - if (!hisi_zip_alg_support(qm, HZIP_ALG_ZLIB)) - return 0; - - ret = crypto_register_acomp(&hisi_zip_acomp_zlib); - if (ret) - dev_err(&qm->pdev->dev, "failed to register to zlib (%d)!\n", ret); - - return ret; -} - -static void hisi_zip_unregister_zlib(struct hisi_qm *qm) -{ - if (!hisi_zip_alg_support(qm, HZIP_ALG_ZLIB)) - return; - - crypto_unregister_acomp(&hisi_zip_acomp_zlib); -} - -static struct acomp_alg hisi_zip_acomp_gzip = { +static struct acomp_alg hisi_zip_acomp_deflate = { .init = hisi_zip_acomp_init, .exit = hisi_zip_acomp_exit, .compress = hisi_zip_acompress, .decompress = hisi_zip_adecompress, .base = { - .cra_name = "gzip", - .cra_driver_name = "hisi-gzip-acomp", + .cra_name = "deflate", + .cra_driver_name = "hisi-deflate-acomp", .cra_module = THIS_MODULE, - .cra_priority = HZIP_ALG_PRIORITY, + .cra_priority = HZIP_ALG_PRIORITY, .cra_ctxsize = sizeof(struct hisi_zip_ctx), } }; -static int hisi_zip_register_gzip(struct hisi_qm *qm) +static int hisi_zip_register_deflate(struct hisi_qm *qm) { int ret; - if (!hisi_zip_alg_support(qm, HZIP_ALG_GZIP)) + if (!hisi_zip_alg_support(qm, HZIP_ALG_DEFLATE)) return 0; - ret = crypto_register_acomp(&hisi_zip_acomp_gzip); + ret = crypto_register_acomp(&hisi_zip_acomp_deflate); if (ret) - dev_err(&qm->pdev->dev, "failed to register to gzip (%d)!\n", ret); + dev_err(&qm->pdev->dev, "failed to register to deflate (%d)!\n", ret); return ret; } -static void hisi_zip_unregister_gzip(struct hisi_qm *qm) +static void hisi_zip_unregister_deflate(struct hisi_qm *qm) { - if (!hisi_zip_alg_support(qm, HZIP_ALG_GZIP)) + if (!hisi_zip_alg_support(qm, HZIP_ALG_DEFLATE)) return; - crypto_unregister_acomp(&hisi_zip_acomp_gzip); + crypto_unregister_acomp(&hisi_zip_acomp_deflate); } int hisi_zip_register_to_crypto(struct hisi_qm *qm) { int ret = 0; - ret = hisi_zip_register_zlib(qm); - if (ret) - return ret; + mutex_lock(&zip_algs_lock); + if (zip_available_devs++) + goto unlock; - ret = hisi_zip_register_gzip(qm); + ret = hisi_zip_register_deflate(qm); if (ret) - hisi_zip_unregister_zlib(qm); + zip_available_devs--; +unlock: + mutex_unlock(&zip_algs_lock); return ret; } void hisi_zip_unregister_from_crypto(struct hisi_qm *qm) { - hisi_zip_unregister_zlib(qm); - hisi_zip_unregister_gzip(qm); + mutex_lock(&zip_algs_lock); + if (--zip_available_devs) + goto unlock; + + hisi_zip_unregister_deflate(qm); + +unlock: + mutex_unlock(&zip_algs_lock); } |