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authorSteven J. Hill <Steven.Hill@imgtec.com>2014-04-15 16:06:49 -0500
committerRalf Baechle <ralf@linux-mips.org>2014-06-04 22:50:41 +0200
commitd96cc3d1ec5dcbb49a5a990d699239d590624799 (patch)
tree5e37b4ff0bb650e046b78a57e63f999a5b5c6ffd /arch/mips
parent8e9ecbc5e21bf82693e52ec75b1f45c1245a9bea (diff)
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.h40
-rw-r--r--arch/mips/include/asm/msa.h13
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)); \
}