Re: [PATCH 12/20] drm/radeon: Introduce GEM object functions

From: Thomas Zimmermann <tzimmermann@suse.de>
To: "Christian König" <christian.koenig@amd.com>,
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Subject: Re: [PATCH 12/20] drm/radeon: Introduce GEM object functions
Date: Thu, 13 Aug 2020 12:41:51 +0200	[thread overview]
Message-ID: <5372b2ef-b7cf-f4e9-9199-6dee5bf6696f@suse.de> (raw)
In-Reply-To: <fb070238-b6ca-8e31-e559-51eda489915e@amd.com>

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Hi

Am 13.08.20 um 12:24 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 radeon.
>>
>> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
>> ---
>>   drivers/gpu/drm/radeon/radeon_drv.c    | 23 +----------------------
>>   drivers/gpu/drm/radeon/radeon_object.c | 26 ++++++++++++++++++++++++++
>>   2 files changed, 27 insertions(+), 22 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/radeon/radeon_drv.c
>> b/drivers/gpu/drm/radeon/radeon_drv.c
>> index 4cd30613fa1d..65061c949aee 100644
>> --- a/drivers/gpu/drm/radeon/radeon_drv.c
>> +++ b/drivers/gpu/drm/radeon/radeon_drv.c
>> @@ -124,13 +124,6 @@ void radeon_driver_irq_preinstall_kms(struct
>> drm_device *dev);
>>   int radeon_driver_irq_postinstall_kms(struct drm_device *dev);
>>   void radeon_driver_irq_uninstall_kms(struct drm_device *dev);
>>   irqreturn_t radeon_driver_irq_handler_kms(int irq, void *arg);
>> -void radeon_gem_object_free(struct drm_gem_object *obj);
>> -int radeon_gem_object_open(struct drm_gem_object *obj,
>> -                struct drm_file *file_priv);
>> -void radeon_gem_object_close(struct drm_gem_object *obj,
>> -                struct drm_file *file_priv);
>> -struct dma_buf *radeon_gem_prime_export(struct drm_gem_object *gobj,
>> -                    int flags);
>>   extern int radeon_get_crtc_scanoutpos(struct drm_device *dev,
>> unsigned int crtc,
>>                         unsigned int flags, int *vpos, int *hpos,
>>                         ktime_t *stime, ktime_t *etime,
>> @@ -145,14 +138,9 @@ int radeon_mode_dumb_mmap(struct drm_file *filp,
>>   int radeon_mode_dumb_create(struct drm_file *file_priv,
>>                   struct drm_device *dev,
>>                   struct drm_mode_create_dumb *args);
>> -struct sg_table *radeon_gem_prime_get_sg_table(struct drm_gem_object
>> *obj);
>>   struct drm_gem_object *radeon_gem_prime_import_sg_table(struct
>> drm_device *dev,
>>                               struct dma_buf_attachment *,
>>                               struct sg_table *sg);
>> -int radeon_gem_prime_pin(struct drm_gem_object *obj);
>> -void radeon_gem_prime_unpin(struct drm_gem_object *obj);
>> -void *radeon_gem_prime_vmap(struct drm_gem_object *obj);
>> -void radeon_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
>>     /* atpx handler */
>>   #if defined(CONFIG_VGA_SWITCHEROO)
>> @@ -550,7 +538,7 @@ long radeon_drm_ioctl(struct file *filp,
>>       }
>>         ret = drm_ioctl(filp, cmd, arg);
>> -   
>> +
>>       pm_runtime_mark_last_busy(dev->dev);
>>       pm_runtime_put_autosuspend(dev->dev);
>>       return ret;
>> @@ -609,22 +597,13 @@ static struct drm_driver kms_driver = {
>>       .irq_uninstall = radeon_driver_irq_uninstall_kms,
>>       .irq_handler = radeon_driver_irq_handler_kms,
>>       .ioctls = radeon_ioctls_kms,
>> -    .gem_free_object_unlocked = radeon_gem_object_free,
>> -    .gem_open_object = radeon_gem_object_open,
>> -    .gem_close_object = radeon_gem_object_close,
>>       .dumb_create = radeon_mode_dumb_create,
>>       .dumb_map_offset = radeon_mode_dumb_mmap,
>>       .fops = &radeon_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 = radeon_gem_prime_export,
>> -    .gem_prime_pin = radeon_gem_prime_pin,
>> -    .gem_prime_unpin = radeon_gem_prime_unpin,
>> -    .gem_prime_get_sg_table = radeon_gem_prime_get_sg_table,
>>       .gem_prime_import_sg_table = radeon_gem_prime_import_sg_table,
>> -    .gem_prime_vmap = radeon_gem_prime_vmap,
>> -    .gem_prime_vunmap = radeon_gem_prime_vunmap,
>>         .name = DRIVER_NAME,
>>       .desc = DRIVER_DESC,
>> diff --git a/drivers/gpu/drm/radeon/radeon_object.c
>> b/drivers/gpu/drm/radeon/radeon_object.c
>> index bb7582afd803..882390e15dfe 100644
>> --- a/drivers/gpu/drm/radeon/radeon_object.c
>> +++ b/drivers/gpu/drm/radeon/radeon_object.c
>> @@ -45,6 +45,19 @@ int radeon_ttm_init(struct radeon_device *rdev);
>>   void radeon_ttm_fini(struct radeon_device *rdev);
>>   static void radeon_bo_clear_surface_reg(struct radeon_bo *bo);
>>   +void radeon_gem_object_free(struct drm_gem_object *obj);
>> +int radeon_gem_object_open(struct drm_gem_object *obj,
>> +                struct drm_file *file_priv);
>> +void radeon_gem_object_close(struct drm_gem_object *obj,
>> +                struct drm_file *file_priv);
>> +struct dma_buf *radeon_gem_prime_export(struct drm_gem_object *gobj,
>> +                    int flags);
>> +struct sg_table *radeon_gem_prime_get_sg_table(struct drm_gem_object
>> *obj);
>> +int radeon_gem_prime_pin(struct drm_gem_object *obj);
>> +void radeon_gem_prime_unpin(struct drm_gem_object *obj);
>> +void *radeon_gem_prime_vmap(struct drm_gem_object *obj);
>> +void radeon_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
>> +
>>   /*
>>    * To exclude mutual BO access we rely on bo_reserve exclusion, as all
>>    * function are calling it.
>> @@ -180,6 +193,18 @@ void radeon_ttm_placement_from_domain(struct
>> radeon_bo *rbo, u32 domain)
>>       }
>>   }
>>   +static const struct drm_gem_object_funcs radeon_gem_object_funcs = {
>> +    .free = radeon_gem_object_free,
>> +    .open = radeon_gem_object_open,
>> +    .close = radeon_gem_object_close,
>> +    .export = radeon_gem_prime_export,
>> +    .pin = radeon_gem_prime_pin,
>> +    .unpin = radeon_gem_prime_unpin,
>> +    .get_sg_table = radeon_gem_prime_get_sg_table,
>> +    .vmap = radeon_gem_prime_vmap,
>> +    .vunmap = radeon_gem_prime_vunmap,
>> +};
>> +
> 
> Same comment as for amdgpu, please put that into radeon_gem.c instead.

There's no good header file to put the declarations, right? I'm asking
because checkpatch warns about declarations in the source files.

Best regards
Thomas

> 
> Christian.
> 
>>   int radeon_bo_create(struct radeon_device *rdev,
>>                unsigned long size, int byte_align, bool kernel,
>>                u32 domain, u32 flags, struct sg_table *sg,
>> @@ -209,6 +234,7 @@ int radeon_bo_create(struct radeon_device *rdev,
>>       bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL);
>>       if (bo == NULL)
>>           return -ENOMEM;
>> +    bo->tbo.base.funcs = &radeon_gem_object_funcs;
>>       drm_gem_private_object_init(rdev->ddev, &bo->tbo.base, size);
>>       bo->rdev = rdev;
>>       bo->surface_reg = -1;
> 

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

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