11 files changed, 126 insertions, 59 deletions

diff --git a/sound/soc/intel/sst-acpi.c b/sound/soc/intel/sst-acpi.c
index 5d06eecb6198..18aee77f8d4a 100644
--- a/sound/soc/intel/sst-acpi.c
+++ b/sound/soc/intel/sst-acpi.c
@@ -138,6 +138,7 @@ static int sst_acpi_probe(struct platform_device *pdev)
 
         sst_pdata = &sst_acpi->sst_pdata;
         sst_pdata->id = desc->sst_id;
+        sst_pdata->dma_dev = dev;
         sst_acpi->desc = desc;
         sst_acpi->mach = mach;
 
diff --git a/sound/soc/intel/sst-baytrail-dsp.c b/sound/soc/intel/sst-baytrail-dsp.c
index a50bf7fc0e3a..adf0aca5aca6 100644
--- a/sound/soc/intel/sst-baytrail-dsp.c
+++ b/sound/soc/intel/sst-baytrail-dsp.c
@@ -324,7 +324,7 @@ static int sst_byt_init(struct sst_dsp *sst, struct sst_pdata *pdata)
         memcpy_toio(sst->addr.lpe + SST_BYT_MAILBOX_OFFSET,
                &pdata->fw_base, sizeof(u32));
 
-        ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
+        ret = dma_coerce_mask_and_coherent(sst->dma_dev, DMA_BIT_MASK(32));
         if (ret)
                 return ret;
 
diff --git a/sound/soc/intel/sst-baytrail-ipc.c b/sound/soc/intel/sst-baytrail-ipc.c
index d0eaeee21be4..0d31dbbf4806 100644
--- a/sound/soc/intel/sst-baytrail-ipc.c
+++ b/sound/soc/intel/sst-baytrail-ipc.c
@@ -542,16 +542,20 @@ struct sst_byt_stream *sst_byt_stream_new(struct sst_byt *byt, int id,
         void *data)
 {
         struct sst_byt_stream *stream;
+        struct sst_dsp *sst = byt->dsp;
+        unsigned long flags;
 
         stream = kzalloc(sizeof(*stream), GFP_KERNEL);
         if (stream == NULL)
                 return NULL;
 
+        spin_lock_irqsave(&sst->spinlock, flags);
         list_add(&stream->node, &byt->stream_list);
         stream->notify_position = notify_position;
         stream->pdata = data;
         stream->byt = byt;
         stream->str_id = id;
+        spin_unlock_irqrestore(&sst->spinlock, flags);
 
         return stream;
 }
@@ -630,6 +634,8 @@ int sst_byt_stream_free(struct sst_byt *byt, struct sst_byt_stream *stream)
 {
         u64 header;
         int ret = 0;
+        struct sst_dsp *sst = byt->dsp;
+        unsigned long flags;
 
         if (!stream->commited)
                 goto out;
@@ -644,8 +650,10 @@ int sst_byt_stream_free(struct sst_byt *byt, struct sst_byt_stream *stream)
 
         stream->commited = false;
 out:
+        spin_lock_irqsave(&sst->spinlock, flags);
         list_del(&stream->node);
         kfree(stream);
+        spin_unlock_irqrestore(&sst->spinlock, flags);
 
         return ret;
 }
diff --git a/sound/soc/intel/sst-dsp-priv.h b/sound/soc/intel/sst-dsp-priv.h
index 30ca14a6a835..401213455497 100644
--- a/sound/soc/intel/sst-dsp-priv.h
+++ b/sound/soc/intel/sst-dsp-priv.h
@@ -228,6 +228,7 @@ struct sst_dsp {
         spinlock_t spinlock;    /* IPC locking */
         struct mutex mutex;     /* DSP FW lock */
         struct device *dev;
+        struct device *dma_dev;
         void *thread_context;
         int irq;
         u32 id;
diff --git a/sound/soc/intel/sst-dsp.c b/sound/soc/intel/sst-dsp.c
index 0c129fd85ecf..0b715b20a2d7 100644
--- a/sound/soc/intel/sst-dsp.c
+++ b/sound/soc/intel/sst-dsp.c
@@ -337,6 +337,7 @@ struct sst_dsp *sst_dsp_new(struct device *dev,
         spin_lock_init(&sst->spinlock);
         mutex_init(&sst->mutex);
         sst->dev = dev;
+        sst->dma_dev = pdata->dma_dev;
         sst->thread_context = sst_dev->thread_context;
         sst->sst_dev = sst_dev;
         sst->id = pdata->id;
diff --git a/sound/soc/intel/sst-dsp.h b/sound/soc/intel/sst-dsp.h
index 74052b59485c..e44423be66c4 100644
--- a/sound/soc/intel/sst-dsp.h
+++ b/sound/soc/intel/sst-dsp.h
@@ -169,6 +169,7 @@ struct sst_pdata {
         u32 dma_base;
         u32 dma_size;
         int dma_engine;
+        struct device *dma_dev;
 
         /* DSP */
         u32 id;
diff --git a/sound/soc/intel/sst-firmware.c b/sound/soc/intel/sst-firmware.c
index f7687107cf7f..928f228c38e7 100644
--- a/sound/soc/intel/sst-firmware.c
+++ b/sound/soc/intel/sst-firmware.c
@@ -57,14 +57,8 @@ struct sst_fw *sst_fw_new(struct sst_dsp *dsp,
         sst_fw->private = private;
         sst_fw->size = fw->size;
 
-        err = dma_coerce_mask_and_coherent(dsp->dev, DMA_BIT_MASK(32));
-        if (err < 0) {
-                kfree(sst_fw);
-                return NULL;
-        }
-
         /* allocate DMA buffer to store FW data */
-        sst_fw->dma_buf = dma_alloc_coherent(dsp->dev, sst_fw->size,
+        sst_fw->dma_buf = dma_alloc_coherent(dsp->dma_dev, sst_fw->size,
                                 &sst_fw->dmable_fw_paddr, GFP_DMA | GFP_KERNEL);
         if (!sst_fw->dma_buf) {
                 dev_err(dsp->dev, "error: DMA alloc failed\n");
@@ -106,7 +100,7 @@ void sst_fw_free(struct sst_fw *sst_fw)
         list_del(&sst_fw->list);
         mutex_unlock(&dsp->mutex);
 
-        dma_free_coherent(dsp->dev, sst_fw->size, sst_fw->dma_buf,
+        dma_free_coherent(dsp->dma_dev, sst_fw->size, sst_fw->dma_buf,
                         sst_fw->dmable_fw_paddr);
         kfree(sst_fw);
 }
@@ -202,6 +196,9 @@ static int block_alloc_contiguous(struct sst_module *module,
                 size -= block->size;
         }
 
+        list_for_each_entry(block, &tmp, list)
+                list_add(&block->module_list, &module->block_list);
+
         list_splice(&tmp, &dsp->used_block_list);
         return 0;
 }
@@ -247,8 +244,7 @@ static int block_alloc(struct sst_module *module,
                 /* do we span > 1 blocks */
                 if (data->size > block->size) {
                         ret = block_alloc_contiguous(module, data,
-                                block->offset + block->size,
-                                data->size - block->size);
+                                block->offset, data->size);
                         if (ret == 0)
                                 return ret;
                 }
@@ -344,7 +340,7 @@ static int block_alloc_fixed(struct sst_module *module,
 
                         err = block_alloc_contiguous(module, data,
                                 block->offset + block->size,
-                                data->size - block->size + data->offset - block->offset);
+                                data->size - block->size);
                         if (err < 0)
                                 return -ENOMEM;
 
@@ -371,15 +367,10 @@ static int block_alloc_fixed(struct sst_module *module,
                 if (data->offset >= block->offset && data->offset < block_end) {
 
                         err = block_alloc_contiguous(module, data,
-                                block->offset + block->size,
-                                data->size - block->size);
+                                block->offset, data->size);
                         if (err < 0)
                                 return -ENOMEM;
 
-                        /* add block */
-                        block->data_type = data->data_type;
-                        list_move(&block->list, &dsp->used_block_list);
-                        list_add(&block->module_list, &module->block_list);
                         return 0;
                 }
 
diff --git a/sound/soc/intel/sst-haswell-dsp.c b/sound/soc/intel/sst-haswell-dsp.c
index f5ebf36af889..535f517629fd 100644
--- a/sound/soc/intel/sst-haswell-dsp.c
+++ b/sound/soc/intel/sst-haswell-dsp.c
@@ -433,7 +433,7 @@ static int hsw_init(struct sst_dsp *sst, struct sst_pdata *pdata)
         int ret = -ENODEV, i, j, region_count;
         u32 offset, size;
 
-        dev = sst->dev;
+        dev = sst->dma_dev;
 
         switch (sst->id) {
         case SST_DEV_ID_LYNX_POINT:
@@ -466,7 +466,7 @@ static int hsw_init(struct sst_dsp *sst, struct sst_pdata *pdata)
                 return ret;
         }
 
-        ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
+        ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(31));
         if (ret)
                 return ret;
 
diff --git a/sound/soc/intel/sst-haswell-ipc.c b/sound/soc/intel/sst-haswell-ipc.c
index 50e4246d4b57..e7996b39a484 100644
--- a/sound/soc/intel/sst-haswell-ipc.c
+++ b/sound/soc/intel/sst-haswell-ipc.c
@@ -1159,11 +1159,14 @@ struct sst_hsw_stream *sst_hsw_stream_new(struct sst_hsw *hsw, int id,
         void *data)
 {
         struct sst_hsw_stream *stream;
+        struct sst_dsp *sst = hsw->dsp;
+        unsigned long flags;
 
         stream = kzalloc(sizeof(*stream), GFP_KERNEL);
         if (stream == NULL)
                 return NULL;
 
+        spin_lock_irqsave(&sst->spinlock, flags);
         list_add(&stream->node, &hsw->stream_list);
         stream->notify_position = notify_position;
         stream->pdata = data;
@@ -1172,6 +1175,7 @@ struct sst_hsw_stream *sst_hsw_stream_new(struct sst_hsw *hsw, int id,
 
         /* work to process notification messages */
         INIT_WORK(&stream->notify_work, hsw_notification_work);
+        spin_unlock_irqrestore(&sst->spinlock, flags);
 
         return stream;
 }
@@ -1180,6 +1184,8 @@ int sst_hsw_stream_free(struct sst_hsw *hsw, struct sst_hsw_stream *stream)
 {
         u32 header;
         int ret = 0;
+        struct sst_dsp *sst = hsw->dsp;
+        unsigned long flags;
 
         /* dont free DSP streams that are not commited */
         if (!stream->commited)
@@ -1201,8 +1207,11 @@ int sst_hsw_stream_free(struct sst_hsw *hsw, struct sst_hsw_stream *stream)
         trace_hsw_stream_free_req(stream, &stream->free_req);
 
 out:
+        cancel_work_sync(&stream->notify_work);
+        spin_lock_irqsave(&sst->spinlock, flags);
         list_del(&stream->node);
         kfree(stream);
+        spin_unlock_irqrestore(&sst->spinlock, flags);
 
         return ret;
 }
@@ -1538,10 +1547,28 @@ int sst_hsw_stream_reset(struct sst_hsw *hsw, struct sst_hsw_stream *stream)
 }
 
 /* Stream pointer positions */
-int sst_hsw_get_dsp_position(struct sst_hsw *hsw,
+u32 sst_hsw_get_dsp_position(struct sst_hsw *hsw,
         struct sst_hsw_stream *stream)
 {
-        return stream->rpos.position;
+        u32 rpos;
+
+        sst_dsp_read(hsw->dsp, &rpos,
+                stream->reply.read_position_register_address, sizeof(rpos));
+
+        return rpos;
+}
+
+/* Stream presentation (monotonic) positions */
+u64 sst_hsw_get_dsp_presentation_position(struct sst_hsw *hsw,
+        struct sst_hsw_stream *stream)
+{
+        u64 ppos;
+
+        sst_dsp_read(hsw->dsp, &ppos,
+                stream->reply.presentation_position_register_address,
+                sizeof(ppos));
+
+        return ppos;
 }
 
 int sst_hsw_stream_set_write_position(struct sst_hsw *hsw,
diff --git a/sound/soc/intel/sst-haswell-ipc.h b/sound/soc/intel/sst-haswell-ipc.h
index d517929ccc38..2ac194a6d04b 100644
--- a/sound/soc/intel/sst-haswell-ipc.h
+++ b/sound/soc/intel/sst-haswell-ipc.h
@@ -464,7 +464,9 @@ int sst_hsw_stream_get_write_pos(struct sst_hsw *hsw,
         struct sst_hsw_stream *stream, u32 *position);
 int sst_hsw_stream_set_write_position(struct sst_hsw *hsw,
         struct sst_hsw_stream *stream, u32 stage_id, u32 position);
-int sst_hsw_get_dsp_position(struct sst_hsw *hsw,
+u32 sst_hsw_get_dsp_position(struct sst_hsw *hsw,
+        struct sst_hsw_stream *stream);
+u64 sst_hsw_get_dsp_presentation_position(struct sst_hsw *hsw,
         struct sst_hsw_stream *stream);
 
 /* HW port config */
diff --git a/sound/soc/intel/sst-haswell-pcm.c b/sound/soc/intel/sst-haswell-pcm.c
index 0a32dd13a23d..9d5f64a583a3 100644
--- a/sound/soc/intel/sst-haswell-pcm.c
+++ b/sound/soc/intel/sst-haswell-pcm.c
@@ -99,6 +99,7 @@ struct hsw_pcm_data {
         struct snd_compr_stream *cstream;
         unsigned int wpos;
         struct mutex mutex;
+        bool allocated;
 };
 
 /* private data for the driver */
@@ -107,12 +108,14 @@ struct hsw_priv_data {
         struct sst_hsw *hsw;
 
         /* page tables */
-        unsigned char *pcm_pg[HSW_PCM_COUNT][2];
+        struct snd_dma_buffer dmab[HSW_PCM_COUNT][2];
 
         /* DAI data */
         struct hsw_pcm_data pcm[HSW_PCM_COUNT];
 };
 
+static u32 hsw_notify_pointer(struct sst_hsw_stream *stream, void *data);
+
 static inline u32 hsw_mixer_to_ipc(unsigned int value)
 {
         if (value >= ARRAY_SIZE(volume_map))
@@ -273,28 +276,26 @@ static const struct snd_kcontrol_new hsw_volume_controls[] = {
 };
 
 /* Create DMA buffer page table for DSP */
-static int create_adsp_page_table(struct hsw_priv_data *pdata,
-        struct snd_soc_pcm_runtime *rtd,
-        unsigned char *dma_area, size_t size, int pcm, int stream)
+static int create_adsp_page_table(struct snd_pcm_substream *substream,
+        struct hsw_priv_data *pdata, struct snd_soc_pcm_runtime *rtd,
+        unsigned char *dma_area, size_t size, int pcm)
 {
-        int i, pages;
+        struct snd_dma_buffer *dmab = snd_pcm_get_dma_buf(substream);
+        int i, pages, stream = substream->stream;
 
-        if (size % PAGE_SIZE)
-                pages = (size / PAGE_SIZE) + 1;
-        else
-                pages = size / PAGE_SIZE;
+        pages = snd_sgbuf_aligned_pages(size);
 
         dev_dbg(rtd->dev, "generating page table for %p size 0x%zu pages %d\n",
                 dma_area, size, pages);
 
         for (i = 0; i < pages; i++) {
                 u32 idx = (((i << 2) + i)) >> 1;
-                u32 pfn = (virt_to_phys(dma_area + i * PAGE_SIZE)) >> PAGE_SHIFT;
+                u32 pfn = snd_sgbuf_get_addr(dmab, i * PAGE_SIZE) >> PAGE_SHIFT;
                 u32 *pg_table;
 
                 dev_dbg(rtd->dev, "pfn i %i idx %d pfn %x\n", i, idx, pfn);
 
-                pg_table = (u32*)(pdata->pcm_pg[pcm][stream] + idx);
+                pg_table = (u32 *)(pdata->dmab[pcm][stream].area + idx);
 
                 if (i & 1)
                         *pg_table |= (pfn << 4);
@@ -317,12 +318,36 @@ static int hsw_pcm_hw_params(struct snd_pcm_substream *substream,
         struct sst_hsw *hsw = pdata->hsw;
         struct sst_module *module_data;
         struct sst_dsp *dsp;
+        struct snd_dma_buffer *dmab;
         enum sst_hsw_stream_type stream_type;
         enum sst_hsw_stream_path_id path_id;
         u32 rate, bits, map, pages, module_id;
         u8 channels;
         int ret;
 
+        /* check if we are being called a subsequent time */
+        if (pcm_data->allocated) {
+                ret = sst_hsw_stream_reset(hsw, pcm_data->stream);
+                if (ret < 0)
+                        dev_dbg(rtd->dev, "error: reset stream failed %d\n",
+                                ret);
+
+                ret = sst_hsw_stream_free(hsw, pcm_data->stream);
+                if (ret < 0) {
+                        dev_dbg(rtd->dev, "error: free stream failed %d\n",
+                                ret);
+                        return ret;
+                }
+                pcm_data->allocated = false;
+
+                pcm_data->stream = sst_hsw_stream_new(hsw, rtd->cpu_dai->id,
+                        hsw_notify_pointer, pcm_data);
+                if (pcm_data->stream == NULL) {
+                        dev_err(rtd->dev, "error: failed to create stream\n");
+                        return -EINVAL;
+                }
+        }
+
         /* stream direction */
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
                 path_id = SST_HSW_STREAM_PATH_SSP0_OUT;
@@ -416,8 +441,10 @@ static int hsw_pcm_hw_params(struct snd_pcm_substream *substream,
                 return ret;
         }
 
-        ret = create_adsp_page_table(pdata, rtd, runtime->dma_area,
-                runtime->dma_bytes, rtd->cpu_dai->id, substream->stream);
+        dmab = snd_pcm_get_dma_buf(substream);
+
+        ret = create_adsp_page_table(substream, pdata, rtd, runtime->dma_area,
+                runtime->dma_bytes, rtd->cpu_dai->id);
         if (ret < 0)
                 return ret;
 
@@ -430,9 +457,9 @@ static int hsw_pcm_hw_params(struct snd_pcm_substream *substream,
                 pages = runtime->dma_bytes / PAGE_SIZE;
 
         ret = sst_hsw_stream_buffer(hsw, pcm_data->stream,
-                virt_to_phys(pdata->pcm_pg[rtd->cpu_dai->id][substream->stream]),
+                pdata->dmab[rtd->cpu_dai->id][substream->stream].addr,
                 pages, runtime->dma_bytes, 0,
-                (u32)(virt_to_phys(runtime->dma_area) >> PAGE_SHIFT));
+                snd_sgbuf_get_addr(dmab, 0) >> PAGE_SHIFT);
         if (ret < 0) {
                 dev_err(rtd->dev, "error: failed to set DMA buffer %d\n", ret);
                 return ret;
@@ -474,6 +501,7 @@ static int hsw_pcm_hw_params(struct snd_pcm_substream *substream,
                 dev_err(rtd->dev, "error: failed to commit stream %d\n", ret);
                 return ret;
         }
+        pcm_data->allocated = true;
 
         ret = sst_hsw_stream_pause(hsw, pcm_data->stream, 1);
         if (ret < 0)
@@ -541,12 +569,14 @@ static snd_pcm_uframes_t hsw_pcm_pointer(struct snd_pcm_substream *substream)
         struct hsw_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd);
         struct sst_hsw *hsw = pdata->hsw;
         snd_pcm_uframes_t offset;
+        uint64_t ppos;
+        u32 position = sst_hsw_get_dsp_position(hsw, pcm_data->stream);
 
-        offset = bytes_to_frames(runtime,
-                sst_hsw_get_dsp_position(hsw, pcm_data->stream));
+        offset = bytes_to_frames(runtime, position);
+        ppos = sst_hsw_get_dsp_presentation_position(hsw, pcm_data->stream);
 
-        dev_dbg(rtd->dev, "PCM: DMA pointer %zu bytes\n",
-                frames_to_bytes(runtime, (u32)offset));
+        dev_dbg(rtd->dev, "PCM: DMA pointer %du bytes, pos %llu\n",
+                position, ppos);
         return offset;
 }
 
@@ -606,6 +636,7 @@ static int hsw_pcm_close(struct snd_pcm_substream *substream)
                 dev_dbg(rtd->dev, "error: free stream failed %d\n", ret);
                 goto out;
         }
+        pcm_data->allocated = 0;
         pcm_data->stream = NULL;
 
 out:
@@ -621,7 +652,7 @@ static struct snd_pcm_ops hsw_pcm_ops = {
         .hw_free        = hsw_pcm_hw_free,
         .trigger        = hsw_pcm_trigger,
         .pointer        = hsw_pcm_pointer,
-        .mmap           = snd_pcm_lib_default_mmap,
+        .page           = snd_pcm_sgbuf_ops_page,
 };
 
 static void hsw_pcm_free(struct snd_pcm *pcm)
@@ -632,17 +663,16 @@ static void hsw_pcm_free(struct snd_pcm *pcm)
 static int hsw_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_pcm *pcm = rtd->pcm;
+        struct snd_soc_platform *platform = rtd->platform;
+        struct sst_pdata *pdata = dev_get_platdata(platform->dev);
+        struct device *dev = pdata->dma_dev;
         int ret = 0;
 
-        ret = dma_coerce_mask_and_coherent(rtd->card->dev, DMA_BIT_MASK(32));
-        if (ret)
-                return ret;
-
         if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream ||
                         pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
                 ret = snd_pcm_lib_preallocate_pages_for_all(pcm,
-                        SNDRV_DMA_TYPE_DEV,
-                        rtd->card->dev,
+                        SNDRV_DMA_TYPE_DEV_SG,
+                        dev,
                         hsw_pcm_hardware.buffer_bytes_max,
                         hsw_pcm_hardware.buffer_bytes_max);
                 if (ret) {
@@ -742,11 +772,14 @@ static int hsw_pcm_probe(struct snd_soc_platform *platform)
 {
         struct sst_pdata *pdata = dev_get_platdata(platform->dev);
         struct hsw_priv_data *priv_data;
-        int i;
+        struct device *dma_dev;
+        int i, ret = 0;
 
         if (!pdata)
                 return -ENODEV;
 
+        dma_dev = pdata->dma_dev;
+
         priv_data = devm_kzalloc(platform->dev, sizeof(*priv_data), GFP_KERNEL);
         priv_data->hsw = pdata->dsp;
         snd_soc_platform_set_drvdata(platform, priv_data);
@@ -758,15 +791,17 @@ static int hsw_pcm_probe(struct snd_soc_platform *platform)
 
                 /* playback */
                 if (hsw_dais[i].playback.channels_min) {
-                        priv_data->pcm_pg[i][0] = kzalloc(PAGE_SIZE, GFP_DMA);
-                        if (priv_data->pcm_pg[i][0] == NULL)
+                        ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dma_dev,
+                                PAGE_SIZE, &priv_data->dmab[i][0]);
+                        if (ret < 0)
                                 goto err;
                 }
 
                 /* capture */
                 if (hsw_dais[i].capture.channels_min) {
-                        priv_data->pcm_pg[i][1] = kzalloc(PAGE_SIZE, GFP_DMA);
-                        if (priv_data->pcm_pg[i][1] == NULL)
+                        ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dma_dev,
+                                PAGE_SIZE, &priv_data->dmab[i][1]);
+                        if (ret < 0)
                                 goto err;
                 }
         }
@@ -776,11 +811,11 @@ static int hsw_pcm_probe(struct snd_soc_platform *platform)
 err:
         for (;i >= 0; i--) {
                 if (hsw_dais[i].playback.channels_min)
-                        kfree(priv_data->pcm_pg[i][0]);
+                        snd_dma_free_pages(&priv_data->dmab[i][0]);
                 if (hsw_dais[i].capture.channels_min)
-                        kfree(priv_data->pcm_pg[i][1]);
+                        snd_dma_free_pages(&priv_data->dmab[i][1]);
         }
-        return -ENOMEM;
+        return ret;
 }
 
 static int hsw_pcm_remove(struct snd_soc_platform *platform)
@@ -791,9 +826,9 @@ static int hsw_pcm_remove(struct snd_soc_platform *platform)
 
         for (i = 0; i < ARRAY_SIZE(hsw_dais); i++) {
                 if (hsw_dais[i].playback.channels_min)
-                        kfree(priv_data->pcm_pg[i][0]);
+                        snd_dma_free_pages(&priv_data->dmab[i][0]);
                 if (hsw_dais[i].capture.channels_min)
-                        kfree(priv_data->pcm_pg[i][1]);
+                        snd_dma_free_pages(&priv_data->dmab[i][1]);
         }
 
         return 0;