diff options
Diffstat (limited to 'sound/soc/intel/skylake/skl-sst-cldma.c')
| -rw-r--r-- | sound/soc/intel/skylake/skl-sst-cldma.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sound/soc/intel/skylake/skl-sst-cldma.c b/sound/soc/intel/skylake/skl-sst-cldma.c index 4ddabe30b62a..b03d9db0acad 100644 --- a/sound/soc/intel/skylake/skl-sst-cldma.c +++ b/sound/soc/intel/skylake/skl-sst-cldma.c @@ -180,6 +180,21 @@ static void skl_cldma_fill_buffer(struct sst_dsp *ctx, unsigned int size, ctx->cl_dev.dma_buffer_offset, trigger); dev_dbg(ctx->dev, "spib position: %d\n", ctx->cl_dev.curr_spib_pos); + /* + * Check if the size exceeds buffer boundary. If it exceeds + * max_buffer size, then copy till buffer size and then copy + * remaining buffer from the start of ring buffer. + */ + if (ctx->cl_dev.dma_buffer_offset + size > ctx->cl_dev.bufsize) { + unsigned int size_b = ctx->cl_dev.bufsize - + ctx->cl_dev.dma_buffer_offset; + memcpy(ctx->cl_dev.dmab_data.area + ctx->cl_dev.dma_buffer_offset, + curr_pos, size_b); + size -= size_b; + curr_pos += size_b; + ctx->cl_dev.dma_buffer_offset = 0; + } + memcpy(ctx->cl_dev.dmab_data.area + ctx->cl_dev.dma_buffer_offset, curr_pos, size); |