diff options
Diffstat (limited to 'arch/mips/kernel/ptrace.c')
| -rw-r--r-- | arch/mips/kernel/ptrace.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c index 49821ee1898..2441e32ce82 100644 --- a/arch/mips/kernel/ptrace.c +++ b/arch/mips/kernel/ptrace.c @@ -30,6 +30,7 @@ #include <asm/byteorder.h> #include <asm/cpu.h> +#include <asm/dsp.h> #include <asm/fpu.h> #include <asm/mipsregs.h> #include <asm/pgtable.h> @@ -176,6 +177,27 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) write_c0_status(flags); break; } + case DSP_BASE ... DSP_BASE + 5: + if (!cpu_has_dsp) { + tmp = 0; + ret = -EIO; + goto out_tsk; + } + if (child->thread.dsp.used_dsp) { + dspreg_t *dregs = __get_dsp_regs(child); + tmp = (unsigned long) (dregs[addr - DSP_BASE]); + } else { + tmp = -1; /* DSP registers yet used */ + } + break; + case DSP_CONTROL: + if (!cpu_has_dsp) { + tmp = 0; + ret = -EIO; + goto out_tsk; + } + tmp = child->thread.dsp.dspcontrol; + break; default: tmp = 0; ret = -EIO; @@ -248,6 +270,22 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) else child->thread.fpu.soft.fcr31 = data; break; + case DSP_BASE ... DSP_BASE + 5: + if (!cpu_has_dsp) { + ret = -EIO; + break; + } + + dspreg_t *dregs = __get_dsp_regs(child); + dregs[addr - DSP_BASE] = data; + break; + case DSP_CONTROL: + if (!cpu_has_dsp) { + ret = -EIO; + break; + } + child->thread.dsp.dspcontrol = data; + break; default: /* The rest are not allowed. */ ret = -EIO; |