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author | Lucas Stach <l.stach@pengutronix.de> | 2018-11-05 16:25:05 +0100 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-11-23 11:28:51 +0100 |
commit | 68d66a931079ac8badc0b224491dd57c5eacc4f4 (patch) | |
tree | b265956ba70f46a1c8971f91dde3f5cbc12c064b /drivers/media/platform | |
parent | media: coda: remove unused instances list (diff) | |
download | linux-68d66a931079ac8badc0b224491dd57c5eacc4f4.tar.xz linux-68d66a931079ac8badc0b224491dd57c5eacc4f4.zip |
media: coda: don't disable IRQs across buffer meta handling
The CODA driver uses threaded IRQs only, so there is nothing happening
in hardirq context that could interfere with the buffer meta handling.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/platform')
-rw-r--r-- | drivers/media/platform/coda/coda-bit.c | 19 | ||||
-rw-r--r-- | drivers/media/platform/coda/coda-common.c | 5 |
2 files changed, 9 insertions, 15 deletions
diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c index ee9d2a402ccd..348b17140715 100644 --- a/drivers/media/platform/coda/coda-bit.c +++ b/drivers/media/platform/coda/coda-bit.c @@ -253,7 +253,6 @@ void coda_fill_bitstream(struct coda_ctx *ctx, struct list_head *buffer_list) { struct vb2_v4l2_buffer *src_buf; struct coda_buffer_meta *meta; - unsigned long flags; u32 start; if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) @@ -332,13 +331,11 @@ void coda_fill_bitstream(struct coda_ctx *ctx, struct list_head *buffer_list) meta->timestamp = src_buf->vb2_buf.timestamp; meta->start = start; meta->end = ctx->bitstream_fifo.kfifo.in; - spin_lock_irqsave(&ctx->buffer_meta_lock, - flags); + spin_lock(&ctx->buffer_meta_lock); list_add_tail(&meta->list, &ctx->buffer_meta_list); ctx->num_metas++; - spin_unlock_irqrestore(&ctx->buffer_meta_lock, - flags); + spin_unlock(&ctx->buffer_meta_lock); trace_coda_bit_queue(ctx, src_buf, meta); } @@ -1894,7 +1891,6 @@ static int coda_prepare_decode(struct coda_ctx *ctx) struct coda_dev *dev = ctx->dev; struct coda_q_data *q_data_dst; struct coda_buffer_meta *meta; - unsigned long flags; u32 rot_mode = 0; u32 reg_addr, reg_stride; @@ -1988,7 +1984,7 @@ static int coda_prepare_decode(struct coda_ctx *ctx) coda_write(dev, ctx->iram_info.axi_sram_use, CODA7_REG_BIT_AXI_SRAM_USE); - spin_lock_irqsave(&ctx->buffer_meta_lock, flags); + spin_lock(&ctx->buffer_meta_lock); meta = list_first_entry_or_null(&ctx->buffer_meta_list, struct coda_buffer_meta, list); @@ -2007,7 +2003,7 @@ static int coda_prepare_decode(struct coda_ctx *ctx) kfifo_in(&ctx->bitstream_fifo, buf, pad); } } - spin_unlock_irqrestore(&ctx->buffer_meta_lock, flags); + spin_unlock(&ctx->buffer_meta_lock); coda_kfifo_sync_to_device_full(ctx); @@ -2029,7 +2025,6 @@ static void coda_finish_decode(struct coda_ctx *ctx) struct vb2_v4l2_buffer *dst_buf; struct coda_buffer_meta *meta; unsigned long payload; - unsigned long flags; int width, height; int decoded_idx; int display_idx; @@ -2161,13 +2156,13 @@ static void coda_finish_decode(struct coda_ctx *ctx) } else { val = coda_read(dev, CODA_RET_DEC_PIC_FRAME_NUM) - 1; val -= ctx->sequence_offset; - spin_lock_irqsave(&ctx->buffer_meta_lock, flags); + spin_lock(&ctx->buffer_meta_lock); if (!list_empty(&ctx->buffer_meta_list)) { meta = list_first_entry(&ctx->buffer_meta_list, struct coda_buffer_meta, list); list_del(&meta->list); ctx->num_metas--; - spin_unlock_irqrestore(&ctx->buffer_meta_lock, flags); + spin_unlock(&ctx->buffer_meta_lock); /* * Clamp counters to 16 bits for comparison, as the HW * counter rolls over at this point for h.264. This @@ -2184,7 +2179,7 @@ static void coda_finish_decode(struct coda_ctx *ctx) ctx->frame_metas[decoded_idx] = *meta; kfree(meta); } else { - spin_unlock_irqrestore(&ctx->buffer_meta_lock, flags); + spin_unlock(&ctx->buffer_meta_lock); v4l2_err(&dev->v4l2_dev, "empty timestamp list!\n"); memset(&ctx->frame_metas[decoded_idx], 0, sizeof(struct coda_buffer_meta)); diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c index d9466c2aea19..5452271cb3a0 100644 --- a/drivers/media/platform/coda/coda-common.c +++ b/drivers/media/platform/coda/coda-common.c @@ -1690,7 +1690,6 @@ static void coda_stop_streaming(struct vb2_queue *q) struct coda_ctx *ctx = vb2_get_drv_priv(q); struct coda_dev *dev = ctx->dev; struct vb2_v4l2_buffer *buf; - unsigned long flags; bool stop; stop = ctx->streamon_out && ctx->streamon_cap; @@ -1725,7 +1724,7 @@ static void coda_stop_streaming(struct vb2_queue *q) queue_work(dev->workqueue, &ctx->seq_end_work); flush_work(&ctx->seq_end_work); } - spin_lock_irqsave(&ctx->buffer_meta_lock, flags); + spin_lock(&ctx->buffer_meta_lock); while (!list_empty(&ctx->buffer_meta_list)) { meta = list_first_entry(&ctx->buffer_meta_list, struct coda_buffer_meta, list); @@ -1733,7 +1732,7 @@ static void coda_stop_streaming(struct vb2_queue *q) kfree(meta); } ctx->num_metas = 0; - spin_unlock_irqrestore(&ctx->buffer_meta_lock, flags); + spin_unlock(&ctx->buffer_meta_lock); kfifo_init(&ctx->bitstream_fifo, ctx->bitstream.vaddr, ctx->bitstream.size); ctx->runcounter = 0; |