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Re: [PATCH v2 09/10] arm/time,vtimer: Get rid of READ/WRITE_SYSREG32





On 27/04/2021 10:35, Michal Orzel wrote:
AArch64 registers are 64bit whereas AArch32 registers
are 32bit or 64bit. MSR/MRS are expecting 64bit values thus
we should get rid of helpers READ/WRITE_SYSREG32
in favour of using READ/WRITE_SYSREG.
We should also use register_t type when reading sysregs
which can correspond to uint64_t or uint32_t.
Even though many AArch64 registers have upper 32bit reserved
it does not mean that they can't be widen in the future.

Modify type of vtimer structure's member: ctl to register_t.

Add macro CNTFRQ_MASK containing mask for timer clock frequency
field of CNTFRQ_EL0 register.

Modify CNTx_CTL_MASK to return unsigned long instead of
unsigned int as ctl is now of type register_t.

You modify all the CTX_CTL_* macros.

This can be fixed on commit.


Signed-off-by: Michal Orzel <michal.orzel@xxxxxxx>

Acked-by: Julien Grall <jgrall@xxxxxxxxxx>

Cheers,

--
Julien Grall



 


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