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generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-05-23 00:17:30 +0000
00 committerRalf Baechle <ralf@linux-mips.org>2016-07-29 10:19:29 +0200 commita9341ae24169e5d55aefdfeeefb17eab96b8e655 (patch) tree3c37b185c5bae3e9d08d4318feed4aead03dffe3 parent640511ae92466800c75da77a3c7f72b8488c93a1 (diff)
MIPS: c-r4k: Split r4k_flush_kernel_vmap_range()
Split the operation of r4k_flush_kernel_vmap_range() into separate SMP callbacks for the indexed cache flush and hit cache flush cases, since the logic to determine which to use can be determined by the initiating CPU prior to doing any SMP calls. This will help when we change r4k_on_each_cpu() to distinguish indexed and hit cache ops in a later patch, preventing globalized hit cache ops being performed redundantly on multiple CPUs. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Leonid Yegoshin <leonid.yegoshin@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13806/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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an SMP call to a single VPE in each foreign core is used, it is not necessary to check every CPU in the system, only sibling CPUs sharing the same first level cache. Fix this by making has_valid_asid() take a cache op type argument like r4k_on_each_cpu(), so it can determine whether r4k_on_each_cpu() will have done SMP calls to other cores. It can then determine which set of CPUs to check the ASIDs of based on that, excluding foreign CPUs if an SMP call will have been performed. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Leonid Yegoshin <leonid.yegoshin@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13804/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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