[RFC 3/6] drm/i915: Remove local fbdev emulation Kconfig option

From: Archit Taneja
Date: Tue Mar 10 2015 - 05:42:06 EST


DRM_I915_FBDEV config is currently used to enable/disable fbdev emulation for
the i915 kms driver.

Replace this with the top level DRM_FBDEV_EMULATION config option. Using this
config lets us also prevent wrapping around drm_fb_helper_* calls with #ifdefs
in certain places.

The #ifdef in drm_i915_private struct adding/removing members intel_fbdev and
fbdev_suspend_work has been removed. This helps us use stub drm helper functions
at not much cost.

Signed-off-by: Archit Taneja <architt@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/Kconfig | 15 ---------------
drivers/gpu/drm/i915/Makefile | 4 ++--
drivers/gpu/drm/i915/i915_debugfs.c | 2 +-
drivers/gpu/drm/i915/i915_drv.h | 2 --
drivers/gpu/drm/i915/intel_display.c | 10 ++++------
drivers/gpu/drm/i915/intel_dp_mst.c | 14 ++++++++------
drivers/gpu/drm/i915/intel_drv.h | 3 +--
drivers/gpu/drm/i915/intel_fbdev.c | 7 -------
8 files changed, 16 insertions(+), 41 deletions(-)

diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig
index 74acca9..bd9ccfc 100644
--- a/drivers/gpu/drm/i915/Kconfig
+++ b/drivers/gpu/drm/i915/Kconfig
@@ -45,21 +45,6 @@ config DRM_I915_KMS

If in doubt, say "Y".

-config DRM_I915_FBDEV
- bool "Enable legacy fbdev support for the modesetting intel driver"
- depends on DRM_I915
- select DRM_KMS_FB_HELPER
- select FB_CFB_FILLRECT
- select FB_CFB_COPYAREA
- select FB_CFB_IMAGEBLIT
- default y
- help
- Choose this option if you have a need for the legacy fbdev
- support. Note that this support also provide the linux console
- support on top of the intel modesetting driver.
-
- If in doubt, say "Y".
-
config DRM_I915_PRELIMINARY_HW_SUPPORT
bool "Enable preliminary support for prerelease Intel hardware by default"
depends on DRM_I915
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index f019225..3b3325d 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -56,8 +56,8 @@ i915-y += intel_audio.o \
intel_psr.o \
intel_sideband.o \
intel_sprite.o
-i915-$(CONFIG_ACPI) += intel_acpi.o intel_opregion.o
-i915-$(CONFIG_DRM_I915_FBDEV) += intel_fbdev.o
+i915-$(CONFIG_ACPI) += intel_acpi.o intel_opregion.o
+i915-$(CONFIG_DRM_FBDEV_EMULATION) += intel_fbdev.o

# modesetting output/encoder code
i915-y += dvo_ch7017.o \
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index e8b18e5..0c8bcd7 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1772,7 +1772,7 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
struct intel_fbdev *ifbdev = NULL;
struct intel_framebuffer *fb;

-#ifdef CONFIG_DRM_I915_FBDEV
+#ifdef CONFIG_DRM_FBDEV_EMULATION
struct drm_i915_private *dev_priv = dev->dev_private;

ifbdev = dev_priv->fbdev;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 8727086..e511fa4 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1819,11 +1819,9 @@ struct drm_i915_private {

struct drm_i915_gem_object *vlv_pctx;

-#ifdef CONFIG_DRM_I915_FBDEV
/* list of fbdev register on this device */
struct intel_fbdev *fbdev;
struct work_struct fbdev_suspend_work;
-#endif

struct drm_property *broadcast_rgb_property;
struct drm_property *force_audio_property;
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index e730789..9cf13e6 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8562,7 +8562,6 @@ static struct drm_framebuffer *
mode_fits_in_fbdev(struct drm_device *dev,
struct drm_display_mode *mode)
{
-#ifdef CONFIG_DRM_I915_FBDEV
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj;
struct drm_framebuffer *fb;
@@ -8585,9 +8584,6 @@ mode_fits_in_fbdev(struct drm_device *dev,
return NULL;

return fb;
-#else
- return NULL;
-#endif
}

bool intel_get_load_detect_pipe(struct drm_connector *connector,
@@ -12807,11 +12803,13 @@ intel_user_framebuffer_create(struct drm_device *dev,
return intel_framebuffer_create(dev, mode_cmd, obj);
}

-#ifndef CONFIG_DRM_I915_FBDEV
static inline void intel_fbdev_output_poll_changed(struct drm_device *dev)
{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ if (dev_priv->fbdev)
+ drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper);
}
-#endif

static const struct drm_mode_config_funcs intel_mode_funcs = {
.fb_create = intel_user_framebuffer_create,
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 9f67a37..fe69df0 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -376,18 +376,20 @@ static bool intel_dp_mst_get_hw_state(struct intel_connector *connector)

static void intel_connector_add_to_fbdev(struct intel_connector *connector)
{
-#ifdef CONFIG_DRM_I915_FBDEV
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
- drm_fb_helper_add_one_connector(&dev_priv->fbdev->helper, &connector->base);
-#endif
+
+ if (dev_priv->fbdev)
+ drm_fb_helper_add_one_connector(&dev_priv->fbdev->helper,
+ &connector->base);
}

static void intel_connector_remove_from_fbdev(struct intel_connector *connector)
{
-#ifdef CONFIG_DRM_I915_FBDEV
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
- drm_fb_helper_remove_one_connector(&dev_priv->fbdev->helper, &connector->base);
-#endif
+
+ if (dev_priv->fbdev)
+ drm_fb_helper_remove_one_connector(&dev_priv->fbdev->helper,
+ &connector->base);
}

static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *pathprop)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index eef79cc..6920da2 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1062,12 +1062,11 @@ void intel_dvo_init(struct drm_device *dev);


/* legacy fbdev emulation in intel_fbdev.c */
-#ifdef CONFIG_DRM_I915_FBDEV
+#ifdef CONFIG_DRM_FBDEV_EMULATION
extern int intel_fbdev_init(struct drm_device *dev);
extern void intel_fbdev_initial_config(void *data, async_cookie_t cookie);
extern void intel_fbdev_fini(struct drm_device *dev);
extern void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
-extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
extern void intel_fbdev_restore_mode(struct drm_device *dev);
#else
static inline int intel_fbdev_init(struct drm_device *dev)
diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c
index 3001a867..656ec1c 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -762,13 +762,6 @@ void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous
console_unlock();
}

-void intel_fbdev_output_poll_changed(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- if (dev_priv->fbdev)
- drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper);
-}
-
void intel_fbdev_restore_mode(struct drm_device *dev)
{
int ret;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/