From: Bingbu Cao bingbu.cao@intel.com

commit 1d4a000289979cc7f2887c8407b1bfe2a0918354 upstream.

dma_ops is removed from the IPU6 auxiliary device, ISYS driver should use the IPU6 DMA mapping APIs directly instead of depending on the device callbacks.

ISYS driver switch from the videobuf2 DMA contig memory allocator to scatter/gather memory allocator.

Signed-off-by: Bingbu Cao bingbu.cao@intel.com [Sakari Ailus: Rebased on recent videobuf2 wait changes.] Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Signed-off-by: Hans Verkuil hverkuil@xs4all.nl Signed-off-by: Stanislaw Gruszka stanislaw.gruszka@linux.intel.com --- drivers/media/pci/intel/ipu6/Kconfig | 2 +- .../media/pci/intel/ipu6/ipu6-isys-queue.c | 66 +++++++++++++++---- .../media/pci/intel/ipu6/ipu6-isys-queue.h | 1 + drivers/media/pci/intel/ipu6/ipu6-isys.c | 19 +++--- 4 files changed, 64 insertions(+), 24 deletions(-)

diff --git a/drivers/media/pci/intel/ipu6/Kconfig b/drivers/media/pci/intel/ipu6/Kconfig index a4537818a58c..cd1c54529357 100644 --- a/drivers/media/pci/intel/ipu6/Kconfig +++ b/drivers/media/pci/intel/ipu6/Kconfig @@ -8,7 +8,7 @@ config VIDEO_INTEL_IPU6 select IOMMU_IOVA select VIDEO_V4L2_SUBDEV_API select MEDIA_CONTROLLER - select VIDEOBUF2_DMA_CONTIG + select VIDEOBUF2_DMA_SG select V4L2_FWNODE help This is the 6th Gen Intel Image Processing Unit, found in Intel SoCs diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys-queue.c b/drivers/media/pci/intel/ipu6/ipu6-isys-queue.c index 03dbb0e0ea79..bbb66b56ee88 100644 --- a/drivers/media/pci/intel/ipu6/ipu6-isys-queue.c +++ b/drivers/media/pci/intel/ipu6/ipu6-isys-queue.c @@ -13,17 +13,48 @@

#include <media/media-entity.h> #include <media/v4l2-subdev.h> -#include <media/videobuf2-dma-contig.h> +#include <media/videobuf2-dma-sg.h> #include <media/videobuf2-v4l2.h>

#include "ipu6-bus.h" +#include "ipu6-dma.h" #include "ipu6-fw-isys.h" #include "ipu6-isys.h" #include "ipu6-isys-video.h"

-static int queue_setup(struct vb2_queue *q, unsigned int *num_buffers, - unsigned int *num_planes, unsigned int sizes[], - struct device *alloc_devs[]) +static int ipu6_isys_buf_init(struct vb2_buffer *vb) +{ + struct ipu6_isys *isys = vb2_get_drv_priv(vb->vb2_queue); + struct sg_table *sg = vb2_dma_sg_plane_desc(vb, 0); + struct vb2_v4l2_buffer *vvb = to_vb2_v4l2_buffer(vb); + struct ipu6_isys_video_buffer *ivb = + vb2_buffer_to_ipu6_isys_video_buffer(vvb); + int ret; + + ret = ipu6_dma_map_sgtable(isys->adev, sg, DMA_TO_DEVICE, 0); + if (ret) + return ret; + + ivb->dma_addr = sg_dma_address(sg->sgl); + + return 0; +} + +static void ipu6_isys_buf_cleanup(struct vb2_buffer *vb) +{ + struct ipu6_isys *isys = vb2_get_drv_priv(vb->vb2_queue); + struct sg_table *sg = vb2_dma_sg_plane_desc(vb, 0); + struct vb2_v4l2_buffer *vvb = to_vb2_v4l2_buffer(vb); + struct ipu6_isys_video_buffer *ivb = + vb2_buffer_to_ipu6_isys_video_buffer(vvb); + + ivb->dma_addr = 0; + ipu6_dma_unmap_sgtable(isys->adev, sg, DMA_TO_DEVICE, 0); +} + +static int ipu6_isys_queue_setup(struct vb2_queue *q, unsigned int *num_buffers, + unsigned int *num_planes, unsigned int sizes[], + struct device *alloc_devs[]) { struct ipu6_isys_queue *aq = vb2_queue_to_isys_queue(q); struct ipu6_isys_video *av = ipu6_isys_queue_to_video(aq); @@ -207,9 +238,11 @@ ipu6_isys_buf_to_fw_frame_buf_pin(struct vb2_buffer *vb, struct ipu6_fw_isys_frame_buff_set_abi *set) { struct ipu6_isys_queue *aq = vb2_queue_to_isys_queue(vb->vb2_queue); + struct vb2_v4l2_buffer *vvb = to_vb2_v4l2_buffer(vb); + struct ipu6_isys_video_buffer *ivb = + vb2_buffer_to_ipu6_isys_video_buffer(vvb);

- set->output_pins[aq->fw_output].addr = - vb2_dma_contig_plane_dma_addr(vb, 0); + set->output_pins[aq->fw_output].addr = ivb->dma_addr; set->output_pins[aq->fw_output].out_buf_id = vb->index + 1; }

@@ -332,7 +365,7 @@ static void buf_queue(struct vb2_buffer *vb)

dev_dbg(dev, "queue buffer %u for %s\n", vb->index, av->vdev.name);

- dma = vb2_dma_contig_plane_dma_addr(vb, 0); + dma = ivb->dma_addr; dev_dbg(dev, "iova: iova %pad\n", &dma);

spin_lock_irqsave(&aq->lock, flags); @@ -724,10 +757,14 @@ void ipu6_isys_queue_buf_ready(struct ipu6_isys_stream *stream, }

list_for_each_entry_reverse(ib, &aq->active, head) { + struct ipu6_isys_video_buffer *ivb; + struct vb2_v4l2_buffer *vvb; dma_addr_t addr;

vb = ipu6_isys_buffer_to_vb2_buffer(ib); - addr = vb2_dma_contig_plane_dma_addr(vb, 0); + vvb = to_vb2_v4l2_buffer(vb); + ivb = vb2_buffer_to_ipu6_isys_video_buffer(vvb); + addr = ivb->dma_addr;

if (info->pin.addr != addr) { if (first) @@ -766,10 +803,12 @@ void ipu6_isys_queue_buf_ready(struct ipu6_isys_stream *stream, }

static const struct vb2_ops ipu6_isys_queue_ops = { - .queue_setup = queue_setup, + .queue_setup = ipu6_isys_queue_setup, .wait_prepare = vb2_ops_wait_prepare, .wait_finish = vb2_ops_wait_finish, + .buf_init = ipu6_isys_buf_init, .buf_prepare = ipu6_isys_buf_prepare, + .buf_cleanup = ipu6_isys_buf_cleanup, .start_streaming = start_streaming, .stop_streaming = stop_streaming, .buf_queue = buf_queue, @@ -779,16 +818,17 @@ int ipu6_isys_queue_init(struct ipu6_isys_queue *aq) { struct ipu6_isys *isys = ipu6_isys_queue_to_video(aq)->isys; struct ipu6_isys_video *av = ipu6_isys_queue_to_video(aq); + struct ipu6_bus_device *adev = isys->adev; int ret;

/* no support for userptr */ if (!aq->vbq.io_modes) aq->vbq.io_modes = VB2_MMAP | VB2_DMABUF;

- aq->vbq.drv_priv = aq; + aq->vbq.drv_priv = isys; aq->vbq.ops = &ipu6_isys_queue_ops; aq->vbq.lock = &av->mutex; - aq->vbq.mem_ops = &vb2_dma_contig_memops; + aq->vbq.mem_ops = &vb2_dma_sg_memops; aq->vbq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; aq->vbq.min_queued_buffers = 1; aq->vbq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; @@ -797,8 +837,8 @@ int ipu6_isys_queue_init(struct ipu6_isys_queue *aq) if (ret) return ret;

- aq->dev = &isys->adev->auxdev.dev; - aq->vbq.dev = &isys->adev->auxdev.dev; + aq->dev = &adev->auxdev.dev; + aq->vbq.dev = &adev->isp->pdev->dev; spin_lock_init(&aq->lock); INIT_LIST_HEAD(&aq->active); INIT_LIST_HEAD(&aq->incoming); diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys-queue.h b/drivers/media/pci/intel/ipu6/ipu6-isys-queue.h index 95cfd4869d93..fe8fc796a58f 100644 --- a/drivers/media/pci/intel/ipu6/ipu6-isys-queue.h +++ b/drivers/media/pci/intel/ipu6/ipu6-isys-queue.h @@ -38,6 +38,7 @@ struct ipu6_isys_buffer { struct ipu6_isys_video_buffer { struct vb2_v4l2_buffer vb_v4l2; struct ipu6_isys_buffer ib; + dma_addr_t dma_addr; };

#define IPU6_ISYS_BUFFER_LIST_FL_INCOMING BIT(0) diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys.c b/drivers/media/pci/intel/ipu6/ipu6-isys.c index c4aff2e2009b..c85e056cb904 100644 --- a/drivers/media/pci/intel/ipu6/ipu6-isys.c +++ b/drivers/media/pci/intel/ipu6/ipu6-isys.c @@ -34,6 +34,7 @@

#include "ipu6-bus.h" #include "ipu6-cpd.h" +#include "ipu6-dma.h" #include "ipu6-isys.h" #include "ipu6-isys-csi2.h" #include "ipu6-mmu.h" @@ -933,29 +934,27 @@ static const struct dev_pm_ops isys_pm_ops = {

static void free_fw_msg_bufs(struct ipu6_isys *isys) { - struct device *dev = &isys->adev->auxdev.dev; struct isys_fw_msgs *fwmsg, *safe;

list_for_each_entry_safe(fwmsg, safe, &isys->framebuflist, head) - dma_free_attrs(dev, sizeof(struct isys_fw_msgs), fwmsg, - fwmsg->dma_addr, 0); + ipu6_dma_free(isys->adev, sizeof(struct isys_fw_msgs), fwmsg, + fwmsg->dma_addr, 0);

list_for_each_entry_safe(fwmsg, safe, &isys->framebuflist_fw, head) - dma_free_attrs(dev, sizeof(struct isys_fw_msgs), fwmsg, - fwmsg->dma_addr, 0); + ipu6_dma_free(isys->adev, sizeof(struct isys_fw_msgs), fwmsg, + fwmsg->dma_addr, 0); }

static int alloc_fw_msg_bufs(struct ipu6_isys *isys, int amount) { - struct device *dev = &isys->adev->auxdev.dev; struct isys_fw_msgs *addr; dma_addr_t dma_addr; unsigned long flags; unsigned int i;

for (i = 0; i < amount; i++) { - addr = dma_alloc_attrs(dev, sizeof(struct isys_fw_msgs), - &dma_addr, GFP_KERNEL, 0); + addr = ipu6_dma_alloc(isys->adev, sizeof(*addr), + &dma_addr, GFP_KERNEL, 0); if (!addr) break; addr->dma_addr = dma_addr; @@ -974,8 +973,8 @@ static int alloc_fw_msg_bufs(struct ipu6_isys *isys, int amount) struct isys_fw_msgs, head); list_del(&addr->head); spin_unlock_irqrestore(&isys->listlock, flags); - dma_free_attrs(dev, sizeof(struct isys_fw_msgs), addr, - addr->dma_addr, 0); + ipu6_dma_free(isys->adev, sizeof(struct isys_fw_msgs), addr, + addr->dma_addr, 0); spin_lock_irqsave(&isys->listlock, flags); } spin_unlock_irqrestore(&isys->listlock, flags);