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| author | Ralf Baechle <ralf@linux-mips.org> | 2013-05-21 17:33:32 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2013-05-22 01:34:28 +0200 |
| commit | 087d990b371c59edbfc119600e2d2eda18366292 (patch) | |
| tree | 43869914c4a0680a7b560576f7169c80354138f3 /arch/mips/kernel/genex.S | |
| parent | MIPS: Idle: Do address fiddlery in helper functions. (diff) | |
| download | linux-087d990b371c59edbfc119600e2d2eda18366292.tar.xz linux-087d990b371c59edbfc119600e2d2eda18366292.zip | |
MIPS: Idle: Break r4k_wait into two functions and fix it.
local_irq_enable() may expand into very different code, so it rather should
stay in C. Also this keeps the assembler code size constant which keeps
the rollback code simple. So it's best to split r4k_wait into two parts,
one C and one assembler.
Finally add the local_irq_enable() to r4k_wait to ensure the WAIT
instruction in __r4k_wait() will work properly.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/genex.S')
| -rw-r--r-- | arch/mips/kernel/genex.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S index 9098829bfcb0..31fa856829cb 100644 --- a/arch/mips/kernel/genex.S +++ b/arch/mips/kernel/genex.S @@ -122,7 +122,7 @@ handle_vcei: __FINIT .align 5 /* 32 byte rollback region */ -LEAF(r4k_wait) +LEAF(__r4k_wait) .set push .set noreorder /* start of rollback region */ @@ -146,14 +146,14 @@ LEAF(r4k_wait) jr ra nop .set pop - END(r4k_wait) + END(__r4k_wait) .macro BUILD_ROLLBACK_PROLOGUE handler FEXPORT(rollback_\handler) .set push .set noat MFC0 k0, CP0_EPC - PTR_LA k1, r4k_wait + PTR_LA k1, __r4k_wait ori k0, 0x1f /* 32 byte rollback region */ xori k0, 0x1f bne k0, k1, 9f |