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-rw-r--r--drivers/media/platform/coda/coda-bit.c85
-rw-r--r--drivers/media/platform/coda/coda-common.c22
-rw-r--r--drivers/media/platform/coda/coda.h1
3 files changed, 58 insertions, 50 deletions
diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c
index 12b93867e665..5aa8d8774d0c 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -15,6 +15,7 @@
#include <linux/clk.h>
#include <linux/irqreturn.h>
#include <linux/kernel.h>
+#include <linux/log2.h>
#include <linux/platform_device.h>
#include <linux/reset.h>
#include <linux/slab.h>
@@ -36,6 +37,8 @@
#define CODA_DEFAULT_GAMMA 4096
#define CODA9_DEFAULT_GAMMA 24576 /* 0.75 * 32768 */
+static void coda_free_bitstream_buffer(struct coda_ctx *ctx);
+
static inline int coda_is_initialized(struct coda_dev *dev)
{
return coda_read(dev, CODA_REG_BIT_CUR_PC) != 0;
@@ -389,21 +392,7 @@ static int coda_alloc_context_buffers(struct coda_ctx *ctx,
if (dev->devtype->product == CODA_DX6)
return 0;
- if (ctx->psbuf.vaddr) {
- v4l2_err(&dev->v4l2_dev, "psmembuf still allocated\n");
- return -EBUSY;
- }
- if (ctx->slicebuf.vaddr) {
- v4l2_err(&dev->v4l2_dev, "slicebuf still allocated\n");
- return -EBUSY;
- }
- if (ctx->workbuf.vaddr) {
- v4l2_err(&dev->v4l2_dev, "context buffer still allocated\n");
- ret = -EBUSY;
- return -ENOMEM;
- }
-
- if (q_data->fourcc == V4L2_PIX_FMT_H264) {
+ if (!ctx->slicebuf.vaddr && q_data->fourcc == V4L2_PIX_FMT_H264) {
/* worst case slice size */
size = (DIV_ROUND_UP(q_data->width, 16) *
DIV_ROUND_UP(q_data->height, 16)) * 3200 / 8 + 512;
@@ -417,7 +406,7 @@ static int coda_alloc_context_buffers(struct coda_ctx *ctx,
}
}
- if (dev->devtype->product == CODA_7541) {
+ if (!ctx->psbuf.vaddr && dev->devtype->product == CODA_7541) {
ret = coda_alloc_context_buf(ctx, &ctx->psbuf,
CODA7_PS_BUF_SIZE, "psbuf");
if (ret < 0) {
@@ -427,16 +416,19 @@ static int coda_alloc_context_buffers(struct coda_ctx *ctx,
}
}
- size = dev->devtype->workbuf_size;
- if (dev->devtype->product == CODA_960 &&
- q_data->fourcc == V4L2_PIX_FMT_H264)
- size += CODA9_PS_SAVE_SIZE;
- ret = coda_alloc_context_buf(ctx, &ctx->workbuf, size, "workbuf");
- if (ret < 0) {
- v4l2_err(&dev->v4l2_dev,
- "failed to allocate %d byte context buffer",
- ctx->workbuf.size);
- goto err;
+ if (!ctx->workbuf.vaddr) {
+ size = dev->devtype->workbuf_size;
+ if (dev->devtype->product == CODA_960 &&
+ q_data->fourcc == V4L2_PIX_FMT_H264)
+ size += CODA9_PS_SAVE_SIZE;
+ ret = coda_alloc_context_buf(ctx, &ctx->workbuf, size,
+ "workbuf");
+ if (ret < 0) {
+ v4l2_err(&dev->v4l2_dev,
+ "failed to allocate %d byte context buffer",
+ ctx->workbuf.size);
+ goto err;
+ }
}
return 0;
@@ -1337,6 +1329,7 @@ static void coda_bit_release(struct coda_ctx *ctx)
mutex_lock(&ctx->buffer_mutex);
coda_free_framebuffers(ctx);
coda_free_context_buffers(ctx);
+ coda_free_bitstream_buffer(ctx);
mutex_unlock(&ctx->buffer_mutex);
}
@@ -1354,6 +1347,38 @@ const struct coda_context_ops coda_bit_encode_ops = {
* Decoder context operations
*/
+static int coda_alloc_bitstream_buffer(struct coda_ctx *ctx,
+ struct coda_q_data *q_data)
+{
+ if (ctx->bitstream.vaddr)
+ return 0;
+
+ ctx->bitstream.size = roundup_pow_of_two(q_data->sizeimage * 2);
+ ctx->bitstream.vaddr = dma_alloc_writecombine(
+ &ctx->dev->plat_dev->dev, ctx->bitstream.size,
+ &ctx->bitstream.paddr, GFP_KERNEL);
+ if (!ctx->bitstream.vaddr) {
+ v4l2_err(&ctx->dev->v4l2_dev,
+ "failed to allocate bitstream ringbuffer");
+ return -ENOMEM;
+ }
+ kfifo_init(&ctx->bitstream_fifo,
+ ctx->bitstream.vaddr, ctx->bitstream.size);
+
+ return 0;
+}
+
+static void coda_free_bitstream_buffer(struct coda_ctx *ctx)
+{
+ if (ctx->bitstream.vaddr == NULL)
+ return;
+
+ dma_free_writecombine(&ctx->dev->plat_dev->dev, ctx->bitstream.size,
+ ctx->bitstream.vaddr, ctx->bitstream.paddr);
+ ctx->bitstream.vaddr = NULL;
+ kfifo_init(&ctx->bitstream_fifo, NULL, 0);
+}
+
static int coda_decoder_reqbufs(struct coda_ctx *ctx,
struct v4l2_requestbuffers *rb)
{
@@ -1368,7 +1393,13 @@ static int coda_decoder_reqbufs(struct coda_ctx *ctx,
ret = coda_alloc_context_buffers(ctx, q_data_src);
if (ret < 0)
return ret;
+ ret = coda_alloc_bitstream_buffer(ctx, q_data_src);
+ if (ret < 0) {
+ coda_free_context_buffers(ctx);
+ return ret;
+ }
} else {
+ coda_free_bitstream_buffer(ctx);
coda_free_context_buffers(ctx);
}
@@ -1736,7 +1767,7 @@ static void coda_finish_decode(struct coda_ctx *ctx)
* by up to 512 bytes
*/
if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) {
- if (coda_get_bitstream_payload(ctx) >= CODA_MAX_FRAME_SIZE - 512)
+ if (coda_get_bitstream_payload(ctx) >= ctx->bitstream.size - 512)
kfifo_init(&ctx->bitstream_fifo,
ctx->bitstream.vaddr, ctx->bitstream.size);
}
diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
index a8a6c36a1f00..3a852ac6a8c3 100644
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -1723,20 +1723,6 @@ static int coda_open(struct file *file)
goto err_dma_alloc;
}
}
- if (ctx->use_bit && ctx->inst_type == CODA_INST_DECODER) {
- ctx->bitstream.size = CODA_MAX_FRAME_SIZE;
- ctx->bitstream.vaddr = dma_alloc_writecombine(
- &dev->plat_dev->dev, ctx->bitstream.size,
- &ctx->bitstream.paddr, GFP_KERNEL);
- if (!ctx->bitstream.vaddr) {
- v4l2_err(&dev->v4l2_dev,
- "failed to allocate bitstream ringbuffer");
- ret = -ENOMEM;
- goto err_dma_writecombine;
- }
- }
- kfifo_init(&ctx->bitstream_fifo,
- ctx->bitstream.vaddr, ctx->bitstream.size);
mutex_init(&ctx->bitstream_mutex);
mutex_init(&ctx->buffer_mutex);
INIT_LIST_HEAD(&ctx->buffer_meta_list);
@@ -1750,10 +1736,6 @@ static int coda_open(struct file *file)
return 0;
-err_dma_writecombine:
- if (ctx->dev->devtype->product == CODA_DX6)
- coda_free_aux_buf(dev, &ctx->workbuf);
- coda_free_aux_buf(dev, &ctx->parabuf);
err_dma_alloc:
v4l2_ctrl_handler_free(&ctx->ctrls);
err_ctrls_setup:
@@ -1798,10 +1780,6 @@ static int coda_release(struct file *file)
list_del(&ctx->list);
coda_unlock(ctx);
- if (ctx->bitstream.vaddr) {
- dma_free_writecombine(&dev->plat_dev->dev, ctx->bitstream.size,
- ctx->bitstream.vaddr, ctx->bitstream.paddr);
- }
if (ctx->dev->devtype->product == CODA_DX6)
coda_free_aux_buf(dev, &ctx->workbuf);
diff --git a/drivers/media/platform/coda/coda.h b/drivers/media/platform/coda/coda.h
index 57d070ce6665..01d940c630b3 100644
--- a/drivers/media/platform/coda/coda.h
+++ b/drivers/media/platform/coda/coda.h
@@ -26,7 +26,6 @@
#include "coda_regs.h"
#define CODA_MAX_FRAMEBUFFERS 8
-#define CODA_MAX_FRAME_SIZE 0x100000
#define FMO_SLICE_SAVE_BUF_SIZE (32)
enum {
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