On Apr 5, 2011, at 1:28 AM, Michael Ellerman wrote:
> The calculation of the size for the exception save area of the TLB
> miss handler is wrong, luckily it's too big not too small.
>
> Rework it to make it a bit clearer, and also correct. We want 3 save
> areas, each EX_TLB_SIZE _bytes_.
Where does the 3 come from? I have a guess, and think its possible we (FSL)
want 4?
>
> Signed-off-by: Michael Ellerman <mich...@ellerman.id.au>
> ---
> arch/powerpc/include/asm/paca.h | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
> index ec57540..f7aa4fd 100644
> --- a/arch/powerpc/include/asm/paca.h
> +++ b/arch/powerpc/include/asm/paca.h
> @@ -106,7 +106,7 @@ struct paca_struct {
> pgd_t *pgd; /* Current PGD */
> pgd_t *kernel_pgd; /* Kernel PGD */
> u64 exgen[8] __attribute__((aligned(0x80)));
> - u64 extlb[EX_TLB_SIZE*3] __attribute__((aligned(0x80)));
> + u64 extlb[3][EX_TLB_SIZE / sizeof(u64)] __attribute__((aligned(0x80)));
> u64 exmc[8]; /* used for machine checks */
> u64 excrit[8]; /* used for crit interrupts */
> u64 exdbg[8]; /* used for debug interrupts */
> --
> 1.7.1
>
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