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-rw-r--r--arch/parisc/kernel/entry.S2
-rw-r--r--include/asm-parisc/assembly.h40
2 files changed, 36 insertions, 6 deletions
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 0ca49710d95e..166df5bab769 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -863,6 +863,7 @@ __execve:
_switch_to:
STREG %r2, -RP_OFFSET(%r30)
+ callee_save_float
callee_save
load32 _switch_to_ret, %r2
@@ -879,6 +880,7 @@ _switch_to:
_switch_to_ret:
mtctl %r0, %cr0 /* Needed for single stepping */
callee_rest
+ callee_rest_float
LDREG -RP_OFFSET(%r30), %r2
bv %r0(%r2)
diff --git a/include/asm-parisc/assembly.h b/include/asm-parisc/assembly.h
index b24a99e3ef9c..fb8bc7c16e0e 100644
--- a/include/asm-parisc/assembly.h
+++ b/include/asm-parisc/assembly.h
@@ -21,6 +21,7 @@
#ifndef _PARISC_ASSEMBLY_H
#define _PARISC_ASSEMBLY_H
+#define CALLEE_FLOAT_FRAME_SIZE 80
#ifdef __LP64__
#define LDREG ldd
#define STREG std
@@ -30,7 +31,7 @@
#define SHRREG shrd
#define RP_OFFSET 16
#define FRAME_SIZE 128
-#define CALLEE_SAVE_FRAME_SIZE 144
+#define CALLEE_REG_FRAME_SIZE 144
#else
#define LDREG ldw
#define STREG stw
@@ -40,8 +41,9 @@
#define SHRREG shr
#define RP_OFFSET 20
#define FRAME_SIZE 64
-#define CALLEE_SAVE_FRAME_SIZE 128
+#define CALLEE_REG_FRAME_SIZE 128
#endif
+#define CALLEE_SAVE_FRAME_SIZE (CALLEE_REG_FRAME_SIZE + CALLEE_FLOAT_FRAME_SIZE)
#ifdef CONFIG_PA20
#define BL b,l
@@ -300,9 +302,35 @@
fldd,mb -8(\regs), %fr0
.endm
+ .macro callee_save_float
+ fstd,ma %fr12, 8(%r30)
+ fstd,ma %fr13, 8(%r30)
+ fstd,ma %fr14, 8(%r30)
+ fstd,ma %fr15, 8(%r30)
+ fstd,ma %fr16, 8(%r30)
+ fstd,ma %fr17, 8(%r30)
+ fstd,ma %fr18, 8(%r30)
+ fstd,ma %fr19, 8(%r30)
+ fstd,ma %fr20, 8(%r30)
+ fstd,ma %fr21, 8(%r30)
+ .endm
+
+ .macro callee_rest_float
+ fldd,mb -8(%r30), %fr21
+ fldd,mb -8(%r30), %fr20
+ fldd,mb -8(%r30), %fr19
+ fldd,mb -8(%r30), %fr18
+ fldd,mb -8(%r30), %fr17
+ fldd,mb -8(%r30), %fr16
+ fldd,mb -8(%r30), %fr15
+ fldd,mb -8(%r30), %fr14
+ fldd,mb -8(%r30), %fr13
+ fldd,mb -8(%r30), %fr12
+ .endm
+
#ifdef __LP64__
.macro callee_save
- std,ma %r3, CALLEE_SAVE_FRAME_SIZE(%r30)
+ std,ma %r3, CALLEE_REG_FRAME_SIZE(%r30)
mfctl %cr27, %r3
std %r4, -136(%r30)
std %r5, -128(%r30)
@@ -340,13 +368,13 @@
ldd -128(%r30), %r5
ldd -136(%r30), %r4
mtctl %r3, %cr27
- ldd,mb -CALLEE_SAVE_FRAME_SIZE(%r30), %r3
+ ldd,mb -CALLEE_REG_FRAME_SIZE(%r30), %r3
.endm
#else /* ! __LP64__ */
.macro callee_save
- stw,ma %r3, CALLEE_SAVE_FRAME_SIZE(%r30)
+ stw,ma %r3, CALLEE_REG_FRAME_SIZE(%r30)
mfctl %cr27, %r3
stw %r4, -124(%r30)
stw %r5, -120(%r30)
@@ -384,7 +412,7 @@
ldw -120(%r30), %r5
ldw -124(%r30), %r4
mtctl %r3, %cr27
- ldw,mb -CALLEE_SAVE_FRAME_SIZE(%r30), %r3
+ ldw,mb -CALLEE_REG_FRAME_SIZE(%r30), %r3
.endm
#endif /* ! __LP64__ */