Merge patch series "riscv: Create and document PR_RISCV_SET_ICACHE_FLUSH_CTX prctl"

Charlie Jenkins <[email protected]> says:

Improve the performance of icache flushing by creating a new prctl flag
PR_RISCV_SET_ICACHE_FLUSH_CTX. The interface is left generic to allow
for future expansions such as with the proposed J extension [1].

Documentation is also provided to explain the use case.

Patch sent to add PR_RISCV_SET_ICACHE_FLUSH_CTX to man-pages [2].

[1] https://github.com/riscv/riscv-j-extension
[2] https://lore.kernel.org/linux-man/[email protected]

* b4-shazam-merge:
  cpumask: Add assign cpu
  documentation: Document PR_RISCV_SET_ICACHE_FLUSH_CTX prctl
  riscv: Include riscv_set_icache_flush_ctx prctl
  riscv: Remove unnecessary irqflags processor.h include

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>

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