Re: [PATCH] firmware: qcom: scm: Add function stubs for ARM64

From	Andy Gross <agross@codeaurora.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH] firmware: qcom: scm: Add function stubs for ARM64
Date	2015-09-11 21:30 +0200
Message-ID	<q7Cbh-2BT-37@gated-at.bofh.it> (permalink)
References	<q7AMb-sV-35@gated-at.bofh.it> <q7AMb-sV-37@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On Fri, Sep 11, 2015 at 06:56:49PM +0100, Russell King - ARM Linux wrote:
> On Fri, Sep 11, 2015 at 12:50:56PM -0500, Andy Gross wrote:
> > This patch adds stubs for the SCM functions exposed in the QCOM SCM API.
> > 
> > Signed-off-by: Andy Gross <agross@codeaurora.org>
> > ---
> >  drivers/firmware/Makefile      |    4 +++
> >  drivers/firmware/qcom_scm-64.c |   63 ++++++++++++++++++++++++++++++++++++++++
> >  2 files changed, 67 insertions(+)
> >  create mode 100644 drivers/firmware/qcom_scm-64.c
> > 
> > diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
> > index 4a4b897..2f810c2 100644
> > --- a/drivers/firmware/Makefile
> > +++ b/drivers/firmware/Makefile
> > @@ -12,8 +12,12 @@ obj-$(CONFIG_ISCSI_IBFT_FIND)	+= iscsi_ibft_find.o
> >  obj-$(CONFIG_ISCSI_IBFT)	+= iscsi_ibft.o
> >  obj-$(CONFIG_FIRMWARE_MEMMAP)	+= memmap.o
> >  obj-$(CONFIG_QCOM_SCM)		+= qcom_scm.o
> > +ifdef CONFIG_ARM64
> > +obj-$(CONFIG_QCOM_SCM)		+= qcom_scm-64.o
> > +else
> >  obj-$(CONFIG_QCOM_SCM)		+= qcom_scm-32.o
> >  CFLAGS_qcom_scm-32.o :=$(call as-instr,.arch_extension sec,-DREQUIRES_SEC=1)
> > +endif
> 
> Can we not start doing stuff like this.  Use the Kconfig to control what
> you build, not the Makefile system.
> 
> config QCOM_SCM_32
> 	def_bool y
> 	depends on QCOM_SCM && ARM
> 
> config QCOM_SCM_64
> 	def_bool y
> 	depends on QCOM_SCM && ARM64
> 
> and then use those in the makefile.

That's a fair implementation.  There is going to be a bit of work
going into getting the 64 bit SCM un-stubbed.  So I can respin to incorporate
your comments or we can wait for the unstubbing.

-- 
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Re: [PATCH] firmware: qcom: scm: Add function stubs for ARM64 Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-09-11 20:00 +0200
  Re: [PATCH] firmware: qcom: scm: Add function stubs for ARM64 Andy Gross <agross@codeaurora.org> - 2015-09-11 21:30 +0200

csiph-web