mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-29 15:43:59 +08:00
ec0c464cdb
This patch moves ASM_CONST() and stringify_in_c() into dedicated asm-const.h, then cleans all related inclusions. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> [mpe: asm-compat.h should include asm-const.h] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
239 lines
8.0 KiB
C
239 lines
8.0 KiB
C
#ifndef __ASM_POWERPC_FEATURE_FIXUPS_H
|
|
#define __ASM_POWERPC_FEATURE_FIXUPS_H
|
|
|
|
#include <asm/asm-const.h>
|
|
|
|
/*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
/*
|
|
* Feature section common macros
|
|
*
|
|
* Note that the entries now contain offsets between the table entry
|
|
* and the code rather than absolute code pointers in order to be
|
|
* useable with the vdso shared library. There is also an assumption
|
|
* that values will be negative, that is, the fixup table has to be
|
|
* located after the code it fixes up.
|
|
*/
|
|
#if defined(CONFIG_PPC64) && !defined(__powerpc64__)
|
|
/* 64 bits kernel, 32 bits code (ie. vdso32) */
|
|
#define FTR_ENTRY_LONG .8byte
|
|
#define FTR_ENTRY_OFFSET .long 0xffffffff; .long
|
|
#elif defined(CONFIG_PPC64)
|
|
#define FTR_ENTRY_LONG .8byte
|
|
#define FTR_ENTRY_OFFSET .8byte
|
|
#else
|
|
#define FTR_ENTRY_LONG .long
|
|
#define FTR_ENTRY_OFFSET .long
|
|
#endif
|
|
|
|
#define START_FTR_SECTION(label) label##1:
|
|
|
|
#define FTR_SECTION_ELSE_NESTED(label) \
|
|
label##2: \
|
|
.pushsection __ftr_alt_##label,"a"; \
|
|
.align 2; \
|
|
label##3:
|
|
|
|
#define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \
|
|
label##4: \
|
|
.popsection; \
|
|
.pushsection sect,"a"; \
|
|
.align 3; \
|
|
label##5: \
|
|
FTR_ENTRY_LONG msk; \
|
|
FTR_ENTRY_LONG val; \
|
|
FTR_ENTRY_OFFSET label##1b-label##5b; \
|
|
FTR_ENTRY_OFFSET label##2b-label##5b; \
|
|
FTR_ENTRY_OFFSET label##3b-label##5b; \
|
|
FTR_ENTRY_OFFSET label##4b-label##5b; \
|
|
.ifgt (label##4b- label##3b)-(label##2b- label##1b); \
|
|
.error "Feature section else case larger than body"; \
|
|
.endif; \
|
|
.popsection;
|
|
|
|
|
|
/* CPU feature dependent sections */
|
|
#define BEGIN_FTR_SECTION_NESTED(label) START_FTR_SECTION(label)
|
|
#define BEGIN_FTR_SECTION START_FTR_SECTION(97)
|
|
|
|
#define END_FTR_SECTION_NESTED(msk, val, label) \
|
|
FTR_SECTION_ELSE_NESTED(label) \
|
|
MAKE_FTR_SECTION_ENTRY(msk, val, label, __ftr_fixup)
|
|
|
|
#define END_FTR_SECTION(msk, val) \
|
|
END_FTR_SECTION_NESTED(msk, val, 97)
|
|
|
|
#define END_FTR_SECTION_NESTED_IFSET(msk, label) \
|
|
END_FTR_SECTION_NESTED((msk), (msk), label)
|
|
|
|
#define END_FTR_SECTION_IFSET(msk) END_FTR_SECTION((msk), (msk))
|
|
#define END_FTR_SECTION_IFCLR(msk) END_FTR_SECTION((msk), 0)
|
|
|
|
/* CPU feature sections with alternatives, use BEGIN_FTR_SECTION to start */
|
|
#define FTR_SECTION_ELSE FTR_SECTION_ELSE_NESTED(97)
|
|
#define ALT_FTR_SECTION_END_NESTED(msk, val, label) \
|
|
MAKE_FTR_SECTION_ENTRY(msk, val, label, __ftr_fixup)
|
|
#define ALT_FTR_SECTION_END_NESTED_IFSET(msk, label) \
|
|
ALT_FTR_SECTION_END_NESTED(msk, msk, label)
|
|
#define ALT_FTR_SECTION_END_NESTED_IFCLR(msk, label) \
|
|
ALT_FTR_SECTION_END_NESTED(msk, 0, label)
|
|
#define ALT_FTR_SECTION_END(msk, val) \
|
|
ALT_FTR_SECTION_END_NESTED(msk, val, 97)
|
|
#define ALT_FTR_SECTION_END_IFSET(msk) \
|
|
ALT_FTR_SECTION_END_NESTED_IFSET(msk, 97)
|
|
#define ALT_FTR_SECTION_END_IFCLR(msk) \
|
|
ALT_FTR_SECTION_END_NESTED_IFCLR(msk, 97)
|
|
|
|
/* MMU feature dependent sections */
|
|
#define BEGIN_MMU_FTR_SECTION_NESTED(label) START_FTR_SECTION(label)
|
|
#define BEGIN_MMU_FTR_SECTION START_FTR_SECTION(97)
|
|
|
|
#define END_MMU_FTR_SECTION_NESTED(msk, val, label) \
|
|
FTR_SECTION_ELSE_NESTED(label) \
|
|
MAKE_FTR_SECTION_ENTRY(msk, val, label, __mmu_ftr_fixup)
|
|
|
|
#define END_MMU_FTR_SECTION(msk, val) \
|
|
END_MMU_FTR_SECTION_NESTED(msk, val, 97)
|
|
|
|
#define END_MMU_FTR_SECTION_IFSET(msk) END_MMU_FTR_SECTION((msk), (msk))
|
|
#define END_MMU_FTR_SECTION_IFCLR(msk) END_MMU_FTR_SECTION((msk), 0)
|
|
|
|
/* MMU feature sections with alternatives, use BEGIN_FTR_SECTION to start */
|
|
#define MMU_FTR_SECTION_ELSE_NESTED(label) FTR_SECTION_ELSE_NESTED(label)
|
|
#define MMU_FTR_SECTION_ELSE MMU_FTR_SECTION_ELSE_NESTED(97)
|
|
#define ALT_MMU_FTR_SECTION_END_NESTED(msk, val, label) \
|
|
MAKE_FTR_SECTION_ENTRY(msk, val, label, __mmu_ftr_fixup)
|
|
#define ALT_MMU_FTR_SECTION_END_NESTED_IFSET(msk, label) \
|
|
ALT_MMU_FTR_SECTION_END_NESTED(msk, msk, label)
|
|
#define ALT_MMU_FTR_SECTION_END_NESTED_IFCLR(msk, label) \
|
|
ALT_MMU_FTR_SECTION_END_NESTED(msk, 0, label)
|
|
#define ALT_MMU_FTR_SECTION_END(msk, val) \
|
|
ALT_MMU_FTR_SECTION_END_NESTED(msk, val, 97)
|
|
#define ALT_MMU_FTR_SECTION_END_IFSET(msk) \
|
|
ALT_MMU_FTR_SECTION_END_NESTED_IFSET(msk, 97)
|
|
#define ALT_MMU_FTR_SECTION_END_IFCLR(msk) \
|
|
ALT_MMU_FTR_SECTION_END_NESTED_IFCLR(msk, 97)
|
|
|
|
/* Firmware feature dependent sections */
|
|
#define BEGIN_FW_FTR_SECTION_NESTED(label) START_FTR_SECTION(label)
|
|
#define BEGIN_FW_FTR_SECTION START_FTR_SECTION(97)
|
|
|
|
#define END_FW_FTR_SECTION_NESTED(msk, val, label) \
|
|
FTR_SECTION_ELSE_NESTED(label) \
|
|
MAKE_FTR_SECTION_ENTRY(msk, val, label, __fw_ftr_fixup)
|
|
|
|
#define END_FW_FTR_SECTION(msk, val) \
|
|
END_FW_FTR_SECTION_NESTED(msk, val, 97)
|
|
|
|
#define END_FW_FTR_SECTION_IFSET(msk) END_FW_FTR_SECTION((msk), (msk))
|
|
#define END_FW_FTR_SECTION_IFCLR(msk) END_FW_FTR_SECTION((msk), 0)
|
|
|
|
/* Firmware feature sections with alternatives */
|
|
#define FW_FTR_SECTION_ELSE_NESTED(label) FTR_SECTION_ELSE_NESTED(label)
|
|
#define FW_FTR_SECTION_ELSE FTR_SECTION_ELSE_NESTED(97)
|
|
#define ALT_FW_FTR_SECTION_END_NESTED(msk, val, label) \
|
|
MAKE_FTR_SECTION_ENTRY(msk, val, label, __fw_ftr_fixup)
|
|
#define ALT_FW_FTR_SECTION_END_NESTED_IFSET(msk, label) \
|
|
ALT_FW_FTR_SECTION_END_NESTED(msk, msk, label)
|
|
#define ALT_FW_FTR_SECTION_END_NESTED_IFCLR(msk, label) \
|
|
ALT_FW_FTR_SECTION_END_NESTED(msk, 0, label)
|
|
#define ALT_FW_FTR_SECTION_END(msk, val) \
|
|
ALT_FW_FTR_SECTION_END_NESTED(msk, val, 97)
|
|
#define ALT_FW_FTR_SECTION_END_IFSET(msk) \
|
|
ALT_FW_FTR_SECTION_END_NESTED_IFSET(msk, 97)
|
|
#define ALT_FW_FTR_SECTION_END_IFCLR(msk) \
|
|
ALT_FW_FTR_SECTION_END_NESTED_IFCLR(msk, 97)
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#define ASM_FTR_IF(section_if, section_else, msk, val) \
|
|
stringify_in_c(BEGIN_FTR_SECTION) \
|
|
section_if "; " \
|
|
stringify_in_c(FTR_SECTION_ELSE) \
|
|
section_else "; " \
|
|
stringify_in_c(ALT_FTR_SECTION_END((msk), (val)))
|
|
|
|
#define ASM_FTR_IFSET(section_if, section_else, msk) \
|
|
ASM_FTR_IF(section_if, section_else, (msk), (msk))
|
|
|
|
#define ASM_FTR_IFCLR(section_if, section_else, msk) \
|
|
ASM_FTR_IF(section_if, section_else, (msk), 0)
|
|
|
|
#define ASM_MMU_FTR_IF(section_if, section_else, msk, val) \
|
|
stringify_in_c(BEGIN_MMU_FTR_SECTION) \
|
|
section_if "; " \
|
|
stringify_in_c(MMU_FTR_SECTION_ELSE) \
|
|
section_else "; " \
|
|
stringify_in_c(ALT_MMU_FTR_SECTION_END((msk), (val)))
|
|
|
|
#define ASM_MMU_FTR_IFSET(section_if, section_else, msk) \
|
|
ASM_MMU_FTR_IF(section_if, section_else, (msk), (msk))
|
|
|
|
#define ASM_MMU_FTR_IFCLR(section_if, section_else, msk) \
|
|
ASM_MMU_FTR_IF(section_if, section_else, (msk), 0)
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
/* LWSYNC feature sections */
|
|
#define START_LWSYNC_SECTION(label) label##1:
|
|
#define MAKE_LWSYNC_SECTION_ENTRY(label, sect) \
|
|
label##2: \
|
|
.pushsection sect,"a"; \
|
|
.align 2; \
|
|
label##3: \
|
|
FTR_ENTRY_OFFSET label##1b-label##3b; \
|
|
.popsection;
|
|
|
|
#define STF_ENTRY_BARRIER_FIXUP_SECTION \
|
|
953: \
|
|
.pushsection __stf_entry_barrier_fixup,"a"; \
|
|
.align 2; \
|
|
954: \
|
|
FTR_ENTRY_OFFSET 953b-954b; \
|
|
.popsection;
|
|
|
|
#define STF_EXIT_BARRIER_FIXUP_SECTION \
|
|
955: \
|
|
.pushsection __stf_exit_barrier_fixup,"a"; \
|
|
.align 2; \
|
|
956: \
|
|
FTR_ENTRY_OFFSET 955b-956b; \
|
|
.popsection;
|
|
|
|
#define RFI_FLUSH_FIXUP_SECTION \
|
|
951: \
|
|
.pushsection __rfi_flush_fixup,"a"; \
|
|
.align 2; \
|
|
952: \
|
|
FTR_ENTRY_OFFSET 951b-952b; \
|
|
.popsection;
|
|
|
|
#define NOSPEC_BARRIER_FIXUP_SECTION \
|
|
953: \
|
|
.pushsection __barrier_nospec_fixup,"a"; \
|
|
.align 2; \
|
|
954: \
|
|
FTR_ENTRY_OFFSET 953b-954b; \
|
|
.popsection;
|
|
|
|
|
|
#ifndef __ASSEMBLY__
|
|
#include <linux/types.h>
|
|
|
|
extern long stf_barrier_fallback;
|
|
extern long __start___stf_entry_barrier_fixup, __stop___stf_entry_barrier_fixup;
|
|
extern long __start___stf_exit_barrier_fixup, __stop___stf_exit_barrier_fixup;
|
|
extern long __start___rfi_flush_fixup, __stop___rfi_flush_fixup;
|
|
extern long __start___barrier_nospec_fixup, __stop___barrier_nospec_fixup;
|
|
|
|
void apply_feature_fixups(void);
|
|
void setup_feature_keys(void);
|
|
#endif
|
|
|
|
#endif /* __ASM_POWERPC_FEATURE_FIXUPS_H */
|