Hello, On 2015-11-12 16:20, Tobias Jakobi wrote: > Hello, > > Marek Szyprowski wrote: >> From: Seung-Woo Kim <sw0312.kim at samsung.com> >> >> 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 at samsung.com> >> Signed-off-by: Marek Szyprowski <m.szyprowski at samsung.com> >> --- >> 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?
This function updates dma addresses stored in struct drm_exynos_ipp_buf_info *buf_info (it adds offset related to specific pixel format), so using a pointer makes all formulas shorter. >> + 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]; >> }; >> >> /* >> > Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland