lkml.org 
[lkml]   [2021]   [Oct]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
SubjectRe: [PATCH 1/1] riscv: defconfig: enable DRM_NOUVEAU
From
On Wed, 27 Oct 2021 00:31:54 PDT (-0700), heinrich.schuchardt@canonical.com wrote:
> On 10/27/21 04:31, Damien Le Moal wrote:
>> On 2021/10/27 8:58, Palmer Dabbelt wrote:
>>> On Tue, 12 Oct 2021 09:46:58 PDT (-0700), heinrich.schuchardt@canonical.com wrote:
>>>> Both RADEON and NOUVEAU graphics cards are supported on RISC-V. Enabling
>>>> the one and not the other does not make sense.
>>>>
>>>> As typically at most one of RADEON, NOUVEAU, or VIRTIO GPU support will be
>>>> needed DRM drivers should be compiled as modules.
>>>
>>> Do you have an nVidia card that works on real hardware? Last I checked
>>> was a while ago, but they weren't working at the time (IIRC it was
>>> something to do with PCIe addressing, but it was a hardware limitation
>>> so I don't remember exactly how it all fits together).
>>>
>>> If they work then I'm happy to flip them on.
>
> My SiFive Unmatched is running KDE on a GT710.
>
> It would be unfair to treat the two major GPU vendors AMD and Nvidia
> differently.
>
>>
>> Why enable this at all ? If they do not work, then disabling theses cards make
>> sense. But if they do work, isn't leaving the config to be the default defined
>> by the driver the preferred approach ? Otherwise, we will eventually end-up with
>> a defconfig that has everything enabled...
>
> If you want to get your system up, having keyboard input and GPU output
> is the bare minimum that you need to proceed unless you are a developer
> working over UART and have a second system available.
>
> To keep the kernel small DRM drivers should be modules.

I can buy the argument for not having any of this in arch defconfigs,
but in practice there's a lot of stuff in defconfigs that I don't really
think should be arch decisions (ext4, for example). If we've got AMD in
there and the nVidia cards work then I don't see any reason to
differentiate between the two, so let's just do the same thing for both.

This is on for-next.

>
> Best regards
>
> Heinrich
>
>>
>>>
>>>> Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
>>>> ---
>>>> arch/riscv/configs/defconfig | 7 ++++---
>>>> 1 file changed, 4 insertions(+), 3 deletions(-)
>>>>
>>>> diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig
>>>> index 4ebc80315f01..c252fd5706d2 100644
>>>> --- a/arch/riscv/configs/defconfig
>>>> +++ b/arch/riscv/configs/defconfig
>>>> @@ -72,9 +72,10 @@ CONFIG_GPIOLIB=y
>>>> CONFIG_GPIO_SIFIVE=y
>>>> # CONFIG_PTP_1588_CLOCK is not set
>>>> CONFIG_POWER_RESET=y
>>>> -CONFIG_DRM=y
>>>> -CONFIG_DRM_RADEON=y
>>>> -CONFIG_DRM_VIRTIO_GPU=y
>>>> +CONFIG_DRM=m
>>>> +CONFIG_DRM_RADEON=m
>>>> +CONFIG_DRM_NOUVEAU=m
>>>> +CONFIG_DRM_VIRTIO_GPU=m
>>>> CONFIG_FRAMEBUFFER_CONSOLE=y
>>>> CONFIG_USB=y
>>>> CONFIG_USB_XHCI_HCD=y
>>>
>>> _______________________________________________
>>> linux-riscv mailing list
>>> linux-riscv@lists.infradead.org
>>> http://lists.infradead.org/mailman/listinfo/linux-riscv
>>>
>>
>>

\
 
 \ /
  Last update: 2021-10-28 00:13    [W:0.059 / U:0.948 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site