2022-04-29 21:01:50

by Niklas Schnelle

[permalink] [raw]
Subject: [PATCH 25/37] video: handle HAS_IOPORT dependencies

In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
not being declared. We thus need to add HAS_IOPORT as dependency for
those drivers using them and guard inline code in headers.

Co-developed-by: Arnd Bergmann <[email protected]>
Signed-off-by: Niklas Schnelle <[email protected]>
---
drivers/video/fbdev/Kconfig | 25 +++++++++++++------------
include/video/vga.h | 8 ++++++++
2 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index 93b8d84c34cf..e7d27c0602d5 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -343,7 +343,7 @@ config FB_IMX

config FB_CYBER2000
tristate "CyberPro 2000/2010/5000 support"
- depends on FB && PCI && (BROKEN || !SPARC64)
+ depends on FB && PCI && HAS_IOPORT && (BROKEN || !SPARC64)
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -436,6 +436,7 @@ config FB_FM2
config FB_ARC
tristate "Arc Monochrome LCD board support"
depends on FB && (X86 || COMPILE_TEST)
+ depends on HAS_IOPORT
select FB_SYS_FILLRECT
select FB_SYS_COPYAREA
select FB_SYS_IMAGEBLIT
@@ -1242,7 +1243,7 @@ config FB_RADEON_DEBUG

config FB_ATY128
tristate "ATI Rage128 display support"
- depends on FB && PCI
+ depends on FB && PCI && HAS_IOPORT
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -1265,7 +1266,7 @@ config FB_ATY128_BACKLIGHT

config FB_ATY
tristate "ATI Mach64 display support" if PCI || ATARI
- depends on FB && !SPARC32
+ depends on FB && HAS_IOPORT && !SPARC32
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -1315,7 +1316,7 @@ config FB_ATY_BACKLIGHT

config FB_S3
tristate "S3 Trio/Virge support"
- depends on FB && PCI
+ depends on FB && PCI && HAS_IOPORT
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -1374,7 +1375,7 @@ config FB_SAVAGE_ACCEL

config FB_SIS
tristate "SiS/XGI display support"
- depends on FB && PCI
+ depends on FB && PCI && HAS_IOPORT
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -1404,7 +1405,7 @@ config FB_SIS_315

config FB_VIA
tristate "VIA UniChrome (Pro) and Chrome9 display support"
- depends on FB && PCI && GPIOLIB && I2C && (X86 || COMPILE_TEST)
+ depends on FB && PCI && GPIOLIB && I2C && HAS_IOPORT && (X86 || COMPILE_TEST)
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -1442,7 +1443,7 @@ endif

config FB_NEOMAGIC
tristate "NeoMagic display support"
- depends on FB && PCI
+ depends on FB && PCI && HAS_IOPORT
select FB_MODE_HELPERS
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
@@ -1470,7 +1471,7 @@ config FB_KYRO

config FB_3DFX
tristate "3Dfx Banshee/Voodoo3/Voodoo5 display support"
- depends on FB && PCI
+ depends on FB && PCI && HAS_IOPORT
select FB_CFB_IMAGEBLIT
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
@@ -1518,7 +1519,7 @@ config FB_VOODOO1

config FB_VT8623
tristate "VIA VT8623 support"
- depends on FB && PCI
+ depends on FB && PCI && HAS_IOPORT
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -1532,7 +1533,7 @@ config FB_VT8623

config FB_TRIDENT
tristate "Trident/CyberXXX/CyberBlade support"
- depends on FB && PCI
+ depends on FB && PCI && HAS_IOPORT
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -1554,7 +1555,7 @@ config FB_TRIDENT

config FB_ARK
tristate "ARK 2000PV support"
- depends on FB && PCI
+ depends on FB && PCI && HAS_IOPORT
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -2226,7 +2227,7 @@ config FB_SSD1307

config FB_SM712
tristate "Silicon Motion SM712 framebuffer support"
- depends on FB && PCI
+ depends on FB && PCI && HAS_IOPORT
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
diff --git a/include/video/vga.h b/include/video/vga.h
index d334e64c1c19..53cb52c0fddb 100644
--- a/include/video/vga.h
+++ b/include/video/vga.h
@@ -201,18 +201,26 @@ extern int restore_vga(struct vgastate *state);

static inline unsigned char vga_io_r (unsigned short port)
{
+#ifdef CONFIG_HAS_IOPORT
return inb_p(port);
+#else
+ return 0xff;
+#endif
}

static inline void vga_io_w (unsigned short port, unsigned char val)
{
+#ifdef CONFIG_HAS_IOPORT
outb_p(val, port);
+#endif
}

static inline void vga_io_w_fast (unsigned short port, unsigned char reg,
unsigned char val)
{
+#ifdef CONFIG_HAS_IOPORT
outw(VGA_OUT16VAL (val, reg), port);
+#endif
}

static inline unsigned char vga_mm_r (void __iomem *regbase, unsigned short port)
--
2.32.0


2022-04-29 21:43:32

by Niklas Schnelle

[permalink] [raw]
Subject: Re: [PATCH 25/37] video: handle HAS_IOPORT dependencies

On Fri, 2022-04-29 at 15:50 +0200, Niklas Schnelle wrote:
> In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
> not being declared. We thus need to add HAS_IOPORT as dependency for
> those drivers using them and guard inline code in headers.
>
> Co-developed-by: Arnd Bergmann <[email protected]>
> Signed-off-by: Niklas Schnelle <[email protected]>
> ---

Sorry everyone. I sent this as PATCH in error while preparing to sent
the same series as RFC. Since e-mail has no remote delete and I lack a
time machine let's just all pretend you only got the RFC.