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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /drivers/gpu/drm/i915/intel_fb.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'drivers/gpu/drm/i915/intel_fb.c')
-rw-r--r--drivers/gpu/drm/i915/intel_fb.c293
1 files changed, 293 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
new file mode 100644
index 00000000..6e9ee33f
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -0,0 +1,293 @@
+/*
+ * 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 "drmP.h"
+#include "drm.h"
+#include "drm_crtc.h"
+#include "drm_fb_helper.h"
+#include "intel_drv.h"
+#include "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 intel_fbdev *ifbdev,
+ struct drm_fb_helper_surface_size *sizes)
+{
+ struct drm_device *dev = ifbdev->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_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, false);
+ 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 = ifbdev;
+
+ 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->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
+
+ info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset;
+ info->fix.smem_len = size;
+
+ info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size);
+ if (!info->screen_base) {
+ ret = -ENOSPC;
+ goto out_unpin;
+ }
+ info->screen_size = size;
+
+// memset(info->screen_base, 0, size);
+
+ 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);
+
+ /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
+
+ DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
+ fb->width, fb->height,
+ obj->gtt_offset, 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;
+}
+
+static int intel_fb_find_or_create_single(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size *sizes)
+{
+ struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper;
+ int new_fb = 0;
+ int ret;
+
+ if (!helper->fb) {
+ ret = intelfb_create(ifbdev, sizes);
+ if (ret)
+ return ret;
+ new_fb = 1;
+ }
+ return new_fb;
+}
+
+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 = intel_fb_find_or_create_single,
+};
+
+static void intel_fbdev_destroy(struct drm_device *dev,
+ struct intel_fbdev *ifbdev)
+{
+ struct fb_info *info;
+ struct intel_framebuffer *ifb = &ifbdev->ifb;
+
+ if (ifbdev->helper.fbdev) {
+ 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_cleanup(&ifb->base);
+ if (ifb->obj) {
+ drm_gem_object_unreference_unlocked(&ifb->obj->base);
+ ifb->obj = NULL;
+ }
+}
+
+int intel_fbdev_init(struct drm_device *dev)
+{
+ struct intel_fbdev *ifbdev;
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ int ret;
+
+ ifbdev = kzalloc(sizeof(struct intel_fbdev), 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,
+ dev_priv->num_pipe,
+ INTELFB_CONN_LIMIT);
+ if (ret) {
+ kfree(ifbdev);
+ return ret;
+ }
+
+ drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
+ drm_fb_helper_initial_config(&ifbdev->helper, 32);
+ return 0;
+}
+
+void intel_fbdev_fini(struct drm_device *dev)
+{
+ drm_i915_private_t *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)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ if (!dev_priv->fbdev)
+ return;
+
+ fb_set_suspend(dev_priv->fbdev->helper.fbdev, state);
+}
+
+MODULE_LICENSE("GPL and additional rights");
+
+void intel_fb_output_poll_changed(struct drm_device *dev)
+{
+ drm_i915_private_t *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;
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_mode_config *config = &dev->mode_config;
+ struct drm_plane *plane;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper);
+ if (ret)
+ DRM_DEBUG("failed to restore crtc mode\n");
+
+ /* Be sure to shut off any planes that may be active */
+ list_for_each_entry(plane, &config->plane_list, head)
+ plane->funcs->disable_plane(plane);
+
+ mutex_unlock(&dev->mode_config.mutex);
+}