blob: 6d22cf978f45323456436fcd7716ac47fbdb7bc4 [file] [log] [blame]
From af442c6b82d7bc0c8140691aa42ab43dd5b4abd8 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 8 Oct 2013 17:44:49 +0200
Subject: drm/i915: rename intel_fb.c to intel_fbdev.c
This file is all about the legacy fbdev support. If we want to extract
framebuffer functions, we better put those into a separate file.
Also rename functions accordingly, only two have used the intel_fb_
prefix anyway.
Reviewed-by: Chon Ming Lee <chon.ming.lee@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit 0632fef669912a63c99c8ce4c2ca10c6ea04f0df)
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
---
drivers/gpu/drm/i915/Makefile | 2
drivers/gpu/drm/i915/i915_dma.c | 2
drivers/gpu/drm/i915/intel_display.c | 4
drivers/gpu/drm/i915/intel_drv.h | 8
drivers/gpu/drm/i915/intel_fb.c | 323 -----------------------------------
drivers/gpu/drm/i915/intel_fbdev.c | 323 +++++++++++++++++++++++++++++++++++
6 files changed, 331 insertions(+), 331 deletions(-)
rename drivers/gpu/drm/i915/{intel_fb.c => intel_fbdev.c} (98%)
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -53,7 +53,7 @@ i915-$(CONFIG_COMPAT) += i915_ioc32.o
i915-$(CONFIG_ACPI) += intel_acpi.o
-i915-$(CONFIG_DRM_I915_FBDEV) += intel_fb.o
+i915-$(CONFIG_DRM_I915_FBDEV) += intel_fbdev.o
obj-$(CONFIG_DRM_I915) += i915.o
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1862,7 +1862,7 @@ void i915_driver_lastclose(struct drm_de
return;
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
- intel_fb_restore_mode(dev);
+ intel_fbdev_restore_mode(dev);
vga_switcheroo_process_delayed_switch();
return;
}
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10106,14 +10106,14 @@ intel_user_framebuffer_create(struct drm
}
#ifndef CONFIG_DRM_I915_FBDEV
-static inline void intel_fb_output_poll_changed(struct drm_device *dev)
+static inline void intel_fbdev_output_poll_changed(struct drm_device *dev)
{
}
#endif
static const struct drm_mode_config_funcs intel_mode_funcs = {
.fb_create = intel_user_framebuffer_create,
- .output_poll_changed = intel_fb_output_poll_changed,
+ .output_poll_changed = intel_fbdev_output_poll_changed,
};
/* Set up chip specific display functions */
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -713,14 +713,14 @@ bool intel_dsi_init(struct drm_device *d
void intel_dvo_init(struct drm_device *dev);
-/* legacy fbdev emulation in intel_fb.c */
+/* legacy fbdev emulation in intel_fbdev.c */
#ifdef CONFIG_DRM_I915_FBDEV
extern int intel_fbdev_init(struct drm_device *dev);
extern void intel_fbdev_initial_config(struct drm_device *dev);
extern void intel_fbdev_fini(struct drm_device *dev);
extern void intel_fbdev_set_suspend(struct drm_device *dev, int state);
-extern void intel_fb_output_poll_changed(struct drm_device *dev);
-extern void intel_fb_restore_mode(struct drm_device *dev);
+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)
{
@@ -739,7 +739,7 @@ static inline void intel_fbdev_set_suspe
{
}
-static inline void intel_fb_restore_mode(struct drm_device *dev)
+static inline void intel_fbdev_restore_mode(struct drm_device *dev)
{
}
#endif
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ /dev/null
@@ -1,323 +0,0 @@
-/*
- * Copyright © 2007 David Airlie
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * David Airlie
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/tty.h>
-#include <linux/sysrq.h>
-#include <linux/delay.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/vga_switcheroo.h>
-
-#include <drm/drmP.h>
-#include <drm/drm_crtc.h>
-#include <drm/drm_fb_helper.h>
-#include "intel_drv.h"
-#include <drm/i915_drm.h>
-#include "i915_drv.h"
-
-static struct fb_ops intelfb_ops = {
- .owner = THIS_MODULE,
- .fb_check_var = drm_fb_helper_check_var,
- .fb_set_par = drm_fb_helper_set_par,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
- .fb_pan_display = drm_fb_helper_pan_display,
- .fb_blank = drm_fb_helper_blank,
- .fb_setcmap = drm_fb_helper_setcmap,
- .fb_debug_enter = drm_fb_helper_debug_enter,
- .fb_debug_leave = drm_fb_helper_debug_leave,
-};
-
-static int intelfb_create(struct drm_fb_helper *helper,
- struct drm_fb_helper_surface_size *sizes)
-{
- struct intel_fbdev *ifbdev =
- container_of(helper, struct intel_fbdev, helper);
- struct drm_device *dev = helper->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct fb_info *info;
- struct drm_framebuffer *fb;
- struct drm_mode_fb_cmd2 mode_cmd = {};
- struct drm_i915_gem_object *obj;
- struct device *device = &dev->pdev->dev;
- int size, ret;
-
- /* we don't do packed 24bpp */
- if (sizes->surface_bpp == 24)
- sizes->surface_bpp = 32;
-
- mode_cmd.width = sizes->surface_width;
- mode_cmd.height = sizes->surface_height;
-
- mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((sizes->surface_bpp + 7) /
- 8), 64);
- mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
- sizes->surface_depth);
-
- size = mode_cmd.pitches[0] * mode_cmd.height;
- size = ALIGN(size, PAGE_SIZE);
- obj = i915_gem_object_create_stolen(dev, size);
- if (obj == NULL)
- obj = i915_gem_alloc_object(dev, size);
- if (!obj) {
- DRM_ERROR("failed to allocate framebuffer\n");
- ret = -ENOMEM;
- goto out;
- }
-
- mutex_lock(&dev->struct_mutex);
-
- /* Flush everything out, we'll be doing GTT only from now on */
- ret = intel_pin_and_fence_fb_obj(dev, obj, NULL);
- if (ret) {
- DRM_ERROR("failed to pin fb: %d\n", ret);
- goto out_unref;
- }
-
- info = framebuffer_alloc(0, device);
- if (!info) {
- ret = -ENOMEM;
- goto out_unpin;
- }
-
- info->par = helper;
-
- ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
- if (ret)
- goto out_unpin;
-
- fb = &ifbdev->ifb.base;
-
- ifbdev->helper.fb = fb;
- ifbdev->helper.fbdev = info;
-
- strcpy(info->fix.id, "inteldrmfb");
-
- info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
- info->fbops = &intelfb_ops;
-
- ret = fb_alloc_cmap(&info->cmap, 256, 0);
- if (ret) {
- ret = -ENOMEM;
- goto out_unpin;
- }
- /* setup aperture base/size for vesafb takeover */
- info->apertures = alloc_apertures(1);
- if (!info->apertures) {
- ret = -ENOMEM;
- goto out_unpin;
- }
- info->apertures->ranges[0].base = dev->mode_config.fb_base;
- info->apertures->ranges[0].size = dev_priv->gtt.mappable_end;
-
- info->fix.smem_start = dev->mode_config.fb_base + i915_gem_obj_ggtt_offset(obj);
- info->fix.smem_len = size;
-
- info->screen_base =
- ioremap_wc(dev_priv->gtt.mappable_base + i915_gem_obj_ggtt_offset(obj),
- size);
- if (!info->screen_base) {
- ret = -ENOSPC;
- goto out_unpin;
- }
- info->screen_size = size;
-
- /* This driver doesn't need a VT switch to restore the mode on resume */
- info->skip_vt_switch = true;
-
- drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
- drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
-
- /* If the object is shmemfs backed, it will have given us zeroed pages.
- * If the object is stolen however, it will be full of whatever
- * garbage was left in there.
- */
- if (ifbdev->ifb.obj->stolen)
- memset_io(info->screen_base, 0, info->screen_size);
-
- /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
-
- DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08lx, bo %p\n",
- fb->width, fb->height,
- i915_gem_obj_ggtt_offset(obj), obj);
-
-
- mutex_unlock(&dev->struct_mutex);
- vga_switcheroo_client_fb_set(dev->pdev, info);
- return 0;
-
-out_unpin:
- i915_gem_object_unpin(obj);
-out_unref:
- drm_gem_object_unreference(&obj->base);
- mutex_unlock(&dev->struct_mutex);
-out:
- return ret;
-}
-
-/** Sets the color ramps on behalf of RandR */
-static void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
- u16 blue, int regno)
-{
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-
- intel_crtc->lut_r[regno] = red >> 8;
- intel_crtc->lut_g[regno] = green >> 8;
- intel_crtc->lut_b[regno] = blue >> 8;
-}
-
-static void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
- u16 *blue, int regno)
-{
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-
- *red = intel_crtc->lut_r[regno] << 8;
- *green = intel_crtc->lut_g[regno] << 8;
- *blue = intel_crtc->lut_b[regno] << 8;
-}
-
-static struct drm_fb_helper_funcs intel_fb_helper_funcs = {
- .gamma_set = intel_crtc_fb_gamma_set,
- .gamma_get = intel_crtc_fb_gamma_get,
- .fb_probe = intelfb_create,
-};
-
-static void intel_fbdev_destroy(struct drm_device *dev,
- struct intel_fbdev *ifbdev)
-{
- if (ifbdev->helper.fbdev) {
- struct fb_info *info = ifbdev->helper.fbdev;
-
- unregister_framebuffer(info);
- iounmap(info->screen_base);
- if (info->cmap.len)
- fb_dealloc_cmap(&info->cmap);
-
- framebuffer_release(info);
- }
-
- drm_fb_helper_fini(&ifbdev->helper);
-
- drm_framebuffer_unregister_private(&ifbdev->ifb.base);
- intel_framebuffer_fini(&ifbdev->ifb);
-}
-
-int intel_fbdev_init(struct drm_device *dev)
-{
- struct intel_fbdev *ifbdev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- int ret;
-
- ifbdev = kzalloc(sizeof(*ifbdev), GFP_KERNEL);
- if (!ifbdev)
- return -ENOMEM;
-
- dev_priv->fbdev = ifbdev;
- ifbdev->helper.funcs = &intel_fb_helper_funcs;
-
- ret = drm_fb_helper_init(dev, &ifbdev->helper,
- INTEL_INFO(dev)->num_pipes,
- 4);
- if (ret) {
- kfree(ifbdev);
- return ret;
- }
-
- drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
-
- return 0;
-}
-
-void intel_fbdev_initial_config(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
-
- /* Due to peculiar init order wrt to hpd handling this is separate. */
- drm_fb_helper_initial_config(&dev_priv->fbdev->helper, 32);
-}
-
-void intel_fbdev_fini(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- if (!dev_priv->fbdev)
- return;
-
- intel_fbdev_destroy(dev, dev_priv->fbdev);
- kfree(dev_priv->fbdev);
- dev_priv->fbdev = NULL;
-}
-
-void intel_fbdev_set_suspend(struct drm_device *dev, int state)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_fbdev *ifbdev = dev_priv->fbdev;
- struct fb_info *info;
-
- if (!ifbdev)
- return;
-
- info = ifbdev->helper.fbdev;
-
- /* On resume from hibernation: If the object is shmemfs backed, it has
- * been restored from swap. If the object is stolen however, it will be
- * full of whatever garbage was left in there.
- */
- if (state == FBINFO_STATE_RUNNING && ifbdev->ifb.obj->stolen)
- memset_io(info->screen_base, 0, info->screen_size);
-
- fb_set_suspend(info, state);
-}
-
-MODULE_LICENSE("GPL and additional rights");
-
-void intel_fb_output_poll_changed(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper);
-}
-
-void intel_fb_restore_mode(struct drm_device *dev)
-{
- int ret;
- struct drm_i915_private *dev_priv = dev->dev_private;
-
- if (INTEL_INFO(dev)->num_pipes == 0)
- return;
-
- drm_modeset_lock_all(dev);
-
- ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper);
- if (ret)
- DRM_DEBUG("failed to restore crtc mode\n");
-
- drm_modeset_unlock_all(dev);
-}
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -0,0 +1,323 @@
+/*
+ * Copyright © 2007 David Airlie
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * David Airlie
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/sysrq.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/vga_switcheroo.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_fb_helper.h>
+#include "intel_drv.h"
+#include <drm/i915_drm.h>
+#include "i915_drv.h"
+
+static struct fb_ops intelfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = drm_fb_helper_check_var,
+ .fb_set_par = drm_fb_helper_set_par,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_pan_display = drm_fb_helper_pan_display,
+ .fb_blank = drm_fb_helper_blank,
+ .fb_setcmap = drm_fb_helper_setcmap,
+ .fb_debug_enter = drm_fb_helper_debug_enter,
+ .fb_debug_leave = drm_fb_helper_debug_leave,
+};
+
+static int intelfb_create(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size *sizes)
+{
+ struct intel_fbdev *ifbdev =
+ container_of(helper, struct intel_fbdev, helper);
+ struct drm_device *dev = helper->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct fb_info *info;
+ struct drm_framebuffer *fb;
+ struct drm_mode_fb_cmd2 mode_cmd = {};
+ struct drm_i915_gem_object *obj;
+ struct device *device = &dev->pdev->dev;
+ int size, ret;
+
+ /* we don't do packed 24bpp */
+ if (sizes->surface_bpp == 24)
+ sizes->surface_bpp = 32;
+
+ mode_cmd.width = sizes->surface_width;
+ mode_cmd.height = sizes->surface_height;
+
+ mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((sizes->surface_bpp + 7) /
+ 8), 64);
+ mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+ sizes->surface_depth);
+
+ size = mode_cmd.pitches[0] * mode_cmd.height;
+ size = ALIGN(size, PAGE_SIZE);
+ obj = i915_gem_object_create_stolen(dev, size);
+ if (obj == NULL)
+ obj = i915_gem_alloc_object(dev, size);
+ if (!obj) {
+ DRM_ERROR("failed to allocate framebuffer\n");
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ mutex_lock(&dev->struct_mutex);
+
+ /* Flush everything out, we'll be doing GTT only from now on */
+ ret = intel_pin_and_fence_fb_obj(dev, obj, NULL);
+ if (ret) {
+ DRM_ERROR("failed to pin fb: %d\n", ret);
+ goto out_unref;
+ }
+
+ info = framebuffer_alloc(0, device);
+ if (!info) {
+ ret = -ENOMEM;
+ goto out_unpin;
+ }
+
+ info->par = helper;
+
+ ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
+ if (ret)
+ goto out_unpin;
+
+ fb = &ifbdev->ifb.base;
+
+ ifbdev->helper.fb = fb;
+ ifbdev->helper.fbdev = info;
+
+ strcpy(info->fix.id, "inteldrmfb");
+
+ info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
+ info->fbops = &intelfb_ops;
+
+ ret = fb_alloc_cmap(&info->cmap, 256, 0);
+ if (ret) {
+ ret = -ENOMEM;
+ goto out_unpin;
+ }
+ /* setup aperture base/size for vesafb takeover */
+ info->apertures = alloc_apertures(1);
+ if (!info->apertures) {
+ ret = -ENOMEM;
+ goto out_unpin;
+ }
+ info->apertures->ranges[0].base = dev->mode_config.fb_base;
+ info->apertures->ranges[0].size = dev_priv->gtt.mappable_end;
+
+ info->fix.smem_start = dev->mode_config.fb_base + i915_gem_obj_ggtt_offset(obj);
+ info->fix.smem_len = size;
+
+ info->screen_base =
+ ioremap_wc(dev_priv->gtt.mappable_base + i915_gem_obj_ggtt_offset(obj),
+ size);
+ if (!info->screen_base) {
+ ret = -ENOSPC;
+ goto out_unpin;
+ }
+ info->screen_size = size;
+
+ /* This driver doesn't need a VT switch to restore the mode on resume */
+ info->skip_vt_switch = true;
+
+ drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
+ drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
+
+ /* If the object is shmemfs backed, it will have given us zeroed pages.
+ * If the object is stolen however, it will be full of whatever
+ * garbage was left in there.
+ */
+ if (ifbdev->ifb.obj->stolen)
+ memset_io(info->screen_base, 0, info->screen_size);
+
+ /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
+
+ DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08lx, bo %p\n",
+ fb->width, fb->height,
+ i915_gem_obj_ggtt_offset(obj), obj);
+
+
+ mutex_unlock(&dev->struct_mutex);
+ vga_switcheroo_client_fb_set(dev->pdev, info);
+ return 0;
+
+out_unpin:
+ i915_gem_object_unpin(obj);
+out_unref:
+ drm_gem_object_unreference(&obj->base);
+ mutex_unlock(&dev->struct_mutex);
+out:
+ return ret;
+}
+
+/** Sets the color ramps on behalf of RandR */
+static void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
+ u16 blue, int regno)
+{
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+
+ intel_crtc->lut_r[regno] = red >> 8;
+ intel_crtc->lut_g[regno] = green >> 8;
+ intel_crtc->lut_b[regno] = blue >> 8;
+}
+
+static void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
+ u16 *blue, int regno)
+{
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+
+ *red = intel_crtc->lut_r[regno] << 8;
+ *green = intel_crtc->lut_g[regno] << 8;
+ *blue = intel_crtc->lut_b[regno] << 8;
+}
+
+static struct drm_fb_helper_funcs intel_fb_helper_funcs = {
+ .gamma_set = intel_crtc_fb_gamma_set,
+ .gamma_get = intel_crtc_fb_gamma_get,
+ .fb_probe = intelfb_create,
+};
+
+static void intel_fbdev_destroy(struct drm_device *dev,
+ struct intel_fbdev *ifbdev)
+{
+ if (ifbdev->helper.fbdev) {
+ struct fb_info *info = ifbdev->helper.fbdev;
+
+ unregister_framebuffer(info);
+ iounmap(info->screen_base);
+ if (info->cmap.len)
+ fb_dealloc_cmap(&info->cmap);
+
+ framebuffer_release(info);
+ }
+
+ drm_fb_helper_fini(&ifbdev->helper);
+
+ drm_framebuffer_unregister_private(&ifbdev->ifb.base);
+ intel_framebuffer_fini(&ifbdev->ifb);
+}
+
+int intel_fbdev_init(struct drm_device *dev)
+{
+ struct intel_fbdev *ifbdev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret;
+
+ ifbdev = kzalloc(sizeof(*ifbdev), GFP_KERNEL);
+ if (!ifbdev)
+ return -ENOMEM;
+
+ dev_priv->fbdev = ifbdev;
+ ifbdev->helper.funcs = &intel_fb_helper_funcs;
+
+ ret = drm_fb_helper_init(dev, &ifbdev->helper,
+ INTEL_INFO(dev)->num_pipes,
+ 4);
+ if (ret) {
+ kfree(ifbdev);
+ return ret;
+ }
+
+ drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
+
+ return 0;
+}
+
+void intel_fbdev_initial_config(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ /* Due to peculiar init order wrt to hpd handling this is separate. */
+ drm_fb_helper_initial_config(&dev_priv->fbdev->helper, 32);
+}
+
+void intel_fbdev_fini(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ if (!dev_priv->fbdev)
+ return;
+
+ intel_fbdev_destroy(dev, dev_priv->fbdev);
+ kfree(dev_priv->fbdev);
+ dev_priv->fbdev = NULL;
+}
+
+void intel_fbdev_set_suspend(struct drm_device *dev, int state)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_fbdev *ifbdev = dev_priv->fbdev;
+ struct fb_info *info;
+
+ if (!ifbdev)
+ return;
+
+ info = ifbdev->helper.fbdev;
+
+ /* On resume from hibernation: If the object is shmemfs backed, it has
+ * been restored from swap. If the object is stolen however, it will be
+ * full of whatever garbage was left in there.
+ */
+ if (state == FBINFO_STATE_RUNNING && ifbdev->ifb.obj->stolen)
+ memset_io(info->screen_base, 0, info->screen_size);
+
+ fb_set_suspend(info, state);
+}
+
+MODULE_LICENSE("GPL and additional rights");
+
+void intel_fbdev_output_poll_changed(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper);
+}
+
+void intel_fbdev_restore_mode(struct drm_device *dev)
+{
+ int ret;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ if (INTEL_INFO(dev)->num_pipes == 0)
+ return;
+
+ drm_modeset_lock_all(dev);
+
+ ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper);
+ if (ret)
+ DRM_DEBUG("failed to restore crtc mode\n");
+
+ drm_modeset_unlock_all(dev);
+}