* [PATCH] drm/hisilicon: Fixed pcie resource conflict using the general API
@ 2020-02-21 5:55 Tian Tao
[not found] ` <CAKoKPbztX8--gWgLDYJFQX1=Wf1jiFKx+H2_RFN90fxOpr_RdQ@mail.gmail.com>
2020-02-21 8:55 ` Thomas Zimmermann
0 siblings, 2 replies; 4+ messages in thread
From: Tian Tao @ 2020-02-21 5:55 UTC (permalink / raw)
To: puck.chen, airlied, daniel, tzimmermann, kraxel,
alexander.deucher, tglx, dri-devel, xinliang.liu, linux-kernel
Cc: linuxarm
the kernel provide the drm_fb_helper_remove_conflicting_pci_framebuffer
to remvoe the pcie resource conflict,there is no need to driver it again.
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
---
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 22 +++++-----------------
1 file changed, 5 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
index 7ebe831..0f7dba7 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
@@ -47,22 +47,6 @@ static irqreturn_t hibmc_drm_interrupt(int irq, void *arg)
return IRQ_HANDLED;
}
-static void hibmc_remove_framebuffers(struct pci_dev *pdev)
-{
- struct apertures_struct *ap;
-
- ap = alloc_apertures(1);
- if (!ap)
- return;
-
- ap->ranges[0].base = pci_resource_start(pdev, 0);
- ap->ranges[0].size = pci_resource_len(pdev, 0);
-
- drm_fb_helper_remove_conflicting_framebuffers(ap, "hibmcdrmfb", false);
-
- kfree(ap);
-}
-
static struct drm_driver hibmc_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
.fops = &hibmc_fops,
@@ -343,7 +327,11 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
struct drm_device *dev;
int ret;
- hibmc_remove_framebuffers(pdev);
+ ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
+ "hibmcdrmfb");
+ if (ret)
+ return ret;
+
dev = drm_dev_alloc(&hibmc_driver, &pdev->dev);
if (IS_ERR(dev)) {
--
2.7.4
^ permalink raw reply [flat|nested] 4+ messages in thread[parent not found: <CAKoKPbztX8--gWgLDYJFQX1=Wf1jiFKx+H2_RFN90fxOpr_RdQ@mail.gmail.com>]
* Re: [PATCH] drm/hisilicon: Fixed pcie resource conflict using the general API
[not found] ` <CAKoKPbztX8--gWgLDYJFQX1=Wf1jiFKx+H2_RFN90fxOpr_RdQ@mail.gmail.com>
@ 2020-02-21 8:52 ` Thomas Zimmermann
2020-02-21 8:56 ` tiantao (H)
0 siblings, 1 reply; 4+ messages in thread
From: Thomas Zimmermann @ 2020-02-21 8:52 UTC (permalink / raw)
To: Xinliang Liu, Tian Tao
Cc: puck.chen, airlied, Daniel Vetter, kraxel, alexander.deucher,
tglx, dri-devel, linux-kernel, linuxarm
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Hi
Am 21.02.20 um 08:06 schrieb Xinliang Liu:
> Hi tao,
> Are you sending a wrong patch?
> Function hibmc_remove_framebuffers is added by your prior reviewing patch.
> Please send patch based on drm-misc-next branch[1] or linux-next.
There's drm_fb_helper_remove_conflicting_pci_framebuffers() which
already implements the functionality. I asked to try using it instead of
creating an own implementation.
Best regards
Thomas
>
> Thanks,
> -Xinliang
>
> [1] https://anongit.freedesktop.org/git/drm-misc.git
>
> On Fri, 21 Feb 2020 at 13:56, Tian Tao <tiantao6@hisilicon.com
> <mailto:tiantao6@hisilicon.com>> wrote:
>
> the kernel provide the drm_fb_helper_remove_conflicting_pci_framebuffer
> to remvoe the pcie resource conflict,there is no need to driver it
> again.
>
> Signed-off-by: Tian Tao <tiantao6@hisilicon.com
> <mailto:tiantao6@hisilicon.com>>
> ---
> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 22
> +++++-----------------
> 1 file changed, 5 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> index 7ebe831..0f7dba7 100644
> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> @@ -47,22 +47,6 @@ static irqreturn_t hibmc_drm_interrupt(int irq,
> void *arg)
> return IRQ_HANDLED;
> }
>
> -static void hibmc_remove_framebuffers(struct pci_dev *pdev)
> -{
> - struct apertures_struct *ap;
> -
> - ap = alloc_apertures(1);
> - if (!ap)
> - return;
> -
> - ap->ranges[0].base = pci_resource_start(pdev, 0);
> - ap->ranges[0].size = pci_resource_len(pdev, 0);
> -
> - drm_fb_helper_remove_conflicting_framebuffers(ap,
> "hibmcdrmfb", false);
> -
> - kfree(ap);
> -}
> -
> static struct drm_driver hibmc_driver = {
> .driver_features = DRIVER_GEM | DRIVER_MODESET |
> DRIVER_ATOMIC,
> .fops = &hibmc_fops,
> @@ -343,7 +327,11 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
> struct drm_device *dev;
> int ret;
>
> - hibmc_remove_framebuffers(pdev);
> + ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
> +
> "hibmcdrmfb");
> + if (ret)
> + return ret;
> +
>
> dev = drm_dev_alloc(&hibmc_driver, &pdev->dev);
> if (IS_ERR(dev)) {
> --
> 2.7.4
>
--
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] 4+ messages in thread* Re: [PATCH] drm/hisilicon: Fixed pcie resource conflict using the general API
2020-02-21 8:52 ` Thomas Zimmermann
@ 2020-02-21 8:56 ` tiantao (H)
0 siblings, 0 replies; 4+ messages in thread
From: tiantao (H) @ 2020-02-21 8:56 UTC (permalink / raw)
To: Thomas Zimmermann, Xinliang Liu, Tian Tao
Cc: puck.chen, airlied, Daniel Vetter, kraxel, alexander.deucher,
tglx, dri-devel, linux-kernel, linuxarm
Sorry,my mistake. I sent the wrong patch, please ignore the patch below
在 2020/2/21 16:52, Thomas Zimmermann 写道:
> Hi
>
> Am 21.02.20 um 08:06 schrieb Xinliang Liu:
>> Hi tao,
>> Are you sending a wrong patch?
>> Function hibmc_remove_framebuffers is added by your prior reviewing patch.
>> Please send patch based on drm-misc-next branch[1] or linux-next.
>
> There's drm_fb_helper_remove_conflicting_pci_framebuffers() which
> already implements the functionality. I asked to try using it instead of
> creating an own implementation.
>
> Best regards
> Thomas
>
>>
>> Thanks,
>> -Xinliang
>>
>> [1] https://anongit.freedesktop.org/git/drm-misc.git
>>
>> On Fri, 21 Feb 2020 at 13:56, Tian Tao <tiantao6@hisilicon.com
>> <mailto:tiantao6@hisilicon.com>> wrote:
>>
>> the kernel provide the drm_fb_helper_remove_conflicting_pci_framebuffer
>> to remvoe the pcie resource conflict,there is no need to driver it
>> again.
>>
>> Signed-off-by: Tian Tao <tiantao6@hisilicon.com
>> <mailto:tiantao6@hisilicon.com>>
>> ---
>> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 22
>> +++++-----------------
>> 1 file changed, 5 insertions(+), 17 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
>> b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
>> index 7ebe831..0f7dba7 100644
>> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
>> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
>> @@ -47,22 +47,6 @@ static irqreturn_t hibmc_drm_interrupt(int irq,
>> void *arg)
>> return IRQ_HANDLED;
>> }
>>
>> -static void hibmc_remove_framebuffers(struct pci_dev *pdev)
>> -{
>> - struct apertures_struct *ap;
>> -
>> - ap = alloc_apertures(1);
>> - if (!ap)
>> - return;
>> -
>> - ap->ranges[0].base = pci_resource_start(pdev, 0);
>> - ap->ranges[0].size = pci_resource_len(pdev, 0);
>> -
>> - drm_fb_helper_remove_conflicting_framebuffers(ap,
>> "hibmcdrmfb", false);
>> -
>> - kfree(ap);
>> -}
>> -
>> static struct drm_driver hibmc_driver = {
>> .driver_features = DRIVER_GEM | DRIVER_MODESET |
>> DRIVER_ATOMIC,
>> .fops = &hibmc_fops,
>> @@ -343,7 +327,11 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
>> struct drm_device *dev;
>> int ret;
>>
>> - hibmc_remove_framebuffers(pdev);
>> + ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
>> +
>> "hibmcdrmfb");
>> + if (ret)
>> + return ret;
>> +
>>
>> dev = drm_dev_alloc(&hibmc_driver, &pdev->dev);
>> if (IS_ERR(dev)) {
>> --
>> 2.7.4
>>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] drm/hisilicon: Fixed pcie resource conflict using the general API
2020-02-21 5:55 [PATCH] drm/hisilicon: Fixed pcie resource conflict using the general API Tian Tao
[not found] ` <CAKoKPbztX8--gWgLDYJFQX1=Wf1jiFKx+H2_RFN90fxOpr_RdQ@mail.gmail.com>
@ 2020-02-21 8:55 ` Thomas Zimmermann
1 sibling, 0 replies; 4+ messages in thread
From: Thomas Zimmermann @ 2020-02-21 8:55 UTC (permalink / raw)
To: Tian Tao, puck.chen, airlied, daniel, kraxel, alexander.deucher,
tglx, dri-devel, xinliang.liu, linux-kernel
Cc: linuxarm
[-- Attachment #1.1: Type: text/plain, Size: 1994 bytes --]
Hi
Am 21.02.20 um 06:55 schrieb Tian Tao:
> the kernel provide the drm_fb_helper_remove_conflicting_pci_framebuffer
> to remvoe the pcie resource conflict,there is no need to driver it again.
>
> Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
> ---
> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 22 +++++-----------------
> 1 file changed, 5 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> index 7ebe831..0f7dba7 100644
> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> @@ -47,22 +47,6 @@ static irqreturn_t hibmc_drm_interrupt(int irq, void *arg)
> return IRQ_HANDLED;
> }
>
> -static void hibmc_remove_framebuffers(struct pci_dev *pdev)
> -{
> - struct apertures_struct *ap;
> -
> - ap = alloc_apertures(1);
> - if (!ap)
> - return;
> -
> - ap->ranges[0].base = pci_resource_start(pdev, 0);
> - ap->ranges[0].size = pci_resource_len(pdev, 0);
> -
> - drm_fb_helper_remove_conflicting_framebuffers(ap, "hibmcdrmfb", false);
> -
> - kfree(ap);
> -}
> -
> static struct drm_driver hibmc_driver = {
> .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
> .fops = &hibmc_fops,
> @@ -343,7 +327,11 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
> struct drm_device *dev;
> int ret;
>
> - hibmc_remove_framebuffers(pdev);
> + ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
> + "hibmcdrmfb");
> + if (ret)
> + return ret;
> +
>
Only one empty line please. With this change
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
> dev = drm_dev_alloc(&hibmc_driver, &pdev->dev);
> if (IS_ERR(dev)) {
>
--
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] 4+ messages in thread
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2020-02-21 5:55 [PATCH] drm/hisilicon: Fixed pcie resource conflict using the general API Tian Tao
[not found] ` <CAKoKPbztX8--gWgLDYJFQX1=Wf1jiFKx+H2_RFN90fxOpr_RdQ@mail.gmail.com>
2020-02-21 8:52 ` Thomas Zimmermann
2020-02-21 8:56 ` tiantao (H)
2020-02-21 8:55 ` Thomas Zimmermann
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