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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2025-03-15 18:30:40 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2025-03-21 17:35:26 +0800 |
| commit | 8a6771cda3f48a4d954647d69ff0094346db6191 (patch) | |
| tree | da7a3debcf41d3f1cef1e8e25368935b299d197f /crypto/acompress.c | |
| parent | dfd3bc6977e8b99458169c19cd703d34ffa86acc (diff) | |
| download | ath-8a6771cda3f48a4d954647d69ff0094346db6191.tar.gz | |
crypto: acomp - Add support for folios
For many users, it's easier to supply a folio rather than an SG
list since they already have them. Add support for folios to the
acomp interface.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/acompress.c')
| -rw-r--r-- | crypto/acompress.c | 40 |
1 files changed, 35 insertions, 5 deletions
diff --git a/crypto/acompress.c b/crypto/acompress.c index d54abc27330f2..6ef335f5bf272 100644 --- a/crypto/acompress.c +++ b/crypto/acompress.c @@ -12,6 +12,7 @@ #include <linux/errno.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/page-flags.h> #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/string.h> @@ -189,18 +190,25 @@ static void acomp_reqchain_virt(struct acomp_req_chain *state, int err) req->base.err = err; state = &req->chain; - if (state->src) + if (state->flags & CRYPTO_ACOMP_REQ_SRC_VIRT) acomp_request_set_src_dma(req, state->src, slen); - if (state->dst) + else if (state->flags & CRYPTO_ACOMP_REQ_SRC_FOLIO) + acomp_request_set_src_folio(req, state->sfolio, state->soff, slen); + if (state->flags & CRYPTO_ACOMP_REQ_DST_VIRT) acomp_request_set_dst_dma(req, state->dst, dlen); - state->src = NULL; - state->dst = NULL; + else if (state->flags & CRYPTO_ACOMP_REQ_DST_FOLIO) + acomp_request_set_dst_folio(req, state->dfolio, state->doff, dlen); } static void acomp_virt_to_sg(struct acomp_req *req) { struct acomp_req_chain *state = &req->chain; + state->flags = req->base.flags & (CRYPTO_ACOMP_REQ_SRC_VIRT | + CRYPTO_ACOMP_REQ_DST_VIRT | + CRYPTO_ACOMP_REQ_SRC_FOLIO | + CRYPTO_ACOMP_REQ_DST_FOLIO); + if (acomp_request_src_isvirt(req)) { unsigned int slen = req->slen; const u8 *svirt = req->svirt; @@ -208,6 +216,17 @@ static void acomp_virt_to_sg(struct acomp_req *req) state->src = svirt; sg_init_one(&state->ssg, svirt, slen); acomp_request_set_src_sg(req, &state->ssg, slen); + } else if (acomp_request_src_isfolio(req)) { + struct folio *folio = req->sfolio; + unsigned int slen = req->slen; + size_t off = req->soff; + + state->sfolio = folio; + state->soff = off; + sg_init_table(&state->ssg, 1); + sg_set_page(&state->ssg, folio_page(folio, off / PAGE_SIZE), + slen, off % PAGE_SIZE); + acomp_request_set_src_sg(req, &state->ssg, slen); } if (acomp_request_dst_isvirt(req)) { @@ -217,6 +236,17 @@ static void acomp_virt_to_sg(struct acomp_req *req) state->dst = dvirt; sg_init_one(&state->dsg, dvirt, dlen); acomp_request_set_dst_sg(req, &state->dsg, dlen); + } else if (acomp_request_dst_isfolio(req)) { + struct folio *folio = req->dfolio; + unsigned int dlen = req->dlen; + size_t off = req->doff; + + state->dfolio = folio; + state->doff = off; + sg_init_table(&state->dsg, 1); + sg_set_page(&state->dsg, folio_page(folio, off / PAGE_SIZE), + dlen, off % PAGE_SIZE); + acomp_request_set_src_sg(req, &state->dsg, dlen); } } @@ -328,7 +358,7 @@ static int acomp_do_req_chain(struct acomp_req *req, int err; if (crypto_acomp_req_chain(tfm) || - (!acomp_request_chained(req) && !acomp_request_isvirt(req))) + (!acomp_request_chained(req) && acomp_request_issg(req))) return op(req); if (acomp_is_async(tfm)) { |