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Subject[PATCH v9 06/13] media: hantro: change hantro_codec_ops run prototype to return errors
Date
Change hantro_codec_ops run prototype from 'void' to 'int'.
This allows the driver to cancel the job if an error occurs while configuring
the hardware.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
---
version 9:
- Corrections in commit message

version 8:
- add Ezequiel review tag

version 5:
- forward hantro_h264_dec_prepare_run() return value in case
of error

drivers/staging/media/hantro/hantro_drv.c | 4 +++-
.../staging/media/hantro/hantro_g1_h264_dec.c | 10 +++++++---
.../media/hantro/hantro_g1_mpeg2_dec.c | 4 +++-
.../staging/media/hantro/hantro_g1_vp8_dec.c | 6 ++++--
.../staging/media/hantro/hantro_h1_jpeg_enc.c | 4 +++-
drivers/staging/media/hantro/hantro_hw.h | 19 ++++++++++---------
.../media/hantro/rk3399_vpu_hw_jpeg_enc.c | 4 +++-
.../media/hantro/rk3399_vpu_hw_mpeg2_dec.c | 4 +++-
.../media/hantro/rk3399_vpu_hw_vp8_dec.c | 6 ++++--
9 files changed, 40 insertions(+), 21 deletions(-)

diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index 595e82a82728..02c5c2f1a88b 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -161,7 +161,9 @@ static void device_run(void *priv)

v4l2_m2m_buf_copy_metadata(src, dst, true);

- ctx->codec_ops->run(ctx);
+ if (ctx->codec_ops->run(ctx))
+ goto err_cancel_job;
+
return;

err_cancel_job:
diff --git a/drivers/staging/media/hantro/hantro_g1_h264_dec.c b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
index 845bef73d218..5c792b7bcb79 100644
--- a/drivers/staging/media/hantro/hantro_g1_h264_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
@@ -273,13 +273,15 @@ static void set_buffers(struct hantro_ctx *ctx)
vdpu_write_relaxed(vpu, ctx->h264_dec.priv.dma, G1_REG_ADDR_QTABLE);
}

-void hantro_g1_h264_dec_run(struct hantro_ctx *ctx)
+int hantro_g1_h264_dec_run(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
+ int ret;

/* Prepare the H264 decoder context. */
- if (hantro_h264_dec_prepare_run(ctx))
- return;
+ ret = hantro_h264_dec_prepare_run(ctx);
+ if (ret)
+ return ret;

/* Configure hardware registers. */
set_params(ctx);
@@ -301,4 +303,6 @@ void hantro_g1_h264_dec_run(struct hantro_ctx *ctx)
G1_REG_CONFIG_DEC_CLK_GATE_E,
G1_REG_CONFIG);
vdpu_write(vpu, G1_REG_INTERRUPT_DEC_E, G1_REG_INTERRUPT);
+
+ return 0;
}
diff --git a/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c b/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
index 6386a3989bfe..5e8943d31dc5 100644
--- a/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
@@ -155,7 +155,7 @@ hantro_g1_mpeg2_dec_set_buffers(struct hantro_dev *vpu, struct hantro_ctx *ctx,
vdpu_write_relaxed(vpu, backward_addr, G1_REG_REFER3_BASE);
}

-void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
+int hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
struct vb2_v4l2_buffer *src_buf, *dst_buf;
@@ -248,4 +248,6 @@ void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)

reg = G1_REG_DEC_E(1);
vdpu_write(vpu, reg, G1_SWREG(1));
+
+ return 0;
}
diff --git a/drivers/staging/media/hantro/hantro_g1_vp8_dec.c b/drivers/staging/media/hantro/hantro_g1_vp8_dec.c
index 57002ba70176..96622a7f8279 100644
--- a/drivers/staging/media/hantro/hantro_g1_vp8_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_vp8_dec.c
@@ -425,7 +425,7 @@ static void cfg_buffers(struct hantro_ctx *ctx,
vdpu_write_relaxed(vpu, dst_dma, G1_REG_ADDR_DST);
}

-void hantro_g1_vp8_dec_run(struct hantro_ctx *ctx)
+int hantro_g1_vp8_dec_run(struct hantro_ctx *ctx)
{
const struct v4l2_ctrl_vp8_frame *hdr;
struct hantro_dev *vpu = ctx->dev;
@@ -438,7 +438,7 @@ void hantro_g1_vp8_dec_run(struct hantro_ctx *ctx)

hdr = hantro_get_ctrl(ctx, V4L2_CID_STATELESS_VP8_FRAME);
if (WARN_ON(!hdr))
- return;
+ return -EINVAL;

/* Reset segment_map buffer in keyframe */
if (V4L2_VP8_FRAME_IS_KEY_FRAME(hdr) && ctx->vp8_dec.segment_map.cpu)
@@ -498,4 +498,6 @@ void hantro_g1_vp8_dec_run(struct hantro_ctx *ctx)
hantro_end_prepare_run(ctx);

vdpu_write(vpu, G1_REG_INTERRUPT_DEC_E, G1_REG_INTERRUPT);
+
+ return 0;
}
diff --git a/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c b/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c
index b88dc4ed06db..56cf261a8e95 100644
--- a/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c
+++ b/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c
@@ -88,7 +88,7 @@ hantro_h1_jpeg_enc_set_qtable(struct hantro_dev *vpu,
}
}

-void hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx)
+int hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
struct vb2_v4l2_buffer *src_buf, *dst_buf;
@@ -136,6 +136,8 @@ void hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx)
hantro_end_prepare_run(ctx);

vepu_write(vpu, reg, H1_REG_ENC_CTRL);
+
+ return 0;
}

void hantro_jpeg_enc_done(struct hantro_ctx *ctx)
diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index 83b3e42b63a3..6a34ddfa34b7 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -133,14 +133,15 @@ struct hantro_postproc_ctx {
* Optional and called from process context.
* @run: Start single {en,de)coding job. Called from atomic context
* to indicate that a pair of buffers is ready and the hardware
- * should be programmed and started.
+ * should be programmed and started. Returns zero if OK, a
+ * negative value in error cases.
* @done: Read back processing results and additional data from hardware.
* @reset: Reset the hardware in case of a timeout.
*/
struct hantro_codec_ops {
int (*init)(struct hantro_ctx *ctx);
void (*exit)(struct hantro_ctx *ctx);
- void (*run)(struct hantro_ctx *ctx);
+ int (*run)(struct hantro_ctx *ctx);
void (*done)(struct hantro_ctx *ctx);
void (*reset)(struct hantro_ctx *ctx);
};
@@ -176,8 +177,8 @@ void hantro_irq_done(struct hantro_dev *vpu,
void hantro_start_prepare_run(struct hantro_ctx *ctx);
void hantro_end_prepare_run(struct hantro_ctx *ctx);

-void hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx);
-void rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx);
+int hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx);
+int rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx);
int hantro_jpeg_enc_init(struct hantro_ctx *ctx);
void hantro_jpeg_enc_exit(struct hantro_ctx *ctx);
void hantro_jpeg_enc_done(struct hantro_ctx *ctx);
@@ -185,7 +186,7 @@ void hantro_jpeg_enc_done(struct hantro_ctx *ctx);
dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
unsigned int dpb_idx);
int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx);
-void hantro_g1_h264_dec_run(struct hantro_ctx *ctx);
+int hantro_g1_h264_dec_run(struct hantro_ctx *ctx);
int hantro_h264_dec_init(struct hantro_ctx *ctx);
void hantro_h264_dec_exit(struct hantro_ctx *ctx);

@@ -216,15 +217,15 @@ hantro_h264_mv_size(unsigned int width, unsigned int height)
return 64 * MB_WIDTH(width) * MB_WIDTH(height) + 32;
}

-void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx);
-void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx);
+int hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx);
+int rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx);
void hantro_mpeg2_dec_copy_qtable(u8 *qtable,
const struct v4l2_ctrl_mpeg2_quantization *ctrl);
int hantro_mpeg2_dec_init(struct hantro_ctx *ctx);
void hantro_mpeg2_dec_exit(struct hantro_ctx *ctx);

-void hantro_g1_vp8_dec_run(struct hantro_ctx *ctx);
-void rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx);
+int hantro_g1_vp8_dec_run(struct hantro_ctx *ctx);
+int rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx);
int hantro_vp8_dec_init(struct hantro_ctx *ctx);
void hantro_vp8_dec_exit(struct hantro_ctx *ctx);
void hantro_vp8_prob_update(struct hantro_ctx *ctx,
diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw_jpeg_enc.c b/drivers/staging/media/hantro/rk3399_vpu_hw_jpeg_enc.c
index 3498e6124acd..3a27ebef4f38 100644
--- a/drivers/staging/media/hantro/rk3399_vpu_hw_jpeg_enc.c
+++ b/drivers/staging/media/hantro/rk3399_vpu_hw_jpeg_enc.c
@@ -118,7 +118,7 @@ rk3399_vpu_jpeg_enc_set_qtable(struct hantro_dev *vpu,
}
}

-void rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx)
+int rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
struct vb2_v4l2_buffer *src_buf, *dst_buf;
@@ -168,4 +168,6 @@ void rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx)
/* Kick the watchdog and start encoding */
hantro_end_prepare_run(ctx);
vepu_write(vpu, reg, VEPU_REG_ENCODE_START);
+
+ return 0;
}
diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c b/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
index f610fa5b4335..4bd3080abbc1 100644
--- a/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
+++ b/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
@@ -157,7 +157,7 @@ rk3399_vpu_mpeg2_dec_set_buffers(struct hantro_dev *vpu,
vdpu_write_relaxed(vpu, backward_addr, VDPU_REG_REFER3_BASE);
}

-void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
+int rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
struct vb2_v4l2_buffer *src_buf, *dst_buf;
@@ -254,4 +254,6 @@ void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)

reg = vdpu_read(vpu, VDPU_SWREG(57)) | VDPU_REG_DEC_E(1);
vdpu_write(vpu, reg, VDPU_SWREG(57));
+
+ return 0;
}
diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c b/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c
index 8661a3cc1e6b..e5d20fe5b007 100644
--- a/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c
+++ b/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c
@@ -503,7 +503,7 @@ static void cfg_buffers(struct hantro_ctx *ctx,
vdpu_write_relaxed(vpu, dst_dma, VDPU_REG_ADDR_DST);
}

-void rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx)
+int rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx)
{
const struct v4l2_ctrl_vp8_frame *hdr;
struct hantro_dev *vpu = ctx->dev;
@@ -516,7 +516,7 @@ void rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx)

hdr = hantro_get_ctrl(ctx, V4L2_CID_STATELESS_VP8_FRAME);
if (WARN_ON(!hdr))
- return;
+ return -EINVAL;

/* Reset segment_map buffer in keyframe */
if (V4L2_VP8_FRAME_IS_KEY_FRAME(hdr) && ctx->vp8_dec.segment_map.cpu)
@@ -589,4 +589,6 @@ void rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx)
hantro_end_prepare_run(ctx);

hantro_reg_write(vpu, &vp8_dec_start_dec, 1);
+
+ return 0;
}
--
2.25.1
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