#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
#include <linux/pci.h>
+#include <linux/acpi.h>
+
+/* supported DMA engine drivers */
+#include <linux/platform_data/dma-dw.h>
+#include <linux/dma/dw.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include "sst-dsp.h"
#include "sst-dsp-priv.h"
-static void block_module_remove(struct sst_module *module);
+#define SST_DMA_RESOURCES 2
+#define SST_DSP_DMA_MAX_BURST 0x3
+#define SST_HSW_BLOCK_ANY 0xffffffff
+
+#define SST_HSW_MASK_DMA_ADDR_DSP 0xfff00000
+
+struct sst_dma {
+ struct sst_dsp *sst;
+
+ struct dw_dma_chip *chip;
+
+ struct dma_async_tx_descriptor *desc;
+ struct dma_chan *ch;
+};
static inline void sst_memcpy32(volatile void __iomem *dest, void *src, u32 bytes)
{
__iowrite32_copy((void *)dest, src, bytes/4);
}
+static void sst_dma_transfer_complete(void *arg)
+{
+ struct sst_dsp *sst = (struct sst_dsp *)arg;
+
+ dev_dbg(sst->dev, "DMA: callback\n");
+}
+
+static int sst_dsp_dma_copy(struct sst_dsp *sst, dma_addr_t dest_addr,
+ dma_addr_t src_addr, size_t size)
+{
+ struct dma_async_tx_descriptor *desc;
+ struct sst_dma *dma = sst->dma;
+
+ if (dma->ch == NULL) {
+ dev_err(sst->dev, "error: no DMA channel\n");
+ return -ENODEV;
+ }
+
+ dev_dbg(sst->dev, "DMA: src: 0x%lx dest 0x%lx size %zu\n",
+ (unsigned long)src_addr, (unsigned long)dest_addr, size);
+
+ desc = dma->ch->device->device_prep_dma_memcpy(dma->ch, dest_addr,
+ src_addr, size, DMA_CTRL_ACK);
+ if (!desc){
+ dev_err(sst->dev, "error: dma prep memcpy failed\n");
+ return -EINVAL;
+ }
+
+ desc->callback = sst_dma_transfer_complete;
+ desc->callback_param = sst;
+
+ desc->tx_submit(desc);
+ dma_wait_for_async_tx(desc);
+
+ return 0;
+}
+
+/* copy to DSP */
+int sst_dsp_dma_copyto(struct sst_dsp *sst, dma_addr_t dest_addr,
+ dma_addr_t src_addr, size_t size)
+{
+ return sst_dsp_dma_copy(sst, dest_addr | SST_HSW_MASK_DMA_ADDR_DSP,
+ src_addr, size);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_dma_copyto);
+
+/* copy from DSP */
+int sst_dsp_dma_copyfrom(struct sst_dsp *sst, dma_addr_t dest_addr,
+ dma_addr_t src_addr, size_t size)
+{
+ return sst_dsp_dma_copy(sst, dest_addr,
+ src_addr | SST_HSW_MASK_DMA_ADDR_DSP, size);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_dma_copyfrom);
+
+/* remove module from memory - callers hold locks */
+static void block_list_remove(struct sst_dsp *dsp,
+ struct list_head *block_list)
+{
+ struct sst_mem_block *block, *tmp;
+ int err;
+
+ /* disable each block */
+ list_for_each_entry(block, block_list, module_list) {
+
+ if (block->ops && block->ops->disable) {
+ err = block->ops->disable(block);
+ if (err < 0)
+ dev_err(dsp->dev,
+ "error: cant disable block %d:%d\n",
+ block->type, block->index);
+ }
+ }
+
+ /* mark each block as free */
+ list_for_each_entry_safe(block, tmp, block_list, module_list) {
+ list_del(&block->module_list);
+ list_move(&block->list, &dsp->free_block_list);
+ dev_dbg(dsp->dev, "block freed %d:%d at offset 0x%x\n",
+ block->type, block->index, block->offset);
+ }
+}
+
+/* prepare the memory block to receive data from host - callers hold locks */
+static int block_list_prepare(struct sst_dsp *dsp,
+ struct list_head *block_list)
+{
+ struct sst_mem_block *block;
+ int ret = 0;
+
+ /* enable each block so that's it'e ready for data */
+ list_for_each_entry(block, block_list, module_list) {
+
+ if (block->ops && block->ops->enable) {
+ ret = block->ops->enable(block);
+ if (ret < 0) {
+ dev_err(dsp->dev,
+ "error: cant disable block %d:%d\n",
+ block->type, block->index);
+ goto err;
+ }
+ }
+ }
+ return ret;
+
+err:
+ list_for_each_entry(block, block_list, module_list) {
+ if (block->ops && block->ops->disable)
+ block->ops->disable(block);
+ }
+ return ret;
+}
+
+struct dw_dma_platform_data dw_pdata = {
+ .is_private = 1,
+ .chan_allocation_order = CHAN_ALLOCATION_ASCENDING,
+ .chan_priority = CHAN_PRIORITY_ASCENDING,
+};
+
+static struct dw_dma_chip *dw_probe(struct device *dev, struct resource *mem,
+ int irq)
+{
+ struct dw_dma_chip *chip;
+ int err;
+
+ chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
+ if (!chip)
+ return ERR_PTR(-ENOMEM);
+
+ chip->irq = irq;
+ chip->regs = devm_ioremap_resource(dev, mem);
+ if (IS_ERR(chip->regs))
+ return ERR_CAST(chip->regs);
+
+ err = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(31));
+ if (err)
+ return ERR_PTR(err);
+
+ chip->dev = dev;
+ err = dw_dma_probe(chip, &dw_pdata);
+ if (err)
+ return ERR_PTR(err);
+
+ return chip;
+}
+
+static void dw_remove(struct dw_dma_chip *chip)
+{
+ dw_dma_remove(chip);
+}
+
+static bool dma_chan_filter(struct dma_chan *chan, void *param)
+{
+ struct sst_dsp *dsp = (struct sst_dsp *)param;
+
+ return chan->device->dev == dsp->dma_dev;
+}
+
+int sst_dsp_dma_get_channel(struct sst_dsp *dsp, int chan_id)
+{
+ struct sst_dma *dma = dsp->dma;
+ struct dma_slave_config slave;
+ dma_cap_mask_t mask;
+ int ret;
+
+ /* The Intel MID DMA engine driver needs the slave config set but
+ * Synopsis DMA engine driver safely ignores the slave config */
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_SLAVE, mask);
+ dma_cap_set(DMA_MEMCPY, mask);
+
+ dma->ch = dma_request_channel(mask, dma_chan_filter, dsp);
+ if (dma->ch == NULL) {
+ dev_err(dsp->dev, "error: DMA request channel failed\n");
+ return -EIO;
+ }
+
+ memset(&slave, 0, sizeof(slave));
+ slave.direction = DMA_MEM_TO_DEV;
+ slave.src_addr_width =
+ slave.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ slave.src_maxburst = slave.dst_maxburst = SST_DSP_DMA_MAX_BURST;
+
+ ret = dmaengine_slave_config(dma->ch, &slave);
+ if (ret) {
+ dev_err(dsp->dev, "error: unable to set DMA slave config %d\n",
+ ret);
+ dma_release_channel(dma->ch);
+ dma->ch = NULL;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_dma_get_channel);
+
+void sst_dsp_dma_put_channel(struct sst_dsp *dsp)
+{
+ struct sst_dma *dma = dsp->dma;
+
+ if (!dma->ch)
+ return;
+
+ dma_release_channel(dma->ch);
+ dma->ch = NULL;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_dma_put_channel);
+
+int sst_dma_new(struct sst_dsp *sst)
+{
+ struct sst_pdata *sst_pdata = sst->pdata;
+ struct sst_dma *dma;
+ struct resource mem;
+ const char *dma_dev_name;
+ int ret = 0;
+
+ /* configure the correct platform data for whatever DMA engine
+ * is attached to the ADSP IP. */
+ switch (sst->pdata->dma_engine) {
+ case SST_DMA_TYPE_DW:
+ dma_dev_name = "dw_dmac";
+ break;
+ case SST_DMA_TYPE_MID:
+ dma_dev_name = "Intel MID DMA";
+ break;
+ default:
+ dev_err(sst->dev, "error: invalid DMA engine %d\n",
+ sst->pdata->dma_engine);
+ return -EINVAL;
+ }
+
+ dma = devm_kzalloc(sst->dev, sizeof(struct sst_dma), GFP_KERNEL);
+ if (!dma)
+ return -ENOMEM;
+
+ dma->sst = sst;
+
+ memset(&mem, 0, sizeof(mem));
+
+ mem.start = sst->addr.lpe_base + sst_pdata->dma_base;
+ mem.end = sst->addr.lpe_base + sst_pdata->dma_base + sst_pdata->dma_size - 1;
+ mem.flags = IORESOURCE_MEM;
+
+ /* now register DMA engine device */
+ dma->chip = dw_probe(sst->dma_dev, &mem, sst_pdata->irq);
+ if (IS_ERR(dma->chip)) {
+ dev_err(sst->dev, "error: DMA device register failed\n");
+ ret = PTR_ERR(dma->chip);
+ goto err_dma_dev;
+ }
+
+ sst->dma = dma;
+ sst->fw_use_dma = true;
+ return 0;
+
+err_dma_dev:
+ devm_kfree(sst->dev, dma);
+ return ret;
+}
+EXPORT_SYMBOL(sst_dma_new);
+
+void sst_dma_free(struct sst_dma *dma)
+{
+
+ if (dma == NULL)
+ return;
+
+ if (dma->ch)
+ dma_release_channel(dma->ch);
+
+ if (dma->chip)
+ dw_remove(dma->chip);
+
+}
+EXPORT_SYMBOL(sst_dma_free);
+
/* create new generic firmware object */
struct sst_fw *sst_fw_new(struct sst_dsp *dsp,
const struct firmware *fw, void *private)
/* copy FW data to DMA-able memory */
memcpy((void *)sst_fw->dma_buf, (void *)fw->data, fw->size);
+ if (dsp->fw_use_dma) {
+ err = sst_dsp_dma_get_channel(dsp, 0);
+ if (err < 0)
+ goto chan_err;
+ }
+
/* call core specific FW paser to load FW data into DSP */
err = dsp->ops->parse_fw(sst_fw);
if (err < 0) {
goto parse_err;
}
+ if (dsp->fw_use_dma)
+ sst_dsp_dma_put_channel(dsp);
+
mutex_lock(&dsp->mutex);
list_add(&sst_fw->list, &dsp->fw_list);
mutex_unlock(&dsp->mutex);
return sst_fw;
parse_err:
- dma_free_coherent(dsp->dev, sst_fw->size,
+ if (dsp->fw_use_dma)
+ sst_dsp_dma_put_channel(dsp);
+chan_err:
+ dma_free_coherent(dsp->dma_dev, sst_fw->size,
sst_fw->dma_buf,
sst_fw->dmable_fw_paddr);
+ sst_fw->dma_buf = NULL;
kfree(sst_fw);
return NULL;
}
void sst_fw_unload(struct sst_fw *sst_fw)
{
- struct sst_dsp *dsp = sst_fw->dsp;
- struct sst_module *module, *tmp;
+ struct sst_dsp *dsp = sst_fw->dsp;
+ struct sst_module *module, *mtmp;
+ struct sst_module_runtime *runtime, *rtmp;
+
+ dev_dbg(dsp->dev, "unloading firmware\n");
- dev_dbg(dsp->dev, "unloading firmware\n");
+ mutex_lock(&dsp->mutex);
+
+ /* check module by module */
+ list_for_each_entry_safe(module, mtmp, &dsp->module_list, list) {
+ if (module->sst_fw == sst_fw) {
+
+ /* remove runtime modules */
+ list_for_each_entry_safe(runtime, rtmp, &module->runtime_list, list) {
+
+ block_list_remove(dsp, &runtime->block_list);
+ list_del(&runtime->list);
+ kfree(runtime);
+ }
+
+ /* now remove the module */
+ block_list_remove(dsp, &module->block_list);
+ list_del(&module->list);
+ kfree(module);
+ }
+ }
- mutex_lock(&dsp->mutex);
- list_for_each_entry_safe(module, tmp, &dsp->module_list, list) {
- if (module->sst_fw == sst_fw) {
- block_module_remove(module);
- list_del(&module->list);
- kfree(module);
- }
- }
+ /* remove all scratch blocks */
+ block_list_remove(dsp, &dsp->scratch_block_list);
- mutex_unlock(&dsp->mutex);
+ mutex_unlock(&dsp->mutex);
}
EXPORT_SYMBOL_GPL(sst_fw_unload);
list_del(&sst_fw->list);
mutex_unlock(&dsp->mutex);
- dma_free_coherent(dsp->dma_dev, sst_fw->size, sst_fw->dma_buf,
+ if (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);
}
sst_module->id = template->id;
sst_module->dsp = dsp;
sst_module->sst_fw = sst_fw;
-
- memcpy(&sst_module->s, &template->s, sizeof(struct sst_module_data));
- memcpy(&sst_module->p, &template->p, sizeof(struct sst_module_data));
+ sst_module->scratch_size = template->scratch_size;
+ sst_module->persistent_size = template->persistent_size;
INIT_LIST_HEAD(&sst_module->block_list);
+ INIT_LIST_HEAD(&sst_module->runtime_list);
mutex_lock(&dsp->mutex);
list_add(&sst_module->list, &dsp->module_list);
}
EXPORT_SYMBOL_GPL(sst_module_free);
-static struct sst_mem_block *find_block(struct sst_dsp *dsp, int type,
- u32 offset)
+struct sst_module_runtime *sst_module_runtime_new(struct sst_module *module,
+ int id, void *private)
+{
+ struct sst_dsp *dsp = module->dsp;
+ struct sst_module_runtime *runtime;
+
+ runtime = kzalloc(sizeof(*runtime), GFP_KERNEL);
+ if (runtime == NULL)
+ return NULL;
+
+ runtime->id = id;
+ runtime->dsp = dsp;
+ runtime->module = module;
+ INIT_LIST_HEAD(&runtime->block_list);
+
+ mutex_lock(&dsp->mutex);
+ list_add(&runtime->list, &module->runtime_list);
+ mutex_unlock(&dsp->mutex);
+
+ return runtime;
+}
+EXPORT_SYMBOL_GPL(sst_module_runtime_new);
+
+void sst_module_runtime_free(struct sst_module_runtime *runtime)
+{
+ struct sst_dsp *dsp = runtime->dsp;
+
+ mutex_lock(&dsp->mutex);
+ list_del(&runtime->list);
+ mutex_unlock(&dsp->mutex);
+
+ kfree(runtime);
+}
+EXPORT_SYMBOL_GPL(sst_module_runtime_free);
+
+static struct sst_mem_block *find_block(struct sst_dsp *dsp,
+ struct sst_block_allocator *ba)
{
struct sst_mem_block *block;
list_for_each_entry(block, &dsp->free_block_list, list) {
- if (block->type == type && block->offset == offset)
+ if (block->type == ba->type && block->offset == ba->offset)
return block;
}
return NULL;
}
-static int block_alloc_contiguous(struct sst_module *module,
- struct sst_module_data *data, u32 offset, int size)
+/* Block allocator must be on block boundary */
+static int block_alloc_contiguous(struct sst_dsp *dsp,
+ struct sst_block_allocator *ba, struct list_head *block_list)
{
struct list_head tmp = LIST_HEAD_INIT(tmp);
- struct sst_dsp *dsp = module->dsp;
struct sst_mem_block *block;
+ u32 block_start = SST_HSW_BLOCK_ANY;
+ int size = ba->size, offset = ba->offset;
- while (size > 0) {
- block = find_block(dsp, data->type, offset);
+ while (ba->size > 0) {
+
+ block = find_block(dsp, ba);
if (!block) {
list_splice(&tmp, &dsp->free_block_list);
+
+ ba->size = size;
+ ba->offset = offset;
return -ENOMEM;
}
list_move_tail(&block->list, &tmp);
- offset += block->size;
- size -= block->size;
+ ba->offset += block->size;
+ ba->size -= block->size;
}
+ ba->size = size;
+ ba->offset = offset;
+
+ list_for_each_entry(block, &tmp, list) {
+
+ if (block->offset < block_start)
+ block_start = block->offset;
+
+ list_add(&block->module_list, block_list);
- list_for_each_entry(block, &tmp, list)
- list_add(&block->module_list, &module->block_list);
+ dev_dbg(dsp->dev, "block allocated %d:%d at offset 0x%x\n",
+ block->type, block->index, block->offset);
+ }
list_splice(&tmp, &dsp->used_block_list);
return 0;
}
-/* allocate free DSP blocks for module data - callers hold locks */
-static int block_alloc(struct sst_module *module,
- struct sst_module_data *data)
+/* allocate first free DSP blocks for data - callers hold locks */
+static int block_alloc(struct sst_dsp *dsp, struct sst_block_allocator *ba,
+ struct list_head *block_list)
{
- struct sst_dsp *dsp = module->dsp;
struct sst_mem_block *block, *tmp;
int ret = 0;
- if (data->size == 0)
+ if (ba->size == 0)
return 0;
/* find first free whole blocks that can hold module */
list_for_each_entry_safe(block, tmp, &dsp->free_block_list, list) {
/* ignore blocks with wrong type */
- if (block->type != data->type)
+ if (block->type != ba->type)
continue;
- if (data->size > block->size)
+ if (ba->size > block->size)
continue;
- data->offset = block->offset;
- block->data_type = data->data_type;
- block->bytes_used = data->size % block->size;
- list_add(&block->module_list, &module->block_list);
+ ba->offset = block->offset;
+ block->bytes_used = ba->size % block->size;
+ list_add(&block->module_list, block_list);
list_move(&block->list, &dsp->used_block_list);
- dev_dbg(dsp->dev, " *module %d added block %d:%d\n",
- module->id, block->type, block->index);
+ dev_dbg(dsp->dev, "block allocated %d:%d at offset 0x%x\n",
+ block->type, block->index, block->offset);
return 0;
}
list_for_each_entry_safe(block, tmp, &dsp->free_block_list, list) {
/* ignore blocks with wrong type */
- if (block->type != data->type)
+ if (block->type != ba->type)
continue;
/* do we span > 1 blocks */
- if (data->size > block->size) {
- ret = block_alloc_contiguous(module, data,
- block->offset, data->size);
+ if (ba->size > block->size) {
+
+ /* align ba to block boundary */
+ ba->offset = block->offset;
+
+ ret = block_alloc_contiguous(dsp, ba, block_list);
if (ret == 0)
return ret;
+
}
}
return -ENOMEM;
}
-/* remove module from memory - callers hold locks */
-static void block_module_remove(struct sst_module *module)
+int sst_alloc_blocks(struct sst_dsp *dsp, struct sst_block_allocator *ba,
+ struct list_head *block_list)
{
- struct sst_mem_block *block, *tmp;
- struct sst_dsp *dsp = module->dsp;
- int err;
+ int ret;
- /* disable each block */
- list_for_each_entry(block, &module->block_list, module_list) {
+ dev_dbg(dsp->dev, "block request 0x%x bytes at offset 0x%x type %d\n",
+ ba->size, ba->offset, ba->type);
- if (block->ops && block->ops->disable) {
- err = block->ops->disable(block);
- if (err < 0)
- dev_err(dsp->dev,
- "error: cant disable block %d:%d\n",
- block->type, block->index);
- }
- }
+ mutex_lock(&dsp->mutex);
- /* mark each block as free */
- list_for_each_entry_safe(block, tmp, &module->block_list, module_list) {
- list_del(&block->module_list);
- list_move(&block->list, &dsp->free_block_list);
+ ret = block_alloc(dsp, ba, block_list);
+ if (ret < 0) {
+ dev_err(dsp->dev, "error: can't alloc blocks %d\n", ret);
+ goto out;
}
-}
-/* prepare the memory block to receive data from host - callers hold locks */
-static int block_module_prepare(struct sst_module *module)
-{
- struct sst_mem_block *block;
- int ret = 0;
-
- /* enable each block so that's it'e ready for module P/S data */
- list_for_each_entry(block, &module->block_list, module_list) {
+ /* prepare DSP blocks for module usage */
+ ret = block_list_prepare(dsp, block_list);
+ if (ret < 0)
+ dev_err(dsp->dev, "error: prepare failed\n");
- if (block->ops && block->ops->enable) {
- ret = block->ops->enable(block);
- if (ret < 0) {
- dev_err(module->dsp->dev,
- "error: cant disable block %d:%d\n",
- block->type, block->index);
- goto err;
- }
- }
- }
+out:
+ mutex_unlock(&dsp->mutex);
return ret;
+}
+EXPORT_SYMBOL_GPL(sst_alloc_blocks);
-err:
- list_for_each_entry(block, &module->block_list, module_list) {
- if (block->ops && block->ops->disable)
- block->ops->disable(block);
- }
- return ret;
+int sst_free_blocks(struct sst_dsp *dsp, struct list_head *block_list)
+{
+ mutex_lock(&dsp->mutex);
+ block_list_remove(dsp, block_list);
+ mutex_unlock(&dsp->mutex);
+ return 0;
}
+EXPORT_SYMBOL_GPL(sst_free_blocks);
/* allocate memory blocks for static module addresses - callers hold locks */
-static int block_alloc_fixed(struct sst_module *module,
- struct sst_module_data *data)
+static int block_alloc_fixed(struct sst_dsp *dsp, struct sst_block_allocator *ba,
+ struct list_head *block_list)
{
- struct sst_dsp *dsp = module->dsp;
struct sst_mem_block *block, *tmp;
- u32 end = data->offset + data->size, block_end;
+ u32 end = ba->offset + ba->size, block_end;
int err;
/* only IRAM/DRAM blocks are managed */
- if (data->type != SST_MEM_IRAM && data->type != SST_MEM_DRAM)
+ if (ba->type != SST_MEM_IRAM && ba->type != SST_MEM_DRAM)
return 0;
/* are blocks already attached to this module */
- list_for_each_entry_safe(block, tmp, &module->block_list, module_list) {
+ list_for_each_entry_safe(block, tmp, block_list, module_list) {
- /* force compacting mem blocks of the same data_type */
- if (block->data_type != data->data_type)
+ /* ignore blocks with wrong type */
+ if (block->type != ba->type)
continue;
block_end = block->offset + block->size;
/* find block that holds section */
- if (data->offset >= block->offset && end < block_end)
+ if (ba->offset >= block->offset && end <= block_end)
return 0;
/* does block span more than 1 section */
- if (data->offset >= block->offset && data->offset < block_end) {
+ if (ba->offset >= block->offset && ba->offset < block_end) {
- err = block_alloc_contiguous(module, data,
- block->offset + block->size,
- data->size - block->size);
+ /* align ba to block boundary */
+ ba->size -= block_end - ba->offset;
+ ba->offset = block_end;
+ err = block_alloc_contiguous(dsp, ba, block_list);
if (err < 0)
return -ENOMEM;
list_for_each_entry_safe(block, tmp, &dsp->free_block_list, list) {
block_end = block->offset + block->size;
+ /* ignore blocks with wrong type */
+ if (block->type != ba->type)
+ continue;
+
/* find block that holds section */
- if (data->offset >= block->offset && end < block_end) {
+ if (ba->offset >= block->offset && end <= block_end) {
/* add block */
- block->data_type = data->data_type;
list_move(&block->list, &dsp->used_block_list);
- list_add(&block->module_list, &module->block_list);
+ list_add(&block->module_list, block_list);
+ dev_dbg(dsp->dev, "block allocated %d:%d at offset 0x%x\n",
+ block->type, block->index, block->offset);
return 0;
}
/* does block span more than 1 section */
- if (data->offset >= block->offset && data->offset < block_end) {
+ if (ba->offset >= block->offset && ba->offset < block_end) {
- err = block_alloc_contiguous(module, data,
- block->offset, data->size);
+ /* align ba to block boundary */
+ ba->offset = block->offset;
+
+ err = block_alloc_contiguous(dsp, ba, block_list);
if (err < 0)
return -ENOMEM;
return 0;
}
-
}
return -ENOMEM;
}
/* Load fixed module data into DSP memory blocks */
-int sst_module_insert_fixed_block(struct sst_module *module,
- struct sst_module_data *data)
+int sst_module_alloc_blocks(struct sst_module *module)
{
struct sst_dsp *dsp = module->dsp;
+ struct sst_fw *sst_fw = module->sst_fw;
+ struct sst_block_allocator ba;
int ret;
+ ba.size = module->size;
+ ba.type = module->type;
+ ba.offset = module->offset;
+
+ dev_dbg(dsp->dev, "block request 0x%x bytes at offset 0x%x type %d\n",
+ ba.size, ba.offset, ba.type);
+
mutex_lock(&dsp->mutex);
/* alloc blocks that includes this section */
- ret = block_alloc_fixed(module, data);
+ ret = block_alloc_fixed(dsp, &ba, &module->block_list);
if (ret < 0) {
dev_err(dsp->dev,
"error: no free blocks for section at offset 0x%x size 0x%x\n",
- data->offset, data->size);
+ module->offset, module->size);
mutex_unlock(&dsp->mutex);
return -ENOMEM;
}
/* prepare DSP blocks for module copy */
- ret = block_module_prepare(module);
+ ret = block_list_prepare(dsp, &module->block_list);
if (ret < 0) {
dev_err(dsp->dev, "error: fw module prepare failed\n");
goto err;
}
/* copy partial module data to blocks */
- sst_memcpy32(dsp->addr.lpe + data->offset, data->data, data->size);
+ if (dsp->fw_use_dma) {
+ ret = sst_dsp_dma_copyto(dsp,
+ dsp->addr.lpe_base + module->offset,
+ sst_fw->dmable_fw_paddr + module->data_offset,
+ module->size);
+ if (ret < 0) {
+ dev_err(dsp->dev, "error: module copy failed\n");
+ goto err;
+ }
+ } else
+ sst_memcpy32(dsp->addr.lpe + module->offset, module->data,
+ module->size);
mutex_unlock(&dsp->mutex);
return ret;
err:
- block_module_remove(module);
+ block_list_remove(dsp, &module->block_list);
mutex_unlock(&dsp->mutex);
return ret;
}
-EXPORT_SYMBOL_GPL(sst_module_insert_fixed_block);
+EXPORT_SYMBOL_GPL(sst_module_alloc_blocks);
/* Unload entire module from DSP memory */
-int sst_block_module_remove(struct sst_module *module)
+int sst_module_free_blocks(struct sst_module *module)
{
struct sst_dsp *dsp = module->dsp;
mutex_lock(&dsp->mutex);
- block_module_remove(module);
+ block_list_remove(dsp, &module->block_list);
+ mutex_unlock(&dsp->mutex);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(sst_module_free_blocks);
+
+int sst_module_runtime_alloc_blocks(struct sst_module_runtime *runtime,
+ int offset)
+{
+ struct sst_dsp *dsp = runtime->dsp;
+ struct sst_module *module = runtime->module;
+ struct sst_block_allocator ba;
+ int ret;
+
+ if (module->persistent_size == 0)
+ return 0;
+
+ ba.size = module->persistent_size;
+ ba.type = SST_MEM_DRAM;
+
+ mutex_lock(&dsp->mutex);
+
+ /* do we need to allocate at a fixed address ? */
+ if (offset != 0) {
+
+ ba.offset = offset;
+
+ dev_dbg(dsp->dev, "persistent fixed block request 0x%x bytes type %d offset 0x%x\n",
+ ba.size, ba.type, ba.offset);
+
+ /* alloc blocks that includes this section */
+ ret = block_alloc_fixed(dsp, &ba, &runtime->block_list);
+
+ } else {
+ dev_dbg(dsp->dev, "persistent block request 0x%x bytes type %d\n",
+ ba.size, ba.type);
+
+ /* alloc blocks that includes this section */
+ ret = block_alloc(dsp, &ba, &runtime->block_list);
+ }
+ if (ret < 0) {
+ dev_err(dsp->dev,
+ "error: no free blocks for runtime module size 0x%x\n",
+ module->persistent_size);
+ mutex_unlock(&dsp->mutex);
+ return -ENOMEM;
+ }
+ runtime->persistent_offset = ba.offset;
+
+ /* prepare DSP blocks for module copy */
+ ret = block_list_prepare(dsp, &runtime->block_list);
+ if (ret < 0) {
+ dev_err(dsp->dev, "error: runtime block prepare failed\n");
+ goto err;
+ }
+
+ mutex_unlock(&dsp->mutex);
+ return ret;
+
+err:
+ block_list_remove(dsp, &module->block_list);
+ mutex_unlock(&dsp->mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(sst_module_runtime_alloc_blocks);
+
+int sst_module_runtime_free_blocks(struct sst_module_runtime *runtime)
+{
+ struct sst_dsp *dsp = runtime->dsp;
+
+ mutex_lock(&dsp->mutex);
+ block_list_remove(dsp, &runtime->block_list);
mutex_unlock(&dsp->mutex);
return 0;
}
-EXPORT_SYMBOL_GPL(sst_block_module_remove);
+EXPORT_SYMBOL_GPL(sst_module_runtime_free_blocks);
+
+int sst_module_runtime_save(struct sst_module_runtime *runtime,
+ struct sst_module_runtime_context *context)
+{
+ struct sst_dsp *dsp = runtime->dsp;
+ struct sst_module *module = runtime->module;
+ int ret = 0;
+
+ dev_dbg(dsp->dev, "saving runtime %d memory at 0x%x size 0x%x\n",
+ runtime->id, runtime->persistent_offset,
+ module->persistent_size);
+
+ context->buffer = dma_alloc_coherent(dsp->dma_dev,
+ module->persistent_size,
+ &context->dma_buffer, GFP_DMA | GFP_KERNEL);
+ if (!context->buffer) {
+ dev_err(dsp->dev, "error: DMA context alloc failed\n");
+ return -ENOMEM;
+ }
+
+ mutex_lock(&dsp->mutex);
+
+ if (dsp->fw_use_dma) {
+
+ ret = sst_dsp_dma_get_channel(dsp, 0);
+ if (ret < 0)
+ goto err;
+
+ ret = sst_dsp_dma_copyfrom(dsp, context->dma_buffer,
+ dsp->addr.lpe_base + runtime->persistent_offset,
+ module->persistent_size);
+ sst_dsp_dma_put_channel(dsp);
+ if (ret < 0) {
+ dev_err(dsp->dev, "error: context copy failed\n");
+ goto err;
+ }
+ } else
+ sst_memcpy32(context->buffer, dsp->addr.lpe +
+ runtime->persistent_offset,
+ module->persistent_size);
+
+err:
+ mutex_unlock(&dsp->mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(sst_module_runtime_save);
+
+int sst_module_runtime_restore(struct sst_module_runtime *runtime,
+ struct sst_module_runtime_context *context)
+{
+ struct sst_dsp *dsp = runtime->dsp;
+ struct sst_module *module = runtime->module;
+ int ret = 0;
+
+ dev_dbg(dsp->dev, "restoring runtime %d memory at 0x%x size 0x%x\n",
+ runtime->id, runtime->persistent_offset,
+ module->persistent_size);
+
+ mutex_lock(&dsp->mutex);
+
+ if (!context->buffer) {
+ dev_info(dsp->dev, "no context buffer need to restore!\n");
+ goto err;
+ }
+
+ if (dsp->fw_use_dma) {
+
+ ret = sst_dsp_dma_get_channel(dsp, 0);
+ if (ret < 0)
+ goto err;
+
+ ret = sst_dsp_dma_copyto(dsp,
+ dsp->addr.lpe_base + runtime->persistent_offset,
+ context->dma_buffer, module->persistent_size);
+ sst_dsp_dma_put_channel(dsp);
+ if (ret < 0) {
+ dev_err(dsp->dev, "error: module copy failed\n");
+ goto err;
+ }
+ } else
+ sst_memcpy32(dsp->addr.lpe + runtime->persistent_offset,
+ context->buffer, module->persistent_size);
+
+ dma_free_coherent(dsp->dma_dev, module->persistent_size,
+ context->buffer, context->dma_buffer);
+ context->buffer = NULL;
+
+err:
+ mutex_unlock(&dsp->mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(sst_module_runtime_restore);
/* register a DSP memory block for use with FW based modules */
struct sst_mem_block *sst_mem_block_register(struct sst_dsp *dsp, u32 offset,
EXPORT_SYMBOL_GPL(sst_mem_block_unregister_all);
/* allocate scratch buffer blocks */
-struct sst_module *sst_mem_block_alloc_scratch(struct sst_dsp *dsp)
+int sst_block_alloc_scratch(struct sst_dsp *dsp)
{
- struct sst_module *sst_module, *scratch;
- struct sst_mem_block *block, *tmp;
- u32 block_size;
- int ret = 0;
-
- scratch = kzalloc(sizeof(struct sst_module), GFP_KERNEL);
- if (scratch == NULL)
- return NULL;
+ struct sst_module *module;
+ struct sst_block_allocator ba;
+ int ret;
mutex_lock(&dsp->mutex);
/* calculate required scratch size */
- list_for_each_entry(sst_module, &dsp->module_list, list) {
- if (scratch->s.size < sst_module->s.size)
- scratch->s.size = sst_module->s.size;
+ dsp->scratch_size = 0;
+ list_for_each_entry(module, &dsp->module_list, list) {
+ dev_dbg(dsp->dev, "module %d scratch req 0x%x bytes\n",
+ module->id, module->scratch_size);
+ if (dsp->scratch_size < module->scratch_size)
+ dsp->scratch_size = module->scratch_size;
}
- dev_dbg(dsp->dev, "scratch buffer required is %d bytes\n",
- scratch->s.size);
-
- /* init scratch module */
- scratch->dsp = dsp;
- scratch->s.type = SST_MEM_DRAM;
- scratch->s.data_type = SST_DATA_S;
- INIT_LIST_HEAD(&scratch->block_list);
+ dev_dbg(dsp->dev, "scratch buffer required is 0x%x bytes\n",
+ dsp->scratch_size);
- /* check free blocks before looking at used blocks for space */
- if (!list_empty(&dsp->free_block_list))
- block = list_first_entry(&dsp->free_block_list,
- struct sst_mem_block, list);
- else
- block = list_first_entry(&dsp->used_block_list,
- struct sst_mem_block, list);
- block_size = block->size;
+ if (dsp->scratch_size == 0) {
+ dev_info(dsp->dev, "no modules need scratch buffer\n");
+ mutex_unlock(&dsp->mutex);
+ return 0;
+ }
/* allocate blocks for module scratch buffers */
dev_dbg(dsp->dev, "allocating scratch blocks\n");
- ret = block_alloc(scratch, &scratch->s);
+
+ ba.size = dsp->scratch_size;
+ ba.type = SST_MEM_DRAM;
+
+ /* do we need to allocate at fixed offset */
+ if (dsp->scratch_offset != 0) {
+
+ dev_dbg(dsp->dev, "block request 0x%x bytes type %d at 0x%x\n",
+ ba.size, ba.type, ba.offset);
+
+ ba.offset = dsp->scratch_offset;
+
+ /* alloc blocks that includes this section */
+ ret = block_alloc_fixed(dsp, &ba, &dsp->scratch_block_list);
+
+ } else {
+ dev_dbg(dsp->dev, "block request 0x%x bytes type %d\n",
+ ba.size, ba.type);
+
+ ba.offset = 0;
+ ret = block_alloc(dsp, &ba, &dsp->scratch_block_list);
+ }
if (ret < 0) {
dev_err(dsp->dev, "error: can't alloc scratch blocks\n");
- goto err;
+ mutex_unlock(&dsp->mutex);
+ return ret;
}
- /* assign the same offset of scratch to each module */
- list_for_each_entry(sst_module, &dsp->module_list, list)
- sst_module->s.offset = scratch->s.offset;
-
- mutex_unlock(&dsp->mutex);
- return scratch;
+ ret = block_list_prepare(dsp, &dsp->scratch_block_list);
+ if (ret < 0) {
+ dev_err(dsp->dev, "error: scratch block prepare failed\n");
+ return ret;
+ }
-err:
- list_for_each_entry_safe(block, tmp, &scratch->block_list, module_list)
- list_del(&block->module_list);
+ /* assign the same offset of scratch to each module */
+ dsp->scratch_offset = ba.offset;
mutex_unlock(&dsp->mutex);
- return NULL;
+ return dsp->scratch_size;
}
-EXPORT_SYMBOL_GPL(sst_mem_block_alloc_scratch);
+EXPORT_SYMBOL_GPL(sst_block_alloc_scratch);
/* free all scratch blocks */
-void sst_mem_block_free_scratch(struct sst_dsp *dsp,
- struct sst_module *scratch)
+void sst_block_free_scratch(struct sst_dsp *dsp)
{
- struct sst_mem_block *block, *tmp;
-
mutex_lock(&dsp->mutex);
-
- list_for_each_entry_safe(block, tmp, &scratch->block_list, module_list)
- list_del(&block->module_list);
-
+ block_list_remove(dsp, &dsp->scratch_block_list);
mutex_unlock(&dsp->mutex);
}
-EXPORT_SYMBOL_GPL(sst_mem_block_free_scratch);
+EXPORT_SYMBOL_GPL(sst_block_free_scratch);
/* get a module from it's unique ID */
struct sst_module *sst_module_get_from_id(struct sst_dsp *dsp, u32 id)
return NULL;
}
EXPORT_SYMBOL_GPL(sst_module_get_from_id);
+
+struct sst_module_runtime *sst_module_runtime_get_from_id(
+ struct sst_module *module, u32 id)
+{
+ struct sst_module_runtime *runtime;
+ struct sst_dsp *dsp = module->dsp;
+
+ mutex_lock(&dsp->mutex);
+
+ list_for_each_entry(runtime, &module->runtime_list, list) {
+ if (runtime->id == id) {
+ mutex_unlock(&dsp->mutex);
+ return runtime;
+ }
+ }
+
+ mutex_unlock(&dsp->mutex);
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(sst_module_runtime_get_from_id);
+
+/* returns block address in DSP address space */
+u32 sst_dsp_get_offset(struct sst_dsp *dsp, u32 offset,
+ enum sst_mem_type type)
+{
+ switch (type) {
+ case SST_MEM_IRAM:
+ return offset - dsp->addr.iram_offset +
+ dsp->addr.dsp_iram_offset;
+ case SST_MEM_DRAM:
+ return offset - dsp->addr.dram_offset +
+ dsp->addr.dsp_dram_offset;
+ default:
+ return 0;
+ }
+}
+EXPORT_SYMBOL_GPL(sst_dsp_get_offset);
projects / platform / kernel / linux-rpi.git / commitdiff