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(parent: f209132) | patch
LoongArch: Add Loongson Binary Translation (LBT) extension support
authorQi Hu <huqi@loongson.cn>
Wed, 6 Sep 2023 14:53:55 +0000 (22:53 +0800)
committerHuacai Chen <chenhuacai@loongson.cn>
Wed, 6 Sep 2023 14:53:55 +0000 (22:53 +0800)
commitbd3c5798484aa9a08302a844d7a75a2ee3b53d05
tree338b637a5062d6a6e97b342691b2969a4ef3bd80tree | snapshot
parentf2091321044d9fbcadb93dfc1c9cf23e563ea40ccommit | diff
LoongArch: Add Loongson Binary Translation (LBT) extension support

Loongson Binary Translation (LBT) is used to accelerate binary translation,
which contains 4 scratch registers (scr0 to scr3), x86/ARM eflags (eflags)
and x87 fpu stack pointer (ftop).

This patch support kernel to save/restore these registers, handle the LBT
exception and maintain sigcontext.

Signed-off-by: Qi Hu <huqi@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
19 files changed:
arch/loongarch/Kconfig diff | blob | history
arch/loongarch/include/asm/asm-prototypes.h diff | blob | history
arch/loongarch/include/asm/asmmacro.h diff | blob | history
arch/loongarch/include/asm/lbt.h [new file with mode: 0644] blob
arch/loongarch/include/asm/loongarch.h diff | blob | history
arch/loongarch/include/asm/processor.h diff | blob | history
arch/loongarch/include/asm/switch_to.h diff | blob | history
arch/loongarch/include/asm/thread_info.h diff | blob | history
arch/loongarch/include/uapi/asm/ptrace.h diff | blob | history
arch/loongarch/include/uapi/asm/sigcontext.h diff | blob | history
arch/loongarch/kernel/Makefile diff | blob | history
arch/loongarch/kernel/asm-offsets.c diff | blob | history
arch/loongarch/kernel/cpu-probe.c diff | blob | history
arch/loongarch/kernel/fpu.S diff | blob | history
arch/loongarch/kernel/lbt.S [new file with mode: 0644] blob
arch/loongarch/kernel/process.c diff | blob | history
arch/loongarch/kernel/ptrace.c diff | blob | history
arch/loongarch/kernel/signal.c diff | blob | history
arch/loongarch/kernel/traps.c diff | blob | history
Domain: System / Kernel;