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linux/arch/mips/include/asm/asm-eva.h

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MIPS: asm: Add wrappers for EVA/non-EVA instructions EVA uses specific instructions for accessing user memory. Instead of polluting the kernel with numerous #ifdef CONFIG_EVA we add wrappers for all the instructions that need special handling when EVA is enabled. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2013-12-04 17:56:03 +04:00
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2014 Imagination Technologies Ltd.
*
*/
#ifndef __ASM_ASM_EVA_H
#define __ASM_ASM_EVA_H
#ifndef __ASSEMBLY__
MIPS: asm: asm-eva: Introduce kernel load/store variants Introduce new macros for kernel load/store variants which will be used to perform regular kernel space load/store operations in EVA mode. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: <stable@vger.kernel.org> # v3.15+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9500/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-09 17:54:49 +03:00
/* Kernel variants */
#define kernel_cache(op, base) "cache " op ", " base "\n"
#define kernel_ll(reg, addr) "ll " reg ", " addr "\n"
#define kernel_sc(reg, addr) "sc " reg ", " addr "\n"
#define kernel_lw(reg, addr) "lw " reg ", " addr "\n"
#define kernel_lwl(reg, addr) "lwl " reg ", " addr "\n"
#define kernel_lwr(reg, addr) "lwr " reg ", " addr "\n"
#define kernel_lh(reg, addr) "lh " reg ", " addr "\n"
#define kernel_lb(reg, addr) "lb " reg ", " addr "\n"
#define kernel_lbu(reg, addr) "lbu " reg ", " addr "\n"
#define kernel_sw(reg, addr) "sw " reg ", " addr "\n"
#define kernel_swl(reg, addr) "swl " reg ", " addr "\n"
#define kernel_swr(reg, addr) "swr " reg ", " addr "\n"
#define kernel_sh(reg, addr) "sh " reg ", " addr "\n"
#define kernel_sb(reg, addr) "sb " reg ", " addr "\n"
#ifdef CONFIG_32BIT
/*
* No 'sd' or 'ld' instructions in 32-bit but the code will
* do the correct thing
*/
#define kernel_sd(reg, addr) user_sw(reg, addr)
#define kernel_ld(reg, addr) user_lw(reg, addr)
#else
#define kernel_sd(reg, addr) "sd " reg", " addr "\n"
#define kernel_ld(reg, addr) "ld " reg", " addr "\n"
#endif /* CONFIG_32BIT */
MIPS: asm: Add wrappers for EVA/non-EVA instructions EVA uses specific instructions for accessing user memory. Instead of polluting the kernel with numerous #ifdef CONFIG_EVA we add wrappers for all the instructions that need special handling when EVA is enabled. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2013-12-04 17:56:03 +04:00
#ifdef CONFIG_EVA
#define __BUILD_EVA_INSN(insn, reg, addr) \
" .set push\n" \
" .set mips0\n" \
" .set eva\n" \
" "insn" "reg", "addr "\n" \
" .set pop\n"
#define user_cache(op, base) __BUILD_EVA_INSN("cachee", op, base)
#define user_ll(reg, addr) __BUILD_EVA_INSN("lle", reg, addr)
#define user_sc(reg, addr) __BUILD_EVA_INSN("sce", reg, addr)
#define user_lw(reg, addr) __BUILD_EVA_INSN("lwe", reg, addr)
#define user_lwl(reg, addr) __BUILD_EVA_INSN("lwle", reg, addr)
#define user_lwr(reg, addr) __BUILD_EVA_INSN("lwre", reg, addr)
#define user_lh(reg, addr) __BUILD_EVA_INSN("lhe", reg, addr)
#define user_lb(reg, addr) __BUILD_EVA_INSN("lbe", reg, addr)
#define user_lbu(reg, addr) __BUILD_EVA_INSN("lbue", reg, addr)
/* No 64-bit EVA instruction for loading double words */
#define user_ld(reg, addr) user_lw(reg, addr)
#define user_sw(reg, addr) __BUILD_EVA_INSN("swe", reg, addr)
#define user_swl(reg, addr) __BUILD_EVA_INSN("swle", reg, addr)
#define user_swr(reg, addr) __BUILD_EVA_INSN("swre", reg, addr)
#define user_sh(reg, addr) __BUILD_EVA_INSN("she", reg, addr)
#define user_sb(reg, addr) __BUILD_EVA_INSN("sbe", reg, addr)
/* No 64-bit EVA instruction for storing double words */
#define user_sd(reg, addr) user_sw(reg, addr)
#else
MIPS: asm: asm-eva: Introduce kernel load/store variants Introduce new macros for kernel load/store variants which will be used to perform regular kernel space load/store operations in EVA mode. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: <stable@vger.kernel.org> # v3.15+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9500/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-09 17:54:49 +03:00
#define user_cache(op, base) kernel_cache(op, base)
#define user_ll(reg, addr) kernel_ll(reg, addr)
#define user_sc(reg, addr) kernel_sc(reg, addr)
#define user_lw(reg, addr) kernel_lw(reg, addr)
#define user_lwl(reg, addr) kernel_lwl(reg, addr)
#define user_lwr(reg, addr) kernel_lwr(reg, addr)
#define user_lh(reg, addr) kernel_lh(reg, addr)
#define user_lb(reg, addr) kernel_lb(reg, addr)
#define user_lbu(reg, addr) kernel_lbu(reg, addr)
#define user_sw(reg, addr) kernel_sw(reg, addr)
#define user_swl(reg, addr) kernel_swl(reg, addr)
#define user_swr(reg, addr) kernel_swr(reg, addr)
#define user_sh(reg, addr) kernel_sh(reg, addr)
#define user_sb(reg, addr) kernel_sb(reg, addr)
MIPS: asm: Add wrappers for EVA/non-EVA instructions EVA uses specific instructions for accessing user memory. Instead of polluting the kernel with numerous #ifdef CONFIG_EVA we add wrappers for all the instructions that need special handling when EVA is enabled. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2013-12-04 17:56:03 +04:00
#ifdef CONFIG_32BIT
MIPS: asm: asm-eva: Introduce kernel load/store variants Introduce new macros for kernel load/store variants which will be used to perform regular kernel space load/store operations in EVA mode. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: <stable@vger.kernel.org> # v3.15+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9500/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-09 17:54:49 +03:00
#define user_sd(reg, addr) kernel_sw(reg, addr)
#define user_ld(reg, addr) kernel_lw(reg, addr)
MIPS: asm: Add wrappers for EVA/non-EVA instructions EVA uses specific instructions for accessing user memory. Instead of polluting the kernel with numerous #ifdef CONFIG_EVA we add wrappers for all the instructions that need special handling when EVA is enabled. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2013-12-04 17:56:03 +04:00
#else
MIPS: asm: asm-eva: Introduce kernel load/store variants Introduce new macros for kernel load/store variants which will be used to perform regular kernel space load/store operations in EVA mode. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: <stable@vger.kernel.org> # v3.15+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9500/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-09 17:54:49 +03:00
#define user_sd(reg, addr) kernel_sd(reg, addr)
#define user_ld(reg, addr) kernel_ld(reg, addr)
MIPS: asm: Add wrappers for EVA/non-EVA instructions EVA uses specific instructions for accessing user memory. Instead of polluting the kernel with numerous #ifdef CONFIG_EVA we add wrappers for all the instructions that need special handling when EVA is enabled. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2013-12-04 17:56:03 +04:00
#endif /* CONFIG_32BIT */
#endif /* CONFIG_EVA */
#else /* __ASSEMBLY__ */
MIPS: asm: asm-eva: Introduce kernel load/store variants Introduce new macros for kernel load/store variants which will be used to perform regular kernel space load/store operations in EVA mode. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: <stable@vger.kernel.org> # v3.15+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9500/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-09 17:54:49 +03:00
#define kernel_cache(op, base) cache op, base
#define kernel_ll(reg, addr) ll reg, addr
#define kernel_sc(reg, addr) sc reg, addr
#define kernel_lw(reg, addr) lw reg, addr
#define kernel_lwl(reg, addr) lwl reg, addr
#define kernel_lwr(reg, addr) lwr reg, addr
#define kernel_lh(reg, addr) lh reg, addr
#define kernel_lb(reg, addr) lb reg, addr
#define kernel_lbu(reg, addr) lbu reg, addr
#define kernel_sw(reg, addr) sw reg, addr
#define kernel_swl(reg, addr) swl reg, addr
#define kernel_swr(reg, addr) swr reg, addr
#define kernel_sh(reg, addr) sh reg, addr
#define kernel_sb(reg, addr) sb reg, addr
#ifdef CONFIG_32BIT
/*
* No 'sd' or 'ld' instructions in 32-bit but the code will
* do the correct thing
*/
#define kernel_sd(reg, addr) user_sw(reg, addr)
#define kernel_ld(reg, addr) user_lw(reg, addr)
#else
#define kernel_sd(reg, addr) sd reg, addr
#define kernel_ld(reg, addr) ld reg, addr
#endif /* CONFIG_32BIT */
MIPS: asm: Add wrappers for EVA/non-EVA instructions EVA uses specific instructions for accessing user memory. Instead of polluting the kernel with numerous #ifdef CONFIG_EVA we add wrappers for all the instructions that need special handling when EVA is enabled. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2013-12-04 17:56:03 +04:00
#ifdef CONFIG_EVA
#define __BUILD_EVA_INSN(insn, reg, addr) \
.set push; \
.set mips0; \
.set eva; \
insn reg, addr; \
.set pop;
#define user_cache(op, base) __BUILD_EVA_INSN(cachee, op, base)
#define user_ll(reg, addr) __BUILD_EVA_INSN(lle, reg, addr)
#define user_sc(reg, addr) __BUILD_EVA_INSN(sce, reg, addr)
#define user_lw(reg, addr) __BUILD_EVA_INSN(lwe, reg, addr)
#define user_lwl(reg, addr) __BUILD_EVA_INSN(lwle, reg, addr)
#define user_lwr(reg, addr) __BUILD_EVA_INSN(lwre, reg, addr)
#define user_lh(reg, addr) __BUILD_EVA_INSN(lhe, reg, addr)
#define user_lb(reg, addr) __BUILD_EVA_INSN(lbe, reg, addr)
#define user_lbu(reg, addr) __BUILD_EVA_INSN(lbue, reg, addr)
/* No 64-bit EVA instruction for loading double words */
#define user_ld(reg, addr) user_lw(reg, addr)
#define user_sw(reg, addr) __BUILD_EVA_INSN(swe, reg, addr)
#define user_swl(reg, addr) __BUILD_EVA_INSN(swle, reg, addr)
#define user_swr(reg, addr) __BUILD_EVA_INSN(swre, reg, addr)
#define user_sh(reg, addr) __BUILD_EVA_INSN(she, reg, addr)
#define user_sb(reg, addr) __BUILD_EVA_INSN(sbe, reg, addr)
/* No 64-bit EVA instruction for loading double words */
#define user_sd(reg, addr) user_sw(reg, addr)
#else
MIPS: asm: asm-eva: Introduce kernel load/store variants Introduce new macros for kernel load/store variants which will be used to perform regular kernel space load/store operations in EVA mode. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: <stable@vger.kernel.org> # v3.15+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9500/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-09 17:54:49 +03:00
#define user_cache(op, base) kernel_cache(op, base)
#define user_ll(reg, addr) kernel_ll(reg, addr)
#define user_sc(reg, addr) kernel_sc(reg, addr)
#define user_lw(reg, addr) kernel_lw(reg, addr)
#define user_lwl(reg, addr) kernel_lwl(reg, addr)
#define user_lwr(reg, addr) kernel_lwr(reg, addr)
#define user_lh(reg, addr) kernel_lh(reg, addr)
#define user_lb(reg, addr) kernel_lb(reg, addr)
#define user_lbu(reg, addr) kernel_lbu(reg, addr)
#define user_sw(reg, addr) kernel_sw(reg, addr)
#define user_swl(reg, addr) kernel_swl(reg, addr)
#define user_swr(reg, addr) kernel_swr(reg, addr)
#define user_sh(reg, addr) kernel_sh(reg, addr)
#define user_sb(reg, addr) kernel_sb(reg, addr)
MIPS: asm: Add wrappers for EVA/non-EVA instructions EVA uses specific instructions for accessing user memory. Instead of polluting the kernel with numerous #ifdef CONFIG_EVA we add wrappers for all the instructions that need special handling when EVA is enabled. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2013-12-04 17:56:03 +04:00
#ifdef CONFIG_32BIT
MIPS: asm: asm-eva: Introduce kernel load/store variants Introduce new macros for kernel load/store variants which will be used to perform regular kernel space load/store operations in EVA mode. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: <stable@vger.kernel.org> # v3.15+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9500/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-09 17:54:49 +03:00
#define user_sd(reg, addr) kernel_sw(reg, addr)
#define user_ld(reg, addr) kernel_lw(reg, addr)
MIPS: asm: Add wrappers for EVA/non-EVA instructions EVA uses specific instructions for accessing user memory. Instead of polluting the kernel with numerous #ifdef CONFIG_EVA we add wrappers for all the instructions that need special handling when EVA is enabled. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2013-12-04 17:56:03 +04:00
#else
MIPS: asm: asm-eva: Introduce kernel load/store variants Introduce new macros for kernel load/store variants which will be used to perform regular kernel space load/store operations in EVA mode. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: <stable@vger.kernel.org> # v3.15+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9500/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-09 17:54:49 +03:00
#define user_sd(reg, addr) kernel_sd(reg, addr)
#define user_ld(reg, addr) kernel_sd(reg, addr)
MIPS: asm: Add wrappers for EVA/non-EVA instructions EVA uses specific instructions for accessing user memory. Instead of polluting the kernel with numerous #ifdef CONFIG_EVA we add wrappers for all the instructions that need special handling when EVA is enabled. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2013-12-04 17:56:03 +04:00
#endif /* CONFIG_32BIT */
#endif /* CONFIG_EVA */
#endif /* __ASSEMBLY__ */
#endif /* __ASM_ASM_EVA_H */
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