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MIPS: Introduce cpu_tcache_line_size 

There exist macros to return the cache line size of the L1 dcache and L2
scache but there is currently no macro for the L3 tcache. Add this macro
which will be used by the following patch "MIPS: PCI: Fix
smp_processor_id() in preemptible"

Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: Maciej W. Rozycki <macro@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/16871/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Matt Redfearn 2017-07-26 08:41:08 +01:00 committed by Ralf Baechle
parent 68fe55680d
commit 21da533232
1 changed files with 3 additions and 0 deletions
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3
arch/mips/include/asm/cpu-features.h
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@ -428,6 +428,9 @@
#ifndef cpu_scache_line_size
#define cpu_scache_line_size() cpu_data[0].scache.linesz
#endif
#ifndef cpu_tcache_line_size
#define cpu_tcache_line_size() cpu_data[0].tcache.linesz
#endif
#ifndef cpu_hwrena_impl_bits
#define cpu_hwrena_impl_bits 0