diff options
| author | Kirill A. Shutemov <kirill@shutemov.name> | 2009-09-25 16:39:47 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-10-03 01:34:32 +0400 |
| commit | 4fb2847437d871fe579f820ceb18031db3359901 (patch) | |
| tree | e2015dbc54178dd114eb0c41fa5a29d89dd15b41 /arch/arm/kernel/entry-common.S | |
| parent | 6806bfe18fca92e2001538b84cab5f63c5ea4bed (diff) | |
| download | linux-4fb2847437d871fe579f820ceb18031db3359901.tar.xz | |
ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()
Instruction fault status register, IFSR, was introduced on ARMv6 to
provide status information about the last insturction fault. It
needed for proper prefetch abort handling.
Now we have three prefetch abort model:
* legacy - for CPUs before ARMv6. They doesn't provide neither
IFSR nor IFAR. We simulate IFSR with section translation fault
status for them to generalize code;
* ARMv6 - provides IFSR, but not IFAR;
* ARMv7 - provides both IFSR and IFAR.
Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/entry-common.S')
| -rw-r--r-- | arch/arm/kernel/entry-common.S | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index 825db52e558a..f0fe95b7085d 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -425,13 +425,6 @@ sys_mmap2: #endif ENDPROC(sys_mmap2) -ENTRY(pabort_ifar) - mrc p15, 0, r0, cr6, cr0, 2 -ENTRY(pabort_noifar) - mov pc, lr -ENDPROC(pabort_ifar) -ENDPROC(pabort_noifar) - #ifdef CONFIG_OABI_COMPAT /* |