linux_dsm_epyc7002/arch/powerpc
Michael Ellerman 54820530c5 powerpc/powernv: Enable TM without suspend if possible
Some Power9 revisions can run in a mode where TM operates without
suspended state. If we find ourself on a CPU that might be in this
mode, we query OPAL to check, and if so we reenable TM in CPU
features, and enable a new user feature to signal to userspace that we
are in this mode.

We do not enable the "normal" user feature, PPC_FEATURE2_HTM, but we
do enable PPC_FEATURE2_HTM_NOSC because that indicates to userspace
that the kernel will abort transactions on syscall entry, which is
true regardless of the suspend mode.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-10-21 09:33:05 +11:00
..
boot powerpc: conditionally compile platform-specific serial drivers 2017-08-31 14:26:48 +10:00
configs powerpc: Add PPC_EMULATED_STATS to powernv_defconfig 2017-10-06 20:47:32 +11:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-05-02 15:53:46 -07:00
include powerpc/powernv: Enable TM without suspend if possible 2017-10-21 09:33:05 +11:00
kernel powerpc/powernv: Enable TM without suspend if possible 2017-10-21 09:33:05 +11:00
kvm KVM: PPC: Tie KVM_CAP_PPC_HTM to the user-visible TM feature 2017-10-20 11:09:26 +11:00
lib powerpc/lib/sstep: Fix fixed-point shift instructions that set CA32 2017-10-04 11:28:04 +11:00
math-emu Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
mm powerpc/vphn: Fix numa update end-loop bug 2017-10-16 23:12:05 +11:00
net powerpc updates for 4.14 2017-09-07 10:15:40 -07:00
oprofile powerpc/oprofile: Use setup_timer() helper 2017-10-04 11:28:01 +11:00
perf powerpc/sysrq: Fix oops whem ppmu is not registered 2017-09-20 13:30:09 +10:00
platforms powerpc/powernv: Enable TM without suspend if possible 2017-10-21 09:33:05 +11:00
purgatory powerpc/asm: Convert .llong directives to .8byte 2017-08-31 14:26:47 +10:00
sysdev treewide: make "nr_cpu_ids" unsigned 2017-09-08 18:26:48 -07:00
tools powerpc/64: Tool to check head sections location sanity 2017-05-30 14:59:51 +10:00
xmon powerpc/xmon: Add option to show uptime information 2017-10-06 20:46:38 +11:00
Kconfig powerpc updates for 4.14 2017-09-07 10:15:40 -07:00
Kconfig.debug powerpc/xmon: Enable disassembly files (compilation changes) 2017-02-15 20:02:42 +11:00
Makefile Merge branch 'fixes' into next 2017-08-23 22:20:10 +10:00
Makefile.postlink powerpc/64: Tool to check head sections location sanity 2017-05-30 14:59:51 +10:00