diff mbox series

drm/i915: Use i915_gem_object_ggtt_pin_ww for reloc_iomap

Message ID 20220511115219.46507-1-maarten.lankhorst@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915: Use i915_gem_object_ggtt_pin_ww for reloc_iomap | expand

Commit Message

Maarten Lankhorst May 11, 2022, 11:52 a.m. UTC
Instead of its own path, use the common path when it doesn't result
in evicting any vma. This fixes the case where we don't wait for
binding.

Fixes: b5cfe6f7a6e1 ("drm/i915: Remove short-term pins from execbuf, v6.")
Cc: Matthew Auld <matthew.auld@intel.com>
Reported-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Comments

Matthew Auld May 11, 2022, 6:23 p.m. UTC | #1
On 11/05/2022 12:52, Maarten Lankhorst wrote:
> Instead of its own path, use the common path when it doesn't result
> in evicting any vma. This fixes the case where we don't wait for
> binding.
> 

https://gitlab.freedesktop.org/drm/intel/-/issues/5806

If I'm reading that correctly waiting for the bind doesn't seem to help?

> Fixes: b5cfe6f7a6e1 ("drm/i915: Remove short-term pins from execbuf, v6.")
> Cc: Matthew Auld <matthew.auld@intel.com>
> Reported-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
> Tested-by: Hans de Goede <hdegoede@redhat.com>
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> ---
>   drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 6 ++----
>   1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> index 498b458fd784..919d01082909 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> @@ -1262,14 +1262,12 @@ static void *reloc_iomap(struct i915_vma *batch,
>   		 * Only attempt to pin the batch buffer to ggtt if the current batch
>   		 * is not inside ggtt, or the batch buffer is not misplaced.
>   		 */
> -		if (!i915_is_ggtt(batch->vm)) {
> +		if (!i915_is_ggtt(batch->vm) ||
> +		    !i915_vma_misplaced(batch, 0, 0, PIN_MAPPABLE)) {
>   			vma = i915_gem_object_ggtt_pin_ww(obj, &eb->ww, NULL, 0, 0,
>   							  PIN_MAPPABLE |
>   							  PIN_NONBLOCK /* NOWARN */ |
>   							  PIN_NOEVICT);
> -		} else if (i915_vma_is_map_and_fenceable(batch)) {
> -			__i915_vma_pin(batch);
> -			vma = batch;
>   		}
>   
>   		if (vma == ERR_PTR(-EDEADLK))
Maarten Lankhorst May 11, 2022, 6:38 p.m. UTC | #2
Op 11-05-2022 om 20:23 schreef Matthew Auld:
> On 11/05/2022 12:52, Maarten Lankhorst wrote:
>> Instead of its own path, use the common path when it doesn't result
>> in evicting any vma. This fixes the case where we don't wait for
>> binding.
>>
>
> https://gitlab.freedesktop.org/drm/intel/-/issues/5806
>
> If I'm reading that correctly waiting for the bind doesn't seem to help?

I suspect the actual pinning there might do some stuff that we are not doing.

It was working before the change, and manually calling pin caused the failure, so I reverted it back to what was working before. It was specifically the manual pin code that was failing.

I can change the commit message if it helps.

~Maarten

>> Fixes: b5cfe6f7a6e1 ("drm/i915: Remove short-term pins from execbuf, v6.")
>> Cc: Matthew Auld <matthew.auld@intel.com>
>> Reported-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
>> Tested-by: Hans de Goede <hdegoede@redhat.com>
>> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
>> ---
>>   drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 6 ++----
>>   1 file changed, 2 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
>> index 498b458fd784..919d01082909 100644
>> --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
>> +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
>> @@ -1262,14 +1262,12 @@ static void *reloc_iomap(struct i915_vma *batch,
>>            * Only attempt to pin the batch buffer to ggtt if the current batch
>>            * is not inside ggtt, or the batch buffer is not misplaced.
>>            */
>> -        if (!i915_is_ggtt(batch->vm)) {
>> +        if (!i915_is_ggtt(batch->vm) ||
>> +            !i915_vma_misplaced(batch, 0, 0, PIN_MAPPABLE)) {
>>               vma = i915_gem_object_ggtt_pin_ww(obj, &eb->ww, NULL, 0, 0,
>>                                 PIN_MAPPABLE |
>>                                 PIN_NONBLOCK /* NOWARN */ |
>>                                 PIN_NOEVICT);
>> -        } else if (i915_vma_is_map_and_fenceable(batch)) {
>> -            __i915_vma_pin(batch);
>> -            vma = batch;
>>           }
>>             if (vma == ERR_PTR(-EDEADLK))
Matthew Auld May 12, 2022, 4:14 p.m. UTC | #3
On 11/05/2022 19:38, Maarten Lankhorst wrote:
> Op 11-05-2022 om 20:23 schreef Matthew Auld:
>> On 11/05/2022 12:52, Maarten Lankhorst wrote:
>>> Instead of its own path, use the common path when it doesn't result
>>> in evicting any vma. This fixes the case where we don't wait for
>>> binding.
>>>
>>
>> https://gitlab.freedesktop.org/drm/intel/-/issues/5806
>>
>> If I'm reading that correctly waiting for the bind doesn't seem to help?
> 
> I suspect the actual pinning there might do some stuff that we are not doing.
> 
> It was working before the change, and manually calling pin caused the failure, so I reverted it back to what was working before. It was specifically the manual pin code that was failing.
> 
> I can change the commit message if it helps.

Hmm strange. With the commit message updated,
Acked-by: Matthew Auld <matthew.auld@intel.com>

> 
> ~Maarten
> 
>>> Fixes: b5cfe6f7a6e1 ("drm/i915: Remove short-term pins from execbuf, v6.")
>>> Cc: Matthew Auld <matthew.auld@intel.com>
>>> Reported-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
>>> Tested-by: Hans de Goede <hdegoede@redhat.com>
>>> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
>>> ---
>>>    drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 6 ++----
>>>    1 file changed, 2 insertions(+), 4 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
>>> index 498b458fd784..919d01082909 100644
>>> --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
>>> +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
>>> @@ -1262,14 +1262,12 @@ static void *reloc_iomap(struct i915_vma *batch,
>>>             * Only attempt to pin the batch buffer to ggtt if the current batch
>>>             * is not inside ggtt, or the batch buffer is not misplaced.
>>>             */
>>> -        if (!i915_is_ggtt(batch->vm)) {
>>> +        if (!i915_is_ggtt(batch->vm) ||
>>> +            !i915_vma_misplaced(batch, 0, 0, PIN_MAPPABLE)) {
>>>                vma = i915_gem_object_ggtt_pin_ww(obj, &eb->ww, NULL, 0, 0,
>>>                                  PIN_MAPPABLE |
>>>                                  PIN_NONBLOCK /* NOWARN */ |
>>>                                  PIN_NOEVICT);
>>> -        } else if (i915_vma_is_map_and_fenceable(batch)) {
>>> -            __i915_vma_pin(batch);
>>> -            vma = batch;
>>>            }
>>>              if (vma == ERR_PTR(-EDEADLK))
> 
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 498b458fd784..919d01082909 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -1262,14 +1262,12 @@  static void *reloc_iomap(struct i915_vma *batch,
 		 * Only attempt to pin the batch buffer to ggtt if the current batch
 		 * is not inside ggtt, or the batch buffer is not misplaced.
 		 */
-		if (!i915_is_ggtt(batch->vm)) {
+		if (!i915_is_ggtt(batch->vm) ||
+		    !i915_vma_misplaced(batch, 0, 0, PIN_MAPPABLE)) {
 			vma = i915_gem_object_ggtt_pin_ww(obj, &eb->ww, NULL, 0, 0,
 							  PIN_MAPPABLE |
 							  PIN_NONBLOCK /* NOWARN */ |
 							  PIN_NOEVICT);
-		} else if (i915_vma_is_map_and_fenceable(batch)) {
-			__i915_vma_pin(batch);
-			vma = batch;
 		}
 
 		if (vma == ERR_PTR(-EDEADLK))