AcoSail/kernel_optimize_test
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195615ecc8
kernel_optimize_test/arch/mips
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Huacai Chen 195615ecc8 MIPS: Loongson-3: Enable COP2 usage in kernel 
Loongson-3's COP2 is Multi-Media coprocessor, it is disabled in kernel
mode by default. However, gslq/gssq (16-bytes load/store instructions)
overrides the instruction format of lwc2/swc2. If we wan't to use gslq/
gssq for optimization in kernel, we should enable COP2 usage in kernel.

Please pay attention that in this patch we only enable COP2 in kernel,
which means it will lose ST0_CU2 when a process go to user space (try
to use COP2 in user space will trigger an exception and then grab COP2,
which is similar to FPU). And as a result, we need to modify the context
switching code because the new scheduled process doesn't contain ST0_CU2
in its THERAD_STATUS probably.

For zboot, we disable gslq/gssq be generated by toolchain.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-09-21 22:15:03 +02:00
..
alchemy MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
ar7 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
ath25 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
ath79 MIPS: ath79: Remove unused include <asm/mips_machine.h> 2020-07-28 10:20:44 +02:00
bcm47xx MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
bcm63xx MIPS: BCM63xx: switch to SPDX license identifier 2020-08-17 13:10:31 +02:00
bmips MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
boot MIPS: Loongson-3: Enable COP2 usage in kernel 2020-09-21 22:15:03 +02:00
cavium-octeon MIPS: OCTEON: use devm_platform_ioremap_resource 2020-09-18 15:30:41 +02:00
cobalt MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
configs MIPS: configs: Regenerate configs of Ingenic boards 2020-09-18 16:35:27 +02:00
crypto
dec MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
fw mips: Return proper error code from console ->setup() hook 2020-06-25 14:20:13 +02:00
generic MIPS: jz4740: Rename jz4740 folders to ingenic 2020-09-18 16:35:05 +02:00
include MIPS: Loongson-3: Enable COP2 usage in kernel 2020-09-21 22:15:03 +02:00
ingenic MIPS: jz4740: Rename jz4740 folders to ingenic 2020-09-18 16:35:05 +02:00
jazz mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
kernel MIPS: Loongson-3: Enable COP2 usage in kernel 2020-09-21 22:15:03 +02:00
kvm KVM: MIPS/VZ: Fix build error caused by 'kvm_run' cleanup 2020-08-11 07:19:41 -04:00
lantiq MIPS: lantiq: add missing GPHY clock aliases for ar10 and grx390 2020-08-17 13:01:07 +02:00
lib treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
loongson2ef MIPS: Loongson-2EF: disable fix-loongson3-llsc in compiler 2020-06-22 17:35:31 +02:00
loongson32 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
loongson64 MIPS: Loongson64: Remove unused loongson_reboot. 2020-09-07 22:17:12 +02:00
math-emu MIPS: Use fallthrough for arch/mips 2020-05-07 11:55:47 +02:00
mm MIPS: Get rid of CAVIUM_OCTEON_DCACHE_PREFETCH_WAR 2020-09-07 22:25:16 +02:00
mti-malta MIPS: Fix exception handler memcpy() 2020-05-24 09:15:54 +02:00
net
netlogic MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
oprofile MIPS: Use fallthrough for arch/mips 2020-05-07 11:55:47 +02:00
pci MIPS: pci: use devm_platform_ioremap_resource_byname 2020-09-18 15:29:35 +02:00
pic32 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
pistachio MIPS: Fix exception handler memcpy() 2020-05-24 09:15:54 +02:00
power
ralink This time around we have 4 lines of diff in the core framework, removing a 2020-06-10 11:42:19 -07:00
rb532 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
sgi-ip22 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
sgi-ip27 mm/sparse: cleanup the code surrounding memory_present() 2020-08-07 11:33:27 -07:00
sgi-ip30 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
sgi-ip32 MIPS: SGI-IP32: No need to include mc14818*.h 2020-08-26 12:23:06 +02:00
sibyte MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
sni MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
tools MIPS: tools: Fix resource leak in elf-entry.c 2020-05-24 09:29:48 +02:00
txx9 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
vdso Kbuild updates for v5.9 2020-08-09 14:10:26 -07:00
vr41xx MIPS: Fix builds for VR41xx platforms 2020-05-15 09:09:58 +02:00
Kbuild MIPS: Fix "make clean" error due to recent changes 2020-05-13 13:20:22 +02:00
Kbuild.platforms MIPS: generic: Add support for Ingenic SoCs 2020-09-18 16:33:59 +02:00
Kconfig MIPS: jz4740: Rename jz4740 folders to ingenic 2020-09-18 16:35:05 +02:00
Kconfig.debug mips: Add CPS_NS16550_WIDTH config 2020-05-22 09:12:52 +02:00
Makefile mips: Add MIPS Warrior P5600 support 2020-05-22 09:10:53 +02:00
Makefile.postlink