twx-linux/drivers/gpu/drm at 43e319d7c0ff644ab767c19e7669c9bf5d41a5b2 - twx-linux - Gitea: Git with a cup of tea

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Maarten Lankhorst 0d6ad54b74 drm/core: Do not preserve framebuffer on rmfb, v4.

commit f2d580b9a8 upstream.

It turns out that preserving framebuffers after the rmfb call breaks
vmwgfx userspace. This was originally introduced because it was thought
nobody relied on the behavior, but unfortunately it seems there are
exceptions.

drm_framebuffer_remove may fail with -EINTR now, so a straight revert
is impossible. There is no way to remove the framebuffer from the lists
and active planes without introducing a race because of the different
locking requirements. Instead call drm_framebuffer_remove from a
workqueue, which is unaffected by signals.

Changes since v1:
- Add comment.
Changes since v2:
- Add fastpath for refcount = 1. (danvet)
Changes since v3:
- Rebased.
- Restore lastclose framebuffer removal too.

Fixes: 1380313281 ("drm/core: Preserve the framebuffer after removing it.")
Testcase: kms_rmfb_basic
References: https://lists.freedesktop.org/archives/dri-devel/2016-March/102876.html
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Thomas Hellstrom <thellstrom@vmware.com> #v3
Tested-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/6c63ca37-0e7e-ac7f-a6d2-c7822e3d611f@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2016-06-24 10:18:22 -07:00

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drm/amdgpu: Fix hdmi deep color support.

2016-06-07 18:14:36 -07:00

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drm/ast: Fix incorrect register check for DRAM width

2016-03-09 15:34:51 -08:00

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Merge tag 'drm/panel/for-4.4-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next

2015-11-05 11:07:13 +10:00

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drm/exynos: atomic check only enabled crtc states

2015-12-20 01:39:10 +09:00

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drm/gma500: Fix possible out of bounds read

2016-06-07 18:14:36 -07:00

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drm/i915: Don't leave old junk in ilk active watermarks on readout

2016-06-07 18:14:37 -07:00

drm/imx: Match imx-ipuv3-crtc components using device node in platform data

2016-06-07 18:14:37 -07:00

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drm/mgag200: fix kernel hang in cursor code.

2015-11-19 13:20:01 +10:00

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drm/nouveau/gr/gf100: select a stream master to fixup tfb offset queries

2016-05-04 14:48:46 -07:00

drm/omap: fix fbdev pix format to support all platforms

2015-12-14 10:00:22 +02:00

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drm/qxl: fix cursor position with non-zero hotspot

2016-05-04 14:48:43 -07:00

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drm/radeon: fix DP link training issue with second 4K monitor

2016-05-18 17:06:57 -07:00

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drm/rockchip: Use CRTC vblank event interface

2015-12-02 10:22:21 +08:00

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drm/sti: load HQVDP firmware the first time HQVDP's plane is used

2015-11-03 13:04:56 +01:00

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Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

2015-11-10 09:33:06 -08:00

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drm/ttm: Fixed a read/write lock imbalance

2015-11-26 15:47:38 +01:00

drm/udl: Use unlocked gem unreferencing

2016-04-20 15:41:55 +09:00

drm/vc4: Make sure that planes aren't scaled.

2015-11-17 12:27:03 -08:00

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virtio-gpu: use no-merge for fill-modes

2015-12-01 10:33:35 +10:00

drm/vmwgfx: Fix order of operation

2016-06-07 18:14:36 -07:00

ati_pcigart.c

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drm_agpsupport.c

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drm_atomic_helper.c

drm/atomic-helper: Check encoder/crtc constraints

2015-11-19 17:11:13 +02:00

drm_atomic.c

drm/atomic: Verify connector->funcs != NULL when clearing states

2016-06-07 18:14:37 -07:00

drm_auth.c

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drm_bridge.c

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drm_bufs.c

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drm_cache.c

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drm_context.c

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drm_crtc_helper.c

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drm_crtc_internal.h

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drm_crtc.c

drm/core: Do not preserve framebuffer on rmfb, v4.

2016-06-24 10:18:22 -07:00

drm_debugfs.c

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drm_dma.c

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drm_dp_helper.c

drm/dp: move hw_mutex up the call stack

2016-04-20 15:41:55 +09:00

drm_dp_mst_topology.c

drm/dp/mst: Get validated port ref in drm_dp_update_payload_part1()

2016-05-04 14:48:47 -07:00

drm_drv.c

drm: Fix an unwanted master inheritance v2

2015-12-04 12:28:14 +10:00

drm_edid_load.c

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drm_edid.c

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drm_encoder_slave.c

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drm_fb_cma_helper.c

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drm_fb_helper.c

drm/fb_helper: Fix references to dev->mode_config.num_connector

2016-06-07 18:14:36 -07:00

drm_flip_work.c

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drm_fops.c

drm: Fix an unwanted master inheritance v2

2015-12-04 12:28:14 +10:00

drm_gem_cma_helper.c

Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

2015-11-10 09:33:06 -08:00

drm_gem.c

Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

2015-11-10 09:33:06 -08:00

drm_global.c

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drm_hashtab.c

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drm_info.c

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drm_internal.h

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drm_ioc32.c

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drm_ioctl.c

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drm_irq.c

drm: Fix treatment of drm_vblank_offdelay in drm_vblank_on() (v2)

2016-03-03 15:07:23 -08:00

drm_legacy.h

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drm_lock.c

signals: kill block_all_signals() and unblock_all_signals()

2015-11-06 17:50:42 -08:00

drm_memory.c

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drm_mipi_dsi.c

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drm_mm.c

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drm_modes.c

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drm_modeset_lock.c

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drm_of.c

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drm_panel.c

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drm_pci.c

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drm_plane_helper.c

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drm_platform.c

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drm_prime.c

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drm_probe_helper.c

drm: Don't overwrite UNVERFIED mode status to OK

2015-12-15 11:00:10 +10:00

drm_rect.c

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drm_scatter.c

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drm_sysfs.c

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drm_trace_points.c

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drm_trace.h

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drm_vm.c

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drm_vma_manager.c

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Kconfig

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Makefile

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