MIPS: DSP: eleminate used_dsp.
used_dsp was meant to be used like used_math - but since the FPU context is small and lazy context switching is a stupid idea on multiprocessors this idea only got halfway implemented and those bits are were now breaking ptrace. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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@ -280,12 +280,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
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ret = -EIO;
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goto out;
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}
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if (child->thread.dsp.used_dsp) {
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dregs = __get_dsp_regs(child);
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tmp = (unsigned long) (dregs[addr - DSP_BASE]);
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} else {
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tmp = -1; /* DSP registers yet used */
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}
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dregs = __get_dsp_regs(child);
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tmp = (unsigned long) (dregs[addr - DSP_BASE]);
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break;
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}
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case DSP_CONTROL:
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@ -201,12 +201,8 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data)
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ret = -EIO;
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goto out_tsk;
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}
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if (child->thread.dsp.used_dsp) {
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dspreg_t *dregs = __get_dsp_regs(child);
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tmp = (unsigned long) (dregs[addr - DSP_BASE]);
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} else {
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tmp = -1; /* DSP registers yet used */
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}
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dspreg_t *dregs = __get_dsp_regs(child);
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tmp = (unsigned long) (dregs[addr - DSP_BASE]);
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break;
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case DSP_CONTROL:
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if (!cpu_has_dsp) {
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@ -103,7 +103,6 @@ typedef __u32 dspreg_t;
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struct mips_dsp_state {
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dspreg_t dspr[NUM_DSP_REGS];
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unsigned int dspcontrol;
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unsigned short used_dsp;
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};
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#define INIT_DSP {{0,},}
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