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authorRalf Baechle <ralf@linux-mips.org>2005-12-05 13:47:25 +0000
committer <ralf@denk.linux-mips.net>2006-01-10 13:39:04 +0000
commit6c35585273b26a580b2e2ad3d6a7db282308eec5 (patch)
treeae81213a06a1f2728050319b47f51308d9d197ca
parentda2c9ed55b0c7e8107f23530bde293239a0b5091 (diff)
downloadblackbird-op-linux-6c35585273b26a580b2e2ad3d6a7db282308eec5.tar.gz
blackbird-op-linux-6c35585273b26a580b2e2ad3d6a7db282308eec5.zip
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>
-rw-r--r--arch/mips/kernel/ptrace.c8
-rw-r--r--arch/mips/kernel/ptrace32.c8
-rw-r--r--include/asm-mips/processor.h1
3 files changed, 4 insertions, 13 deletions
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 510da5fda567..8d2549335304 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -280,12 +280,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
ret = -EIO;
goto out;
}
- if (child->thread.dsp.used_dsp) {
- dregs = __get_dsp_regs(child);
- tmp = (unsigned long) (dregs[addr - DSP_BASE]);
- } else {
- tmp = -1; /* DSP registers yet used */
- }
+ dregs = __get_dsp_regs(child);
+ tmp = (unsigned long) (dregs[addr - DSP_BASE]);
break;
}
case DSP_CONTROL:
diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c
index 7e55457a491f..1f998bfde165 100644
--- a/arch/mips/kernel/ptrace32.c
+++ b/arch/mips/kernel/ptrace32.c
@@ -201,12 +201,8 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data)
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 */
- }
+ dspreg_t *dregs = __get_dsp_regs(child);
+ tmp = (unsigned long) (dregs[addr - DSP_BASE]);
break;
case DSP_CONTROL:
if (!cpu_has_dsp) {
diff --git a/include/asm-mips/processor.h b/include/asm-mips/processor.h
index f1980c6c3bcc..de53055a62ae 100644
--- a/include/asm-mips/processor.h
+++ b/include/asm-mips/processor.h
@@ -103,7 +103,6 @@ typedef __u32 dspreg_t;
struct mips_dsp_state {
dspreg_t dspr[NUM_DSP_REGS];
unsigned int dspcontrol;
- unsigned short used_dsp;
};
#define INIT_DSP {{0,},}
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