Commit e5fe5609 authored Aug 25, 2020 by Nicholas Piggin Committed by Michael Ellerman Aug 27, 2020

powerpc/64s: scv entry should set PPR



Kernel entry sets PPR to HMT_MEDIUM by convention. The scv entry
path missed this.

Fixes: 7fa95f9a ("powerpc/64s: system call support for scv/rfscv instructions")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200825075309.224184-1-npiggin@gmail.com

parent aa661d7f

arch/powerpc/kernel/entry_64.S

+4 −0

Original line number	Diff line number	Diff line
		@@ -113,6 +113,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_TM)
		ld r11,exception_marker@toc(r2)
		std r11,-16(r10) /* "regshere" marker */

		BEGIN_FTR_SECTION
		HMT_MEDIUM
		END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)

		/*
		* RECONCILE_IRQ_STATE without calling trace_hardirqs_off(), which
		* would clobber syscall parameters. Also we always enter with IRQs

Admin message