[Intel-gfx] [PATCH 6/8] drm/i915/skl: Add GEN8_L3SQCREG4 to HW whitelist

[Nick Hoath]

On 13/01/2016 10:06, Arun Siluvery wrote:
> Required for WaDisableLSQCROPERFforOCL:skl
>
> Signed-off-by: Arun Siluvery <arun.siluvery at linux.intel.com>

Reviewed-by: Nick Hoath <nicholas.hoath at intel.com>

> ---
>   drivers/gpu/drm/i915/intel_ringbuffer.c | 5 +++++
>   1 file changed, 5 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
> index 5eb4eea..b8dbd2c 100644
> --- a/drivers/gpu/drm/i915/intel_ringbuffer.c
> +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
> @@ -1097,6 +1097,11 @@ static int skl_init_workarounds(struct intel_engine_cs *ring)
>   			GEN7_HALF_SLICE_CHICKEN1,
>   			GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE);
>
> +	/* WaDisableLSQCROPERFforOCL:skl */
> +	ret = wa_ring_whitelist_reg(ring, GEN8_L3SQCREG4);
> +	if (ret)
> +		return ret;
> +
>   	return skl_tune_iz_hashing(ring);
>   }
>
>