diff options
| author | Steven J. Hill <sjhill@mips.com> | 2012-12-07 03:53:29 +0000 |
|---|---|---|
| committer | John Crispin <blogic@openwrt.org> | 2013-02-17 00:15:24 +0100 |
| commit | d0c1b478e0b2f0bcbb2a58db6bc5e13354068064 (patch) | |
| tree | 05150998c909ec659d01d6cada899f82c6e359b1 /arch/mips | |
| parent | 32a7ede673cd0be580f24d855099a8a5f195e80c (diff) | |
MIPS: dsp: Support toolchains without DSP ASE and microMIPS.
Add macros to support the DSP ASE with microMIPS kernels when the
toolchain does not have support.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Patchwork: http://patchwork.linux-mips.org/patch/4686/
Signed-off-by: John Crispin <blogic@openwrt.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/mipsregs.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h index 578132219ff..24417de673c 100644 --- a/arch/mips/include/asm/mipsregs.h +++ b/arch/mips/include/asm/mipsregs.h @@ -1197,6 +1197,94 @@ do { \ #else +#ifdef CONFIG_CPU_MICROMIPS +#define rddsp(mask) \ +({ \ + unsigned int __res; \ + \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " # rddsp $1, %x1 \n" \ + " .hword ((0x0020067c | (%x1 << 14)) >> 16) \n" \ + " .hword ((0x0020067c | (%x1 << 14)) & 0xffff) \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" \ + " .hword ((0x0020167c | (%x1 << 14)) >> 16) \n" \ + " .hword ((0x0020167c | (%x1 << 14)) & 0xffff) \n" \ + " .set pop \n" \ + : \ + : "r" (val), "i" (mask)); \ +} while (0) + +#define _umips_dsp_mfxxx(ins) \ +({ \ + unsigned long __treg; \ + \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " .hword 0x0001 \n" \ + " .hword %x1 \n" \ + " move %0, $1 \n" \ + " .set pop \n" \ + : "=r" (__treg) \ + : "i" (ins)); \ + __treg; \ +}) + +#define _umips_dsp_mtxxx(val, ins) \ +do { \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " move $1, %0 \n" \ + " .hword 0x0001 \n" \ + " .hword %x1 \n" \ + " .set pop \n" \ + : \ + : "r" (val), "i" (ins)); \ +} while (0) + +#define _umips_dsp_mflo(reg) _umips_dsp_mfxxx((reg << 14) | 0x107c) +#define _umips_dsp_mfhi(reg) _umips_dsp_mfxxx((reg << 14) | 0x007c) + +#define _umips_dsp_mtlo(val, reg) _umips_dsp_mtxxx(val, ((reg << 14) | 0x307c)) +#define _umips_dsp_mthi(val, reg) _umips_dsp_mtxxx(val, ((reg << 14) | 0x207c)) + +#define mflo0() _umips_dsp_mflo(0) +#define mflo1() _umips_dsp_mflo(1) +#define mflo2() _umips_dsp_mflo(2) +#define mflo3() _umips_dsp_mflo(3) + +#define mfhi0() _umips_dsp_mfhi(0) +#define mfhi1() _umips_dsp_mfhi(1) +#define mfhi2() _umips_dsp_mfhi(2) +#define mfhi3() _umips_dsp_mfhi(3) + +#define mtlo0(x) _umips_dsp_mtlo(x, 0) +#define mtlo1(x) _umips_dsp_mtlo(x, 1) +#define mtlo2(x) _umips_dsp_mtlo(x, 2) +#define mtlo3(x) _umips_dsp_mtlo(x, 3) + +#define mthi0(x) _umips_dsp_mthi(x, 0) +#define mthi1(x) _umips_dsp_mthi(x, 1) +#define mthi2(x) _umips_dsp_mthi(x, 2) +#define mthi3(x) _umips_dsp_mthi(x, 3) + +#else /* !CONFIG_CPU_MICROMIPS */ #define rddsp(mask) \ ({ \ unsigned int __res; \ @@ -1450,6 +1538,7 @@ do { \ : "r" (x)); \ } while (0) +#endif /* CONFIG_CPU_MICROMIPS */ #endif /* |