From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Huth Date: Wed, 21 Feb 2018 11:14:36 +0000 Subject: Re: [PATCH v3 1/3] Kconfig : Remove HAS_IOMEM dependency for Graphics support Message-Id: References: <2beec7645bac82e7bdef4f6df0b9f4fe28696575.1519053920.git.alifm@linux.vnet.ibm.com> <6cae85dc-76d5-1b92-ab13-a5e441eb84a0@linux.vnet.ibm.com> <20180221113217.11bb1c69.cohuck@redhat.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit List-Archive: List-Post: To: Christian Borntraeger , Cornelia Huck Cc: Farhan Ali , linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, linux-fbdev@vger.kernel.org, geert@linux-m68k.org, tomi.valkeinen@ti.com, b.zolnierkie@samsung.com List-ID: On 21.02.2018 12:09, Christian Borntraeger wrote: > > > On 02/21/2018 11:32 AM, Cornelia Huck wrote: >> On Wed, 21 Feb 2018 11:22:38 +0100 >> Christian Borntraeger wrote: >> >>> On 02/21/2018 11:05 AM, Christian Borntraeger wrote: >>>> >>>> >>>> On 02/19/2018 05:38 PM, Farhan Ali wrote: >>>>> >>>>> >>>>> On 02/19/2018 11:25 AM, Thomas Huth wrote: >>>>>> On 19.02.2018 16:47, Farhan Ali wrote: >>>>>>> The 'commit e25df1205f37 ("[S390] Kconfig: menus with depends on HAS_IOMEM.")' >>>>>>> added the HAS_IOMEM dependecy for "Graphics support". This disabled the >>>>>>> "Graphics support" menu for S390. But if we enable VT layer for S390, >>>>>>> we would also need to enable the dummy console. So let's remove the >>>>>>> HAS_IOMEM dependency. >>>>>>> >>>>>>> Move this dependency to sub menu items and console drivers that use >>>>>>> io memory. >>>>>>> >>>>>>> Signed-off-by: Farhan Ali >>>>>>> --- >>>>>>>   drivers/video/Kconfig         | 21 +++++++++++---------- >>>>>>>   drivers/video/console/Kconfig |  4 ++-- >>>>>>>   2 files changed, 13 insertions(+), 12 deletions(-) >>>>>>> >>>>>>> diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig >>>>>>> index 3c20af9..8f10915 100644 >>>>>>> --- a/drivers/video/Kconfig >>>>>>> +++ b/drivers/video/Kconfig >>>>>>> @@ -3,7 +3,6 @@ >>>>>>>   # >>>>>>>     menu "Graphics support" >>>>>>> -    depends on HAS_IOMEM >>>>>>>     config HAVE_FB_ATMEL >>>>>>>       bool >>>>>>> @@ -11,20 +10,22 @@ config HAVE_FB_ATMEL >>>>>>>   config SH_LCD_MIPI_DSI >>>>>>>       bool >>>>>>>   -source "drivers/char/agp/Kconfig" >>>>>>> +if HAS_IOMEM >>>>>>> +    source "drivers/char/agp/Kconfig" >>>>>>>   -source "drivers/gpu/vga/Kconfig" >>>>>>> +    source "drivers/gpu/vga/Kconfig" >>>>>>>   -source "drivers/gpu/host1x/Kconfig" >>>>>>> -source "drivers/gpu/ipu-v3/Kconfig" >>>>>>> +    source "drivers/gpu/host1x/Kconfig" >>>>>>> +    source "drivers/gpu/ipu-v3/Kconfig" >>>>>>>   -source "drivers/gpu/drm/Kconfig" >>>>>>> +    source "drivers/gpu/drm/Kconfig" >>>> >>>> >>>> Hmmm, looks like that this makes it impossible to select VIRTIO_GPU - need still more >>>> work. >>>> >>> Sorry my fault. I had CONFIG_PCI disabled. >> >> That smells like the s390 HAS_IOMEM stuff needs more work -- I guess >> that you want to enable a ccw virtio-gpu device, not a pci one, right? > > It is a ccw virtio-gpu. But s390 has no IOMEM without CONFIG_PCI, so you cannot > select VIRTIO_GPU, which needs DRM, which need IOMEM. So the 'source "drivers/gpu/drm/Kconfig"' should maybe rather reside outside of the "if HAS_IOMEM" path? Or does it not compile anymore that way? Thomas