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* [PATCH v2] drm/bochs: downgrade pci_request_region failure from error to warning
@ 2020-02-07 11:57 ` Gerd Hoffmann
  0 siblings, 0 replies; 9+ messages in thread
From: Gerd Hoffmann @ 2020-02-07 11:57 UTC (permalink / raw)
  To: dri-devel
  Cc: marmarek, Gerd Hoffmann, David Airlie, Daniel Vetter,
	open list:DRM DRIVER FOR BOCHS VIRTUAL GPU, open list

Shutdown of firmware framebuffer has a bunch of problems.  Because
of this the framebuffer region might still be reserved even after
drm_fb_helper_remove_conflicting_pci_framebuffers() returned.

Don't consider pci_request_region() failure for the framebuffer
region as fatal error to workaround this issue.

Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/bochs/bochs_hw.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_hw.c b/drivers/gpu/drm/bochs/bochs_hw.c
index b615b7dfdd9d..a387efa9e559 100644
--- a/drivers/gpu/drm/bochs/bochs_hw.c
+++ b/drivers/gpu/drm/bochs/bochs_hw.c
@@ -157,8 +157,7 @@ int bochs_hw_init(struct drm_device *dev)
 	}
 
 	if (pci_request_region(pdev, 0, "bochs-drm") != 0) {
-		DRM_ERROR("Cannot request framebuffer\n");
-		return -EBUSY;
+		DRM_WARN("Cannot request framebuffer, boot framebuffer still active?\n");
 	}
 
 	bochs->fb_map = ioremap(addr, size);
-- 
2.18.1


^ permalink raw reply related	[flat|nested] 9+ messages in thread
* [PATCH v2] drm/bochs: downgrade pci_request_region failure from error to warning
@ 2020-02-07 11:57 ` Gerd Hoffmann
  0 siblings, 0 replies; 9+ messages in thread
From: Gerd Hoffmann @ 2020-02-07 11:57 UTC (permalink / raw)
  To: dri-devel
  Cc: marmarek, Gerd Hoffmann, David Airlie, Daniel Vetter,
	open list:DRM DRIVER FOR BOCHS VIRTUAL GPU, open list

Shutdown of firmware framebuffer has a bunch of problems.  Because
of this the framebuffer region might still be reserved even after
drm_fb_helper_remove_conflicting_pci_framebuffers() returned.

Don't consider pci_request_region() failure for the framebuffer
region as fatal error to workaround this issue.

Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/bochs/bochs_hw.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_hw.c b/drivers/gpu/drm/bochs/bochs_hw.c
index b615b7dfdd9d..a387efa9e559 100644
--- a/drivers/gpu/drm/bochs/bochs_hw.c
+++ b/drivers/gpu/drm/bochs/bochs_hw.c
@@ -157,8 +157,7 @@ int bochs_hw_init(struct drm_device *dev)
 	}
 
 	if (pci_request_region(pdev, 0, "bochs-drm") != 0) {
-		DRM_ERROR("Cannot request framebuffer\n");
-		return -EBUSY;
+		DRM_WARN("Cannot request framebuffer, boot framebuffer still active?\n");
 	}
 
 	bochs->fb_map = ioremap(addr, size);
-- 
2.18.1

^ permalink raw reply related	[flat|nested] 9+ messages in thread
* [PATCH v2] drm/bochs: downgrade pci_request_region failure from error to warning
@ 2020-02-07 11:57 ` Gerd Hoffmann
  0 siblings, 0 replies; 9+ messages in thread
From: Gerd Hoffmann @ 2020-02-07 11:57 UTC (permalink / raw)
  To: dri-devel
  Cc: marmarek, David Airlie, open list,
	open list:DRM DRIVER FOR BOCHS VIRTUAL GPU, Gerd Hoffmann

Shutdown of firmware framebuffer has a bunch of problems.  Because
of this the framebuffer region might still be reserved even after
drm_fb_helper_remove_conflicting_pci_framebuffers() returned.

Don't consider pci_request_region() failure for the framebuffer
region as fatal error to workaround this issue.

Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/bochs/bochs_hw.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_hw.c b/drivers/gpu/drm/bochs/bochs_hw.c
index b615b7dfdd9d..a387efa9e559 100644
--- a/drivers/gpu/drm/bochs/bochs_hw.c
+++ b/drivers/gpu/drm/bochs/bochs_hw.c
@@ -157,8 +157,7 @@ int bochs_hw_init(struct drm_device *dev)
 	}
 
 	if (pci_request_region(pdev, 0, "bochs-drm") != 0) {
-		DRM_ERROR("Cannot request framebuffer\n");
-		return -EBUSY;
+		DRM_WARN("Cannot request framebuffer, boot framebuffer still active?\n");
 	}
 
 	bochs->fb_map = ioremap(addr, size);
-- 
2.18.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 9+ messages in thread
* Re: [PATCH v2] drm/bochs: downgrade pci_request_region failure from error to warning
  2020-02-07 11:57 ` Gerd Hoffmann
  (?)
@ 2020-02-07 12:06   ` Thomas Zimmermann
  -1 siblings, 0 replies; 9+ messages in thread
From: Thomas Zimmermann @ 2020-02-07 12:06 UTC (permalink / raw)
  To: Gerd Hoffmann, dri-devel
  Cc: marmarek, David Airlie, open list,
	open list:DRM DRIVER FOR BOCHS VIRTUAL GPU


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Hi

Am 07.02.20 um 12:57 schrieb Gerd Hoffmann:
> Shutdown of firmware framebuffer has a bunch of problems.  Because
> of this the framebuffer region might still be reserved even after
> drm_fb_helper_remove_conflicting_pci_framebuffers() returned.

Out of curiosity: what's going wrong here?

Best regards
Thomas

> 
> Don't consider pci_request_region() failure for the framebuffer
> region as fatal error to workaround this issue.
> 
> Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  drivers/gpu/drm/bochs/bochs_hw.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bochs/bochs_hw.c b/drivers/gpu/drm/bochs/bochs_hw.c
> index b615b7dfdd9d..a387efa9e559 100644
> --- a/drivers/gpu/drm/bochs/bochs_hw.c
> +++ b/drivers/gpu/drm/bochs/bochs_hw.c
> @@ -157,8 +157,7 @@ int bochs_hw_init(struct drm_device *dev)
>  	}
>  
>  	if (pci_request_region(pdev, 0, "bochs-drm") != 0) {
> -		DRM_ERROR("Cannot request framebuffer\n");
> -		return -EBUSY;
> +		DRM_WARN("Cannot request framebuffer, boot framebuffer still active?\n");
>  	}
>  
>  	bochs->fb_map = ioremap(addr, size);
> 

-- 
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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^ permalink raw reply	[flat|nested] 9+ messages in thread
* Re: [PATCH v2] drm/bochs: downgrade pci_request_region failure from error to warning
@ 2020-02-07 12:06   ` Thomas Zimmermann
  0 siblings, 0 replies; 9+ messages in thread
From: Thomas Zimmermann @ 2020-02-07 12:06 UTC (permalink / raw)
  To: Gerd Hoffmann, dri-devel
  Cc: marmarek, David Airlie, open list,
	open list:DRM DRIVER FOR BOCHS VIRTUAL GPU


[-- Attachment #1.1: Type: text/plain, Size: 1444 bytes --]

Hi

Am 07.02.20 um 12:57 schrieb Gerd Hoffmann:
> Shutdown of firmware framebuffer has a bunch of problems.  Because
> of this the framebuffer region might still be reserved even after
> drm_fb_helper_remove_conflicting_pci_framebuffers() returned.

Out of curiosity: what's going wrong here?

Best regards
Thomas

> 
> Don't consider pci_request_region() failure for the framebuffer
> region as fatal error to workaround this issue.
> 
> Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  drivers/gpu/drm/bochs/bochs_hw.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bochs/bochs_hw.c b/drivers/gpu/drm/bochs/bochs_hw.c
> index b615b7dfdd9d..a387efa9e559 100644
> --- a/drivers/gpu/drm/bochs/bochs_hw.c
> +++ b/drivers/gpu/drm/bochs/bochs_hw.c
> @@ -157,8 +157,7 @@ int bochs_hw_init(struct drm_device *dev)
>  	}
>  
>  	if (pci_request_region(pdev, 0, "bochs-drm") != 0) {
> -		DRM_ERROR("Cannot request framebuffer\n");
> -		return -EBUSY;
> +		DRM_WARN("Cannot request framebuffer, boot framebuffer still active?\n");
>  	}
>  
>  	bochs->fb_map = ioremap(addr, size);
> 

-- 
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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^ permalink raw reply	[flat|nested] 9+ messages in thread
* Re: [PATCH v2] drm/bochs: downgrade pci_request_region failure from error to warning
@ 2020-02-07 12:06   ` Thomas Zimmermann
  0 siblings, 0 replies; 9+ messages in thread
From: Thomas Zimmermann @ 2020-02-07 12:06 UTC (permalink / raw)
  To: Gerd Hoffmann, dri-devel
  Cc: David Airlie, open list:DRM DRIVER FOR BOCHS VIRTUAL GPU,
	marmarek, open list


[-- Attachment #1.1.1: Type: text/plain, Size: 1444 bytes --]

Hi

Am 07.02.20 um 12:57 schrieb Gerd Hoffmann:
> Shutdown of firmware framebuffer has a bunch of problems.  Because
> of this the framebuffer region might still be reserved even after
> drm_fb_helper_remove_conflicting_pci_framebuffers() returned.

Out of curiosity: what's going wrong here?

Best regards
Thomas

> 
> Don't consider pci_request_region() failure for the framebuffer
> region as fatal error to workaround this issue.
> 
> Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  drivers/gpu/drm/bochs/bochs_hw.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bochs/bochs_hw.c b/drivers/gpu/drm/bochs/bochs_hw.c
> index b615b7dfdd9d..a387efa9e559 100644
> --- a/drivers/gpu/drm/bochs/bochs_hw.c
> +++ b/drivers/gpu/drm/bochs/bochs_hw.c
> @@ -157,8 +157,7 @@ int bochs_hw_init(struct drm_device *dev)
>  	}
>  
>  	if (pci_request_region(pdev, 0, "bochs-drm") != 0) {
> -		DRM_ERROR("Cannot request framebuffer\n");
> -		return -EBUSY;
> +		DRM_WARN("Cannot request framebuffer, boot framebuffer still active?\n");
>  	}
>  
>  	bochs->fb_map = ioremap(addr, size);
> 

-- 
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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_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 9+ messages in thread
* Re: [PATCH v2] drm/bochs: downgrade pci_request_region failure from error to warning
  2020-02-07 12:06   ` Thomas Zimmermann
  (?)
@ 2020-02-07 12:39     ` Gerd Hoffmann
  -1 siblings, 0 replies; 9+ messages in thread
From: Gerd Hoffmann @ 2020-02-07 12:39 UTC (permalink / raw)
  To: Thomas Zimmermann
  Cc: dri-devel, marmarek, David Airlie, open list,
	open list:DRM DRIVER FOR BOCHS VIRTUAL GPU

On Fri, Feb 07, 2020 at 01:06:00PM +0100, Thomas Zimmermann wrote:
> Hi
> 
> Am 07.02.20 um 12:57 schrieb Gerd Hoffmann:
> > Shutdown of firmware framebuffer has a bunch of problems.  Because
> > of this the framebuffer region might still be reserved even after
> > drm_fb_helper_remove_conflicting_pci_framebuffers() returned.
> 
> Out of curiosity: what's going wrong here?

Very short version: userspace keeping /dev/fb0 open delays
firmware framebuffer deinit.

Long version by Daniel Vetter:
https://www.spinics.net/lists/linux-fbdev/msg28178.html

cheers,
  Gerd


^ permalink raw reply	[flat|nested] 9+ messages in thread
* Re: [PATCH v2] drm/bochs: downgrade pci_request_region failure from error to warning
@ 2020-02-07 12:39     ` Gerd Hoffmann
  0 siblings, 0 replies; 9+ messages in thread
From: Gerd Hoffmann @ 2020-02-07 12:39 UTC (permalink / raw)
  To: Thomas Zimmermann
  Cc: dri-devel, marmarek, David Airlie, open list,
	open list:DRM DRIVER FOR BOCHS VIRTUAL GPU

On Fri, Feb 07, 2020 at 01:06:00PM +0100, Thomas Zimmermann wrote:
> Hi
> 
> Am 07.02.20 um 12:57 schrieb Gerd Hoffmann:
> > Shutdown of firmware framebuffer has a bunch of problems.  Because
> > of this the framebuffer region might still be reserved even after
> > drm_fb_helper_remove_conflicting_pci_framebuffers() returned.
> 
> Out of curiosity: what's going wrong here?

Very short version: userspace keeping /dev/fb0 open delays
firmware framebuffer deinit.

Long version by Daniel Vetter:
https://www.spinics.net/lists/linux-fbdev/msg28178.html

cheers,
  Gerd

^ permalink raw reply	[flat|nested] 9+ messages in thread
* Re: [PATCH v2] drm/bochs: downgrade pci_request_region failure from error to warning
@ 2020-02-07 12:39     ` Gerd Hoffmann
  0 siblings, 0 replies; 9+ messages in thread
From: Gerd Hoffmann @ 2020-02-07 12:39 UTC (permalink / raw)
  To: Thomas Zimmermann
  Cc: David Airlie, open list:DRM DRIVER FOR BOCHS VIRTUAL GPU,
	marmarek, dri-devel, open list

On Fri, Feb 07, 2020 at 01:06:00PM +0100, Thomas Zimmermann wrote:
> Hi
> 
> Am 07.02.20 um 12:57 schrieb Gerd Hoffmann:
> > Shutdown of firmware framebuffer has a bunch of problems.  Because
> > of this the framebuffer region might still be reserved even after
> > drm_fb_helper_remove_conflicting_pci_framebuffers() returned.
> 
> Out of curiosity: what's going wrong here?

Very short version: userspace keeping /dev/fb0 open delays
firmware framebuffer deinit.

Long version by Daniel Vetter:
https://www.spinics.net/lists/linux-fbdev/msg28178.html

cheers,
  Gerd

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 9+ messages in thread
end of thread, other threads:[~2020-02-07 12:39 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-02-07 11:57 [PATCH v2] drm/bochs: downgrade pci_request_region failure from error to warning Gerd Hoffmann
2020-02-07 11:57 ` Gerd Hoffmann
2020-02-07 11:57 ` Gerd Hoffmann
2020-02-07 12:06 ` Thomas Zimmermann
2020-02-07 12:06   ` Thomas Zimmermann
2020-02-07 12:06   ` Thomas Zimmermann
2020-02-07 12:39   ` Gerd Hoffmann
2020-02-07 12:39     ` Gerd Hoffmann
2020-02-07 12:39     ` Gerd Hoffmann

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