* [PATCH] drm/i915: Flag the execlists context object as dirty after every use
@ 2015-08-14 11:59 Chris Wilson
2015-08-14 12:18 ` [Intel-gfx] " Daniel Vetter
2015-08-16 7:38 ` shuang.he
0 siblings, 2 replies; 4+ messages in thread
From: Chris Wilson @ 2015-08-14 11:59 UTC (permalink / raw)
To: intel-gfx; +Cc: Chris Wilson, stable
Everytime we use the logical context with execlists it becomes dirty (as
the hardware will write the new register values afterwards, as well as
the GPU state that will be used). We need to then flag the context as
dirty everytime since after a swap-out/swap-in cycle the dirty flag will
be cleared, and a further swap-out cycle will then loose the most recent
GPU state.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
---
drivers/gpu/drm/i915/intel_lrc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 138964afd187..41cfa6fa909d 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -1013,6 +1013,8 @@ static int intel_lr_context_pin(struct drm_i915_gem_request *rq)
ret = intel_pin_and_map_ringbuffer_obj(ring->dev, ringbuf);
if (ret)
goto unpin_ctx_obj;
+
+ ctx_obj->dirty = true;
}
return ret;
--
2.5.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [Intel-gfx] [PATCH] drm/i915: Flag the execlists context object as dirty after every use
2015-08-14 11:59 [PATCH] drm/i915: Flag the execlists context object as dirty after every use Chris Wilson
@ 2015-08-14 12:18 ` Daniel Vetter
2015-08-17 7:39 ` Jani Nikula
2015-08-16 7:38 ` shuang.he
1 sibling, 1 reply; 4+ messages in thread
From: Daniel Vetter @ 2015-08-14 12:18 UTC (permalink / raw)
To: Chris Wilson; +Cc: intel-gfx, stable
On Fri, Aug 14, 2015 at 12:59:19PM +0100, Chris Wilson wrote:
> Everytime we use the logical context with execlists it becomes dirty (as
> the hardware will write the new register values afterwards, as well as
> the GPU state that will be used). We need to then flag the context as
> dirty everytime since after a swap-out/swap-in cycle the dirty flag will
> be cleared, and a further swap-out cycle will then loose the most recent
> GPU state.
>
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: stable@vger.kernel.org
Yay for reinventing active tracking I guess, legacy hw ctx has this
already. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
-Daniel
> ---
> drivers/gpu/drm/i915/intel_lrc.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
> index 138964afd187..41cfa6fa909d 100644
> --- a/drivers/gpu/drm/i915/intel_lrc.c
> +++ b/drivers/gpu/drm/i915/intel_lrc.c
> @@ -1013,6 +1013,8 @@ static int intel_lr_context_pin(struct drm_i915_gem_request *rq)
> ret = intel_pin_and_map_ringbuffer_obj(ring->dev, ringbuf);
> if (ret)
> goto unpin_ctx_obj;
> +
> + ctx_obj->dirty = true;
> }
>
> return ret;
> --
> 2.5.0
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] drm/i915: Flag the execlists context object as dirty after every use
2015-08-14 11:59 [PATCH] drm/i915: Flag the execlists context object as dirty after every use Chris Wilson
2015-08-14 12:18 ` [Intel-gfx] " Daniel Vetter
@ 2015-08-16 7:38 ` shuang.he
1 sibling, 0 replies; 4+ messages in thread
From: shuang.he @ 2015-08-16 7:38 UTC (permalink / raw)
To: shuang.he, julianx.dumez, christophe.sureau, lei.a.liu, intel-gfx, chris
Tested-By: Intel Graphics QA PRTS (Patch Regression Test System Contact: shuang.he@intel.com)
Task id: 7200
-------------------------------------Summary-------------------------------------
Platform Delta drm-intel-nightly Series Applied
ILK 302/302 302/302
SNB 315/315 315/315
IVB 336/336 336/336
BYT 283/283 283/283
HSW 378/378 378/378
-------------------------------------Detailed-------------------------------------
Platform Test drm-intel-nightly Series Applied
Note: You need to pay more attention to line start with '*'
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Intel-gfx] [PATCH] drm/i915: Flag the execlists context object as dirty after every use
2015-08-14 12:18 ` [Intel-gfx] " Daniel Vetter
@ 2015-08-17 7:39 ` Jani Nikula
0 siblings, 0 replies; 4+ messages in thread
From: Jani Nikula @ 2015-08-17 7:39 UTC (permalink / raw)
To: Daniel Vetter, Chris Wilson; +Cc: intel-gfx, stable
On Fri, 14 Aug 2015, Daniel Vetter <daniel@ffwll.ch> wrote:
> On Fri, Aug 14, 2015 at 12:59:19PM +0100, Chris Wilson wrote:
>> Everytime we use the logical context with execlists it becomes dirty (as
>> the hardware will write the new register values afterwards, as well as
>> the GPU state that will be used). We need to then flag the context as
>> dirty everytime since after a swap-out/swap-in cycle the dirty flag will
>> be cleared, and a further swap-out cycle will then loose the most recent
>> GPU state.
>>
>> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
>> Cc: stable@vger.kernel.org
>
> Yay for reinventing active tracking I guess, legacy hw ctx has this
> already. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Pushed to drm-intel-fixes, thanks for the patch and review.
BR,
Jani.
> -Daniel
>> ---
>> drivers/gpu/drm/i915/intel_lrc.c | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
>> index 138964afd187..41cfa6fa909d 100644
>> --- a/drivers/gpu/drm/i915/intel_lrc.c
>> +++ b/drivers/gpu/drm/i915/intel_lrc.c
>> @@ -1013,6 +1013,8 @@ static int intel_lr_context_pin(struct drm_i915_gem_request *rq)
>> ret = intel_pin_and_map_ringbuffer_obj(ring->dev, ringbuf);
>> if (ret)
>> goto unpin_ctx_obj;
>> +
>> + ctx_obj->dirty = true;
>> }
>>
>> return ret;
>> --
>> 2.5.0
>>
>> _______________________________________________
>> Intel-gfx mailing list
>> Intel-gfx@lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Jani Nikula, Intel Open Source Technology Center
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2015-08-17 7:38 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2015-08-14 11:59 [PATCH] drm/i915: Flag the execlists context object as dirty after every use Chris Wilson
2015-08-14 12:18 ` [Intel-gfx] " Daniel Vetter
2015-08-17 7:39 ` Jani Nikula
2015-08-16 7:38 ` shuang.he
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