From: Mark Rutland Date: Wed, 16 Jul 2014 15:32:43 +0000 (+0100) Subject: arm64: add MIDR_EL1 field accessors X-Git-Tag: omap-for-v3.17/fixes-against-rc2~183^2~31 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=89c4a306e7631bcb71cc537c8a029172af6047fe;p=pandora-kernel.git arm64: add MIDR_EL1 field accessors The MIDR_EL1 register is composed of a number of bitfields, and uses of the fields has so far involved open-coding of the shifts and masks required. This patch adds shifts and masks for each of the MIDR_EL1 subfields, and also provides accessors built atop of these. Existing uses within cputype.h are updated to use these accessors. The read_cpuid_part_number macro is modified to return the extracted bitfield rather than returning the value in-place with all other fields (including revision) masked out, to better match the other accessors. As the value is only used in comparison with the *_CPU_PART_* macros which are similarly updated, and these values are never exposed to userspace, this change should not affect any functionality. Signed-off-by: Mark Rutland Acked-by: Will Deacon Reviewed-by: Will Deacon Reviewed-by: Catalin Marinas Signed-off-by: Catalin Marinas --- Reading git-diff-tree failed