Hi Alexander, On Fri, Feb 16, 2024 at 11:31:46AM +0100, Alexander Stein wrote: > Hi Paul, > > thanks for the update. > > Am Freitag, 16. Februar 2024, 10:54:54 CET schrieb Paul Elder: > > On the ISP that is integrated in the i.MX8MP, DMA addresses have been > > extended to 34 bits, with the 32 MSBs stored in the DMA address > > registers and the 2 LSBs set to 0. > > > > To support this: > > - Shift the addresses to the right by 2 when writing to registers > > - Set the dma mask to 34 bits > > - Use dma_addr_t instead of u32 when storing the addresses > > > > Signed-off-by: Paul Elder <paul.elder@xxxxxxxxxxxxxxxx> > > Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > > Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx> > > Tested-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx> > > Tested-by: Adam Ford <aford173@xxxxxxxxx> > > Reviewed-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx> > > --- > > Changes since v5: > > > > - Improve the commit message > > > > Changes since v4: > > > > - Squash in fix from Tomi: > > - > > https://gitlab.com/ideasonboard/nxp/linux/-/commit/d6477fe673b1c0d05d12ae21 > > d8db9a03b07e7fea > > > > Changes since v2: > > > > - Document the RKISP1_FEATURE_DMA_34BIT bit > > - Use the rkisp1_has_feature() macro > > --- > > .../platform/rockchip/rkisp1/rkisp1-capture.c | 20 ++++++++++--------- > > .../platform/rockchip/rkisp1/rkisp1-common.h | 4 +++- > > .../platform/rockchip/rkisp1/rkisp1-dev.c | 8 ++++++++ > > 3 files changed, 22 insertions(+), 10 deletions(-) > > > > diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c > > b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c index > > ca95f62822fa..1ee7639c42b7 100644 > > --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c > > +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c > > @@ -648,11 +648,13 @@ static void rkisp1_dummy_buf_destroy(struct > > rkisp1_capture *cap) > > > > static void rkisp1_set_next_buf(struct rkisp1_capture *cap) > > { > > + u8 shift = rkisp1_has_feature(cap->rkisp1, DMA_34BIT) ? 2 : 0; > > + > > cap->buf.curr = cap->buf.next; > > cap->buf.next = NULL; > > > > if (!list_empty(&cap->buf.queue)) { > > - u32 *buff_addr; > > + dma_addr_t *buff_addr; > > > > cap->buf.next = list_first_entry(&cap->buf.queue, struct > rkisp1_buffer, On a side note, any chance your mail client would have an option to avoid this kind of wrapping ? :-) > > queue); list_del(&cap->buf.next->queue); > > @@ -660,7 +662,7 @@ static void rkisp1_set_next_buf(struct rkisp1_capture > > *cap) buff_addr = cap->buf.next->buff_addr; > > > > rkisp1_write(cap->rkisp1, cap->config->mi.y_base_ad_init, > > - buff_addr[RKISP1_PLANE_Y]); > > + buff_addr[RKISP1_PLANE_Y] >> shift); > > /* > > * In order to support grey format we capture > > * YUV422 planar format from the camera and > > @@ -669,17 +671,17 @@ static void rkisp1_set_next_buf(struct rkisp1_capture > > *cap) if (cap->pix.cfg->fourcc == V4L2_PIX_FMT_GREY) { > > rkisp1_write(cap->rkisp1, > > cap->config->mi.cb_base_ad_init, > > - cap->buf.dummy.dma_addr); > > + cap->buf.dummy.dma_addr >> > shift); > > rkisp1_write(cap->rkisp1, > > cap->config->mi.cr_base_ad_init, > > - cap->buf.dummy.dma_addr); > > + cap->buf.dummy.dma_addr >> > shift); > > } else { > > rkisp1_write(cap->rkisp1, > > cap->config->mi.cb_base_ad_init, > > - buff_addr[RKISP1_PLANE_CB]); > > + buff_addr[RKISP1_PLANE_CB] >> > shift); > > rkisp1_write(cap->rkisp1, > > cap->config->mi.cr_base_ad_init, > > - buff_addr[RKISP1_PLANE_CR]); > > + buff_addr[RKISP1_PLANE_CR] >> > shift); > > } > > } else { > > /* > > @@ -687,11 +689,11 @@ static void rkisp1_set_next_buf(struct rkisp1_capture > > *cap) * throw data if there is no available buffer. > > */ > > rkisp1_write(cap->rkisp1, cap->config->mi.y_base_ad_init, > > - cap->buf.dummy.dma_addr); > > + cap->buf.dummy.dma_addr >> shift); > > rkisp1_write(cap->rkisp1, cap->config->mi.cb_base_ad_init, > > - cap->buf.dummy.dma_addr); > > + cap->buf.dummy.dma_addr >> shift); > > rkisp1_write(cap->rkisp1, cap->config->mi.cr_base_ad_init, > > - cap->buf.dummy.dma_addr); > > + cap->buf.dummy.dma_addr >> shift); > > } > > > > /* Set plane offsets */ > > diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h > > b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h index > > 69940014d597..26573f6ae575 100644 > > --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h > > +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h > > @@ -114,6 +114,7 @@ enum rkisp1_isp_pad { > > * @RKISP1_FEATURE_MAIN_STRIDE: The ISP supports configurable stride on the > > main path * @RKISP1_FEATURE_SELF_PATH: The ISP has a self path > > * @RKISP1_FEATURE_DUAL_CROP: The ISP has the dual crop block at the > > resizer input + * @RKISP1_FEATURE_DMA_34BIT: The ISP uses 34-bit DMA > > addresses > > * > > * The ISP features are stored in a bitmask in &rkisp1_info.features and > > allow * the driver to implement support for features present in some ISP > > versions @@ -124,6 +125,7 @@ enum rkisp1_feature { > > RKISP1_FEATURE_MAIN_STRIDE = BIT(1), > > RKISP1_FEATURE_SELF_PATH = BIT(2), > > RKISP1_FEATURE_DUAL_CROP = BIT(3), > > + RKISP1_FEATURE_DMA_34BIT = BIT(4), > > }; > > > > #define rkisp1_has_feature(rkisp1, feature) \ > > @@ -239,7 +241,7 @@ struct rkisp1_vdev_node { > > struct rkisp1_buffer { > > struct vb2_v4l2_buffer vb; > > struct list_head queue; > > - u32 buff_addr[VIDEO_MAX_PLANES]; > > + dma_addr_t buff_addr[VIDEO_MAX_PLANES]; > > }; > > > > /* > > diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c > > b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c index > > d0a3a13d9dd7..54a62487a4e8 100644 > > --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c > > +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c > > @@ -552,6 +552,7 @@ static int rkisp1_probe(struct platform_device *pdev) > > struct device *dev = &pdev->dev; > > struct rkisp1_device *rkisp1; > > struct v4l2_device *v4l2_dev; > > + unsigned long long dma_mask; > > The signature for dma_set_mask_and_coherent() uses u64 for the mask, so I > would use the same type here as well. I'll do so in v13. > > unsigned int i; > > int ret, irq; > > u32 cif_id; > > @@ -566,6 +567,13 @@ static int rkisp1_probe(struct platform_device *pdev) > > dev_set_drvdata(dev, rkisp1); > > rkisp1->dev = dev; > > > > + dma_mask = rkisp1_has_feature(rkisp1, DMA_34BIT) ? DMA_BIT_MASK(34) > : > > + > DMA_BIT_MASK(32); > > + > > + ret = dma_set_mask_and_coherent(dev, dma_mask); > > + if (ret) > > + return ret; > > + > > mutex_init(&rkisp1->stream_lock); > > > > rkisp1->base_addr = devm_platform_ioremap_resource(pdev, 0); -- Regards, Laurent Pinchart
