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usr/src/linux-headers-5.15.0-142/arch/parisc/include/asm/jump_label.h 0000644 00000001736 15030537214 0020637 0 ustar 00 /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_PARISC_JUMP_LABEL_H #define _ASM_PARISC_JUMP_LABEL_H #ifndef __ASSEMBLY__ #include <linux/types.h> #include <asm/assembly.h> #define JUMP_LABEL_NOP_SIZE 4 static __always_inline bool arch_static_branch(struct static_key *key, bool branch) { asm_volatile_goto("1:\n\t" "nop\n\t" ".pushsection __jump_table, \"aw\"\n\t" ".word 1b - ., %l[l_yes] - .\n\t" __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" ".popsection\n\t" : : "i" (&((char *)key)[branch]) : : l_yes); return false; l_yes: return true; } static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch) { asm_volatile_goto("1:\n\t" "b,n %l[l_yes]\n\t" ".pushsection __jump_table, \"aw\"\n\t" ".word 1b - ., %l[l_yes] - .\n\t" __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" ".popsection\n\t" : : "i" (&((char *)key)[branch]) : : l_yes); return false; l_yes: return true; } #endif /* __ASSEMBLY__ */ #endif usr/src/linux-headers-5.15.0-133/arch/arm/include/asm/jump_label.h 0000644 00000001761 15030541465 0020136 0 ustar 00 /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_ARM_JUMP_LABEL_H #define _ASM_ARM_JUMP_LABEL_H #ifndef __ASSEMBLY__ #include <linux/types.h> #include <asm/unified.h> #define JUMP_LABEL_NOP_SIZE 4 static __always_inline bool arch_static_branch(struct static_key *key, bool branch) { asm_volatile_goto("1:\n\t" WASM(nop) "\n\t" ".pushsection __jump_table, \"aw\"\n\t" ".word 1b, %l[l_yes], %c0\n\t" ".popsection\n\t" : : "i" (&((char *)key)[branch]) : : l_yes); return false; l_yes: return true; } static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch) { asm_volatile_goto("1:\n\t" WASM(b) " %l[l_yes]\n\t" ".pushsection __jump_table, \"aw\"\n\t" ".word 1b, %l[l_yes], %c0\n\t" ".popsection\n\t" : : "i" (&((char *)key)[branch]) : : l_yes); return false; l_yes: return true; } typedef u32 jump_label_t; struct jump_entry { jump_label_t code; jump_label_t target; jump_label_t key; }; #endif /* __ASSEMBLY__ */ #endif usr/src/linux-headers-5.15.0-142/arch/arc/include/asm/jump_label.h 0000644 00000003670 15030566155 0020130 0 ustar 00 /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_ARC_JUMP_LABEL_H #define _ASM_ARC_JUMP_LABEL_H #ifndef __ASSEMBLY__ #include <linux/stringify.h> #include <linux/types.h> #define JUMP_LABEL_NOP_SIZE 4 /* * NOTE about '.balign 4': * * To make atomic update of patched instruction available we need to guarantee * that this instruction doesn't cross L1 cache line boundary. * * As of today we simply align instruction which can be patched by 4 byte using * ".balign 4" directive. In that case patched instruction is aligned with one * 16-bit NOP_S if this is required. * However 'align by 4' directive is much stricter than it actually required. * It's enough that our 32-bit instruction don't cross L1 cache line boundary / * L1 I$ fetch block boundary which can be achieved by using * ".bundle_align_mode" assembler directive. That will save us from adding * useless NOP_S padding in most of the cases. * * TODO: switch to ".bundle_align_mode" directive using whin it will be * supported by ARC toolchain. */ static __always_inline bool arch_static_branch(struct static_key *key, bool branch) { asm_volatile_goto(".balign "__stringify(JUMP_LABEL_NOP_SIZE)" \n" "1: \n" "nop \n" ".pushsection __jump_table, \"aw\" \n" ".word 1b, %l[l_yes], %c0 \n" ".popsection \n" : : "i" (&((char *)key)[branch]) : : l_yes); return false; l_yes: return true; } static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch) { asm_volatile_goto(".balign "__stringify(JUMP_LABEL_NOP_SIZE)" \n" "1: \n" "b %l[l_yes] \n" ".pushsection __jump_table, \"aw\" \n" ".word 1b, %l[l_yes], %c0 \n" ".popsection \n" : : "i" (&((char *)key)[branch]) : : l_yes); return false; l_yes: return true; } typedef u32 jump_label_t; struct jump_entry { jump_label_t code; jump_label_t target; jump_label_t key; }; #endif /* __ASSEMBLY__ */ #endif usr/src/linux-headers-5.15.0-141/arch/parisc/include/asm/jump_label.h 0000644 00000001736 15030614777 0020650 0 ustar 00 /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_PARISC_JUMP_LABEL_H #define _ASM_PARISC_JUMP_LABEL_H #ifndef __ASSEMBLY__ #include <linux/types.h> #include <asm/assembly.h> #define JUMP_LABEL_NOP_SIZE 4 static __always_inline bool arch_static_branch(struct static_key *key, bool branch) { asm_volatile_goto("1:\n\t" "nop\n\t" ".pushsection __jump_table, \"aw\"\n\t" ".word 1b - ., %l[l_yes] - .\n\t" __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" ".popsection\n\t" : : "i" (&((char *)key)[branch]) : : l_yes); return false; l_yes: return true; } static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch) { asm_volatile_goto("1:\n\t" "b,n %l[l_yes]\n\t" ".pushsection __jump_table, \"aw\"\n\t" ".word 1b - ., %l[l_yes] - .\n\t" __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" ".popsection\n\t" : : "i" (&((char *)key)[branch]) : : l_yes); return false; l_yes: return true; } #endif /* __ASSEMBLY__ */ #endif
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