Re: [PATCH v3 1/3] Kconfig : Remove HAS_IOMEM dependency for Graphics support
From: Christian Borntraeger <hidden>
Date: 2018-02-21 11:22:18
Also in:
linux-s390, lkml
On 02/21/2018 12:14 PM, Thomas Huth wrote:
On 21.02.2018 12:09, Christian Borntraeger wrote:quoted
On 02/21/2018 11:32 AM, Cornelia Huck wrote:quoted
On Wed, 21 Feb 2018 11:22:38 +0100 Christian Borntraeger [off-list ref] wrote:quoted
On 02/21/2018 11:05 AM, Christian Borntraeger wrote:quoted
On 02/19/2018 05:38 PM, Farhan Ali wrote:quoted
On 02/19/2018 11:25 AM, Thomas Huth wrote:quoted
On 19.02.2018 16:47, Farhan Ali wrote:quoted
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 <redacted> --- 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_ATMELconfig 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?
virtio-gpu depends on drm. So in essence it boils down to if you want virtio-gpu you also need to enable PCI, even if the actual channel is ccw.