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ARM: msm: fix compilation flags for MSM_SCM
CONFIG_MSM_SCM uses the smc instruction, which with some toolchains requires a ".arch_extension" directive. Cc: David Brown <davidb@codeaurora.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: David Brown <davidb@codeaurora.org>
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2 changed files with 5 additions and 0 deletions
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@ -15,6 +15,8 @@ obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o
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obj-$(CONFIG_MSM_SMD) += last_radio_log.o
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obj-$(CONFIG_MSM_SCM) += scm.o scm-boot.o
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CFLAGS_scm.o :=$(call as-instr,.arch_extension sec,-DREQUIRES_SEC=1)
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obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
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obj-$(CONFIG_SMP) += headsmp.o platsmp.o
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@ -180,6 +180,9 @@ static u32 smc(u32 cmd_addr)
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__asmeq("%1", "r0")
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__asmeq("%2", "r1")
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__asmeq("%3", "r2")
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#ifdef REQUIRES_SEC
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".arch_extension sec\n"
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#endif
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"smc #0 @ switch to secure world\n"
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: "=r" (r0)
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: "r" (r0), "r" (r1), "r" (r2)
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