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| author | Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> | 2014-11-25 11:08:45 +0100 |
|---|---|---|
| committer | Markos Chandras <markos.chandras@imgtec.com> | 2015-02-17 16:37:27 +0100 |
| commit | 8d5b9b771ee4907351707b05a81a345620f73ff9 (patch) | |
| tree | f061da49f47e57a8420df11fcfe7ef01e1d4868e | |
| parent | MIPS: kernel: r4k_switch: Add support for MIPS R6 (diff) | |
| download | linux-8d5b9b771ee4907351707b05a81a345620f73ff9.tar.xz linux-8d5b9b771ee4907351707b05a81a345620f73ff9.zip | |
MIPS: kernel: r4k_fpu: Add support for MIPS R6
Add the MIPS R6 related preprocessor definitions for FPU signal
related functions. MIPS R6 only has FR=1 so avoid checking that
bit on the C0/Status register.
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
| -rw-r--r-- | arch/mips/kernel/r4k_fpu.S | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/mips/kernel/r4k_fpu.S b/arch/mips/kernel/r4k_fpu.S index 6c160c67984c..676c5030a953 100644 --- a/arch/mips/kernel/r4k_fpu.S +++ b/arch/mips/kernel/r4k_fpu.S @@ -34,7 +34,7 @@ .endm .set noreorder - .set arch=r4000 + .set MIPS_ISA_ARCH_LEVEL_RAW LEAF(_save_fp_context) .set push @@ -42,7 +42,8 @@ LEAF(_save_fp_context) cfc1 t1, fcr31 .set pop -#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) +#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \ + defined(CONFIG_CPU_MIPS32_R6) .set push SET_HARDFLOAT #ifdef CONFIG_CPU_MIPS32_R2 @@ -105,10 +106,12 @@ LEAF(_save_fp_context32) SET_HARDFLOAT cfc1 t1, fcr31 +#ifndef CONFIG_CPU_MIPS64_R6 mfc0 t0, CP0_STATUS sll t0, t0, 5 bgez t0, 1f # skip storing odd if FR=0 nop +#endif /* Store the 16 odd double precision registers */ EX sdc1 $f1, SC32_FPREGS+8(a0) @@ -163,7 +166,8 @@ LEAF(_save_fp_context32) LEAF(_restore_fp_context) EX lw t1, SC_FPC_CSR(a0) -#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) +#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \ + defined(CONFIG_CPU_MIPS32_R6) .set push SET_HARDFLOAT #ifdef CONFIG_CPU_MIPS32_R2 @@ -223,10 +227,12 @@ LEAF(_restore_fp_context32) SET_HARDFLOAT EX lw t1, SC32_FPC_CSR(a0) +#ifndef CONFIG_CPU_MIPS64_R6 mfc0 t0, CP0_STATUS sll t0, t0, 5 bgez t0, 1f # skip loading odd if FR=0 nop +#endif EX ldc1 $f1, SC32_FPREGS+8(a0) EX ldc1 $f3, SC32_FPREGS+24(a0) |