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| author | Hari Bathini <hbathini@linux.vnet.ibm.com> | 2016-04-08 01:00:34 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-04-21 16:32:58 +0300 |
| commit | 057b6d7e62ea4e6b1809e2946929d0d586cad142 (patch) | |
| tree | a2d4fe35eb9971d5c7cdfe4f02098072998173d3 /arch/powerpc/kernel | |
| parent | 8ed8ab40047a570fdd8043a40c104a57248dd3fd (diff) | |
| download | linux-057b6d7e62ea4e6b1809e2946929d0d586cad142.tar.xz | |
powerpc/book3s64: Remove __end_handlers marker
The __end_handlers marker was intended to mark down upto code that gets
called from exception prologs. But that hasn't kept pace with code
changes. Case in point, slb_miss_realmode being called from exception
prolog code but isn't below __end_handlers marker. So, __end_handlers
marker is as good as a comment but could be misleading at times if it
isn't in sync with the code, as is the case now. So, let us avoid this
confusion by having a better comment and removing __end_handlers marker
altogether.
Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index b952173da029..52d2d742f6e7 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -726,11 +726,10 @@ kvmppc_skip_Hinterrupt: #endif /* - * Code from here down to __end_handlers is invoked from the - * exception prologs above. Because the prologs assemble the - * addresses of these handlers using the LOAD_HANDLER macro, - * which uses an ori instruction, these handlers must be in - * the first 64k of the kernel image. + * Ensure that any handlers that get invoked from the exception prologs + * above are below the first 64KB (0x10000) of the kernel image because + * the prologs assemble the addresses of these handlers using the + * LOAD_HANDLER macro, which uses an ori instruction. */ /*** Common interrupt handlers ***/ @@ -1123,10 +1122,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX) STD_EXCEPTION_COMMON(0xf60, facility_unavailable, facility_unavailable_exception) STD_EXCEPTION_COMMON(0xf80, hv_facility_unavailable, facility_unavailable_exception) - .align 7 - .globl __end_handlers -__end_handlers: - /* Equivalents to the above handlers for relocation-on interrupt vectors */ STD_RELON_EXCEPTION_HV_OOL(0xe40, emulation_assist) MASKABLE_RELON_EXCEPTION_HV_OOL(0xe80, h_doorbell) |