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authorDavid Daney <david.daney@cavium.com>2014-05-28 23:52:04 +0200
committerRalf Baechle <ralf@linux-mips.org>2014-05-30 21:01:09 +0200
commita36d8225bceba4b7be47ade34d175945f85cffbc (patch)
treee410a514298003ab96d3a10cf091c518a8a423c8 /arch/mips/kernel/r4k_switch.S
parentdadaa1c2c0eddc09d11d7494b040c3f331ecd98f (diff)
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.S3
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.
*/