Re: [PATCH] drm/i915/icl: Whitelist GEN9_SLICE_COMMON_ECO_CHICKEN1

[Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>]

On 15/04/2019 12:45, Chris Wilson wrote:
> Quoting Tvrtko Ursulin (2019-04-15 12:43:07)
>> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>>
>> WaEnableStateCacheRedirectToCS context workaround configures the L3 cache
>> to benefit 3d workloads but media has different requirements.
>>
>> Whitelist the register to allow media re-configuring it to their liking.
>>
>> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>> Cc: kevin.ma@intel.com
>> Cc: xiaogang.li@intel.com
>> ---
>>   drivers/gpu/drm/i915/intel_workarounds.c | 3 +++
>>   1 file changed, 3 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c
>> index ccaf63679435..6458d161204f 100644
>> --- a/drivers/gpu/drm/i915/intel_workarounds.c
>> +++ b/drivers/gpu/drm/i915/intel_workarounds.c
>> @@ -1050,6 +1050,9 @@ static void icl_whitelist_build(struct i915_wa_list *w)
>>   
>>          /* WaAllowUMDToModifySamplerMode:icl */
>>          whitelist_reg(w, GEN10_SAMPLER_MODE);
>> +
>> +       /* WaEnableStateCacheRedirectToCS:icl */
>> +       whitelist_reg(w, GEN9_SLICE_COMMON_ECO_CHICKEN1);
> 
> Have we checked this is context saved?

It is listed as such. But I haven't checked on actual hardware.

Regards,

Tvrtko
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