summaryrefslogtreecommitdiff
path: root/arch/mips/kernel/process.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/kernel/process.c')
-rw-r--r--arch/mips/kernel/process.c60
1 files changed, 4 insertions, 56 deletions
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 0a1ec0f3beff..636b0745d7c7 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -21,7 +21,6 @@
#include <linux/mman.h>
#include <linux/personality.h>
#include <linux/sys.h>
-#include <linux/user.h>
#include <linux/init.h>
#include <linux/completion.h>
#include <linux/kallsyms.h>
@@ -36,6 +35,7 @@
#include <asm/pgtable.h>
#include <asm/mipsregs.h>
#include <asm/processor.h>
+#include <asm/reg.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/elf.h>
@@ -66,6 +66,7 @@ void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp)
clear_used_math();
clear_fpu_owner();
init_dsp();
+ clear_thread_flag(TIF_USEDMSA);
clear_thread_flag(TIF_MSA_CTX_LIVE);
disable_msa();
regs->cp0_epc = pc;
@@ -141,6 +142,8 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
childregs->cp0_status &= ~(ST0_CU2|ST0_CU1);
clear_tsk_thread_flag(p, TIF_USEDFPU);
+ clear_tsk_thread_flag(p, TIF_USEDMSA);
+ clear_tsk_thread_flag(p, TIF_MSA_CTX_LIVE);
#ifdef CONFIG_MIPS_MT_FPAFF
clear_tsk_thread_flag(p, TIF_FPUBOUND);
@@ -152,61 +155,6 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
return 0;
}
-/* Fill in the fpu structure for a core dump.. */
-int dump_fpu(struct pt_regs *regs, elf_fpregset_t *r)
-{
- int i;
-
- for (i = 0; i < NUM_FPU_REGS; i++)
- memcpy(&r[i], &current->thread.fpu.fpr[i], sizeof(*r));
-
- memcpy(&r[NUM_FPU_REGS], &current->thread.fpu.fcr31,
- sizeof(current->thread.fpu.fcr31));
-
- return 1;
-}
-
-void elf_dump_regs(elf_greg_t *gp, struct pt_regs *regs)
-{
- int i;
-
- for (i = 0; i < EF_R0; i++)
- gp[i] = 0;
- gp[EF_R0] = 0;
- for (i = 1; i <= 31; i++)
- gp[EF_R0 + i] = regs->regs[i];
- gp[EF_R26] = 0;
- gp[EF_R27] = 0;
- gp[EF_LO] = regs->lo;
- gp[EF_HI] = regs->hi;
- gp[EF_CP0_EPC] = regs->cp0_epc;
- gp[EF_CP0_BADVADDR] = regs->cp0_badvaddr;
- gp[EF_CP0_STATUS] = regs->cp0_status;
- gp[EF_CP0_CAUSE] = regs->cp0_cause;
-#ifdef EF_UNUSED0
- gp[EF_UNUSED0] = 0;
-#endif
-}
-
-int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
-{
- elf_dump_regs(*regs, task_pt_regs(tsk));
- return 1;
-}
-
-int dump_task_fpu(struct task_struct *t, elf_fpregset_t *fpr)
-{
- int i;
-
- for (i = 0; i < NUM_FPU_REGS; i++)
- memcpy(&fpr[i], &t->thread.fpu.fpr[i], sizeof(*fpr));
-
- memcpy(&fpr[NUM_FPU_REGS], &t->thread.fpu.fcr31,
- sizeof(t->thread.fpu.fcr31));
-
- return 1;
-}
-
#ifdef CONFIG_CC_STACKPROTECTOR
#include <linux/stackprotector.h>
unsigned long __stack_chk_guard __read_mostly;