[PATCH 0/7] powerpc: branch cache flush changes

[Michael Ellerman]

On Tue, 9 Jun 2020 17:06:03 +1000, Nicholas Piggin wrote:
> This series allows the link stack to be flushed with the speical
> bcctr 2,0,0 flush instruction that also flushes the count cache if
> the processor supports it.
> 
> Firmware does not support this at the moment, but I've tested it in
> simulator with a patched firmware to advertise support.
> 
> [...]

Patches 1-6 applied to powerpc/next.

[1/7] powerpc/security: re-name count cache flush to branch cache flush
      https://git.kernel.org/powerpc/c/1026798c644bfd3115fc4e32fd5e767cfc30ccf1
[2/7] powerpc/security: change link stack flush state to the flush type enum
      https://git.kernel.org/powerpc/c/c06ac2771070f465076e87bba262c64fb0b3aca3
[3/7] powerpc/security: make display of branch cache flush more consistent
      https://git.kernel.org/powerpc/c/1afe00c74ffe6d502bffa81c7d849cb4640d7ae5
[4/7] powerpc/security: split branch cache flush toggle from code patching
      https://git.kernel.org/powerpc/c/c0036549a9d9a060fa8bc24e31f85503ce08ad5e
[5/7] powerpc/64s: Move branch cache flushing bcctr variant to ppc-ops.h
      https://git.kernel.org/powerpc/c/70d7cdaf0548ec95fa7204dcdd39cd8e63cee24d
[6/7] powerpc/security: Allow for processors that flush the link stack using the special bcctr
      https://git.kernel.org/powerpc/c/4d24e21cc694e7253a532fe5a9bde12b284f1317

cheers