On Thu, Dec 21, 2017 at 11:32 AM, Fan Zhang <fzh...@sgl.com> wrote: > Greetings, > > I have a recipes that requires 128MB of CMA allocation for DMA. I followed > the instruction in > http://www.yoctoproject.org/docs/1.6/kernel-dev/kernel-dev.html#changing-the-configuration > and did the following: > > My recipes structure: > > meta-mylayer\recipes-my\uio-test\ > > 1. Then in uio-test folder, I have uio-test.bb that created by recipetool > (in general) with some modification. uio-test.bb looks like this: > > #------------------------------------------------------------------ > > # Recipe created by recipetool > # This is the basis of a recipe and may need further editing in order to be > fully functional. > # (Feel free to remove these comments when editing.) > > # Unable to find any files that looked like license statements. Check the > accompanying > # documentation and source headers and set LICENSE and LIC_FILES_CHKSUM > accordingly. > # > # NOTE: LICENSE is being set to "CLOSED" to allow you to at least start > building - if > # this is not accurate with respect to the licensing of the software being > built (it > # will not be in most cases) you must specify the correct value before using > this > # recipe for anything other than initial testing/development! > LICENSE = "CLOSED" > LIC_FILES_CHKSUM = "" > > # No information for SRC_URI yet (only an external source tree was > specified) > PV = "2.0.2" > SRC_URI = "file://src" > > # NOTE: this is a Makefile-only piece of software, so we cannot generate > much of the > # recipe automatically - you will need to examine the Makefile yourself and > ensure > # that the appropriate arguments are passed in. > > do_configure () { > # Specify any needed configure commands here > : > } > > do_compile () { > # You will almost certainly need to add additional arguments here > cd ${WORKDIR}/src > oe_runmake > } > > FILES_${PN} = "/www/pages /etc/lighttpd.d" > do_install () { > # This is a guess; additional arguments may be required > cd ${WORKDIR}/src > oe_runmake install 'DESTDIR=${D}' > } > > DEPENDS = "libgcc boost" > RDEPENDS_${PN} = "libgcc boost-thread boost-system lighttpd > lighttpd-module-cgi" > #------------------------------------------------------------------ > > 2. Also in uio-test folder, I have uio-test.bbappend file with these > contents: > > #------------------------------------------------------------------ > > FILESEXTRAPATHS_prepend := "${THISDIR}/files:" > SRC_URI += "file://uio-test.cfg" > > #----------------------^^^^^^^^^^^^^^^^^^^------------------------- > > 3. In uio-test/files folder, I have uio-test.cfg with the following > contents: > > > #------------------------------------------------------------------ > > CONFIG_CMA_ALIGNMENT=8 > CONFIG_CMA=y > CONFIG_CMA_AREAS=7 > CONFIG_DMA_CMA=y > CONFIG_CMA_SIZE_MBYTES=128 > CONFIG_CMA_SIZE_SEL_MBYTES=y > CONFIG_DMADEVICES=y > CONFIG_DMA_ENGINE=y > CONFIG_DMA_OF=y > CONFIG_XILINX_DMA_ENGINES=y > CONFIG_XILINX_DMA=y > CONFIG_DMA_API_DEBUG=y > CONFIG_HAS_DMA=y > CONFIG_NEED_DMA_MAP_STATE=y > CONFIG_HAVE_DMA_CONTIGUOUS=y > CONFIG_HAVE_DMA_API_DEBUG=y > CONFIG_HAVE_GENERIC_DMA_COHERENT=y > CONFIG_ARM_DMA_MEM_BUFFERABLE=y > CONFIG_ZONE_DMA_FLAG=0 > #----------------------^^^^^^^^^^^^^^^^^^^------------------------- > > My question: I think the cfg file is being parsed because if I change the > folder name files to something else, bitbake will complaint about not being > able to find uio-test.cfg. However, the final .config in built do not have > the CMA allocated. My meta layer does have a priority higher than the > upstream layers. What else can cause the problem here? Any suggestions? > Thanks.
The question is ... which kernel is it ? If the kernel recipe you are using doesn't inherit linux-yocto, the fragments won't be applied. And a second question, what release/branch are you using ? On that note, I actually have a patch completed to move the core of the fragment support to kernel.bbclass, so any kernel could use it. So if you aren't linux-yocto and would like to test a patch, I could send it along. Bruce > > Fan Zhang > > > -- > _______________________________________________ > yocto mailing list > yocto@yoctoproject.org > https://lists.yoctoproject.org/listinfo/yocto > -- "Thou shalt not follow the NULL pointer, for chaos and madness await thee at its end" -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto