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authorMatt Redfearn <matt.redfearn@imgtec.com>2016-09-07 11:45:17 +0200
committerRalf Baechle <ralf@linux-mips.org>2016-10-04 16:13:57 +0200
commit929d4f51e6b87900c9179eb62d6b43db6ce4930d (patch)
tree50dfa2a95d187d530d42529e0801f7437c33a289 /block
parentMIPS: pm-cps: Remove selection of sync types (diff)
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MIPS: pm-cps: Add MIPSr6 CPU support
This patch adds support for CPUs implementing the MIPSr6 ISA to the CPS power management code. Three changes are necessary: 1. In MIPSr6, coupled coherence is necessary when CPUS implement multiple Virtual Processors (VPs). 2. MIPSr6 virtual processors are more like real cores and cannot yield to other VPs on the same core, so drop the MT ASE yield instruction. 3. To halt a MIPSr6 VP, the CPC VP_STOP register is used rather than the MT ASE TCHalt CP0 register. Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> Cc: Adam Buchbinder <adam.buchbinder@gmail.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Kees Cook <keescook@chromium.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14225/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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