The ti-sgx-ddk driver requires an additional userspace initialization
step after the kernel module has probed the device. Without this
initialization, no EGL context can be created and Weston etc. will fail to
start.
The driver package contains an init script, but this does not work on
systemd-based systems. Introduce an enabled-by-default PACKAGECONFIG that
installs a udev rule instead to run the init command automatically when
the driver is loaded, solving the issue without depending on a specific
init system.
udev reports several events when the pvrsrvkm module is loaded:
- add event for the kernel module
- add events for two DRM devices
- bind event for the GPU platform device
The DRM devices aren't nice to match on, and the kernel module add is
too early to run `pvrsrvctl --start`, so we trigger on the platform
device bind.
Tested with Weston 9.0.0 on the AM65x-based TQ-Systems MBa65xx.
Signed-off-by: Matthias Schiffer <matthias.schif...@ew.tq-group.com>
---
.../libgles/ti-sgx-ddk-um/pvrsrvkm.rules | 1 +
.../libgles/ti-sgx-ddk-um_1.17.4948957.bb | 23 ++++++++++++++++++-
2 files changed, 23 insertions(+), 1 deletion(-)
create mode 100644
meta-ti-bsp/recipes-graphics/libgles/ti-sgx-ddk-um/pvrsrvkm.rules
diff --git a/meta-ti-bsp/recipes-graphics/libgles/ti-sgx-ddk-um/pvrsrvkm.rules
b/meta-ti-bsp/recipes-graphics/libgles/ti-sgx-ddk-um/pvrsrvkm.rules
new file mode 100644
index 00000000..e49fd9b8
--- /dev/null
+++ b/meta-ti-bsp/recipes-graphics/libgles/ti-sgx-ddk-um/pvrsrvkm.rules
@@ -0,0 +1 @@
+SUBSYSTEM=="platform", ACTION=="bind", ENV{DRIVER}=="pvrsrvkm",
RUN+="/usr/bin/pvrsrvctl --start --no-module"
diff --git a/meta-ti-bsp/recipes-graphics/libgles/ti-sgx-ddk-um_1.17.4948957.bb
b/meta-ti-bsp/recipes-graphics/libgles/ti-sgx-ddk-um_1.17.4948957.bb
index bd88d14d..2a8a0466 100644
--- a/meta-ti-bsp/recipes-graphics/libgles/ti-sgx-ddk-um_1.17.4948957.bb
+++ b/meta-ti-bsp/recipes-graphics/libgles/ti-sgx-ddk-um_1.17.4948957.bb
@@ -14,7 +14,10 @@ PR = "r37"
BRANCH = "ti-img-sgx/dunfell/${PV}"
-SRC_URI =
"git://git.ti.com/git/graphics/omap5-sgx-ddk-um-linux.git;protocol=https;branch=${BRANCH}"
+SRC_URI = " \
+
git://git.ti.com/git/graphics/omap5-sgx-ddk-um-linux.git;protocol=https;branch=${BRANCH}
\
+ file://pvrsrvkm.rules \
+"
SRCREV = "742cf38aba13e1ba1a910cf1f036a1a212c263b6"
TARGET_PRODUCT:omap-a15 = "jacinto6evm"
@@ -27,6 +30,9 @@ INITSCRIPT_PARAMS = "defaults 8"
inherit update-rc.d
+PACKAGECONFIG ??= "udev"
+PACKAGECONFIG[udev] = ",,,udev"
+
PROVIDES += "virtual/egl virtual/libgles1 virtual/libgles2 virtual/libgbm"
DEPENDS += "libdrm udev wayland wayland-protocols libffi expat"
@@ -56,6 +62,20 @@ do_install () {
oe_runmake install DESTDIR=${D} TARGET_PRODUCT=${TARGET_PRODUCT}
ln -sf libGLESv2.so.2 ${D}${libdir}/libGLESv2.so.1
+ local without_sysvinit=${@bb.utils.contains('DISTRO_FEATURES', 'sysvinit',
'false', 'true', d)}
+ local with_udev=${@bb.utils.contains('PACKAGECONFIG', 'udev', 'true',
'false', d)}
+
+ # Delete initscript if it is not needed or would conflict with the udev
rules
+ if $without_sysvinit || $with_udev; then
+ rm -rf ${D}${sysconfdir}/init.d
+ rmdir --ignore-fail-on-non-empty ${D}${sysconfdir}
+ fi
+
+ if $with_udev; then
+ install -m644 -D ${WORKDIR}/pvrsrvkm.rules \
+ ${D}${nonarch_base_libdir}/udev/rules.d/80-pvrsrvkm.rules
+ fi
+
chown -R root:root ${D}
}
@@ -63,6 +83,7 @@ FILES:${PN} = "${bindir}/*"
FILES:${PN} += " ${libdir}/*"
FILES:${PN} += "${includedir}/*"
FILES:${PN} += "${sysconfdir}/*"
+FILES:${PN} += "${nonarch_base_libdir}/udev/rules.d"
INSANE_SKIP:${PN} += "dev-so ldflags useless-rpaths"
INSANE_SKIP:${PN} += "already-stripped dev-deps"
--
2.34.1
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