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-rw-r--r--drivers/gpu/drm/gma500/Kconfig2
-rw-r--r--drivers/gpu/drm/qxl/Kconfig2
-rw-r--r--drivers/gpu/drm/tiny/bochs.c19
-rw-r--r--drivers/gpu/drm/tiny/cirrus.c2
-rw-r--r--drivers/gpu/drm/xe/Kconfig2
5 files changed, 19 insertions, 8 deletions
diff --git a/drivers/gpu/drm/gma500/Kconfig b/drivers/gpu/drm/gma500/Kconfig
index efb4a2dd2f80..23b7c14de5e2 100644
--- a/drivers/gpu/drm/gma500/Kconfig
+++ b/drivers/gpu/drm/gma500/Kconfig
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
config DRM_GMA500
tristate "Intel GMA500/600/3600/3650 KMS Framebuffer"
- depends on DRM && PCI && X86 && MMU
+ depends on DRM && PCI && X86 && MMU && HAS_IOPORT
select DRM_KMS_HELPER
select FB_IOMEM_HELPERS if DRM_FBDEV_EMULATION
select I2C
diff --git a/drivers/gpu/drm/qxl/Kconfig b/drivers/gpu/drm/qxl/Kconfig
index ca3f51c2a8fe..17d6927e5e23 100644
--- a/drivers/gpu/drm/qxl/Kconfig
+++ b/drivers/gpu/drm/qxl/Kconfig
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
config DRM_QXL
tristate "QXL virtual GPU"
- depends on DRM && PCI && MMU
+ depends on DRM && PCI && MMU && HAS_IOPORT
select DRM_KMS_HELPER
select DRM_TTM
select DRM_TTM_HELPER
diff --git a/drivers/gpu/drm/tiny/bochs.c b/drivers/gpu/drm/tiny/bochs.c
index 31fc5d839e10..e738bb858316 100644
--- a/drivers/gpu/drm/tiny/bochs.c
+++ b/drivers/gpu/drm/tiny/bochs.c
@@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-or-later
+#include <linux/bug.h>
#include <linux/module.h>
#include <linux/pci.h>
@@ -95,12 +96,17 @@ struct bochs_device {
/* ---------------------------------------------------------------------- */
+static __always_inline bool bochs_uses_mmio(struct bochs_device *bochs)
+{
+ return !IS_ENABLED(CONFIG_HAS_IOPORT) || bochs->mmio;
+}
+
static void bochs_vga_writeb(struct bochs_device *bochs, u16 ioport, u8 val)
{
if (WARN_ON(ioport < 0x3c0 || ioport > 0x3df))
return;
- if (bochs->mmio) {
+ if (bochs_uses_mmio(bochs)) {
int offset = ioport - 0x3c0 + 0x400;
writeb(val, bochs->mmio + offset);
@@ -114,7 +120,7 @@ static u8 bochs_vga_readb(struct bochs_device *bochs, u16 ioport)
if (WARN_ON(ioport < 0x3c0 || ioport > 0x3df))
return 0xff;
- if (bochs->mmio) {
+ if (bochs_uses_mmio(bochs)) {
int offset = ioport - 0x3c0 + 0x400;
return readb(bochs->mmio + offset);
@@ -127,7 +133,7 @@ static u16 bochs_dispi_read(struct bochs_device *bochs, u16 reg)
{
u16 ret = 0;
- if (bochs->mmio) {
+ if (bochs_uses_mmio(bochs)) {
int offset = 0x500 + (reg << 1);
ret = readw(bochs->mmio + offset);
@@ -140,7 +146,7 @@ static u16 bochs_dispi_read(struct bochs_device *bochs, u16 reg)
static void bochs_dispi_write(struct bochs_device *bochs, u16 reg, u16 val)
{
- if (bochs->mmio) {
+ if (bochs_uses_mmio(bochs)) {
int offset = 0x500 + (reg << 1);
writew(val, bochs->mmio + offset);
@@ -228,7 +234,7 @@ static int bochs_hw_init(struct drm_device *dev)
DRM_ERROR("Cannot map mmio region\n");
return -ENOMEM;
}
- } else {
+ } else if (IS_ENABLED(CONFIG_HAS_IOPORT)) {
ioaddr = VBE_DISPI_IOPORT_INDEX;
iosize = 2;
if (!request_region(ioaddr, iosize, "bochs-drm")) {
@@ -236,6 +242,9 @@ static int bochs_hw_init(struct drm_device *dev)
return -EBUSY;
}
bochs->ioports = 1;
+ } else {
+ dev_err(dev->dev, "I/O ports are not supported\n");
+ return -EIO;
}
id = bochs_dispi_read(bochs, VBE_DISPI_INDEX_ID);
diff --git a/drivers/gpu/drm/tiny/cirrus.c b/drivers/gpu/drm/tiny/cirrus.c
index 751326e3d9c3..e31e1df029ab 100644
--- a/drivers/gpu/drm/tiny/cirrus.c
+++ b/drivers/gpu/drm/tiny/cirrus.c
@@ -509,8 +509,10 @@ static void cirrus_crtc_helper_atomic_enable(struct drm_crtc *crtc,
cirrus_mode_set(cirrus, &crtc_state->mode);
+#ifdef CONFIG_HAS_IOPORT
/* Unblank (needed on S3 resume, vgabios doesn't do it then) */
outb(VGA_AR_ENABLE_DISPLAY, VGA_ATT_W);
+#endif
drm_dev_exit(idx);
}
diff --git a/drivers/gpu/drm/xe/Kconfig b/drivers/gpu/drm/xe/Kconfig
index 7bbe46a98ff1..116f58774135 100644
--- a/drivers/gpu/drm/xe/Kconfig
+++ b/drivers/gpu/drm/xe/Kconfig
@@ -49,7 +49,7 @@ config DRM_XE
config DRM_XE_DISPLAY
bool "Enable display support"
- depends on DRM_XE && DRM_XE=m
+ depends on DRM_XE && DRM_XE=m && HAS_IOPORT
select FB_IOMEM_HELPERS
select I2C
select I2C_ALGOBIT