linux_dsm_epyc7002/arch/powerpc
Nicholas Piggin ed0bc98f8c powerpc/64s: Reimplement power4_idle code in C
This implements the tricky tracing and soft irq handling bits in C,
leaving the low level bit to asm.

A functional difference is that this redirects the interrupt exit to
a return stub to execute blr, rather than the lr address itself. This
is probably barely measurable on real hardware, but it keeps the link
stack balanced.

Tested with QEMU.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Move power4_fixup_nap back into exceptions-64s.S]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190711022404.18132-1-npiggin@gmail.com
2020-01-16 14:59:37 +10:00
..
boot powerpc/44x: Adjust indentation in ibm4xx_denali_fixup_memsize 2020-01-06 16:25:27 +11:00
configs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2019-12-01 13:26:18 -08:00
crypto powerpc updates for 5.5 2019-11-30 14:35:43 -08:00
include powerpc/64s: Reimplement power4_idle code in C 2020-01-16 14:59:37 +10:00
kernel powerpc/64s: Reimplement power4_idle code in C 2020-01-16 14:59:37 +10:00
kexec powerpc: Avoid clang warnings around setjmp and longjmp 2019-11-25 21:45:43 +11:00
kvm PPC: 2019-12-22 10:26:59 -08:00
lib powerpc: Fix __clear_user() with KUAP enabled 2019-12-16 23:19:44 +11:00
math-emu
mm powerpc/book3s64/hash: Disable 16M linear mapping size if not aligned 2020-01-16 14:59:36 +10:00
net treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
oprofile
perf powerpc updates for 5.5 2019-11-30 14:35:43 -08:00
platforms powerpc/64s: Reimplement power4_idle code in C 2020-01-16 14:59:37 +10:00
purgatory
sysdev powerpc/mpic: constify copied structure 2020-01-07 21:42:16 +11:00
tools powerpc/tools: Don't quote $objdump in scripts 2019-10-30 22:55:12 +11:00
xmon powerpc/xmon: don't access ASDR in VMs 2020-01-14 11:04:08 +10:00
Kbuild powerpc/kexec: Move kexec files into a dedicated subdir. 2019-11-21 15:41:34 +11:00
Kconfig powerpc: Remove STRICT_KERNEL_RWX incompatibility with RELOCATABLE 2020-01-16 14:59:36 +10:00
Kconfig.debug powerpc: Fix Kconfig indentation 2019-11-25 21:45:43 +11:00
Makefile powerpc: Don't add -mabi= flags when building with Clang 2019-11-25 21:45:43 +11:00
Makefile.postlink kbuild: add $(BASH) to run scripts with bash-extension 2019-09-04 22:54:13 +09:00