diff mbox series

[01/11] drm/ast: Use drm_aperture_remove_conflicting_pci_framebuffers

Message ID 20230111154112.90575-1-daniel.vetter@ffwll.ch
State New
Headers
Series [01/11] drm/ast: Use drm_aperture_remove_conflicting_pci_framebuffers |

Commit Message

Daniel Vetter Jan. 11, 2023, 3:41 p.m. UTC 
  It's just open coded and matches.

Note that Thomas said that his version apparently failed for some
reason, but hey maybe we should try again.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
---
 drivers/gpu/drm/ast/ast_drv.c | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

Comments

Thomas Zimmermann Jan. 11, 2023, 3:48 p.m. UTC | #1 
Hi

Am 11.01.23 um 16:41 schrieb Daniel Vetter:
> It's just open coded and matches.
> 
> Note that Thomas said that his version apparently failed for some
> reason, but hey maybe we should try again.

I'll give this patch a test tomorrow.

Best regards
Thomas

> 
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Javier Martinez Canillas <javierm@redhat.com>
> Cc: Helge Deller <deller@gmx.de>
> Cc: linux-fbdev@vger.kernel.org
> ---
>   drivers/gpu/drm/ast/ast_drv.c | 16 +---------------
>   1 file changed, 1 insertion(+), 15 deletions(-)
> 
> diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
> index 420fc75c240e..3ac24a780f50 100644
> --- a/drivers/gpu/drm/ast/ast_drv.c
> +++ b/drivers/gpu/drm/ast/ast_drv.c
> @@ -90,27 +90,13 @@ static const struct pci_device_id ast_pciidlist[] = {
>   
>   MODULE_DEVICE_TABLE(pci, ast_pciidlist);
>   
> -static int ast_remove_conflicting_framebuffers(struct pci_dev *pdev)
> -{
> -	bool primary = false;
> -	resource_size_t base, size;
> -
> -	base = pci_resource_start(pdev, 0);
> -	size = pci_resource_len(pdev, 0);
> -#ifdef CONFIG_X86
> -	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
> -#endif
> -
> -	return drm_aperture_remove_conflicting_framebuffers(base, size, primary, &ast_driver);
> -}
> -
>   static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>   {
>   	struct ast_private *ast;
>   	struct drm_device *dev;
>   	int ret;
>   
> -	ret = ast_remove_conflicting_framebuffers(pdev);
> +	ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &ast_driver);
>   	if (ret)
>   		return ret;
>   

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev
Daniel Vetter Jan. 11, 2023, 5:02 p.m. UTC | #2 
On Wed, Jan 11, 2023 at 04:48:39PM +0100, Thomas Zimmermann wrote:
> Hi
> 
> Am 11.01.23 um 16:41 schrieb Daniel Vetter:
> > It's just open coded and matches.
> > 
> > Note that Thomas said that his version apparently failed for some
> > reason, but hey maybe we should try again.
> 
> I'll give this patch a test tomorrow.

Thanks a lot!
-Daniel

> 
> Best regards
> Thomas
> 
> > 
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Dave Airlie <airlied@redhat.com>
> > Cc: Thomas Zimmermann <tzimmermann@suse.de>
> > Cc: Javier Martinez Canillas <javierm@redhat.com>
> > Cc: Helge Deller <deller@gmx.de>
> > Cc: linux-fbdev@vger.kernel.org
> > ---
> >   drivers/gpu/drm/ast/ast_drv.c | 16 +---------------
> >   1 file changed, 1 insertion(+), 15 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
> > index 420fc75c240e..3ac24a780f50 100644
> > --- a/drivers/gpu/drm/ast/ast_drv.c
> > +++ b/drivers/gpu/drm/ast/ast_drv.c
> > @@ -90,27 +90,13 @@ static const struct pci_device_id ast_pciidlist[] = {
> >   MODULE_DEVICE_TABLE(pci, ast_pciidlist);
> > -static int ast_remove_conflicting_framebuffers(struct pci_dev *pdev)
> > -{
> > -	bool primary = false;
> > -	resource_size_t base, size;
> > -
> > -	base = pci_resource_start(pdev, 0);
> > -	size = pci_resource_len(pdev, 0);
> > -#ifdef CONFIG_X86
> > -	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
> > -#endif
> > -
> > -	return drm_aperture_remove_conflicting_framebuffers(base, size, primary, &ast_driver);
> > -}
> > -
> >   static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> >   {
> >   	struct ast_private *ast;
> >   	struct drm_device *dev;
> >   	int ret;
> > -	ret = ast_remove_conflicting_framebuffers(pdev);
> > +	ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &ast_driver);
> >   	if (ret)
> >   		return ret;
> 
> -- 
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Ivo Totev
Thomas Zimmermann Jan. 12, 2023, 9:41 a.m. UTC | #3 
Am 11.01.23 um 16:41 schrieb Daniel Vetter:
> It's just open coded and matches.
> 
> Note that Thomas said that his version apparently failed for some
> reason, but hey maybe we should try again.

It apparently worked this time. Tested on an AST2100 chip.

> 
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Javier Martinez Canillas <javierm@redhat.com>
> Cc: Helge Deller <deller@gmx.de>
> Cc: linux-fbdev@vger.kernel.org

Tested-by: Thomas Zimmmermann <tzimmermann@suse.de>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>

> ---
>   drivers/gpu/drm/ast/ast_drv.c | 16 +---------------
>   1 file changed, 1 insertion(+), 15 deletions(-)
> 
> diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
> index 420fc75c240e..3ac24a780f50 100644
> --- a/drivers/gpu/drm/ast/ast_drv.c
> +++ b/drivers/gpu/drm/ast/ast_drv.c
> @@ -90,27 +90,13 @@ static const struct pci_device_id ast_pciidlist[] = {
>   
>   MODULE_DEVICE_TABLE(pci, ast_pciidlist);
>   
> -static int ast_remove_conflicting_framebuffers(struct pci_dev *pdev)
> -{
> -	bool primary = false;
> -	resource_size_t base, size;
> -
> -	base = pci_resource_start(pdev, 0);
> -	size = pci_resource_len(pdev, 0);
> -#ifdef CONFIG_X86
> -	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
> -#endif
> -
> -	return drm_aperture_remove_conflicting_framebuffers(base, size, primary, &ast_driver);
> -}
> -
>   static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>   {
>   	struct ast_private *ast;
>   	struct drm_device *dev;
>   	int ret;
>   
> -	ret = ast_remove_conflicting_framebuffers(pdev);
> +	ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &ast_driver);
>   	if (ret)
>   		return ret;
>   

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev
Thomas Zimmermann April 4, 2023, 2:45 p.m. UTC | #4 
Hi,

FYI I have merged patches 1, 6 and 7 of this patchset. They look fine 
and are worthwhile fixes on their own.

Best regards
Thomas

Am 11.01.23 um 16:41 schrieb Daniel Vetter:
> It's just open coded and matches.
> 
> Note that Thomas said that his version apparently failed for some
> reason, but hey maybe we should try again.
> 
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Javier Martinez Canillas <javierm@redhat.com>
> Cc: Helge Deller <deller@gmx.de>
> Cc: linux-fbdev@vger.kernel.org
> ---
>   drivers/gpu/drm/ast/ast_drv.c | 16 +---------------
>   1 file changed, 1 insertion(+), 15 deletions(-)
> 
> diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
> index 420fc75c240e..3ac24a780f50 100644
> --- a/drivers/gpu/drm/ast/ast_drv.c
> +++ b/drivers/gpu/drm/ast/ast_drv.c
> @@ -90,27 +90,13 @@ static const struct pci_device_id ast_pciidlist[] = {
>   
>   MODULE_DEVICE_TABLE(pci, ast_pciidlist);
>   
> -static int ast_remove_conflicting_framebuffers(struct pci_dev *pdev)
> -{
> -	bool primary = false;
> -	resource_size_t base, size;
> -
> -	base = pci_resource_start(pdev, 0);
> -	size = pci_resource_len(pdev, 0);
> -#ifdef CONFIG_X86
> -	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
> -#endif
> -
> -	return drm_aperture_remove_conflicting_framebuffers(base, size, primary, &ast_driver);
> -}
> -
>   static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>   {
>   	struct ast_private *ast;
>   	struct drm_device *dev;
>   	int ret;
>   
> -	ret = ast_remove_conflicting_framebuffers(pdev);
> +	ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &ast_driver);
>   	if (ret)
>   		return ret;
>   

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev
Jammy Huang April 18, 2023, 12:53 a.m. UTC | #5 
Hi Thomas,

The Intel(x86) CPUs have a separate address space for "IO", but the ARM 
architecture only has "memory", so all IO devices are accessed as if 
they were memory. Which means ARM does not support isolated IO. Here is 
a related discussion on ARM's forum.

https://community.arm.com/support-forums/f/architectures-and-processors-forum/52046/how-to-read-write-an-i-o-port-in-aarch64

Thus, we adapt MMIO only after this patch.


On 2023/4/4 下午 10:45, Thomas Zimmermann wrote:
> Hi,
>
> FYI I have merged patches 1, 6 and 7 of this patchset. They look fine 
> and are worthwhile fixes on their own.
>
> Best regards
> Thomas
>
> Am 11.01.23 um 16:41 schrieb Daniel Vetter:
>> It's just open coded and matches.
>>
>> Note that Thomas said that his version apparently failed for some
>> reason, but hey maybe we should try again.
>>
>> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
>> Cc: Dave Airlie <airlied@redhat.com>
>> Cc: Thomas Zimmermann <tzimmermann@suse.de>
>> Cc: Javier Martinez Canillas <javierm@redhat.com>
>> Cc: Helge Deller <deller@gmx.de>
>> Cc: linux-fbdev@vger.kernel.org
>> ---
>>   drivers/gpu/drm/ast/ast_drv.c | 16 +---------------
>>   1 file changed, 1 insertion(+), 15 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/ast/ast_drv.c 
>> b/drivers/gpu/drm/ast/ast_drv.c
>> index 420fc75c240e..3ac24a780f50 100644
>> --- a/drivers/gpu/drm/ast/ast_drv.c
>> +++ b/drivers/gpu/drm/ast/ast_drv.c
>> @@ -90,27 +90,13 @@ static const struct pci_device_id ast_pciidlist[] 
>> = {
>>     MODULE_DEVICE_TABLE(pci, ast_pciidlist);
>>   -static int ast_remove_conflicting_framebuffers(struct pci_dev *pdev)
>> -{
>> -    bool primary = false;
>> -    resource_size_t base, size;
>> -
>> -    base = pci_resource_start(pdev, 0);
>> -    size = pci_resource_len(pdev, 0);
>> -#ifdef CONFIG_X86
>> -    primary = pdev->resource[PCI_ROM_RESOURCE].flags & 
>> IORESOURCE_ROM_SHADOW;
>> -#endif
>> -
>> -    return drm_aperture_remove_conflicting_framebuffers(base, size, 
>> primary, &ast_driver);
>> -}
>> -
>>   static int ast_pci_probe(struct pci_dev *pdev, const struct 
>> pci_device_id *ent)
>>   {
>>       struct ast_private *ast;
>>       struct drm_device *dev;
>>       int ret;
>>   -    ret = ast_remove_conflicting_framebuffers(pdev);
>> +    ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, 
>> &ast_driver);
>>       if (ret)
>>           return ret;
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
index 420fc75c240e..3ac24a780f50 100644
--- a/drivers/gpu/drm/ast/ast_drv.c
+++ b/drivers/gpu/drm/ast/ast_drv.c
@@ -90,27 +90,13 @@  static const struct pci_device_id ast_pciidlist[] = {
 
 MODULE_DEVICE_TABLE(pci, ast_pciidlist);
 
-static int ast_remove_conflicting_framebuffers(struct pci_dev *pdev)
-{
-	bool primary = false;
-	resource_size_t base, size;
-
-	base = pci_resource_start(pdev, 0);
-	size = pci_resource_len(pdev, 0);
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-
-	return drm_aperture_remove_conflicting_framebuffers(base, size, primary, &ast_driver);
-}
-
 static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	struct ast_private *ast;
 	struct drm_device *dev;
 	int ret;
 
-	ret = ast_remove_conflicting_framebuffers(pdev);
+	ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &ast_driver);
 	if (ret)
 		return ret;