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| author | Alex Elder <elder@linaro.org> | 2014-04-21 23:53:09 +0200 |
|---|---|---|
| committer | Matt Porter <mporter@linaro.org> | 2014-04-25 14:51:36 +0200 |
| commit | 8b9c550e37ff4e4d0de2890a835f44a7813e3423 (patch) | |
| tree | 07e846ee9fb1c09b820e67825558d6e107440044 /arch/arm/mach-bcm/Makefile | |
| parent | ARM: bcm: tidy up a few includes (diff) | |
| download | linux-8b9c550e37ff4e4d0de2890a835f44a7813e3423.tar.xz linux-8b9c550e37ff4e4d0de2890a835f44a7813e3423.zip | |
ARM: bcm: use inline assembly for "smc" request
Move the code that implements the "smc" call into a C function that
uses inline assembly. This allows us to make that function private,
and enables us to get rid of "arch/arm/mach-bcm/bcm_kona_smc_asm.S".
Rename what had been the "buffer_addr" argument to be "buffer_phys"
so it's consistent with other usage in this file.
Since it's now easy to do, verify that r12 contains SEC_EXIT_NORMAL
upon completion of the SMC. There really isn't a good way to handle
the abnormal completion of a secure monitor request.
Since "bcm_kona_smc.h" is now only included from C files, eliminate
the #ifndef __ASSEMBLY__.
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
Diffstat (limited to 'arch/arm/mach-bcm/Makefile')
| -rw-r--r-- | arch/arm/mach-bcm/Makefile | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/mach-bcm/Makefile b/arch/arm/mach-bcm/Makefile index 51549814f7cd..d5b60feda8ad 100644 --- a/arch/arm/mach-bcm/Makefile +++ b/arch/arm/mach-bcm/Makefile @@ -20,9 +20,10 @@ obj-$(CONFIG_ARCH_BCM_21664) += board_bcm21664.o obj-$(CONFIG_ARCH_BCM_MOBILE_L2_CACHE) += kona.o # Support for secure monitor traps -obj-$(CONFIG_ARCH_BCM_MOBILE_SMC) += bcm_kona_smc.o bcm_kona_smc_asm.o -plus_sec := $(call as-instr,.arch_extension sec,+sec) -AFLAGS_bcm_kona_smc_asm.o :=-Wa,-march=armv7-a$(plus_sec) +obj-$(CONFIG_ARCH_BCM_MOBILE_SMC) += bcm_kona_smc.o +ifeq ($(call as-instr,.arch_extension sec,as_has_sec),as_has_sec) +CFLAGS_bcm_kona_smc.o += -Wa,-march=armv7-a+sec -DREQUIRES_SEC +endif # BCM2835 obj-$(CONFIG_ARCH_BCM2835) += board_bcm2835.o |