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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-30 09:02:02 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-30 09:02:02 -0700 |
| commit | 06b2e9886e039c2f1b3048c47e539b80ab4155b0 (patch) | |
| tree | cdc295333e93cf407fd205b21f31a12d75b0a635 /arch/parisc/kernel/entry.S | |
| parent | 35926ff5fba8245bd1c6ac04155048f6f89232b1 (diff) | |
| parent | 210501aa570fdaa8b06e56fd1c04f31f2d3f368b (diff) | |
| download | op-kernel-dev-06b2e9886e039c2f1b3048c47e539b80ab4155b0.zip op-kernel-dev-06b2e9886e039c2f1b3048c47e539b80ab4155b0.tar.gz | |
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
parisc: Call pagefault_disable/pagefault_enable in kmap_atomic/kunmap_atomic
parisc: Remove unnecessary macros from entry.S
parisc: LWS fixes for syscall.S
parisc: Delete unnecessary nop's in entry.S
parisc: Avoid interruption in critical region in entry.S
parisc: invoke oom-killer from page fault
parisc: clear floating point exception flag on SIGFPE signal
parisc: Use of align_frame provides stack frame.
Diffstat (limited to 'arch/parisc/kernel/entry.S')
| -rw-r--r-- | arch/parisc/kernel/entry.S | 52 |
1 files changed, 10 insertions, 42 deletions
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S index 3a44f7f..6337ade 100644 --- a/arch/parisc/kernel/entry.S +++ b/arch/parisc/kernel/entry.S @@ -364,32 +364,6 @@ .align 32 .endm - /* The following are simple 32 vs 64 bit instruction - * abstractions for the macros */ - .macro EXTR reg1,start,length,reg2 -#ifdef CONFIG_64BIT - extrd,u \reg1,32+(\start),\length,\reg2 -#else - extrw,u \reg1,\start,\length,\reg2 -#endif - .endm - - .macro DEP reg1,start,length,reg2 -#ifdef CONFIG_64BIT - depd \reg1,32+(\start),\length,\reg2 -#else - depw \reg1,\start,\length,\reg2 -#endif - .endm - - .macro DEPI val,start,length,reg -#ifdef CONFIG_64BIT - depdi \val,32+(\start),\length,\reg -#else - depwi \val,\start,\length,\reg -#endif - .endm - /* In LP64, the space contains part of the upper 32 bits of the * fault. We have to extract this and place it in the va, * zeroing the corresponding bits in the space register */ @@ -442,19 +416,19 @@ */ .macro L2_ptep pmd,pte,index,va,fault #if PT_NLEVELS == 3 - EXTR \va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index + extru \va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index #else - EXTR \va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index + extru \va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index #endif - DEP %r0,31,PAGE_SHIFT,\pmd /* clear offset */ + dep %r0,31,PAGE_SHIFT,\pmd /* clear offset */ copy %r0,\pte ldw,s \index(\pmd),\pmd bb,>=,n \pmd,_PxD_PRESENT_BIT,\fault - DEP %r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */ + dep %r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */ copy \pmd,%r9 SHLREG %r9,PxD_VALUE_SHIFT,\pmd - EXTR \va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index - DEP %r0,31,PAGE_SHIFT,\pmd /* clear offset */ + extru \va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index + dep %r0,31,PAGE_SHIFT,\pmd /* clear offset */ shladd \index,BITS_PER_PTE_ENTRY,\pmd,\pmd LDREG %r0(\pmd),\pte /* pmd is now pte */ bb,>=,n \pte,_PAGE_PRESENT_BIT,\fault @@ -605,7 +579,7 @@ depdi 0,31,32,\tmp #endif copy \va,\tmp1 - DEPI 0,31,23,\tmp1 + depi 0,31,23,\tmp1 cmpb,COND(<>),n \tmp,\tmp1,\fault ldi (_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot depd,z \prot,8,7,\prot @@ -997,13 +971,6 @@ intr_restore: rfi nop - nop - nop - nop - nop - nop - nop - nop #ifndef CONFIG_PREEMPT # define intr_do_preempt intr_restore @@ -2076,9 +2043,10 @@ syscall_restore: LDREG TASK_PT_GR31(%r1),%r31 /* restore syscall rp */ /* NOTE: We use rsm/ssm pair to make this operation atomic */ + LDREG TASK_PT_GR30(%r1),%r1 /* Get user sp */ rsm PSW_SM_I, %r0 - LDREG TASK_PT_GR30(%r1),%r30 /* restore user sp */ - mfsp %sr3,%r1 /* Get users space id */ + copy %r1,%r30 /* Restore user sp */ + mfsp %sr3,%r1 /* Get user space id */ mtsp %r1,%sr7 /* Restore sr7 */ ssm PSW_SM_I, %r0 |
