diff options
Diffstat (limited to 'include/asm-parisc/assembly.h')
| -rw-r--r-- | include/asm-parisc/assembly.h | 71 |
1 files changed, 63 insertions, 8 deletions
diff --git a/include/asm-parisc/assembly.h b/include/asm-parisc/assembly.h index 30b023411fe..3ce3440d1b0 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 |