![Dave Airlie](/assets/img/avatar_default.png)
Looking at hibernate overwriting I though it looked like a cursor, so I tracked down this missing piece to stop the cursor blink timer. I've no idea if this is sufficient to fix the hibernate problems people are seeing, but please test it. Both radeon and nouveau have done this for a long time. I've run this personally all night hib/resume cycles with no fails. Reviewed-by: Keith Packard <keithp@keithp.com> Reported-by: Petr Tesarik <kernel@tesarici.cz> Reported-by: Stanislaw Gruszka <sgruszka@redhat.com> Reported-by: Lots of misc segfaults after hibernate across the world. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=37142 Tested-by: Dave Airlie <airlied@redhat.com> Tested-by: Bojan Smojver <bojan@rexursive.com> Tested-by: Andreas Hartmann <andihartmann@01019freenet.de> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
290 lines
7.5 KiB
C
290 lines
7.5 KiB
C
/*
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* Copyright © 2007 David Airlie
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* David Airlie
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/tty.h>
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#include <linux/sysrq.h>
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#include <linux/delay.h>
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#include <linux/fb.h>
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#include <linux/init.h>
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#include <linux/vga_switcheroo.h>
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#include "drmP.h"
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#include "drm.h"
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#include "drm_crtc.h"
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#include "drm_fb_helper.h"
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#include "intel_drv.h"
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#include "i915_drm.h"
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#include "i915_drv.h"
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static struct fb_ops intelfb_ops = {
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.owner = THIS_MODULE,
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.fb_check_var = drm_fb_helper_check_var,
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.fb_set_par = drm_fb_helper_set_par,
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.fb_fillrect = cfb_fillrect,
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.fb_copyarea = cfb_copyarea,
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.fb_imageblit = cfb_imageblit,
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.fb_pan_display = drm_fb_helper_pan_display,
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.fb_blank = drm_fb_helper_blank,
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.fb_setcmap = drm_fb_helper_setcmap,
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.fb_debug_enter = drm_fb_helper_debug_enter,
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.fb_debug_leave = drm_fb_helper_debug_leave,
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};
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static int intelfb_create(struct intel_fbdev *ifbdev,
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struct drm_fb_helper_surface_size *sizes)
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{
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struct drm_device *dev = ifbdev->helper.dev;
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struct drm_i915_private *dev_priv = dev->dev_private;
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struct fb_info *info;
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struct drm_framebuffer *fb;
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struct drm_mode_fb_cmd2 mode_cmd;
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struct drm_i915_gem_object *obj;
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struct device *device = &dev->pdev->dev;
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int size, ret;
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/* we don't do packed 24bpp */
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if (sizes->surface_bpp == 24)
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sizes->surface_bpp = 32;
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mode_cmd.width = sizes->surface_width;
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mode_cmd.height = sizes->surface_height;
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mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((sizes->surface_bpp + 7) /
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8), 64);
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mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
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sizes->surface_depth);
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size = mode_cmd.pitches[0] * mode_cmd.height;
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size = ALIGN(size, PAGE_SIZE);
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obj = i915_gem_alloc_object(dev, size);
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if (!obj) {
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DRM_ERROR("failed to allocate framebuffer\n");
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ret = -ENOMEM;
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goto out;
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}
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mutex_lock(&dev->struct_mutex);
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/* Flush everything out, we'll be doing GTT only from now on */
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ret = intel_pin_and_fence_fb_obj(dev, obj, false);
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if (ret) {
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DRM_ERROR("failed to pin fb: %d\n", ret);
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goto out_unref;
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}
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info = framebuffer_alloc(0, device);
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if (!info) {
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ret = -ENOMEM;
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goto out_unpin;
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}
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info->par = ifbdev;
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ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
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if (ret)
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goto out_unpin;
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fb = &ifbdev->ifb.base;
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ifbdev->helper.fb = fb;
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ifbdev->helper.fbdev = info;
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strcpy(info->fix.id, "inteldrmfb");
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info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
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info->fbops = &intelfb_ops;
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ret = fb_alloc_cmap(&info->cmap, 256, 0);
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if (ret) {
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ret = -ENOMEM;
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goto out_unpin;
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}
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/* setup aperture base/size for vesafb takeover */
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info->apertures = alloc_apertures(1);
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if (!info->apertures) {
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ret = -ENOMEM;
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goto out_unpin;
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}
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info->apertures->ranges[0].base = dev->mode_config.fb_base;
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info->apertures->ranges[0].size =
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dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
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info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset;
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info->fix.smem_len = size;
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info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size);
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if (!info->screen_base) {
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ret = -ENOSPC;
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goto out_unpin;
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}
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info->screen_size = size;
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// memset(info->screen_base, 0, size);
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drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
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drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
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/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
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DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
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fb->width, fb->height,
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obj->gtt_offset, obj);
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mutex_unlock(&dev->struct_mutex);
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vga_switcheroo_client_fb_set(dev->pdev, info);
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return 0;
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out_unpin:
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i915_gem_object_unpin(obj);
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out_unref:
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drm_gem_object_unreference(&obj->base);
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mutex_unlock(&dev->struct_mutex);
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out:
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return ret;
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}
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static int intel_fb_find_or_create_single(struct drm_fb_helper *helper,
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struct drm_fb_helper_surface_size *sizes)
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{
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struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper;
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int new_fb = 0;
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int ret;
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if (!helper->fb) {
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ret = intelfb_create(ifbdev, sizes);
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if (ret)
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return ret;
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new_fb = 1;
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}
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return new_fb;
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}
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static struct drm_fb_helper_funcs intel_fb_helper_funcs = {
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.gamma_set = intel_crtc_fb_gamma_set,
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.gamma_get = intel_crtc_fb_gamma_get,
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.fb_probe = intel_fb_find_or_create_single,
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};
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static void intel_fbdev_destroy(struct drm_device *dev,
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struct intel_fbdev *ifbdev)
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{
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struct fb_info *info;
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struct intel_framebuffer *ifb = &ifbdev->ifb;
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if (ifbdev->helper.fbdev) {
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info = ifbdev->helper.fbdev;
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unregister_framebuffer(info);
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iounmap(info->screen_base);
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if (info->cmap.len)
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fb_dealloc_cmap(&info->cmap);
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framebuffer_release(info);
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}
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drm_fb_helper_fini(&ifbdev->helper);
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drm_framebuffer_cleanup(&ifb->base);
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if (ifb->obj) {
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drm_gem_object_unreference_unlocked(&ifb->obj->base);
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ifb->obj = NULL;
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}
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}
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int intel_fbdev_init(struct drm_device *dev)
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{
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struct intel_fbdev *ifbdev;
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drm_i915_private_t *dev_priv = dev->dev_private;
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int ret;
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ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL);
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if (!ifbdev)
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return -ENOMEM;
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dev_priv->fbdev = ifbdev;
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ifbdev->helper.funcs = &intel_fb_helper_funcs;
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ret = drm_fb_helper_init(dev, &ifbdev->helper,
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dev_priv->num_pipe,
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INTELFB_CONN_LIMIT);
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if (ret) {
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kfree(ifbdev);
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return ret;
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}
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drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
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drm_fb_helper_initial_config(&ifbdev->helper, 32);
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return 0;
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}
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void intel_fbdev_fini(struct drm_device *dev)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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if (!dev_priv->fbdev)
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return;
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intel_fbdev_destroy(dev, dev_priv->fbdev);
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kfree(dev_priv->fbdev);
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dev_priv->fbdev = NULL;
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}
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void intel_fbdev_set_suspend(struct drm_device *dev, int state)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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if (!dev_priv->fbdev)
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return;
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fb_set_suspend(dev_priv->fbdev->helper.fbdev, state);
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}
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MODULE_LICENSE("GPL and additional rights");
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void intel_fb_output_poll_changed(struct drm_device *dev)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper);
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}
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void intel_fb_restore_mode(struct drm_device *dev)
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{
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int ret;
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drm_i915_private_t *dev_priv = dev->dev_private;
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struct drm_mode_config *config = &dev->mode_config;
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struct drm_plane *plane;
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ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper);
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if (ret)
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DRM_DEBUG("failed to restore crtc mode\n");
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/* Be sure to shut off any planes that may be active */
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list_for_each_entry(plane, &config->plane_list, head)
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plane->funcs->disable_plane(plane);
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}
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