Changes in unaligned.c

04816c15 - LoongArch: Add debugfs entries to switch SFB/TSO state

Sun, 26 Jan 2025 13:49:59 +0000

LoongArch: Add debugfs entries to switch SFB/TSO stateWe need to switch SFB (Store Fill Buffer) and TSO (Total Store Order)state at runtime to debug memory management and KVM virtualization, soadd two debugfs entries "sfb_state" and "tso_state" under the directory/sys/kernel/debug/loongarch.Query SFB:cat /sys/kernel/debug/loongarch/sfb_stateEnable SFB:echo 1 > /sys/kernel/debug/loongarch/sfb_stateDisable SFB:echo 0 > /sys/kernel/debug/loongarch/sfb_stateQuery TSO:cat /sys/kernel/debug/loongarch/tso_stateSwitch TSO:echo [TSO] > /sys/kernel/debug/loongarch/tso_stateAvailable [TSO] states:0 (No Load No Store) 1 (All Load No Store) 3 (Same Load No Store)4 (No Load All Store) 5 (All Load All Store) 7 (Same Load All Store)Signed-off-by: Huacai Chen List of files: /linux-6.15/arch/loongarch/kernel/unaligned.c

d7c24960 - LoongArch: Delete unnecessary debugfs checking

Thu, 29 Jun 2023 12:58:42 +0000

LoongArch: Delete unnecessary debugfs checkingDebugfs functions are not supposed to be checked for errors. Thisis sort of unusual but it is described in the comments for thedebugfs_create_dir() function. Also debugfs_create_dir() can neverreturn NULL.Reviewed-by: WANG Xuerui Signed-off-by: Dan Carpenter Signed-off-by: Huacai Chen List of files: /linux-6.15/arch/loongarch/kernel/unaligned.c

41efbb68 - LoongArch: Fix debugfs_create_dir() error checking

Thu, 15 Jun 2023 06:35:56 +0000

LoongArch: Fix debugfs_create_dir() error checkingThe debugfs_create_dir() returns ERR_PTR in case of an error and thecorrect way of checking it is using the IS_ERR_OR_NULL inline functionrather than the simple null comparision. This patch fixes the issue.Cc: stable@vger.kernel.orgSuggested-By: Ivan Orlov Signed-off-by: Immad Mir Signed-off-by: Huacai Chen List of files: /linux-6.15/arch/loongarch/kernel/unaligned.c

61a6fccc - LoongArch: Add unaligned access support

Sat, 10 Dec 2022 14:39:59 +0000

LoongArch: Add unaligned access supportLoongson-2 series (Loongson-2K500, Loongson-2K1000) don't supportunaligned access in hardware, while Loongson-3 series (Loongson-3A5000,Loongson-3C5000) are configurable whether support unaligned access inhardware. This patch add unaligned access emulation for those LoongArchprocessors without hardware support.Signed-off-by: Huacai Chen List of files: /linux-6.15/arch/loongarch/kernel/unaligned.c