system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-07-09 12:49:11 +00:00
Code Issues Packages Projects Releases Wiki Activity

MIPS: Make CONFIG_MIPS_MT_SMP default y

Browse Source 
On systems that support MT ASE multithreading (ie. VPEs) we are very
likely to want to include that support as default. Rather than setting
it in various defconfigs, simply make CONFIG_MIPS_MT_SMP default y such
that systems which select CONFIG_SYS_SUPPORTS_MULTITHREADING get it by
default.

As well as allowing us to remove the selection of CONFIG_MIPS_MT_SMP
from various defconfigs, this also allows the generated generic
defconfigs which derive from generic_defconfig to automatically gain
support for MT ASE SMP when building for a suitable (pre-MIPSr6) ISA.

For malta_kvm_guest_defconfig CONFIG_MIPS_MT_SMP is explicitly disabled
since enabling SMP implicitly disables CONFIG_KVM_GUEST, which depends
on CONFIG_BROKEN_ON_SMP.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16947/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Paul Burton 2017-08-07 16:01:16 -07:00 committed by Ralf Baechle
parent a4c2f79787
commit 5cbf968803
6 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/mips/Kconfig
View File

@ -2249,6 +2249,7 @@ config CPU_R4K_CACHE_TLB
config MIPS_MT_SMP
bool "MIPS MT SMP support (1 TC on each available VPE)"
default y
depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
select CPU_MIPSR2_IRQ_VI
select CPU_MIPSR2_IRQ_EI

1
arch/mips/configs/malta_defconfig
View File

@ -2,7 +2,6 @@ CONFIG_MIPS_MALTA=y
CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y
CONFIG_PAGE_SIZE_16KB=y
CONFIG_MIPS_MT_SMP=y
CONFIG_NR_CPUS=8
CONFIG_HZ_100=y
CONFIG_SYSVIPC=y

1
arch/mips/configs/malta_kvm_defconfig
View File

@ -2,7 +2,6 @@ CONFIG_MIPS_MALTA=y
CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y
CONFIG_PAGE_SIZE_16KB=y
CONFIG_MIPS_MT_SMP=y
CONFIG_NR_CPUS=8
CONFIG_HZ_100=y
CONFIG_SYSVIPC=y

1
arch/mips/configs/malta_kvm_guest_defconfig
View File

@ -3,6 +3,7 @@ CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y
CONFIG_KVM_GUEST=y
CONFIG_PAGE_SIZE_16KB=y
# CONFIG_MIPS_MT_SMP is not set
CONFIG_HZ_100=y
CONFIG_SYSVIPC=y
CONFIG_NO_HZ=y

1
arch/mips/configs/maltasmvp_defconfig
View File

@ -2,7 +2,6 @@ CONFIG_MIPS_MALTA=y
CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y
CONFIG_PAGE_SIZE_16KB=y
CONFIG_MIPS_MT_SMP=y
CONFIG_SCHED_SMT=y
CONFIG_MIPS_CPS=y
CONFIG_NR_CPUS=8

1
arch/mips/configs/maltasmvp_eva_defconfig
View File

@ -3,7 +3,6 @@ CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y
CONFIG_CPU_MIPS32_3_5_FEATURES=y
CONFIG_PAGE_SIZE_16KB=y
CONFIG_MIPS_MT_SMP=y
CONFIG_SCHED_SMT=y
CONFIG_MIPS_CPS=y
CONFIG_NR_CPUS=8