Hello,
Marek Szyprowski wrote:
> From: Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx>
>
> NV12 and YUV420 formats are need to calculate offset of each plane
> for ipp fimc in a gem buffer. Without proper offset, only Y plane
> can be processed, so result shows green frame.
> This patch fixes to calculate offset for cbcr planes for NV12 and
> YUV420 formats.
>
> Signed-off-by: Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx>
> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> ---
> drivers/gpu/drm/exynos/exynos_drm_fimc.c | 106 +++++++++++++++++++++++++++++++
> drivers/gpu/drm/exynos/exynos_drm_ipp.c | 15 ++++-
> drivers/gpu/drm/exynos/exynos_drm_ipp.h | 2 +
> 3 files changed, 121 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
> index c747824f3c98..72a7ca188be5 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
> @@ -403,6 +403,97 @@ static void fimc_handle_lastend(struct fimc_context *ctx, bool enable)
> fimc_write(ctx, cfg, EXYNOS_CIOCTRL);
> }
>
> +static int fimc_set_planar_addr(struct drm_exynos_ipp_buf_info *buf_info,
> + u32 fmt, struct drm_exynos_sz *sz)
> +{
> + dma_addr_t *base[EXYNOS_DRM_PLANAR_MAX];
I think I've seen this at several other places already, but I never
fully understood it.
Why are we using dma_addr_t* here, instead of just dma_addr_t? I mean in
the following code the pointer is just in the dereferenced form anyway,
so why this added indirection?
With best wishes,
Tobias
> + uint64_t size[EXYNOS_DRM_PLANAR_MAX];
> + uint64_t ofs[EXYNOS_DRM_PLANAR_MAX];
> + bool bypass = false;
> + uint64_t tsize = 0;
> + int i;
> +
> + for_each_ipp_planar(i) {
> + base[i] = &buf_info->base[i];
> + size[i] = buf_info->size[i];
> + ofs[i] = 0;
> + tsize += size[i];
> + }
> +
> + if (!tsize) {
> + DRM_INFO("%s:failed to get buffer size.\n", __func__);
> + return 0;
> + }
> +
> + switch (fmt) {
> + case DRM_FORMAT_NV12:
> + case DRM_FORMAT_NV21:
> + case DRM_FORMAT_NV16:
> + case DRM_FORMAT_NV61:
> + ofs[0] = sz->hsize * sz->vsize;
> + ofs[1] = ofs[0] >> 1;
> + if (*base[0] && *base[1]) {
> + if (size[0] + size[1] < ofs[0] + ofs[1])
> + goto err_info;
> + bypass = true;
> + }
> + break;
> + case DRM_FORMAT_YUV410:
> + case DRM_FORMAT_YVU410:
> + case DRM_FORMAT_YUV411:
> + case DRM_FORMAT_YVU411:
> + case DRM_FORMAT_YUV420:
> + case DRM_FORMAT_YVU420:
> + case DRM_FORMAT_YUV422:
> + case DRM_FORMAT_YVU422:
> + case DRM_FORMAT_YUV444:
> + case DRM_FORMAT_YVU444:
> + ofs[0] = sz->hsize * sz->vsize;
> + ofs[1] = ofs[2] = ofs[0] >> 2;
> + if (*base[0] && *base[1] && *base[2]) {
> + if (size[0]+size[1]+size[2] < ofs[0]+ofs[1]+ofs[2])
> + goto err_info;
> + bypass = true;
> + }
> + break;
> + case DRM_FORMAT_XRGB8888:
> + case DRM_FORMAT_ARGB8888:
> + ofs[0] = sz->hsize * sz->vsize << 2;
> + if (*base[0]) {
> + if (size[0] < ofs[0])
> + goto err_info;
> + }
> + bypass = true;
> + break;
> + default:
> + bypass = true;
> + break;
> + }
> +
> + if (!bypass) {
> + *base[1] = *base[0] + ofs[0];
> + if (ofs[1] && ofs[2])
> + *base[2] = *base[1] + ofs[1];
> + }
> +
> + DRM_DEBUG_KMS("%s:y[0x%x],cb[0x%x],cr[0x%x]\n", __func__,
> + *base[0], *base[1], *base[2]);
> +
> + return 0;
> +
> +err_info:
> + DRM_ERROR("invalid size for fmt[0x%x]\n", fmt);
> +
> + for_each_ipp_planar(i) {
> + base[i] = &buf_info->base[i];
> + size[i] = buf_info->size[i];
> +
> + DRM_ERROR("buf[%d] - base[0x%x] sz[%llu] ofs[%llu]\n",
> + i, *base[i], size[i], ofs[i]);
> + }
> +
> + return -EINVAL;
> +}
>
> static int fimc_src_set_fmt_order(struct fimc_context *ctx, u32 fmt)
> {
> @@ -689,6 +780,7 @@ static int fimc_src_set_addr(struct device *dev,
> struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
> struct drm_exynos_ipp_property *property;
> struct drm_exynos_ipp_config *config;
> + int ret;
>
> if (!c_node) {
> DRM_ERROR("failed to get c_node.\n");
> @@ -709,6 +801,12 @@ static int fimc_src_set_addr(struct device *dev,
> switch (buf_type) {
> case IPP_BUF_ENQUEUE:
> config = &property->config[EXYNOS_DRM_OPS_SRC];
> + ret = fimc_set_planar_addr(buf_info, config->fmt, &config->sz);
> + if (ret) {
> + dev_err(dev, "failed to set plane src addr.\n");
> + return ret;
> + }
> +
> fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_Y],
> EXYNOS_CIIYSA0);
>
> @@ -1148,6 +1246,7 @@ static int fimc_dst_set_addr(struct device *dev,
> struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
> struct drm_exynos_ipp_property *property;
> struct drm_exynos_ipp_config *config;
> + int ret;
>
> if (!c_node) {
> DRM_ERROR("failed to get c_node.\n");
> @@ -1168,6 +1267,11 @@ static int fimc_dst_set_addr(struct device *dev,
> switch (buf_type) {
> case IPP_BUF_ENQUEUE:
> config = &property->config[EXYNOS_DRM_OPS_DST];
> + ret = fimc_set_planar_addr(buf_info, config->fmt, &config->sz);
> + if (ret) {
> + dev_err(dev, "failed to set plane dst addr.\n");
> + return ret;
> + }
>
> fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_Y],
> EXYNOS_CIOYSA(buf_id));
> @@ -1562,6 +1666,8 @@ static void fimc_ippdrv_stop(struct device *dev, enum drm_exynos_ipp_cmd cmd)
> /* reset sequence */
> fimc_write(ctx, 0x0, EXYNOS_CIFCNTSEQ);
>
> + fimc_clear_addr(ctx);
> +
> /* Scaler disable */
> fimc_clear_bits(ctx, EXYNOS_CISCCTRL, EXYNOS_CISCCTRL_SCALERSTART);
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.c b/drivers/gpu/drm/exynos/exynos_drm_ipp.c
> index 67d24236e745..408a14a9a180 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_ipp.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.c
> @@ -571,6 +571,7 @@ static struct drm_exynos_ipp_mem_node
> /* get dma address by handle */
> if (qbuf->handle[i]) {
> dma_addr_t *addr;
> + unsigned long size;
>
> addr = exynos_drm_gem_get_dma_addr(drm_dev,
> qbuf->handle[i], c_node->filp);
> @@ -580,10 +581,20 @@ static struct drm_exynos_ipp_mem_node
> return ERR_PTR(-EFAULT);
> }
>
> + size = exynos_drm_gem_get_size(drm_dev,
> + qbuf->handle[i], c_node->filp);
> + if (!size) {
> + DRM_ERROR("failed to get size.\n");
> + ipp_put_mem_node(drm_dev, c_node, m_node);
> + return ERR_PTR(-EFAULT);
> + }
> +
> buf_info->handles[i] = qbuf->handle[i];
> buf_info->base[i] = *addr;
> - DRM_DEBUG_KMS("i[%d]base[0x%x]hd[0x%lx]\n", i,
> - buf_info->base[i], buf_info->handles[i]);
> + buf_info->size[i] = (uint64_t)size;
> + DRM_DEBUG_KMS("i[%d]base[%pad]hd[0x%lx]sz[%llx]\n", i,
> + &buf_info->base[i], buf_info->handles[i],
> + buf_info->size[i]);
> }
> }
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.h b/drivers/gpu/drm/exynos/exynos_drm_ipp.h
> index 2a61547a39d0..d4f0b588220b 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_ipp.h
> +++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.h
> @@ -85,10 +85,12 @@ struct drm_exynos_ipp_cmd_node {
> *
> * @handles: Y, Cb, Cr each gem object handle.
> * @base: Y, Cb, Cr each planar address.
> + * @size: Y, Cb, Cr each planar size.
> */
> struct drm_exynos_ipp_buf_info {
> unsigned long handles[EXYNOS_DRM_PLANAR_MAX];
> dma_addr_t base[EXYNOS_DRM_PLANAR_MAX];
> + uint64_t size[EXYNOS_DRM_PLANAR_MAX];
> };
>
> /*
>
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