diff mbox series

[v2,2/2] drm/ttm: check with temporary GTT memory in BO validation

Message ID 20210531113054.2477-1-Lang.Yu@amd.com (mailing list archive)
State New, archived
Headers show
Series None | expand

Commit Message

Lang Yu May 31, 2021, 11:30 a.m. UTC
If a BO's backing store is temporary GTT memory, we should
move it in BO validation.

v2: move the check outside of for loop

Signed-off-by: Lang Yu <Lang.Yu@amd.com>
---
 drivers/gpu/drm/ttm/ttm_bo.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

Christian König May 31, 2021, 11:54 a.m. UTC | #1
Am 31.05.21 um 13:30 schrieb Lang Yu:
> If a BO's backing store is temporary GTT memory, we should
> move it in BO validation.
>
> v2: move the check outside of for loop
>
> Signed-off-by: Lang Yu <Lang.Yu@amd.com>

In general those patches now have my rb, but let me add some more 
documentation to them to better explain why we do this.

Thanks,
Christian.

> ---
>   drivers/gpu/drm/ttm/ttm_bo.c | 3 +++
>   1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
> index c32a37d0a460..1802fc77cfcb 100644
> --- a/drivers/gpu/drm/ttm/ttm_bo.c
> +++ b/drivers/gpu/drm/ttm/ttm_bo.c
> @@ -938,6 +938,9 @@ static bool ttm_bo_places_compat(const struct ttm_place *places,
>   {
>   	unsigned i;
>   
> +	if (mem->placement & TTM_PL_FLAG_TEMPORARY)
> +		return false;
> +
>   	for (i = 0; i < num_placement; i++) {
>   		const struct ttm_place *heap = &places[i];
>
Lang Yu May 31, 2021, 1:08 p.m. UTC | #2
[AMD Official Use Only]



>-----Original Message-----
>From: Koenig, Christian <Christian.Koenig@amd.com>
>Sent: Monday, May 31, 2021 7:55 PM
>To: Yu, Lang <Lang.Yu@amd.com>; amd-gfx@lists.freedesktop.org; dri-
>devel@lists.freedesktop.org
>Cc: Thomas Hellströ <thomas_os@shipmail.org>; Olsak, Marek
><Marek.Olsak@amd.com>; Huang, Ray <Ray.Huang@amd.com>; Deucher,
>Alexander <Alexander.Deucher@amd.com>
>Subject: Re: [PATCH v2 2/2] drm/ttm: check with temporary GTT memory in BO
>validation
>
>Am 31.05.21 um 13:30 schrieb Lang Yu:
>> If a BO's backing store is temporary GTT memory, we should move it in
>> BO validation.
>>
>> v2: move the check outside of for loop
>>
>> Signed-off-by: Lang Yu <Lang.Yu@amd.com>
>
>In general those patches now have my rb, but let me add some more
>documentation to them to better explain why we do this.
>
[Yu, Lang] 
Thanks for your review and advice. Happy to see that!

Regards,
Lang

>Thanks,
>Christian.
>
>> ---
>>   drivers/gpu/drm/ttm/ttm_bo.c | 3 +++
>>   1 file changed, 3 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/ttm/ttm_bo.c
>> b/drivers/gpu/drm/ttm/ttm_bo.c index c32a37d0a460..1802fc77cfcb 100644
>> --- a/drivers/gpu/drm/ttm/ttm_bo.c
>> +++ b/drivers/gpu/drm/ttm/ttm_bo.c
>> @@ -938,6 +938,9 @@ static bool ttm_bo_places_compat(const struct
>ttm_place *places,
>>   {
>>   	unsigned i;
>>
>> +	if (mem->placement & TTM_PL_FLAG_TEMPORARY)
>> +		return false;
>> +
>>   	for (i = 0; i < num_placement; i++) {
>>   		const struct ttm_place *heap = &places[i];
>>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index c32a37d0a460..1802fc77cfcb 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -938,6 +938,9 @@  static bool ttm_bo_places_compat(const struct ttm_place *places,
 {
 	unsigned i;
 
+	if (mem->placement & TTM_PL_FLAG_TEMPORARY)
+		return false;
+
 	for (i = 0; i < num_placement; i++) {
 		const struct ttm_place *heap = &places[i];