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| author |   Maciej W. Rozycki <macro@orcam.me.uk> | 2022-03-04 20:16:23 +0000 |
|---|---|---|
| committer |   Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2022-03-07 13:10:44 +0100 |
| commit | 244eae91a94c6dab82b3232967d10eeb9dfa21c6 (patch) | |
| tree | 208cfca36ec9a03589c40f678308151e352bd1bd /arch/mips/dec/prom/Makefile | |
| parent | mips: DEC: honor CONFIG_MIPS_FP_SUPPORT=n (diff) | |
| download | linux-dev-244eae91a94c6dab82b3232967d10eeb9dfa21c6.tar.xz linux-dev-244eae91a94c6dab82b3232967d10eeb9dfa21c6.zip | |
DEC: Limit PMAX memory probing to R3k systems
Recent tightening of the opcode table in binutils so as to consistently
disallow the assembly or disassembly of CP0 instructions not supported
by the processor architecture chosen has caused a regression like below:
arch/mips/dec/prom/locore.S: Assembler messages:
arch/mips/dec/prom/locore.S:29: Error: opcode not supported on this processor: r4600 (mips3) `rfe'
in a piece of code used to probe for memory with PMAX DECstation models,
which have non-REX firmware. Those computers always have an R2000 CPU
and consequently the exception handler used in memory probing uses the
RFE instruction, which those processors use.
While adding 64-bit support this code was correctly excluded for 64-bit
configurations, however it should have also been excluded for irrelevant
32-bit configurations. Do this now then, and only enable PMAX memory
probing for R3k systems.
Reported-by: Jan-Benedict Glaw <jbglaw@lug-owl.de>
Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org # v2.6.12+
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips/dec/prom/Makefile')
| -rw-r--r-- | arch/mips/dec/prom/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/dec/prom/Makefile b/arch/mips/dec/prom/Makefile index d95016016b42..2bad87551203 100644 --- a/arch/mips/dec/prom/Makefile +++ b/arch/mips/dec/prom/Makefile @@ -6,4 +6,4 @@ lib-y += init.o memory.o cmdline.o identify.o console.o -lib-$(CONFIG_32BIT) += locore.o +lib-$(CONFIG_CPU_R3000) += locore.o |