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* [PATCH v2] drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate
@ 2016-06-09 14:49 tim.gore
  2016-06-09 15:15 ` ✗ Ro.CI.BAT: warning for drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate (rev2) Patchwork
  2016-06-10  6:30 ` [PATCH v2] drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate Arun Siluvery
  0 siblings, 2 replies; 6+ messages in thread
From: tim.gore @ 2016-06-09 14:49 UTC (permalink / raw)
  To: intel-gfx

From: Tim Gore <tim.gore@intel.com>

This patch enables a workaround for a mid thread preemption
issue where a hardware timing problem can prevent the
context restore from happening, leading to a hang.

v2: move to gen9_init_workarounds (Arun)

Signed-off-by: Tim Gore <tim.gore@intel.com>
---
 drivers/gpu/drm/i915/i915_reg.h         | 4 ++++
 drivers/gpu/drm/i915/intel_ringbuffer.c | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 81d1896..2a6fc62 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1810,6 +1810,10 @@ enum skl_disp_power_wells {
 #define   GEN9_IZ_HASHING_MASK(slice)			(0x3 << ((slice) * 2))
 #define   GEN9_IZ_HASHING(slice, val)			((val) << ((slice) * 2))
 
+/* chicken reg for WaConextSwitchWithConcurrentTLBInvalidate */
+#define GEN9_CSFE_CHICKEN1_RCS _MMIO(0x20D4)
+#define   GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE (1 << 2)
+
 /* WaClearTdlStateAckDirtyBits */
 #define GEN8_STATE_ACK		_MMIO(0x20F0)
 #define GEN9_STATE_ACK_SLICE1	_MMIO(0x20F8)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index cf8d0bf..7c756ac 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1022,6 +1022,9 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine)
 	if (ret)
 		return ret;
 
+	/* WaConextSwitchWithConcurrentTLBInvalidate:skl,bxt,kbl */
+	I915_WRITE(GEN9_CSFE_CHICKEN1_RCS, _MASKED_BIT_ENABLE(GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE));
+
 	return 0;
 }
 
-- 
1.9.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 6+ messages in thread

* ✗ Ro.CI.BAT: warning for drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate (rev2)
  2016-06-09 14:49 [PATCH v2] drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate tim.gore
@ 2016-06-09 15:15 ` Patchwork
  2016-06-10  6:30 ` [PATCH v2] drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate Arun Siluvery
  1 sibling, 0 replies; 6+ messages in thread
From: Patchwork @ 2016-06-09 15:15 UTC (permalink / raw)
  To: tim.gore; +Cc: intel-gfx

== Series Details ==

Series: drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate (rev2)
URL   : https://patchwork.freedesktop.org/series/8487/
State : warning

== Summary ==

Series 8487v2 drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate
http://patchwork.freedesktop.org/api/1.0/series/8487/revisions/2/mbox

Test gem_exec_flush:
        Subgroup basic-batch-kernel-default-cmd:
                fail       -> PASS       (ro-byt-n2820)
Test kms_pipe_crc_basic:
        Subgroup suspend-read-crc-pipe-a:
                pass       -> DMESG-WARN (fi-snb-i7-2600)
        Subgroup suspend-read-crc-pipe-c:
                skip       -> DMESG-WARN (ro-bdw-i5-5250u)

fi-bdw-i7-5557u  total:213  pass:201  dwarn:0   dfail:0   fail:0   skip:12 
fi-skl-i5-6260u  total:213  pass:202  dwarn:0   dfail:0   fail:0   skip:11 
fi-skl-i7-6700k  total:213  pass:188  dwarn:0   dfail:0   fail:0   skip:25 
fi-snb-i7-2600   total:213  pass:173  dwarn:1   dfail:0   fail:0   skip:39 
ro-bdw-i5-5250u  total:213  pass:197  dwarn:4   dfail:0   fail:0   skip:12 
ro-bdw-i7-5600u  total:213  pass:185  dwarn:0   dfail:0   fail:0   skip:28 
ro-bsw-n3050     total:213  pass:172  dwarn:0   dfail:0   fail:2   skip:39 
ro-byt-n2820     total:213  pass:174  dwarn:0   dfail:0   fail:2   skip:37 
ro-hsw-i7-4770r  total:213  pass:190  dwarn:0   dfail:0   fail:0   skip:23 
ro-ilk1-i5-650   total:208  pass:150  dwarn:0   dfail:0   fail:1   skip:57 
ro-ivb-i7-3770   total:213  pass:181  dwarn:0   dfail:0   fail:0   skip:32 
ro-ivb2-i7-3770  total:213  pass:185  dwarn:0   dfail:0   fail:0   skip:28 
ro-snb-i7-2620M  total:213  pass:174  dwarn:0   dfail:0   fail:1   skip:38 
fi-hsw-i7-4770k failed to connect after reboot

Results at /archive/results/CI_IGT_test/RO_Patchwork_1149/

487a126 drm-intel-nightly: 2016y-06m-09d-10h-05m-55s UTC integration manifest
6755d5e drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH v2] drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate
  2016-06-09 14:49 [PATCH v2] drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate tim.gore
  2016-06-09 15:15 ` ✗ Ro.CI.BAT: warning for drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate (rev2) Patchwork
@ 2016-06-10  6:30 ` Arun Siluvery
  2016-06-10  6:46   ` Gore, Tim
  1 sibling, 1 reply; 6+ messages in thread
From: Arun Siluvery @ 2016-06-10  6:30 UTC (permalink / raw)
  To: tim.gore, intel-gfx

On 09/06/2016 20:19, tim.gore@intel.com wrote:
> From: Tim Gore <tim.gore@intel.com>
>
> This patch enables a workaround for a mid thread preemption
> issue where a hardware timing problem can prevent the
> context restore from happening, leading to a hang.
>
> v2: move to gen9_init_workarounds (Arun)
>
> Signed-off-by: Tim Gore <tim.gore@intel.com>
> ---
>   drivers/gpu/drm/i915/i915_reg.h         | 4 ++++
>   drivers/gpu/drm/i915/intel_ringbuffer.c | 3 +++
>   2 files changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 81d1896..2a6fc62 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -1810,6 +1810,10 @@ enum skl_disp_power_wells {
>   #define   GEN9_IZ_HASHING_MASK(slice)			(0x3 << ((slice) * 2))
>   #define   GEN9_IZ_HASHING(slice, val)			((val) << ((slice) * 2))
>
> +/* chicken reg for WaConextSwitchWithConcurrentTLBInvalidate */
> +#define GEN9_CSFE_CHICKEN1_RCS _MMIO(0x20D4)
> +#define   GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE (1 << 2)
> +
>   /* WaClearTdlStateAckDirtyBits */
>   #define GEN8_STATE_ACK		_MMIO(0x20F0)
>   #define GEN9_STATE_ACK_SLICE1	_MMIO(0x20F8)
> diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
> index cf8d0bf..7c756ac 100644
> --- a/drivers/gpu/drm/i915/intel_ringbuffer.c
> +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
> @@ -1022,6 +1022,9 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine)
>   	if (ret)
>   		return ret;
>
> +	/* WaConextSwitchWithConcurrentTLBInvalidate:skl,bxt,kbl */
> +	I915_WRITE(GEN9_CSFE_CHICKEN1_RCS, _MASKED_BIT_ENABLE(GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE));
> +
WA_SET_BIT_MASKED(GEN9_CSFE_CHICKEN1_RCS, 
GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE);

Please correct the spelling.
We should try to keep WA regs in some order although it is not true for 
some of the existing ones but we should try to follow this rule for the 
new ones; HW whitelist registers are normally kept at the end.
I think the correct place for this one is at the beginning of this 
function to maintain increasing order.

regards
Arun


>   	return 0;
>   }
>
>

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH v2] drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate
  2016-06-10  6:30 ` [PATCH v2] drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate Arun Siluvery
@ 2016-06-10  6:46   ` Gore, Tim
  2016-06-10  8:38     ` Arun Siluvery
  0 siblings, 1 reply; 6+ messages in thread
From: Gore, Tim @ 2016-06-10  6:46 UTC (permalink / raw)
  To: Arun Siluvery, intel-gfx



Tim Gore 
Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ


> -----Original Message-----
> From: Arun Siluvery [mailto:arun.siluvery@linux.intel.com]
> Sent: Friday, June 10, 2016 7:30 AM
> To: Gore, Tim; intel-gfx@lists.freedesktop.org
> Subject: Re: [PATCH v2] drm/i915/gen9: implement
> WaConextSwitchWithConcurrentTLBInvalidate
> 
> On 09/06/2016 20:19, tim.gore@intel.com wrote:
> > From: Tim Gore <tim.gore@intel.com>
> >
> > This patch enables a workaround for a mid thread preemption issue
> > where a hardware timing problem can prevent the context restore from
> > happening, leading to a hang.
> >
> > v2: move to gen9_init_workarounds (Arun)
> >
> > Signed-off-by: Tim Gore <tim.gore@intel.com>
> > ---
> >   drivers/gpu/drm/i915/i915_reg.h         | 4 ++++
> >   drivers/gpu/drm/i915/intel_ringbuffer.c | 3 +++
> >   2 files changed, 7 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_reg.h
> > b/drivers/gpu/drm/i915/i915_reg.h index 81d1896..2a6fc62 100644
> > --- a/drivers/gpu/drm/i915/i915_reg.h
> > +++ b/drivers/gpu/drm/i915/i915_reg.h
> > @@ -1810,6 +1810,10 @@ enum skl_disp_power_wells {
> >   #define   GEN9_IZ_HASHING_MASK(slice)			(0x3 <<
> ((slice) * 2))
> >   #define   GEN9_IZ_HASHING(slice, val)			((val) <<
> ((slice) * 2))
> >
> > +/* chicken reg for WaConextSwitchWithConcurrentTLBInvalidate */
> > +#define GEN9_CSFE_CHICKEN1_RCS _MMIO(0x20D4)
> > +#define   GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE (1 << 2)
> > +
> >   /* WaClearTdlStateAckDirtyBits */
> >   #define GEN8_STATE_ACK		_MMIO(0x20F0)
> >   #define GEN9_STATE_ACK_SLICE1	_MMIO(0x20F8)
> > diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c
> > b/drivers/gpu/drm/i915/intel_ringbuffer.c
> > index cf8d0bf..7c756ac 100644
> > --- a/drivers/gpu/drm/i915/intel_ringbuffer.c
> > +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
> > @@ -1022,6 +1022,9 @@ static int gen9_init_workarounds(struct
> intel_engine_cs *engine)
> >   	if (ret)
> >   		return ret;
> >
> > +	/* WaConextSwitchWithConcurrentTLBInvalidate:skl,bxt,kbl */
> > +	I915_WRITE(GEN9_CSFE_CHICKEN1_RCS,
> >
> +_MASKED_BIT_ENABLE(GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE)
> );
> > +
> WA_SET_BIT_MASKED(GEN9_CSFE_CHICKEN1_RCS,
> GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE);
> 
> Please correct the spelling.
> We should try to keep WA regs in some order although it is not true for some
> of the existing ones but we should try to follow this rule for the new ones;
> HW whitelist registers are normally kept at the end.
> I think the correct place for this one is at the beginning of this function to
> maintain increasing order.
> 
> regards
> Arun
> 
> 
Which spelling do you want corrected?

  Tim
> >   	return 0;
> >   }
> >
> >

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH v2] drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate
  2016-06-10  6:46   ` Gore, Tim
@ 2016-06-10  8:38     ` Arun Siluvery
  2016-06-10  8:51       ` Gore, Tim
  0 siblings, 1 reply; 6+ messages in thread
From: Arun Siluvery @ 2016-06-10  8:38 UTC (permalink / raw)
  To: Gore, Tim, intel-gfx

On 10/06/2016 12:16, Gore, Tim wrote:
>
>
> Tim Gore
> Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ
>
>
>> -----Original Message-----
>> From: Arun Siluvery [mailto:arun.siluvery@linux.intel.com]
>> Sent: Friday, June 10, 2016 7:30 AM
>> To: Gore, Tim; intel-gfx@lists.freedesktop.org
>> Subject: Re: [PATCH v2] drm/i915/gen9: implement
>> WaConextSwitchWithConcurrentTLBInvalidate
>>
>> On 09/06/2016 20:19, tim.gore@intel.com wrote:
>>> From: Tim Gore <tim.gore@intel.com>
>>>
>>> This patch enables a workaround for a mid thread preemption issue
>>> where a hardware timing problem can prevent the context restore from
>>> happening, leading to a hang.
>>>
>>> v2: move to gen9_init_workarounds (Arun)
>>>
>>> Signed-off-by: Tim Gore <tim.gore@intel.com>
>>> ---
>>>    drivers/gpu/drm/i915/i915_reg.h         | 4 ++++
>>>    drivers/gpu/drm/i915/intel_ringbuffer.c | 3 +++
>>>    2 files changed, 7 insertions(+)
>>>
>>> diff --git a/drivers/gpu/drm/i915/i915_reg.h
>>> b/drivers/gpu/drm/i915/i915_reg.h index 81d1896..2a6fc62 100644
>>> --- a/drivers/gpu/drm/i915/i915_reg.h
>>> +++ b/drivers/gpu/drm/i915/i915_reg.h
>>> @@ -1810,6 +1810,10 @@ enum skl_disp_power_wells {
>>>    #define   GEN9_IZ_HASHING_MASK(slice)			(0x3 <<
>> ((slice) * 2))
>>>    #define   GEN9_IZ_HASHING(slice, val)			((val) <<
>> ((slice) * 2))
>>>
>>> +/* chicken reg for WaConextSwitchWithConcurrentTLBInvalidate */
>>> +#define GEN9_CSFE_CHICKEN1_RCS _MMIO(0x20D4)
>>> +#define   GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE (1 << 2)
>>> +
>>>    /* WaClearTdlStateAckDirtyBits */
>>>    #define GEN8_STATE_ACK		_MMIO(0x20F0)
>>>    #define GEN9_STATE_ACK_SLICE1	_MMIO(0x20F8)
>>> diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c
>>> b/drivers/gpu/drm/i915/intel_ringbuffer.c
>>> index cf8d0bf..7c756ac 100644
>>> --- a/drivers/gpu/drm/i915/intel_ringbuffer.c
>>> +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
>>> @@ -1022,6 +1022,9 @@ static int gen9_init_workarounds(struct
>> intel_engine_cs *engine)
>>>    	if (ret)
>>>    		return ret;
>>>
>>> +	/* WaConextSwitchWithConcurrentTLBInvalidate:skl,bxt,kbl */
>>> +	I915_WRITE(GEN9_CSFE_CHICKEN1_RCS,
>>>
>> +_MASKED_BIT_ENABLE(GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE)
>> );
>>> +
>> WA_SET_BIT_MASKED(GEN9_CSFE_CHICKEN1_RCS,
>> GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE);
>>
>> Please correct the spelling.
>> We should try to keep WA regs in some order although it is not true for some
>> of the existing ones but we should try to follow this rule for the new ones;
>> HW whitelist registers are normally kept at the end.
>> I think the correct place for this one is at the beginning of this function to
>> maintain increasing order.
>>
>> regards
>> Arun
>>
>>
> Which spelling do you want corrected?

WaConextSwitchWithConcurrentTLBInvalidate - two occurrences.

regards
Arun

>
>    Tim
>>>    	return 0;
>>>    }
>>>
>>>
>
>

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH v2] drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate
  2016-06-10  8:38     ` Arun Siluvery
@ 2016-06-10  8:51       ` Gore, Tim
  0 siblings, 0 replies; 6+ messages in thread
From: Gore, Tim @ 2016-06-10  8:51 UTC (permalink / raw)
  To: Arun Siluvery, intel-gfx



Tim Gore 
Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ


> -----Original Message-----
> From: Arun Siluvery [mailto:arun.siluvery@linux.intel.com]
> Sent: Friday, June 10, 2016 9:38 AM
> To: Gore, Tim; intel-gfx@lists.freedesktop.org
> Subject: Re: [PATCH v2] drm/i915/gen9: implement
> WaConextSwitchWithConcurrentTLBInvalidate
> 
> On 10/06/2016 12:16, Gore, Tim wrote:
> >
> >
> > Tim Gore
> > Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon
> > SN3 1RJ
> >
> >
> >> -----Original Message-----
> >> From: Arun Siluvery [mailto:arun.siluvery@linux.intel.com]
> >> Sent: Friday, June 10, 2016 7:30 AM
> >> To: Gore, Tim; intel-gfx@lists.freedesktop.org
> >> Subject: Re: [PATCH v2] drm/i915/gen9: implement
> >> WaConextSwitchWithConcurrentTLBInvalidate
> >>
> >> On 09/06/2016 20:19, tim.gore@intel.com wrote:
> >>> From: Tim Gore <tim.gore@intel.com>
> >>>
> >>> This patch enables a workaround for a mid thread preemption issue
> >>> where a hardware timing problem can prevent the context restore from
> >>> happening, leading to a hang.
> >>>
> >>> v2: move to gen9_init_workarounds (Arun)
> >>>
> >>> Signed-off-by: Tim Gore <tim.gore@intel.com>
> >>> ---
> >>>    drivers/gpu/drm/i915/i915_reg.h         | 4 ++++
> >>>    drivers/gpu/drm/i915/intel_ringbuffer.c | 3 +++
> >>>    2 files changed, 7 insertions(+)
> >>>
> >>> diff --git a/drivers/gpu/drm/i915/i915_reg.h
> >>> b/drivers/gpu/drm/i915/i915_reg.h index 81d1896..2a6fc62 100644
> >>> --- a/drivers/gpu/drm/i915/i915_reg.h
> >>> +++ b/drivers/gpu/drm/i915/i915_reg.h
> >>> @@ -1810,6 +1810,10 @@ enum skl_disp_power_wells {
> >>>    #define   GEN9_IZ_HASHING_MASK(slice)			(0x3
> <<
> >> ((slice) * 2))
> >>>    #define   GEN9_IZ_HASHING(slice, val)			((val) <<
> >> ((slice) * 2))
> >>>
> >>> +/* chicken reg for WaConextSwitchWithConcurrentTLBInvalidate */
> >>> +#define GEN9_CSFE_CHICKEN1_RCS _MMIO(0x20D4)
> >>> +#define   GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE (1 << 2)
> >>> +
> >>>    /* WaClearTdlStateAckDirtyBits */
> >>>    #define GEN8_STATE_ACK		_MMIO(0x20F0)
> >>>    #define GEN9_STATE_ACK_SLICE1	_MMIO(0x20F8)
> >>> diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c
> >>> b/drivers/gpu/drm/i915/intel_ringbuffer.c
> >>> index cf8d0bf..7c756ac 100644
> >>> --- a/drivers/gpu/drm/i915/intel_ringbuffer.c
> >>> +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
> >>> @@ -1022,6 +1022,9 @@ static int gen9_init_workarounds(struct
> >> intel_engine_cs *engine)
> >>>    	if (ret)
> >>>    		return ret;
> >>>
> >>> +	/* WaConextSwitchWithConcurrentTLBInvalidate:skl,bxt,kbl */
> >>> +	I915_WRITE(GEN9_CSFE_CHICKEN1_RCS,
> >>>
> >>
> +_MASKED_BIT_ENABLE(GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE)
> >> );
> >>> +
> >> WA_SET_BIT_MASKED(GEN9_CSFE_CHICKEN1_RCS,
> >> GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE);
> >>
> >> Please correct the spelling.
> >> We should try to keep WA regs in some order although it is not true
> >> for some of the existing ones but we should try to follow this rule
> >> for the new ones; HW whitelist registers are normally kept at the end.
> >> I think the correct place for this one is at the beginning of this
> >> function to maintain increasing order.
> >>
> >> regards
> >> Arun
> >>
> >>
> > Which spelling do you want corrected?
> 
> WaConextSwitchWithConcurrentTLBInvalidate - two occurrences.
> 
> regards
> Arun
> 
As per my previous replies to Jani and you, WaConextSwitchWithConcurrentTLBInvalidate
is copied directly from the documentation (bug report etc) and also from another
implementation of this workaround. Actually, to be precise the spec has
"WAConextSwitchWithConcurrentTLBInvalidate" (capitalised WA), but the bug report
and other implementation use "WaConextSwitchWithConcurrentTLBInvalidate".
I am not really comfortable with using a different spelling here, even if it is "correct".
Seems like it could lead to confusion or at least trip up some script.

  Tim
> >
> >    Tim
> >>>    	return 0;
> >>>    }
> >>>
> >>>
> >
> >

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 6+ messages in thread

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Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-06-09 14:49 [PATCH v2] drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate tim.gore
2016-06-09 15:15 ` ✗ Ro.CI.BAT: warning for drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate (rev2) Patchwork
2016-06-10  6:30 ` [PATCH v2] drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate Arun Siluvery
2016-06-10  6:46   ` Gore, Tim
2016-06-10  8:38     ` Arun Siluvery
2016-06-10  8:51       ` Gore, Tim

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