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| author | David Daney <david.daney@cavium.com> | 2014-05-28 23:52:04 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-05-30 21:01:09 +0200 |
| commit | a36d8225bceba4b7be47ade34d175945f85cffbc (patch) | |
| tree | e410a514298003ab96d3a10cf091c518a8a423c8 /arch/mips/kernel/r4k_switch.S | |
| parent | dadaa1c2c0eddc09d11d7494b040c3f331ecd98f (diff) | |
| download | lwn-a36d8225bceba4b7be47ade34d175945f85cffbc.tar.gz lwn-a36d8225bceba4b7be47ade34d175945f85cffbc.zip | |
MIPS: OCTEON: Enable use of FPU
Some versions of the assembler will not assemble CFC1 for OCTEON, so
override the ISA for these.
Add r4k_fpu.o to handle low level FPU initialization.
Modify octeon_switch.S to save the FPU registers. And include
r4k_switch.S to pick up more FPU support.
Get rid of "#define cpu_has_fpu 0"
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7006/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/r4k_switch.S')
| -rw-r--r-- | arch/mips/kernel/r4k_switch.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S index 547c522964de..81ca3f70fe29 100644 --- a/arch/mips/kernel/r4k_switch.S +++ b/arch/mips/kernel/r4k_switch.S @@ -28,6 +28,7 @@ */ #define ST_OFF (_THREAD_SIZE - 32 - PT_SIZE + PT_STATUS) +#ifndef USE_ALTERNATE_RESUME_IMPL /* * task_struct *resume(task_struct *prev, task_struct *next, * struct thread_info *next_ti, s32 fp_save) @@ -99,6 +100,8 @@ jr ra END(resume) +#endif /* USE_ALTERNATE_RESUME_IMPL */ + /* * Save a thread's fp context. */ |