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-rw-r--r--include/asm-parisc/assembly.h71
1 files changed, 63 insertions, 8 deletions
diff --git a/include/asm-parisc/assembly.h b/include/asm-parisc/assembly.h
index 30b023411fef..3ce3440d1b0c 100644
--- a/include/asm-parisc/assembly.h
+++ b/include/asm-parisc/assembly.h
@@ -21,7 +21,9 @@
#ifndef _PARISC_ASSEMBLY_H
#define _PARISC_ASSEMBLY_H
-#ifdef __LP64__
+#define CALLEE_FLOAT_FRAME_SIZE 80
+
+#ifdef CONFIG_64BIT
#define LDREG ldd
#define STREG std
#define LDREGX ldd,s
@@ -30,8 +32,8 @@
#define SHRREG shrd
#define RP_OFFSET 16
#define FRAME_SIZE 128
-#define CALLEE_SAVE_FRAME_SIZE 144
-#else
+#define CALLEE_REG_FRAME_SIZE 144
+#else /* CONFIG_64BIT */
#define LDREG ldw
#define STREG stw
#define LDREGX ldwx,s
@@ -40,9 +42,11 @@
#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
# ifdef CONFIG_64BIT
@@ -300,9 +304,35 @@
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 +370,13 @@
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 +414,7 @@
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__ */
@@ -450,5 +480,30 @@
REST_CR (%cr22, PT_PSW (\regs))
.endm
+
+ /* First step to create a "relied upon translation"
+ * See PA 2.0 Arch. page F-4 and F-5.
+ *
+ * The ssm was originally necessary due to a "PCxT bug".
+ * But someone decided it needed to be added to the architecture
+ * and this "feature" went into rev3 of PA-RISC 1.1 Arch Manual.
+ * It's been carried forward into PA 2.0 Arch as well. :^(
+ *
+ * "ssm 0,%r0" is a NOP with side effects (prefetch barrier).
+ * rsm/ssm prevents the ifetch unit from speculatively fetching
+ * instructions past this line in the code stream.
+ * PA 2.0 processor will single step all insn in the same QUAD (4 insn).
+ */
+ .macro pcxt_ssm_bug
+ rsm PSW_SM_I,%r0
+ nop /* 1 */
+ nop /* 2 */
+ nop /* 3 */
+ nop /* 4 */
+ nop /* 5 */
+ nop /* 6 */
+ nop /* 7 */
+ .endm
+
#endif /* __ASSEMBLY__ */
#endif