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, 107 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-4.19/950-0233-staging-mmal-vchiq-Allocate-and-free-components-as-r.patch b/target/linux/bcm27xx/patches-4.19/950-0233-staging-mmal-vchiq-Allocate-and-free-components-as-r.patch
new file mode 100644
index 0000000000..7e4100f96a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-4.19/950-0233-staging-mmal-vchiq-Allocate-and-free-components-as-r.patch
@@ -0,0 +1,107 @@
+From f94642597f63c71b2ccffddd4f447190c131af56 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Mon, 24 Sep 2018 16:51:13 +0100
+Subject: [PATCH] staging: mmal-vchiq: Allocate and free components as
+ required
+
+The existing code assumed that there would only ever be 4 components,
+and never freed the entries once used.
+Allow arbitrary creation and destruction of components.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../vc04_services/vchiq-mmal/mmal-vchiq.c     | 29 ++++++++++++-------
+ .../vc04_services/vchiq-mmal/mmal-vchiq.h     |  1 +
+ 2 files changed, 20 insertions(+), 10 deletions(-)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+@@ -38,8 +38,11 @@ MODULE_AUTHOR("Dave Stevenson, <dave.ste
+ MODULE_LICENSE("GPL");
+ MODULE_VERSION("0.0.1");
+ 
+-/* maximum number of components supported */
+-#define VCHIQ_MMAL_MAX_COMPONENTS 4
++/*
++ * maximum number of components supported.
++ * This matches the maximum permitted by default on the VPU
++ */
++#define VCHIQ_MMAL_MAX_COMPONENTS 64
+ 
+ /*#define FULL_MSG_DUMP 1*/
+ 
+@@ -174,8 +177,6 @@ struct vchiq_mmal_instance {
+ 	/* protect accesses to context_map */
+ 	struct mutex context_map_lock;
+ 
+-	/* component to use next */
+-	int component_idx;
+ 	struct vchiq_mmal_component component[VCHIQ_MMAL_MAX_COMPONENTS];
+ 
+ 	/* ordered workqueue to process all bulk operations */
+@@ -1632,18 +1633,24 @@ int vchiq_mmal_component_init(struct vch
+ {
+ 	int ret;
+ 	int idx;		/* port index */
+-	struct vchiq_mmal_component *component;
++	struct vchiq_mmal_component *component = NULL;
+ 
+ 	if (mutex_lock_interruptible(&instance->vchiq_mutex))
+ 		return -EINTR;
+ 
+-	if (instance->component_idx == VCHIQ_MMAL_MAX_COMPONENTS) {
++	for (idx = 0; idx < VCHIQ_MMAL_MAX_COMPONENTS; idx++) {
++		if (!instance->component[idx].in_use) {
++			component = &instance->component[idx];
++			component->in_use = 1;
++			break;
++		}
++	}
++
++	if (!component) {
+ 		ret = -EINVAL;	/* todo is this correct error? */
+ 		goto unlock;
+ 	}
+ 
+-	component = &instance->component[instance->component_idx];
+-
+ 	ret = create_component(instance, component, name);
+ 	if (ret < 0) {
+ 		pr_err("%s: failed to create component %d (Not enough GPU mem?)\n",
+@@ -1694,8 +1701,6 @@ int vchiq_mmal_component_init(struct vch
+ 			goto release_component;
+ 	}
+ 
+-	instance->component_idx++;
+-
+ 	*component_out = component;
+ 
+ 	mutex_unlock(&instance->vchiq_mutex);
+@@ -1705,6 +1710,8 @@ int vchiq_mmal_component_init(struct vch
+ release_component:
+ 	destroy_component(instance, component);
+ unlock:
++	if (component)
++		component->in_use = 0;
+ 	mutex_unlock(&instance->vchiq_mutex);
+ 
+ 	return ret;
+@@ -1727,6 +1734,8 @@ int vchiq_mmal_component_finalise(struct
+ 
+ 	ret = destroy_component(instance, component);
+ 
++	component->in_use = 0;
++
+ 	mutex_unlock(&instance->vchiq_mutex);
+ 
+ 	return ret;
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
+@@ -82,6 +82,7 @@ struct vchiq_mmal_port {
+ };
+ 
+ struct vchiq_mmal_component {
++	u32 in_use:1;
+ 	bool enabled;
+ 	u32 handle;  /* VideoCore handle for component */
+ 	u32 inputs;  /* Number of input ports */