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authorNicholas Piggin <npiggin@gmail.com>2019-08-02 12:56:49 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2019-08-30 03:14:56 +0200
commit52b989231c6fad42dff57b69a53f38756db48e06 (patch)
tree536d1c73040e88e5a93837c0efc45e7f2717528a /arch/powerpc/kernel/exceptions-64s.S
parentpowerpc/64s/exception: remove EXCEPTION_PROLOG_0/1, rename _2 (diff)
downloadlinux-52b989231c6fad42dff57b69a53f38756db48e06.tar.xz
linux-52b989231c6fad42dff57b69a53f38756db48e06.zip
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
Diffstat (limited to '')
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S6
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)