brcm2708: rename target to bcm27xx

This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 186 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-4.19/950-0310-staging-bcm2835_codec-Fix-handling-of-VB2_MEMORY_DMA.patch b/target/linux/bcm27xx/patches-4.19/950-0310-staging-bcm2835_codec-Fix-handling-of-VB2_MEMORY_DMA.patch
new file mode 100644
index 0000000000..7e3373e489
--- /dev/null
+++ b/target/linux/bcm27xx/patches-4.19/950-0310-staging-bcm2835_codec-Fix-handling-of-VB2_MEMORY_DMA.patch
@@ -0,0 +1,186 @@
+From 0df32e2f563123166c20677f022d4a0f825c5df2 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Fri, 15 Feb 2019 11:38:45 +0000
+Subject: [PATCH] staging: bcm2835_codec: Fix handling of
+ VB2_MEMORY_DMABUF buffers
+
+If the queue is configured as VB2_MEMORY_DMABUF then vb2_core_expbuf
+fails as it ensures the queue is defined as VB2_MEMORY_MMAP.
+
+Correct the handling so that we unmap the buffer from vcsm and the
+VPU on cleanup, and then correctly get the dma buf of the new buffer.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../bcm2835-codec/bcm2835-v4l2-codec.c        | 80 +++++++++++++------
+ .../vc04_services/vchiq-mmal/mmal-vchiq.c     | 21 +++--
+ .../vc04_services/vchiq-mmal/mmal-vchiq.h     |  2 +
+ 3 files changed, 73 insertions(+), 30 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -1852,6 +1852,18 @@ static int bcm2835_codec_queue_setup(str
+ 	return 0;
+ }
+ 
++static int bcm2835_codec_mmal_buf_cleanup(struct mmal_buffer *mmal_buf)
++{
++	mmal_vchi_buffer_cleanup(mmal_buf);
++
++	if (mmal_buf->dma_buf) {
++		dma_buf_put(mmal_buf->dma_buf);
++		mmal_buf->dma_buf = NULL;
++	}
++
++	return 0;
++}
++
+ static int bcm2835_codec_buf_init(struct vb2_buffer *vb)
+ {
+ 	struct bcm2835_codec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+@@ -1880,6 +1892,7 @@ static int bcm2835_codec_buf_prepare(str
+ 						   vb);
+ 	struct m2m_mmal_buffer *buf = container_of(m2m, struct m2m_mmal_buffer,
+ 						   m2m);
++	struct dma_buf *dma_buf;
+ 	int ret;
+ 
+ 	v4l2_dbg(4, debug, &ctx->dev->v4l2_dev, "%s: type: %d ptr %p\n",
+@@ -1906,20 +1919,48 @@ static int bcm2835_codec_buf_prepare(str
+ 	if (!V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type))
+ 		vb2_set_plane_payload(vb, 0, q_data->sizeimage);
+ 
+-	/*
+-	 * We want to do this at init, but vb2_core_expbuf checks that the
+-	 * index < q->num_buffers, and q->num_buffers only gets updated once
+-	 * all the buffers are allocated.
+-	 */
+-	if (!buf->mmal.dma_buf) {
+-		ret = vb2_core_expbuf_dmabuf(vb->vb2_queue,
+-					     vb->vb2_queue->type, vb->index, 0,
+-					     O_CLOEXEC, &buf->mmal.dma_buf);
+-		if (ret)
+-			v4l2_err(&ctx->dev->v4l2_dev, "%s: Failed to expbuf idx %d, ret %d\n",
+-				 __func__, vb->index, ret);
+-	} else {
++	switch (vb->memory) {
++	case VB2_MEMORY_DMABUF:
++		dma_buf = dma_buf_get(vb->planes[0].m.fd);
++
++		if (dma_buf != buf->mmal.dma_buf) {
++			/* dmabuf either hasn't already been mapped, or it has
++			 * changed.
++			 */
++			if (buf->mmal.dma_buf) {
++				v4l2_err(&ctx->dev->v4l2_dev,
++					 "%s Buffer changed - why did the core not call cleanup?\n",
++					 __func__);
++				bcm2835_codec_mmal_buf_cleanup(&buf->mmal);
++			}
++
++			buf->mmal.dma_buf = dma_buf;
++		}
+ 		ret = 0;
++		break;
++	case VB2_MEMORY_MMAP:
++		/*
++		 * We want to do this at init, but vb2_core_expbuf checks that
++		 * the index < q->num_buffers, and q->num_buffers only gets
++		 * updated once all the buffers are allocated.
++		 */
++		if (!buf->mmal.dma_buf) {
++			ret = vb2_core_expbuf_dmabuf(vb->vb2_queue,
++						     vb->vb2_queue->type,
++						     vb->index, 0,
++						     O_CLOEXEC,
++						     &buf->mmal.dma_buf);
++			if (ret)
++				v4l2_err(&ctx->dev->v4l2_dev,
++					 "%s: Failed to expbuf idx %d, ret %d\n",
++					 __func__, vb->index, ret);
++		} else {
++			ret = 0;
++		}
++		break;
++	default:
++		ret = -EINVAL;
++		break;
+ 	}
+ 
+ 	return ret;
+@@ -1948,12 +1989,7 @@ static void bcm2835_codec_buffer_cleanup
+ 	v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s: ctx:%p, vb %p\n",
+ 		 __func__, ctx, vb);
+ 
+-	mmal_vchi_buffer_cleanup(&buf->mmal);
+-
+-	if (buf->mmal.dma_buf) {
+-		dma_buf_put(buf->mmal.dma_buf);
+-		buf->mmal.dma_buf = NULL;
+-	}
++	bcm2835_codec_mmal_buf_cleanup(&buf->mmal);
+ }
+ 
+ static int bcm2835_codec_start_streaming(struct vb2_queue *q,
+@@ -2067,11 +2103,7 @@ static void bcm2835_codec_stop_streaming
+ 		m2m = container_of(vb2, struct v4l2_m2m_buffer, vb);
+ 		buf = container_of(m2m, struct m2m_mmal_buffer, m2m);
+ 
+-		mmal_vchi_buffer_cleanup(&buf->mmal);
+-		if (buf->mmal.dma_buf) {
+-			dma_buf_put(buf->mmal.dma_buf);
+-			buf->mmal.dma_buf = NULL;
+-		}
++		bcm2835_codec_mmal_buf_cleanup(&buf->mmal);
+ 	}
+ 
+ 	/* If both ports disabled, then disable the component */
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+@@ -1785,13 +1785,9 @@ int mmal_vchi_buffer_init(struct vchiq_m
+ }
+ EXPORT_SYMBOL_GPL(mmal_vchi_buffer_init);
+ 
+-int mmal_vchi_buffer_cleanup(struct mmal_buffer *buf)
++int mmal_vchi_buffer_unmap(struct mmal_buffer *buf)
+ {
+-	struct mmal_msg_context *msg_context = buf->msg_context;
+-
+-	if (msg_context)
+-		release_msg_context(msg_context);
+-	buf->msg_context = NULL;
++	int ret = 0;
+ 
+ 	if (buf->vcsm_handle) {
+ 		int ret;
+@@ -1803,6 +1799,19 @@ int mmal_vchi_buffer_cleanup(struct mmal
+ 			pr_err("%s: vcsm_free failed, ret %d\n", __func__, ret);
+ 		buf->vcsm_handle = 0;
+ 	}
++	return ret;
++}
++EXPORT_SYMBOL_GPL(mmal_vchi_buffer_unmap);
++
++int mmal_vchi_buffer_cleanup(struct mmal_buffer *buf)
++{
++	struct mmal_msg_context *msg_context = buf->msg_context;
++
++	if (msg_context)
++		release_msg_context(msg_context);
++	buf->msg_context = NULL;
++
++	mmal_vchi_buffer_unmap(buf);
+ 	return 0;
+ }
+ EXPORT_SYMBOL_GPL(mmal_vchi_buffer_cleanup);
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
+@@ -167,6 +167,8 @@ int vchiq_mmal_submit_buffer(struct vchi
+ 			     struct vchiq_mmal_port *port,
+ 			     struct mmal_buffer *buf);
+ 
++int mmal_vchi_buffer_unmap(struct mmal_buffer *buf);
++
+ int mmal_vchi_buffer_init(struct vchiq_mmal_instance *instance,
+ 			  struct mmal_buffer *buf);
+ int mmal_vchi_buffer_cleanup(struct mmal_buffer *buf);