diff options
| author | Steven J. Hill <Steven.Hill@imgtec.com> | 2014-04-15 23:06:49 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-06-04 22:50:41 +0200 |
| commit | d96cc3d1ec5dcbb49a5a990d699239d590624799 (patch) | |
| tree | 5e37b4ff0bb650e046b78a57e63f999a5b5c6ffd /arch/mips | |
| parent | MIPS: Replace calls to obsolete strict_strto call with kstrto* equivalents. (diff) | |
| download | linux-d96cc3d1ec5dcbb49a5a990d699239d590624799.tar.xz linux-d96cc3d1ec5dcbb49a5a990d699239d590624799.zip | |
MIPS: Add microMIPS MSA support.
This patch adds support for the microMIPS implementation of the MSA
instructions.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Reviewed-by: Paul Burton <Paul.Burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6763/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/asmmacro.h | 40 | ||||
| -rw-r--r-- | arch/mips/include/asm/msa.h | 13 |
2 files changed, 43 insertions, 10 deletions
diff --git a/arch/mips/include/asm/asmmacro.h b/arch/mips/include/asm/asmmacro.h index f7db79a846bb..935543f14538 100644 --- a/arch/mips/include/asm/asmmacro.h +++ b/arch/mips/include/asm/asmmacro.h @@ -249,13 +249,35 @@ .set pop .endm #else + +#ifdef CONFIG_CPU_MICROMIPS +#define CFC_MSA_INSN 0x587e0056 +#define CTC_MSA_INSN 0x583e0816 +#define LDD_MSA_INSN 0x58000837 +#define STD_MSA_INSN 0x5800083f +#define COPY_UW_MSA_INSN 0x58f00056 +#define COPY_UD_MSA_INSN 0x58f80056 +#define INSERT_W_MSA_INSN 0x59300816 +#define INSERT_D_MSA_INSN 0x59380816 +#else +#define CFC_MSA_INSN 0x787e0059 +#define CTC_MSA_INSN 0x783e0819 +#define LDD_MSA_INSN 0x78000823 +#define STD_MSA_INSN 0x78000827 +#define COPY_UW_MSA_INSN 0x78f00059 +#define COPY_UD_MSA_INSN 0x78f80059 +#define INSERT_W_MSA_INSN 0x79300819 +#define INSERT_D_MSA_INSN 0x79380819 +#endif + /* * Temporary until all toolchains in use include MSA support. */ .macro cfcmsa rd, cs .set push .set noat - .word 0x787e0059 | (\cs << 11) + .insn + .word CFC_MSA_INSN | (\cs << 11) move \rd, $1 .set pop .endm @@ -264,7 +286,7 @@ .set push .set noat move $1, \rs - .word 0x783e0819 | (\cd << 6) + .word CTC_MSA_INSN | (\cd << 6) .set pop .endm @@ -272,7 +294,7 @@ .set push .set noat add $1, \base, \off - .word 0x78000823 | (\wd << 6) + .word LDD_MSA_INSN | (\wd << 6) .set pop .endm @@ -280,14 +302,15 @@ .set push .set noat add $1, \base, \off - .word 0x78000827 | (\wd << 6) + .word STD_MSA_INSN | (\wd << 6) .set pop .endm .macro copy_u_w rd, ws, n .set push .set noat - .word 0x78f00059 | (\n << 16) | (\ws << 11) + .insn + .word COPY_UW_MSA_INSN | (\n << 16) | (\ws << 11) /* move triggers an assembler bug... */ or \rd, $1, zero .set pop @@ -296,7 +319,8 @@ .macro copy_u_d rd, ws, n .set push .set noat - .word 0x78f80059 | (\n << 16) | (\ws << 11) + .insn + .word COPY_UD_MSA_INSN | (\n << 16) | (\ws << 11) /* move triggers an assembler bug... */ or \rd, $1, zero .set pop @@ -307,7 +331,7 @@ .set noat /* move triggers an assembler bug... */ or $1, \rs, zero - .word 0x79300819 | (\n << 16) | (\wd << 6) + .word INSERT_W_MSA_INSN | (\n << 16) | (\wd << 6) .set pop .endm @@ -316,7 +340,7 @@ .set noat /* move triggers an assembler bug... */ or $1, \rs, zero - .word 0x79380819 | (\n << 16) | (\wd << 6) + .word INSERT_D_MSA_INSN | (\n << 16) | (\wd << 6) .set pop .endm #endif diff --git a/arch/mips/include/asm/msa.h b/arch/mips/include/asm/msa.h index a2aba6c3ec05..52450a040f44 100644 --- a/arch/mips/include/asm/msa.h +++ b/arch/mips/include/asm/msa.h @@ -96,6 +96,13 @@ static inline void write_msa_##name(unsigned int val) \ * allow compilation with toolchains that do not support MSA. Once all * toolchains in use support MSA these can be removed. */ +#ifdef CONFIG_CPU_MICROMIPS +#define CFC_MSA_INSN 0x587e0056 +#define CTC_MSA_INSN 0x583e0816 +#else +#define CFC_MSA_INSN 0x787e0059 +#define CTC_MSA_INSN 0x783e0819 +#endif #define __BUILD_MSA_CTL_REG(name, cs) \ static inline unsigned int read_msa_##name(void) \ @@ -104,7 +111,8 @@ static inline unsigned int read_msa_##name(void) \ __asm__ __volatile__( \ " .set push\n" \ " .set noat\n" \ - " .word 0x787e0059 | (" #cs " << 11)\n" \ + " .insn\n" \ + " .word #CFC_MSA_INSN | (" #cs " << 11)\n" \ " move %0, $1\n" \ " .set pop\n" \ : "=r"(reg)); \ @@ -117,7 +125,8 @@ static inline void write_msa_##name(unsigned int val) \ " .set push\n" \ " .set noat\n" \ " move $1, %0\n" \ - " .word 0x783e0819 | (" #cs " << 6)\n" \ + " .insn\n" \ + " .word #CTC_MSA_INSN | (" #cs " << 6)\n" \ " .set pop\n" \ : : "r"(val)); \ } |