Re: [PATCH] drm/i915/skl WaDisableSbeCacheDispatchPortSharing

Siluvery, Arun
2015-08-06T14:31:02Z

On 06/08/2015 14:51, Mika Kuoppala wrote:
> Add WaDisableSbeCacheDispatchPortSharing:skl
>
> Cc: Arun Siluvery <arun.siluvery@linux.intel.com>
> Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
> ---
> drivers/gpu/drm/i915/intel_ringbuffer.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
> index 1c14233..1a10358 100644
> --- a/drivers/gpu/drm/i915/intel_ringbuffer.c
> +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
> @@ -1059,6 +1059,13 @@ static int skl_init_workarounds(struct intel_engine_cs *ring)
> HDC_FENCE_DEST_SLM_DISABLE |
> HDC_BARRIER_PERFORMANCE_DISABLE);
>
> + /* WaDisableSbeCacheDispatchPortSharing:skl */
> + if (INTEL_REVID(dev) <= SKL_REVID_F0) {
> + WA_SET_BIT_MASKED(
> + GEN7_HALF_SLICE_CHICKEN1,
> + GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE);
> + }
> +
seems to be applicable for BXT also until B0.

regards
Arun

> return skl_tune_iz_hashing(ring);
> }