diff options
| author | Steven J. Hill <sjhill@mips.com> | 2013-01-03 19:01:52 +0000 |
|---|---|---|
| committer | John Crispin <blogic@openwrt.org> | 2013-02-17 00:15:23 +0100 |
| commit | 32a7ede673cd0be580f24d855099a8a5f195e80c (patch) | |
| tree | 58529df42257c146094b0e3843be2a98ed18922b /arch/mips/include | |
| parent | f8fa4811dbb264aef13f982e963389fd828b1ac0 (diff) | |
MIPS: dsp: Add assembler support for DSP ASEs.
Newer toolchains support the DSP and DSP Rev2 instructions. This patch
performs a check for that support and adds compiler and assembler
flags for only the files that need use those instructions.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Acked-by: Florian Fainelli <florian@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4752/
Signed-off-by: John Crispin <blogic@openwrt.org>
Diffstat (limited to 'arch/mips/include')
| -rw-r--r-- | arch/mips/include/asm/mipsregs.h | 53 |
1 files changed, 36 insertions, 17 deletions
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h index 3e36745670b..578132219ff 100644 --- a/arch/mips/include/asm/mipsregs.h +++ b/arch/mips/include/asm/mipsregs.h @@ -1155,36 +1155,26 @@ do { \ : "=r" (__res)); \ __res;}) +#ifdef HAVE_AS_DSP #define rddsp(mask) \ ({ \ - unsigned int __res; \ + unsigned int __dspctl; \ \ __asm__ __volatile__( \ - " .set push \n" \ - " .set noat \n" \ - " # rddsp $1, %x1 \n" \ - " .word 0x7c000cb8 | (%x1 << 16) \n" \ - " move %0, $1 \n" \ - " .set pop \n" \ - : "=r" (__res) \ + " rddsp %0, %x1 \n" \ + : "=r" (__dspctl) \ : "i" (mask)); \ - __res; \ + __dspctl; \ }) #define wrdsp(val, mask) \ do { \ __asm__ __volatile__( \ - " .set push \n" \ - " .set noat \n" \ - " move $1, %0 \n" \ - " # wrdsp $1, %x1 \n" \ - " .word 0x7c2004f8 | (%x1 << 11) \n" \ - " .set pop \n" \ - : \ + " wrdsp %0, %x1 \n" \ + : \ : "r" (val), "i" (mask)); \ } while (0) -#if 0 /* Need DSP ASE capable assembler ... */ #define mflo0() ({ long mflo0; __asm__("mflo %0, $ac0" : "=r" (mflo0)); mflo0;}) #define mflo1() ({ long mflo1; __asm__("mflo %0, $ac1" : "=r" (mflo1)); mflo1;}) #define mflo2() ({ long mflo2; __asm__("mflo %0, $ac2" : "=r" (mflo2)); mflo2;}) @@ -1207,6 +1197,35 @@ do { \ #else +#define rddsp(mask) \ +({ \ + unsigned int __res; \ + \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " # rddsp $1, %x1 \n" \ + " .word 0x7c000cb8 | (%x1 << 16) \n" \ + " move %0, $1 \n" \ + " .set pop \n" \ + : "=r" (__res) \ + : "i" (mask)); \ + __res; \ +}) + +#define wrdsp(val, mask) \ +do { \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " move $1, %0 \n" \ + " # wrdsp $1, %x1 \n" \ + " .word 0x7c2004f8 | (%x1 << 11) \n" \ + " .set pop \n" \ + : \ + : "r" (val), "i" (mask)); \ +} while (0) + #define mfhi0() \ ({ \ unsigned long __treg; \ |