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[PATCH 01/20] drm/amdgpu: Introduce GEM object functions
tzimmermann at suse
Aug 13, 2020, 1:36 AM
Post #1 of 4 (78 views)
Permalink
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in amdgpu. The only exception is gem_prime_mmap,
which is non-trivial to convert.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 6 ------
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 12 ++++++++++++
2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 81a79760ca61..51525b8774c9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1468,19 +1468,13 @@ static struct drm_driver kms_driver = {
.lastclose = amdgpu_driver_lastclose_kms,
.irq_handler = amdgpu_irq_handler,
.ioctls = amdgpu_ioctls_kms,
- .gem_free_object_unlocked = amdgpu_gem_object_free,
- .gem_open_object = amdgpu_gem_object_open,
- .gem_close_object = amdgpu_gem_object_close,
.dumb_create = amdgpu_mode_dumb_create,
.dumb_map_offset = amdgpu_mode_dumb_mmap,
.fops = &amdgpu_driver_kms_fops,

.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
- .gem_prime_export = amdgpu_gem_prime_export,
.gem_prime_import = amdgpu_gem_prime_import,
- .gem_prime_vmap = amdgpu_gem_prime_vmap,
- .gem_prime_vunmap = amdgpu_gem_prime_vunmap,
.gem_prime_mmap = amdgpu_gem_prime_mmap,

.name = DRIVER_NAME,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 43f4966331dd..ca2b79f94e99 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -36,6 +36,7 @@
#include <drm/amdgpu_drm.h>
#include <drm/drm_cache.h>
#include "amdgpu.h"
+#include "amdgpu_dma_buf.h"
#include "amdgpu_trace.h"
#include "amdgpu_amdkfd.h"

@@ -510,6 +511,15 @@ bool amdgpu_bo_support_uswc(u64 bo_flags)
#endif
}

+static const struct drm_gem_object_funcs amdgpu_gem_object_funcs = {
+ .free = amdgpu_gem_object_free,
+ .open = amdgpu_gem_object_open,
+ .close = amdgpu_gem_object_close,
+ .export = amdgpu_gem_prime_export,
+ .vmap = amdgpu_gem_prime_vmap,
+ .vunmap = amdgpu_gem_prime_vunmap,
+};
+
static int amdgpu_bo_do_create(struct amdgpu_device *adev,
struct amdgpu_bo_param *bp,
struct amdgpu_bo **bo_ptr)
@@ -552,6 +562,8 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev,
bo = kzalloc(sizeof(struct amdgpu_bo), GFP_KERNEL);
if (bo == NULL)
return -ENOMEM;
+
+ bo->tbo.base.funcs = &amdgpu_gem_object_funcs;
drm_gem_private_object_init(adev->ddev, &bo->tbo.base, size);
INIT_LIST_HEAD(&bo->shadow_list);
bo->vm_bo = NULL;
--
2.28.0
Re: [PATCH 01/20] drm/amdgpu: Introduce GEM object functions [ In reply to ]
christian.koenig at amd
Aug 13, 2020, 3:22 AM
Post #2 of 4 (78 views)
Permalink
Am 13.08.20 um 10:36 schrieb Thomas Zimmermann:
> GEM object functions deprecate several similar callback interfaces in
> struct drm_driver. This patch replaces the per-driver callbacks with
> per-instance callbacks in amdgpu. The only exception is gem_prime_mmap,
> which is non-trivial to convert.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 6 ------
> drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 12 ++++++++++++
> 2 files changed, 12 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> index 81a79760ca61..51525b8774c9 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> @@ -1468,19 +1468,13 @@ static struct drm_driver kms_driver = {
> .lastclose = amdgpu_driver_lastclose_kms,
> .irq_handler = amdgpu_irq_handler,
> .ioctls = amdgpu_ioctls_kms,
> - .gem_free_object_unlocked = amdgpu_gem_object_free,
> - .gem_open_object = amdgpu_gem_object_open,
> - .gem_close_object = amdgpu_gem_object_close,
> .dumb_create = amdgpu_mode_dumb_create,
> .dumb_map_offset = amdgpu_mode_dumb_mmap,
> .fops = &amdgpu_driver_kms_fops,
>
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> - .gem_prime_export = amdgpu_gem_prime_export,
> .gem_prime_import = amdgpu_gem_prime_import,
> - .gem_prime_vmap = amdgpu_gem_prime_vmap,
> - .gem_prime_vunmap = amdgpu_gem_prime_vunmap,
> .gem_prime_mmap = amdgpu_gem_prime_mmap,
>
> .name = DRIVER_NAME,
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> index 43f4966331dd..ca2b79f94e99 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> @@ -36,6 +36,7 @@
> #include <drm/amdgpu_drm.h>
> #include <drm/drm_cache.h>
> #include "amdgpu.h"
> +#include "amdgpu_dma_buf.h"
> #include "amdgpu_trace.h"
> #include "amdgpu_amdkfd.h"
>
> @@ -510,6 +511,15 @@ bool amdgpu_bo_support_uswc(u64 bo_flags)
> #endif
> }
>
> +static const struct drm_gem_object_funcs amdgpu_gem_object_funcs = {
> + .free = amdgpu_gem_object_free,
> + .open = amdgpu_gem_object_open,
> + .close = amdgpu_gem_object_close,
> + .export = amdgpu_gem_prime_export,
> + .vmap = amdgpu_gem_prime_vmap,
> + .vunmap = amdgpu_gem_prime_vunmap,
> +};
> +

Wrong file, this belongs into amdgpu_gem.c

> static int amdgpu_bo_do_create(struct amdgpu_device *adev,
> struct amdgpu_bo_param *bp,
> struct amdgpu_bo **bo_ptr)
> @@ -552,6 +562,8 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev,
> bo = kzalloc(sizeof(struct amdgpu_bo), GFP_KERNEL);
> if (bo == NULL)
> return -ENOMEM;
> +
> + bo->tbo.base.funcs = &amdgpu_gem_object_funcs;

And this should probably go into amdgpu_gem_object_create().

Apart from that looks like a good idea to me.

Christian.

> drm_gem_private_object_init(adev->ddev, &bo->tbo.base, size);
> INIT_LIST_HEAD(&bo->shadow_list);
> bo->vm_bo = NULL;
Re: [PATCH 01/20] drm/amdgpu: Introduce GEM object functions [ In reply to ]
tzimmermann at suse
Sep 14, 2020, 8:05 AM
Post #3 of 4 (75 views)
Permalink
Hi

Am 13.08.20 um 12:22 schrieb Christian König:
> Am 13.08.20 um 10:36 schrieb Thomas Zimmermann:
>> GEM object functions deprecate several similar callback interfaces in
>> struct drm_driver. This patch replaces the per-driver callbacks with
>> per-instance callbacks in amdgpu. The only exception is gem_prime_mmap,
>> which is non-trivial to convert.
>>
>> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
>> ---
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c    |  6 ------
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 12 ++++++++++++
>>   2 files changed, 12 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
>> index 81a79760ca61..51525b8774c9 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
>> @@ -1468,19 +1468,13 @@ static struct drm_driver kms_driver = {
>>       .lastclose = amdgpu_driver_lastclose_kms,
>>       .irq_handler = amdgpu_irq_handler,
>>       .ioctls = amdgpu_ioctls_kms,
>> -    .gem_free_object_unlocked = amdgpu_gem_object_free,
>> -    .gem_open_object = amdgpu_gem_object_open,
>> -    .gem_close_object = amdgpu_gem_object_close,
>>       .dumb_create = amdgpu_mode_dumb_create,
>>       .dumb_map_offset = amdgpu_mode_dumb_mmap,
>>       .fops = &amdgpu_driver_kms_fops,
>>         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
>>       .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
>> -    .gem_prime_export = amdgpu_gem_prime_export,
>>       .gem_prime_import = amdgpu_gem_prime_import,
>> -    .gem_prime_vmap = amdgpu_gem_prime_vmap,
>> -    .gem_prime_vunmap = amdgpu_gem_prime_vunmap,
>>       .gem_prime_mmap = amdgpu_gem_prime_mmap,
>>         .name = DRIVER_NAME,
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>> index 43f4966331dd..ca2b79f94e99 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>> @@ -36,6 +36,7 @@
>>   #include <drm/amdgpu_drm.h>
>>   #include <drm/drm_cache.h>
>>   #include "amdgpu.h"
>> +#include "amdgpu_dma_buf.h"
>>   #include "amdgpu_trace.h"
>>   #include "amdgpu_amdkfd.h"
>>   @@ -510,6 +511,15 @@ bool amdgpu_bo_support_uswc(u64 bo_flags)
>>   #endif
>>   }
>>   +static const struct drm_gem_object_funcs amdgpu_gem_object_funcs = {
>> +    .free = amdgpu_gem_object_free,
>> +    .open = amdgpu_gem_object_open,
>> +    .close = amdgpu_gem_object_close,
>> +    .export = amdgpu_gem_prime_export,
>> +    .vmap = amdgpu_gem_prime_vmap,
>> +    .vunmap = amdgpu_gem_prime_vunmap,
>> +};
>> +
>
> Wrong file, this belongs into amdgpu_gem.c
>
>>   static int amdgpu_bo_do_create(struct amdgpu_device *adev,
>>                      struct amdgpu_bo_param *bp,
>>                      struct amdgpu_bo **bo_ptr)
>> @@ -552,6 +562,8 @@ static int amdgpu_bo_do_create(struct
>> amdgpu_device *adev,
>>       bo = kzalloc(sizeof(struct amdgpu_bo), GFP_KERNEL);
>>       if (bo == NULL)
>>           return -ENOMEM;
>> +
>> +    bo->tbo.base.funcs = &amdgpu_gem_object_funcs;
>
> And this should probably go into amdgpu_gem_object_create().

I'm trying to understand what amdgpu does. What about all the places
where amdgpu calls amdgpu_bo_create() internally? Wouldn't these miss
the free callback for the GEM object?

Best regards
Thomas

>
> Apart from that looks like a good idea to me.
>
> Christian.
>
>>       drm_gem_private_object_init(adev->ddev, &bo->tbo.base, size);
>>       INIT_LIST_HEAD(&bo->shadow_list);
>>       bo->vm_bo = NULL;
>

--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

Attached Files:

Re: [PATCH 01/20] drm/amdgpu: Introduce GEM object functions [ In reply to ]
ckoenig.leichtzumerken at gmail
Sep 14, 2020, 10:51 AM
Post #4 of 4 (75 views)
Permalink
Am 14.09.20 um 17:05 schrieb Thomas Zimmermann:
> Hi
>
> Am 13.08.20 um 12:22 schrieb Christian König:
>> Am 13.08.20 um 10:36 schrieb Thomas Zimmermann:
>>> GEM object functions deprecate several similar callback interfaces in
>>> struct drm_driver. This patch replaces the per-driver callbacks with
>>> per-instance callbacks in amdgpu. The only exception is gem_prime_mmap,
>>> which is non-trivial to convert.
>>>
>>> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
>>> ---
>>>   drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c    |  6 ------
>>>   drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 12 ++++++++++++
>>>   2 files changed, 12 insertions(+), 6 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
>>> index 81a79760ca61..51525b8774c9 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
>>> @@ -1468,19 +1468,13 @@ static struct drm_driver kms_driver = {
>>>       .lastclose = amdgpu_driver_lastclose_kms,
>>>       .irq_handler = amdgpu_irq_handler,
>>>       .ioctls = amdgpu_ioctls_kms,
>>> -    .gem_free_object_unlocked = amdgpu_gem_object_free,
>>> -    .gem_open_object = amdgpu_gem_object_open,
>>> -    .gem_close_object = amdgpu_gem_object_close,
>>>       .dumb_create = amdgpu_mode_dumb_create,
>>>       .dumb_map_offset = amdgpu_mode_dumb_mmap,
>>>       .fops = &amdgpu_driver_kms_fops,
>>>         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
>>>       .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
>>> -    .gem_prime_export = amdgpu_gem_prime_export,
>>>       .gem_prime_import = amdgpu_gem_prime_import,
>>> -    .gem_prime_vmap = amdgpu_gem_prime_vmap,
>>> -    .gem_prime_vunmap = amdgpu_gem_prime_vunmap,
>>>       .gem_prime_mmap = amdgpu_gem_prime_mmap,
>>>         .name = DRIVER_NAME,
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>>> index 43f4966331dd..ca2b79f94e99 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>>> @@ -36,6 +36,7 @@
>>>   #include <drm/amdgpu_drm.h>
>>>   #include <drm/drm_cache.h>
>>>   #include "amdgpu.h"
>>> +#include "amdgpu_dma_buf.h"
>>>   #include "amdgpu_trace.h"
>>>   #include "amdgpu_amdkfd.h"
>>>   @@ -510,6 +511,15 @@ bool amdgpu_bo_support_uswc(u64 bo_flags)
>>>   #endif
>>>   }
>>>   +static const struct drm_gem_object_funcs amdgpu_gem_object_funcs = {
>>> +    .free = amdgpu_gem_object_free,
>>> +    .open = amdgpu_gem_object_open,
>>> +    .close = amdgpu_gem_object_close,
>>> +    .export = amdgpu_gem_prime_export,
>>> +    .vmap = amdgpu_gem_prime_vmap,
>>> +    .vunmap = amdgpu_gem_prime_vunmap,
>>> +};
>>> +
>> Wrong file, this belongs into amdgpu_gem.c
>>
>>>   static int amdgpu_bo_do_create(struct amdgpu_device *adev,
>>>                      struct amdgpu_bo_param *bp,
>>>                      struct amdgpu_bo **bo_ptr)
>>> @@ -552,6 +562,8 @@ static int amdgpu_bo_do_create(struct
>>> amdgpu_device *adev,
>>>       bo = kzalloc(sizeof(struct amdgpu_bo), GFP_KERNEL);
>>>       if (bo == NULL)
>>>           return -ENOMEM;
>>> +
>>> +    bo->tbo.base.funcs = &amdgpu_gem_object_funcs;
>> And this should probably go into amdgpu_gem_object_create().
> I'm trying to understand what amdgpu does. What about all the places
> where amdgpu calls amdgpu_bo_create() internally? Wouldn't these miss
> the free callback for the GEM object?

Those shouldn't have a GEM object in the first place.

Or otherwise we would have a reference counting issue.

Regards,
Christian.

>
> Best regards
> Thomas
>
>> Apart from that looks like a good idea to me.
>>
>> Christian.
>>
>>>       drm_gem_private_object_init(adev->ddev, &bo->tbo.base, size);
>>>       INIT_LIST_HEAD(&bo->shadow_list);
>>>       bo->vm_bo = NULL;
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx

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