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| author | Nicholas Piggin <npiggin@gmail.com> | 2019-08-02 20:56:49 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-08-30 11:14:56 +1000 |
| commit | 52b989231c6fad42dff57b69a53f38756db48e06 (patch) | |
| tree | 536d1c73040e88e5a93837c0efc45e7f2717528a | |
| parent | d29768e13cf6b50bd54a690e2ac52ab71465e2eb (diff) | |
| download | linux-52b989231c6fad42dff57b69a53f38756db48e06.tar.bz2 | |
powerpc/64s/exception: Add the virt variant of the denorm interrupt handler
All other virt handlers have the prolog code in the virt vector rather
than branch to the real vector. Follow this pattern in the denorm virt
handler.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190802105709.27696-25-npiggin@gmail.com
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 1ae2a8d59aa0..d2aa63b6a8a8 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -1852,7 +1852,11 @@ EXC_REAL_END(denorm_exception_hv, 0x1500, 0x100) #ifdef CONFIG_PPC_DENORMALISATION EXC_VIRT_BEGIN(denorm_exception, 0x5500, 0x100) - b exc_real_0x1500_denorm_exception_hv + INT_HANDLER denorm_exception, 0x1500, 0, 2, 1, EXC_HV, PACA_EXGEN, 1, 0, 0, 0, 0 + mfspr r10,SPRN_HSRR1 + andis. r10,r10,(HSRR1_DENORM)@h /* denorm? */ + bne+ denorm_assist + INT_VIRT_SAVE_SRR_AND_JUMP denorm_common, EXC_HV EXC_VIRT_END(denorm_exception, 0x5500, 0x100) #else EXC_VIRT_NONE(0x5500, 0x100) |