From: Srinivas Kandagatla srinivas.kandagatla@linaro.org
This patch adds support to memory map and unmap regions commands in q6asm module.
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/qcom/qdsp6/q6asm.c | 343 ++++++++++++++++++++++++++++++++++++++++++- sound/soc/qcom/qdsp6/q6asm.h | 5 + 2 files changed, 347 insertions(+), 1 deletion(-)
diff --git a/sound/soc/qcom/qdsp6/q6asm.c b/sound/soc/qcom/qdsp6/q6asm.c index 9cc583afef4d..4be92441f524 100644 --- a/sound/soc/qcom/qdsp6/q6asm.c +++ b/sound/soc/qcom/qdsp6/q6asm.c @@ -14,9 +14,46 @@ #include "q6asm.h" #include "common.h"
+#define ASM_CMD_SHARED_MEM_MAP_REGIONS 0x00010D92 +#define ASM_CMDRSP_SHARED_MEM_MAP_REGIONS 0x00010D93 +#define ASM_CMD_SHARED_MEM_UNMAP_REGIONS 0x00010D94 + #define TUN_READ_IO_MODE 0x0004 /* tunnel read write mode */ #define SYNC_IO_MODE 0x0001 #define ASYNC_IO_MODE 0x0002 +#define ASM_SHIFT_GAPLESS_MODE_FLAG 31 +#define ADSP_MEMORY_MAP_SHMEM8_4K_POOL 3 + +struct avs_cmd_shared_mem_map_regions { + struct apr_hdr hdr; + u16 mem_pool_id; + u16 num_regions; + u32 property_flag; +} __packed; + +struct avs_shared_map_region_payload { + u32 shm_addr_lsw; + u32 shm_addr_msw; + u32 mem_size_bytes; +} __packed; + +struct avs_cmd_shared_mem_unmap_regions { + struct apr_hdr hdr; + u32 mem_map_handle; +} __packed; + +struct audio_buffer { + dma_addr_t phys; + uint32_t used; + uint32_t size; /* size of buffer */ +}; + +struct audio_port_data { + struct audio_buffer *buf; + uint32_t max_buf_cnt; + uint32_t dsp_buf; + uint32_t mem_map_handle; +};
struct audio_client { int session; @@ -27,6 +64,8 @@ struct audio_client { uint64_t time_stamp; struct apr_device *adev; struct mutex cmd_lock; + /* idx:1 out port, 0: in port */ + struct audio_port_data port[2]; wait_queue_head_t cmd_wait; int perf_mode; int stream_id; @@ -86,6 +125,260 @@ static void q6asm_session_free(struct audio_client *ac) mutex_unlock(&a->session_lock); }
+static inline void q6asm_add_mmaphdr(struct audio_client *ac, + struct apr_hdr *hdr, u32 pkt_size, + bool cmd_flg, u32 token) +{ + hdr->hdr_field = APR_SEQ_CMD_HDR_FIELD; + hdr->src_port = 0; + hdr->dest_port = 0; + hdr->pkt_size = pkt_size; + if (cmd_flg) + hdr->token = token; +} + +static inline void q6asm_add_hdr(struct audio_client *ac, struct apr_hdr *hdr, + uint32_t pkt_size, bool cmd_flg, + uint32_t stream_id) +{ + hdr->hdr_field = APR_SEQ_CMD_HDR_FIELD; + hdr->src_svc = ac->adev->svc_id; + hdr->src_domain = APR_DOMAIN_APPS; + hdr->dest_svc = APR_SVC_ASM; + hdr->dest_domain = APR_DOMAIN_ADSP; + hdr->src_port = ((ac->session << 8) & 0xFF00) | (stream_id); + hdr->dest_port = ((ac->session << 8) & 0xFF00) | (stream_id); + hdr->pkt_size = pkt_size; + if (cmd_flg) + hdr->token = ac->session; +} + +static int __q6asm_memory_unmap(struct audio_client *ac, + phys_addr_t buf_add, int dir) +{ + struct avs_cmd_shared_mem_unmap_regions mem_unmap; + struct q6asm *a = dev_get_drvdata(ac->dev->parent); + int rc; + + if (!a) + return -ENODEV; + + q6asm_add_mmaphdr(ac, &mem_unmap.hdr, sizeof(mem_unmap), true, + ((ac->session << 8) | dir)); + a->mem_state = -1; + + mem_unmap.hdr.opcode = ASM_CMD_SHARED_MEM_UNMAP_REGIONS; + mem_unmap.mem_map_handle = ac->port[dir].mem_map_handle; + + if (mem_unmap.mem_map_handle == 0) { + dev_err(ac->dev, "invalid mem handle\n"); + return -EINVAL; + } + + rc = apr_send_pkt(a->adev, (uint32_t *) &mem_unmap); + if (rc < 0) + return rc; + + rc = wait_event_timeout(a->mem_wait, (a->mem_state >= 0), + 5 * HZ); + if (!rc) { + dev_err(ac->dev, "CMD timeout for memory_unmap 0x%x\n", + mem_unmap.mem_map_handle); + return -ETIMEDOUT; + } else if (a->mem_state > 0) { + return adsp_err_get_lnx_err_code(a->mem_state); + } + ac->port[dir].mem_map_handle = 0; + + return 0; +} + +/** + * q6asm_unmap_memory_regions() - unmap memory regions in the dsp. + * + * @dir: direction of audio stream + * @ac: audio client instanace + * + * Return: Will be an negative value on failure or zero on success + */ +int q6asm_unmap_memory_regions(unsigned int dir, struct audio_client *ac) +{ + struct audio_port_data *port; + int cnt = 0; + int rc = 0; + + mutex_lock(&ac->cmd_lock); + port = &ac->port[dir]; + if (!port->buf) { + mutex_unlock(&ac->cmd_lock); + return 0; + } + cnt = port->max_buf_cnt - 1; + if (cnt >= 0) { + rc = __q6asm_memory_unmap(ac, port->buf[dir].phys, dir); + if (rc < 0) { + dev_err(ac->dev, "%s: Memory_unmap_regions failed %d\n", + __func__, rc); + mutex_unlock(&ac->cmd_lock); + return rc; + } + } + + port->max_buf_cnt = 0; + kfree(port->buf); + port->buf = NULL; + mutex_unlock(&ac->cmd_lock); + + return 0; +} +EXPORT_SYMBOL_GPL(q6asm_unmap_memory_regions); + +static int __q6asm_memory_map_regions(struct audio_client *ac, int dir, + uint32_t period_sz, uint32_t periods, + bool is_contiguous) +{ + struct avs_cmd_shared_mem_map_regions *mmap_regions = NULL; + struct avs_shared_map_region_payload *mregions = NULL; + struct q6asm *a = dev_get_drvdata(ac->dev->parent); + struct audio_port_data *port = NULL; + struct audio_buffer *ab = NULL; + void *mmap_region_cmd = NULL; + void *payload = NULL; + int rc = 0; + int i = 0; + int cmd_size = 0; + uint32_t num_regions; + uint32_t buf_sz; + + if (!a) + return -ENODEV; + num_regions = is_contiguous ? 1 : periods; + buf_sz = is_contiguous ? (period_sz * periods) : period_sz; + buf_sz = PAGE_ALIGN(buf_sz); + + cmd_size = sizeof(*mmap_regions) + (sizeof(*mregions) * num_regions); + + mmap_region_cmd = kzalloc(cmd_size, GFP_KERNEL); + if (!mmap_region_cmd) + return -ENOMEM; + + mmap_regions = (struct avs_cmd_shared_mem_map_regions *)mmap_region_cmd; + q6asm_add_mmaphdr(ac, &mmap_regions->hdr, cmd_size, true, + ((ac->session << 8) | dir)); + a->mem_state = -1; + + mmap_regions->hdr.opcode = ASM_CMD_SHARED_MEM_MAP_REGIONS; + mmap_regions->mem_pool_id = ADSP_MEMORY_MAP_SHMEM8_4K_POOL; + mmap_regions->num_regions = num_regions; + mmap_regions->property_flag = 0x00; + + payload = ((u8 *) mmap_region_cmd + + sizeof(struct avs_cmd_shared_mem_map_regions)); + + mregions = (struct avs_shared_map_region_payload *)payload; + + ac->port[dir].mem_map_handle = 0; + port = &ac->port[dir]; + + for (i = 0; i < num_regions; i++) { + ab = &port->buf[i]; + mregions->shm_addr_lsw = lower_32_bits(ab->phys); + mregions->shm_addr_msw = upper_32_bits(ab->phys); + mregions->mem_size_bytes = buf_sz; + ++mregions; + } + + rc = apr_send_pkt(a->adev, (uint32_t *) mmap_region_cmd); + if (rc < 0) + goto fail_cmd; + + rc = wait_event_timeout(a->mem_wait, (a->mem_state >= 0), + 5 * HZ); + if (!rc) { + dev_err(ac->dev, "timeout. waited for memory_map\n"); + rc = -ETIMEDOUT; + goto fail_cmd; + } + + if (a->mem_state > 0) { + rc = adsp_err_get_lnx_err_code(a->mem_state); + goto fail_cmd; + } + rc = 0; +fail_cmd: + kfree(mmap_region_cmd); + return rc; +} + +/** + * q6asm_map_memory_regions() - map memory regions in the dsp. + * + * @dir: direction of audio stream + * @ac: audio client instanace + * @phys: physcial address that needs mapping. + * @period_sz: audio period size + * @periods: number of periods + * + * Return: Will be an negative value on failure or zero on success + */ +int q6asm_map_memory_regions(unsigned int dir, struct audio_client *ac, + dma_addr_t phys, + unsigned int period_sz, unsigned int periods) +{ + struct audio_buffer *buf; + int cnt; + int rc; + + if (ac->port[dir].buf) { + dev_err(ac->dev, "Buffer already allocated\n"); + return 0; + } + + mutex_lock(&ac->cmd_lock); + + buf = kzalloc(((sizeof(struct audio_buffer)) * periods), GFP_KERNEL); + if (!buf) { + mutex_unlock(&ac->cmd_lock); + return -ENOMEM; + } + + + ac->port[dir].buf = buf; + + buf[0].phys = phys; + buf[0].used = dir ^ 1; + buf[0].size = period_sz; + cnt = 1; + while (cnt < periods) { + if (period_sz > 0) { + buf[cnt].phys = buf[0].phys + (cnt * period_sz); + buf[cnt].used = dir ^ 1; + buf[cnt].size = period_sz; + } + cnt++; + } + + ac->port[dir].max_buf_cnt = periods; + mutex_unlock(&ac->cmd_lock); + + rc = __q6asm_memory_map_regions(ac, dir, period_sz, periods, 1); + if (rc < 0) { + dev_err(ac->dev, + "CMD Memory_map_regions failed %d for size %d\n", rc, + period_sz); + + + ac->port[dir].max_buf_cnt = 0; + kfree(buf); + ac->port[dir].buf = NULL; + + return rc; + } + + return 0; +} +EXPORT_SYMBOL_GPL(q6asm_map_memory_regions); + /** * q6asm_audio_client_free() - Freee allocated audio client * @@ -117,8 +410,10 @@ static struct audio_client *q6asm_get_audio_client(struct q6asm *a,
static int q6asm_srvc_callback(struct apr_device *adev, struct apr_client_data *data) { - struct q6asm *q6asm = dev_get_drvdata(&adev->dev); + struct q6asm *a, *q6asm = dev_get_drvdata(&adev->dev); struct audio_client *ac = NULL; + struct audio_port_data *port; + uint32_t dir = 0; uint32_t sid = 0; uint32_t *payload;
@@ -135,6 +430,52 @@ static int q6asm_srvc_callback(struct apr_device *adev, struct apr_client_data * return 0; }
+ a = dev_get_drvdata(ac->dev->parent); + if (data->opcode == APR_BASIC_RSP_RESULT) { + switch (payload[0]) { + case ASM_CMD_SHARED_MEM_MAP_REGIONS: + case ASM_CMD_SHARED_MEM_UNMAP_REGIONS: + if (payload[1] != 0) { + dev_err(ac->dev, + "cmd = 0x%x returned error = 0x%x sid:%d\n", + payload[0], payload[1], sid); + a->mem_state = payload[1]; + } else { + a->mem_state = 0; + } + + wake_up(&a->mem_wait); + break; + default: + dev_err(&adev->dev, "command[0x%x] not expecting rsp\n", + payload[0]); + break; + } + return 0; + } + + dir = (data->token & 0x0F); + port = &ac->port[dir]; + + switch (data->opcode) { + case ASM_CMDRSP_SHARED_MEM_MAP_REGIONS:{ + a->mem_state = 0; + ac->port[dir].mem_map_handle = payload[0]; + wake_up(&a->mem_wait); + break; + } + case ASM_CMD_SHARED_MEM_UNMAP_REGIONS:{ + a->mem_state = 0; + ac->port[dir].mem_map_handle = 0; + wake_up(&a->mem_wait); + + break; + } + default: + dev_dbg(&adev->dev, "command[0x%x]success [0x%x]\n", + payload[0], payload[1]); + break; + } if (ac->cb) ac->cb(data->opcode, data->token, data->payload, ac->priv); return 0; diff --git a/sound/soc/qcom/qdsp6/q6asm.h b/sound/soc/qcom/qdsp6/q6asm.h index 7a8a9039fd89..e1409c368600 100644 --- a/sound/soc/qcom/qdsp6/q6asm.h +++ b/sound/soc/qcom/qdsp6/q6asm.h @@ -11,4 +11,9 @@ struct audio_client *q6asm_audio_client_alloc(struct device *dev, app_cb cb, void *priv); void q6asm_audio_client_free(struct audio_client *ac); int q6asm_get_session_id(struct audio_client *ac); +int q6asm_map_memory_regions(unsigned int dir, + struct audio_client *ac, + dma_addr_t phys, + unsigned int bufsz, unsigned int bufcnt); +int q6asm_unmap_memory_regions(unsigned int dir, struct audio_client *ac); #endif /* __Q6_ASM_H__ */