diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_fb.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/cirrus/cirrus_fbdev.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 31 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_fb_cma_helper.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/gma500/framebuffer.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_fb.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_fb.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_fbcon.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_fb.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/udl/udl_fb.c | 1 |
12 files changed, 48 insertions, 7 deletions
diff --git a/drivers/gpu/drm/ast/ast_fb.c b/drivers/gpu/drm/ast/ast_fb.c index d9ec77959dff..3e6584b940dc 100644 --- a/drivers/gpu/drm/ast/ast_fb.c +++ b/drivers/gpu/drm/ast/ast_fb.c @@ -290,6 +290,7 @@ static void ast_fbdev_destroy(struct drm_device *dev, drm_fb_helper_fini(&afbdev->helper); vfree(afbdev->sysram); + drm_framebuffer_unregister_private(&afb->base); drm_framebuffer_cleanup(&afb->base); } diff --git a/drivers/gpu/drm/cirrus/cirrus_fbdev.c b/drivers/gpu/drm/cirrus/cirrus_fbdev.c index 6c6b4c87d309..3daea0f638c3 100644 --- a/drivers/gpu/drm/cirrus/cirrus_fbdev.c +++ b/drivers/gpu/drm/cirrus/cirrus_fbdev.c @@ -258,6 +258,7 @@ static int cirrus_fbdev_destroy(struct drm_device *dev, vfree(gfbdev->sysram); drm_fb_helper_fini(&gfbdev->helper); + drm_framebuffer_unregister_private(&gfb->base); drm_framebuffer_cleanup(&gfb->base); return 0; diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index f2ccda85309f..3eddfabeba96 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -68,6 +68,7 @@ void drm_modeset_unlock_all(struct drm_device *dev) mutex_unlock(&dev->mode_config.mutex); } + EXPORT_SYMBOL(drm_modeset_unlock_all); /* Avoid boilerplate. I'm tired of typing. */ @@ -430,11 +431,34 @@ void drm_framebuffer_reference(struct drm_framebuffer *fb) EXPORT_SYMBOL(drm_framebuffer_reference); /** + * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr + * @fb: fb to unregister + * + * Drivers need to call this when cleaning up driver-private framebuffers, e.g. + * those used for fbdev. Note that the caller must hold a reference of it's own, + * i.e. the object may not be destroyed through this call (since it'll lead to a + * locking inversion). + */ +void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) +{ +} +EXPORT_SYMBOL(drm_framebuffer_unregister_private); + +/** * drm_framebuffer_cleanup - remove a framebuffer object * @fb: framebuffer to remove * - * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes - * it, setting it to NULL. + * Cleanup references to a user-created framebuffer. This function is intended + * to be used from the drivers ->destroy callback. + * + * Note that this function does not remove the fb from active usuage - if it is + * still used anywhere, hilarity can ensue since userspace could call getfb on + * the id and get back -EINVAL. Obviously no concern at driver unload time. + * + * Also, the framebuffer will not be removed from the lookup idr - for + * user-created framebuffers this will happen in in the rmfb ioctl. For + * driver-private objects (e.g. for fbdev) drivers need to explicitly call + * drm_framebuffer_unregister_private. */ void drm_framebuffer_cleanup(struct drm_framebuffer *fb) { @@ -460,7 +484,8 @@ EXPORT_SYMBOL(drm_framebuffer_cleanup); * @fb: framebuffer to remove * * Scans all the CRTCs and planes in @dev's mode_config. If they're - * using @fb, removes it, setting it to NULL. + * using @fb, removes it, setting it to NULL. Then drops the reference to the + * passed-in framebuffer. */ void drm_framebuffer_remove(struct drm_framebuffer *fb) { diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c index e1e0cb0d531a..3742bc96421e 100644 --- a/drivers/gpu/drm/drm_fb_cma_helper.c +++ b/drivers/gpu/drm/drm_fb_cma_helper.c @@ -266,6 +266,7 @@ static int drm_fbdev_cma_create(struct drm_fb_helper *helper, return 0; err_drm_fb_cma_destroy: + drm_framebuffer_unregister_private(fb); drm_fb_cma_destroy(fb); err_framebuffer_release: framebuffer_release(fbi); @@ -370,8 +371,10 @@ void drm_fbdev_cma_fini(struct drm_fbdev_cma *fbdev_cma) framebuffer_release(info); } - if (fbdev_cma->fb) + if (fbdev_cma->fb) { + drm_framebuffer_unregister_private(&fbdev_cma->fb->fb); drm_fb_cma_destroy(&fbdev_cma->fb->fb); + } drm_fb_helper_fini(&fbdev_cma->fb_helper); kfree(fbdev_cma); diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 71f867340a88..90d335cfb8c0 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -326,8 +326,10 @@ static void exynos_drm_fbdev_destroy(struct drm_device *dev, /* release drm framebuffer and real buffer */ if (fb_helper->fb && fb_helper->fb->funcs) { fb = fb_helper->fb; - if (fb) + if (fb) { + drm_framebuffer_unregister_private(fb); drm_framebuffer_remove(fb); + } } /* release linux framebuffer */ diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c index 49800d2b79dd..c1ef37e2efdf 100644 --- a/drivers/gpu/drm/gma500/framebuffer.c +++ b/drivers/gpu/drm/gma500/framebuffer.c @@ -590,6 +590,7 @@ static int psb_fbdev_destroy(struct drm_device *dev, struct psb_fbdev *fbdev) framebuffer_release(info); } drm_fb_helper_fini(&fbdev->psb_fb_helper); + drm_framebuffer_unregister_private(&psbfb->base); drm_framebuffer_cleanup(&psbfb->base); if (psbfb->gtt) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 26fa6a795afe..df51203dcebd 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6789,8 +6789,10 @@ void intel_release_load_detect_pipe(struct drm_connector *connector, intel_encoder->new_crtc = NULL; intel_set_mode(crtc, NULL, 0, 0, NULL); - if (old->release_fb) - old->release_fb->funcs->destroy(old->release_fb); + if (old->release_fb) { + drm_framebuffer_unregister_private(old->release_fb); + drm_framebuffer_unreference(old->release_fb); + } return; } diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c index a9f7280f87fb..c7b8316137e9 100644 --- a/drivers/gpu/drm/i915/intel_fb.c +++ b/drivers/gpu/drm/i915/intel_fb.c @@ -212,6 +212,7 @@ static void intel_fbdev_destroy(struct drm_device *dev, drm_fb_helper_fini(&ifbdev->helper); + drm_framebuffer_unregister_private(&ifb->base); drm_framebuffer_cleanup(&ifb->base); if (ifb->obj) { drm_gem_object_unreference_unlocked(&ifb->obj->base); diff --git a/drivers/gpu/drm/mgag200/mgag200_fb.c b/drivers/gpu/drm/mgag200/mgag200_fb.c index 2f486481d79a..5c69b432f99a 100644 --- a/drivers/gpu/drm/mgag200/mgag200_fb.c +++ b/drivers/gpu/drm/mgag200/mgag200_fb.c @@ -247,6 +247,7 @@ static int mga_fbdev_destroy(struct drm_device *dev, } drm_fb_helper_fini(&mfbdev->helper); vfree(mfbdev->sysram); + drm_framebuffer_unregister_private(&mfb->base); drm_framebuffer_cleanup(&mfb->base); return 0; diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index 67a1a069de28..d4ecb4deb484 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -433,6 +433,7 @@ nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *fbcon) nouveau_fb->nvbo = NULL; } drm_fb_helper_fini(&fbcon->helper); + drm_framebuffer_unregister_private(&nouveau_fb->base); drm_framebuffer_cleanup(&nouveau_fb->base); return 0; } diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c index cc8489d8c6d1..515e5ee1f9ee 100644 --- a/drivers/gpu/drm/radeon/radeon_fb.c +++ b/drivers/gpu/drm/radeon/radeon_fb.c @@ -293,6 +293,7 @@ out_unref: } if (fb && ret) { drm_gem_object_unreference(gobj); + drm_framebuffer_unregister_private(fb); drm_framebuffer_cleanup(fb); kfree(fb); } @@ -339,6 +340,7 @@ static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfb rfb->obj = NULL; } drm_fb_helper_fini(&rfbdev->helper); + drm_framebuffer_unregister_private(&rfb->base); drm_framebuffer_cleanup(&rfb->base); return 0; diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c index f8904b4e68de..caa84f1de9c1 100644 --- a/drivers/gpu/drm/udl/udl_fb.c +++ b/drivers/gpu/drm/udl/udl_fb.c @@ -555,6 +555,7 @@ static void udl_fbdev_destroy(struct drm_device *dev, framebuffer_release(info); } drm_fb_helper_fini(&ufbdev->helper); + drm_framebuffer_unregister_private(&ufbdev->ufb.base); drm_framebuffer_cleanup(&ufbdev->ufb.base); drm_gem_object_unreference_unlocked(&ufbdev->ufb.obj->base); } |
