diff options
| author | Richard Henderson <rth@twiddle.net> | 2014-06-30 09:53:46 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2015-05-18 13:03:46 -0700 |
| commit | f6b6b7b8a775f97edab43eb672d5991f534c2e61 (patch) | |
| tree | 71047a06310ab11413118be9959ae9ae81957e2e /target-alpha | |
| parent | 471d4930470aee38dffe6fc4890ede3d8eaf23c4 (diff) | |
target-alpha: Set EXC_M_SWC for exceptions from /S insns
Previously forgotten, the kernel needs the software completion bit to
know that it needs to emulate software completion qualified insns.
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-alpha')
| -rw-r--r-- | target-alpha/fpu_helper.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/target-alpha/fpu_helper.c b/target-alpha/fpu_helper.c index 6e84fd36aa..914c1d5258 100644 --- a/target-alpha/fpu_helper.c +++ b/target-alpha/fpu_helper.c @@ -55,10 +55,8 @@ static uint32_t soft_to_fpcr_exc(CPUAlphaState *env) } static void fp_exc_raise1(CPUAlphaState *env, uintptr_t retaddr, - uint32_t exc, uint32_t regno) + uint32_t exc, uint32_t regno, uint32_t hw_exc) { - uint32_t hw_exc = 0; - hw_exc |= CONVERT_BIT(exc, FPCR_INV, EXC_M_INV); hw_exc |= CONVERT_BIT(exc, FPCR_DZE, EXC_M_DZE); hw_exc |= CONVERT_BIT(exc, FPCR_OVF, EXC_M_FOV); @@ -79,7 +77,7 @@ void helper_fp_exc_raise(CPUAlphaState *env, uint32_t ignore, uint32_t regno) env->fpcr |= exc; exc &= ~ignore; if (exc) { - fp_exc_raise1(env, GETPC(), exc, regno); + fp_exc_raise1(env, GETPC(), exc, regno, 0); } } } @@ -93,7 +91,7 @@ void helper_fp_exc_raise_s(CPUAlphaState *env, uint32_t ignore, uint32_t regno) exc &= ~ignore; if (exc) { exc &= env->fpcr_exc_enable; - fp_exc_raise1(env, GETPC(), exc, regno); + fp_exc_raise1(env, GETPC(), exc, regno, EXC_M_SWC); } } } |