With DMA API debugging Barebox complains that some buffers are never mapped before a sync. Add the map and unmap function calls. Signed-off-by: Rouven Czerwinski <r.czerwinski@xxxxxxxxxxxxxx> --- drivers/crypto/caam/caamrng.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c index ea154913ca..1b5713f978 100644 --- a/drivers/crypto/caam/caamrng.c +++ b/drivers/crypto/caam/caamrng.c @@ -91,6 +91,7 @@ static void rng_done(struct device *jrdev, u32 *desc, u32 err, void *context) /* Buffer refilled, invalidate cache */ dma_sync_single_for_cpu(jrdev, bd->addr, RN_BUF_SIZE, DMA_FROM_DEVICE); + dma_unmap_single(jrdev, (unsigned long)desc, desc_bytes(desc), DMA_TO_DEVICE); } static inline int submit_job(struct caam_rng_ctx *ctx, int to_current) @@ -102,6 +103,7 @@ static inline int submit_job(struct caam_rng_ctx *ctx, int to_current) dev_dbg(jrdev, "submitting job %d\n", !(to_current ^ ctx->current_buf)); + dma_map_single(jrdev, (void *)desc, desc_bytes(desc), DMA_TO_DEVICE); dma_sync_single_for_device(jrdev, (unsigned long)desc, desc_bytes(desc), DMA_TO_DEVICE); @@ -180,6 +182,7 @@ static inline int rng_create_sh_desc(struct caam_rng_ctx *ctx) ctx->sh_desc_dma = (dma_addr_t)desc; + dma_map_single(ctx->jrdev, desc, desc_bytes(desc), DMA_TO_DEVICE); dma_sync_single_for_device(ctx->jrdev, (unsigned long)desc, desc_bytes(desc), DMA_TO_DEVICE); @@ -210,6 +213,7 @@ static int caam_init_buf(struct caam_rng_ctx *ctx, int buf_id) int err; bd->buf = dma_alloc_coherent(RN_BUF_SIZE, &bd->addr); + dma_map_single(ctx->jrdev, (void *)bd->addr, RN_BUF_SIZE, DMA_FROM_DEVICE); err = rng_create_job_desc(ctx, buf_id); if (err) -- 2.39.2
