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| author | Jayachandran C <jchandra@broadcom.com> | 2013-06-10 10:30:00 +0400 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2013-06-13 19:46:41 +0400 |
| commit | 2c952e06e4f57716109b609956eda28c900faac0 (patch) | |
| tree | 39dc9361773009cdcfdc1e0e1752b446259d7cef /arch/mips/include/asm/cop2.h | |
| parent | 79f8511c83f13689913f54d2f189297c226ec064 (diff) | |
| download | linux-2c952e06e4f57716109b609956eda28c900faac0.tar.xz | |
MIPS: Move cop2 save/restore to switch_to()
Move the common code for saving and restoring platform specific COP2
registers to switch_to(). This will make supporting new platforms (like
Netlogic XLP) easier.
The platform specific COP2 definitions are to be specified in
asm/processor.h and in asm/cop2.h.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Cc: ddaney.cavm@gmail.com
Patchwork: https://patchwork.linux-mips.org/patch/5411/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/cop2.h')
| -rw-r--r-- | arch/mips/include/asm/cop2.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cop2.h b/arch/mips/include/asm/cop2.h index 3532e2c5f098..b17f38ee1ed4 100644 --- a/arch/mips/include/asm/cop2.h +++ b/arch/mips/include/asm/cop2.h @@ -11,6 +11,25 @@ #include <linux/notifier.h> +#if defined(CONFIG_CPU_CAVIUM_OCTEON) + +extern void octeon_cop2_save(struct octeon_cop2_state *); +extern void octeon_cop2_restore(struct octeon_cop2_state *); + +#define cop2_save(r) octeon_cop2_save(r) +#define cop2_restore(r) octeon_cop2_restore(r) + +#define cop2_present 1 +#define cop2_lazy_restore 1 + +#else + +#define cop2_present 0 +#define cop2_lazy_restore 0 +#define cop2_save(r) +#define cop2_restore(r) +#endif + enum cu2_ops { CU2_EXCEPTION, CU2_LWC2_OP, |