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| author |   Michael Ellerman <mpe@ellerman.id.au> | 2016-10-20 16:00:14 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-11-14 11:11:51 +1100 |
| commit | 3a849815a13695ad0e32f6f01c90544922a72229 (patch) | |
| tree | e72743b84cd949c7ecffa738498e087f49d53289 /arch/powerpc/mm/hash_native_64.c | |
| parent | powerpc/64: Add an option to force run-at-load to test relocation (diff) | |
| download | linux-dev-3a849815a13695ad0e32f6f01c90544922a72229.tar.xz linux-dev-3a849815a13695ad0e32f6f01c90544922a72229.zip | |
powerpc/book3s64: Always build for power4 or later
When we're not compiling for a specific CPU, ie. none of the
CONFIG_POWERx_CPU options are set, and CONFIG_GENERIC_CPU *is* set, we
currently don't pass any -mcpu option to the compiler. This means the
compiler builds for a "generic" Power CPU.
But back in 2014 we dropped support for pre power4 CPUs in commit
468a33028edd ("powerpc: Drop support for pre-POWER4 cpus").
Given that, there's no point in building the kernel to run on pre power4
cpus. So update the flags we pass to the compiler when
CONFIG_GENERIC_CPU is set, to specify -mcpu=power4.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to '')
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