[PATCH v3] ARM: cache-l2x0: add resume entry for l2 in secure mode

[Shawn Guo]

On Thu, Sep 29, 2011 at 08:31:21PM -0700, Barry Song wrote:
> From: Barry Song <Baohua.Song at csr.com>
> 
> we save the l2x0 registers at the first initialization, and platform codes
> can get them to restore l2x0 status after wakeup.
> 
> Cc: Santosh Shilimkar <santosh.shilimkar at ti.com>
> Cc: Shawn Guo <shawn.guo at linaro.org>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi at arm.com>
> Signed-off-by: Barry Song <Baohua.Song at csr.com>
> ---
>  -v3:
>  save PREFETCH_CTRL and POWER_CTRL according to revision;
>  save l2x0 physical address so that asm codes can use.

On imx6q:

Tested-by: Shawn Guo <shawn.guo at linaro.org>

One minor comment below.

> 
>  arch/arm/include/asm/hardware/cache-l2x0.h |   23 +++++
>  arch/arm/include/asm/outercache.h          |    7 ++
>  arch/arm/kernel/asm-offsets.c              |   12 +++
>  arch/arm/mm/cache-l2x0.c                   |  129 +++++++++++++++++++++++++--
>  4 files changed, 161 insertions(+), 10 deletions(-)

[... ]

> diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
> index 0d85d22..3f9b998 100644
> --- a/arch/arm/mm/cache-l2x0.c
> +++ b/arch/arm/mm/cache-l2x0.c
> @@ -33,6 +33,14 @@ static DEFINE_SPINLOCK(l2x0_lock);
>  static uint32_t l2x0_way_mask;	/* Bitmask of active ways */
>  static uint32_t l2x0_size;
>  
> +struct l2x0_regs l2x0_saved_regs;
> +
Can we add a declaration of l2x0_saved_regs in cache-l2x0.h, so that
platform code does not need to declare it individually?

-- 
Regards,
Shawn