On Thu, Dec 29, 2016 at 05:27:25PM -0600, Andy Gross wrote: > This patch adds a quirk parameter to the arm_smccc_smc call. The quirk > structure allows for specialized SMC operations due to SoC specific > requirements. The current arm_smccc_smc is renamed and macros are used > instead to specify the standard arm_smccc_smc or the arm_smccc_smc_quirk > function. > > This patch and partial implementation was suggested by Will Deacon. > > Signed-off-by: Andy Gross <[email protected]> > --- > arch/arm/kernel/armksyms.c | 2 +- > arch/arm/kernel/smccc-call.S | 7 ++++--- > arch/arm64/kernel/arm64ksyms.c | 2 +- > arch/arm64/kernel/asm-offsets.c | 7 +++++-- > arch/arm64/kernel/smccc-call.S | 7 ++++--- > include/linux/arm-smccc.h | 28 ++++++++++++++++++++++++---- > 6 files changed, 39 insertions(+), 14 deletions(-)
[...] > @@ -101,4 +115,10 @@ asmlinkage void arm_smccc_hvc(unsigned long a0, unsigned > long a1, > unsigned long a5, unsigned long a6, unsigned long a7, > struct arm_smccc_res *res); > > +#define arm_smccc_smc(a0, a1, a2, a3, a4, a5, a6, a7, res) \ > + __arm_smccc_smc(a0, a1, a2, a3, a4, a5, a6, a7, res, NULL) > + > +#define arm_smccc_smc_quirk(a0, a1, a2, a3, a4, a5, a6, a7, res, quirk) \ > + __arm_smccc_smc(a0, a1, a2, a3, a4, a5, a6, a7, res, quirk) This might be a bit cleaner with a variadic macro, but either way: Reviewed-by: Will Deacon <[email protected]> Will
