[V3] powerpc/irq: Enable some more exceptions in /proc/interrupts interface
mpe at ellerman.id.au
Tue Aug 4 19:57:26 AEST 2015
On Mon, 2015-13-07 at 08:16:06 UTC, Anshuman Khandual wrote:
> This patch enables facility unavailable exceptions for generic facility,
> FPU, ALTIVEC and VSX in /proc/interrupts listing by incrementing their
> newly added IRQ statistical counters as and when these exceptions happen.
> This also adds couple of helper functions which will be called from within
> the interrupt handler context to update their statistics. Similarly this
> patch also enables alignment and program check exceptions as well.
> diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
> index 0a0399c2..a86180c 100644
> --- a/arch/powerpc/kernel/exceptions-64s.S
> +++ b/arch/powerpc/kernel/exceptions-64s.S
> @@ -1158,6 +1158,7 @@ BEGIN_FTR_SECTION
> bl load_up_fpu
> + bl fpu_unav_exceptions_count
Is it safe to call C code here?
> b fast_exception_return
> #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
> 2: /* User process was in a transaction */
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