[PATCH v2 1/8] um: allow disabling NO_IOMEM

From: Johannes Berg
Date: Mon Mar 01 2021 - 10:09:03 EST


From: Johannes Berg <johannes.berg@xxxxxxxxx>

Adjust the kconfig a little to allow disabling NO_IOMEM in UML. To
make an "allyesconfig" with CONFIG_NO_IOMEM=n build, adjust a few
Kconfig things elsewhere and add dummy asm/fb.h and asm/vga.h files.

Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
v2: use asm-generic for fb.h and vga.h
---
arch/um/Kconfig | 4 ++++
arch/um/include/asm/Kbuild | 2 ++
drivers/input/Kconfig | 1 -
drivers/input/gameport/Kconfig | 1 +
drivers/input/joystick/Kconfig | 1 +
drivers/tty/Kconfig | 5 ++---
drivers/video/console/Kconfig | 2 +-
7 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index c3030db3325f..20b0640e01b8 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -26,6 +26,10 @@ config MMU
default y

config NO_IOMEM
+ bool "disable IOMEM" if EXPERT
+ default y
+
+config NO_IOPORT_MAP
def_bool y

config ISA
diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild
index d7492e5a1bbb..10b7228b3aee 100644
--- a/arch/um/include/asm/Kbuild
+++ b/arch/um/include/asm/Kbuild
@@ -7,6 +7,7 @@ generic-y += device.h
generic-y += emergency-restart.h
generic-y += exec.h
generic-y += extable.h
+generic-y += fb.h
generic-y += ftrace.h
generic-y += futex.h
generic-y += hw_irq.h
@@ -27,3 +28,4 @@ generic-y += trace_clock.h
generic-y += word-at-a-time.h
generic-y += kprobes.h
generic-y += mm_hooks.h
+generic-y += vga.h
diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig
index ec0e861f185f..5baebf62df33 100644
--- a/drivers/input/Kconfig
+++ b/drivers/input/Kconfig
@@ -4,7 +4,6 @@
#

menu "Input device support"
- depends on !UML

config INPUT
tristate "Generic input layer (needed for keyboard, mouse, ...)" if EXPERT
diff --git a/drivers/input/gameport/Kconfig b/drivers/input/gameport/Kconfig
index 4761795cb49f..5a2c2fb3217d 100644
--- a/drivers/input/gameport/Kconfig
+++ b/drivers/input/gameport/Kconfig
@@ -4,6 +4,7 @@
#
config GAMEPORT
tristate "Gameport support"
+ depends on !UML
help
Gameport support is for the standard 15-pin PC gameport. If you
have a joystick, gamepad, gameport card, a soundcard with a gameport
diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig
index 5e38899058c1..b10948bf9551 100644
--- a/drivers/input/joystick/Kconfig
+++ b/drivers/input/joystick/Kconfig
@@ -4,6 +4,7 @@
#
menuconfig INPUT_JOYSTICK
bool "Joysticks/Gamepads"
+ depends on !UML
help
If you have a joystick, 6dof controller, gamepad, steering wheel,
weapon control system or something like that you can say Y here
diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig
index e15cd6b5bb99..26648daaaee2 100644
--- a/drivers/tty/Kconfig
+++ b/drivers/tty/Kconfig
@@ -12,9 +12,8 @@ if TTY

config VT
bool "Virtual terminal" if EXPERT
- depends on !UML
select INPUT
- default y
+ default y if !UML
help
If you say Y here, you will get support for terminal devices with
display and keyboard devices. These are called "virtual" because you
@@ -78,7 +77,7 @@ config VT_CONSOLE_SLEEP

config HW_CONSOLE
bool
- depends on VT && !UML
+ depends on VT
default y

config VT_HW_CONSOLE_BINDING
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index ee33b8ec62bb..840d9813b0bc 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -9,7 +9,7 @@ config VGA_CONSOLE
bool "VGA text console" if EXPERT || !X86
depends on !4xx && !PPC_8xx && !SPARC && !M68K && !PARISC && !SUPERH && \
(!ARM || ARCH_FOOTBRIDGE || ARCH_INTEGRATOR || ARCH_NETWINDER) && \
- !ARM64 && !ARC && !MICROBLAZE && !OPENRISC && !NDS32 && !S390
+ !ARM64 && !ARC && !MICROBLAZE && !OPENRISC && !NDS32 && !S390 && !UML
default y
help
Saying Y here will allow you to use Linux in text mode through a
--
2.26.2