On Wed, Apr 19, 2023 at 04:00:54PM -0700, fei.y...@intel.com wrote:
> From: Fei Yang
>
> This patch implements Wa_22016122933.
>
> In MTL, memory writes initiated by Media tile update the whole
> cache line even for partial writes. This creates a coherency
> problem for cacheable memory if both
This is a important fix and can be pushed without depending on this series.
I will send this out to mailing list separately for CI.
Regards,
Nirmoy
On 4/20/2023 1:00 AM, fei.y...@intel.com wrote:
From: Fei Yang
This patch implements Wa_22016122933.
In MTL, memory writes initiated by
On 20.04.2023 01:00, fei.y...@intel.com wrote:
From: Fei Yang
This patch implements Wa_22016122933.
In MTL, memory writes initiated by Media tile update the whole
cache line even for partial writes. This creates a coherency
problem for cacheable memory if both CPU and GPU are writing data
to
From: Fei Yang
This patch implements Wa_22016122933.
In MTL, memory writes initiated by Media tile update the whole
cache line even for partial writes. This creates a coherency
problem for cacheable memory if both CPU and GPU are writing data
to different locations within a single cache line.
Hi Fei,
On Wed, Apr 19, 2023 at 02:12:15PM -0700, fei.y...@intel.com wrote:
> From: Fei Yang
>
> This patch implements Wa_22016122933.
>
> In MTL, memory writes initiated by Media tile update the whole
> cache line even for partial writes. This creates a coherency
> problem for cacheable
From: Fei Yang
This patch implements Wa_22016122933.
In MTL, memory writes initiated by Media tile update the whole
cache line even for partial writes. This creates a coherency
problem for cacheable memory if both CPU and GPU are writing data
to different locations within a single cache line.
>>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>>> index 1803a633ed64..98e682b7df07 100644
>>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>>> @@ -415,12 +415,6 @@ static int
From: Fei Yang
This patch implements Wa_22016122933.
In MTL, memory writes initiated by Media tile update the whole
cache line even for partial writes. This creates a coherency
problem for cacheable memory if both CPU and GPU are writing data
to different locations within a single cache line.
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>> index 1803a633ed64..98e682b7df07 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>> @@ -415,12 +415,6 @@ static int
On 17.04.2023 08:24, fei.y...@intel.com wrote:
From: Fei Yang
This patch implements Wa_22016122933.
In MTL, memory writes initiated by Media tile update the whole
cache line even for partial writes. This creates a coherency
problem for cacheable memory if both CPU and GPU are writing data
to
On 4/17/2023 8:24 AM, fei.y...@intel.com wrote:
From: Fei Yang
This patch implements Wa_22016122933.
In MTL, memory writes initiated by Media tile update the whole
cache line even for partial writes. This creates a coherency
problem for cacheable memory if both CPU and GPU are writing data
Hi Fei,
On Wed, Apr 19, 2023 at 12:59:09PM +0200, Andi Shyti wrote:
> Hi Fei,
>
> > --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> > +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> > @@ -743,6 +743,13 @@ struct i915_vma *intel_guc_allocate_vma(struct
> > intel_guc *guc, u32 size)
> > if
Hi Fei,
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> @@ -743,6 +743,13 @@ struct i915_vma *intel_guc_allocate_vma(struct intel_guc
> *guc, u32 size)
> if (IS_ERR(obj))
> return ERR_CAST(obj);
>
> + /*
> + *
From: Fei Yang
This patch implements Wa_22016122933.
In MTL, memory writes initiated by Media tile update the whole
cache line even for partial writes. This creates a coherency
problem for cacheable memory if both CPU and GPU are writing data
to different locations within a single cache line.
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