diff options
Diffstat (limited to 'meta-raspberrypi/recipes-bsp/bootfiles/rpi-cmdline.bb')
| -rw-r--r-- | meta-raspberrypi/recipes-bsp/bootfiles/rpi-cmdline.bb | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/meta-raspberrypi/recipes-bsp/bootfiles/rpi-cmdline.bb b/meta-raspberrypi/recipes-bsp/bootfiles/rpi-cmdline.bb index 50c2b53185..413ca4d527 100644 --- a/meta-raspberrypi/recipes-bsp/bootfiles/rpi-cmdline.bb +++ b/meta-raspberrypi/recipes-bsp/bootfiles/rpi-cmdline.bb @@ -29,6 +29,18 @@ CMDLINE_LOGO ?= '${@oe.utils.conditional("DISABLE_RPI_BOOT_LOGO", "1", "logo.nol # to enable kernel debugging. CMDLINE_DEBUG ?= "" +# Add a request to isolate processors from the Linux scheduler. ISOLATED_CPUS +# may have the form of a comma separated list of processor numbers "0,1,3", a +# range "0-2", a combination of the two "0-1,3", or a single processor you may +# not specify ALL processors simultaneously +def setup_isolcpus(d): + string = "" + if d.getVar('ISOLATED_CPUS'): + string = 'isolcpus=' + d.getVar('ISOLATED_CPUS') + return string + +CMDLINE_ISOL_CPUS ?= "${@setup_isolcpus(d)}" + # Add RNDIS capabilities (must be after rootwait) # example: # CMDLINE_RNDIS = "modules-load=dwc2,g_ether g_ether.host_addr=<some MAC @@ -37,6 +49,7 @@ CMDLINE_DEBUG ?= "" CMDLINE_RNDIS ?= "" CMDLINE = " \ + ${CMDLINE_ISOL_CPUS} \ ${CMDLINE_DWC_OTG} \ ${CMDLINE_SERIAL} \ ${CMDLINE_ROOTFS} \ |