From 8bcd45534ddf68ab71aeed709dacd9cf65dc0f75 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Fri, 7 Feb 2014 12:10:38 -0800 Subject: [PATCH] drm/i915: alloc intel_fb in the intel_fbdev struct Allocate this struct instead, so we can re-use another allocated elsewhere if needed. Signed-off-by: Jesse Barnes [danvet: WARN_ON if there's no backing storage attached to an fb, that's a bug.] Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 4 ++-- drivers/gpu/drm/i915/intel_drv.h | 2 +- drivers/gpu/drm/i915/intel_fbdev.c | 27 +++++++++++++++++++-------- 3 files changed, 22 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 807e815503d0..ac0f6b5cfdfa 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7769,11 +7769,11 @@ mode_fits_in_fbdev(struct drm_device *dev, if (dev_priv->fbdev == NULL) return NULL; - obj = dev_priv->fbdev->ifb.obj; + obj = dev_priv->fbdev->fb->obj; if (obj == NULL) return NULL; - fb = &dev_priv->fbdev->ifb.base; + fb = &dev_priv->fbdev->fb->base; if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, fb->bits_per_pixel)) return NULL; diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 44067bce5e04..4386faf34a9b 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -110,7 +110,7 @@ struct intel_framebuffer { struct intel_fbdev { struct drm_fb_helper helper; - struct intel_framebuffer ifb; + struct intel_framebuffer *fb; struct list_head fbdev_list; struct drm_display_mode *our_mode; }; diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c index d6a8a716018d..cd969c3c301e 100644 --- a/drivers/gpu/drm/i915/intel_fbdev.c +++ b/drivers/gpu/drm/i915/intel_fbdev.c @@ -62,11 +62,20 @@ static int intelfb_alloc(struct drm_fb_helper *helper, { struct intel_fbdev *ifbdev = container_of(helper, struct intel_fbdev, helper); + struct intel_framebuffer *fb; struct drm_device *dev = helper->dev; struct drm_mode_fb_cmd2 mode_cmd = {}; struct drm_i915_gem_object *obj; int size, ret; + fb = kzalloc(sizeof(*fb), GFP_KERNEL); + if (!fb) { + ret = -ENOMEM; + goto out; + } + + ifbdev->fb = fb; + /* we don't do packed 24bpp */ if (sizes->surface_bpp == 24) sizes->surface_bpp = 32; @@ -97,7 +106,7 @@ static int intelfb_alloc(struct drm_fb_helper *helper, goto out_unref; } - ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj); + ret = intel_framebuffer_init(dev, ifbdev->fb, &mode_cmd, obj); if (ret) goto out_unpin; @@ -116,7 +125,7 @@ static int intelfb_create(struct drm_fb_helper *helper, { struct intel_fbdev *ifbdev = container_of(helper, struct intel_fbdev, helper); - struct intel_framebuffer *intel_fb = &ifbdev->ifb; + struct intel_framebuffer *intel_fb = ifbdev->fb; struct drm_device *dev = helper->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct fb_info *info; @@ -126,11 +135,12 @@ static int intelfb_create(struct drm_fb_helper *helper, mutex_lock(&dev->struct_mutex); - if (!intel_fb->obj) { + if (!intel_fb || WARN_ON(!intel_fb->obj)) { DRM_DEBUG_KMS("no BIOS fb, allocating a new one\n"); ret = intelfb_alloc(helper, sizes); if (ret) goto out_unlock; + intel_fb = ifbdev->fb; } else { DRM_DEBUG_KMS("re-using BIOS fb\n"); sizes->fb_width = intel_fb->base.width; @@ -148,7 +158,7 @@ static int intelfb_create(struct drm_fb_helper *helper, info->par = helper; - fb = &ifbdev->ifb.base; + fb = &ifbdev->fb->base; ifbdev->helper.fb = fb; ifbdev->helper.fbdev = info; @@ -194,7 +204,7 @@ static int intelfb_create(struct drm_fb_helper *helper, * If the object is stolen however, it will be full of whatever * garbage was left in there. */ - if (ifbdev->ifb.obj->stolen) + if (ifbdev->fb->obj->stolen) memset_io(info->screen_base, 0, info->screen_size); /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ @@ -258,8 +268,9 @@ static void intel_fbdev_destroy(struct drm_device *dev, drm_fb_helper_fini(&ifbdev->helper); - drm_framebuffer_unregister_private(&ifbdev->ifb.base); - intel_framebuffer_fini(&ifbdev->ifb); + drm_framebuffer_unregister_private(&ifbdev->fb->base); + intel_framebuffer_fini(ifbdev->fb); + kfree(ifbdev->fb); } int intel_fbdev_init(struct drm_device *dev) @@ -322,7 +333,7 @@ void intel_fbdev_set_suspend(struct drm_device *dev, int state) * 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) + if (state == FBINFO_STATE_RUNNING && ifbdev->fb->obj->stolen) memset_io(info->screen_base, 0, info->screen_size); fb_set_suspend(info, state); -- 2.20.1