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rpi-cmdline: Add ability to specify CPUs to add to the isolcpus list

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Signed-off-by: Andrew Penner <andrew.penner@protonmail.com>
This commit is contained in:
Andrew Penner 2022-04-01 21:27:22 +01:00 committed by Andrei Gherzan
parent 1ea28cfb2a
commit 2beae018fb
1 changed files with 13 additions and 0 deletions
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13
recipes-bsp/bootfiles/rpi-cmdline.bb
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@ -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} \