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Support the MIPS32 / MIPS64 DSP ASE.

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle
2005-05-31 11:49:19 +00:00
parent 10f650db1b
commit e50c0a8fa6
34 changed files with 876 additions and 139 deletions
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38
arch/mips/kernel/ptrace32.c
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@@ -26,6 +26,7 @@
#include <linux/security.h>
#include <asm/cpu.h>
#include <asm/dsp.h>
#include <asm/fpu.h>
#include <asm/mipsregs.h>
#include <asm/pgtable.h>
@@ -161,6 +162,27 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int 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;
@@ -230,6 +252,22 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int 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;