Skip to content

Commit

Permalink
MIPS: asm: asm-eva: Introduce kernel load/store variants
Browse files Browse the repository at this point in the history 
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>
  • Loading branch information
Markos Chandras authored and Ralf Baechle committed Apr 10, 2015
1 parent 872cd4c commit 60cd7e0
Showing 1 changed file with 93 additions and 44 deletions.
137 changes: 93 additions & 44 deletions arch/mips/include/asm/asm-eva.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,36 @@
#define __ASM_ASM_EVA_H

#ifndef __ASSEMBLY__

/* 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 */

#ifdef CONFIG_EVA

#define __BUILD_EVA_INSN(insn, reg, addr) \
Expand Down Expand Up @@ -41,37 +71,60 @@

#else

#define user_cache(op, base) "cache " op ", " base "\n"
#define user_ll(reg, addr) "ll " reg ", " addr "\n"
#define user_sc(reg, addr) "sc " reg ", " addr "\n"
#define user_lw(reg, addr) "lw " reg ", " addr "\n"
#define user_lwl(reg, addr) "lwl " reg ", " addr "\n"
#define user_lwr(reg, addr) "lwr " reg ", " addr "\n"
#define user_lh(reg, addr) "lh " reg ", " addr "\n"
#define user_lb(reg, addr) "lb " reg ", " addr "\n"
#define user_lbu(reg, addr) "lbu " reg ", " addr "\n"
#define user_sw(reg, addr) "sw " reg ", " addr "\n"
#define user_swl(reg, addr) "swl " reg ", " addr "\n"
#define user_swr(reg, addr) "swr " reg ", " addr "\n"
#define user_sh(reg, addr) "sh " reg ", " addr "\n"
#define user_sb(reg, addr) "sb " reg ", " addr "\n"
#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)

#ifdef CONFIG_32BIT
/*
* No 'sd' or 'ld' instructions in 32-bit but the code will
* do the correct thing
*/
#define user_sd(reg, addr) user_sw(reg, addr)
#define user_ld(reg, addr) user_lw(reg, addr)
#define user_sd(reg, addr) kernel_sw(reg, addr)
#define user_ld(reg, addr) kernel_lw(reg, addr)
#else
#define user_sd(reg, addr) "sd " reg", " addr "\n"
#define user_ld(reg, addr) "ld " reg", " addr "\n"
#define user_sd(reg, addr) kernel_sd(reg, addr)
#define user_ld(reg, addr) kernel_ld(reg, addr)
#endif /* CONFIG_32BIT */

#endif /* CONFIG_EVA */

#else /* __ASSEMBLY__ */

#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 */

#ifdef CONFIG_EVA

#define __BUILD_EVA_INSN(insn, reg, addr) \
Expand Down Expand Up @@ -101,31 +154,27 @@
#define user_sd(reg, addr) user_sw(reg, addr)
#else

#define user_cache(op, base) cache op, base
#define user_ll(reg, addr) ll reg, addr
#define user_sc(reg, addr) sc reg, addr
#define user_lw(reg, addr) lw reg, addr
#define user_lwl(reg, addr) lwl reg, addr
#define user_lwr(reg, addr) lwr reg, addr
#define user_lh(reg, addr) lh reg, addr
#define user_lb(reg, addr) lb reg, addr
#define user_lbu(reg, addr) lbu reg, addr
#define user_sw(reg, addr) sw reg, addr
#define user_swl(reg, addr) swl reg, addr
#define user_swr(reg, addr) swr reg, addr
#define user_sh(reg, addr) sh reg, addr
#define user_sb(reg, addr) sb reg, addr
#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)

#ifdef CONFIG_32BIT
/*
* No 'sd' or 'ld' instructions in 32-bit but the code will
* do the correct thing
*/
#define user_sd(reg, addr) user_sw(reg, addr)
#define user_ld(reg, addr) user_lw(reg, addr)
#define user_sd(reg, addr) kernel_sw(reg, addr)
#define user_ld(reg, addr) kernel_lw(reg, addr)
#else
#define user_sd(reg, addr) sd reg, addr
#define user_ld(reg, addr) ld reg, addr
#define user_sd(reg, addr) kernel_sd(reg, addr)
#define user_ld(reg, addr) kernel_sd(reg, addr)
#endif /* CONFIG_32BIT */

#endif /* CONFIG_EVA */
Expand Down

0 comments on commit 60cd7e0

Please sign in to comment.