Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Sync FPU state in VIS emulation handler. sparc64: Fix VIS emulation bugs sparc: asm/bitops.h should define __fls sparc64: Fix bug in PTRACE_SETFPREGS64 handling.
git-mirror · Dec 5, 2008 · 0efcafb · 0efcafb
2 parents e948990 + 410d2c8
commit 0efcafb
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Showing 3 changed files with 6 additions and 3 deletions.
diff --git a/arch/sparc/include/asm/bitops_32.h b/arch/sparc/include/asm/bitops_32.h
@@ -98,6 +98,7 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/fls.h>
+#include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
 #include <asm-generic/bitops/lock.h>

diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
@@ -1014,7 +1014,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		break;
 
 	case PTRACE_SETFPREGS64:
-		ret = copy_regset_to_user(child, view, REGSET_FP,
+		ret = copy_regset_from_user(child, view, REGSET_FP,
 					  0 * sizeof(u64),
 					  33 * sizeof(u64),
 					  fps);

diff --git a/arch/sparc64/kernel/visemul.c b/arch/sparc64/kernel/visemul.c
@@ -131,7 +131,7 @@
 #define VIS_OPF_SHIFT	5
 #define VIS_OPF_MASK	(0x1ff << VIS_OPF_SHIFT)
 
-#define RS1(INSN)	(((INSN) >> 24) & 0x1f)
+#define RS1(INSN)	(((INSN) >> 14) & 0x1f)
 #define RS2(INSN)	(((INSN) >>  0) & 0x1f)
 #define RD(INSN)	(((INSN) >> 25) & 0x1f)
 
@@ -445,7 +445,7 @@ static void pdist(struct pt_regs *regs, unsigned int insn)
 	unsigned long i;
 
 	rs1 = fpd_regval(f, RS1(insn));
-	rs2 = fpd_regval(f, RS1(insn));
+	rs2 = fpd_regval(f, RS2(insn));
 	rd = fpd_regaddr(f, RD(insn));
 
 	rd_val = *rd;
@@ -807,6 +807,8 @@ int vis_emul(struct pt_regs *regs, unsigned int insn)
 	if (get_user(insn, (u32 __user *) pc))
 		return -EFAULT;
 
+	save_and_clear_fpu();
+
 	opf = (insn & VIS_OPF_MASK) >> VIS_OPF_SHIFT;
 	switch (opf) {
 	default: