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0df977eafc
linux_dsm_epyc7002/arch/powerpc
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Christophe Leroy 0df977eafc powerpc/6xx: Don't use SPRN_SPRG2 for storing stack pointer while in RTAS 
When calling RTAS, the stack pointer is stored in SPRN_SPRG2
in order to be able to restore it in case of machine check in RTAS.

As machine check is not a perfomance critical path, this patch
frees SPRN_SPRG2 by using a field in thread struct instead.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-02-22 00:10:16 +11:00
..
boot powerpc/dts: Standardize DTS status assignments from "ok" to "okay" 2019-02-22 00:10:15 +11:00
configs powerpc/configs: Add PPC4xx_OCM to ppc40x_defconfig 2018-12-30 14:00:47 +11:00
crypto powerpc updates for 4.19 2018-08-17 11:32:50 -07:00
include powerpc/6xx: Don't use SPRN_SPRG2 for storing stack pointer while in RTAS 2019-02-22 00:10:16 +11:00
kernel powerpc/6xx: Don't use SPRN_SPRG2 for storing stack pointer while in RTAS 2019-02-22 00:10:16 +11:00
kvm Merge branch 'topic/ppc-kvm' into next 2019-02-22 00:09:56 +11:00
lib Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
math-emu powerpc: math-emu: remove unneeded header search paths 2019-01-14 20:39:27 +11:00
mm powerpc: simplify BDI switch 2019-02-22 00:10:16 +11:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2018-12-10 18:00:43 -08:00
oprofile Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
perf Merge branch 'fixes' into next 2019-02-19 19:56:26 +11:00
platforms powerpc/83xx: Also save/restore SPRG4-7 during suspend 2019-02-22 00:10:16 +11:00
purgatory powerpc updates for 4.19 2018-08-17 11:32:50 -07:00
sysdev Merge branch 'topic/dma' into next 2019-02-21 23:15:10 +11:00
tools powerpc/tools/checkpatch: Ignore DT_SPLIT_BINDING_PATCH 2018-12-04 19:45:01 +11:00
xmon powerpc/xmon: fix dump_segments() 2018-12-19 18:56:32 +11:00
Kbuild powerpc: Add -Werror at arch/powerpc level 2018-10-19 00:56:17 +11:00
Kconfig powerpc: Make PPC_64K_PAGES depend on only 44x or PPC_BOOK3S_64 2019-02-22 00:10:15 +11:00
Kconfig.debug powerpc: remove redundant 'default n' from Kconfig-s 2018-10-13 22:21:25 +11:00
Makefile powerpc: remove redundant header search path additions 2019-01-14 20:39:27 +11:00
Makefile.postlink License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00